Clone sys/windows into local folder
This commit is contained in:
parent
e37bac0138
commit
c9f615cb42
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// Copyright 2018 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build gc
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// +build gc
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#include "textflag.h"
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//
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// System calls for ppc64, AIX are implemented in runtime/syscall_aix.go
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//
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TEXT ·syscall6(SB),NOSPLIT,$0-88
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JMP syscall·syscall6(SB)
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TEXT ·rawSyscall6(SB),NOSPLIT,$0-88
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JMP syscall·rawSyscall6(SB)
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// Copyright 2019 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package cpu
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import (
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"runtime"
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)
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// byteOrder is a subset of encoding/binary.ByteOrder.
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type byteOrder interface {
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Uint32([]byte) uint32
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Uint64([]byte) uint64
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}
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type littleEndian struct{}
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type bigEndian struct{}
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func (littleEndian) Uint32(b []byte) uint32 {
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_ = b[3] // bounds check hint to compiler; see golang.org/issue/14808
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return uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24
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}
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func (littleEndian) Uint64(b []byte) uint64 {
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_ = b[7] // bounds check hint to compiler; see golang.org/issue/14808
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return uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 |
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uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56
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}
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func (bigEndian) Uint32(b []byte) uint32 {
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_ = b[3] // bounds check hint to compiler; see golang.org/issue/14808
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return uint32(b[3]) | uint32(b[2])<<8 | uint32(b[1])<<16 | uint32(b[0])<<24
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}
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func (bigEndian) Uint64(b []byte) uint64 {
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_ = b[7] // bounds check hint to compiler; see golang.org/issue/14808
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return uint64(b[7]) | uint64(b[6])<<8 | uint64(b[5])<<16 | uint64(b[4])<<24 |
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uint64(b[3])<<32 | uint64(b[2])<<40 | uint64(b[1])<<48 | uint64(b[0])<<56
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}
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// hostByteOrder returns littleEndian on little-endian machines and
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// bigEndian on big-endian machines.
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func hostByteOrder() byteOrder {
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switch runtime.GOARCH {
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case "386", "amd64", "amd64p32",
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"alpha",
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"arm", "arm64",
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"mipsle", "mips64le", "mips64p32le",
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"nios2",
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"ppc64le",
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"riscv", "riscv64",
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"sh":
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return littleEndian{}
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case "armbe", "arm64be",
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"m68k",
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"mips", "mips64", "mips64p32",
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"ppc", "ppc64",
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"s390", "s390x",
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"shbe",
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"sparc", "sparc64":
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return bigEndian{}
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}
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panic("unknown architecture")
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}
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// Copyright 2018 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Package cpu implements processor feature detection for
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// various CPU architectures.
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package cpu
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import (
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"os"
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"strings"
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)
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// Initialized reports whether the CPU features were initialized.
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//
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// For some GOOS/GOARCH combinations initialization of the CPU features depends
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// on reading an operating specific file, e.g. /proc/self/auxv on linux/arm
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// Initialized will report false if reading the file fails.
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var Initialized bool
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// CacheLinePad is used to pad structs to avoid false sharing.
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type CacheLinePad struct{ _ [cacheLineSize]byte }
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// X86 contains the supported CPU features of the
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// current X86/AMD64 platform. If the current platform
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// is not X86/AMD64 then all feature flags are false.
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//
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// X86 is padded to avoid false sharing. Further the HasAVX
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// and HasAVX2 are only set if the OS supports XMM and YMM
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// registers in addition to the CPUID feature bit being set.
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var X86 struct {
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_ CacheLinePad
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HasAES bool // AES hardware implementation (AES NI)
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HasADX bool // Multi-precision add-carry instruction extensions
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HasAVX bool // Advanced vector extension
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HasAVX2 bool // Advanced vector extension 2
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HasAVX512 bool // Advanced vector extension 512
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HasAVX512F bool // Advanced vector extension 512 Foundation Instructions
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HasAVX512CD bool // Advanced vector extension 512 Conflict Detection Instructions
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HasAVX512ER bool // Advanced vector extension 512 Exponential and Reciprocal Instructions
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HasAVX512PF bool // Advanced vector extension 512 Prefetch Instructions Instructions
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HasAVX512VL bool // Advanced vector extension 512 Vector Length Extensions
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HasAVX512BW bool // Advanced vector extension 512 Byte and Word Instructions
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HasAVX512DQ bool // Advanced vector extension 512 Doubleword and Quadword Instructions
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HasAVX512IFMA bool // Advanced vector extension 512 Integer Fused Multiply Add
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HasAVX512VBMI bool // Advanced vector extension 512 Vector Byte Manipulation Instructions
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HasAVX5124VNNIW bool // Advanced vector extension 512 Vector Neural Network Instructions Word variable precision
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HasAVX5124FMAPS bool // Advanced vector extension 512 Fused Multiply Accumulation Packed Single precision
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HasAVX512VPOPCNTDQ bool // Advanced vector extension 512 Double and quad word population count instructions
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HasAVX512VPCLMULQDQ bool // Advanced vector extension 512 Vector carry-less multiply operations
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HasAVX512VNNI bool // Advanced vector extension 512 Vector Neural Network Instructions
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HasAVX512GFNI bool // Advanced vector extension 512 Galois field New Instructions
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HasAVX512VAES bool // Advanced vector extension 512 Vector AES instructions
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HasAVX512VBMI2 bool // Advanced vector extension 512 Vector Byte Manipulation Instructions 2
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HasAVX512BITALG bool // Advanced vector extension 512 Bit Algorithms
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HasAVX512BF16 bool // Advanced vector extension 512 BFloat16 Instructions
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HasBMI1 bool // Bit manipulation instruction set 1
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HasBMI2 bool // Bit manipulation instruction set 2
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HasERMS bool // Enhanced REP for MOVSB and STOSB
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HasFMA bool // Fused-multiply-add instructions
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HasOSXSAVE bool // OS supports XSAVE/XRESTOR for saving/restoring XMM registers.
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HasPCLMULQDQ bool // PCLMULQDQ instruction - most often used for AES-GCM
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HasPOPCNT bool // Hamming weight instruction POPCNT.
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HasRDRAND bool // RDRAND instruction (on-chip random number generator)
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HasRDSEED bool // RDSEED instruction (on-chip random number generator)
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HasSSE2 bool // Streaming SIMD extension 2 (always available on amd64)
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HasSSE3 bool // Streaming SIMD extension 3
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HasSSSE3 bool // Supplemental streaming SIMD extension 3
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HasSSE41 bool // Streaming SIMD extension 4 and 4.1
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HasSSE42 bool // Streaming SIMD extension 4 and 4.2
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_ CacheLinePad
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}
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// ARM64 contains the supported CPU features of the
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// current ARMv8(aarch64) platform. If the current platform
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// is not arm64 then all feature flags are false.
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var ARM64 struct {
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_ CacheLinePad
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HasFP bool // Floating-point instruction set (always available)
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HasASIMD bool // Advanced SIMD (always available)
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HasEVTSTRM bool // Event stream support
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HasAES bool // AES hardware implementation
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HasPMULL bool // Polynomial multiplication instruction set
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HasSHA1 bool // SHA1 hardware implementation
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HasSHA2 bool // SHA2 hardware implementation
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HasCRC32 bool // CRC32 hardware implementation
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HasATOMICS bool // Atomic memory operation instruction set
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HasFPHP bool // Half precision floating-point instruction set
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HasASIMDHP bool // Advanced SIMD half precision instruction set
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HasCPUID bool // CPUID identification scheme registers
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HasASIMDRDM bool // Rounding double multiply add/subtract instruction set
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HasJSCVT bool // Javascript conversion from floating-point to integer
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HasFCMA bool // Floating-point multiplication and addition of complex numbers
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HasLRCPC bool // Release Consistent processor consistent support
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HasDCPOP bool // Persistent memory support
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HasSHA3 bool // SHA3 hardware implementation
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HasSM3 bool // SM3 hardware implementation
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HasSM4 bool // SM4 hardware implementation
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HasASIMDDP bool // Advanced SIMD double precision instruction set
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HasSHA512 bool // SHA512 hardware implementation
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HasSVE bool // Scalable Vector Extensions
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HasASIMDFHM bool // Advanced SIMD multiplication FP16 to FP32
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_ CacheLinePad
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}
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// ARM contains the supported CPU features of the current ARM (32-bit) platform.
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// All feature flags are false if:
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// 1. the current platform is not arm, or
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// 2. the current operating system is not Linux.
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var ARM struct {
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_ CacheLinePad
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HasSWP bool // SWP instruction support
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HasHALF bool // Half-word load and store support
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HasTHUMB bool // ARM Thumb instruction set
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Has26BIT bool // Address space limited to 26-bits
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HasFASTMUL bool // 32-bit operand, 64-bit result multiplication support
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HasFPA bool // Floating point arithmetic support
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HasVFP bool // Vector floating point support
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HasEDSP bool // DSP Extensions support
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HasJAVA bool // Java instruction set
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HasIWMMXT bool // Intel Wireless MMX technology support
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HasCRUNCH bool // MaverickCrunch context switching and handling
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HasTHUMBEE bool // Thumb EE instruction set
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HasNEON bool // NEON instruction set
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HasVFPv3 bool // Vector floating point version 3 support
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HasVFPv3D16 bool // Vector floating point version 3 D8-D15
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HasTLS bool // Thread local storage support
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HasVFPv4 bool // Vector floating point version 4 support
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HasIDIVA bool // Integer divide instruction support in ARM mode
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HasIDIVT bool // Integer divide instruction support in Thumb mode
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HasVFPD32 bool // Vector floating point version 3 D15-D31
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HasLPAE bool // Large Physical Address Extensions
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HasEVTSTRM bool // Event stream support
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HasAES bool // AES hardware implementation
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HasPMULL bool // Polynomial multiplication instruction set
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HasSHA1 bool // SHA1 hardware implementation
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HasSHA2 bool // SHA2 hardware implementation
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HasCRC32 bool // CRC32 hardware implementation
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_ CacheLinePad
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}
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// MIPS64X contains the supported CPU features of the current mips64/mips64le
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// platforms. If the current platform is not mips64/mips64le or the current
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// operating system is not Linux then all feature flags are false.
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var MIPS64X struct {
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_ CacheLinePad
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HasMSA bool // MIPS SIMD architecture
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_ CacheLinePad
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}
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// PPC64 contains the supported CPU features of the current ppc64/ppc64le platforms.
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// If the current platform is not ppc64/ppc64le then all feature flags are false.
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//
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// For ppc64/ppc64le, it is safe to check only for ISA level starting on ISA v3.00,
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// since there are no optional categories. There are some exceptions that also
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// require kernel support to work (DARN, SCV), so there are feature bits for
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// those as well. The struct is padded to avoid false sharing.
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var PPC64 struct {
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_ CacheLinePad
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HasDARN bool // Hardware random number generator (requires kernel enablement)
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HasSCV bool // Syscall vectored (requires kernel enablement)
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IsPOWER8 bool // ISA v2.07 (POWER8)
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IsPOWER9 bool // ISA v3.00 (POWER9), implies IsPOWER8
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_ CacheLinePad
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}
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// S390X contains the supported CPU features of the current IBM Z
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// (s390x) platform. If the current platform is not IBM Z then all
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// feature flags are false.
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//
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// S390X is padded to avoid false sharing. Further HasVX is only set
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// if the OS supports vector registers in addition to the STFLE
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// feature bit being set.
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var S390X struct {
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_ CacheLinePad
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HasZARCH bool // z/Architecture mode is active [mandatory]
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HasSTFLE bool // store facility list extended
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HasLDISP bool // long (20-bit) displacements
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HasEIMM bool // 32-bit immediates
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HasDFP bool // decimal floating point
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HasETF3EH bool // ETF-3 enhanced
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HasMSA bool // message security assist (CPACF)
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HasAES bool // KM-AES{128,192,256} functions
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HasAESCBC bool // KMC-AES{128,192,256} functions
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HasAESCTR bool // KMCTR-AES{128,192,256} functions
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HasAESGCM bool // KMA-GCM-AES{128,192,256} functions
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HasGHASH bool // KIMD-GHASH function
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HasSHA1 bool // K{I,L}MD-SHA-1 functions
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HasSHA256 bool // K{I,L}MD-SHA-256 functions
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HasSHA512 bool // K{I,L}MD-SHA-512 functions
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HasSHA3 bool // K{I,L}MD-SHA3-{224,256,384,512} and K{I,L}MD-SHAKE-{128,256} functions
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HasVX bool // vector facility
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HasVXE bool // vector-enhancements facility 1
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_ CacheLinePad
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}
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func init() {
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archInit()
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initOptions()
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processOptions()
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}
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// options contains the cpu debug options that can be used in GODEBUG.
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// Options are arch dependent and are added by the arch specific initOptions functions.
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// Features that are mandatory for the specific GOARCH should have the Required field set
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// (e.g. SSE2 on amd64).
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var options []option
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// Option names should be lower case. e.g. avx instead of AVX.
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type option struct {
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Name string
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Feature *bool
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Specified bool // whether feature value was specified in GODEBUG
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Enable bool // whether feature should be enabled
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Required bool // whether feature is mandatory and can not be disabled
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}
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func processOptions() {
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env := os.Getenv("GODEBUG")
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field:
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for env != "" {
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field := ""
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i := strings.IndexByte(env, ',')
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if i < 0 {
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field, env = env, ""
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||||
} else {
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field, env = env[:i], env[i+1:]
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}
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if len(field) < 4 || field[:4] != "cpu." {
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continue
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}
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i = strings.IndexByte(field, '=')
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if i < 0 {
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print("GODEBUG sys/cpu: no value specified for \"", field, "\"\n")
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continue
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}
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key, value := field[4:i], field[i+1:] // e.g. "SSE2", "on"
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||||
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||||
var enable bool
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||||
switch value {
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||||
case "on":
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enable = true
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case "off":
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||||
enable = false
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||||
default:
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||||
print("GODEBUG sys/cpu: value \"", value, "\" not supported for cpu option \"", key, "\"\n")
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||||
continue field
|
||||
}
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||||
|
||||
if key == "all" {
|
||||
for i := range options {
|
||||
options[i].Specified = true
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||||
options[i].Enable = enable || options[i].Required
|
||||
}
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||||
continue field
|
||||
}
|
||||
|
||||
for i := range options {
|
||||
if options[i].Name == key {
|
||||
options[i].Specified = true
|
||||
options[i].Enable = enable
|
||||
continue field
|
||||
}
|
||||
}
|
||||
|
||||
print("GODEBUG sys/cpu: unknown cpu feature \"", key, "\"\n")
|
||||
}
|
||||
|
||||
for _, o := range options {
|
||||
if !o.Specified {
|
||||
continue
|
||||
}
|
||||
|
||||
if o.Enable && !*o.Feature {
|
||||
print("GODEBUG sys/cpu: can not enable \"", o.Name, "\", missing CPU support\n")
|
||||
continue
|
||||
}
|
||||
|
||||
if !o.Enable && o.Required {
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||||
print("GODEBUG sys/cpu: can not disable \"", o.Name, "\", required CPU feature\n")
|
||||
continue
|
||||
}
|
||||
|
||||
*o.Feature = o.Enable
|
||||
}
|
||||
}
|
|
@ -0,0 +1,34 @@
|
|||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build aix
|
||||
// +build aix
|
||||
|
||||
package cpu
|
||||
|
||||
const (
|
||||
// getsystemcfg constants
|
||||
_SC_IMPL = 2
|
||||
_IMPL_POWER8 = 0x10000
|
||||
_IMPL_POWER9 = 0x20000
|
||||
)
|
||||
|
||||
func archInit() {
|
||||
impl := getsystemcfg(_SC_IMPL)
|
||||
if impl&_IMPL_POWER8 != 0 {
|
||||
PPC64.IsPOWER8 = true
|
||||
}
|
||||
if impl&_IMPL_POWER9 != 0 {
|
||||
PPC64.IsPOWER8 = true
|
||||
PPC64.IsPOWER9 = true
|
||||
}
|
||||
|
||||
Initialized = true
|
||||
}
|
||||
|
||||
func getsystemcfg(label int) (n uint64) {
|
||||
r0, _ := callgetsystemcfg(label)
|
||||
n = uint64(r0)
|
||||
return
|
||||
}
|
|
@ -0,0 +1,73 @@
|
|||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package cpu
|
||||
|
||||
const cacheLineSize = 32
|
||||
|
||||
// HWCAP/HWCAP2 bits.
|
||||
// These are specific to Linux.
|
||||
const (
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||||
hwcap_SWP = 1 << 0
|
||||
hwcap_HALF = 1 << 1
|
||||
hwcap_THUMB = 1 << 2
|
||||
hwcap_26BIT = 1 << 3
|
||||
hwcap_FAST_MULT = 1 << 4
|
||||
hwcap_FPA = 1 << 5
|
||||
hwcap_VFP = 1 << 6
|
||||
hwcap_EDSP = 1 << 7
|
||||
hwcap_JAVA = 1 << 8
|
||||
hwcap_IWMMXT = 1 << 9
|
||||
hwcap_CRUNCH = 1 << 10
|
||||
hwcap_THUMBEE = 1 << 11
|
||||
hwcap_NEON = 1 << 12
|
||||
hwcap_VFPv3 = 1 << 13
|
||||
hwcap_VFPv3D16 = 1 << 14
|
||||
hwcap_TLS = 1 << 15
|
||||
hwcap_VFPv4 = 1 << 16
|
||||
hwcap_IDIVA = 1 << 17
|
||||
hwcap_IDIVT = 1 << 18
|
||||
hwcap_VFPD32 = 1 << 19
|
||||
hwcap_LPAE = 1 << 20
|
||||
hwcap_EVTSTRM = 1 << 21
|
||||
|
||||
hwcap2_AES = 1 << 0
|
||||
hwcap2_PMULL = 1 << 1
|
||||
hwcap2_SHA1 = 1 << 2
|
||||
hwcap2_SHA2 = 1 << 3
|
||||
hwcap2_CRC32 = 1 << 4
|
||||
)
|
||||
|
||||
func initOptions() {
|
||||
options = []option{
|
||||
{Name: "pmull", Feature: &ARM.HasPMULL},
|
||||
{Name: "sha1", Feature: &ARM.HasSHA1},
|
||||
{Name: "sha2", Feature: &ARM.HasSHA2},
|
||||
{Name: "swp", Feature: &ARM.HasSWP},
|
||||
{Name: "thumb", Feature: &ARM.HasTHUMB},
|
||||
{Name: "thumbee", Feature: &ARM.HasTHUMBEE},
|
||||
{Name: "tls", Feature: &ARM.HasTLS},
|
||||
{Name: "vfp", Feature: &ARM.HasVFP},
|
||||
{Name: "vfpd32", Feature: &ARM.HasVFPD32},
|
||||
{Name: "vfpv3", Feature: &ARM.HasVFPv3},
|
||||
{Name: "vfpv3d16", Feature: &ARM.HasVFPv3D16},
|
||||
{Name: "vfpv4", Feature: &ARM.HasVFPv4},
|
||||
{Name: "half", Feature: &ARM.HasHALF},
|
||||
{Name: "26bit", Feature: &ARM.Has26BIT},
|
||||
{Name: "fastmul", Feature: &ARM.HasFASTMUL},
|
||||
{Name: "fpa", Feature: &ARM.HasFPA},
|
||||
{Name: "edsp", Feature: &ARM.HasEDSP},
|
||||
{Name: "java", Feature: &ARM.HasJAVA},
|
||||
{Name: "iwmmxt", Feature: &ARM.HasIWMMXT},
|
||||
{Name: "crunch", Feature: &ARM.HasCRUNCH},
|
||||
{Name: "neon", Feature: &ARM.HasNEON},
|
||||
{Name: "idivt", Feature: &ARM.HasIDIVT},
|
||||
{Name: "idiva", Feature: &ARM.HasIDIVA},
|
||||
{Name: "lpae", Feature: &ARM.HasLPAE},
|
||||
{Name: "evtstrm", Feature: &ARM.HasEVTSTRM},
|
||||
{Name: "aes", Feature: &ARM.HasAES},
|
||||
{Name: "crc32", Feature: &ARM.HasCRC32},
|
||||
}
|
||||
|
||||
}
|
|
@ -0,0 +1,172 @@
|
|||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package cpu
|
||||
|
||||
import "runtime"
|
||||
|
||||
const cacheLineSize = 64
|
||||
|
||||
func initOptions() {
|
||||
options = []option{
|
||||
{Name: "fp", Feature: &ARM64.HasFP},
|
||||
{Name: "asimd", Feature: &ARM64.HasASIMD},
|
||||
{Name: "evstrm", Feature: &ARM64.HasEVTSTRM},
|
||||
{Name: "aes", Feature: &ARM64.HasAES},
|
||||
{Name: "fphp", Feature: &ARM64.HasFPHP},
|
||||
{Name: "jscvt", Feature: &ARM64.HasJSCVT},
|
||||
{Name: "lrcpc", Feature: &ARM64.HasLRCPC},
|
||||
{Name: "pmull", Feature: &ARM64.HasPMULL},
|
||||
{Name: "sha1", Feature: &ARM64.HasSHA1},
|
||||
{Name: "sha2", Feature: &ARM64.HasSHA2},
|
||||
{Name: "sha3", Feature: &ARM64.HasSHA3},
|
||||
{Name: "sha512", Feature: &ARM64.HasSHA512},
|
||||
{Name: "sm3", Feature: &ARM64.HasSM3},
|
||||
{Name: "sm4", Feature: &ARM64.HasSM4},
|
||||
{Name: "sve", Feature: &ARM64.HasSVE},
|
||||
{Name: "crc32", Feature: &ARM64.HasCRC32},
|
||||
{Name: "atomics", Feature: &ARM64.HasATOMICS},
|
||||
{Name: "asimdhp", Feature: &ARM64.HasASIMDHP},
|
||||
{Name: "cpuid", Feature: &ARM64.HasCPUID},
|
||||
{Name: "asimrdm", Feature: &ARM64.HasASIMDRDM},
|
||||
{Name: "fcma", Feature: &ARM64.HasFCMA},
|
||||
{Name: "dcpop", Feature: &ARM64.HasDCPOP},
|
||||
{Name: "asimddp", Feature: &ARM64.HasASIMDDP},
|
||||
{Name: "asimdfhm", Feature: &ARM64.HasASIMDFHM},
|
||||
}
|
||||
}
|
||||
|
||||
func archInit() {
|
||||
switch runtime.GOOS {
|
||||
case "freebsd":
|
||||
readARM64Registers()
|
||||
case "linux", "netbsd":
|
||||
doinit()
|
||||
default:
|
||||
// Most platforms don't seem to allow reading these registers.
|
||||
//
|
||||
// OpenBSD:
|
||||
// See https://golang.org/issue/31746
|
||||
setMinimalFeatures()
|
||||
}
|
||||
}
|
||||
|
||||
// setMinimalFeatures fakes the minimal ARM64 features expected by
|
||||
// TestARM64minimalFeatures.
|
||||
func setMinimalFeatures() {
|
||||
ARM64.HasASIMD = true
|
||||
ARM64.HasFP = true
|
||||
}
|
||||
|
||||
func readARM64Registers() {
|
||||
Initialized = true
|
||||
|
||||
parseARM64SystemRegisters(getisar0(), getisar1(), getpfr0())
|
||||
}
|
||||
|
||||
func parseARM64SystemRegisters(isar0, isar1, pfr0 uint64) {
|
||||
// ID_AA64ISAR0_EL1
|
||||
switch extractBits(isar0, 4, 7) {
|
||||
case 1:
|
||||
ARM64.HasAES = true
|
||||
case 2:
|
||||
ARM64.HasAES = true
|
||||
ARM64.HasPMULL = true
|
||||
}
|
||||
|
||||
switch extractBits(isar0, 8, 11) {
|
||||
case 1:
|
||||
ARM64.HasSHA1 = true
|
||||
}
|
||||
|
||||
switch extractBits(isar0, 12, 15) {
|
||||
case 1:
|
||||
ARM64.HasSHA2 = true
|
||||
case 2:
|
||||
ARM64.HasSHA2 = true
|
||||
ARM64.HasSHA512 = true
|
||||
}
|
||||
|
||||
switch extractBits(isar0, 16, 19) {
|
||||
case 1:
|
||||
ARM64.HasCRC32 = true
|
||||
}
|
||||
|
||||
switch extractBits(isar0, 20, 23) {
|
||||
case 2:
|
||||
ARM64.HasATOMICS = true
|
||||
}
|
||||
|
||||
switch extractBits(isar0, 28, 31) {
|
||||
case 1:
|
||||
ARM64.HasASIMDRDM = true
|
||||
}
|
||||
|
||||
switch extractBits(isar0, 32, 35) {
|
||||
case 1:
|
||||
ARM64.HasSHA3 = true
|
||||
}
|
||||
|
||||
switch extractBits(isar0, 36, 39) {
|
||||
case 1:
|
||||
ARM64.HasSM3 = true
|
||||
}
|
||||
|
||||
switch extractBits(isar0, 40, 43) {
|
||||
case 1:
|
||||
ARM64.HasSM4 = true
|
||||
}
|
||||
|
||||
switch extractBits(isar0, 44, 47) {
|
||||
case 1:
|
||||
ARM64.HasASIMDDP = true
|
||||
}
|
||||
|
||||
// ID_AA64ISAR1_EL1
|
||||
switch extractBits(isar1, 0, 3) {
|
||||
case 1:
|
||||
ARM64.HasDCPOP = true
|
||||
}
|
||||
|
||||
switch extractBits(isar1, 12, 15) {
|
||||
case 1:
|
||||
ARM64.HasJSCVT = true
|
||||
}
|
||||
|
||||
switch extractBits(isar1, 16, 19) {
|
||||
case 1:
|
||||
ARM64.HasFCMA = true
|
||||
}
|
||||
|
||||
switch extractBits(isar1, 20, 23) {
|
||||
case 1:
|
||||
ARM64.HasLRCPC = true
|
||||
}
|
||||
|
||||
// ID_AA64PFR0_EL1
|
||||
switch extractBits(pfr0, 16, 19) {
|
||||
case 0:
|
||||
ARM64.HasFP = true
|
||||
case 1:
|
||||
ARM64.HasFP = true
|
||||
ARM64.HasFPHP = true
|
||||
}
|
||||
|
||||
switch extractBits(pfr0, 20, 23) {
|
||||
case 0:
|
||||
ARM64.HasASIMD = true
|
||||
case 1:
|
||||
ARM64.HasASIMD = true
|
||||
ARM64.HasASIMDHP = true
|
||||
}
|
||||
|
||||
switch extractBits(pfr0, 32, 35) {
|
||||
case 1:
|
||||
ARM64.HasSVE = true
|
||||
}
|
||||
}
|
||||
|
||||
func extractBits(data uint64, start, end uint) uint {
|
||||
return (uint)(data>>start) & ((1 << (end - start + 1)) - 1)
|
||||
}
|
|
@ -0,0 +1,32 @@
|
|||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build gc
|
||||
// +build gc
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
// func getisar0() uint64
|
||||
TEXT ·getisar0(SB),NOSPLIT,$0-8
|
||||
// get Instruction Set Attributes 0 into x0
|
||||
// mrs x0, ID_AA64ISAR0_EL1 = d5380600
|
||||
WORD $0xd5380600
|
||||
MOVD R0, ret+0(FP)
|
||||
RET
|
||||
|
||||
// func getisar1() uint64
|
||||
TEXT ·getisar1(SB),NOSPLIT,$0-8
|
||||
// get Instruction Set Attributes 1 into x0
|
||||
// mrs x0, ID_AA64ISAR1_EL1 = d5380620
|
||||
WORD $0xd5380620
|
||||
MOVD R0, ret+0(FP)
|
||||
RET
|
||||
|
||||
// func getpfr0() uint64
|
||||
TEXT ·getpfr0(SB),NOSPLIT,$0-8
|
||||
// get Processor Feature Register 0 into x0
|
||||
// mrs x0, ID_AA64PFR0_EL1 = d5380400
|
||||
WORD $0xd5380400
|
||||
MOVD R0, ret+0(FP)
|
||||
RET
|
|
@ -0,0 +1,12 @@
|
|||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build gc
|
||||
// +build gc
|
||||
|
||||
package cpu
|
||||
|
||||
func getisar0() uint64
|
||||
func getisar1() uint64
|
||||
func getpfr0() uint64
|
|
@ -0,0 +1,22 @@
|
|||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build gc
|
||||
// +build gc
|
||||
|
||||
package cpu
|
||||
|
||||
// haveAsmFunctions reports whether the other functions in this file can
|
||||
// be safely called.
|
||||
func haveAsmFunctions() bool { return true }
|
||||
|
||||
// The following feature detection functions are defined in cpu_s390x.s.
|
||||
// They are likely to be expensive to call so the results should be cached.
|
||||
func stfle() facilityList
|
||||
func kmQuery() queryResult
|
||||
func kmcQuery() queryResult
|
||||
func kmctrQuery() queryResult
|
||||
func kmaQuery() queryResult
|
||||
func kimdQuery() queryResult
|
||||
func klmdQuery() queryResult
|
|
@ -0,0 +1,21 @@
|
|||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build (386 || amd64 || amd64p32) && gc
|
||||
// +build 386 amd64 amd64p32
|
||||
// +build gc
|
||||
|
||||
package cpu
|
||||
|
||||
// cpuid is implemented in cpu_x86.s for gc compiler
|
||||
// and in cpu_gccgo.c for gccgo.
|
||||
func cpuid(eaxArg, ecxArg uint32) (eax, ebx, ecx, edx uint32)
|
||||
|
||||
// xgetbv with ecx = 0 is implemented in cpu_x86.s for gc compiler
|
||||
// and in cpu_gccgo.c for gccgo.
|
||||
func xgetbv() (eax, edx uint32)
|
||||
|
||||
// darwinSupportsAVX512 is implemented in cpu_x86.s for gc compiler
|
||||
// and in cpu_gccgo_x86.go for gccgo.
|
||||
func darwinSupportsAVX512() bool
|
|
@ -0,0 +1,12 @@
|
|||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build gccgo
|
||||
// +build gccgo
|
||||
|
||||
package cpu
|
||||
|
||||
func getisar0() uint64 { return 0 }
|
||||
func getisar1() uint64 { return 0 }
|
||||
func getpfr0() uint64 { return 0 }
|
|
@ -0,0 +1,23 @@
|
|||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build gccgo
|
||||
// +build gccgo
|
||||
|
||||
package cpu
|
||||
|
||||
// haveAsmFunctions reports whether the other functions in this file can
|
||||
// be safely called.
|
||||
func haveAsmFunctions() bool { return false }
|
||||
|
||||
// TODO(mundaym): the following feature detection functions are currently
|
||||
// stubs. See https://golang.org/cl/162887 for how to fix this.
|
||||
// They are likely to be expensive to call so the results should be cached.
|
||||
func stfle() facilityList { panic("not implemented for gccgo") }
|
||||
func kmQuery() queryResult { panic("not implemented for gccgo") }
|
||||
func kmcQuery() queryResult { panic("not implemented for gccgo") }
|
||||
func kmctrQuery() queryResult { panic("not implemented for gccgo") }
|
||||
func kmaQuery() queryResult { panic("not implemented for gccgo") }
|
||||
func kimdQuery() queryResult { panic("not implemented for gccgo") }
|
||||
func klmdQuery() queryResult { panic("not implemented for gccgo") }
|
|
@ -0,0 +1,43 @@
|
|||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build 386 amd64 amd64p32
|
||||
// +build gccgo
|
||||
|
||||
#include <cpuid.h>
|
||||
#include <stdint.h>
|
||||
|
||||
// Need to wrap __get_cpuid_count because it's declared as static.
|
||||
int
|
||||
gccgoGetCpuidCount(uint32_t leaf, uint32_t subleaf,
|
||||
uint32_t *eax, uint32_t *ebx,
|
||||
uint32_t *ecx, uint32_t *edx)
|
||||
{
|
||||
return __get_cpuid_count(leaf, subleaf, eax, ebx, ecx, edx);
|
||||
}
|
||||
|
||||
// xgetbv reads the contents of an XCR (Extended Control Register)
|
||||
// specified in the ECX register into registers EDX:EAX.
|
||||
// Currently, the only supported value for XCR is 0.
|
||||
//
|
||||
// TODO: Replace with a better alternative:
|
||||
//
|
||||
// #include <xsaveintrin.h>
|
||||
//
|
||||
// #pragma GCC target("xsave")
|
||||
//
|
||||
// void gccgoXgetbv(uint32_t *eax, uint32_t *edx) {
|
||||
// unsigned long long x = _xgetbv(0);
|
||||
// *eax = x & 0xffffffff;
|
||||
// *edx = (x >> 32) & 0xffffffff;
|
||||
// }
|
||||
//
|
||||
// Note that _xgetbv is defined starting with GCC 8.
|
||||
void
|
||||
gccgoXgetbv(uint32_t *eax, uint32_t *edx)
|
||||
{
|
||||
__asm(" xorl %%ecx, %%ecx\n"
|
||||
" xgetbv"
|
||||
: "=a"(*eax), "=d"(*edx));
|
||||
}
|
|
@ -0,0 +1,33 @@
|
|||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build (386 || amd64 || amd64p32) && gccgo
|
||||
// +build 386 amd64 amd64p32
|
||||
// +build gccgo
|
||||
|
||||
package cpu
|
||||
|
||||
//extern gccgoGetCpuidCount
|
||||
func gccgoGetCpuidCount(eaxArg, ecxArg uint32, eax, ebx, ecx, edx *uint32)
|
||||
|
||||
func cpuid(eaxArg, ecxArg uint32) (eax, ebx, ecx, edx uint32) {
|
||||
var a, b, c, d uint32
|
||||
gccgoGetCpuidCount(eaxArg, ecxArg, &a, &b, &c, &d)
|
||||
return a, b, c, d
|
||||
}
|
||||
|
||||
//extern gccgoXgetbv
|
||||
func gccgoXgetbv(eax, edx *uint32)
|
||||
|
||||
func xgetbv() (eax, edx uint32) {
|
||||
var a, d uint32
|
||||
gccgoXgetbv(&a, &d)
|
||||
return a, d
|
||||
}
|
||||
|
||||
// gccgo doesn't build on Darwin, per:
|
||||
// https://github.com/Homebrew/homebrew-core/blob/HEAD/Formula/gcc.rb#L76
|
||||
func darwinSupportsAVX512() bool {
|
||||
return false
|
||||
}
|
|
@ -0,0 +1,16 @@
|
|||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build !386 && !amd64 && !amd64p32 && !arm64
|
||||
// +build !386,!amd64,!amd64p32,!arm64
|
||||
|
||||
package cpu
|
||||
|
||||
func archInit() {
|
||||
if err := readHWCAP(); err != nil {
|
||||
return
|
||||
}
|
||||
doinit()
|
||||
Initialized = true
|
||||
}
|
|
@ -0,0 +1,39 @@
|
|||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package cpu
|
||||
|
||||
func doinit() {
|
||||
ARM.HasSWP = isSet(hwCap, hwcap_SWP)
|
||||
ARM.HasHALF = isSet(hwCap, hwcap_HALF)
|
||||
ARM.HasTHUMB = isSet(hwCap, hwcap_THUMB)
|
||||
ARM.Has26BIT = isSet(hwCap, hwcap_26BIT)
|
||||
ARM.HasFASTMUL = isSet(hwCap, hwcap_FAST_MULT)
|
||||
ARM.HasFPA = isSet(hwCap, hwcap_FPA)
|
||||
ARM.HasVFP = isSet(hwCap, hwcap_VFP)
|
||||
ARM.HasEDSP = isSet(hwCap, hwcap_EDSP)
|
||||
ARM.HasJAVA = isSet(hwCap, hwcap_JAVA)
|
||||
ARM.HasIWMMXT = isSet(hwCap, hwcap_IWMMXT)
|
||||
ARM.HasCRUNCH = isSet(hwCap, hwcap_CRUNCH)
|
||||
ARM.HasTHUMBEE = isSet(hwCap, hwcap_THUMBEE)
|
||||
ARM.HasNEON = isSet(hwCap, hwcap_NEON)
|
||||
ARM.HasVFPv3 = isSet(hwCap, hwcap_VFPv3)
|
||||
ARM.HasVFPv3D16 = isSet(hwCap, hwcap_VFPv3D16)
|
||||
ARM.HasTLS = isSet(hwCap, hwcap_TLS)
|
||||
ARM.HasVFPv4 = isSet(hwCap, hwcap_VFPv4)
|
||||
ARM.HasIDIVA = isSet(hwCap, hwcap_IDIVA)
|
||||
ARM.HasIDIVT = isSet(hwCap, hwcap_IDIVT)
|
||||
ARM.HasVFPD32 = isSet(hwCap, hwcap_VFPD32)
|
||||
ARM.HasLPAE = isSet(hwCap, hwcap_LPAE)
|
||||
ARM.HasEVTSTRM = isSet(hwCap, hwcap_EVTSTRM)
|
||||
ARM.HasAES = isSet(hwCap2, hwcap2_AES)
|
||||
ARM.HasPMULL = isSet(hwCap2, hwcap2_PMULL)
|
||||
ARM.HasSHA1 = isSet(hwCap2, hwcap2_SHA1)
|
||||
ARM.HasSHA2 = isSet(hwCap2, hwcap2_SHA2)
|
||||
ARM.HasCRC32 = isSet(hwCap2, hwcap2_CRC32)
|
||||
}
|
||||
|
||||
func isSet(hwc uint, value uint) bool {
|
||||
return hwc&value != 0
|
||||
}
|
|
@ -0,0 +1,71 @@
|
|||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package cpu
|
||||
|
||||
// HWCAP/HWCAP2 bits. These are exposed by Linux.
|
||||
const (
|
||||
hwcap_FP = 1 << 0
|
||||
hwcap_ASIMD = 1 << 1
|
||||
hwcap_EVTSTRM = 1 << 2
|
||||
hwcap_AES = 1 << 3
|
||||
hwcap_PMULL = 1 << 4
|
||||
hwcap_SHA1 = 1 << 5
|
||||
hwcap_SHA2 = 1 << 6
|
||||
hwcap_CRC32 = 1 << 7
|
||||
hwcap_ATOMICS = 1 << 8
|
||||
hwcap_FPHP = 1 << 9
|
||||
hwcap_ASIMDHP = 1 << 10
|
||||
hwcap_CPUID = 1 << 11
|
||||
hwcap_ASIMDRDM = 1 << 12
|
||||
hwcap_JSCVT = 1 << 13
|
||||
hwcap_FCMA = 1 << 14
|
||||
hwcap_LRCPC = 1 << 15
|
||||
hwcap_DCPOP = 1 << 16
|
||||
hwcap_SHA3 = 1 << 17
|
||||
hwcap_SM3 = 1 << 18
|
||||
hwcap_SM4 = 1 << 19
|
||||
hwcap_ASIMDDP = 1 << 20
|
||||
hwcap_SHA512 = 1 << 21
|
||||
hwcap_SVE = 1 << 22
|
||||
hwcap_ASIMDFHM = 1 << 23
|
||||
)
|
||||
|
||||
func doinit() {
|
||||
if err := readHWCAP(); err != nil {
|
||||
// failed to read /proc/self/auxv, try reading registers directly
|
||||
readARM64Registers()
|
||||
return
|
||||
}
|
||||
|
||||
// HWCAP feature bits
|
||||
ARM64.HasFP = isSet(hwCap, hwcap_FP)
|
||||
ARM64.HasASIMD = isSet(hwCap, hwcap_ASIMD)
|
||||
ARM64.HasEVTSTRM = isSet(hwCap, hwcap_EVTSTRM)
|
||||
ARM64.HasAES = isSet(hwCap, hwcap_AES)
|
||||
ARM64.HasPMULL = isSet(hwCap, hwcap_PMULL)
|
||||
ARM64.HasSHA1 = isSet(hwCap, hwcap_SHA1)
|
||||
ARM64.HasSHA2 = isSet(hwCap, hwcap_SHA2)
|
||||
ARM64.HasCRC32 = isSet(hwCap, hwcap_CRC32)
|
||||
ARM64.HasATOMICS = isSet(hwCap, hwcap_ATOMICS)
|
||||
ARM64.HasFPHP = isSet(hwCap, hwcap_FPHP)
|
||||
ARM64.HasASIMDHP = isSet(hwCap, hwcap_ASIMDHP)
|
||||
ARM64.HasCPUID = isSet(hwCap, hwcap_CPUID)
|
||||
ARM64.HasASIMDRDM = isSet(hwCap, hwcap_ASIMDRDM)
|
||||
ARM64.HasJSCVT = isSet(hwCap, hwcap_JSCVT)
|
||||
ARM64.HasFCMA = isSet(hwCap, hwcap_FCMA)
|
||||
ARM64.HasLRCPC = isSet(hwCap, hwcap_LRCPC)
|
||||
ARM64.HasDCPOP = isSet(hwCap, hwcap_DCPOP)
|
||||
ARM64.HasSHA3 = isSet(hwCap, hwcap_SHA3)
|
||||
ARM64.HasSM3 = isSet(hwCap, hwcap_SM3)
|
||||
ARM64.HasSM4 = isSet(hwCap, hwcap_SM4)
|
||||
ARM64.HasASIMDDP = isSet(hwCap, hwcap_ASIMDDP)
|
||||
ARM64.HasSHA512 = isSet(hwCap, hwcap_SHA512)
|
||||
ARM64.HasSVE = isSet(hwCap, hwcap_SVE)
|
||||
ARM64.HasASIMDFHM = isSet(hwCap, hwcap_ASIMDFHM)
|
||||
}
|
||||
|
||||
func isSet(hwc uint, value uint) bool {
|
||||
return hwc&value != 0
|
||||
}
|
|
@ -0,0 +1,24 @@
|
|||
// Copyright 2020 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build linux && (mips64 || mips64le)
|
||||
// +build linux
|
||||
// +build mips64 mips64le
|
||||
|
||||
package cpu
|
||||
|
||||
// HWCAP bits. These are exposed by the Linux kernel 5.4.
|
||||
const (
|
||||
// CPU features
|
||||
hwcap_MIPS_MSA = 1 << 1
|
||||
)
|
||||
|
||||
func doinit() {
|
||||
// HWCAP feature bits
|
||||
MIPS64X.HasMSA = isSet(hwCap, hwcap_MIPS_MSA)
|
||||
}
|
||||
|
||||
func isSet(hwc uint, value uint) bool {
|
||||
return hwc&value != 0
|
||||
}
|
|
@ -0,0 +1,10 @@
|
|||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build linux && !arm && !arm64 && !mips64 && !mips64le && !ppc64 && !ppc64le && !s390x
|
||||
// +build linux,!arm,!arm64,!mips64,!mips64le,!ppc64,!ppc64le,!s390x
|
||||
|
||||
package cpu
|
||||
|
||||
func doinit() {}
|
|
@ -0,0 +1,32 @@
|
|||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build linux && (ppc64 || ppc64le)
|
||||
// +build linux
|
||||
// +build ppc64 ppc64le
|
||||
|
||||
package cpu
|
||||
|
||||
// HWCAP/HWCAP2 bits. These are exposed by the kernel.
|
||||
const (
|
||||
// ISA Level
|
||||
_PPC_FEATURE2_ARCH_2_07 = 0x80000000
|
||||
_PPC_FEATURE2_ARCH_3_00 = 0x00800000
|
||||
|
||||
// CPU features
|
||||
_PPC_FEATURE2_DARN = 0x00200000
|
||||
_PPC_FEATURE2_SCV = 0x00100000
|
||||
)
|
||||
|
||||
func doinit() {
|
||||
// HWCAP2 feature bits
|
||||
PPC64.IsPOWER8 = isSet(hwCap2, _PPC_FEATURE2_ARCH_2_07)
|
||||
PPC64.IsPOWER9 = isSet(hwCap2, _PPC_FEATURE2_ARCH_3_00)
|
||||
PPC64.HasDARN = isSet(hwCap2, _PPC_FEATURE2_DARN)
|
||||
PPC64.HasSCV = isSet(hwCap2, _PPC_FEATURE2_SCV)
|
||||
}
|
||||
|
||||
func isSet(hwc uint, value uint) bool {
|
||||
return hwc&value != 0
|
||||
}
|
|
@ -0,0 +1,40 @@
|
|||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package cpu
|
||||
|
||||
const (
|
||||
// bit mask values from /usr/include/bits/hwcap.h
|
||||
hwcap_ZARCH = 2
|
||||
hwcap_STFLE = 4
|
||||
hwcap_MSA = 8
|
||||
hwcap_LDISP = 16
|
||||
hwcap_EIMM = 32
|
||||
hwcap_DFP = 64
|
||||
hwcap_ETF3EH = 256
|
||||
hwcap_VX = 2048
|
||||
hwcap_VXE = 8192
|
||||
)
|
||||
|
||||
func initS390Xbase() {
|
||||
// test HWCAP bit vector
|
||||
has := func(featureMask uint) bool {
|
||||
return hwCap&featureMask == featureMask
|
||||
}
|
||||
|
||||
// mandatory
|
||||
S390X.HasZARCH = has(hwcap_ZARCH)
|
||||
|
||||
// optional
|
||||
S390X.HasSTFLE = has(hwcap_STFLE)
|
||||
S390X.HasLDISP = has(hwcap_LDISP)
|
||||
S390X.HasEIMM = has(hwcap_EIMM)
|
||||
S390X.HasETF3EH = has(hwcap_ETF3EH)
|
||||
S390X.HasDFP = has(hwcap_DFP)
|
||||
S390X.HasMSA = has(hwcap_MSA)
|
||||
S390X.HasVX = has(hwcap_VX)
|
||||
if S390X.HasVX {
|
||||
S390X.HasVXE = has(hwcap_VXE)
|
||||
}
|
||||
}
|
|
@ -0,0 +1,16 @@
|
|||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build mips64 || mips64le
|
||||
// +build mips64 mips64le
|
||||
|
||||
package cpu
|
||||
|
||||
const cacheLineSize = 32
|
||||
|
||||
func initOptions() {
|
||||
options = []option{
|
||||
{Name: "msa", Feature: &MIPS64X.HasMSA},
|
||||
}
|
||||
}
|
|
@ -0,0 +1,12 @@
|
|||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build mips || mipsle
|
||||
// +build mips mipsle
|
||||
|
||||
package cpu
|
||||
|
||||
const cacheLineSize = 32
|
||||
|
||||
func initOptions() {}
|
|
@ -0,0 +1,173 @@
|
|||
// Copyright 2020 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package cpu
|
||||
|
||||
import (
|
||||
"syscall"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
// Minimal copy of functionality from x/sys/unix so the cpu package can call
|
||||
// sysctl without depending on x/sys/unix.
|
||||
|
||||
const (
|
||||
_CTL_QUERY = -2
|
||||
|
||||
_SYSCTL_VERS_1 = 0x1000000
|
||||
)
|
||||
|
||||
var _zero uintptr
|
||||
|
||||
func sysctl(mib []int32, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(mib) > 0 {
|
||||
_p0 = unsafe.Pointer(&mib[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
_, _, errno := syscall.Syscall6(
|
||||
syscall.SYS___SYSCTL,
|
||||
uintptr(_p0),
|
||||
uintptr(len(mib)),
|
||||
uintptr(unsafe.Pointer(old)),
|
||||
uintptr(unsafe.Pointer(oldlen)),
|
||||
uintptr(unsafe.Pointer(new)),
|
||||
uintptr(newlen))
|
||||
if errno != 0 {
|
||||
return errno
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
type sysctlNode struct {
|
||||
Flags uint32
|
||||
Num int32
|
||||
Name [32]int8
|
||||
Ver uint32
|
||||
__rsvd uint32
|
||||
Un [16]byte
|
||||
_sysctl_size [8]byte
|
||||
_sysctl_func [8]byte
|
||||
_sysctl_parent [8]byte
|
||||
_sysctl_desc [8]byte
|
||||
}
|
||||
|
||||
func sysctlNodes(mib []int32) ([]sysctlNode, error) {
|
||||
var olen uintptr
|
||||
|
||||
// Get a list of all sysctl nodes below the given MIB by performing
|
||||
// a sysctl for the given MIB with CTL_QUERY appended.
|
||||
mib = append(mib, _CTL_QUERY)
|
||||
qnode := sysctlNode{Flags: _SYSCTL_VERS_1}
|
||||
qp := (*byte)(unsafe.Pointer(&qnode))
|
||||
sz := unsafe.Sizeof(qnode)
|
||||
if err := sysctl(mib, nil, &olen, qp, sz); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
// Now that we know the size, get the actual nodes.
|
||||
nodes := make([]sysctlNode, olen/sz)
|
||||
np := (*byte)(unsafe.Pointer(&nodes[0]))
|
||||
if err := sysctl(mib, np, &olen, qp, sz); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return nodes, nil
|
||||
}
|
||||
|
||||
func nametomib(name string) ([]int32, error) {
|
||||
// Split name into components.
|
||||
var parts []string
|
||||
last := 0
|
||||
for i := 0; i < len(name); i++ {
|
||||
if name[i] == '.' {
|
||||
parts = append(parts, name[last:i])
|
||||
last = i + 1
|
||||
}
|
||||
}
|
||||
parts = append(parts, name[last:])
|
||||
|
||||
mib := []int32{}
|
||||
// Discover the nodes and construct the MIB OID.
|
||||
for partno, part := range parts {
|
||||
nodes, err := sysctlNodes(mib)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
for _, node := range nodes {
|
||||
n := make([]byte, 0)
|
||||
for i := range node.Name {
|
||||
if node.Name[i] != 0 {
|
||||
n = append(n, byte(node.Name[i]))
|
||||
}
|
||||
}
|
||||
if string(n) == part {
|
||||
mib = append(mib, int32(node.Num))
|
||||
break
|
||||
}
|
||||
}
|
||||
if len(mib) != partno+1 {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
|
||||
return mib, nil
|
||||
}
|
||||
|
||||
// aarch64SysctlCPUID is struct aarch64_sysctl_cpu_id from NetBSD's <aarch64/armreg.h>
|
||||
type aarch64SysctlCPUID struct {
|
||||
midr uint64 /* Main ID Register */
|
||||
revidr uint64 /* Revision ID Register */
|
||||
mpidr uint64 /* Multiprocessor Affinity Register */
|
||||
aa64dfr0 uint64 /* A64 Debug Feature Register 0 */
|
||||
aa64dfr1 uint64 /* A64 Debug Feature Register 1 */
|
||||
aa64isar0 uint64 /* A64 Instruction Set Attribute Register 0 */
|
||||
aa64isar1 uint64 /* A64 Instruction Set Attribute Register 1 */
|
||||
aa64mmfr0 uint64 /* A64 Memory Model Feature Register 0 */
|
||||
aa64mmfr1 uint64 /* A64 Memory Model Feature Register 1 */
|
||||
aa64mmfr2 uint64 /* A64 Memory Model Feature Register 2 */
|
||||
aa64pfr0 uint64 /* A64 Processor Feature Register 0 */
|
||||
aa64pfr1 uint64 /* A64 Processor Feature Register 1 */
|
||||
aa64zfr0 uint64 /* A64 SVE Feature ID Register 0 */
|
||||
mvfr0 uint32 /* Media and VFP Feature Register 0 */
|
||||
mvfr1 uint32 /* Media and VFP Feature Register 1 */
|
||||
mvfr2 uint32 /* Media and VFP Feature Register 2 */
|
||||
pad uint32
|
||||
clidr uint64 /* Cache Level ID Register */
|
||||
ctr uint64 /* Cache Type Register */
|
||||
}
|
||||
|
||||
func sysctlCPUID(name string) (*aarch64SysctlCPUID, error) {
|
||||
mib, err := nametomib(name)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
out := aarch64SysctlCPUID{}
|
||||
n := unsafe.Sizeof(out)
|
||||
_, _, errno := syscall.Syscall6(
|
||||
syscall.SYS___SYSCTL,
|
||||
uintptr(unsafe.Pointer(&mib[0])),
|
||||
uintptr(len(mib)),
|
||||
uintptr(unsafe.Pointer(&out)),
|
||||
uintptr(unsafe.Pointer(&n)),
|
||||
uintptr(0),
|
||||
uintptr(0))
|
||||
if errno != 0 {
|
||||
return nil, errno
|
||||
}
|
||||
return &out, nil
|
||||
}
|
||||
|
||||
func doinit() {
|
||||
cpuid, err := sysctlCPUID("machdep.cpu0.cpu_id")
|
||||
if err != nil {
|
||||
setMinimalFeatures()
|
||||
return
|
||||
}
|
||||
parseARM64SystemRegisters(cpuid.aa64isar0, cpuid.aa64isar1, cpuid.aa64pfr0)
|
||||
|
||||
Initialized = true
|
||||
}
|
|
@ -0,0 +1,10 @@
|
|||
// Copyright 2020 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build !linux && arm
|
||||
// +build !linux,arm
|
||||
|
||||
package cpu
|
||||
|
||||
func archInit() {}
|
|
@ -0,0 +1,10 @@
|
|||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build !linux && !netbsd && arm64
|
||||
// +build !linux,!netbsd,arm64
|
||||
|
||||
package cpu
|
||||
|
||||
func doinit() {}
|
|
@ -0,0 +1,13 @@
|
|||
// Copyright 2020 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build !linux && (mips64 || mips64le)
|
||||
// +build !linux
|
||||
// +build mips64 mips64le
|
||||
|
||||
package cpu
|
||||
|
||||
func archInit() {
|
||||
Initialized = true
|
||||
}
|
|
@ -0,0 +1,17 @@
|
|||
// Copyright 2020 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build ppc64 || ppc64le
|
||||
// +build ppc64 ppc64le
|
||||
|
||||
package cpu
|
||||
|
||||
const cacheLineSize = 128
|
||||
|
||||
func initOptions() {
|
||||
options = []option{
|
||||
{Name: "darn", Feature: &PPC64.HasDARN},
|
||||
{Name: "scv", Feature: &PPC64.HasSCV},
|
||||
}
|
||||
}
|
|
@ -0,0 +1,12 @@
|
|||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build riscv64
|
||||
// +build riscv64
|
||||
|
||||
package cpu
|
||||
|
||||
const cacheLineSize = 32
|
||||
|
||||
func initOptions() {}
|
|
@ -0,0 +1,172 @@
|
|||
// Copyright 2020 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package cpu
|
||||
|
||||
const cacheLineSize = 256
|
||||
|
||||
func initOptions() {
|
||||
options = []option{
|
||||
{Name: "zarch", Feature: &S390X.HasZARCH, Required: true},
|
||||
{Name: "stfle", Feature: &S390X.HasSTFLE, Required: true},
|
||||
{Name: "ldisp", Feature: &S390X.HasLDISP, Required: true},
|
||||
{Name: "eimm", Feature: &S390X.HasEIMM, Required: true},
|
||||
{Name: "dfp", Feature: &S390X.HasDFP},
|
||||
{Name: "etf3eh", Feature: &S390X.HasETF3EH},
|
||||
{Name: "msa", Feature: &S390X.HasMSA},
|
||||
{Name: "aes", Feature: &S390X.HasAES},
|
||||
{Name: "aescbc", Feature: &S390X.HasAESCBC},
|
||||
{Name: "aesctr", Feature: &S390X.HasAESCTR},
|
||||
{Name: "aesgcm", Feature: &S390X.HasAESGCM},
|
||||
{Name: "ghash", Feature: &S390X.HasGHASH},
|
||||
{Name: "sha1", Feature: &S390X.HasSHA1},
|
||||
{Name: "sha256", Feature: &S390X.HasSHA256},
|
||||
{Name: "sha3", Feature: &S390X.HasSHA3},
|
||||
{Name: "sha512", Feature: &S390X.HasSHA512},
|
||||
{Name: "vx", Feature: &S390X.HasVX},
|
||||
{Name: "vxe", Feature: &S390X.HasVXE},
|
||||
}
|
||||
}
|
||||
|
||||
// bitIsSet reports whether the bit at index is set. The bit index
|
||||
// is in big endian order, so bit index 0 is the leftmost bit.
|
||||
func bitIsSet(bits []uint64, index uint) bool {
|
||||
return bits[index/64]&((1<<63)>>(index%64)) != 0
|
||||
}
|
||||
|
||||
// facility is a bit index for the named facility.
|
||||
type facility uint8
|
||||
|
||||
const (
|
||||
// mandatory facilities
|
||||
zarch facility = 1 // z architecture mode is active
|
||||
stflef facility = 7 // store-facility-list-extended
|
||||
ldisp facility = 18 // long-displacement
|
||||
eimm facility = 21 // extended-immediate
|
||||
|
||||
// miscellaneous facilities
|
||||
dfp facility = 42 // decimal-floating-point
|
||||
etf3eh facility = 30 // extended-translation 3 enhancement
|
||||
|
||||
// cryptography facilities
|
||||
msa facility = 17 // message-security-assist
|
||||
msa3 facility = 76 // message-security-assist extension 3
|
||||
msa4 facility = 77 // message-security-assist extension 4
|
||||
msa5 facility = 57 // message-security-assist extension 5
|
||||
msa8 facility = 146 // message-security-assist extension 8
|
||||
msa9 facility = 155 // message-security-assist extension 9
|
||||
|
||||
// vector facilities
|
||||
vx facility = 129 // vector facility
|
||||
vxe facility = 135 // vector-enhancements 1
|
||||
vxe2 facility = 148 // vector-enhancements 2
|
||||
)
|
||||
|
||||
// facilityList contains the result of an STFLE call.
|
||||
// Bits are numbered in big endian order so the
|
||||
// leftmost bit (the MSB) is at index 0.
|
||||
type facilityList struct {
|
||||
bits [4]uint64
|
||||
}
|
||||
|
||||
// Has reports whether the given facilities are present.
|
||||
func (s *facilityList) Has(fs ...facility) bool {
|
||||
if len(fs) == 0 {
|
||||
panic("no facility bits provided")
|
||||
}
|
||||
for _, f := range fs {
|
||||
if !bitIsSet(s.bits[:], uint(f)) {
|
||||
return false
|
||||
}
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
// function is the code for the named cryptographic function.
|
||||
type function uint8
|
||||
|
||||
const (
|
||||
// KM{,A,C,CTR} function codes
|
||||
aes128 function = 18 // AES-128
|
||||
aes192 function = 19 // AES-192
|
||||
aes256 function = 20 // AES-256
|
||||
|
||||
// K{I,L}MD function codes
|
||||
sha1 function = 1 // SHA-1
|
||||
sha256 function = 2 // SHA-256
|
||||
sha512 function = 3 // SHA-512
|
||||
sha3_224 function = 32 // SHA3-224
|
||||
sha3_256 function = 33 // SHA3-256
|
||||
sha3_384 function = 34 // SHA3-384
|
||||
sha3_512 function = 35 // SHA3-512
|
||||
shake128 function = 36 // SHAKE-128
|
||||
shake256 function = 37 // SHAKE-256
|
||||
|
||||
// KLMD function codes
|
||||
ghash function = 65 // GHASH
|
||||
)
|
||||
|
||||
// queryResult contains the result of a Query function
|
||||
// call. Bits are numbered in big endian order so the
|
||||
// leftmost bit (the MSB) is at index 0.
|
||||
type queryResult struct {
|
||||
bits [2]uint64
|
||||
}
|
||||
|
||||
// Has reports whether the given functions are present.
|
||||
func (q *queryResult) Has(fns ...function) bool {
|
||||
if len(fns) == 0 {
|
||||
panic("no function codes provided")
|
||||
}
|
||||
for _, f := range fns {
|
||||
if !bitIsSet(q.bits[:], uint(f)) {
|
||||
return false
|
||||
}
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
func doinit() {
|
||||
initS390Xbase()
|
||||
|
||||
// We need implementations of stfle, km and so on
|
||||
// to detect cryptographic features.
|
||||
if !haveAsmFunctions() {
|
||||
return
|
||||
}
|
||||
|
||||
// optional cryptographic functions
|
||||
if S390X.HasMSA {
|
||||
aes := []function{aes128, aes192, aes256}
|
||||
|
||||
// cipher message
|
||||
km, kmc := kmQuery(), kmcQuery()
|
||||
S390X.HasAES = km.Has(aes...)
|
||||
S390X.HasAESCBC = kmc.Has(aes...)
|
||||
if S390X.HasSTFLE {
|
||||
facilities := stfle()
|
||||
if facilities.Has(msa4) {
|
||||
kmctr := kmctrQuery()
|
||||
S390X.HasAESCTR = kmctr.Has(aes...)
|
||||
}
|
||||
if facilities.Has(msa8) {
|
||||
kma := kmaQuery()
|
||||
S390X.HasAESGCM = kma.Has(aes...)
|
||||
}
|
||||
}
|
||||
|
||||
// compute message digest
|
||||
kimd := kimdQuery() // intermediate (no padding)
|
||||
klmd := klmdQuery() // last (padding)
|
||||
S390X.HasSHA1 = kimd.Has(sha1) && klmd.Has(sha1)
|
||||
S390X.HasSHA256 = kimd.Has(sha256) && klmd.Has(sha256)
|
||||
S390X.HasSHA512 = kimd.Has(sha512) && klmd.Has(sha512)
|
||||
S390X.HasGHASH = kimd.Has(ghash) // KLMD-GHASH does not exist
|
||||
sha3 := []function{
|
||||
sha3_224, sha3_256, sha3_384, sha3_512,
|
||||
shake128, shake256,
|
||||
}
|
||||
S390X.HasSHA3 = kimd.Has(sha3...) && klmd.Has(sha3...)
|
||||
}
|
||||
}
|
|
@ -0,0 +1,58 @@
|
|||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build gc
|
||||
// +build gc
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
// func stfle() facilityList
|
||||
TEXT ·stfle(SB), NOSPLIT|NOFRAME, $0-32
|
||||
MOVD $ret+0(FP), R1
|
||||
MOVD $3, R0 // last doubleword index to store
|
||||
XC $32, (R1), (R1) // clear 4 doublewords (32 bytes)
|
||||
WORD $0xb2b01000 // store facility list extended (STFLE)
|
||||
RET
|
||||
|
||||
// func kmQuery() queryResult
|
||||
TEXT ·kmQuery(SB), NOSPLIT|NOFRAME, $0-16
|
||||
MOVD $0, R0 // set function code to 0 (KM-Query)
|
||||
MOVD $ret+0(FP), R1 // address of 16-byte return value
|
||||
WORD $0xB92E0024 // cipher message (KM)
|
||||
RET
|
||||
|
||||
// func kmcQuery() queryResult
|
||||
TEXT ·kmcQuery(SB), NOSPLIT|NOFRAME, $0-16
|
||||
MOVD $0, R0 // set function code to 0 (KMC-Query)
|
||||
MOVD $ret+0(FP), R1 // address of 16-byte return value
|
||||
WORD $0xB92F0024 // cipher message with chaining (KMC)
|
||||
RET
|
||||
|
||||
// func kmctrQuery() queryResult
|
||||
TEXT ·kmctrQuery(SB), NOSPLIT|NOFRAME, $0-16
|
||||
MOVD $0, R0 // set function code to 0 (KMCTR-Query)
|
||||
MOVD $ret+0(FP), R1 // address of 16-byte return value
|
||||
WORD $0xB92D4024 // cipher message with counter (KMCTR)
|
||||
RET
|
||||
|
||||
// func kmaQuery() queryResult
|
||||
TEXT ·kmaQuery(SB), NOSPLIT|NOFRAME, $0-16
|
||||
MOVD $0, R0 // set function code to 0 (KMA-Query)
|
||||
MOVD $ret+0(FP), R1 // address of 16-byte return value
|
||||
WORD $0xb9296024 // cipher message with authentication (KMA)
|
||||
RET
|
||||
|
||||
// func kimdQuery() queryResult
|
||||
TEXT ·kimdQuery(SB), NOSPLIT|NOFRAME, $0-16
|
||||
MOVD $0, R0 // set function code to 0 (KIMD-Query)
|
||||
MOVD $ret+0(FP), R1 // address of 16-byte return value
|
||||
WORD $0xB93E0024 // compute intermediate message digest (KIMD)
|
||||
RET
|
||||
|
||||
// func klmdQuery() queryResult
|
||||
TEXT ·klmdQuery(SB), NOSPLIT|NOFRAME, $0-16
|
||||
MOVD $0, R0 // set function code to 0 (KLMD-Query)
|
||||
MOVD $ret+0(FP), R1 // address of 16-byte return value
|
||||
WORD $0xB93F0024 // compute last message digest (KLMD)
|
||||
RET
|
|
@ -0,0 +1,75 @@
|
|||
// Copyright 2020 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package cpu_test
|
||||
|
||||
import (
|
||||
"runtime"
|
||||
"testing"
|
||||
"unsafe"
|
||||
|
||||
"golang.org/x/sys/cpu"
|
||||
)
|
||||
|
||||
var s390xTests = []struct {
|
||||
name string
|
||||
feature bool
|
||||
facility uint
|
||||
mandatory bool
|
||||
}{
|
||||
{"ZARCH", cpu.S390X.HasZARCH, 1, true},
|
||||
{"STFLE", cpu.S390X.HasSTFLE, 7, true},
|
||||
{"LDISP", cpu.S390X.HasLDISP, 18, true},
|
||||
{"EIMM", cpu.S390X.HasEIMM, 21, true},
|
||||
{"DFP", cpu.S390X.HasDFP, 42, false},
|
||||
{"MSA", cpu.S390X.HasMSA, 17, false},
|
||||
{"VX", cpu.S390X.HasVX, 129, false},
|
||||
{"VXE", cpu.S390X.HasVXE, 135, false},
|
||||
}
|
||||
|
||||
// bitIsSet reports whether the bit at index is set. The bit index
|
||||
// is in big endian order, so bit index 0 is the leftmost bit.
|
||||
func bitIsSet(bits [4]uint64, i uint) bool {
|
||||
return bits[i/64]&((1<<63)>>(i%64)) != 0
|
||||
}
|
||||
|
||||
// facilityList contains the contents of location 200 on zos.
|
||||
// Bits are numbered in big endian order so the
|
||||
// leftmost bit (the MSB) is at index 0.
|
||||
type facilityList struct {
|
||||
bits [4]uint64
|
||||
}
|
||||
|
||||
func TestS390XVectorFacilityFeatures(t *testing.T) {
|
||||
// vector-enhancements require vector facility to be enabled
|
||||
if cpu.S390X.HasVXE && !cpu.S390X.HasVX {
|
||||
t.Error("HasVX expected true, got false (VXE is true)")
|
||||
}
|
||||
}
|
||||
|
||||
func TestS390XMandatoryFeatures(t *testing.T) {
|
||||
for _, tc := range s390xTests {
|
||||
if tc.mandatory && !tc.feature {
|
||||
t.Errorf("Feature %s is mandatory but is not present", tc.name)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestS390XFeatures(t *testing.T) {
|
||||
if runtime.GOOS != "zos" {
|
||||
return
|
||||
}
|
||||
// Read available facilities from address 200.
|
||||
facilitiesAddress := uintptr(200)
|
||||
var facilities facilityList
|
||||
for i := 0; i < 4; i++ {
|
||||
facilities.bits[i] = *(*uint64)(unsafe.Pointer(facilitiesAddress + uintptr(8*i)))
|
||||
}
|
||||
|
||||
for _, tc := range s390xTests {
|
||||
if want := bitIsSet(facilities.bits, tc.facility); want != tc.feature {
|
||||
t.Errorf("Feature %s expected %v, got %v", tc.name, want, tc.feature)
|
||||
}
|
||||
}
|
||||
}
|
|
@ -0,0 +1,76 @@
|
|||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package cpu_test
|
||||
|
||||
import (
|
||||
"runtime"
|
||||
"testing"
|
||||
|
||||
"golang.org/x/sys/cpu"
|
||||
)
|
||||
|
||||
func TestAMD64minimalFeatures(t *testing.T) {
|
||||
if runtime.GOARCH == "amd64" {
|
||||
if !cpu.Initialized {
|
||||
t.Fatal("Initialized expected true, got false")
|
||||
}
|
||||
if !cpu.X86.HasSSE2 {
|
||||
t.Fatal("HasSSE2 expected true, got false")
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestAVX2hasAVX(t *testing.T) {
|
||||
if runtime.GOARCH == "amd64" {
|
||||
if cpu.X86.HasAVX2 && !cpu.X86.HasAVX {
|
||||
t.Fatal("HasAVX expected true, got false")
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestAVX512HasAVX2AndAVX(t *testing.T) {
|
||||
if runtime.GOARCH == "amd64" {
|
||||
if cpu.X86.HasAVX512 && !cpu.X86.HasAVX {
|
||||
t.Fatal("HasAVX expected true, got false")
|
||||
}
|
||||
if cpu.X86.HasAVX512 && !cpu.X86.HasAVX2 {
|
||||
t.Fatal("HasAVX2 expected true, got false")
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestARM64minimalFeatures(t *testing.T) {
|
||||
if runtime.GOARCH != "arm64" || (runtime.GOOS == "darwin" || runtime.GOOS == "ios") {
|
||||
return
|
||||
}
|
||||
if !cpu.ARM64.HasASIMD {
|
||||
t.Fatal("HasASIMD expected true, got false")
|
||||
}
|
||||
if !cpu.ARM64.HasFP {
|
||||
t.Fatal("HasFP expected true, got false")
|
||||
}
|
||||
}
|
||||
|
||||
func TestMIPS64Initialized(t *testing.T) {
|
||||
if runtime.GOARCH == "mips64" || runtime.GOARCH == "mips64le" {
|
||||
if !cpu.Initialized {
|
||||
t.Fatal("Initialized expected true, got false")
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// On ppc64x, the ISA bit for POWER8 should always be set on POWER8 and beyond.
|
||||
func TestPPC64minimalFeatures(t *testing.T) {
|
||||
// Do not run this with gccgo on ppc64, as it doesn't have POWER8 as a minimum
|
||||
// requirement.
|
||||
if runtime.Compiler == "gccgo" && runtime.GOARCH == "ppc64" {
|
||||
t.Skip("gccgo does not require POWER8 on ppc64; skipping")
|
||||
}
|
||||
if runtime.GOARCH == "ppc64" || runtime.GOARCH == "ppc64le" {
|
||||
if !cpu.PPC64.IsPOWER8 {
|
||||
t.Fatal("IsPOWER8 expected true, got false")
|
||||
}
|
||||
}
|
||||
}
|
|
@ -0,0 +1,18 @@
|
|||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build wasm
|
||||
// +build wasm
|
||||
|
||||
package cpu
|
||||
|
||||
// We're compiling the cpu package for an unknown (software-abstracted) CPU.
|
||||
// Make CacheLinePad an empty struct and hope that the usual struct alignment
|
||||
// rules are good enough.
|
||||
|
||||
const cacheLineSize = 0
|
||||
|
||||
func initOptions() {}
|
||||
|
||||
func archInit() {}
|
|
@ -0,0 +1,142 @@
|
|||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build 386 || amd64 || amd64p32
|
||||
// +build 386 amd64 amd64p32
|
||||
|
||||
package cpu
|
||||
|
||||
import "runtime"
|
||||
|
||||
const cacheLineSize = 64
|
||||
|
||||
func initOptions() {
|
||||
options = []option{
|
||||
{Name: "adx", Feature: &X86.HasADX},
|
||||
{Name: "aes", Feature: &X86.HasAES},
|
||||
{Name: "avx", Feature: &X86.HasAVX},
|
||||
{Name: "avx2", Feature: &X86.HasAVX2},
|
||||
{Name: "avx512", Feature: &X86.HasAVX512},
|
||||
{Name: "avx512f", Feature: &X86.HasAVX512F},
|
||||
{Name: "avx512cd", Feature: &X86.HasAVX512CD},
|
||||
{Name: "avx512er", Feature: &X86.HasAVX512ER},
|
||||
{Name: "avx512pf", Feature: &X86.HasAVX512PF},
|
||||
{Name: "avx512vl", Feature: &X86.HasAVX512VL},
|
||||
{Name: "avx512bw", Feature: &X86.HasAVX512BW},
|
||||
{Name: "avx512dq", Feature: &X86.HasAVX512DQ},
|
||||
{Name: "avx512ifma", Feature: &X86.HasAVX512IFMA},
|
||||
{Name: "avx512vbmi", Feature: &X86.HasAVX512VBMI},
|
||||
{Name: "avx512vnniw", Feature: &X86.HasAVX5124VNNIW},
|
||||
{Name: "avx5124fmaps", Feature: &X86.HasAVX5124FMAPS},
|
||||
{Name: "avx512vpopcntdq", Feature: &X86.HasAVX512VPOPCNTDQ},
|
||||
{Name: "avx512vpclmulqdq", Feature: &X86.HasAVX512VPCLMULQDQ},
|
||||
{Name: "avx512vnni", Feature: &X86.HasAVX512VNNI},
|
||||
{Name: "avx512gfni", Feature: &X86.HasAVX512GFNI},
|
||||
{Name: "avx512vaes", Feature: &X86.HasAVX512VAES},
|
||||
{Name: "avx512vbmi2", Feature: &X86.HasAVX512VBMI2},
|
||||
{Name: "avx512bitalg", Feature: &X86.HasAVX512BITALG},
|
||||
{Name: "avx512bf16", Feature: &X86.HasAVX512BF16},
|
||||
{Name: "bmi1", Feature: &X86.HasBMI1},
|
||||
{Name: "bmi2", Feature: &X86.HasBMI2},
|
||||
{Name: "erms", Feature: &X86.HasERMS},
|
||||
{Name: "fma", Feature: &X86.HasFMA},
|
||||
{Name: "osxsave", Feature: &X86.HasOSXSAVE},
|
||||
{Name: "pclmulqdq", Feature: &X86.HasPCLMULQDQ},
|
||||
{Name: "popcnt", Feature: &X86.HasPOPCNT},
|
||||
{Name: "rdrand", Feature: &X86.HasRDRAND},
|
||||
{Name: "rdseed", Feature: &X86.HasRDSEED},
|
||||
{Name: "sse3", Feature: &X86.HasSSE3},
|
||||
{Name: "sse41", Feature: &X86.HasSSE41},
|
||||
{Name: "sse42", Feature: &X86.HasSSE42},
|
||||
{Name: "ssse3", Feature: &X86.HasSSSE3},
|
||||
|
||||
// These capabilities should always be enabled on amd64:
|
||||
{Name: "sse2", Feature: &X86.HasSSE2, Required: runtime.GOARCH == "amd64"},
|
||||
}
|
||||
}
|
||||
|
||||
func archInit() {
|
||||
|
||||
Initialized = true
|
||||
|
||||
maxID, _, _, _ := cpuid(0, 0)
|
||||
|
||||
if maxID < 1 {
|
||||
return
|
||||
}
|
||||
|
||||
_, _, ecx1, edx1 := cpuid(1, 0)
|
||||
X86.HasSSE2 = isSet(26, edx1)
|
||||
|
||||
X86.HasSSE3 = isSet(0, ecx1)
|
||||
X86.HasPCLMULQDQ = isSet(1, ecx1)
|
||||
X86.HasSSSE3 = isSet(9, ecx1)
|
||||
X86.HasFMA = isSet(12, ecx1)
|
||||
X86.HasSSE41 = isSet(19, ecx1)
|
||||
X86.HasSSE42 = isSet(20, ecx1)
|
||||
X86.HasPOPCNT = isSet(23, ecx1)
|
||||
X86.HasAES = isSet(25, ecx1)
|
||||
X86.HasOSXSAVE = isSet(27, ecx1)
|
||||
X86.HasRDRAND = isSet(30, ecx1)
|
||||
|
||||
var osSupportsAVX, osSupportsAVX512 bool
|
||||
// For XGETBV, OSXSAVE bit is required and sufficient.
|
||||
if X86.HasOSXSAVE {
|
||||
eax, _ := xgetbv()
|
||||
// Check if XMM and YMM registers have OS support.
|
||||
osSupportsAVX = isSet(1, eax) && isSet(2, eax)
|
||||
|
||||
if runtime.GOOS == "darwin" {
|
||||
// Check darwin commpage for AVX512 support. Necessary because:
|
||||
// https://github.com/apple/darwin-xnu/blob/0a798f6738bc1db01281fc08ae024145e84df927/osfmk/i386/fpu.c#L175-L201
|
||||
osSupportsAVX512 = osSupportsAVX && darwinSupportsAVX512()
|
||||
} else {
|
||||
// Check if OPMASK and ZMM registers have OS support.
|
||||
osSupportsAVX512 = osSupportsAVX && isSet(5, eax) && isSet(6, eax) && isSet(7, eax)
|
||||
}
|
||||
}
|
||||
|
||||
X86.HasAVX = isSet(28, ecx1) && osSupportsAVX
|
||||
|
||||
if maxID < 7 {
|
||||
return
|
||||
}
|
||||
|
||||
_, ebx7, ecx7, edx7 := cpuid(7, 0)
|
||||
X86.HasBMI1 = isSet(3, ebx7)
|
||||
X86.HasAVX2 = isSet(5, ebx7) && osSupportsAVX
|
||||
X86.HasBMI2 = isSet(8, ebx7)
|
||||
X86.HasERMS = isSet(9, ebx7)
|
||||
X86.HasRDSEED = isSet(18, ebx7)
|
||||
X86.HasADX = isSet(19, ebx7)
|
||||
|
||||
X86.HasAVX512 = isSet(16, ebx7) && osSupportsAVX512 // Because avx-512 foundation is the core required extension
|
||||
if X86.HasAVX512 {
|
||||
X86.HasAVX512F = true
|
||||
X86.HasAVX512CD = isSet(28, ebx7)
|
||||
X86.HasAVX512ER = isSet(27, ebx7)
|
||||
X86.HasAVX512PF = isSet(26, ebx7)
|
||||
X86.HasAVX512VL = isSet(31, ebx7)
|
||||
X86.HasAVX512BW = isSet(30, ebx7)
|
||||
X86.HasAVX512DQ = isSet(17, ebx7)
|
||||
X86.HasAVX512IFMA = isSet(21, ebx7)
|
||||
X86.HasAVX512VBMI = isSet(1, ecx7)
|
||||
X86.HasAVX5124VNNIW = isSet(2, edx7)
|
||||
X86.HasAVX5124FMAPS = isSet(3, edx7)
|
||||
X86.HasAVX512VPOPCNTDQ = isSet(14, ecx7)
|
||||
X86.HasAVX512VPCLMULQDQ = isSet(10, ecx7)
|
||||
X86.HasAVX512VNNI = isSet(11, ecx7)
|
||||
X86.HasAVX512GFNI = isSet(8, ecx7)
|
||||
X86.HasAVX512VAES = isSet(9, ecx7)
|
||||
X86.HasAVX512VBMI2 = isSet(6, ecx7)
|
||||
X86.HasAVX512BITALG = isSet(12, ecx7)
|
||||
|
||||
eax71, _, _, _ := cpuid(7, 1)
|
||||
X86.HasAVX512BF16 = isSet(5, eax71)
|
||||
}
|
||||
}
|
||||
|
||||
func isSet(bitpos uint, value uint32) bool {
|
||||
return value&(1<<bitpos) != 0
|
||||
}
|
|
@ -0,0 +1,52 @@
|
|||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build (386 || amd64 || amd64p32) && gc
|
||||
// +build 386 amd64 amd64p32
|
||||
// +build gc
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
// func cpuid(eaxArg, ecxArg uint32) (eax, ebx, ecx, edx uint32)
|
||||
TEXT ·cpuid(SB), NOSPLIT, $0-24
|
||||
MOVL eaxArg+0(FP), AX
|
||||
MOVL ecxArg+4(FP), CX
|
||||
CPUID
|
||||
MOVL AX, eax+8(FP)
|
||||
MOVL BX, ebx+12(FP)
|
||||
MOVL CX, ecx+16(FP)
|
||||
MOVL DX, edx+20(FP)
|
||||
RET
|
||||
|
||||
// func xgetbv() (eax, edx uint32)
|
||||
TEXT ·xgetbv(SB),NOSPLIT,$0-8
|
||||
MOVL $0, CX
|
||||
XGETBV
|
||||
MOVL AX, eax+0(FP)
|
||||
MOVL DX, edx+4(FP)
|
||||
RET
|
||||
|
||||
// func darwinSupportsAVX512() bool
|
||||
TEXT ·darwinSupportsAVX512(SB), NOSPLIT, $0-1
|
||||
MOVB $0, ret+0(FP) // default to false
|
||||
#ifdef GOOS_darwin // return if not darwin
|
||||
#ifdef GOARCH_amd64 // return if not amd64
|
||||
// These values from:
|
||||
// https://github.com/apple/darwin-xnu/blob/xnu-4570.1.46/osfmk/i386/cpu_capabilities.h
|
||||
#define commpage64_base_address 0x00007fffffe00000
|
||||
#define commpage64_cpu_capabilities64 (commpage64_base_address+0x010)
|
||||
#define commpage64_version (commpage64_base_address+0x01E)
|
||||
#define hasAVX512F 0x0000004000000000
|
||||
MOVQ $commpage64_version, BX
|
||||
CMPW (BX), $13 // cpu_capabilities64 undefined in versions < 13
|
||||
JL no_avx512
|
||||
MOVQ $commpage64_cpu_capabilities64, BX
|
||||
MOVQ $hasAVX512F, CX
|
||||
TESTQ (BX), CX
|
||||
JZ no_avx512
|
||||
MOVB $1, ret+0(FP)
|
||||
no_avx512:
|
||||
#endif
|
||||
#endif
|
||||
RET
|
|
@ -0,0 +1,10 @@
|
|||
// Copyright 2020 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package cpu
|
||||
|
||||
func archInit() {
|
||||
doinit()
|
||||
Initialized = true
|
||||
}
|
|
@ -0,0 +1,25 @@
|
|||
// Copyright 2020 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package cpu
|
||||
|
||||
func initS390Xbase() {
|
||||
// get the facilities list
|
||||
facilities := stfle()
|
||||
|
||||
// mandatory
|
||||
S390X.HasZARCH = facilities.Has(zarch)
|
||||
S390X.HasSTFLE = facilities.Has(stflef)
|
||||
S390X.HasLDISP = facilities.Has(ldisp)
|
||||
S390X.HasEIMM = facilities.Has(eimm)
|
||||
|
||||
// optional
|
||||
S390X.HasETF3EH = facilities.Has(etf3eh)
|
||||
S390X.HasDFP = facilities.Has(dfp)
|
||||
S390X.HasMSA = facilities.Has(msa)
|
||||
S390X.HasVX = facilities.Has(vx)
|
||||
if S390X.HasVX {
|
||||
S390X.HasVXE = facilities.Has(vxe)
|
||||
}
|
||||
}
|
|
@ -0,0 +1,56 @@
|
|||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package cpu
|
||||
|
||||
import (
|
||||
"io/ioutil"
|
||||
)
|
||||
|
||||
const (
|
||||
_AT_HWCAP = 16
|
||||
_AT_HWCAP2 = 26
|
||||
|
||||
procAuxv = "/proc/self/auxv"
|
||||
|
||||
uintSize = int(32 << (^uint(0) >> 63))
|
||||
)
|
||||
|
||||
// For those platforms don't have a 'cpuid' equivalent we use HWCAP/HWCAP2
|
||||
// These are initialized in cpu_$GOARCH.go
|
||||
// and should not be changed after they are initialized.
|
||||
var hwCap uint
|
||||
var hwCap2 uint
|
||||
|
||||
func readHWCAP() error {
|
||||
buf, err := ioutil.ReadFile(procAuxv)
|
||||
if err != nil {
|
||||
// e.g. on android /proc/self/auxv is not accessible, so silently
|
||||
// ignore the error and leave Initialized = false. On some
|
||||
// architectures (e.g. arm64) doinit() implements a fallback
|
||||
// readout and will set Initialized = true again.
|
||||
return err
|
||||
}
|
||||
bo := hostByteOrder()
|
||||
for len(buf) >= 2*(uintSize/8) {
|
||||
var tag, val uint
|
||||
switch uintSize {
|
||||
case 32:
|
||||
tag = uint(bo.Uint32(buf[0:]))
|
||||
val = uint(bo.Uint32(buf[4:]))
|
||||
buf = buf[8:]
|
||||
case 64:
|
||||
tag = uint(bo.Uint64(buf[0:]))
|
||||
val = uint(bo.Uint64(buf[8:]))
|
||||
buf = buf[16:]
|
||||
}
|
||||
switch tag {
|
||||
case _AT_HWCAP:
|
||||
hwCap = val
|
||||
case _AT_HWCAP2:
|
||||
hwCap2 = val
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
|
@ -0,0 +1,27 @@
|
|||
// Copyright 2020 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Recreate a getsystemcfg syscall handler instead of
|
||||
// using the one provided by x/sys/unix to avoid having
|
||||
// the dependency between them. (See golang.org/issue/32102)
|
||||
// Morever, this file will be used during the building of
|
||||
// gccgo's libgo and thus must not used a CGo method.
|
||||
|
||||
//go:build aix && gccgo
|
||||
// +build aix,gccgo
|
||||
|
||||
package cpu
|
||||
|
||||
import (
|
||||
"syscall"
|
||||
)
|
||||
|
||||
//extern getsystemcfg
|
||||
func gccgoGetsystemcfg(label uint32) (r uint64)
|
||||
|
||||
func callgetsystemcfg(label int) (r1 uintptr, e1 syscall.Errno) {
|
||||
r1 = uintptr(gccgoGetsystemcfg(uint32(label)))
|
||||
e1 = syscall.GetErrno()
|
||||
return
|
||||
}
|
|
@ -0,0 +1,36 @@
|
|||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Minimal copy of x/sys/unix so the cpu package can make a
|
||||
// system call on AIX without depending on x/sys/unix.
|
||||
// (See golang.org/issue/32102)
|
||||
|
||||
//go:build aix && ppc64 && gc
|
||||
// +build aix,ppc64,gc
|
||||
|
||||
package cpu
|
||||
|
||||
import (
|
||||
"syscall"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
//go:cgo_import_dynamic libc_getsystemcfg getsystemcfg "libc.a/shr_64.o"
|
||||
|
||||
//go:linkname libc_getsystemcfg libc_getsystemcfg
|
||||
|
||||
type syscallFunc uintptr
|
||||
|
||||
var libc_getsystemcfg syscallFunc
|
||||
|
||||
type errno = syscall.Errno
|
||||
|
||||
// Implemented in runtime/syscall_aix.go.
|
||||
func rawSyscall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err errno)
|
||||
func syscall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err errno)
|
||||
|
||||
func callgetsystemcfg(label int) (r1 uintptr, e1 errno) {
|
||||
r1, _, e1 = syscall6(uintptr(unsafe.Pointer(&libc_getsystemcfg)), 1, uintptr(label), 0, 0, 0, 0, 0)
|
||||
return
|
||||
}
|
|
@ -0,0 +1,102 @@
|
|||
// Copyright 2020 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Package execabs is a drop-in replacement for os/exec
|
||||
// that requires PATH lookups to find absolute paths.
|
||||
// That is, execabs.Command("cmd") runs the same PATH lookup
|
||||
// as exec.Command("cmd"), but if the result is a path
|
||||
// which is relative, the Run and Start methods will report
|
||||
// an error instead of running the executable.
|
||||
//
|
||||
// See https://blog.golang.org/path-security for more information
|
||||
// about when it may be necessary or appropriate to use this package.
|
||||
package execabs
|
||||
|
||||
import (
|
||||
"context"
|
||||
"fmt"
|
||||
"os/exec"
|
||||
"path/filepath"
|
||||
"reflect"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
// ErrNotFound is the error resulting if a path search failed to find an executable file.
|
||||
// It is an alias for exec.ErrNotFound.
|
||||
var ErrNotFound = exec.ErrNotFound
|
||||
|
||||
// Cmd represents an external command being prepared or run.
|
||||
// It is an alias for exec.Cmd.
|
||||
type Cmd = exec.Cmd
|
||||
|
||||
// Error is returned by LookPath when it fails to classify a file as an executable.
|
||||
// It is an alias for exec.Error.
|
||||
type Error = exec.Error
|
||||
|
||||
// An ExitError reports an unsuccessful exit by a command.
|
||||
// It is an alias for exec.ExitError.
|
||||
type ExitError = exec.ExitError
|
||||
|
||||
func relError(file, path string) error {
|
||||
return fmt.Errorf("%s resolves to executable in current directory (.%c%s)", file, filepath.Separator, path)
|
||||
}
|
||||
|
||||
// LookPath searches for an executable named file in the directories
|
||||
// named by the PATH environment variable. If file contains a slash,
|
||||
// it is tried directly and the PATH is not consulted. The result will be
|
||||
// an absolute path.
|
||||
//
|
||||
// LookPath differs from exec.LookPath in its handling of PATH lookups,
|
||||
// which are used for file names without slashes. If exec.LookPath's
|
||||
// PATH lookup would have returned an executable from the current directory,
|
||||
// LookPath instead returns an error.
|
||||
func LookPath(file string) (string, error) {
|
||||
path, err := exec.LookPath(file)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
if filepath.Base(file) == file && !filepath.IsAbs(path) {
|
||||
return "", relError(file, path)
|
||||
}
|
||||
return path, nil
|
||||
}
|
||||
|
||||
func fixCmd(name string, cmd *exec.Cmd) {
|
||||
if filepath.Base(name) == name && !filepath.IsAbs(cmd.Path) {
|
||||
// exec.Command was called with a bare binary name and
|
||||
// exec.LookPath returned a path which is not absolute.
|
||||
// Set cmd.lookPathErr and clear cmd.Path so that it
|
||||
// cannot be run.
|
||||
lookPathErr := (*error)(unsafe.Pointer(reflect.ValueOf(cmd).Elem().FieldByName("lookPathErr").Addr().Pointer()))
|
||||
if *lookPathErr == nil {
|
||||
*lookPathErr = relError(name, cmd.Path)
|
||||
}
|
||||
cmd.Path = ""
|
||||
}
|
||||
}
|
||||
|
||||
// CommandContext is like Command but includes a context.
|
||||
//
|
||||
// The provided context is used to kill the process (by calling os.Process.Kill)
|
||||
// if the context becomes done before the command completes on its own.
|
||||
func CommandContext(ctx context.Context, name string, arg ...string) *exec.Cmd {
|
||||
cmd := exec.CommandContext(ctx, name, arg...)
|
||||
fixCmd(name, cmd)
|
||||
return cmd
|
||||
|
||||
}
|
||||
|
||||
// Command returns the Cmd struct to execute the named program with the given arguments.
|
||||
// See exec.Command for most details.
|
||||
//
|
||||
// Command differs from exec.Command in its handling of PATH lookups,
|
||||
// which are used when the program name contains no slashes.
|
||||
// If exec.Command would have returned an exec.Cmd configured to run an
|
||||
// executable from the current directory, Command instead
|
||||
// returns an exec.Cmd that will return an error from Start or Run.
|
||||
func Command(name string, arg ...string) *exec.Cmd {
|
||||
cmd := exec.Command(name, arg...)
|
||||
fixCmd(name, cmd)
|
||||
return cmd
|
||||
}
|
|
@ -0,0 +1,132 @@
|
|||
// Copyright 2020 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package execabs
|
||||
|
||||
import (
|
||||
"context"
|
||||
"fmt"
|
||||
"io/ioutil"
|
||||
"os"
|
||||
"os/exec"
|
||||
"path/filepath"
|
||||
"runtime"
|
||||
"testing"
|
||||
)
|
||||
|
||||
// hasExec reports whether the current system can start new processes
|
||||
// using os.StartProcess or (more commonly) exec.Command.
|
||||
// Copied from internal/testenv.HasExec
|
||||
func hasExec() bool {
|
||||
switch runtime.GOOS {
|
||||
case "js", "ios":
|
||||
return false
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
// mustHaveExec checks that the current system can start new processes
|
||||
// using os.StartProcess or (more commonly) exec.Command.
|
||||
// If not, mustHaveExec calls t.Skip with an explanation.
|
||||
// Copied from internal/testenv.MustHaveExec
|
||||
func mustHaveExec(t testing.TB) {
|
||||
if !hasExec() {
|
||||
t.Skipf("skipping test: cannot exec subprocess on %s/%s", runtime.GOOS, runtime.GOARCH)
|
||||
}
|
||||
}
|
||||
|
||||
func TestFixCmd(t *testing.T) {
|
||||
cmd := &exec.Cmd{Path: "hello"}
|
||||
fixCmd("hello", cmd)
|
||||
if cmd.Path != "" {
|
||||
t.Errorf("fixCmd didn't clear cmd.Path")
|
||||
}
|
||||
expectedErr := fmt.Sprintf("hello resolves to executable in current directory (.%chello)", filepath.Separator)
|
||||
if err := cmd.Run(); err == nil {
|
||||
t.Fatal("Command.Run didn't fail")
|
||||
} else if err.Error() != expectedErr {
|
||||
t.Fatalf("Command.Run returned unexpected error: want %q, got %q", expectedErr, err.Error())
|
||||
}
|
||||
}
|
||||
|
||||
func TestCommand(t *testing.T) {
|
||||
mustHaveExec(t)
|
||||
|
||||
for _, cmd := range []func(string) *Cmd{
|
||||
func(s string) *Cmd { return Command(s) },
|
||||
func(s string) *Cmd { return CommandContext(context.Background(), s) },
|
||||
} {
|
||||
tmpDir, err := ioutil.TempDir("", "execabs-test")
|
||||
if err != nil {
|
||||
t.Fatalf("ioutil.TempDir failed: %s", err)
|
||||
}
|
||||
defer os.RemoveAll(tmpDir)
|
||||
executable := "execabs-test"
|
||||
if runtime.GOOS == "windows" {
|
||||
executable += ".exe"
|
||||
}
|
||||
if err = ioutil.WriteFile(filepath.Join(tmpDir, executable), []byte{1, 2, 3}, 0111); err != nil {
|
||||
t.Fatalf("ioutil.WriteFile failed: %s", err)
|
||||
}
|
||||
cwd, err := os.Getwd()
|
||||
if err != nil {
|
||||
t.Fatalf("os.Getwd failed: %s", err)
|
||||
}
|
||||
defer os.Chdir(cwd)
|
||||
if err = os.Chdir(tmpDir); err != nil {
|
||||
t.Fatalf("os.Chdir failed: %s", err)
|
||||
}
|
||||
if runtime.GOOS != "windows" {
|
||||
// add "." to PATH so that exec.LookPath looks in the current directory on
|
||||
// non-windows platforms as well
|
||||
origPath := os.Getenv("PATH")
|
||||
defer os.Setenv("PATH", origPath)
|
||||
os.Setenv("PATH", fmt.Sprintf(".:%s", origPath))
|
||||
}
|
||||
expectedErr := fmt.Sprintf("execabs-test resolves to executable in current directory (.%c%s)", filepath.Separator, executable)
|
||||
if err = cmd("execabs-test").Run(); err == nil {
|
||||
t.Fatalf("Command.Run didn't fail when exec.LookPath returned a relative path")
|
||||
} else if err.Error() != expectedErr {
|
||||
t.Errorf("Command.Run returned unexpected error: want %q, got %q", expectedErr, err.Error())
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestLookPath(t *testing.T) {
|
||||
mustHaveExec(t)
|
||||
|
||||
tmpDir, err := ioutil.TempDir("", "execabs-test")
|
||||
if err != nil {
|
||||
t.Fatalf("ioutil.TempDir failed: %s", err)
|
||||
}
|
||||
defer os.RemoveAll(tmpDir)
|
||||
executable := "execabs-test"
|
||||
if runtime.GOOS == "windows" {
|
||||
executable += ".exe"
|
||||
}
|
||||
if err = ioutil.WriteFile(filepath.Join(tmpDir, executable), []byte{1, 2, 3}, 0111); err != nil {
|
||||
t.Fatalf("ioutil.WriteFile failed: %s", err)
|
||||
}
|
||||
cwd, err := os.Getwd()
|
||||
if err != nil {
|
||||
t.Fatalf("os.Getwd failed: %s", err)
|
||||
}
|
||||
defer os.Chdir(cwd)
|
||||
if err = os.Chdir(tmpDir); err != nil {
|
||||
t.Fatalf("os.Chdir failed: %s", err)
|
||||
}
|
||||
if runtime.GOOS != "windows" {
|
||||
// add "." to PATH so that exec.LookPath looks in the current directory on
|
||||
// non-windows platforms as well
|
||||
origPath := os.Getenv("PATH")
|
||||
defer os.Setenv("PATH", origPath)
|
||||
os.Setenv("PATH", fmt.Sprintf(".:%s", origPath))
|
||||
}
|
||||
expectedErr := fmt.Sprintf("execabs-test resolves to executable in current directory (.%c%s)", filepath.Separator, executable)
|
||||
if _, err := LookPath("execabs-test"); err == nil {
|
||||
t.Fatalf("LookPath didn't fail when finding a non-relative path")
|
||||
} else if err.Error() != expectedErr {
|
||||
t.Errorf("LookPath returned unexpected error: want %q, got %q", expectedErr, err.Error())
|
||||
}
|
||||
}
|
|
@ -0,0 +1,3 @@
|
|||
module github.com/HACKERALERT/Picocrypt/src/external/sys
|
||||
|
||||
go 1.17
|
|
@ -0,0 +1,30 @@
|
|||
// Copyright 2020 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Package unsafeheader contains header declarations for the Go runtime's
|
||||
// slice and string implementations.
|
||||
//
|
||||
// This package allows x/sys to use types equivalent to
|
||||
// reflect.SliceHeader and reflect.StringHeader without introducing
|
||||
// a dependency on the (relatively heavy) "reflect" package.
|
||||
package unsafeheader
|
||||
|
||||
import (
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
// Slice is the runtime representation of a slice.
|
||||
// It cannot be used safely or portably and its representation may change in a later release.
|
||||
type Slice struct {
|
||||
Data unsafe.Pointer
|
||||
Len int
|
||||
Cap int
|
||||
}
|
||||
|
||||
// String is the runtime representation of a string.
|
||||
// It cannot be used safely or portably and its representation may change in a later release.
|
||||
type String struct {
|
||||
Data unsafe.Pointer
|
||||
Len int
|
||||
}
|
|
@ -0,0 +1,101 @@
|
|||
// Copyright 2020 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package unsafeheader_test
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"reflect"
|
||||
"testing"
|
||||
"unsafe"
|
||||
|
||||
"golang.org/x/sys/internal/unsafeheader"
|
||||
)
|
||||
|
||||
// TestTypeMatchesReflectType ensures that the name and layout of the
|
||||
// unsafeheader types matches the corresponding Header types in the reflect
|
||||
// package.
|
||||
func TestTypeMatchesReflectType(t *testing.T) {
|
||||
t.Run("Slice", func(t *testing.T) {
|
||||
testHeaderMatchesReflect(t, unsafeheader.Slice{}, reflect.SliceHeader{})
|
||||
})
|
||||
|
||||
t.Run("String", func(t *testing.T) {
|
||||
testHeaderMatchesReflect(t, unsafeheader.String{}, reflect.StringHeader{})
|
||||
})
|
||||
}
|
||||
|
||||
func testHeaderMatchesReflect(t *testing.T, header, reflectHeader interface{}) {
|
||||
h := reflect.TypeOf(header)
|
||||
rh := reflect.TypeOf(reflectHeader)
|
||||
|
||||
for i := 0; i < h.NumField(); i++ {
|
||||
f := h.Field(i)
|
||||
rf, ok := rh.FieldByName(f.Name)
|
||||
if !ok {
|
||||
t.Errorf("Field %d of %v is named %s, but no such field exists in %v", i, h, f.Name, rh)
|
||||
continue
|
||||
}
|
||||
if !typeCompatible(f.Type, rf.Type) {
|
||||
t.Errorf("%v.%s has type %v, but %v.%s has type %v", h, f.Name, f.Type, rh, rf.Name, rf.Type)
|
||||
}
|
||||
if f.Offset != rf.Offset {
|
||||
t.Errorf("%v.%s has offset %d, but %v.%s has offset %d", h, f.Name, f.Offset, rh, rf.Name, rf.Offset)
|
||||
}
|
||||
}
|
||||
|
||||
if h.NumField() != rh.NumField() {
|
||||
t.Errorf("%v has %d fields, but %v has %d", h, h.NumField(), rh, rh.NumField())
|
||||
}
|
||||
if h.Align() != rh.Align() {
|
||||
t.Errorf("%v has alignment %d, but %v has alignment %d", h, h.Align(), rh, rh.Align())
|
||||
}
|
||||
}
|
||||
|
||||
var (
|
||||
unsafePointerType = reflect.TypeOf(unsafe.Pointer(nil))
|
||||
uintptrType = reflect.TypeOf(uintptr(0))
|
||||
)
|
||||
|
||||
func typeCompatible(t, rt reflect.Type) bool {
|
||||
return t == rt || (t == unsafePointerType && rt == uintptrType)
|
||||
}
|
||||
|
||||
// TestWriteThroughHeader ensures that the headers in the unsafeheader package
|
||||
// can successfully mutate variables of the corresponding built-in types.
|
||||
//
|
||||
// This test is expected to fail under -race (which implicitly enables
|
||||
// -d=checkptr) if the runtime views the header types as incompatible with the
|
||||
// underlying built-in types.
|
||||
func TestWriteThroughHeader(t *testing.T) {
|
||||
t.Run("Slice", func(t *testing.T) {
|
||||
s := []byte("Hello, checkptr!")[:5]
|
||||
|
||||
var alias []byte
|
||||
hdr := (*unsafeheader.Slice)(unsafe.Pointer(&alias))
|
||||
hdr.Data = unsafe.Pointer(&s[0])
|
||||
hdr.Cap = cap(s)
|
||||
hdr.Len = len(s)
|
||||
|
||||
if !bytes.Equal(alias, s) {
|
||||
t.Errorf("alias of %T(%q) constructed via Slice = %T(%q)", s, s, alias, alias)
|
||||
}
|
||||
if cap(alias) != cap(s) {
|
||||
t.Errorf("alias of %T with cap %d has cap %d", s, cap(s), cap(alias))
|
||||
}
|
||||
})
|
||||
|
||||
t.Run("String", func(t *testing.T) {
|
||||
s := "Hello, checkptr!"
|
||||
|
||||
var alias string
|
||||
hdr := (*unsafeheader.String)(unsafe.Pointer(&alias))
|
||||
hdr.Data = (*unsafeheader.String)(unsafe.Pointer(&s)).Data
|
||||
hdr.Len = len(s)
|
||||
|
||||
if alias != s {
|
||||
t.Errorf("alias of %q constructed via String = %q", s, alias)
|
||||
}
|
||||
})
|
||||
}
|
|
@ -0,0 +1,8 @@
|
|||
// Copyright 2014 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
TEXT ·use(SB),NOSPLIT,$0
|
||||
RET
|
|
@ -0,0 +1,30 @@
|
|||
// Copyright 2009 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
//
|
||||
// System call support for 386, Plan 9
|
||||
//
|
||||
|
||||
// Just jump to package syscall's implementation for all these functions.
|
||||
// The runtime may know about them.
|
||||
|
||||
TEXT ·Syscall(SB),NOSPLIT,$0-32
|
||||
JMP syscall·Syscall(SB)
|
||||
|
||||
TEXT ·Syscall6(SB),NOSPLIT,$0-44
|
||||
JMP syscall·Syscall6(SB)
|
||||
|
||||
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
|
||||
JMP syscall·RawSyscall(SB)
|
||||
|
||||
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
|
||||
JMP syscall·RawSyscall6(SB)
|
||||
|
||||
TEXT ·seek(SB),NOSPLIT,$0-36
|
||||
JMP syscall·seek(SB)
|
||||
|
||||
TEXT ·exit(SB),NOSPLIT,$4-4
|
||||
JMP syscall·exit(SB)
|
|
@ -0,0 +1,30 @@
|
|||
// Copyright 2009 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
//
|
||||
// System call support for amd64, Plan 9
|
||||
//
|
||||
|
||||
// Just jump to package syscall's implementation for all these functions.
|
||||
// The runtime may know about them.
|
||||
|
||||
TEXT ·Syscall(SB),NOSPLIT,$0-64
|
||||
JMP syscall·Syscall(SB)
|
||||
|
||||
TEXT ·Syscall6(SB),NOSPLIT,$0-88
|
||||
JMP syscall·Syscall6(SB)
|
||||
|
||||
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
|
||||
JMP syscall·RawSyscall(SB)
|
||||
|
||||
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
|
||||
JMP syscall·RawSyscall6(SB)
|
||||
|
||||
TEXT ·seek(SB),NOSPLIT,$0-56
|
||||
JMP syscall·seek(SB)
|
||||
|
||||
TEXT ·exit(SB),NOSPLIT,$8-8
|
||||
JMP syscall·exit(SB)
|
|
@ -0,0 +1,25 @@
|
|||
// Copyright 2009 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
// System call support for plan9 on arm
|
||||
|
||||
// Just jump to package syscall's implementation for all these functions.
|
||||
// The runtime may know about them.
|
||||
|
||||
TEXT ·Syscall(SB),NOSPLIT,$0-32
|
||||
JMP syscall·Syscall(SB)
|
||||
|
||||
TEXT ·Syscall6(SB),NOSPLIT,$0-44
|
||||
JMP syscall·Syscall6(SB)
|
||||
|
||||
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
|
||||
JMP syscall·RawSyscall(SB)
|
||||
|
||||
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
|
||||
JMP syscall·RawSyscall6(SB)
|
||||
|
||||
TEXT ·seek(SB),NOSPLIT,$0-36
|
||||
JMP syscall·exit(SB)
|
|
@ -0,0 +1,70 @@
|
|||
package plan9
|
||||
|
||||
// Plan 9 Constants
|
||||
|
||||
// Open modes
|
||||
const (
|
||||
O_RDONLY = 0
|
||||
O_WRONLY = 1
|
||||
O_RDWR = 2
|
||||
O_TRUNC = 16
|
||||
O_CLOEXEC = 32
|
||||
O_EXCL = 0x1000
|
||||
)
|
||||
|
||||
// Rfork flags
|
||||
const (
|
||||
RFNAMEG = 1 << 0
|
||||
RFENVG = 1 << 1
|
||||
RFFDG = 1 << 2
|
||||
RFNOTEG = 1 << 3
|
||||
RFPROC = 1 << 4
|
||||
RFMEM = 1 << 5
|
||||
RFNOWAIT = 1 << 6
|
||||
RFCNAMEG = 1 << 10
|
||||
RFCENVG = 1 << 11
|
||||
RFCFDG = 1 << 12
|
||||
RFREND = 1 << 13
|
||||
RFNOMNT = 1 << 14
|
||||
)
|
||||
|
||||
// Qid.Type bits
|
||||
const (
|
||||
QTDIR = 0x80
|
||||
QTAPPEND = 0x40
|
||||
QTEXCL = 0x20
|
||||
QTMOUNT = 0x10
|
||||
QTAUTH = 0x08
|
||||
QTTMP = 0x04
|
||||
QTFILE = 0x00
|
||||
)
|
||||
|
||||
// Dir.Mode bits
|
||||
const (
|
||||
DMDIR = 0x80000000
|
||||
DMAPPEND = 0x40000000
|
||||
DMEXCL = 0x20000000
|
||||
DMMOUNT = 0x10000000
|
||||
DMAUTH = 0x08000000
|
||||
DMTMP = 0x04000000
|
||||
DMREAD = 0x4
|
||||
DMWRITE = 0x2
|
||||
DMEXEC = 0x1
|
||||
)
|
||||
|
||||
const (
|
||||
STATMAX = 65535
|
||||
ERRMAX = 128
|
||||
STATFIXLEN = 49
|
||||
)
|
||||
|
||||
// Mount and bind flags
|
||||
const (
|
||||
MREPL = 0x0000
|
||||
MBEFORE = 0x0001
|
||||
MAFTER = 0x0002
|
||||
MORDER = 0x0003
|
||||
MCREATE = 0x0004
|
||||
MCACHE = 0x0010
|
||||
MMASK = 0x0017
|
||||
)
|
|
@ -0,0 +1,212 @@
|
|||
// Copyright 2012 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Plan 9 directory marshalling. See intro(5).
|
||||
|
||||
package plan9
|
||||
|
||||
import "errors"
|
||||
|
||||
var (
|
||||
ErrShortStat = errors.New("stat buffer too short")
|
||||
ErrBadStat = errors.New("malformed stat buffer")
|
||||
ErrBadName = errors.New("bad character in file name")
|
||||
)
|
||||
|
||||
// A Qid represents a 9P server's unique identification for a file.
|
||||
type Qid struct {
|
||||
Path uint64 // the file server's unique identification for the file
|
||||
Vers uint32 // version number for given Path
|
||||
Type uint8 // the type of the file (plan9.QTDIR for example)
|
||||
}
|
||||
|
||||
// A Dir contains the metadata for a file.
|
||||
type Dir struct {
|
||||
// system-modified data
|
||||
Type uint16 // server type
|
||||
Dev uint32 // server subtype
|
||||
|
||||
// file data
|
||||
Qid Qid // unique id from server
|
||||
Mode uint32 // permissions
|
||||
Atime uint32 // last read time
|
||||
Mtime uint32 // last write time
|
||||
Length int64 // file length
|
||||
Name string // last element of path
|
||||
Uid string // owner name
|
||||
Gid string // group name
|
||||
Muid string // last modifier name
|
||||
}
|
||||
|
||||
var nullDir = Dir{
|
||||
Type: ^uint16(0),
|
||||
Dev: ^uint32(0),
|
||||
Qid: Qid{
|
||||
Path: ^uint64(0),
|
||||
Vers: ^uint32(0),
|
||||
Type: ^uint8(0),
|
||||
},
|
||||
Mode: ^uint32(0),
|
||||
Atime: ^uint32(0),
|
||||
Mtime: ^uint32(0),
|
||||
Length: ^int64(0),
|
||||
}
|
||||
|
||||
// Null assigns special "don't touch" values to members of d to
|
||||
// avoid modifying them during plan9.Wstat.
|
||||
func (d *Dir) Null() { *d = nullDir }
|
||||
|
||||
// Marshal encodes a 9P stat message corresponding to d into b
|
||||
//
|
||||
// If there isn't enough space in b for a stat message, ErrShortStat is returned.
|
||||
func (d *Dir) Marshal(b []byte) (n int, err error) {
|
||||
n = STATFIXLEN + len(d.Name) + len(d.Uid) + len(d.Gid) + len(d.Muid)
|
||||
if n > len(b) {
|
||||
return n, ErrShortStat
|
||||
}
|
||||
|
||||
for _, c := range d.Name {
|
||||
if c == '/' {
|
||||
return n, ErrBadName
|
||||
}
|
||||
}
|
||||
|
||||
b = pbit16(b, uint16(n)-2)
|
||||
b = pbit16(b, d.Type)
|
||||
b = pbit32(b, d.Dev)
|
||||
b = pbit8(b, d.Qid.Type)
|
||||
b = pbit32(b, d.Qid.Vers)
|
||||
b = pbit64(b, d.Qid.Path)
|
||||
b = pbit32(b, d.Mode)
|
||||
b = pbit32(b, d.Atime)
|
||||
b = pbit32(b, d.Mtime)
|
||||
b = pbit64(b, uint64(d.Length))
|
||||
b = pstring(b, d.Name)
|
||||
b = pstring(b, d.Uid)
|
||||
b = pstring(b, d.Gid)
|
||||
b = pstring(b, d.Muid)
|
||||
|
||||
return n, nil
|
||||
}
|
||||
|
||||
// UnmarshalDir decodes a single 9P stat message from b and returns the resulting Dir.
|
||||
//
|
||||
// If b is too small to hold a valid stat message, ErrShortStat is returned.
|
||||
//
|
||||
// If the stat message itself is invalid, ErrBadStat is returned.
|
||||
func UnmarshalDir(b []byte) (*Dir, error) {
|
||||
if len(b) < STATFIXLEN {
|
||||
return nil, ErrShortStat
|
||||
}
|
||||
size, buf := gbit16(b)
|
||||
if len(b) != int(size)+2 {
|
||||
return nil, ErrBadStat
|
||||
}
|
||||
b = buf
|
||||
|
||||
var d Dir
|
||||
d.Type, b = gbit16(b)
|
||||
d.Dev, b = gbit32(b)
|
||||
d.Qid.Type, b = gbit8(b)
|
||||
d.Qid.Vers, b = gbit32(b)
|
||||
d.Qid.Path, b = gbit64(b)
|
||||
d.Mode, b = gbit32(b)
|
||||
d.Atime, b = gbit32(b)
|
||||
d.Mtime, b = gbit32(b)
|
||||
|
||||
n, b := gbit64(b)
|
||||
d.Length = int64(n)
|
||||
|
||||
var ok bool
|
||||
if d.Name, b, ok = gstring(b); !ok {
|
||||
return nil, ErrBadStat
|
||||
}
|
||||
if d.Uid, b, ok = gstring(b); !ok {
|
||||
return nil, ErrBadStat
|
||||
}
|
||||
if d.Gid, b, ok = gstring(b); !ok {
|
||||
return nil, ErrBadStat
|
||||
}
|
||||
if d.Muid, b, ok = gstring(b); !ok {
|
||||
return nil, ErrBadStat
|
||||
}
|
||||
|
||||
return &d, nil
|
||||
}
|
||||
|
||||
// pbit8 copies the 8-bit number v to b and returns the remaining slice of b.
|
||||
func pbit8(b []byte, v uint8) []byte {
|
||||
b[0] = byte(v)
|
||||
return b[1:]
|
||||
}
|
||||
|
||||
// pbit16 copies the 16-bit number v to b in little-endian order and returns the remaining slice of b.
|
||||
func pbit16(b []byte, v uint16) []byte {
|
||||
b[0] = byte(v)
|
||||
b[1] = byte(v >> 8)
|
||||
return b[2:]
|
||||
}
|
||||
|
||||
// pbit32 copies the 32-bit number v to b in little-endian order and returns the remaining slice of b.
|
||||
func pbit32(b []byte, v uint32) []byte {
|
||||
b[0] = byte(v)
|
||||
b[1] = byte(v >> 8)
|
||||
b[2] = byte(v >> 16)
|
||||
b[3] = byte(v >> 24)
|
||||
return b[4:]
|
||||
}
|
||||
|
||||
// pbit64 copies the 64-bit number v to b in little-endian order and returns the remaining slice of b.
|
||||
func pbit64(b []byte, v uint64) []byte {
|
||||
b[0] = byte(v)
|
||||
b[1] = byte(v >> 8)
|
||||
b[2] = byte(v >> 16)
|
||||
b[3] = byte(v >> 24)
|
||||
b[4] = byte(v >> 32)
|
||||
b[5] = byte(v >> 40)
|
||||
b[6] = byte(v >> 48)
|
||||
b[7] = byte(v >> 56)
|
||||
return b[8:]
|
||||
}
|
||||
|
||||
// pstring copies the string s to b, prepending it with a 16-bit length in little-endian order, and
|
||||
// returning the remaining slice of b..
|
||||
func pstring(b []byte, s string) []byte {
|
||||
b = pbit16(b, uint16(len(s)))
|
||||
n := copy(b, s)
|
||||
return b[n:]
|
||||
}
|
||||
|
||||
// gbit8 reads an 8-bit number from b and returns it with the remaining slice of b.
|
||||
func gbit8(b []byte) (uint8, []byte) {
|
||||
return uint8(b[0]), b[1:]
|
||||
}
|
||||
|
||||
// gbit16 reads a 16-bit number in little-endian order from b and returns it with the remaining slice of b.
|
||||
func gbit16(b []byte) (uint16, []byte) {
|
||||
return uint16(b[0]) | uint16(b[1])<<8, b[2:]
|
||||
}
|
||||
|
||||
// gbit32 reads a 32-bit number in little-endian order from b and returns it with the remaining slice of b.
|
||||
func gbit32(b []byte) (uint32, []byte) {
|
||||
return uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24, b[4:]
|
||||
}
|
||||
|
||||
// gbit64 reads a 64-bit number in little-endian order from b and returns it with the remaining slice of b.
|
||||
func gbit64(b []byte) (uint64, []byte) {
|
||||
lo := uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24
|
||||
hi := uint32(b[4]) | uint32(b[5])<<8 | uint32(b[6])<<16 | uint32(b[7])<<24
|
||||
return uint64(lo) | uint64(hi)<<32, b[8:]
|
||||
}
|
||||
|
||||
// gstring reads a string from b, prefixed with a 16-bit length in little-endian order.
|
||||
// It returns the string with the remaining slice of b and a boolean. If the length is
|
||||
// greater than the number of bytes in b, the boolean will be false.
|
||||
func gstring(b []byte) (string, []byte, bool) {
|
||||
n, b := gbit16(b)
|
||||
if int(n) > len(b) {
|
||||
return "", b, false
|
||||
}
|
||||
return string(b[:n]), b[n:], true
|
||||
}
|
|
@ -0,0 +1,31 @@
|
|||
// Copyright 2011 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Plan 9 environment variables.
|
||||
|
||||
package plan9
|
||||
|
||||
import (
|
||||
"syscall"
|
||||
)
|
||||
|
||||
func Getenv(key string) (value string, found bool) {
|
||||
return syscall.Getenv(key)
|
||||
}
|
||||
|
||||
func Setenv(key, value string) error {
|
||||
return syscall.Setenv(key, value)
|
||||
}
|
||||
|
||||
func Clearenv() {
|
||||
syscall.Clearenv()
|
||||
}
|
||||
|
||||
func Environ() []string {
|
||||
return syscall.Environ()
|
||||
}
|
||||
|
||||
func Unsetenv(key string) error {
|
||||
return syscall.Unsetenv(key)
|
||||
}
|
|
@ -0,0 +1,50 @@
|
|||
// Copyright 2011 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package plan9
|
||||
|
||||
import "syscall"
|
||||
|
||||
// Constants
|
||||
const (
|
||||
// Invented values to support what package os expects.
|
||||
O_CREAT = 0x02000
|
||||
O_APPEND = 0x00400
|
||||
O_NOCTTY = 0x00000
|
||||
O_NONBLOCK = 0x00000
|
||||
O_SYNC = 0x00000
|
||||
O_ASYNC = 0x00000
|
||||
|
||||
S_IFMT = 0x1f000
|
||||
S_IFIFO = 0x1000
|
||||
S_IFCHR = 0x2000
|
||||
S_IFDIR = 0x4000
|
||||
S_IFBLK = 0x6000
|
||||
S_IFREG = 0x8000
|
||||
S_IFLNK = 0xa000
|
||||
S_IFSOCK = 0xc000
|
||||
)
|
||||
|
||||
// Errors
|
||||
var (
|
||||
EINVAL = syscall.NewError("bad arg in system call")
|
||||
ENOTDIR = syscall.NewError("not a directory")
|
||||
EISDIR = syscall.NewError("file is a directory")
|
||||
ENOENT = syscall.NewError("file does not exist")
|
||||
EEXIST = syscall.NewError("file already exists")
|
||||
EMFILE = syscall.NewError("no free file descriptors")
|
||||
EIO = syscall.NewError("i/o error")
|
||||
ENAMETOOLONG = syscall.NewError("file name too long")
|
||||
EINTR = syscall.NewError("interrupted")
|
||||
EPERM = syscall.NewError("permission denied")
|
||||
EBUSY = syscall.NewError("no free devices")
|
||||
ETIMEDOUT = syscall.NewError("connection timed out")
|
||||
EPLAN9 = syscall.NewError("not supported by plan 9")
|
||||
|
||||
// The following errors do not correspond to any
|
||||
// Plan 9 system messages. Invented to support
|
||||
// what package os and others expect.
|
||||
EACCES = syscall.NewError("access permission denied")
|
||||
EAFNOSUPPORT = syscall.NewError("address family not supported by protocol")
|
||||
)
|
|
@ -0,0 +1,150 @@
|
|||
#!/usr/bin/env bash
|
||||
# Copyright 2009 The Go Authors. All rights reserved.
|
||||
# Use of this source code is governed by a BSD-style
|
||||
# license that can be found in the LICENSE file.
|
||||
|
||||
# The plan9 package provides access to the raw system call
|
||||
# interface of the underlying operating system. Porting Go to
|
||||
# a new architecture/operating system combination requires
|
||||
# some manual effort, though there are tools that automate
|
||||
# much of the process. The auto-generated files have names
|
||||
# beginning with z.
|
||||
#
|
||||
# This script runs or (given -n) prints suggested commands to generate z files
|
||||
# for the current system. Running those commands is not automatic.
|
||||
# This script is documentation more than anything else.
|
||||
#
|
||||
# * asm_${GOOS}_${GOARCH}.s
|
||||
#
|
||||
# This hand-written assembly file implements system call dispatch.
|
||||
# There are three entry points:
|
||||
#
|
||||
# func Syscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr);
|
||||
# func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr);
|
||||
# func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr);
|
||||
#
|
||||
# The first and second are the standard ones; they differ only in
|
||||
# how many arguments can be passed to the kernel.
|
||||
# The third is for low-level use by the ForkExec wrapper;
|
||||
# unlike the first two, it does not call into the scheduler to
|
||||
# let it know that a system call is running.
|
||||
#
|
||||
# * syscall_${GOOS}.go
|
||||
#
|
||||
# This hand-written Go file implements system calls that need
|
||||
# special handling and lists "//sys" comments giving prototypes
|
||||
# for ones that can be auto-generated. Mksyscall reads those
|
||||
# comments to generate the stubs.
|
||||
#
|
||||
# * syscall_${GOOS}_${GOARCH}.go
|
||||
#
|
||||
# Same as syscall_${GOOS}.go except that it contains code specific
|
||||
# to ${GOOS} on one particular architecture.
|
||||
#
|
||||
# * types_${GOOS}.c
|
||||
#
|
||||
# This hand-written C file includes standard C headers and then
|
||||
# creates typedef or enum names beginning with a dollar sign
|
||||
# (use of $ in variable names is a gcc extension). The hardest
|
||||
# part about preparing this file is figuring out which headers to
|
||||
# include and which symbols need to be #defined to get the
|
||||
# actual data structures that pass through to the kernel system calls.
|
||||
# Some C libraries present alternate versions for binary compatibility
|
||||
# and translate them on the way in and out of system calls, but
|
||||
# there is almost always a #define that can get the real ones.
|
||||
# See types_darwin.c and types_linux.c for examples.
|
||||
#
|
||||
# * zerror_${GOOS}_${GOARCH}.go
|
||||
#
|
||||
# This machine-generated file defines the system's error numbers,
|
||||
# error strings, and signal numbers. The generator is "mkerrors.sh".
|
||||
# Usually no arguments are needed, but mkerrors.sh will pass its
|
||||
# arguments on to godefs.
|
||||
#
|
||||
# * zsyscall_${GOOS}_${GOARCH}.go
|
||||
#
|
||||
# Generated by mksyscall.pl; see syscall_${GOOS}.go above.
|
||||
#
|
||||
# * zsysnum_${GOOS}_${GOARCH}.go
|
||||
#
|
||||
# Generated by mksysnum_${GOOS}.
|
||||
#
|
||||
# * ztypes_${GOOS}_${GOARCH}.go
|
||||
#
|
||||
# Generated by godefs; see types_${GOOS}.c above.
|
||||
|
||||
GOOSARCH="${GOOS}_${GOARCH}"
|
||||
|
||||
# defaults
|
||||
mksyscall="go run mksyscall.go"
|
||||
mkerrors="./mkerrors.sh"
|
||||
zerrors="zerrors_$GOOSARCH.go"
|
||||
mksysctl=""
|
||||
zsysctl="zsysctl_$GOOSARCH.go"
|
||||
mksysnum=
|
||||
mktypes=
|
||||
run="sh"
|
||||
|
||||
case "$1" in
|
||||
-syscalls)
|
||||
for i in zsyscall*go
|
||||
do
|
||||
sed 1q $i | sed 's;^// ;;' | sh > _$i && gofmt < _$i > $i
|
||||
rm _$i
|
||||
done
|
||||
exit 0
|
||||
;;
|
||||
-n)
|
||||
run="cat"
|
||||
shift
|
||||
esac
|
||||
|
||||
case "$#" in
|
||||
0)
|
||||
;;
|
||||
*)
|
||||
echo 'usage: mkall.sh [-n]' 1>&2
|
||||
exit 2
|
||||
esac
|
||||
|
||||
case "$GOOSARCH" in
|
||||
_* | *_ | _)
|
||||
echo 'undefined $GOOS_$GOARCH:' "$GOOSARCH" 1>&2
|
||||
exit 1
|
||||
;;
|
||||
plan9_386)
|
||||
mkerrors=
|
||||
mksyscall="go run mksyscall.go -l32 -plan9 -tags plan9,386"
|
||||
mksysnum="./mksysnum_plan9.sh /n/sources/plan9/sys/src/libc/9syscall/sys.h"
|
||||
mktypes="XXX"
|
||||
;;
|
||||
plan9_amd64)
|
||||
mkerrors=
|
||||
mksyscall="go run mksyscall.go -l32 -plan9 -tags plan9,amd64"
|
||||
mksysnum="./mksysnum_plan9.sh /n/sources/plan9/sys/src/libc/9syscall/sys.h"
|
||||
mktypes="XXX"
|
||||
;;
|
||||
plan9_arm)
|
||||
mkerrors=
|
||||
mksyscall="go run mksyscall.go -l32 -plan9 -tags plan9,arm"
|
||||
mksysnum="./mksysnum_plan9.sh /n/sources/plan9/sys/src/libc/9syscall/sys.h"
|
||||
mktypes="XXX"
|
||||
;;
|
||||
*)
|
||||
echo 'unrecognized $GOOS_$GOARCH: ' "$GOOSARCH" 1>&2
|
||||
exit 1
|
||||
;;
|
||||
esac
|
||||
|
||||
(
|
||||
if [ -n "$mkerrors" ]; then echo "$mkerrors |gofmt >$zerrors"; fi
|
||||
case "$GOOS" in
|
||||
plan9)
|
||||
syscall_goos="syscall_$GOOS.go"
|
||||
if [ -n "$mksyscall" ]; then echo "$mksyscall $syscall_goos |gofmt >zsyscall_$GOOSARCH.go"; fi
|
||||
;;
|
||||
esac
|
||||
if [ -n "$mksysctl" ]; then echo "$mksysctl |gofmt >$zsysctl"; fi
|
||||
if [ -n "$mksysnum" ]; then echo "$mksysnum |gofmt >zsysnum_$GOOSARCH.go"; fi
|
||||
if [ -n "$mktypes" ]; then echo "$mktypes types_$GOOS.go |gofmt >ztypes_$GOOSARCH.go"; fi
|
||||
) | $run
|
|
@ -0,0 +1,246 @@
|
|||
#!/usr/bin/env bash
|
||||
# Copyright 2009 The Go Authors. All rights reserved.
|
||||
# Use of this source code is governed by a BSD-style
|
||||
# license that can be found in the LICENSE file.
|
||||
|
||||
# Generate Go code listing errors and other #defined constant
|
||||
# values (ENAMETOOLONG etc.), by asking the preprocessor
|
||||
# about the definitions.
|
||||
|
||||
unset LANG
|
||||
export LC_ALL=C
|
||||
export LC_CTYPE=C
|
||||
|
||||
CC=${CC:-gcc}
|
||||
|
||||
uname=$(uname)
|
||||
|
||||
includes='
|
||||
#include <sys/types.h>
|
||||
#include <sys/file.h>
|
||||
#include <fcntl.h>
|
||||
#include <dirent.h>
|
||||
#include <sys/socket.h>
|
||||
#include <netinet/in.h>
|
||||
#include <netinet/ip.h>
|
||||
#include <netinet/ip6.h>
|
||||
#include <netinet/tcp.h>
|
||||
#include <errno.h>
|
||||
#include <sys/signal.h>
|
||||
#include <signal.h>
|
||||
#include <sys/resource.h>
|
||||
'
|
||||
|
||||
ccflags="$@"
|
||||
|
||||
# Write go tool cgo -godefs input.
|
||||
(
|
||||
echo package plan9
|
||||
echo
|
||||
echo '/*'
|
||||
indirect="includes_$(uname)"
|
||||
echo "${!indirect} $includes"
|
||||
echo '*/'
|
||||
echo 'import "C"'
|
||||
echo
|
||||
echo 'const ('
|
||||
|
||||
# The gcc command line prints all the #defines
|
||||
# it encounters while processing the input
|
||||
echo "${!indirect} $includes" | $CC -x c - -E -dM $ccflags |
|
||||
awk '
|
||||
$1 != "#define" || $2 ~ /\(/ || $3 == "" {next}
|
||||
|
||||
$2 ~ /^E([ABCD]X|[BIS]P|[SD]I|S|FL)$/ {next} # 386 registers
|
||||
$2 ~ /^(SIGEV_|SIGSTKSZ|SIGRT(MIN|MAX))/ {next}
|
||||
$2 ~ /^(SCM_SRCRT)$/ {next}
|
||||
$2 ~ /^(MAP_FAILED)$/ {next}
|
||||
|
||||
$2 !~ /^ETH_/ &&
|
||||
$2 !~ /^EPROC_/ &&
|
||||
$2 !~ /^EQUIV_/ &&
|
||||
$2 !~ /^EXPR_/ &&
|
||||
$2 ~ /^E[A-Z0-9_]+$/ ||
|
||||
$2 ~ /^B[0-9_]+$/ ||
|
||||
$2 ~ /^V[A-Z0-9]+$/ ||
|
||||
$2 ~ /^CS[A-Z0-9]/ ||
|
||||
$2 ~ /^I(SIG|CANON|CRNL|EXTEN|MAXBEL|STRIP|UTF8)$/ ||
|
||||
$2 ~ /^IGN/ ||
|
||||
$2 ~ /^IX(ON|ANY|OFF)$/ ||
|
||||
$2 ~ /^IN(LCR|PCK)$/ ||
|
||||
$2 ~ /(^FLU?SH)|(FLU?SH$)/ ||
|
||||
$2 ~ /^C(LOCAL|READ)$/ ||
|
||||
$2 == "BRKINT" ||
|
||||
$2 == "HUPCL" ||
|
||||
$2 == "PENDIN" ||
|
||||
$2 == "TOSTOP" ||
|
||||
$2 ~ /^PAR/ ||
|
||||
$2 ~ /^SIG[^_]/ ||
|
||||
$2 ~ /^O[CNPFP][A-Z]+[^_][A-Z]+$/ ||
|
||||
$2 ~ /^IN_/ ||
|
||||
$2 ~ /^LOCK_(SH|EX|NB|UN)$/ ||
|
||||
$2 ~ /^(AF|SOCK|SO|SOL|IPPROTO|IP|IPV6|ICMP6|TCP|EVFILT|NOTE|EV|SHUT|PROT|MAP|PACKET|MSG|SCM|MCL|DT|MADV|PR)_/ ||
|
||||
$2 == "ICMPV6_FILTER" ||
|
||||
$2 == "SOMAXCONN" ||
|
||||
$2 == "NAME_MAX" ||
|
||||
$2 == "IFNAMSIZ" ||
|
||||
$2 ~ /^CTL_(MAXNAME|NET|QUERY)$/ ||
|
||||
$2 ~ /^SYSCTL_VERS/ ||
|
||||
$2 ~ /^(MS|MNT)_/ ||
|
||||
$2 ~ /^TUN(SET|GET|ATTACH|DETACH)/ ||
|
||||
$2 ~ /^(O|F|FD|NAME|S|PTRACE|PT)_/ ||
|
||||
$2 ~ /^LINUX_REBOOT_CMD_/ ||
|
||||
$2 ~ /^LINUX_REBOOT_MAGIC[12]$/ ||
|
||||
$2 !~ "NLA_TYPE_MASK" &&
|
||||
$2 ~ /^(NETLINK|NLM|NLMSG|NLA|IFA|IFAN|RT|RTCF|RTN|RTPROT|RTNH|ARPHRD|ETH_P)_/ ||
|
||||
$2 ~ /^SIOC/ ||
|
||||
$2 ~ /^TIOC/ ||
|
||||
$2 !~ "RTF_BITS" &&
|
||||
$2 ~ /^(IFF|IFT|NET_RT|RTM|RTF|RTV|RTA|RTAX)_/ ||
|
||||
$2 ~ /^BIOC/ ||
|
||||
$2 ~ /^RUSAGE_(SELF|CHILDREN|THREAD)/ ||
|
||||
$2 ~ /^RLIMIT_(AS|CORE|CPU|DATA|FSIZE|NOFILE|STACK)|RLIM_INFINITY/ ||
|
||||
$2 ~ /^PRIO_(PROCESS|PGRP|USER)/ ||
|
||||
$2 ~ /^CLONE_[A-Z_]+/ ||
|
||||
$2 !~ /^(BPF_TIMEVAL)$/ &&
|
||||
$2 ~ /^(BPF|DLT)_/ ||
|
||||
$2 !~ "WMESGLEN" &&
|
||||
$2 ~ /^W[A-Z0-9]+$/ {printf("\t%s = C.%s\n", $2, $2)}
|
||||
$2 ~ /^__WCOREFLAG$/ {next}
|
||||
$2 ~ /^__W[A-Z0-9]+$/ {printf("\t%s = C.%s\n", substr($2,3), $2)}
|
||||
|
||||
{next}
|
||||
' | sort
|
||||
|
||||
echo ')'
|
||||
) >_const.go
|
||||
|
||||
# Pull out the error names for later.
|
||||
errors=$(
|
||||
echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags |
|
||||
awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print $2 }' |
|
||||
sort
|
||||
)
|
||||
|
||||
# Pull out the signal names for later.
|
||||
signals=$(
|
||||
echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
|
||||
awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print $2 }' |
|
||||
egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT)' |
|
||||
sort
|
||||
)
|
||||
|
||||
# Again, writing regexps to a file.
|
||||
echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags |
|
||||
awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print "^\t" $2 "[ \t]*=" }' |
|
||||
sort >_error.grep
|
||||
echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
|
||||
awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print "^\t" $2 "[ \t]*=" }' |
|
||||
egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT)' |
|
||||
sort >_signal.grep
|
||||
|
||||
echo '// mkerrors.sh' "$@"
|
||||
echo '// Code generated by the command above; DO NOT EDIT.'
|
||||
echo
|
||||
go tool cgo -godefs -- "$@" _const.go >_error.out
|
||||
cat _error.out | grep -vf _error.grep | grep -vf _signal.grep
|
||||
echo
|
||||
echo '// Errors'
|
||||
echo 'const ('
|
||||
cat _error.out | grep -f _error.grep | sed 's/=\(.*\)/= Errno(\1)/'
|
||||
echo ')'
|
||||
|
||||
echo
|
||||
echo '// Signals'
|
||||
echo 'const ('
|
||||
cat _error.out | grep -f _signal.grep | sed 's/=\(.*\)/= Signal(\1)/'
|
||||
echo ')'
|
||||
|
||||
# Run C program to print error and syscall strings.
|
||||
(
|
||||
echo -E "
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <errno.h>
|
||||
#include <ctype.h>
|
||||
#include <string.h>
|
||||
#include <signal.h>
|
||||
|
||||
#define nelem(x) (sizeof(x)/sizeof((x)[0]))
|
||||
|
||||
enum { A = 'A', Z = 'Z', a = 'a', z = 'z' }; // avoid need for single quotes below
|
||||
|
||||
int errors[] = {
|
||||
"
|
||||
for i in $errors
|
||||
do
|
||||
echo -E ' '$i,
|
||||
done
|
||||
|
||||
echo -E "
|
||||
};
|
||||
|
||||
int signals[] = {
|
||||
"
|
||||
for i in $signals
|
||||
do
|
||||
echo -E ' '$i,
|
||||
done
|
||||
|
||||
# Use -E because on some systems bash builtin interprets \n itself.
|
||||
echo -E '
|
||||
};
|
||||
|
||||
static int
|
||||
intcmp(const void *a, const void *b)
|
||||
{
|
||||
return *(int*)a - *(int*)b;
|
||||
}
|
||||
|
||||
int
|
||||
main(void)
|
||||
{
|
||||
int i, j, e;
|
||||
char buf[1024], *p;
|
||||
|
||||
printf("\n\n// Error table\n");
|
||||
printf("var errors = [...]string {\n");
|
||||
qsort(errors, nelem(errors), sizeof errors[0], intcmp);
|
||||
for(i=0; i<nelem(errors); i++) {
|
||||
e = errors[i];
|
||||
if(i > 0 && errors[i-1] == e)
|
||||
continue;
|
||||
strcpy(buf, strerror(e));
|
||||
// lowercase first letter: Bad -> bad, but STREAM -> STREAM.
|
||||
if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z)
|
||||
buf[0] += a - A;
|
||||
printf("\t%d: \"%s\",\n", e, buf);
|
||||
}
|
||||
printf("}\n\n");
|
||||
|
||||
printf("\n\n// Signal table\n");
|
||||
printf("var signals = [...]string {\n");
|
||||
qsort(signals, nelem(signals), sizeof signals[0], intcmp);
|
||||
for(i=0; i<nelem(signals); i++) {
|
||||
e = signals[i];
|
||||
if(i > 0 && signals[i-1] == e)
|
||||
continue;
|
||||
strcpy(buf, strsignal(e));
|
||||
// lowercase first letter: Bad -> bad, but STREAM -> STREAM.
|
||||
if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z)
|
||||
buf[0] += a - A;
|
||||
// cut trailing : number.
|
||||
p = strrchr(buf, ":"[0]);
|
||||
if(p)
|
||||
*p = '\0';
|
||||
printf("\t%d: \"%s\",\n", e, buf);
|
||||
}
|
||||
printf("}\n\n");
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
'
|
||||
) >_errors.c
|
||||
|
||||
$CC $ccflags -o _errors _errors.c && $GORUN ./_errors && rm -f _errors.c _errors _const.go _error.grep _signal.grep _error.out
|
|
@ -0,0 +1,393 @@
|
|||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build ignore
|
||||
|
||||
/*
|
||||
This program reads a file containing function prototypes
|
||||
(like syscall_plan9.go) and generates system call bodies.
|
||||
The prototypes are marked by lines beginning with "//sys"
|
||||
and read like func declarations if //sys is replaced by func, but:
|
||||
* The parameter lists must give a name for each argument.
|
||||
This includes return parameters.
|
||||
* The parameter lists must give a type for each argument:
|
||||
the (x, y, z int) shorthand is not allowed.
|
||||
* If the return parameter is an error number, it must be named errno.
|
||||
|
||||
A line beginning with //sysnb is like //sys, except that the
|
||||
goroutine will not be suspended during the execution of the system
|
||||
call. This must only be used for system calls which can never
|
||||
block, as otherwise the system call could cause all goroutines to
|
||||
hang.
|
||||
*/
|
||||
package main
|
||||
|
||||
import (
|
||||
"bufio"
|
||||
"flag"
|
||||
"fmt"
|
||||
"os"
|
||||
"regexp"
|
||||
"strings"
|
||||
)
|
||||
|
||||
var (
|
||||
b32 = flag.Bool("b32", false, "32bit big-endian")
|
||||
l32 = flag.Bool("l32", false, "32bit little-endian")
|
||||
plan9 = flag.Bool("plan9", false, "plan9")
|
||||
openbsd = flag.Bool("openbsd", false, "openbsd")
|
||||
netbsd = flag.Bool("netbsd", false, "netbsd")
|
||||
dragonfly = flag.Bool("dragonfly", false, "dragonfly")
|
||||
arm = flag.Bool("arm", false, "arm") // 64-bit value should use (even, odd)-pair
|
||||
tags = flag.String("tags", "", "build tags")
|
||||
filename = flag.String("output", "", "output file name (standard output if omitted)")
|
||||
)
|
||||
|
||||
// cmdLine returns this programs's commandline arguments
|
||||
func cmdLine() string {
|
||||
return "go run mksyscall.go " + strings.Join(os.Args[1:], " ")
|
||||
}
|
||||
|
||||
// buildTags returns build tags
|
||||
func buildTags() string {
|
||||
return *tags
|
||||
}
|
||||
|
||||
// Param is function parameter
|
||||
type Param struct {
|
||||
Name string
|
||||
Type string
|
||||
}
|
||||
|
||||
// usage prints the program usage
|
||||
func usage() {
|
||||
fmt.Fprintf(os.Stderr, "usage: go run mksyscall.go [-b32 | -l32] [-tags x,y] [file ...]\n")
|
||||
os.Exit(1)
|
||||
}
|
||||
|
||||
// parseParamList parses parameter list and returns a slice of parameters
|
||||
func parseParamList(list string) []string {
|
||||
list = strings.TrimSpace(list)
|
||||
if list == "" {
|
||||
return []string{}
|
||||
}
|
||||
return regexp.MustCompile(`\s*,\s*`).Split(list, -1)
|
||||
}
|
||||
|
||||
// parseParam splits a parameter into name and type
|
||||
func parseParam(p string) Param {
|
||||
ps := regexp.MustCompile(`^(\S*) (\S*)$`).FindStringSubmatch(p)
|
||||
if ps == nil {
|
||||
fmt.Fprintf(os.Stderr, "malformed parameter: %s\n", p)
|
||||
os.Exit(1)
|
||||
}
|
||||
return Param{ps[1], ps[2]}
|
||||
}
|
||||
|
||||
func main() {
|
||||
// Get the OS and architecture (using GOARCH_TARGET if it exists)
|
||||
goos := os.Getenv("GOOS")
|
||||
goarch := os.Getenv("GOARCH_TARGET")
|
||||
if goarch == "" {
|
||||
goarch = os.Getenv("GOARCH")
|
||||
}
|
||||
|
||||
// Check that we are using the Docker-based build system if we should
|
||||
if goos == "linux" {
|
||||
if os.Getenv("GOLANG_SYS_BUILD") != "docker" {
|
||||
fmt.Fprintf(os.Stderr, "In the Docker-based build system, mksyscall should not be called directly.\n")
|
||||
fmt.Fprintf(os.Stderr, "See README.md\n")
|
||||
os.Exit(1)
|
||||
}
|
||||
}
|
||||
|
||||
flag.Usage = usage
|
||||
flag.Parse()
|
||||
if len(flag.Args()) <= 0 {
|
||||
fmt.Fprintf(os.Stderr, "no files to parse provided\n")
|
||||
usage()
|
||||
}
|
||||
|
||||
endianness := ""
|
||||
if *b32 {
|
||||
endianness = "big-endian"
|
||||
} else if *l32 {
|
||||
endianness = "little-endian"
|
||||
}
|
||||
|
||||
libc := false
|
||||
if goos == "darwin" && strings.Contains(buildTags(), ",go1.12") {
|
||||
libc = true
|
||||
}
|
||||
trampolines := map[string]bool{}
|
||||
|
||||
text := ""
|
||||
for _, path := range flag.Args() {
|
||||
file, err := os.Open(path)
|
||||
if err != nil {
|
||||
fmt.Fprintf(os.Stderr, err.Error())
|
||||
os.Exit(1)
|
||||
}
|
||||
s := bufio.NewScanner(file)
|
||||
for s.Scan() {
|
||||
t := s.Text()
|
||||
t = strings.TrimSpace(t)
|
||||
t = regexp.MustCompile(`\s+`).ReplaceAllString(t, ` `)
|
||||
nonblock := regexp.MustCompile(`^\/\/sysnb `).FindStringSubmatch(t)
|
||||
if regexp.MustCompile(`^\/\/sys `).FindStringSubmatch(t) == nil && nonblock == nil {
|
||||
continue
|
||||
}
|
||||
|
||||
// Line must be of the form
|
||||
// func Open(path string, mode int, perm int) (fd int, errno error)
|
||||
// Split into name, in params, out params.
|
||||
f := regexp.MustCompile(`^\/\/sys(nb)? (\w+)\(([^()]*)\)\s*(?:\(([^()]+)\))?\s*(?:=\s*((?i)SYS_[A-Z0-9_]+))?$`).FindStringSubmatch(t)
|
||||
if f == nil {
|
||||
fmt.Fprintf(os.Stderr, "%s:%s\nmalformed //sys declaration\n", path, t)
|
||||
os.Exit(1)
|
||||
}
|
||||
funct, inps, outps, sysname := f[2], f[3], f[4], f[5]
|
||||
|
||||
// Split argument lists on comma.
|
||||
in := parseParamList(inps)
|
||||
out := parseParamList(outps)
|
||||
|
||||
// Try in vain to keep people from editing this file.
|
||||
// The theory is that they jump into the middle of the file
|
||||
// without reading the header.
|
||||
text += "// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT\n\n"
|
||||
|
||||
// Go function header.
|
||||
outDecl := ""
|
||||
if len(out) > 0 {
|
||||
outDecl = fmt.Sprintf(" (%s)", strings.Join(out, ", "))
|
||||
}
|
||||
text += fmt.Sprintf("func %s(%s)%s {\n", funct, strings.Join(in, ", "), outDecl)
|
||||
|
||||
// Check if err return available
|
||||
errvar := ""
|
||||
for _, param := range out {
|
||||
p := parseParam(param)
|
||||
if p.Type == "error" {
|
||||
errvar = p.Name
|
||||
break
|
||||
}
|
||||
}
|
||||
|
||||
// Prepare arguments to Syscall.
|
||||
var args []string
|
||||
n := 0
|
||||
for _, param := range in {
|
||||
p := parseParam(param)
|
||||
if regexp.MustCompile(`^\*`).FindStringSubmatch(p.Type) != nil {
|
||||
args = append(args, "uintptr(unsafe.Pointer("+p.Name+"))")
|
||||
} else if p.Type == "string" && errvar != "" {
|
||||
text += fmt.Sprintf("\tvar _p%d *byte\n", n)
|
||||
text += fmt.Sprintf("\t_p%d, %s = BytePtrFromString(%s)\n", n, errvar, p.Name)
|
||||
text += fmt.Sprintf("\tif %s != nil {\n\t\treturn\n\t}\n", errvar)
|
||||
args = append(args, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n))
|
||||
n++
|
||||
} else if p.Type == "string" {
|
||||
fmt.Fprintf(os.Stderr, path+":"+funct+" uses string arguments, but has no error return\n")
|
||||
text += fmt.Sprintf("\tvar _p%d *byte\n", n)
|
||||
text += fmt.Sprintf("\t_p%d, _ = BytePtrFromString(%s)\n", n, p.Name)
|
||||
args = append(args, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n))
|
||||
n++
|
||||
} else if regexp.MustCompile(`^\[\](.*)`).FindStringSubmatch(p.Type) != nil {
|
||||
// Convert slice into pointer, length.
|
||||
// Have to be careful not to take address of &a[0] if len == 0:
|
||||
// pass dummy pointer in that case.
|
||||
// Used to pass nil, but some OSes or simulators reject write(fd, nil, 0).
|
||||
text += fmt.Sprintf("\tvar _p%d unsafe.Pointer\n", n)
|
||||
text += fmt.Sprintf("\tif len(%s) > 0 {\n\t\t_p%d = unsafe.Pointer(&%s[0])\n\t}", p.Name, n, p.Name)
|
||||
text += fmt.Sprintf(" else {\n\t\t_p%d = unsafe.Pointer(&_zero)\n\t}\n", n)
|
||||
args = append(args, fmt.Sprintf("uintptr(_p%d)", n), fmt.Sprintf("uintptr(len(%s))", p.Name))
|
||||
n++
|
||||
} else if p.Type == "int64" && (*openbsd || *netbsd) {
|
||||
args = append(args, "0")
|
||||
if endianness == "big-endian" {
|
||||
args = append(args, fmt.Sprintf("uintptr(%s>>32)", p.Name), fmt.Sprintf("uintptr(%s)", p.Name))
|
||||
} else if endianness == "little-endian" {
|
||||
args = append(args, fmt.Sprintf("uintptr(%s)", p.Name), fmt.Sprintf("uintptr(%s>>32)", p.Name))
|
||||
} else {
|
||||
args = append(args, fmt.Sprintf("uintptr(%s)", p.Name))
|
||||
}
|
||||
} else if p.Type == "int64" && *dragonfly {
|
||||
if regexp.MustCompile(`^(?i)extp(read|write)`).FindStringSubmatch(funct) == nil {
|
||||
args = append(args, "0")
|
||||
}
|
||||
if endianness == "big-endian" {
|
||||
args = append(args, fmt.Sprintf("uintptr(%s>>32)", p.Name), fmt.Sprintf("uintptr(%s)", p.Name))
|
||||
} else if endianness == "little-endian" {
|
||||
args = append(args, fmt.Sprintf("uintptr(%s)", p.Name), fmt.Sprintf("uintptr(%s>>32)", p.Name))
|
||||
} else {
|
||||
args = append(args, fmt.Sprintf("uintptr(%s)", p.Name))
|
||||
}
|
||||
} else if p.Type == "int64" && endianness != "" {
|
||||
if len(args)%2 == 1 && *arm {
|
||||
// arm abi specifies 64-bit argument uses
|
||||
// (even, odd) pair
|
||||
args = append(args, "0")
|
||||
}
|
||||
if endianness == "big-endian" {
|
||||
args = append(args, fmt.Sprintf("uintptr(%s>>32)", p.Name), fmt.Sprintf("uintptr(%s)", p.Name))
|
||||
} else {
|
||||
args = append(args, fmt.Sprintf("uintptr(%s)", p.Name), fmt.Sprintf("uintptr(%s>>32)", p.Name))
|
||||
}
|
||||
} else {
|
||||
args = append(args, fmt.Sprintf("uintptr(%s)", p.Name))
|
||||
}
|
||||
}
|
||||
|
||||
// Determine which form to use; pad args with zeros.
|
||||
asm := "Syscall"
|
||||
if nonblock != nil {
|
||||
if errvar == "" && goos == "linux" {
|
||||
asm = "RawSyscallNoError"
|
||||
} else {
|
||||
asm = "RawSyscall"
|
||||
}
|
||||
} else {
|
||||
if errvar == "" && goos == "linux" {
|
||||
asm = "SyscallNoError"
|
||||
}
|
||||
}
|
||||
if len(args) <= 3 {
|
||||
for len(args) < 3 {
|
||||
args = append(args, "0")
|
||||
}
|
||||
} else if len(args) <= 6 {
|
||||
asm += "6"
|
||||
for len(args) < 6 {
|
||||
args = append(args, "0")
|
||||
}
|
||||
} else if len(args) <= 9 {
|
||||
asm += "9"
|
||||
for len(args) < 9 {
|
||||
args = append(args, "0")
|
||||
}
|
||||
} else {
|
||||
fmt.Fprintf(os.Stderr, "%s:%s too many arguments to system call\n", path, funct)
|
||||
}
|
||||
|
||||
// System call number.
|
||||
if sysname == "" {
|
||||
sysname = "SYS_" + funct
|
||||
sysname = regexp.MustCompile(`([a-z])([A-Z])`).ReplaceAllString(sysname, `${1}_$2`)
|
||||
sysname = strings.ToUpper(sysname)
|
||||
}
|
||||
|
||||
var libcFn string
|
||||
if libc {
|
||||
asm = "syscall_" + strings.ToLower(asm[:1]) + asm[1:] // internal syscall call
|
||||
sysname = strings.TrimPrefix(sysname, "SYS_") // remove SYS_
|
||||
sysname = strings.ToLower(sysname) // lowercase
|
||||
if sysname == "getdirentries64" {
|
||||
// Special case - libSystem name and
|
||||
// raw syscall name don't match.
|
||||
sysname = "__getdirentries64"
|
||||
}
|
||||
libcFn = sysname
|
||||
sysname = "funcPC(libc_" + sysname + "_trampoline)"
|
||||
}
|
||||
|
||||
// Actual call.
|
||||
arglist := strings.Join(args, ", ")
|
||||
call := fmt.Sprintf("%s(%s, %s)", asm, sysname, arglist)
|
||||
|
||||
// Assign return values.
|
||||
body := ""
|
||||
ret := []string{"_", "_", "_"}
|
||||
doErrno := false
|
||||
for i := 0; i < len(out); i++ {
|
||||
p := parseParam(out[i])
|
||||
reg := ""
|
||||
if p.Name == "err" && !*plan9 {
|
||||
reg = "e1"
|
||||
ret[2] = reg
|
||||
doErrno = true
|
||||
} else if p.Name == "err" && *plan9 {
|
||||
ret[0] = "r0"
|
||||
ret[2] = "e1"
|
||||
break
|
||||
} else {
|
||||
reg = fmt.Sprintf("r%d", i)
|
||||
ret[i] = reg
|
||||
}
|
||||
if p.Type == "bool" {
|
||||
reg = fmt.Sprintf("%s != 0", reg)
|
||||
}
|
||||
if p.Type == "int64" && endianness != "" {
|
||||
// 64-bit number in r1:r0 or r0:r1.
|
||||
if i+2 > len(out) {
|
||||
fmt.Fprintf(os.Stderr, "%s:%s not enough registers for int64 return\n", path, funct)
|
||||
}
|
||||
if endianness == "big-endian" {
|
||||
reg = fmt.Sprintf("int64(r%d)<<32 | int64(r%d)", i, i+1)
|
||||
} else {
|
||||
reg = fmt.Sprintf("int64(r%d)<<32 | int64(r%d)", i+1, i)
|
||||
}
|
||||
ret[i] = fmt.Sprintf("r%d", i)
|
||||
ret[i+1] = fmt.Sprintf("r%d", i+1)
|
||||
}
|
||||
if reg != "e1" || *plan9 {
|
||||
body += fmt.Sprintf("\t%s = %s(%s)\n", p.Name, p.Type, reg)
|
||||
}
|
||||
}
|
||||
if ret[0] == "_" && ret[1] == "_" && ret[2] == "_" {
|
||||
text += fmt.Sprintf("\t%s\n", call)
|
||||
} else {
|
||||
if errvar == "" && goos == "linux" {
|
||||
// raw syscall without error on Linux, see golang.org/issue/22924
|
||||
text += fmt.Sprintf("\t%s, %s := %s\n", ret[0], ret[1], call)
|
||||
} else {
|
||||
text += fmt.Sprintf("\t%s, %s, %s := %s\n", ret[0], ret[1], ret[2], call)
|
||||
}
|
||||
}
|
||||
text += body
|
||||
|
||||
if *plan9 && ret[2] == "e1" {
|
||||
text += "\tif int32(r0) == -1 {\n"
|
||||
text += "\t\terr = e1\n"
|
||||
text += "\t}\n"
|
||||
} else if doErrno {
|
||||
text += "\tif e1 != 0 {\n"
|
||||
text += "\t\terr = errnoErr(e1)\n"
|
||||
text += "\t}\n"
|
||||
}
|
||||
text += "\treturn\n"
|
||||
text += "}\n\n"
|
||||
|
||||
if libc && !trampolines[libcFn] {
|
||||
// some system calls share a trampoline, like read and readlen.
|
||||
trampolines[libcFn] = true
|
||||
// Declare assembly trampoline.
|
||||
text += fmt.Sprintf("func libc_%s_trampoline()\n", libcFn)
|
||||
// Assembly trampoline calls the libc_* function, which this magic
|
||||
// redirects to use the function from libSystem.
|
||||
text += fmt.Sprintf("//go:linkname libc_%s libc_%s\n", libcFn, libcFn)
|
||||
text += fmt.Sprintf("//go:cgo_import_dynamic libc_%s %s \"/usr/lib/libSystem.B.dylib\"\n", libcFn, libcFn)
|
||||
text += "\n"
|
||||
}
|
||||
}
|
||||
if err := s.Err(); err != nil {
|
||||
fmt.Fprintf(os.Stderr, err.Error())
|
||||
os.Exit(1)
|
||||
}
|
||||
file.Close()
|
||||
}
|
||||
fmt.Printf(srcTemplate, cmdLine(), buildTags(), text)
|
||||
}
|
||||
|
||||
const srcTemplate = `// %s
|
||||
// Code generated by the command above; see README.md. DO NOT EDIT.
|
||||
|
||||
// +build %s
|
||||
|
||||
package plan9
|
||||
|
||||
import "unsafe"
|
||||
|
||||
%s
|
||||
`
|
|
@ -0,0 +1,23 @@
|
|||
#!/bin/sh
|
||||
# Copyright 2009 The Go Authors. All rights reserved.
|
||||
# Use of this source code is governed by a BSD-style
|
||||
# license that can be found in the LICENSE file.
|
||||
|
||||
COMMAND="mksysnum_plan9.sh $@"
|
||||
|
||||
cat <<EOF
|
||||
// $COMMAND
|
||||
// MACHINE GENERATED BY THE ABOVE COMMAND; DO NOT EDIT
|
||||
|
||||
package plan9
|
||||
|
||||
const(
|
||||
EOF
|
||||
|
||||
SP='[ ]' # space or tab
|
||||
sed "s/^#define${SP}\\([A-Z0-9_][A-Z0-9_]*\\)${SP}${SP}*\\([0-9][0-9]*\\)/SYS_\\1=\\2/g" \
|
||||
< $1 | grep -v SYS__
|
||||
|
||||
cat <<EOF
|
||||
)
|
||||
EOF
|
|
@ -0,0 +1,21 @@
|
|||
// Copyright 2015 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build go1.5
|
||||
|
||||
package plan9
|
||||
|
||||
import "syscall"
|
||||
|
||||
func fixwd() {
|
||||
syscall.Fixwd()
|
||||
}
|
||||
|
||||
func Getwd() (wd string, err error) {
|
||||
return syscall.Getwd()
|
||||
}
|
||||
|
||||
func Chdir(path string) error {
|
||||
return syscall.Chdir(path)
|
||||
}
|
|
@ -0,0 +1,23 @@
|
|||
// Copyright 2015 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build !go1.5
|
||||
|
||||
package plan9
|
||||
|
||||
func fixwd() {
|
||||
}
|
||||
|
||||
func Getwd() (wd string, err error) {
|
||||
fd, err := open(".", O_RDONLY)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
defer Close(fd)
|
||||
return Fd2path(fd)
|
||||
}
|
||||
|
||||
func Chdir(path string) error {
|
||||
return chdir(path)
|
||||
}
|
|
@ -0,0 +1,30 @@
|
|||
// Copyright 2012 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build plan9,race
|
||||
|
||||
package plan9
|
||||
|
||||
import (
|
||||
"runtime"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
const raceenabled = true
|
||||
|
||||
func raceAcquire(addr unsafe.Pointer) {
|
||||
runtime.RaceAcquire(addr)
|
||||
}
|
||||
|
||||
func raceReleaseMerge(addr unsafe.Pointer) {
|
||||
runtime.RaceReleaseMerge(addr)
|
||||
}
|
||||
|
||||
func raceReadRange(addr unsafe.Pointer, len int) {
|
||||
runtime.RaceReadRange(addr, len)
|
||||
}
|
||||
|
||||
func raceWriteRange(addr unsafe.Pointer, len int) {
|
||||
runtime.RaceWriteRange(addr, len)
|
||||
}
|
|
@ -0,0 +1,25 @@
|
|||
// Copyright 2012 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build plan9,!race
|
||||
|
||||
package plan9
|
||||
|
||||
import (
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
const raceenabled = false
|
||||
|
||||
func raceAcquire(addr unsafe.Pointer) {
|
||||
}
|
||||
|
||||
func raceReleaseMerge(addr unsafe.Pointer) {
|
||||
}
|
||||
|
||||
func raceReadRange(addr unsafe.Pointer, len int) {
|
||||
}
|
||||
|
||||
func raceWriteRange(addr unsafe.Pointer, len int) {
|
||||
}
|
|
@ -0,0 +1,22 @@
|
|||
// Copyright 2009 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build plan9
|
||||
|
||||
package plan9
|
||||
|
||||
func itoa(val int) string { // do it here rather than with fmt to avoid dependency
|
||||
if val < 0 {
|
||||
return "-" + itoa(-val)
|
||||
}
|
||||
var buf [32]byte // big enough for int64
|
||||
i := len(buf) - 1
|
||||
for val >= 10 {
|
||||
buf[i] = byte(val%10 + '0')
|
||||
i--
|
||||
val /= 10
|
||||
}
|
||||
buf[i] = byte(val + '0')
|
||||
return string(buf[i:])
|
||||
}
|
|
@ -0,0 +1,116 @@
|
|||
// Copyright 2009 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build plan9
|
||||
|
||||
// Package plan9 contains an interface to the low-level operating system
|
||||
// primitives. OS details vary depending on the underlying system, and
|
||||
// by default, godoc will display the OS-specific documentation for the current
|
||||
// system. If you want godoc to display documentation for another
|
||||
// system, set $GOOS and $GOARCH to the desired system. For example, if
|
||||
// you want to view documentation for freebsd/arm on linux/amd64, set $GOOS
|
||||
// to freebsd and $GOARCH to arm.
|
||||
//
|
||||
// The primary use of this package is inside other packages that provide a more
|
||||
// portable interface to the system, such as "os", "time" and "net". Use
|
||||
// those packages rather than this one if you can.
|
||||
//
|
||||
// For details of the functions and data types in this package consult
|
||||
// the manuals for the appropriate operating system.
|
||||
//
|
||||
// These calls return err == nil to indicate success; otherwise
|
||||
// err represents an operating system error describing the failure and
|
||||
// holds a value of type syscall.ErrorString.
|
||||
package plan9 // import "golang.org/x/sys/plan9"
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"strings"
|
||||
"unsafe"
|
||||
|
||||
"golang.org/x/sys/internal/unsafeheader"
|
||||
)
|
||||
|
||||
// ByteSliceFromString returns a NUL-terminated slice of bytes
|
||||
// containing the text of s. If s contains a NUL byte at any
|
||||
// location, it returns (nil, EINVAL).
|
||||
func ByteSliceFromString(s string) ([]byte, error) {
|
||||
if strings.IndexByte(s, 0) != -1 {
|
||||
return nil, EINVAL
|
||||
}
|
||||
a := make([]byte, len(s)+1)
|
||||
copy(a, s)
|
||||
return a, nil
|
||||
}
|
||||
|
||||
// BytePtrFromString returns a pointer to a NUL-terminated array of
|
||||
// bytes containing the text of s. If s contains a NUL byte at any
|
||||
// location, it returns (nil, EINVAL).
|
||||
func BytePtrFromString(s string) (*byte, error) {
|
||||
a, err := ByteSliceFromString(s)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return &a[0], nil
|
||||
}
|
||||
|
||||
// ByteSliceToString returns a string form of the text represented by the slice s, with a terminating NUL and any
|
||||
// bytes after the NUL removed.
|
||||
func ByteSliceToString(s []byte) string {
|
||||
if i := bytes.IndexByte(s, 0); i != -1 {
|
||||
s = s[:i]
|
||||
}
|
||||
return string(s)
|
||||
}
|
||||
|
||||
// BytePtrToString takes a pointer to a sequence of text and returns the corresponding string.
|
||||
// If the pointer is nil, it returns the empty string. It assumes that the text sequence is terminated
|
||||
// at a zero byte; if the zero byte is not present, the program may crash.
|
||||
func BytePtrToString(p *byte) string {
|
||||
if p == nil {
|
||||
return ""
|
||||
}
|
||||
if *p == 0 {
|
||||
return ""
|
||||
}
|
||||
|
||||
// Find NUL terminator.
|
||||
n := 0
|
||||
for ptr := unsafe.Pointer(p); *(*byte)(ptr) != 0; n++ {
|
||||
ptr = unsafe.Pointer(uintptr(ptr) + 1)
|
||||
}
|
||||
|
||||
var s []byte
|
||||
h := (*unsafeheader.Slice)(unsafe.Pointer(&s))
|
||||
h.Data = unsafe.Pointer(p)
|
||||
h.Len = n
|
||||
h.Cap = n
|
||||
|
||||
return string(s)
|
||||
}
|
||||
|
||||
// Single-word zero for use when we need a valid pointer to 0 bytes.
|
||||
// See mksyscall.pl.
|
||||
var _zero uintptr
|
||||
|
||||
func (ts *Timespec) Unix() (sec int64, nsec int64) {
|
||||
return int64(ts.Sec), int64(ts.Nsec)
|
||||
}
|
||||
|
||||
func (tv *Timeval) Unix() (sec int64, nsec int64) {
|
||||
return int64(tv.Sec), int64(tv.Usec) * 1000
|
||||
}
|
||||
|
||||
func (ts *Timespec) Nano() int64 {
|
||||
return int64(ts.Sec)*1e9 + int64(ts.Nsec)
|
||||
}
|
||||
|
||||
func (tv *Timeval) Nano() int64 {
|
||||
return int64(tv.Sec)*1e9 + int64(tv.Usec)*1000
|
||||
}
|
||||
|
||||
// use is a no-op, but the compiler cannot see that it is.
|
||||
// Calling use(p) ensures that p is kept live until that point.
|
||||
//go:noescape
|
||||
func use(p unsafe.Pointer)
|
|
@ -0,0 +1,349 @@
|
|||
// Copyright 2011 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Plan 9 system calls.
|
||||
// This file is compiled as ordinary Go code,
|
||||
// but it is also input to mksyscall,
|
||||
// which parses the //sys lines and generates system call stubs.
|
||||
// Note that sometimes we use a lowercase //sys name and
|
||||
// wrap it in our own nicer implementation.
|
||||
|
||||
package plan9
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"syscall"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
// A Note is a string describing a process note.
|
||||
// It implements the os.Signal interface.
|
||||
type Note string
|
||||
|
||||
func (n Note) Signal() {}
|
||||
|
||||
func (n Note) String() string {
|
||||
return string(n)
|
||||
}
|
||||
|
||||
var (
|
||||
Stdin = 0
|
||||
Stdout = 1
|
||||
Stderr = 2
|
||||
)
|
||||
|
||||
// For testing: clients can set this flag to force
|
||||
// creation of IPv6 sockets to return EAFNOSUPPORT.
|
||||
var SocketDisableIPv6 bool
|
||||
|
||||
func Syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err syscall.ErrorString)
|
||||
func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.ErrorString)
|
||||
func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr)
|
||||
func RawSyscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr)
|
||||
|
||||
func atoi(b []byte) (n uint) {
|
||||
n = 0
|
||||
for i := 0; i < len(b); i++ {
|
||||
n = n*10 + uint(b[i]-'0')
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func cstring(s []byte) string {
|
||||
i := bytes.IndexByte(s, 0)
|
||||
if i == -1 {
|
||||
i = len(s)
|
||||
}
|
||||
return string(s[:i])
|
||||
}
|
||||
|
||||
func errstr() string {
|
||||
var buf [ERRMAX]byte
|
||||
|
||||
RawSyscall(SYS_ERRSTR, uintptr(unsafe.Pointer(&buf[0])), uintptr(len(buf)), 0)
|
||||
|
||||
buf[len(buf)-1] = 0
|
||||
return cstring(buf[:])
|
||||
}
|
||||
|
||||
// Implemented in assembly to import from runtime.
|
||||
func exit(code int)
|
||||
|
||||
func Exit(code int) { exit(code) }
|
||||
|
||||
func readnum(path string) (uint, error) {
|
||||
var b [12]byte
|
||||
|
||||
fd, e := Open(path, O_RDONLY)
|
||||
if e != nil {
|
||||
return 0, e
|
||||
}
|
||||
defer Close(fd)
|
||||
|
||||
n, e := Pread(fd, b[:], 0)
|
||||
|
||||
if e != nil {
|
||||
return 0, e
|
||||
}
|
||||
|
||||
m := 0
|
||||
for ; m < n && b[m] == ' '; m++ {
|
||||
}
|
||||
|
||||
return atoi(b[m : n-1]), nil
|
||||
}
|
||||
|
||||
func Getpid() (pid int) {
|
||||
n, _ := readnum("#c/pid")
|
||||
return int(n)
|
||||
}
|
||||
|
||||
func Getppid() (ppid int) {
|
||||
n, _ := readnum("#c/ppid")
|
||||
return int(n)
|
||||
}
|
||||
|
||||
func Read(fd int, p []byte) (n int, err error) {
|
||||
return Pread(fd, p, -1)
|
||||
}
|
||||
|
||||
func Write(fd int, p []byte) (n int, err error) {
|
||||
return Pwrite(fd, p, -1)
|
||||
}
|
||||
|
||||
var ioSync int64
|
||||
|
||||
//sys fd2path(fd int, buf []byte) (err error)
|
||||
func Fd2path(fd int) (path string, err error) {
|
||||
var buf [512]byte
|
||||
|
||||
e := fd2path(fd, buf[:])
|
||||
if e != nil {
|
||||
return "", e
|
||||
}
|
||||
return cstring(buf[:]), nil
|
||||
}
|
||||
|
||||
//sys pipe(p *[2]int32) (err error)
|
||||
func Pipe(p []int) (err error) {
|
||||
if len(p) != 2 {
|
||||
return syscall.ErrorString("bad arg in system call")
|
||||
}
|
||||
var pp [2]int32
|
||||
err = pipe(&pp)
|
||||
p[0] = int(pp[0])
|
||||
p[1] = int(pp[1])
|
||||
return
|
||||
}
|
||||
|
||||
// Underlying system call writes to newoffset via pointer.
|
||||
// Implemented in assembly to avoid allocation.
|
||||
func seek(placeholder uintptr, fd int, offset int64, whence int) (newoffset int64, err string)
|
||||
|
||||
func Seek(fd int, offset int64, whence int) (newoffset int64, err error) {
|
||||
newoffset, e := seek(0, fd, offset, whence)
|
||||
|
||||
if newoffset == -1 {
|
||||
err = syscall.ErrorString(e)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func Mkdir(path string, mode uint32) (err error) {
|
||||
fd, err := Create(path, O_RDONLY, DMDIR|mode)
|
||||
|
||||
if fd != -1 {
|
||||
Close(fd)
|
||||
}
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
type Waitmsg struct {
|
||||
Pid int
|
||||
Time [3]uint32
|
||||
Msg string
|
||||
}
|
||||
|
||||
func (w Waitmsg) Exited() bool { return true }
|
||||
func (w Waitmsg) Signaled() bool { return false }
|
||||
|
||||
func (w Waitmsg) ExitStatus() int {
|
||||
if len(w.Msg) == 0 {
|
||||
// a normal exit returns no message
|
||||
return 0
|
||||
}
|
||||
return 1
|
||||
}
|
||||
|
||||
//sys await(s []byte) (n int, err error)
|
||||
func Await(w *Waitmsg) (err error) {
|
||||
var buf [512]byte
|
||||
var f [5][]byte
|
||||
|
||||
n, err := await(buf[:])
|
||||
|
||||
if err != nil || w == nil {
|
||||
return
|
||||
}
|
||||
|
||||
nf := 0
|
||||
p := 0
|
||||
for i := 0; i < n && nf < len(f)-1; i++ {
|
||||
if buf[i] == ' ' {
|
||||
f[nf] = buf[p:i]
|
||||
p = i + 1
|
||||
nf++
|
||||
}
|
||||
}
|
||||
f[nf] = buf[p:]
|
||||
nf++
|
||||
|
||||
if nf != len(f) {
|
||||
return syscall.ErrorString("invalid wait message")
|
||||
}
|
||||
w.Pid = int(atoi(f[0]))
|
||||
w.Time[0] = uint32(atoi(f[1]))
|
||||
w.Time[1] = uint32(atoi(f[2]))
|
||||
w.Time[2] = uint32(atoi(f[3]))
|
||||
w.Msg = cstring(f[4])
|
||||
if w.Msg == "''" {
|
||||
// await() returns '' for no error
|
||||
w.Msg = ""
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func Unmount(name, old string) (err error) {
|
||||
fixwd()
|
||||
oldp, err := BytePtrFromString(old)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
oldptr := uintptr(unsafe.Pointer(oldp))
|
||||
|
||||
var r0 uintptr
|
||||
var e syscall.ErrorString
|
||||
|
||||
// bind(2) man page: If name is zero, everything bound or mounted upon old is unbound or unmounted.
|
||||
if name == "" {
|
||||
r0, _, e = Syscall(SYS_UNMOUNT, _zero, oldptr, 0)
|
||||
} else {
|
||||
namep, err := BytePtrFromString(name)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
r0, _, e = Syscall(SYS_UNMOUNT, uintptr(unsafe.Pointer(namep)), oldptr, 0)
|
||||
}
|
||||
|
||||
if int32(r0) == -1 {
|
||||
err = e
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func Fchdir(fd int) (err error) {
|
||||
path, err := Fd2path(fd)
|
||||
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
return Chdir(path)
|
||||
}
|
||||
|
||||
type Timespec struct {
|
||||
Sec int32
|
||||
Nsec int32
|
||||
}
|
||||
|
||||
type Timeval struct {
|
||||
Sec int32
|
||||
Usec int32
|
||||
}
|
||||
|
||||
func NsecToTimeval(nsec int64) (tv Timeval) {
|
||||
nsec += 999 // round up to microsecond
|
||||
tv.Usec = int32(nsec % 1e9 / 1e3)
|
||||
tv.Sec = int32(nsec / 1e9)
|
||||
return
|
||||
}
|
||||
|
||||
func nsec() int64 {
|
||||
var scratch int64
|
||||
|
||||
r0, _, _ := Syscall(SYS_NSEC, uintptr(unsafe.Pointer(&scratch)), 0, 0)
|
||||
// TODO(aram): remove hack after I fix _nsec in the pc64 kernel.
|
||||
if r0 == 0 {
|
||||
return scratch
|
||||
}
|
||||
return int64(r0)
|
||||
}
|
||||
|
||||
func Gettimeofday(tv *Timeval) error {
|
||||
nsec := nsec()
|
||||
*tv = NsecToTimeval(nsec)
|
||||
return nil
|
||||
}
|
||||
|
||||
func Getpagesize() int { return 0x1000 }
|
||||
|
||||
func Getegid() (egid int) { return -1 }
|
||||
func Geteuid() (euid int) { return -1 }
|
||||
func Getgid() (gid int) { return -1 }
|
||||
func Getuid() (uid int) { return -1 }
|
||||
|
||||
func Getgroups() (gids []int, err error) {
|
||||
return make([]int, 0), nil
|
||||
}
|
||||
|
||||
//sys open(path string, mode int) (fd int, err error)
|
||||
func Open(path string, mode int) (fd int, err error) {
|
||||
fixwd()
|
||||
return open(path, mode)
|
||||
}
|
||||
|
||||
//sys create(path string, mode int, perm uint32) (fd int, err error)
|
||||
func Create(path string, mode int, perm uint32) (fd int, err error) {
|
||||
fixwd()
|
||||
return create(path, mode, perm)
|
||||
}
|
||||
|
||||
//sys remove(path string) (err error)
|
||||
func Remove(path string) error {
|
||||
fixwd()
|
||||
return remove(path)
|
||||
}
|
||||
|
||||
//sys stat(path string, edir []byte) (n int, err error)
|
||||
func Stat(path string, edir []byte) (n int, err error) {
|
||||
fixwd()
|
||||
return stat(path, edir)
|
||||
}
|
||||
|
||||
//sys bind(name string, old string, flag int) (err error)
|
||||
func Bind(name string, old string, flag int) (err error) {
|
||||
fixwd()
|
||||
return bind(name, old, flag)
|
||||
}
|
||||
|
||||
//sys mount(fd int, afd int, old string, flag int, aname string) (err error)
|
||||
func Mount(fd int, afd int, old string, flag int, aname string) (err error) {
|
||||
fixwd()
|
||||
return mount(fd, afd, old, flag, aname)
|
||||
}
|
||||
|
||||
//sys wstat(path string, edir []byte) (err error)
|
||||
func Wstat(path string, edir []byte) (err error) {
|
||||
fixwd()
|
||||
return wstat(path, edir)
|
||||
}
|
||||
|
||||
//sys chdir(path string) (err error)
|
||||
//sys Dup(oldfd int, newfd int) (fd int, err error)
|
||||
//sys Pread(fd int, p []byte, offset int64) (n int, err error)
|
||||
//sys Pwrite(fd int, p []byte, offset int64) (n int, err error)
|
||||
//sys Close(fd int) (err error)
|
||||
//sys Fstat(fd int, edir []byte) (n int, err error)
|
||||
//sys Fwstat(fd int, edir []byte) (err error)
|
|
@ -0,0 +1,33 @@
|
|||
// Copyright 2013 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build plan9
|
||||
|
||||
package plan9_test
|
||||
|
||||
import (
|
||||
"testing"
|
||||
|
||||
"golang.org/x/sys/plan9"
|
||||
)
|
||||
|
||||
func testSetGetenv(t *testing.T, key, value string) {
|
||||
err := plan9.Setenv(key, value)
|
||||
if err != nil {
|
||||
t.Fatalf("Setenv failed to set %q: %v", value, err)
|
||||
}
|
||||
newvalue, found := plan9.Getenv(key)
|
||||
if !found {
|
||||
t.Fatalf("Getenv failed to find %v variable (want value %q)", key, value)
|
||||
}
|
||||
if newvalue != value {
|
||||
t.Fatalf("Getenv(%v) = %q; want %q", key, newvalue, value)
|
||||
}
|
||||
}
|
||||
|
||||
func TestEnv(t *testing.T) {
|
||||
testSetGetenv(t, "TESTENV", "AVALUE")
|
||||
// make sure TESTENV gets set to "", not deleted
|
||||
testSetGetenv(t, "TESTENV", "")
|
||||
}
|
|
@ -0,0 +1,284 @@
|
|||
// go run mksyscall.go -l32 -plan9 -tags plan9,386 syscall_plan9.go
|
||||
// Code generated by the command above; see README.md. DO NOT EDIT.
|
||||
|
||||
// +build plan9,386
|
||||
|
||||
package plan9
|
||||
|
||||
import "unsafe"
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func fd2path(fd int, buf []byte) (err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(buf) > 0 {
|
||||
_p0 = unsafe.Pointer(&buf[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_FD2PATH, uintptr(fd), uintptr(_p0), uintptr(len(buf)))
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func pipe(p *[2]int32) (err error) {
|
||||
r0, _, e1 := Syscall(SYS_PIPE, uintptr(unsafe.Pointer(p)), 0, 0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func await(s []byte) (n int, err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(s) > 0 {
|
||||
_p0 = unsafe.Pointer(&s[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_AWAIT, uintptr(_p0), uintptr(len(s)), 0)
|
||||
n = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func open(path string, mode int) (fd int, err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_OPEN, uintptr(unsafe.Pointer(_p0)), uintptr(mode), 0)
|
||||
fd = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func create(path string, mode int, perm uint32) (fd int, err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_CREATE, uintptr(unsafe.Pointer(_p0)), uintptr(mode), uintptr(perm))
|
||||
fd = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func remove(path string) (err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_REMOVE, uintptr(unsafe.Pointer(_p0)), 0, 0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func stat(path string, edir []byte) (n int, err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
var _p1 unsafe.Pointer
|
||||
if len(edir) > 0 {
|
||||
_p1 = unsafe.Pointer(&edir[0])
|
||||
} else {
|
||||
_p1 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_STAT, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(edir)))
|
||||
n = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func bind(name string, old string, flag int) (err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(name)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
var _p1 *byte
|
||||
_p1, err = BytePtrFromString(old)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_BIND, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(flag))
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func mount(fd int, afd int, old string, flag int, aname string) (err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(old)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
var _p1 *byte
|
||||
_p1, err = BytePtrFromString(aname)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall6(SYS_MOUNT, uintptr(fd), uintptr(afd), uintptr(unsafe.Pointer(_p0)), uintptr(flag), uintptr(unsafe.Pointer(_p1)), 0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func wstat(path string, edir []byte) (err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
var _p1 unsafe.Pointer
|
||||
if len(edir) > 0 {
|
||||
_p1 = unsafe.Pointer(&edir[0])
|
||||
} else {
|
||||
_p1 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_WSTAT, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(edir)))
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func chdir(path string) (err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_CHDIR, uintptr(unsafe.Pointer(_p0)), 0, 0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Dup(oldfd int, newfd int) (fd int, err error) {
|
||||
r0, _, e1 := Syscall(SYS_DUP, uintptr(oldfd), uintptr(newfd), 0)
|
||||
fd = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Pread(fd int, p []byte, offset int64) (n int, err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(p) > 0 {
|
||||
_p0 = unsafe.Pointer(&p[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall6(SYS_PREAD, uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(offset), uintptr(offset>>32), 0)
|
||||
n = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(p) > 0 {
|
||||
_p0 = unsafe.Pointer(&p[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall6(SYS_PWRITE, uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(offset), uintptr(offset>>32), 0)
|
||||
n = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Close(fd int) (err error) {
|
||||
r0, _, e1 := Syscall(SYS_CLOSE, uintptr(fd), 0, 0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Fstat(fd int, edir []byte) (n int, err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(edir) > 0 {
|
||||
_p0 = unsafe.Pointer(&edir[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_FSTAT, uintptr(fd), uintptr(_p0), uintptr(len(edir)))
|
||||
n = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Fwstat(fd int, edir []byte) (err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(edir) > 0 {
|
||||
_p0 = unsafe.Pointer(&edir[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_FWSTAT, uintptr(fd), uintptr(_p0), uintptr(len(edir)))
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
|
@ -0,0 +1,284 @@
|
|||
// go run mksyscall.go -l32 -plan9 -tags plan9,amd64 syscall_plan9.go
|
||||
// Code generated by the command above; see README.md. DO NOT EDIT.
|
||||
|
||||
// +build plan9,amd64
|
||||
|
||||
package plan9
|
||||
|
||||
import "unsafe"
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func fd2path(fd int, buf []byte) (err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(buf) > 0 {
|
||||
_p0 = unsafe.Pointer(&buf[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_FD2PATH, uintptr(fd), uintptr(_p0), uintptr(len(buf)))
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func pipe(p *[2]int32) (err error) {
|
||||
r0, _, e1 := Syscall(SYS_PIPE, uintptr(unsafe.Pointer(p)), 0, 0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func await(s []byte) (n int, err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(s) > 0 {
|
||||
_p0 = unsafe.Pointer(&s[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_AWAIT, uintptr(_p0), uintptr(len(s)), 0)
|
||||
n = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func open(path string, mode int) (fd int, err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_OPEN, uintptr(unsafe.Pointer(_p0)), uintptr(mode), 0)
|
||||
fd = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func create(path string, mode int, perm uint32) (fd int, err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_CREATE, uintptr(unsafe.Pointer(_p0)), uintptr(mode), uintptr(perm))
|
||||
fd = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func remove(path string) (err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_REMOVE, uintptr(unsafe.Pointer(_p0)), 0, 0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func stat(path string, edir []byte) (n int, err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
var _p1 unsafe.Pointer
|
||||
if len(edir) > 0 {
|
||||
_p1 = unsafe.Pointer(&edir[0])
|
||||
} else {
|
||||
_p1 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_STAT, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(edir)))
|
||||
n = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func bind(name string, old string, flag int) (err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(name)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
var _p1 *byte
|
||||
_p1, err = BytePtrFromString(old)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_BIND, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(flag))
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func mount(fd int, afd int, old string, flag int, aname string) (err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(old)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
var _p1 *byte
|
||||
_p1, err = BytePtrFromString(aname)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall6(SYS_MOUNT, uintptr(fd), uintptr(afd), uintptr(unsafe.Pointer(_p0)), uintptr(flag), uintptr(unsafe.Pointer(_p1)), 0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func wstat(path string, edir []byte) (err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
var _p1 unsafe.Pointer
|
||||
if len(edir) > 0 {
|
||||
_p1 = unsafe.Pointer(&edir[0])
|
||||
} else {
|
||||
_p1 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_WSTAT, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(edir)))
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func chdir(path string) (err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_CHDIR, uintptr(unsafe.Pointer(_p0)), 0, 0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Dup(oldfd int, newfd int) (fd int, err error) {
|
||||
r0, _, e1 := Syscall(SYS_DUP, uintptr(oldfd), uintptr(newfd), 0)
|
||||
fd = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Pread(fd int, p []byte, offset int64) (n int, err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(p) > 0 {
|
||||
_p0 = unsafe.Pointer(&p[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall6(SYS_PREAD, uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(offset), uintptr(offset>>32), 0)
|
||||
n = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(p) > 0 {
|
||||
_p0 = unsafe.Pointer(&p[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall6(SYS_PWRITE, uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(offset), uintptr(offset>>32), 0)
|
||||
n = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Close(fd int) (err error) {
|
||||
r0, _, e1 := Syscall(SYS_CLOSE, uintptr(fd), 0, 0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Fstat(fd int, edir []byte) (n int, err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(edir) > 0 {
|
||||
_p0 = unsafe.Pointer(&edir[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_FSTAT, uintptr(fd), uintptr(_p0), uintptr(len(edir)))
|
||||
n = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Fwstat(fd int, edir []byte) (err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(edir) > 0 {
|
||||
_p0 = unsafe.Pointer(&edir[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_FWSTAT, uintptr(fd), uintptr(_p0), uintptr(len(edir)))
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
|
@ -0,0 +1,284 @@
|
|||
// go run mksyscall.go -l32 -plan9 -tags plan9,arm syscall_plan9.go
|
||||
// Code generated by the command above; see README.md. DO NOT EDIT.
|
||||
|
||||
// +build plan9,arm
|
||||
|
||||
package plan9
|
||||
|
||||
import "unsafe"
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func fd2path(fd int, buf []byte) (err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(buf) > 0 {
|
||||
_p0 = unsafe.Pointer(&buf[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_FD2PATH, uintptr(fd), uintptr(_p0), uintptr(len(buf)))
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func pipe(p *[2]int32) (err error) {
|
||||
r0, _, e1 := Syscall(SYS_PIPE, uintptr(unsafe.Pointer(p)), 0, 0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func await(s []byte) (n int, err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(s) > 0 {
|
||||
_p0 = unsafe.Pointer(&s[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_AWAIT, uintptr(_p0), uintptr(len(s)), 0)
|
||||
n = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func open(path string, mode int) (fd int, err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_OPEN, uintptr(unsafe.Pointer(_p0)), uintptr(mode), 0)
|
||||
fd = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func create(path string, mode int, perm uint32) (fd int, err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_CREATE, uintptr(unsafe.Pointer(_p0)), uintptr(mode), uintptr(perm))
|
||||
fd = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func remove(path string) (err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_REMOVE, uintptr(unsafe.Pointer(_p0)), 0, 0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func stat(path string, edir []byte) (n int, err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
var _p1 unsafe.Pointer
|
||||
if len(edir) > 0 {
|
||||
_p1 = unsafe.Pointer(&edir[0])
|
||||
} else {
|
||||
_p1 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_STAT, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(edir)))
|
||||
n = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func bind(name string, old string, flag int) (err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(name)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
var _p1 *byte
|
||||
_p1, err = BytePtrFromString(old)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_BIND, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(flag))
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func mount(fd int, afd int, old string, flag int, aname string) (err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(old)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
var _p1 *byte
|
||||
_p1, err = BytePtrFromString(aname)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall6(SYS_MOUNT, uintptr(fd), uintptr(afd), uintptr(unsafe.Pointer(_p0)), uintptr(flag), uintptr(unsafe.Pointer(_p1)), 0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func wstat(path string, edir []byte) (err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
var _p1 unsafe.Pointer
|
||||
if len(edir) > 0 {
|
||||
_p1 = unsafe.Pointer(&edir[0])
|
||||
} else {
|
||||
_p1 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_WSTAT, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(edir)))
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func chdir(path string) (err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_CHDIR, uintptr(unsafe.Pointer(_p0)), 0, 0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Dup(oldfd int, newfd int) (fd int, err error) {
|
||||
r0, _, e1 := Syscall(SYS_DUP, uintptr(oldfd), uintptr(newfd), 0)
|
||||
fd = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Pread(fd int, p []byte, offset int64) (n int, err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(p) > 0 {
|
||||
_p0 = unsafe.Pointer(&p[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall6(SYS_PREAD, uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(offset), uintptr(offset>>32), 0)
|
||||
n = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(p) > 0 {
|
||||
_p0 = unsafe.Pointer(&p[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall6(SYS_PWRITE, uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(offset), uintptr(offset>>32), 0)
|
||||
n = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Close(fd int) (err error) {
|
||||
r0, _, e1 := Syscall(SYS_CLOSE, uintptr(fd), 0, 0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Fstat(fd int, edir []byte) (n int, err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(edir) > 0 {
|
||||
_p0 = unsafe.Pointer(&edir[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_FSTAT, uintptr(fd), uintptr(_p0), uintptr(len(edir)))
|
||||
n = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Fwstat(fd int, edir []byte) (err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(edir) > 0 {
|
||||
_p0 = unsafe.Pointer(&edir[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_FWSTAT, uintptr(fd), uintptr(_p0), uintptr(len(edir)))
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
|
@ -0,0 +1,49 @@
|
|||
// mksysnum_plan9.sh /opt/plan9/sys/src/libc/9syscall/sys.h
|
||||
// MACHINE GENERATED BY THE ABOVE COMMAND; DO NOT EDIT
|
||||
|
||||
package plan9
|
||||
|
||||
const (
|
||||
SYS_SYSR1 = 0
|
||||
SYS_BIND = 2
|
||||
SYS_CHDIR = 3
|
||||
SYS_CLOSE = 4
|
||||
SYS_DUP = 5
|
||||
SYS_ALARM = 6
|
||||
SYS_EXEC = 7
|
||||
SYS_EXITS = 8
|
||||
SYS_FAUTH = 10
|
||||
SYS_SEGBRK = 12
|
||||
SYS_OPEN = 14
|
||||
SYS_OSEEK = 16
|
||||
SYS_SLEEP = 17
|
||||
SYS_RFORK = 19
|
||||
SYS_PIPE = 21
|
||||
SYS_CREATE = 22
|
||||
SYS_FD2PATH = 23
|
||||
SYS_BRK_ = 24
|
||||
SYS_REMOVE = 25
|
||||
SYS_NOTIFY = 28
|
||||
SYS_NOTED = 29
|
||||
SYS_SEGATTACH = 30
|
||||
SYS_SEGDETACH = 31
|
||||
SYS_SEGFREE = 32
|
||||
SYS_SEGFLUSH = 33
|
||||
SYS_RENDEZVOUS = 34
|
||||
SYS_UNMOUNT = 35
|
||||
SYS_SEMACQUIRE = 37
|
||||
SYS_SEMRELEASE = 38
|
||||
SYS_SEEK = 39
|
||||
SYS_FVERSION = 40
|
||||
SYS_ERRSTR = 41
|
||||
SYS_STAT = 42
|
||||
SYS_FSTAT = 43
|
||||
SYS_WSTAT = 44
|
||||
SYS_FWSTAT = 45
|
||||
SYS_MOUNT = 46
|
||||
SYS_AWAIT = 47
|
||||
SYS_PREAD = 50
|
||||
SYS_PWRITE = 51
|
||||
SYS_TSEMACQUIRE = 52
|
||||
SYS_NSEC = 53
|
||||
)
|
|
@ -0,0 +1,2 @@
|
|||
_obj/
|
||||
unix.test
|
|
@ -0,0 +1,184 @@
|
|||
# Building `sys/unix`
|
||||
|
||||
The sys/unix package provides access to the raw system call interface of the
|
||||
underlying operating system. See: https://godoc.org/golang.org/x/sys/unix
|
||||
|
||||
Porting Go to a new architecture/OS combination or adding syscalls, types, or
|
||||
constants to an existing architecture/OS pair requires some manual effort;
|
||||
however, there are tools that automate much of the process.
|
||||
|
||||
## Build Systems
|
||||
|
||||
There are currently two ways we generate the necessary files. We are currently
|
||||
migrating the build system to use containers so the builds are reproducible.
|
||||
This is being done on an OS-by-OS basis. Please update this documentation as
|
||||
components of the build system change.
|
||||
|
||||
### Old Build System (currently for `GOOS != "linux"`)
|
||||
|
||||
The old build system generates the Go files based on the C header files
|
||||
present on your system. This means that files
|
||||
for a given GOOS/GOARCH pair must be generated on a system with that OS and
|
||||
architecture. This also means that the generated code can differ from system
|
||||
to system, based on differences in the header files.
|
||||
|
||||
To avoid this, if you are using the old build system, only generate the Go
|
||||
files on an installation with unmodified header files. It is also important to
|
||||
keep track of which version of the OS the files were generated from (ex.
|
||||
Darwin 14 vs Darwin 15). This makes it easier to track the progress of changes
|
||||
and have each OS upgrade correspond to a single change.
|
||||
|
||||
To build the files for your current OS and architecture, make sure GOOS and
|
||||
GOARCH are set correctly and run `mkall.sh`. This will generate the files for
|
||||
your specific system. Running `mkall.sh -n` shows the commands that will be run.
|
||||
|
||||
Requirements: bash, go
|
||||
|
||||
### New Build System (currently for `GOOS == "linux"`)
|
||||
|
||||
The new build system uses a Docker container to generate the go files directly
|
||||
from source checkouts of the kernel and various system libraries. This means
|
||||
that on any platform that supports Docker, all the files using the new build
|
||||
system can be generated at once, and generated files will not change based on
|
||||
what the person running the scripts has installed on their computer.
|
||||
|
||||
The OS specific files for the new build system are located in the `${GOOS}`
|
||||
directory, and the build is coordinated by the `${GOOS}/mkall.go` program. When
|
||||
the kernel or system library updates, modify the Dockerfile at
|
||||
`${GOOS}/Dockerfile` to checkout the new release of the source.
|
||||
|
||||
To build all the files under the new build system, you must be on an amd64/Linux
|
||||
system and have your GOOS and GOARCH set accordingly. Running `mkall.sh` will
|
||||
then generate all of the files for all of the GOOS/GOARCH pairs in the new build
|
||||
system. Running `mkall.sh -n` shows the commands that will be run.
|
||||
|
||||
Requirements: bash, go, docker
|
||||
|
||||
## Component files
|
||||
|
||||
This section describes the various files used in the code generation process.
|
||||
It also contains instructions on how to modify these files to add a new
|
||||
architecture/OS or to add additional syscalls, types, or constants. Note that
|
||||
if you are using the new build system, the scripts/programs cannot be called normally.
|
||||
They must be called from within the docker container.
|
||||
|
||||
### asm files
|
||||
|
||||
The hand-written assembly file at `asm_${GOOS}_${GOARCH}.s` implements system
|
||||
call dispatch. There are three entry points:
|
||||
```
|
||||
func Syscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr)
|
||||
func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr)
|
||||
func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr)
|
||||
```
|
||||
The first and second are the standard ones; they differ only in how many
|
||||
arguments can be passed to the kernel. The third is for low-level use by the
|
||||
ForkExec wrapper. Unlike the first two, it does not call into the scheduler to
|
||||
let it know that a system call is running.
|
||||
|
||||
When porting Go to a new architecture/OS, this file must be implemented for
|
||||
each GOOS/GOARCH pair.
|
||||
|
||||
### mksysnum
|
||||
|
||||
Mksysnum is a Go program located at `${GOOS}/mksysnum.go` (or `mksysnum_${GOOS}.go`
|
||||
for the old system). This program takes in a list of header files containing the
|
||||
syscall number declarations and parses them to produce the corresponding list of
|
||||
Go numeric constants. See `zsysnum_${GOOS}_${GOARCH}.go` for the generated
|
||||
constants.
|
||||
|
||||
Adding new syscall numbers is mostly done by running the build on a sufficiently
|
||||
new installation of the target OS (or updating the source checkouts for the
|
||||
new build system). However, depending on the OS, you may need to update the
|
||||
parsing in mksysnum.
|
||||
|
||||
### mksyscall.go
|
||||
|
||||
The `syscall.go`, `syscall_${GOOS}.go`, `syscall_${GOOS}_${GOARCH}.go` are
|
||||
hand-written Go files which implement system calls (for unix, the specific OS,
|
||||
or the specific OS/Architecture pair respectively) that need special handling
|
||||
and list `//sys` comments giving prototypes for ones that can be generated.
|
||||
|
||||
The mksyscall.go program takes the `//sys` and `//sysnb` comments and converts
|
||||
them into syscalls. This requires the name of the prototype in the comment to
|
||||
match a syscall number in the `zsysnum_${GOOS}_${GOARCH}.go` file. The function
|
||||
prototype can be exported (capitalized) or not.
|
||||
|
||||
Adding a new syscall often just requires adding a new `//sys` function prototype
|
||||
with the desired arguments and a capitalized name so it is exported. However, if
|
||||
you want the interface to the syscall to be different, often one will make an
|
||||
unexported `//sys` prototype, and then write a custom wrapper in
|
||||
`syscall_${GOOS}.go`.
|
||||
|
||||
### types files
|
||||
|
||||
For each OS, there is a hand-written Go file at `${GOOS}/types.go` (or
|
||||
`types_${GOOS}.go` on the old system). This file includes standard C headers and
|
||||
creates Go type aliases to the corresponding C types. The file is then fed
|
||||
through godef to get the Go compatible definitions. Finally, the generated code
|
||||
is fed though mkpost.go to format the code correctly and remove any hidden or
|
||||
private identifiers. This cleaned-up code is written to
|
||||
`ztypes_${GOOS}_${GOARCH}.go`.
|
||||
|
||||
The hardest part about preparing this file is figuring out which headers to
|
||||
include and which symbols need to be `#define`d to get the actual data
|
||||
structures that pass through to the kernel system calls. Some C libraries
|
||||
preset alternate versions for binary compatibility and translate them on the
|
||||
way in and out of system calls, but there is almost always a `#define` that can
|
||||
get the real ones.
|
||||
See `types_darwin.go` and `linux/types.go` for examples.
|
||||
|
||||
To add a new type, add in the necessary include statement at the top of the
|
||||
file (if it is not already there) and add in a type alias line. Note that if
|
||||
your type is significantly different on different architectures, you may need
|
||||
some `#if/#elif` macros in your include statements.
|
||||
|
||||
### mkerrors.sh
|
||||
|
||||
This script is used to generate the system's various constants. This doesn't
|
||||
just include the error numbers and error strings, but also the signal numbers
|
||||
and a wide variety of miscellaneous constants. The constants come from the list
|
||||
of include files in the `includes_${uname}` variable. A regex then picks out
|
||||
the desired `#define` statements, and generates the corresponding Go constants.
|
||||
The error numbers and strings are generated from `#include <errno.h>`, and the
|
||||
signal numbers and strings are generated from `#include <signal.h>`. All of
|
||||
these constants are written to `zerrors_${GOOS}_${GOARCH}.go` via a C program,
|
||||
`_errors.c`, which prints out all the constants.
|
||||
|
||||
To add a constant, add the header that includes it to the appropriate variable.
|
||||
Then, edit the regex (if necessary) to match the desired constant. Avoid making
|
||||
the regex too broad to avoid matching unintended constants.
|
||||
|
||||
### mkmerge.go
|
||||
|
||||
This program is used to extract duplicate const, func, and type declarations
|
||||
from the generated architecture-specific files listed below, and merge these
|
||||
into a common file for each OS.
|
||||
|
||||
The merge is performed in the following steps:
|
||||
1. Construct the set of common code that is idential in all architecture-specific files.
|
||||
2. Write this common code to the merged file.
|
||||
3. Remove the common code from all architecture-specific files.
|
||||
|
||||
|
||||
## Generated files
|
||||
|
||||
### `zerrors_${GOOS}_${GOARCH}.go`
|
||||
|
||||
A file containing all of the system's generated error numbers, error strings,
|
||||
signal numbers, and constants. Generated by `mkerrors.sh` (see above).
|
||||
|
||||
### `zsyscall_${GOOS}_${GOARCH}.go`
|
||||
|
||||
A file containing all the generated syscalls for a specific GOOS and GOARCH.
|
||||
Generated by `mksyscall.go` (see above).
|
||||
|
||||
### `zsysnum_${GOOS}_${GOARCH}.go`
|
||||
|
||||
A list of numeric constants for all the syscall number of the specific GOOS
|
||||
and GOARCH. Generated by mksysnum (see above).
|
||||
|
||||
### `ztypes_${GOOS}_${GOARCH}.go`
|
||||
|
||||
A file containing Go types for passing into (or returning from) syscalls.
|
||||
Generated by godefs and the types file (see above).
|
|
@ -0,0 +1,86 @@
|
|||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// CPU affinity functions
|
||||
|
||||
package unix
|
||||
|
||||
import (
|
||||
"math/bits"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
const cpuSetSize = _CPU_SETSIZE / _NCPUBITS
|
||||
|
||||
// CPUSet represents a CPU affinity mask.
|
||||
type CPUSet [cpuSetSize]cpuMask
|
||||
|
||||
func schedAffinity(trap uintptr, pid int, set *CPUSet) error {
|
||||
_, _, e := RawSyscall(trap, uintptr(pid), uintptr(unsafe.Sizeof(*set)), uintptr(unsafe.Pointer(set)))
|
||||
if e != 0 {
|
||||
return errnoErr(e)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// SchedGetaffinity gets the CPU affinity mask of the thread specified by pid.
|
||||
// If pid is 0 the calling thread is used.
|
||||
func SchedGetaffinity(pid int, set *CPUSet) error {
|
||||
return schedAffinity(SYS_SCHED_GETAFFINITY, pid, set)
|
||||
}
|
||||
|
||||
// SchedSetaffinity sets the CPU affinity mask of the thread specified by pid.
|
||||
// If pid is 0 the calling thread is used.
|
||||
func SchedSetaffinity(pid int, set *CPUSet) error {
|
||||
return schedAffinity(SYS_SCHED_SETAFFINITY, pid, set)
|
||||
}
|
||||
|
||||
// Zero clears the set s, so that it contains no CPUs.
|
||||
func (s *CPUSet) Zero() {
|
||||
for i := range s {
|
||||
s[i] = 0
|
||||
}
|
||||
}
|
||||
|
||||
func cpuBitsIndex(cpu int) int {
|
||||
return cpu / _NCPUBITS
|
||||
}
|
||||
|
||||
func cpuBitsMask(cpu int) cpuMask {
|
||||
return cpuMask(1 << (uint(cpu) % _NCPUBITS))
|
||||
}
|
||||
|
||||
// Set adds cpu to the set s.
|
||||
func (s *CPUSet) Set(cpu int) {
|
||||
i := cpuBitsIndex(cpu)
|
||||
if i < len(s) {
|
||||
s[i] |= cpuBitsMask(cpu)
|
||||
}
|
||||
}
|
||||
|
||||
// Clear removes cpu from the set s.
|
||||
func (s *CPUSet) Clear(cpu int) {
|
||||
i := cpuBitsIndex(cpu)
|
||||
if i < len(s) {
|
||||
s[i] &^= cpuBitsMask(cpu)
|
||||
}
|
||||
}
|
||||
|
||||
// IsSet reports whether cpu is in the set s.
|
||||
func (s *CPUSet) IsSet(cpu int) bool {
|
||||
i := cpuBitsIndex(cpu)
|
||||
if i < len(s) {
|
||||
return s[i]&cpuBitsMask(cpu) != 0
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// Count returns the number of CPUs in the set s.
|
||||
func (s *CPUSet) Count() int {
|
||||
c := 0
|
||||
for _, b := range s {
|
||||
c += bits.OnesCount64(uint64(b))
|
||||
}
|
||||
return c
|
||||
}
|
|
@ -0,0 +1,15 @@
|
|||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build (aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos) && go1.9
|
||||
// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris zos
|
||||
// +build go1.9
|
||||
|
||||
package unix
|
||||
|
||||
import "syscall"
|
||||
|
||||
type Signal = syscall.Signal
|
||||
type Errno = syscall.Errno
|
||||
type SysProcAttr = syscall.SysProcAttr
|
|
@ -0,0 +1,18 @@
|
|||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build gc
|
||||
// +build gc
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
//
|
||||
// System calls for ppc64, AIX are implemented in runtime/syscall_aix.go
|
||||
//
|
||||
|
||||
TEXT ·syscall6(SB),NOSPLIT,$0-88
|
||||
JMP syscall·syscall6(SB)
|
||||
|
||||
TEXT ·rawSyscall6(SB),NOSPLIT,$0-88
|
||||
JMP syscall·rawSyscall6(SB)
|
|
@ -0,0 +1,29 @@
|
|||
// Copyright 2021 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build (freebsd || netbsd || openbsd) && gc
|
||||
// +build freebsd netbsd openbsd
|
||||
// +build gc
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
// System call support for 386 BSD
|
||||
|
||||
// Just jump to package syscall's implementation for all these functions.
|
||||
// The runtime may know about them.
|
||||
|
||||
TEXT ·Syscall(SB),NOSPLIT,$0-28
|
||||
JMP syscall·Syscall(SB)
|
||||
|
||||
TEXT ·Syscall6(SB),NOSPLIT,$0-40
|
||||
JMP syscall·Syscall6(SB)
|
||||
|
||||
TEXT ·Syscall9(SB),NOSPLIT,$0-52
|
||||
JMP syscall·Syscall9(SB)
|
||||
|
||||
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
|
||||
JMP syscall·RawSyscall(SB)
|
||||
|
||||
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
|
||||
JMP syscall·RawSyscall6(SB)
|
|
@ -0,0 +1,29 @@
|
|||
// Copyright 2021 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build (darwin || dragonfly || freebsd || netbsd || openbsd) && gc
|
||||
// +build darwin dragonfly freebsd netbsd openbsd
|
||||
// +build gc
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
// System call support for AMD64 BSD
|
||||
|
||||
// Just jump to package syscall's implementation for all these functions.
|
||||
// The runtime may know about them.
|
||||
|
||||
TEXT ·Syscall(SB),NOSPLIT,$0-56
|
||||
JMP syscall·Syscall(SB)
|
||||
|
||||
TEXT ·Syscall6(SB),NOSPLIT,$0-80
|
||||
JMP syscall·Syscall6(SB)
|
||||
|
||||
TEXT ·Syscall9(SB),NOSPLIT,$0-104
|
||||
JMP syscall·Syscall9(SB)
|
||||
|
||||
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
|
||||
JMP syscall·RawSyscall(SB)
|
||||
|
||||
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
|
||||
JMP syscall·RawSyscall6(SB)
|
|
@ -0,0 +1,29 @@
|
|||
// Copyright 2021 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build (freebsd || netbsd || openbsd) && gc
|
||||
// +build freebsd netbsd openbsd
|
||||
// +build gc
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
// System call support for ARM BSD
|
||||
|
||||
// Just jump to package syscall's implementation for all these functions.
|
||||
// The runtime may know about them.
|
||||
|
||||
TEXT ·Syscall(SB),NOSPLIT,$0-28
|
||||
B syscall·Syscall(SB)
|
||||
|
||||
TEXT ·Syscall6(SB),NOSPLIT,$0-40
|
||||
B syscall·Syscall6(SB)
|
||||
|
||||
TEXT ·Syscall9(SB),NOSPLIT,$0-52
|
||||
B syscall·Syscall9(SB)
|
||||
|
||||
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
|
||||
B syscall·RawSyscall(SB)
|
||||
|
||||
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
|
||||
B syscall·RawSyscall6(SB)
|
|
@ -0,0 +1,29 @@
|
|||
// Copyright 2021 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build (darwin || freebsd || netbsd || openbsd) && gc
|
||||
// +build darwin freebsd netbsd openbsd
|
||||
// +build gc
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
// System call support for ARM64 BSD
|
||||
|
||||
// Just jump to package syscall's implementation for all these functions.
|
||||
// The runtime may know about them.
|
||||
|
||||
TEXT ·Syscall(SB),NOSPLIT,$0-56
|
||||
JMP syscall·Syscall(SB)
|
||||
|
||||
TEXT ·Syscall6(SB),NOSPLIT,$0-80
|
||||
JMP syscall·Syscall6(SB)
|
||||
|
||||
TEXT ·Syscall9(SB),NOSPLIT,$0-104
|
||||
JMP syscall·Syscall9(SB)
|
||||
|
||||
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
|
||||
JMP syscall·RawSyscall(SB)
|
||||
|
||||
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
|
||||
JMP syscall·RawSyscall6(SB)
|
|
@ -0,0 +1,66 @@
|
|||
// Copyright 2009 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build gc
|
||||
// +build gc
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
//
|
||||
// System calls for 386, Linux
|
||||
//
|
||||
|
||||
// See ../runtime/sys_linux_386.s for the reason why we always use int 0x80
|
||||
// instead of the glibc-specific "CALL 0x10(GS)".
|
||||
#define INVOKE_SYSCALL INT $0x80
|
||||
|
||||
// Just jump to package syscall's implementation for all these functions.
|
||||
// The runtime may know about them.
|
||||
|
||||
TEXT ·Syscall(SB),NOSPLIT,$0-28
|
||||
JMP syscall·Syscall(SB)
|
||||
|
||||
TEXT ·Syscall6(SB),NOSPLIT,$0-40
|
||||
JMP syscall·Syscall6(SB)
|
||||
|
||||
TEXT ·SyscallNoError(SB),NOSPLIT,$0-24
|
||||
CALL runtime·entersyscall(SB)
|
||||
MOVL trap+0(FP), AX // syscall entry
|
||||
MOVL a1+4(FP), BX
|
||||
MOVL a2+8(FP), CX
|
||||
MOVL a3+12(FP), DX
|
||||
MOVL $0, SI
|
||||
MOVL $0, DI
|
||||
INVOKE_SYSCALL
|
||||
MOVL AX, r1+16(FP)
|
||||
MOVL DX, r2+20(FP)
|
||||
CALL runtime·exitsyscall(SB)
|
||||
RET
|
||||
|
||||
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
|
||||
JMP syscall·RawSyscall(SB)
|
||||
|
||||
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
|
||||
JMP syscall·RawSyscall6(SB)
|
||||
|
||||
TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-24
|
||||
MOVL trap+0(FP), AX // syscall entry
|
||||
MOVL a1+4(FP), BX
|
||||
MOVL a2+8(FP), CX
|
||||
MOVL a3+12(FP), DX
|
||||
MOVL $0, SI
|
||||
MOVL $0, DI
|
||||
INVOKE_SYSCALL
|
||||
MOVL AX, r1+16(FP)
|
||||
MOVL DX, r2+20(FP)
|
||||
RET
|
||||
|
||||
TEXT ·socketcall(SB),NOSPLIT,$0-36
|
||||
JMP syscall·socketcall(SB)
|
||||
|
||||
TEXT ·rawsocketcall(SB),NOSPLIT,$0-36
|
||||
JMP syscall·rawsocketcall(SB)
|
||||
|
||||
TEXT ·seek(SB),NOSPLIT,$0-28
|
||||
JMP syscall·seek(SB)
|
|
@ -0,0 +1,58 @@
|
|||
// Copyright 2009 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build gc
|
||||
// +build gc
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
//
|
||||
// System calls for AMD64, Linux
|
||||
//
|
||||
|
||||
// Just jump to package syscall's implementation for all these functions.
|
||||
// The runtime may know about them.
|
||||
|
||||
TEXT ·Syscall(SB),NOSPLIT,$0-56
|
||||
JMP syscall·Syscall(SB)
|
||||
|
||||
TEXT ·Syscall6(SB),NOSPLIT,$0-80
|
||||
JMP syscall·Syscall6(SB)
|
||||
|
||||
TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
|
||||
CALL runtime·entersyscall(SB)
|
||||
MOVQ a1+8(FP), DI
|
||||
MOVQ a2+16(FP), SI
|
||||
MOVQ a3+24(FP), DX
|
||||
MOVQ $0, R10
|
||||
MOVQ $0, R8
|
||||
MOVQ $0, R9
|
||||
MOVQ trap+0(FP), AX // syscall entry
|
||||
SYSCALL
|
||||
MOVQ AX, r1+32(FP)
|
||||
MOVQ DX, r2+40(FP)
|
||||
CALL runtime·exitsyscall(SB)
|
||||
RET
|
||||
|
||||
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
|
||||
JMP syscall·RawSyscall(SB)
|
||||
|
||||
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
|
||||
JMP syscall·RawSyscall6(SB)
|
||||
|
||||
TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
|
||||
MOVQ a1+8(FP), DI
|
||||
MOVQ a2+16(FP), SI
|
||||
MOVQ a3+24(FP), DX
|
||||
MOVQ $0, R10
|
||||
MOVQ $0, R8
|
||||
MOVQ $0, R9
|
||||
MOVQ trap+0(FP), AX // syscall entry
|
||||
SYSCALL
|
||||
MOVQ AX, r1+32(FP)
|
||||
MOVQ DX, r2+40(FP)
|
||||
RET
|
||||
|
||||
TEXT ·gettimeofday(SB),NOSPLIT,$0-16
|
||||
JMP syscall·gettimeofday(SB)
|
|
@ -0,0 +1,57 @@
|
|||
// Copyright 2009 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build gc
|
||||
// +build gc
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
//
|
||||
// System calls for arm, Linux
|
||||
//
|
||||
|
||||
// Just jump to package syscall's implementation for all these functions.
|
||||
// The runtime may know about them.
|
||||
|
||||
TEXT ·Syscall(SB),NOSPLIT,$0-28
|
||||
B syscall·Syscall(SB)
|
||||
|
||||
TEXT ·Syscall6(SB),NOSPLIT,$0-40
|
||||
B syscall·Syscall6(SB)
|
||||
|
||||
TEXT ·SyscallNoError(SB),NOSPLIT,$0-24
|
||||
BL runtime·entersyscall(SB)
|
||||
MOVW trap+0(FP), R7
|
||||
MOVW a1+4(FP), R0
|
||||
MOVW a2+8(FP), R1
|
||||
MOVW a3+12(FP), R2
|
||||
MOVW $0, R3
|
||||
MOVW $0, R4
|
||||
MOVW $0, R5
|
||||
SWI $0
|
||||
MOVW R0, r1+16(FP)
|
||||
MOVW $0, R0
|
||||
MOVW R0, r2+20(FP)
|
||||
BL runtime·exitsyscall(SB)
|
||||
RET
|
||||
|
||||
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
|
||||
B syscall·RawSyscall(SB)
|
||||
|
||||
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
|
||||
B syscall·RawSyscall6(SB)
|
||||
|
||||
TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-24
|
||||
MOVW trap+0(FP), R7 // syscall entry
|
||||
MOVW a1+4(FP), R0
|
||||
MOVW a2+8(FP), R1
|
||||
MOVW a3+12(FP), R2
|
||||
SWI $0
|
||||
MOVW R0, r1+16(FP)
|
||||
MOVW $0, R0
|
||||
MOVW R0, r2+20(FP)
|
||||
RET
|
||||
|
||||
TEXT ·seek(SB),NOSPLIT,$0-28
|
||||
B syscall·seek(SB)
|
|
@ -0,0 +1,53 @@
|
|||
// Copyright 2015 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build linux && arm64 && gc
|
||||
// +build linux
|
||||
// +build arm64
|
||||
// +build gc
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
// Just jump to package syscall's implementation for all these functions.
|
||||
// The runtime may know about them.
|
||||
|
||||
TEXT ·Syscall(SB),NOSPLIT,$0-56
|
||||
B syscall·Syscall(SB)
|
||||
|
||||
TEXT ·Syscall6(SB),NOSPLIT,$0-80
|
||||
B syscall·Syscall6(SB)
|
||||
|
||||
TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
|
||||
BL runtime·entersyscall(SB)
|
||||
MOVD a1+8(FP), R0
|
||||
MOVD a2+16(FP), R1
|
||||
MOVD a3+24(FP), R2
|
||||
MOVD $0, R3
|
||||
MOVD $0, R4
|
||||
MOVD $0, R5
|
||||
MOVD trap+0(FP), R8 // syscall entry
|
||||
SVC
|
||||
MOVD R0, r1+32(FP) // r1
|
||||
MOVD R1, r2+40(FP) // r2
|
||||
BL runtime·exitsyscall(SB)
|
||||
RET
|
||||
|
||||
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
|
||||
B syscall·RawSyscall(SB)
|
||||
|
||||
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
|
||||
B syscall·RawSyscall6(SB)
|
||||
|
||||
TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
|
||||
MOVD a1+8(FP), R0
|
||||
MOVD a2+16(FP), R1
|
||||
MOVD a3+24(FP), R2
|
||||
MOVD $0, R3
|
||||
MOVD $0, R4
|
||||
MOVD $0, R5
|
||||
MOVD trap+0(FP), R8 // syscall entry
|
||||
SVC
|
||||
MOVD R0, r1+32(FP)
|
||||
MOVD R1, r2+40(FP)
|
||||
RET
|
|
@ -0,0 +1,57 @@
|
|||
// Copyright 2015 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build linux && (mips64 || mips64le) && gc
|
||||
// +build linux
|
||||
// +build mips64 mips64le
|
||||
// +build gc
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
//
|
||||
// System calls for mips64, Linux
|
||||
//
|
||||
|
||||
// Just jump to package syscall's implementation for all these functions.
|
||||
// The runtime may know about them.
|
||||
|
||||
TEXT ·Syscall(SB),NOSPLIT,$0-56
|
||||
JMP syscall·Syscall(SB)
|
||||
|
||||
TEXT ·Syscall6(SB),NOSPLIT,$0-80
|
||||
JMP syscall·Syscall6(SB)
|
||||
|
||||
TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
|
||||
JAL runtime·entersyscall(SB)
|
||||
MOVV a1+8(FP), R4
|
||||
MOVV a2+16(FP), R5
|
||||
MOVV a3+24(FP), R6
|
||||
MOVV R0, R7
|
||||
MOVV R0, R8
|
||||
MOVV R0, R9
|
||||
MOVV trap+0(FP), R2 // syscall entry
|
||||
SYSCALL
|
||||
MOVV R2, r1+32(FP)
|
||||
MOVV R3, r2+40(FP)
|
||||
JAL runtime·exitsyscall(SB)
|
||||
RET
|
||||
|
||||
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
|
||||
JMP syscall·RawSyscall(SB)
|
||||
|
||||
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
|
||||
JMP syscall·RawSyscall6(SB)
|
||||
|
||||
TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
|
||||
MOVV a1+8(FP), R4
|
||||
MOVV a2+16(FP), R5
|
||||
MOVV a3+24(FP), R6
|
||||
MOVV R0, R7
|
||||
MOVV R0, R8
|
||||
MOVV R0, R9
|
||||
MOVV trap+0(FP), R2 // syscall entry
|
||||
SYSCALL
|
||||
MOVV R2, r1+32(FP)
|
||||
MOVV R3, r2+40(FP)
|
||||
RET
|
|
@ -0,0 +1,55 @@
|
|||
// Copyright 2016 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build linux && (mips || mipsle) && gc
|
||||
// +build linux
|
||||
// +build mips mipsle
|
||||
// +build gc
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
//
|
||||
// System calls for mips, Linux
|
||||
//
|
||||
|
||||
// Just jump to package syscall's implementation for all these functions.
|
||||
// The runtime may know about them.
|
||||
|
||||
TEXT ·Syscall(SB),NOSPLIT,$0-28
|
||||
JMP syscall·Syscall(SB)
|
||||
|
||||
TEXT ·Syscall6(SB),NOSPLIT,$0-40
|
||||
JMP syscall·Syscall6(SB)
|
||||
|
||||
TEXT ·Syscall9(SB),NOSPLIT,$0-52
|
||||
JMP syscall·Syscall9(SB)
|
||||
|
||||
TEXT ·SyscallNoError(SB),NOSPLIT,$0-24
|
||||
JAL runtime·entersyscall(SB)
|
||||
MOVW a1+4(FP), R4
|
||||
MOVW a2+8(FP), R5
|
||||
MOVW a3+12(FP), R6
|
||||
MOVW R0, R7
|
||||
MOVW trap+0(FP), R2 // syscall entry
|
||||
SYSCALL
|
||||
MOVW R2, r1+16(FP) // r1
|
||||
MOVW R3, r2+20(FP) // r2
|
||||
JAL runtime·exitsyscall(SB)
|
||||
RET
|
||||
|
||||
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
|
||||
JMP syscall·RawSyscall(SB)
|
||||
|
||||
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
|
||||
JMP syscall·RawSyscall6(SB)
|
||||
|
||||
TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-24
|
||||
MOVW a1+4(FP), R4
|
||||
MOVW a2+8(FP), R5
|
||||
MOVW a3+12(FP), R6
|
||||
MOVW trap+0(FP), R2 // syscall entry
|
||||
SYSCALL
|
||||
MOVW R2, r1+16(FP)
|
||||
MOVW R3, r2+20(FP)
|
||||
RET
|
|
@ -0,0 +1,45 @@
|
|||
// Copyright 2014 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build linux && (ppc64 || ppc64le) && gc
|
||||
// +build linux
|
||||
// +build ppc64 ppc64le
|
||||
// +build gc
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
//
|
||||
// System calls for ppc64, Linux
|
||||
//
|
||||
|
||||
// Just jump to package syscall's implementation for all these functions.
|
||||
// The runtime may know about them.
|
||||
|
||||
TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
|
||||
BL runtime·entersyscall(SB)
|
||||
MOVD a1+8(FP), R3
|
||||
MOVD a2+16(FP), R4
|
||||
MOVD a3+24(FP), R5
|
||||
MOVD R0, R6
|
||||
MOVD R0, R7
|
||||
MOVD R0, R8
|
||||
MOVD trap+0(FP), R9 // syscall entry
|
||||
SYSCALL R9
|
||||
MOVD R3, r1+32(FP)
|
||||
MOVD R4, r2+40(FP)
|
||||
BL runtime·exitsyscall(SB)
|
||||
RET
|
||||
|
||||
TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
|
||||
MOVD a1+8(FP), R3
|
||||
MOVD a2+16(FP), R4
|
||||
MOVD a3+24(FP), R5
|
||||
MOVD R0, R6
|
||||
MOVD R0, R7
|
||||
MOVD R0, R8
|
||||
MOVD trap+0(FP), R9 // syscall entry
|
||||
SYSCALL R9
|
||||
MOVD R3, r1+32(FP)
|
||||
MOVD R4, r2+40(FP)
|
||||
RET
|
|
@ -0,0 +1,49 @@
|
|||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build riscv64 && gc
|
||||
// +build riscv64
|
||||
// +build gc
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
//
|
||||
// System calls for linux/riscv64.
|
||||
//
|
||||
// Where available, just jump to package syscall's implementation of
|
||||
// these functions.
|
||||
|
||||
TEXT ·Syscall(SB),NOSPLIT,$0-56
|
||||
JMP syscall·Syscall(SB)
|
||||
|
||||
TEXT ·Syscall6(SB),NOSPLIT,$0-80
|
||||
JMP syscall·Syscall6(SB)
|
||||
|
||||
TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
|
||||
CALL runtime·entersyscall(SB)
|
||||
MOV a1+8(FP), A0
|
||||
MOV a2+16(FP), A1
|
||||
MOV a3+24(FP), A2
|
||||
MOV trap+0(FP), A7 // syscall entry
|
||||
ECALL
|
||||
MOV A0, r1+32(FP) // r1
|
||||
MOV A1, r2+40(FP) // r2
|
||||
CALL runtime·exitsyscall(SB)
|
||||
RET
|
||||
|
||||
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
|
||||
JMP syscall·RawSyscall(SB)
|
||||
|
||||
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
|
||||
JMP syscall·RawSyscall6(SB)
|
||||
|
||||
TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
|
||||
MOV a1+8(FP), A0
|
||||
MOV a2+16(FP), A1
|
||||
MOV a3+24(FP), A2
|
||||
MOV trap+0(FP), A7 // syscall entry
|
||||
ECALL
|
||||
MOV A0, r1+32(FP)
|
||||
MOV A1, r2+40(FP)
|
||||
RET
|
|
@ -0,0 +1,57 @@
|
|||
// Copyright 2016 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build linux && s390x && gc
|
||||
// +build linux
|
||||
// +build s390x
|
||||
// +build gc
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
//
|
||||
// System calls for s390x, Linux
|
||||
//
|
||||
|
||||
// Just jump to package syscall's implementation for all these functions.
|
||||
// The runtime may know about them.
|
||||
|
||||
TEXT ·Syscall(SB),NOSPLIT,$0-56
|
||||
BR syscall·Syscall(SB)
|
||||
|
||||
TEXT ·Syscall6(SB),NOSPLIT,$0-80
|
||||
BR syscall·Syscall6(SB)
|
||||
|
||||
TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
|
||||
BL runtime·entersyscall(SB)
|
||||
MOVD a1+8(FP), R2
|
||||
MOVD a2+16(FP), R3
|
||||
MOVD a3+24(FP), R4
|
||||
MOVD $0, R5
|
||||
MOVD $0, R6
|
||||
MOVD $0, R7
|
||||
MOVD trap+0(FP), R1 // syscall entry
|
||||
SYSCALL
|
||||
MOVD R2, r1+32(FP)
|
||||
MOVD R3, r2+40(FP)
|
||||
BL runtime·exitsyscall(SB)
|
||||
RET
|
||||
|
||||
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
|
||||
BR syscall·RawSyscall(SB)
|
||||
|
||||
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
|
||||
BR syscall·RawSyscall6(SB)
|
||||
|
||||
TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
|
||||
MOVD a1+8(FP), R2
|
||||
MOVD a2+16(FP), R3
|
||||
MOVD a3+24(FP), R4
|
||||
MOVD $0, R5
|
||||
MOVD $0, R6
|
||||
MOVD $0, R7
|
||||
MOVD trap+0(FP), R1 // syscall entry
|
||||
SYSCALL
|
||||
MOVD R2, r1+32(FP)
|
||||
MOVD R3, r2+40(FP)
|
||||
RET
|
|
@ -0,0 +1,30 @@
|
|||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build gc
|
||||
// +build gc
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
//
|
||||
// System call support for mips64, OpenBSD
|
||||
//
|
||||
|
||||
// Just jump to package syscall's implementation for all these functions.
|
||||
// The runtime may know about them.
|
||||
|
||||
TEXT ·Syscall(SB),NOSPLIT,$0-56
|
||||
JMP syscall·Syscall(SB)
|
||||
|
||||
TEXT ·Syscall6(SB),NOSPLIT,$0-80
|
||||
JMP syscall·Syscall6(SB)
|
||||
|
||||
TEXT ·Syscall9(SB),NOSPLIT,$0-104
|
||||
JMP syscall·Syscall9(SB)
|
||||
|
||||
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
|
||||
JMP syscall·RawSyscall(SB)
|
||||
|
||||
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
|
||||
JMP syscall·RawSyscall6(SB)
|
|
@ -0,0 +1,18 @@
|
|||
// Copyright 2014 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build gc
|
||||
// +build gc
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
//
|
||||
// System calls for amd64, Solaris are implemented in runtime/syscall_solaris.go
|
||||
//
|
||||
|
||||
TEXT ·sysvicall6(SB),NOSPLIT,$0-88
|
||||
JMP syscall·sysvicall6(SB)
|
||||
|
||||
TEXT ·rawSysvicall6(SB),NOSPLIT,$0-88
|
||||
JMP syscall·rawSysvicall6(SB)
|
|
@ -0,0 +1,426 @@
|
|||
// Copyright 2020 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build zos && s390x && gc
|
||||
// +build zos
|
||||
// +build s390x
|
||||
// +build gc
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
#define PSALAA 1208(R0)
|
||||
#define GTAB64(x) 80(x)
|
||||
#define LCA64(x) 88(x)
|
||||
#define CAA(x) 8(x)
|
||||
#define EDCHPXV(x) 1016(x) // in the CAA
|
||||
#define SAVSTACK_ASYNC(x) 336(x) // in the LCA
|
||||
|
||||
// SS_*, where x=SAVSTACK_ASYNC
|
||||
#define SS_LE(x) 0(x)
|
||||
#define SS_GO(x) 8(x)
|
||||
#define SS_ERRNO(x) 16(x)
|
||||
#define SS_ERRNOJR(x) 20(x)
|
||||
|
||||
#define LE_CALL BYTE $0x0D; BYTE $0x76; // BL R7, R6
|
||||
|
||||
TEXT ·clearErrno(SB),NOSPLIT,$0-0
|
||||
BL addrerrno<>(SB)
|
||||
MOVD $0, 0(R3)
|
||||
RET
|
||||
|
||||
// Returns the address of errno in R3.
|
||||
TEXT addrerrno<>(SB),NOSPLIT|NOFRAME,$0-0
|
||||
// Get library control area (LCA).
|
||||
MOVW PSALAA, R8
|
||||
MOVD LCA64(R8), R8
|
||||
|
||||
// Get __errno FuncDesc.
|
||||
MOVD CAA(R8), R9
|
||||
MOVD EDCHPXV(R9), R9
|
||||
ADD $(0x156*16), R9
|
||||
LMG 0(R9), R5, R6
|
||||
|
||||
// Switch to saved LE stack.
|
||||
MOVD SAVSTACK_ASYNC(R8), R9
|
||||
MOVD 0(R9), R4
|
||||
MOVD $0, 0(R9)
|
||||
|
||||
// Call __errno function.
|
||||
LE_CALL
|
||||
NOPH
|
||||
|
||||
// Switch back to Go stack.
|
||||
XOR R0, R0 // Restore R0 to $0.
|
||||
MOVD R4, 0(R9) // Save stack pointer.
|
||||
RET
|
||||
|
||||
TEXT ·syscall_syscall(SB),NOSPLIT,$0-56
|
||||
BL runtime·entersyscall(SB)
|
||||
MOVD a1+8(FP), R1
|
||||
MOVD a2+16(FP), R2
|
||||
MOVD a3+24(FP), R3
|
||||
|
||||
// Get library control area (LCA).
|
||||
MOVW PSALAA, R8
|
||||
MOVD LCA64(R8), R8
|
||||
|
||||
// Get function.
|
||||
MOVD CAA(R8), R9
|
||||
MOVD EDCHPXV(R9), R9
|
||||
MOVD trap+0(FP), R5
|
||||
SLD $4, R5
|
||||
ADD R5, R9
|
||||
LMG 0(R9), R5, R6
|
||||
|
||||
// Restore LE stack.
|
||||
MOVD SAVSTACK_ASYNC(R8), R9
|
||||
MOVD 0(R9), R4
|
||||
MOVD $0, 0(R9)
|
||||
|
||||
// Call function.
|
||||
LE_CALL
|
||||
NOPH
|
||||
XOR R0, R0 // Restore R0 to $0.
|
||||
MOVD R4, 0(R9) // Save stack pointer.
|
||||
|
||||
MOVD R3, r1+32(FP)
|
||||
MOVD R0, r2+40(FP)
|
||||
MOVD R0, err+48(FP)
|
||||
MOVW R3, R4
|
||||
CMP R4, $-1
|
||||
BNE done
|
||||
BL addrerrno<>(SB)
|
||||
MOVWZ 0(R3), R3
|
||||
MOVD R3, err+48(FP)
|
||||
done:
|
||||
BL runtime·exitsyscall(SB)
|
||||
RET
|
||||
|
||||
TEXT ·syscall_rawsyscall(SB),NOSPLIT,$0-56
|
||||
MOVD a1+8(FP), R1
|
||||
MOVD a2+16(FP), R2
|
||||
MOVD a3+24(FP), R3
|
||||
|
||||
// Get library control area (LCA).
|
||||
MOVW PSALAA, R8
|
||||
MOVD LCA64(R8), R8
|
||||
|
||||
// Get function.
|
||||
MOVD CAA(R8), R9
|
||||
MOVD EDCHPXV(R9), R9
|
||||
MOVD trap+0(FP), R5
|
||||
SLD $4, R5
|
||||
ADD R5, R9
|
||||
LMG 0(R9), R5, R6
|
||||
|
||||
// Restore LE stack.
|
||||
MOVD SAVSTACK_ASYNC(R8), R9
|
||||
MOVD 0(R9), R4
|
||||
MOVD $0, 0(R9)
|
||||
|
||||
// Call function.
|
||||
LE_CALL
|
||||
NOPH
|
||||
XOR R0, R0 // Restore R0 to $0.
|
||||
MOVD R4, 0(R9) // Save stack pointer.
|
||||
|
||||
MOVD R3, r1+32(FP)
|
||||
MOVD R0, r2+40(FP)
|
||||
MOVD R0, err+48(FP)
|
||||
MOVW R3, R4
|
||||
CMP R4, $-1
|
||||
BNE done
|
||||
BL addrerrno<>(SB)
|
||||
MOVWZ 0(R3), R3
|
||||
MOVD R3, err+48(FP)
|
||||
done:
|
||||
RET
|
||||
|
||||
TEXT ·syscall_syscall6(SB),NOSPLIT,$0-80
|
||||
BL runtime·entersyscall(SB)
|
||||
MOVD a1+8(FP), R1
|
||||
MOVD a2+16(FP), R2
|
||||
MOVD a3+24(FP), R3
|
||||
|
||||
// Get library control area (LCA).
|
||||
MOVW PSALAA, R8
|
||||
MOVD LCA64(R8), R8
|
||||
|
||||
// Get function.
|
||||
MOVD CAA(R8), R9
|
||||
MOVD EDCHPXV(R9), R9
|
||||
MOVD trap+0(FP), R5
|
||||
SLD $4, R5
|
||||
ADD R5, R9
|
||||
LMG 0(R9), R5, R6
|
||||
|
||||
// Restore LE stack.
|
||||
MOVD SAVSTACK_ASYNC(R8), R9
|
||||
MOVD 0(R9), R4
|
||||
MOVD $0, 0(R9)
|
||||
|
||||
// Fill in parameter list.
|
||||
MOVD a4+32(FP), R12
|
||||
MOVD R12, (2176+24)(R4)
|
||||
MOVD a5+40(FP), R12
|
||||
MOVD R12, (2176+32)(R4)
|
||||
MOVD a6+48(FP), R12
|
||||
MOVD R12, (2176+40)(R4)
|
||||
|
||||
// Call function.
|
||||
LE_CALL
|
||||
NOPH
|
||||
XOR R0, R0 // Restore R0 to $0.
|
||||
MOVD R4, 0(R9) // Save stack pointer.
|
||||
|
||||
MOVD R3, r1+56(FP)
|
||||
MOVD R0, r2+64(FP)
|
||||
MOVD R0, err+72(FP)
|
||||
MOVW R3, R4
|
||||
CMP R4, $-1
|
||||
BNE done
|
||||
BL addrerrno<>(SB)
|
||||
MOVWZ 0(R3), R3
|
||||
MOVD R3, err+72(FP)
|
||||
done:
|
||||
BL runtime·exitsyscall(SB)
|
||||
RET
|
||||
|
||||
TEXT ·syscall_rawsyscall6(SB),NOSPLIT,$0-80
|
||||
MOVD a1+8(FP), R1
|
||||
MOVD a2+16(FP), R2
|
||||
MOVD a3+24(FP), R3
|
||||
|
||||
// Get library control area (LCA).
|
||||
MOVW PSALAA, R8
|
||||
MOVD LCA64(R8), R8
|
||||
|
||||
// Get function.
|
||||
MOVD CAA(R8), R9
|
||||
MOVD EDCHPXV(R9), R9
|
||||
MOVD trap+0(FP), R5
|
||||
SLD $4, R5
|
||||
ADD R5, R9
|
||||
LMG 0(R9), R5, R6
|
||||
|
||||
// Restore LE stack.
|
||||
MOVD SAVSTACK_ASYNC(R8), R9
|
||||
MOVD 0(R9), R4
|
||||
MOVD $0, 0(R9)
|
||||
|
||||
// Fill in parameter list.
|
||||
MOVD a4+32(FP), R12
|
||||
MOVD R12, (2176+24)(R4)
|
||||
MOVD a5+40(FP), R12
|
||||
MOVD R12, (2176+32)(R4)
|
||||
MOVD a6+48(FP), R12
|
||||
MOVD R12, (2176+40)(R4)
|
||||
|
||||
// Call function.
|
||||
LE_CALL
|
||||
NOPH
|
||||
XOR R0, R0 // Restore R0 to $0.
|
||||
MOVD R4, 0(R9) // Save stack pointer.
|
||||
|
||||
MOVD R3, r1+56(FP)
|
||||
MOVD R0, r2+64(FP)
|
||||
MOVD R0, err+72(FP)
|
||||
MOVW R3, R4
|
||||
CMP R4, $-1
|
||||
BNE done
|
||||
BL ·rrno<>(SB)
|
||||
MOVWZ 0(R3), R3
|
||||
MOVD R3, err+72(FP)
|
||||
done:
|
||||
RET
|
||||
|
||||
TEXT ·syscall_syscall9(SB),NOSPLIT,$0
|
||||
BL runtime·entersyscall(SB)
|
||||
MOVD a1+8(FP), R1
|
||||
MOVD a2+16(FP), R2
|
||||
MOVD a3+24(FP), R3
|
||||
|
||||
// Get library control area (LCA).
|
||||
MOVW PSALAA, R8
|
||||
MOVD LCA64(R8), R8
|
||||
|
||||
// Get function.
|
||||
MOVD CAA(R8), R9
|
||||
MOVD EDCHPXV(R9), R9
|
||||
MOVD trap+0(FP), R5
|
||||
SLD $4, R5
|
||||
ADD R5, R9
|
||||
LMG 0(R9), R5, R6
|
||||
|
||||
// Restore LE stack.
|
||||
MOVD SAVSTACK_ASYNC(R8), R9
|
||||
MOVD 0(R9), R4
|
||||
MOVD $0, 0(R9)
|
||||
|
||||
// Fill in parameter list.
|
||||
MOVD a4+32(FP), R12
|
||||
MOVD R12, (2176+24)(R4)
|
||||
MOVD a5+40(FP), R12
|
||||
MOVD R12, (2176+32)(R4)
|
||||
MOVD a6+48(FP), R12
|
||||
MOVD R12, (2176+40)(R4)
|
||||
MOVD a7+56(FP), R12
|
||||
MOVD R12, (2176+48)(R4)
|
||||
MOVD a8+64(FP), R12
|
||||
MOVD R12, (2176+56)(R4)
|
||||
MOVD a9+72(FP), R12
|
||||
MOVD R12, (2176+64)(R4)
|
||||
|
||||
// Call function.
|
||||
LE_CALL
|
||||
NOPH
|
||||
XOR R0, R0 // Restore R0 to $0.
|
||||
MOVD R4, 0(R9) // Save stack pointer.
|
||||
|
||||
MOVD R3, r1+80(FP)
|
||||
MOVD R0, r2+88(FP)
|
||||
MOVD R0, err+96(FP)
|
||||
MOVW R3, R4
|
||||
CMP R4, $-1
|
||||
BNE done
|
||||
BL addrerrno<>(SB)
|
||||
MOVWZ 0(R3), R3
|
||||
MOVD R3, err+96(FP)
|
||||
done:
|
||||
BL runtime·exitsyscall(SB)
|
||||
RET
|
||||
|
||||
TEXT ·syscall_rawsyscall9(SB),NOSPLIT,$0
|
||||
MOVD a1+8(FP), R1
|
||||
MOVD a2+16(FP), R2
|
||||
MOVD a3+24(FP), R3
|
||||
|
||||
// Get library control area (LCA).
|
||||
MOVW PSALAA, R8
|
||||
MOVD LCA64(R8), R8
|
||||
|
||||
// Get function.
|
||||
MOVD CAA(R8), R9
|
||||
MOVD EDCHPXV(R9), R9
|
||||
MOVD trap+0(FP), R5
|
||||
SLD $4, R5
|
||||
ADD R5, R9
|
||||
LMG 0(R9), R5, R6
|
||||
|
||||
// Restore LE stack.
|
||||
MOVD SAVSTACK_ASYNC(R8), R9
|
||||
MOVD 0(R9), R4
|
||||
MOVD $0, 0(R9)
|
||||
|
||||
// Fill in parameter list.
|
||||
MOVD a4+32(FP), R12
|
||||
MOVD R12, (2176+24)(R4)
|
||||
MOVD a5+40(FP), R12
|
||||
MOVD R12, (2176+32)(R4)
|
||||
MOVD a6+48(FP), R12
|
||||
MOVD R12, (2176+40)(R4)
|
||||
MOVD a7+56(FP), R12
|
||||
MOVD R12, (2176+48)(R4)
|
||||
MOVD a8+64(FP), R12
|
||||
MOVD R12, (2176+56)(R4)
|
||||
MOVD a9+72(FP), R12
|
||||
MOVD R12, (2176+64)(R4)
|
||||
|
||||
// Call function.
|
||||
LE_CALL
|
||||
NOPH
|
||||
XOR R0, R0 // Restore R0 to $0.
|
||||
MOVD R4, 0(R9) // Save stack pointer.
|
||||
|
||||
MOVD R3, r1+80(FP)
|
||||
MOVD R0, r2+88(FP)
|
||||
MOVD R0, err+96(FP)
|
||||
MOVW R3, R4
|
||||
CMP R4, $-1
|
||||
BNE done
|
||||
BL addrerrno<>(SB)
|
||||
MOVWZ 0(R3), R3
|
||||
MOVD R3, err+96(FP)
|
||||
done:
|
||||
RET
|
||||
|
||||
// func svcCall(fnptr unsafe.Pointer, argv *unsafe.Pointer, dsa *uint64)
|
||||
TEXT ·svcCall(SB),NOSPLIT,$0
|
||||
BL runtime·save_g(SB) // Save g and stack pointer
|
||||
MOVW PSALAA, R8
|
||||
MOVD LCA64(R8), R8
|
||||
MOVD SAVSTACK_ASYNC(R8), R9
|
||||
MOVD R15, 0(R9)
|
||||
|
||||
MOVD argv+8(FP), R1 // Move function arguments into registers
|
||||
MOVD dsa+16(FP), g
|
||||
MOVD fnptr+0(FP), R15
|
||||
|
||||
BYTE $0x0D // Branch to function
|
||||
BYTE $0xEF
|
||||
|
||||
BL runtime·load_g(SB) // Restore g and stack pointer
|
||||
MOVW PSALAA, R8
|
||||
MOVD LCA64(R8), R8
|
||||
MOVD SAVSTACK_ASYNC(R8), R9
|
||||
MOVD 0(R9), R15
|
||||
|
||||
RET
|
||||
|
||||
// func svcLoad(name *byte) unsafe.Pointer
|
||||
TEXT ·svcLoad(SB),NOSPLIT,$0
|
||||
MOVD R15, R2 // Save go stack pointer
|
||||
MOVD name+0(FP), R0 // Move SVC args into registers
|
||||
MOVD $0x80000000, R1
|
||||
MOVD $0, R15
|
||||
BYTE $0x0A // SVC 08 LOAD
|
||||
BYTE $0x08
|
||||
MOVW R15, R3 // Save return code from SVC
|
||||
MOVD R2, R15 // Restore go stack pointer
|
||||
CMP R3, $0 // Check SVC return code
|
||||
BNE error
|
||||
|
||||
MOVD $-2, R3 // Reset last bit of entry point to zero
|
||||
AND R0, R3
|
||||
MOVD R3, addr+8(FP) // Return entry point returned by SVC
|
||||
CMP R0, R3 // Check if last bit of entry point was set
|
||||
BNE done
|
||||
|
||||
MOVD R15, R2 // Save go stack pointer
|
||||
MOVD $0, R15 // Move SVC args into registers (entry point still in r0 from SVC 08)
|
||||
BYTE $0x0A // SVC 09 DELETE
|
||||
BYTE $0x09
|
||||
MOVD R2, R15 // Restore go stack pointer
|
||||
|
||||
error:
|
||||
MOVD $0, addr+8(FP) // Return 0 on failure
|
||||
done:
|
||||
XOR R0, R0 // Reset r0 to 0
|
||||
RET
|
||||
|
||||
// func svcUnload(name *byte, fnptr unsafe.Pointer) int64
|
||||
TEXT ·svcUnload(SB),NOSPLIT,$0
|
||||
MOVD R15, R2 // Save go stack pointer
|
||||
MOVD name+0(FP), R0 // Move SVC args into registers
|
||||
MOVD addr+8(FP), R15
|
||||
BYTE $0x0A // SVC 09
|
||||
BYTE $0x09
|
||||
XOR R0, R0 // Reset r0 to 0
|
||||
MOVD R15, R1 // Save SVC return code
|
||||
MOVD R2, R15 // Restore go stack pointer
|
||||
MOVD R1, rc+0(FP) // Return SVC return code
|
||||
RET
|
||||
|
||||
// func gettid() uint64
|
||||
TEXT ·gettid(SB), NOSPLIT, $0
|
||||
// Get library control area (LCA).
|
||||
MOVW PSALAA, R8
|
||||
MOVD LCA64(R8), R8
|
||||
|
||||
// Get CEECAATHDID
|
||||
MOVD CAA(R8), R9
|
||||
MOVD 0x3D0(R9), R9
|
||||
MOVD R9, ret+0(FP)
|
||||
|
||||
RET
|
|
@ -0,0 +1,36 @@
|
|||
// Copyright 2016 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Bluetooth sockets and messages
|
||||
|
||||
package unix
|
||||
|
||||
// Bluetooth Protocols
|
||||
const (
|
||||
BTPROTO_L2CAP = 0
|
||||
BTPROTO_HCI = 1
|
||||
BTPROTO_SCO = 2
|
||||
BTPROTO_RFCOMM = 3
|
||||
BTPROTO_BNEP = 4
|
||||
BTPROTO_CMTP = 5
|
||||
BTPROTO_HIDP = 6
|
||||
BTPROTO_AVDTP = 7
|
||||
)
|
||||
|
||||
const (
|
||||
HCI_CHANNEL_RAW = 0
|
||||
HCI_CHANNEL_USER = 1
|
||||
HCI_CHANNEL_MONITOR = 2
|
||||
HCI_CHANNEL_CONTROL = 3
|
||||
HCI_CHANNEL_LOGGING = 4
|
||||
)
|
||||
|
||||
// Socketoption Level
|
||||
const (
|
||||
SOL_BLUETOOTH = 0x112
|
||||
SOL_HCI = 0x0
|
||||
SOL_L2CAP = 0x6
|
||||
SOL_RFCOMM = 0x12
|
||||
SOL_SCO = 0x11
|
||||
)
|
|
@ -0,0 +1,196 @@
|
|||
// Copyright 2017 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build freebsd
|
||||
// +build freebsd
|
||||
|
||||
package unix
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"fmt"
|
||||
)
|
||||
|
||||
// Go implementation of C mostly found in /usr/src/sys/kern/subr_capability.c
|
||||
|
||||
const (
|
||||
// This is the version of CapRights this package understands. See C implementation for parallels.
|
||||
capRightsGoVersion = CAP_RIGHTS_VERSION_00
|
||||
capArSizeMin = CAP_RIGHTS_VERSION_00 + 2
|
||||
capArSizeMax = capRightsGoVersion + 2
|
||||
)
|
||||
|
||||
var (
|
||||
bit2idx = []int{
|
||||
-1, 0, 1, -1, 2, -1, -1, -1, 3, -1, -1, -1, -1, -1, -1, -1,
|
||||
4, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
|
||||
}
|
||||
)
|
||||
|
||||
func capidxbit(right uint64) int {
|
||||
return int((right >> 57) & 0x1f)
|
||||
}
|
||||
|
||||
func rightToIndex(right uint64) (int, error) {
|
||||
idx := capidxbit(right)
|
||||
if idx < 0 || idx >= len(bit2idx) {
|
||||
return -2, fmt.Errorf("index for right 0x%x out of range", right)
|
||||
}
|
||||
return bit2idx[idx], nil
|
||||
}
|
||||
|
||||
func caprver(right uint64) int {
|
||||
return int(right >> 62)
|
||||
}
|
||||
|
||||
func capver(rights *CapRights) int {
|
||||
return caprver(rights.Rights[0])
|
||||
}
|
||||
|
||||
func caparsize(rights *CapRights) int {
|
||||
return capver(rights) + 2
|
||||
}
|
||||
|
||||
// CapRightsSet sets the permissions in setrights in rights.
|
||||
func CapRightsSet(rights *CapRights, setrights []uint64) error {
|
||||
// This is essentially a copy of cap_rights_vset()
|
||||
if capver(rights) != CAP_RIGHTS_VERSION_00 {
|
||||
return fmt.Errorf("bad rights version %d", capver(rights))
|
||||
}
|
||||
|
||||
n := caparsize(rights)
|
||||
if n < capArSizeMin || n > capArSizeMax {
|
||||
return errors.New("bad rights size")
|
||||
}
|
||||
|
||||
for _, right := range setrights {
|
||||
if caprver(right) != CAP_RIGHTS_VERSION_00 {
|
||||
return errors.New("bad right version")
|
||||
}
|
||||
i, err := rightToIndex(right)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if i >= n {
|
||||
return errors.New("index overflow")
|
||||
}
|
||||
if capidxbit(rights.Rights[i]) != capidxbit(right) {
|
||||
return errors.New("index mismatch")
|
||||
}
|
||||
rights.Rights[i] |= right
|
||||
if capidxbit(rights.Rights[i]) != capidxbit(right) {
|
||||
return errors.New("index mismatch (after assign)")
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// CapRightsClear clears the permissions in clearrights from rights.
|
||||
func CapRightsClear(rights *CapRights, clearrights []uint64) error {
|
||||
// This is essentially a copy of cap_rights_vclear()
|
||||
if capver(rights) != CAP_RIGHTS_VERSION_00 {
|
||||
return fmt.Errorf("bad rights version %d", capver(rights))
|
||||
}
|
||||
|
||||
n := caparsize(rights)
|
||||
if n < capArSizeMin || n > capArSizeMax {
|
||||
return errors.New("bad rights size")
|
||||
}
|
||||
|
||||
for _, right := range clearrights {
|
||||
if caprver(right) != CAP_RIGHTS_VERSION_00 {
|
||||
return errors.New("bad right version")
|
||||
}
|
||||
i, err := rightToIndex(right)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if i >= n {
|
||||
return errors.New("index overflow")
|
||||
}
|
||||
if capidxbit(rights.Rights[i]) != capidxbit(right) {
|
||||
return errors.New("index mismatch")
|
||||
}
|
||||
rights.Rights[i] &= ^(right & 0x01FFFFFFFFFFFFFF)
|
||||
if capidxbit(rights.Rights[i]) != capidxbit(right) {
|
||||
return errors.New("index mismatch (after assign)")
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// CapRightsIsSet checks whether all the permissions in setrights are present in rights.
|
||||
func CapRightsIsSet(rights *CapRights, setrights []uint64) (bool, error) {
|
||||
// This is essentially a copy of cap_rights_is_vset()
|
||||
if capver(rights) != CAP_RIGHTS_VERSION_00 {
|
||||
return false, fmt.Errorf("bad rights version %d", capver(rights))
|
||||
}
|
||||
|
||||
n := caparsize(rights)
|
||||
if n < capArSizeMin || n > capArSizeMax {
|
||||
return false, errors.New("bad rights size")
|
||||
}
|
||||
|
||||
for _, right := range setrights {
|
||||
if caprver(right) != CAP_RIGHTS_VERSION_00 {
|
||||
return false, errors.New("bad right version")
|
||||
}
|
||||
i, err := rightToIndex(right)
|
||||
if err != nil {
|
||||
return false, err
|
||||
}
|
||||
if i >= n {
|
||||
return false, errors.New("index overflow")
|
||||
}
|
||||
if capidxbit(rights.Rights[i]) != capidxbit(right) {
|
||||
return false, errors.New("index mismatch")
|
||||
}
|
||||
if (rights.Rights[i] & right) != right {
|
||||
return false, nil
|
||||
}
|
||||
}
|
||||
|
||||
return true, nil
|
||||
}
|
||||
|
||||
func capright(idx uint64, bit uint64) uint64 {
|
||||
return ((1 << (57 + idx)) | bit)
|
||||
}
|
||||
|
||||
// CapRightsInit returns a pointer to an initialised CapRights structure filled with rights.
|
||||
// See man cap_rights_init(3) and rights(4).
|
||||
func CapRightsInit(rights []uint64) (*CapRights, error) {
|
||||
var r CapRights
|
||||
r.Rights[0] = (capRightsGoVersion << 62) | capright(0, 0)
|
||||
r.Rights[1] = capright(1, 0)
|
||||
|
||||
err := CapRightsSet(&r, rights)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return &r, nil
|
||||
}
|
||||
|
||||
// CapRightsLimit reduces the operations permitted on fd to at most those contained in rights.
|
||||
// The capability rights on fd can never be increased by CapRightsLimit.
|
||||
// See man cap_rights_limit(2) and rights(4).
|
||||
func CapRightsLimit(fd uintptr, rights *CapRights) error {
|
||||
return capRightsLimit(int(fd), rights)
|
||||
}
|
||||
|
||||
// CapRightsGet returns a CapRights structure containing the operations permitted on fd.
|
||||
// See man cap_rights_get(3) and rights(4).
|
||||
func CapRightsGet(fd uintptr) (*CapRights, error) {
|
||||
r, err := CapRightsInit(nil)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
err = capRightsGet(capRightsGoVersion, int(fd), r)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return r, nil
|
||||
}
|
|
@ -0,0 +1,14 @@
|
|||
// Copyright 2015 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos
|
||||
// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris zos
|
||||
|
||||
package unix
|
||||
|
||||
const (
|
||||
R_OK = 0x4
|
||||
W_OK = 0x2
|
||||
X_OK = 0x1
|
||||
)
|
|
@ -0,0 +1,120 @@
|
|||
// Copyright 2012 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build linux
|
||||
// +build linux
|
||||
|
||||
package unix_test
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"net"
|
||||
"os"
|
||||
"testing"
|
||||
|
||||
"golang.org/x/sys/unix"
|
||||
)
|
||||
|
||||
// TestSCMCredentials tests the sending and receiving of credentials
|
||||
// (PID, UID, GID) in an ancillary message between two UNIX
|
||||
// sockets. The SO_PASSCRED socket option is enabled on the sending
|
||||
// socket for this to work.
|
||||
func TestSCMCredentials(t *testing.T) {
|
||||
socketTypeTests := []struct {
|
||||
socketType int
|
||||
dataLen int
|
||||
}{
|
||||
{
|
||||
unix.SOCK_STREAM,
|
||||
1,
|
||||
}, {
|
||||
unix.SOCK_DGRAM,
|
||||
0,
|
||||
},
|
||||
}
|
||||
|
||||
for _, tt := range socketTypeTests {
|
||||
fds, err := unix.Socketpair(unix.AF_LOCAL, tt.socketType, 0)
|
||||
if err != nil {
|
||||
t.Fatalf("Socketpair: %v", err)
|
||||
}
|
||||
|
||||
err = unix.SetsockoptInt(fds[0], unix.SOL_SOCKET, unix.SO_PASSCRED, 1)
|
||||
if err != nil {
|
||||
unix.Close(fds[0])
|
||||
unix.Close(fds[1])
|
||||
t.Fatalf("SetsockoptInt: %v", err)
|
||||
}
|
||||
|
||||
srvFile := os.NewFile(uintptr(fds[0]), "server")
|
||||
cliFile := os.NewFile(uintptr(fds[1]), "client")
|
||||
defer srvFile.Close()
|
||||
defer cliFile.Close()
|
||||
|
||||
srv, err := net.FileConn(srvFile)
|
||||
if err != nil {
|
||||
t.Errorf("FileConn: %v", err)
|
||||
return
|
||||
}
|
||||
defer srv.Close()
|
||||
|
||||
cli, err := net.FileConn(cliFile)
|
||||
if err != nil {
|
||||
t.Errorf("FileConn: %v", err)
|
||||
return
|
||||
}
|
||||
defer cli.Close()
|
||||
|
||||
var ucred unix.Ucred
|
||||
ucred.Pid = int32(os.Getpid())
|
||||
ucred.Uid = uint32(os.Getuid())
|
||||
ucred.Gid = uint32(os.Getgid())
|
||||
oob := unix.UnixCredentials(&ucred)
|
||||
|
||||
// On SOCK_STREAM, this is internally going to send a dummy byte
|
||||
n, oobn, err := cli.(*net.UnixConn).WriteMsgUnix(nil, oob, nil)
|
||||
if err != nil {
|
||||
t.Fatalf("WriteMsgUnix: %v", err)
|
||||
}
|
||||
if n != 0 {
|
||||
t.Fatalf("WriteMsgUnix n = %d, want 0", n)
|
||||
}
|
||||
if oobn != len(oob) {
|
||||
t.Fatalf("WriteMsgUnix oobn = %d, want %d", oobn, len(oob))
|
||||
}
|
||||
|
||||
oob2 := make([]byte, 10*len(oob))
|
||||
n, oobn2, flags, _, err := srv.(*net.UnixConn).ReadMsgUnix(nil, oob2)
|
||||
if err != nil {
|
||||
t.Fatalf("ReadMsgUnix: %v", err)
|
||||
}
|
||||
if flags != 0 && flags != unix.MSG_CMSG_CLOEXEC {
|
||||
t.Fatalf("ReadMsgUnix flags = %#x, want 0 or %#x (MSG_CMSG_CLOEXEC)", flags, unix.MSG_CMSG_CLOEXEC)
|
||||
}
|
||||
if n != tt.dataLen {
|
||||
t.Fatalf("ReadMsgUnix n = %d, want %d", n, tt.dataLen)
|
||||
}
|
||||
if oobn2 != oobn {
|
||||
// without SO_PASSCRED set on the socket, ReadMsgUnix will
|
||||
// return zero oob bytes
|
||||
t.Fatalf("ReadMsgUnix oobn = %d, want %d", oobn2, oobn)
|
||||
}
|
||||
oob2 = oob2[:oobn2]
|
||||
if !bytes.Equal(oob, oob2) {
|
||||
t.Fatal("ReadMsgUnix oob bytes don't match")
|
||||
}
|
||||
|
||||
scm, err := unix.ParseSocketControlMessage(oob2)
|
||||
if err != nil {
|
||||
t.Fatalf("ParseSocketControlMessage: %v", err)
|
||||
}
|
||||
newUcred, err := unix.ParseUnixCredentials(&scm[0])
|
||||
if err != nil {
|
||||
t.Fatalf("ParseUnixCredentials: %v", err)
|
||||
}
|
||||
if *newUcred != ucred {
|
||||
t.Fatalf("ParseUnixCredentials = %+v, want %+v", newUcred, ucred)
|
||||
}
|
||||
}
|
||||
}
|
|
@ -0,0 +1,210 @@
|
|||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build darwin && go1.12 && amd64
|
||||
// +build darwin,go1.12,amd64
|
||||
|
||||
package unix
|
||||
|
||||
import (
|
||||
"os"
|
||||
"os/exec"
|
||||
"strings"
|
||||
"testing"
|
||||
)
|
||||
|
||||
type darwinTest struct {
|
||||
name string
|
||||
f uintptr
|
||||
}
|
||||
|
||||
// TODO(khr): decide whether to keep this test enabled permanently or
|
||||
// only temporarily.
|
||||
func TestDarwinLoader(t *testing.T) {
|
||||
// Make sure the Darwin dynamic loader can actually resolve
|
||||
// all the system calls into libSystem.dylib. Unfortunately
|
||||
// there is no easy way to test this at compile time. So we
|
||||
// implement a crazy hack here, calling into the syscall
|
||||
// function with all its arguments set to junk, and see what
|
||||
// error we get. We are happy with any error (or none) except
|
||||
// an error from the dynamic loader.
|
||||
//
|
||||
// We have to run each test in a separate subprocess for fault isolation.
|
||||
//
|
||||
// Hopefully the junk args won't accidentally ask the system to do "rm -fr /".
|
||||
//
|
||||
// In an ideal world each syscall would have its own test, so this test
|
||||
// would be unnecessary. Unfortunately, we do not live in that world.
|
||||
for _, test := range darwinTests {
|
||||
// Call the test binary recursively, giving it a magic argument
|
||||
// (see init below) and the name of the test to run.
|
||||
cmd := exec.Command(os.Args[0], "testDarwinLoader", test.name)
|
||||
|
||||
// Run subprocess, collect results. Note that we expect the subprocess
|
||||
// to fail somehow, so the error is irrelevant.
|
||||
out, _ := cmd.CombinedOutput()
|
||||
|
||||
if strings.Contains(string(out), "dyld: Symbol not found:") {
|
||||
t.Errorf("can't resolve %s in libSystem.dylib", test.name)
|
||||
}
|
||||
if !strings.Contains(string(out), "success") {
|
||||
// Not really an error. Might be a syscall that never returns,
|
||||
// like exit, or one that segfaults, like gettimeofday.
|
||||
t.Logf("test never finished: %s: %s", test.name, string(out))
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func init() {
|
||||
// The test binary execs itself with the "testDarwinLoader" argument.
|
||||
// Run the test specified by os.Args[2], then panic.
|
||||
if len(os.Args) >= 3 && os.Args[1] == "testDarwinLoader" {
|
||||
for _, test := range darwinTests {
|
||||
if test.name == os.Args[2] {
|
||||
syscall_syscall(test.f, ^uintptr(0), ^uintptr(0), ^uintptr(0))
|
||||
}
|
||||
}
|
||||
// Panic with a "success" label, so the parent process can check it.
|
||||
panic("success")
|
||||
}
|
||||
}
|
||||
|
||||
// All the _trampoline functions in zsyscall_darwin_$ARCH.s
|
||||
var darwinTests = [...]darwinTest{
|
||||
{"getgroups", libc_getgroups_trampoline_addr},
|
||||
{"setgroups", libc_setgroups_trampoline_addr},
|
||||
{"wait4", libc_wait4_trampoline_addr},
|
||||
{"accept", libc_accept_trampoline_addr},
|
||||
{"bind", libc_bind_trampoline_addr},
|
||||
{"connect", libc_connect_trampoline_addr},
|
||||
{"socket", libc_socket_trampoline_addr},
|
||||
{"getsockopt", libc_getsockopt_trampoline_addr},
|
||||
{"setsockopt", libc_setsockopt_trampoline_addr},
|
||||
{"getpeername", libc_getpeername_trampoline_addr},
|
||||
{"getsockname", libc_getsockname_trampoline_addr},
|
||||
{"shutdown", libc_shutdown_trampoline_addr},
|
||||
{"socketpair", libc_socketpair_trampoline_addr},
|
||||
{"recvfrom", libc_recvfrom_trampoline_addr},
|
||||
{"sendto", libc_sendto_trampoline_addr},
|
||||
{"recvmsg", libc_recvmsg_trampoline_addr},
|
||||
{"sendmsg", libc_sendmsg_trampoline_addr},
|
||||
{"kevent", libc_kevent_trampoline_addr},
|
||||
{"sysctl", libc_sysctl_trampoline_addr},
|
||||
{"utimes", libc_utimes_trampoline_addr},
|
||||
{"futimes", libc_futimes_trampoline_addr},
|
||||
{"fcntl", libc_fcntl_trampoline_addr},
|
||||
{"poll", libc_poll_trampoline_addr},
|
||||
{"madvise", libc_madvise_trampoline_addr},
|
||||
{"mlock", libc_mlock_trampoline_addr},
|
||||
{"mlockall", libc_mlockall_trampoline_addr},
|
||||
{"mprotect", libc_mprotect_trampoline_addr},
|
||||
{"msync", libc_msync_trampoline_addr},
|
||||
{"munlock", libc_munlock_trampoline_addr},
|
||||
{"munlockall", libc_munlockall_trampoline_addr},
|
||||
{"ptrace", libc_ptrace_trampoline_addr},
|
||||
{"pipe", libc_pipe_trampoline_addr},
|
||||
{"getxattr", libc_getxattr_trampoline_addr},
|
||||
{"fgetxattr", libc_fgetxattr_trampoline_addr},
|
||||
{"setxattr", libc_setxattr_trampoline_addr},
|
||||
{"fsetxattr", libc_fsetxattr_trampoline_addr},
|
||||
{"removexattr", libc_removexattr_trampoline_addr},
|
||||
{"fremovexattr", libc_fremovexattr_trampoline_addr},
|
||||
{"listxattr", libc_listxattr_trampoline_addr},
|
||||
{"flistxattr", libc_flistxattr_trampoline_addr},
|
||||
{"kill", libc_kill_trampoline_addr},
|
||||
{"ioctl", libc_ioctl_trampoline_addr},
|
||||
{"access", libc_access_trampoline_addr},
|
||||
{"adjtime", libc_adjtime_trampoline_addr},
|
||||
{"chdir", libc_chdir_trampoline_addr},
|
||||
{"chflags", libc_chflags_trampoline_addr},
|
||||
{"chmod", libc_chmod_trampoline_addr},
|
||||
{"chown", libc_chown_trampoline_addr},
|
||||
{"chroot", libc_chroot_trampoline_addr},
|
||||
{"close", libc_close_trampoline_addr},
|
||||
{"dup", libc_dup_trampoline_addr},
|
||||
{"dup2", libc_dup2_trampoline_addr},
|
||||
{"exchangedata", libc_exchangedata_trampoline_addr},
|
||||
{"exit", libc_exit_trampoline_addr},
|
||||
{"faccessat", libc_faccessat_trampoline_addr},
|
||||
{"fchdir", libc_fchdir_trampoline_addr},
|
||||
{"fchflags", libc_fchflags_trampoline_addr},
|
||||
{"fchmod", libc_fchmod_trampoline_addr},
|
||||
{"fchmodat", libc_fchmodat_trampoline_addr},
|
||||
{"fchown", libc_fchown_trampoline_addr},
|
||||
{"fchownat", libc_fchownat_trampoline_addr},
|
||||
{"flock", libc_flock_trampoline_addr},
|
||||
{"fpathconf", libc_fpathconf_trampoline_addr},
|
||||
{"fstat64", libc_fstat64_trampoline_addr},
|
||||
{"fstatat64", libc_fstatat64_trampoline_addr},
|
||||
{"fstatfs64", libc_fstatfs64_trampoline_addr},
|
||||
{"fsync", libc_fsync_trampoline_addr},
|
||||
{"ftruncate", libc_ftruncate_trampoline_addr},
|
||||
{"getdtablesize", libc_getdtablesize_trampoline_addr},
|
||||
{"getegid", libc_getegid_trampoline_addr},
|
||||
{"geteuid", libc_geteuid_trampoline_addr},
|
||||
{"getgid", libc_getgid_trampoline_addr},
|
||||
{"getpgid", libc_getpgid_trampoline_addr},
|
||||
{"getpgrp", libc_getpgrp_trampoline_addr},
|
||||
{"getpid", libc_getpid_trampoline_addr},
|
||||
{"getppid", libc_getppid_trampoline_addr},
|
||||
{"getpriority", libc_getpriority_trampoline_addr},
|
||||
{"getrlimit", libc_getrlimit_trampoline_addr},
|
||||
{"getrusage", libc_getrusage_trampoline_addr},
|
||||
{"getsid", libc_getsid_trampoline_addr},
|
||||
{"getuid", libc_getuid_trampoline_addr},
|
||||
{"issetugid", libc_issetugid_trampoline_addr},
|
||||
{"kqueue", libc_kqueue_trampoline_addr},
|
||||
{"lchown", libc_lchown_trampoline_addr},
|
||||
{"link", libc_link_trampoline_addr},
|
||||
{"linkat", libc_linkat_trampoline_addr},
|
||||
{"listen", libc_listen_trampoline_addr},
|
||||
{"lstat64", libc_lstat64_trampoline_addr},
|
||||
{"mkdir", libc_mkdir_trampoline_addr},
|
||||
{"mkdirat", libc_mkdirat_trampoline_addr},
|
||||
{"mkfifo", libc_mkfifo_trampoline_addr},
|
||||
{"mknod", libc_mknod_trampoline_addr},
|
||||
{"open", libc_open_trampoline_addr},
|
||||
{"openat", libc_openat_trampoline_addr},
|
||||
{"pathconf", libc_pathconf_trampoline_addr},
|
||||
{"pread", libc_pread_trampoline_addr},
|
||||
{"pwrite", libc_pwrite_trampoline_addr},
|
||||
{"read", libc_read_trampoline_addr},
|
||||
{"readlink", libc_readlink_trampoline_addr},
|
||||
{"readlinkat", libc_readlinkat_trampoline_addr},
|
||||
{"rename", libc_rename_trampoline_addr},
|
||||
{"renameat", libc_renameat_trampoline_addr},
|
||||
{"revoke", libc_revoke_trampoline_addr},
|
||||
{"rmdir", libc_rmdir_trampoline_addr},
|
||||
{"lseek", libc_lseek_trampoline_addr},
|
||||
{"select", libc_select_trampoline_addr},
|
||||
{"setegid", libc_setegid_trampoline_addr},
|
||||
{"seteuid", libc_seteuid_trampoline_addr},
|
||||
{"setgid", libc_setgid_trampoline_addr},
|
||||
{"setlogin", libc_setlogin_trampoline_addr},
|
||||
{"setpgid", libc_setpgid_trampoline_addr},
|
||||
{"setpriority", libc_setpriority_trampoline_addr},
|
||||
{"setprivexec", libc_setprivexec_trampoline_addr},
|
||||
{"setregid", libc_setregid_trampoline_addr},
|
||||
{"setreuid", libc_setreuid_trampoline_addr},
|
||||
{"setrlimit", libc_setrlimit_trampoline_addr},
|
||||
{"setsid", libc_setsid_trampoline_addr},
|
||||
{"settimeofday", libc_settimeofday_trampoline_addr},
|
||||
{"setuid", libc_setuid_trampoline_addr},
|
||||
{"stat64", libc_stat64_trampoline_addr},
|
||||
{"statfs64", libc_statfs64_trampoline_addr},
|
||||
{"symlink", libc_symlink_trampoline_addr},
|
||||
{"symlinkat", libc_symlinkat_trampoline_addr},
|
||||
{"sync", libc_sync_trampoline_addr},
|
||||
{"truncate", libc_truncate_trampoline_addr},
|
||||
{"umask", libc_umask_trampoline_addr},
|
||||
{"undelete", libc_undelete_trampoline_addr},
|
||||
{"unlink", libc_unlink_trampoline_addr},
|
||||
{"unlinkat", libc_unlinkat_trampoline_addr},
|
||||
{"unmount", libc_unmount_trampoline_addr},
|
||||
{"write", libc_write_trampoline_addr},
|
||||
{"mmap", libc_mmap_trampoline_addr},
|
||||
{"munmap", libc_munmap_trampoline_addr},
|
||||
{"gettimeofday", libc_gettimeofday_trampoline_addr},
|
||||
{"getfsstat64", libc_getfsstat64_trampoline_addr},
|
||||
}
|
|
@ -0,0 +1,27 @@
|
|||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build aix && ppc
|
||||
// +build aix,ppc
|
||||
|
||||
// Functions to access/create device major and minor numbers matching the
|
||||
// encoding used by AIX.
|
||||
|
||||
package unix
|
||||
|
||||
// Major returns the major component of a Linux device number.
|
||||
func Major(dev uint64) uint32 {
|
||||
return uint32((dev >> 16) & 0xffff)
|
||||
}
|
||||
|
||||
// Minor returns the minor component of a Linux device number.
|
||||
func Minor(dev uint64) uint32 {
|
||||
return uint32(dev & 0xffff)
|
||||
}
|
||||
|
||||
// Mkdev returns a Linux device number generated from the given major and minor
|
||||
// components.
|
||||
func Mkdev(major, minor uint32) uint64 {
|
||||
return uint64(((major) << 16) | (minor))
|
||||
}
|
|
@ -0,0 +1,29 @@
|
|||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build aix && ppc64
|
||||
// +build aix,ppc64
|
||||
|
||||
// Functions to access/create device major and minor numbers matching the
|
||||
// encoding used AIX.
|
||||
|
||||
package unix
|
||||
|
||||
// Major returns the major component of a Linux device number.
|
||||
func Major(dev uint64) uint32 {
|
||||
return uint32((dev & 0x3fffffff00000000) >> 32)
|
||||
}
|
||||
|
||||
// Minor returns the minor component of a Linux device number.
|
||||
func Minor(dev uint64) uint32 {
|
||||
return uint32((dev & 0x00000000ffffffff) >> 0)
|
||||
}
|
||||
|
||||
// Mkdev returns a Linux device number generated from the given major and minor
|
||||
// components.
|
||||
func Mkdev(major, minor uint32) uint64 {
|
||||
var DEVNO64 uint64
|
||||
DEVNO64 = 0x8000000000000000
|
||||
return ((uint64(major) << 32) | (uint64(minor) & 0x00000000FFFFFFFF) | DEVNO64)
|
||||
}
|
|
@ -0,0 +1,24 @@
|
|||
// Copyright 2017 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Functions to access/create device major and minor numbers matching the
|
||||
// encoding used in Darwin's sys/types.h header.
|
||||
|
||||
package unix
|
||||
|
||||
// Major returns the major component of a Darwin device number.
|
||||
func Major(dev uint64) uint32 {
|
||||
return uint32((dev >> 24) & 0xff)
|
||||
}
|
||||
|
||||
// Minor returns the minor component of a Darwin device number.
|
||||
func Minor(dev uint64) uint32 {
|
||||
return uint32(dev & 0xffffff)
|
||||
}
|
||||
|
||||
// Mkdev returns a Darwin device number generated from the given major and minor
|
||||
// components.
|
||||
func Mkdev(major, minor uint32) uint64 {
|
||||
return (uint64(major) << 24) | uint64(minor)
|
||||
}
|
|
@ -0,0 +1,30 @@
|
|||
// Copyright 2017 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Functions to access/create device major and minor numbers matching the
|
||||
// encoding used in Dragonfly's sys/types.h header.
|
||||
//
|
||||
// The information below is extracted and adapted from sys/types.h:
|
||||
//
|
||||
// Minor gives a cookie instead of an index since in order to avoid changing the
|
||||
// meanings of bits 0-15 or wasting time and space shifting bits 16-31 for
|
||||
// devices that don't use them.
|
||||
|
||||
package unix
|
||||
|
||||
// Major returns the major component of a DragonFlyBSD device number.
|
||||
func Major(dev uint64) uint32 {
|
||||
return uint32((dev >> 8) & 0xff)
|
||||
}
|
||||
|
||||
// Minor returns the minor component of a DragonFlyBSD device number.
|
||||
func Minor(dev uint64) uint32 {
|
||||
return uint32(dev & 0xffff00ff)
|
||||
}
|
||||
|
||||
// Mkdev returns a DragonFlyBSD device number generated from the given major and
|
||||
// minor components.
|
||||
func Mkdev(major, minor uint32) uint64 {
|
||||
return (uint64(major) << 8) | uint64(minor)
|
||||
}
|
Some files were not shown because too many files have changed in this diff Show More
Loading…
Reference in New Issue