792e51b721
This patch adds the long double functions missing in newlib to Cygwin.
Apart from some self-written additions (exp10l, finite{f,l}, isinf{f,l},
isnan{f,l}, pow10l) the files are taken from the Mingw-w64 math lib.
Minor changes were required, e.g. substitue _WIN64 with __x86_64__ and
fixing __FLT_RPT_DOMAIN/__FLT_RPT_ERANGE for Cygwin.
Cygwin:
* math: New subdir with math functions.
* Makefile.in (VPATH): Add math subdir.
(MATH_OFILES): List of object files collected from building files in
math subdir.
(DLL_OFILES): Add $(MATH_OFILES).
${CURDIR}/libm.a: Add $(MATH_OFILES) to build.
* common.din: Add new functions from math subdir.
* i686.din: Align to new math subdir. Remove functions now commonly
available.
* x86_64.din: Ditto.
* math.h: math.h wrapper to define mingw structs used in some files in
math subdir.
* include/cygwin/version.h: Bump API minor version.
newlib:
* libc/include/complex.h: Add prototypes for complex long double
functions. Only define for Cygwin.
* libc/include/math.h: Additionally enable prototypes of long double
functions for Cygwin. Add Cygwin-only prototypes for dreml, sincosl,
exp10l and pow10l. Explain why we don't add them to newlib.
* libc/include/tgmath.h: Enable long double handling on Cygwin.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
58 lines
1.1 KiB
ArmAsm
58 lines
1.1 KiB
ArmAsm
/**
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* This file has no copyright assigned and is placed in the Public Domain.
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* This file is part of the mingw-w64 runtime package.
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* No warranty is given; refer to the file DISCLAIMER.PD within this package.
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*/
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#include <_mingw_mac.h>
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.file "nearbyint.S"
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.text
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#ifdef __x86_64__
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.align 8
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#else
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.align 4
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#endif
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.globl __MINGW_USYMBOL(nearbyint)
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.def __MINGW_USYMBOL(nearbyint); .scl 2; .type 32; .endef
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__MINGW_USYMBOL(nearbyint):
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#if defined(_AMD64_) || defined(__x86_64__)
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movsd %xmm0,-16(%rsp)
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fldl -16(%rsp)
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pushq %rax
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pushq %rcx
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fnstcw (%rsp)
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movq (%rsp), %rax
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orq $0x20, %rax
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movq %rax, 8(%rsp)
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fldcw 8(%rsp)
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frndint
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fclex
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fldcw (%rsp)
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popq %rcx
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popq %rax
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fstpl -16(%rsp)
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movsd -16(%rsp),%xmm0
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ret
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#elif defined(_ARM_) || defined(__arm__)
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vmrs r1, fpscr
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vcvtr.s32.f64 s0, d0
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vcvt.f64.s32 d0, s0
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vmsr fpscr, r1
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bx lr
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#elif defined(_X86_) || defined(__i386__)
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fldl 4(%esp)
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pushl %eax
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pushl %ecx
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fnstcw (%esp)
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movl (%esp), %eax
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orl $0x20, %eax
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movl %eax, 4(%esp)
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fldcw 4(%esp)
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frndint
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fclex
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fldcw (%esp)
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popl %ecx
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popl %eax
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ret
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#endif
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