2012-11-12 Steve Ellcey <sellcey@mips.com>
* libc/machine/mips/machine/asm.h: New. * libc/machine/mips/machine/regdef.h: Update register definitions for different ABI's.
This commit is contained in:
Steve Ellcey
@@ -1,3 +1,9 @@
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||||
2012-11-12 Steve Ellcey <sellcey@mips.com>
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* libc/machine/mips/machine/asm.h: New.
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* libc/machine/mips/machine/regdef.h: Update register definitions
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for different ABI's.
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2012-11-11 Christopher Faylor <me.cygwin2012@cgf.cx>
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* libc/include/sys/time.h: Avoid guarding other than timeval
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361
newlib/libc/machine/mips/machine/asm.h
Normal file
361
newlib/libc/machine/mips/machine/asm.h
Normal file
@@ -0,0 +1,361 @@
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||||
/*
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||||
* Copyright (c) 1996-2007 MIPS Technologies, Inc.
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||||
* Copyright (C) 2009 CodeSourcery, LLC.
|
||||
*
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* * Redistributions in binary form must reproduce the above
|
||||
* copyright
|
||||
* notice, this list of conditions and the following disclaimer
|
||||
* in the documentation and/or other materials provided with
|
||||
* the distribution.
|
||||
* * Neither the name of MIPS Technologies Inc. nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
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||||
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||||
/*
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* asm.h: various macros to help assembly language writers
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*/
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#ifndef _MIPS_ASM_H_
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#define _MIPS_ASM_H_
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/* ABI specific stack frame layout and manipulation. */
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#if _MIPS_SIM==_ABIO32 && ! __mips64
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/* Standard O32 */
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#define SZREG 4 /* saved register size */
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#define REG_S sw /* store saved register */
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#define REG_L lw /* load saved register */
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#define SZARG 4 /* argument register size */
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#define NARGSAVE 4 /* arg register space on caller stack */
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#define ALSZ 7 /* stack alignment - 1 */
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#define ALMASK (~7) /* stack alignment mask */
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#define LOG2_STACK_ALGN 3 /* log2(8) */
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#define SZPTR 4 /* pointer size */
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#define LOG2_SZPTR 2 /* log2(4) */
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#define PTR_S sw /* store pointer */
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#define PTR_L lw /* load pointer */
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#define PTR_SUBU subu /* decrement pointer */
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#define PTR_ADDU addu /* increment pointer */
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#define PTR .word /* pointer type pseudo */
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#elif _MIPS_SIM==_ABIO32 && __mips64
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/* Algorithmics O32+64-bit */
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#define SZREG 8 /* saved register size */
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#define REG_S sd /* store saved register */
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#define REG_L ld /* load saved register */
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#define SZARG 4 /* argument register size */
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#define NARGSAVE 4 /* arg register space on caller stack */
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#define ALSZ 7 /* stack alignment - 1 */
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#define ALMASK (~7) /* stack alignment mask */
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#define LOG2_STACK_ALGN 3 /* log2(8) */
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#define SZPTR 4 /* pointer size */
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#define LOG2_SZPTR 2 /* log2(4) */
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#define PTR_S sw /* store pointer */
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#define PTR_L lw /* load pointer */
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#define PTR_SUBU subu /* decrement pointer */
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#define PTR_ADDU addu /* increment pointer */
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#define PTR .word /* pointer type pseudo */
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#elif _MIPS_SIM==_ABIO64
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/* Cygnus O64 */
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#define SZREG 8 /* saved register size */
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#define REG_S sd /* store saved register */
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#define REG_L ld /* load saved register */
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#define SZARG 8 /* argument register size */
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#define NARGSAVE 4 /* arg register space on caller stack */
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#define ALSZ 7 /* stack alignment - 1 */
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#define ALMASK (~7) /* stack alignment mask */
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#define LOG2_STACK_ALGN 3 /* log2(8) */
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#define SZPTR 4 /* pointer size */
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#define LOG2_SZPTR 2 /* log2(4) */
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#define PTR_S sw /* store pointer */
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#define PTR_L lw /* load pointer */
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#define PTR_SUBU subu /* decrement pointer */
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#define PTR_ADDU addu /* increment pointer */
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#define PTR .word /* pointer type pseudo */
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#elif _MIPS_SIM==_ABIN32
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/* Standard N32 */
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#define SZREG 8 /* saved register size */
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#define REG_S sd /* store saved register */
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#define REG_L ld /* load saved register */
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#define SZARG 8 /* argument register size */
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#define NARGSAVE 0 /* arg register space on caller stack */
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#define ALSZ 15 /* stack alignment - 1 */
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#define ALMASK (~15) /* stack alignment mask */
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#define LOG2_STACK_ALGN 4 /* log2(16) */
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#define SZPTR 4 /* pointer size */
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#define LOG2_SZPTR 2 /* log2(4) */
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#define PTR_S sw /* store pointer */
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#define PTR_L lw /* load pointer */
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#define PTR_SUBU subu /* decrement pointer (SGI uses sub) */
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#define PTR_ADDU addu /* increment pointer (SGI uses add) */
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#define PTR .word /* pointer type pseudo */
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#elif _MIPS_SIM==_ABI64
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/* Standard N64 */
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#define SZREG 8 /* saved register size */
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#define REG_S sd /* store saved register */
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#define REG_L ld /* load saved register */
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||||
#define SZARG 8 /* argument register size */
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#define NARGSAVE 0 /* arg register space on caller stack */
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#define ALSZ 15 /* stack alignment - 1 */
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#define ALMASK (~15) /* stack alignment mask */
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#define LOG2_STACK_ALGN 4 /* log2(16) */
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#define SZPTR 8 /* pointer size */
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#define LOG2_SZPTR 3 /* log2(8) */
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#define PTR_S sd /* store pointer */
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#define PTR_L ld /* load pointer */
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#define PTR_SUBU dsubu /* decrement pointer */
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#define PTR_ADDU daddu /* increment pointer */
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#define PTR .dword /* pointer type pseudo */
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#else
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#error Unknown ABI
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#endif
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/* Concatenate two names. */
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#ifdef __STDC__
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# define _ASMCONCAT(A, B) A ## B
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#else
|
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# define _ASMCONCAT(A, B) A/**/B
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#endif
|
||||
|
||||
/* Name of reset code section. */
|
||||
#ifndef _RESET_SECTION
|
||||
# define _RESET_SECTION .section .reset, "ax", @progbits
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#endif
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||||
|
||||
#ifndef _RESET_SECTION_NAMED
|
||||
/* No function section support for now, since binutils fails to cope with
|
||||
external branches. */
|
||||
# define _RESET_SECTION_NAMED(name) .pushsection .reset, "ax", @progbits
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#endif
|
||||
|
||||
/* Name of boot code section. */
|
||||
#ifndef _BOOT_SECTION
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# define _BOOT_SECTION .section .boot, "ax", @progbits
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||||
#endif
|
||||
|
||||
#ifndef _BOOT_SECTION_NAMED
|
||||
/* No function section support for now, since binutils fails to cope with
|
||||
external branches. */
|
||||
# define _BOOT_SECTION_NAMED(name) .pushsection .boot, "ax", @progbits
|
||||
#endif
|
||||
|
||||
/* Name of standard code section. */
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#ifndef _NORMAL_SECTION_UNNAMED
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# define _NORMAL_SECTION_UNNAMED .section .text, "ax", @progbits
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||||
#endif
|
||||
|
||||
#ifndef _NORMAL_SECTION_NAMED
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# ifdef _FUNCTION_SECTIONS_
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# define _NORMAL_SECTION_NAMED(name) .pushsection .text ##.name, "ax", @progbits
|
||||
# else
|
||||
# define _NORMAL_SECTION_NAMED(name) .pushsection .text, "ax", @progbits
|
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# endif
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||||
#endif
|
||||
|
||||
/* Default code section. */
|
||||
#ifndef _TEXT_SECTION_NAMED
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# if defined(_RESETCODE)
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# define _TEXT_SECTION_NAMED _RESET_SECTION_NAMED
|
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# elif defined(_BOOTCODE)
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# define _TEXT_SECTION_NAMED _BOOT_SECTION_NAMED
|
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# else
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# define _TEXT_SECTION_NAMED _NORMAL_SECTION_NAMED
|
||||
# endif
|
||||
#endif
|
||||
|
||||
#ifndef _TEXT_SECTION
|
||||
# if defined(_RESETCODE)
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# define _TEXT_SECTION _RESET_SECTION
|
||||
# elif defined(_BOOTCODE)
|
||||
# define _TEXT_SECTION _BOOT_SECTION
|
||||
# else
|
||||
# define _TEXT_SECTION _NORMAL_SECTION_UNNAMED
|
||||
# endif
|
||||
_TEXT_SECTION
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Leaf functions declarations.
|
||||
*/
|
||||
|
||||
/* Global leaf function. */
|
||||
#define LEAF(name) \
|
||||
_TEXT_SECTION_NAMED(name); \
|
||||
.globl name; \
|
||||
.balign 4; \
|
||||
.ent name; \
|
||||
name:
|
||||
|
||||
/* Static/Local leaf function. */
|
||||
#define SLEAF(name) \
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||||
_TEXT_SECTION_NAMED(name); \
|
||||
.balign 4; \
|
||||
.ent name; \
|
||||
name:
|
||||
|
||||
/* Weak leaf function. */
|
||||
#define WLEAF(name) \
|
||||
_TEXT_SECTION_NAMED(name); \
|
||||
.weakext name; \
|
||||
.balign 4; \
|
||||
.ent name; \
|
||||
name:
|
||||
|
||||
/* Weak alias leaf function. */
|
||||
#define ALEAF(name,alias) \
|
||||
_TEXT_SECTION_NAMED(name); \
|
||||
.weakext alias,name; \
|
||||
.balign 4; \
|
||||
.ent name; \
|
||||
name:
|
||||
|
||||
/*
|
||||
* Alternative function entrypoints.
|
||||
*/
|
||||
|
||||
/* Global alternative entrypoint. */
|
||||
#define AENT(name) \
|
||||
.globl name; \
|
||||
.balign 4; \
|
||||
.aent name; \
|
||||
name:
|
||||
#define XLEAF(name) AENT(name)
|
||||
|
||||
/* Local/static alternative entrypoint. */
|
||||
#define SAENT(name) \
|
||||
.balign 4; \
|
||||
.aent name; \
|
||||
name:
|
||||
#define SXLEAF(name) SAENT(name)
|
||||
|
||||
|
||||
/*
|
||||
* Leaf functions declarations.
|
||||
*/
|
||||
|
||||
/* Global nested function. */
|
||||
#define NESTED(name, framesz, rareg) \
|
||||
_TEXT_SECTION_NAMED(name); \
|
||||
.globl name; \
|
||||
.balign 4; \
|
||||
.ent name; \
|
||||
.frame sp, framesz, rareg; \
|
||||
name:
|
||||
|
||||
/* Static/Local nested function. */
|
||||
#define SNESTED(name, framesz, rareg) \
|
||||
_TEXT_SECTION_NAMED(name); \
|
||||
.balign 4; \
|
||||
.ent name; \
|
||||
.frame sp, framesz, rareg; \
|
||||
name:
|
||||
|
||||
/* Weak nested function. */
|
||||
#define WNESTED(name, framesz, rareg) \
|
||||
_TEXT_SECTION_NAMED(name); \
|
||||
.weakext name; \
|
||||
.balign 4; \
|
||||
.ent name; \
|
||||
.frame sp, framesz, rareg; \
|
||||
name:
|
||||
|
||||
/* Weak alias nested function. */
|
||||
#define ANESTED(name, alias, framesz, rareg) \
|
||||
_TEXT_SECTION_NAMED(name); \
|
||||
.weakext alias, name; \
|
||||
.balign 4; \
|
||||
.ent name; \
|
||||
.frame sp, framesz, rareg; \
|
||||
name:
|
||||
|
||||
/*
|
||||
* Function termination
|
||||
*/
|
||||
#define END(name) \
|
||||
.size name,.-name; \
|
||||
.end name; \
|
||||
.popsection
|
||||
|
||||
#define SEND(name) END(name)
|
||||
#define WEND(name) END(name)
|
||||
#define AEND(name,alias) END(name)
|
||||
|
||||
/*
|
||||
* Global data declaration.
|
||||
*/
|
||||
#define EXPORT(name) \
|
||||
.globl name; \
|
||||
.type name,@object; \
|
||||
name:
|
||||
|
||||
/*
|
||||
* Global data declaration with size.
|
||||
*/
|
||||
#define EXPORTS(name,sz) \
|
||||
.globl name; \
|
||||
.type name,@object; \
|
||||
.size name,sz; \
|
||||
name:
|
||||
|
||||
/*
|
||||
* Weak data declaration with size.
|
||||
*/
|
||||
#define WEXPORT(name,sz) \
|
||||
.weakext name; \
|
||||
.type name,@object; \
|
||||
.size name,sz; \
|
||||
name:
|
||||
|
||||
/*
|
||||
* Global data reference with size.
|
||||
*/
|
||||
#define IMPORT(name, size) \
|
||||
.extern name,size
|
||||
|
||||
/*
|
||||
* Global zeroed data.
|
||||
*/
|
||||
#define BSS(name,size) \
|
||||
.type name,@object; \
|
||||
.comm name,size
|
||||
|
||||
/*
|
||||
* Local zeroed data.
|
||||
*/
|
||||
#define LBSS(name,size) \
|
||||
.lcomm name,size
|
||||
|
||||
/*
|
||||
* Insert call to _mcount if profiling.
|
||||
*/
|
||||
#ifdef __PROFILING__
|
||||
#define _MCOUNT \
|
||||
.set push; \
|
||||
.set noat; \
|
||||
move $1,$31; \
|
||||
jal _mcount; \
|
||||
.set pop
|
||||
#else
|
||||
#define _MCOUNT
|
||||
#endif
|
||||
|
||||
#endif
|
||||
@@ -1,14 +1,70 @@
|
||||
/* regdef.h -- define MIPS register names. */
|
||||
/*
|
||||
* Copyright (c) 1996-2007 MIPS Technologies, Inc.
|
||||
* Copyright (C) 2009 CodeSourcery, LLC.
|
||||
*
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* * Redistributions in binary form must reproduce the above
|
||||
* copyright
|
||||
* notice, this list of conditions and the following disclaimer
|
||||
* in the documentation and/or other materials provided with
|
||||
* the distribution.
|
||||
* * Neither the name of MIPS Technologies Inc. nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#ifndef mips_regdef_h
|
||||
/*
|
||||
* regdef.h : MIPS Rx000 symbolic register names for assembler
|
||||
*/
|
||||
|
||||
#ifndef _MIPS_REGDEF_H_
|
||||
#define _MIPS_REGDEF_H_
|
||||
|
||||
#define zero $0
|
||||
#define v0 $2
|
||||
|
||||
#define AT $1
|
||||
|
||||
#define v0 $2
|
||||
#define v1 $3
|
||||
|
||||
#define a0 $4
|
||||
#define a1 $5
|
||||
#define a2 $6
|
||||
#define a3 $7
|
||||
#define a3 $7
|
||||
|
||||
#if _MIPS_SIM==_ABIN32 || _MIPS_SIM==_ABI64 || _MIPS_SIM==_ABIEABI
|
||||
#define a4 $8
|
||||
#define a5 $9
|
||||
#define a6 $10
|
||||
#define a7 $11
|
||||
#define t0 $12
|
||||
#define t1 $13
|
||||
#define t2 $14
|
||||
#define t3 $15
|
||||
#define ta0 $8 /* alias for $a4 */
|
||||
#define ta1 $9 /* alias for $a5 */
|
||||
#define ta2 $10 /* alias for $a6 */
|
||||
#define ta3 $11 /* alias for $a7 */
|
||||
#else
|
||||
#define t0 $8
|
||||
#define t1 $9
|
||||
#define t2 $10
|
||||
@@ -17,6 +73,12 @@
|
||||
#define t5 $13
|
||||
#define t6 $14
|
||||
#define t7 $15
|
||||
#define ta0 $12 /* alias for $t4 */
|
||||
#define ta1 $13 /* alias for $t5 */
|
||||
#define ta2 $14 /* alias for $t6 */
|
||||
#define ta3 $15 /* alias for $t7 */
|
||||
#endif
|
||||
|
||||
#define s0 $16
|
||||
#define s1 $17
|
||||
#define s2 $18
|
||||
@@ -25,14 +87,17 @@
|
||||
#define s5 $21
|
||||
#define s6 $22
|
||||
#define s7 $23
|
||||
#define s8 $30 /* == fp */
|
||||
|
||||
#define t8 $24
|
||||
#define t9 $25
|
||||
#define k0 $26
|
||||
#define k1 $27
|
||||
#define gp $gp
|
||||
#define sp $sp
|
||||
#define s8 $30
|
||||
#define ra $31
|
||||
#define pc $pc
|
||||
|
||||
#endif /* mips_regdef_h */
|
||||
#define gp $28
|
||||
|
||||
#define sp $29
|
||||
#define fp $30
|
||||
#define ra $31
|
||||
|
||||
#endif
|
||||
|
||||
Reference in New Issue
Block a user