10093276e9
modified: libc/Android.mk
new files: libc/arch-sh/bionic/*
new files: libc/arch-sh/include/*
218 lines
5.3 KiB
C
218 lines
5.3 KiB
C
/* $OpenBSD: asm.h,v 1.1.1.1 2006/10/06 21:02:55 miod Exp $ */
|
|
/* $NetBSD: asm.h,v 1.25 2006/01/20 22:02:40 christos Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1990 The Regents of the University of California.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* William Jolitz.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. 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.
|
|
* 3. Neither the name of the University 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 REGENTS 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 REGENTS 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.
|
|
*
|
|
* @(#)asm.h 5.5 (Berkeley) 5/7/91
|
|
*/
|
|
|
|
#ifndef _SH_ASM_H_
|
|
#define _SH_ASM_H_
|
|
|
|
#ifdef __ELF__
|
|
# define _C_LABEL(x) x
|
|
#else
|
|
#ifdef __STDC__
|
|
# define _C_LABEL(x) _ ## x
|
|
#else
|
|
# define _C_LABEL(x) _/**/x
|
|
#endif
|
|
#endif
|
|
#define _ASM_LABEL(x) x
|
|
|
|
#ifdef __STDC__
|
|
# define __CONCAT(x,y) x ## y
|
|
# define __STRING(x) #x
|
|
#else
|
|
# define __CONCAT(x,y) x/**/y
|
|
# define __STRING(x) "x"
|
|
#endif
|
|
|
|
/* let kernels and others override entrypoint alignment */
|
|
#ifndef _ALIGN_TEXT
|
|
# define _ALIGN_TEXT .align 2
|
|
#endif
|
|
|
|
#ifdef __ELF__
|
|
#define _ENTRY(x) \
|
|
.text ;\
|
|
_ALIGN_TEXT ;\
|
|
.globl x ;\
|
|
.type x,@function ;\
|
|
x:
|
|
#else /* !__ELF__ */
|
|
#define _ENTRY(x) \
|
|
.text ;\
|
|
_ALIGN_TEXT ;\
|
|
.globl x ;\
|
|
x:
|
|
#endif /* !__ELF__ */
|
|
|
|
#ifdef GPROF
|
|
#define _PROF_PROLOGUE \
|
|
mov.l 1f,r1 ; \
|
|
mova 2f,r0 ; \
|
|
jmp @r1 ; \
|
|
nop ; \
|
|
.align 2 ; \
|
|
1: .long __mcount ; \
|
|
2:
|
|
#else /* !GPROF */
|
|
#define _PROF_PROLOGUE
|
|
#endif /* !GPROF */
|
|
|
|
#define ENTRY(y) _ENTRY(_C_LABEL(y)) _PROF_PROLOGUE
|
|
#define NENTRY(y) _ENTRY(_C_LABEL(y))
|
|
#define ASENTRY(y) _ENTRY(_ASM_LABEL(y)) _PROF_PROLOGUE
|
|
|
|
#define SET_ENTRY_SIZE(y) \
|
|
.size _C_LABEL(y), . - _C_LABEL(y)
|
|
|
|
#define SET_ASENTRY_SIZE(y) \
|
|
.size _ASM_LABEL(y), . - _ASM_LABEL(y)
|
|
|
|
#ifdef __ELF__
|
|
#define ALTENTRY(name) \
|
|
.globl _C_LABEL(name) ;\
|
|
.type _C_LABEL(name),@function ;\
|
|
_C_LABEL(name):
|
|
#else
|
|
#define ALTENTRY(name) \
|
|
.globl _C_LABEL(name) ;\
|
|
_C_LABEL(name):
|
|
#endif
|
|
|
|
|
|
/*
|
|
* Hide the gory details of PIC calls vs. normal calls. Use as in the
|
|
* following example:
|
|
*
|
|
* sts.l pr, @-sp
|
|
* PIC_PROLOGUE(.L_got, r0) ! saves old r12 on stack
|
|
* ...
|
|
* mov.l .L_function_1, r0
|
|
* 1: CALL r0 ! each call site needs a label
|
|
* nop
|
|
* ...
|
|
* mov.l .L_function_2, r0
|
|
* 2: CALL r0
|
|
* nop
|
|
* ...
|
|
* PIC_EPILOGUE ! restores r12 from stack
|
|
* lds.l @sp+, pr ! so call in right order
|
|
* rts
|
|
* nop
|
|
*
|
|
* .align 2
|
|
* .L_got:
|
|
* PIC_GOT_DATUM
|
|
* .L_function_1: ! if you call the same function twice
|
|
* CALL_DATUM(function, 1b) ! provide call datum for each call
|
|
* .L_function_2:
|
|
* CALL_DATUM(function, 2b)
|
|
*/
|
|
|
|
#ifdef PIC
|
|
|
|
#define PIC_PLT(x) x@PLT
|
|
#define PIC_GOT(x) x@GOT
|
|
#define PIC_GOTOFF(x) x@GOTOFF
|
|
|
|
#define PIC_PROLOGUE(got) \
|
|
mov.l r12, @-sp; \
|
|
PIC_PROLOGUE_NOSAVE(got)
|
|
|
|
/*
|
|
* Functions that do non local jumps don't need to preserve r12,
|
|
* so we can shave off two instructions to save/restore it.
|
|
*/
|
|
#define PIC_PROLOGUE_NOSAVE(got) \
|
|
mov.l got, r12; \
|
|
mova got, r0; \
|
|
add r0, r12
|
|
|
|
#define PIC_EPILOGUE \
|
|
mov.l @sp+, r12
|
|
|
|
#define PIC_EPILOGUE_SLOT \
|
|
PIC_EPILOGUE
|
|
|
|
#define PIC_GOT_DATUM \
|
|
.long _GLOBAL_OFFSET_TABLE_
|
|
|
|
#define CALL bsrf
|
|
#define JUMP braf
|
|
|
|
#define CALL_DATUM(function, lpcs) \
|
|
.long PIC_PLT(function) - ((lpcs) + 4 - (.))
|
|
|
|
/*
|
|
* This will result in text relocations in the shared library,
|
|
* unless the function is local or has hidden or protected visibility.
|
|
* Does not require PIC prologue.
|
|
*/
|
|
#define CALL_DATUM_LOCAL(function, lpcs) \
|
|
.long function - ((lpcs) + 4)
|
|
|
|
#else /* !PIC */
|
|
|
|
#define PIC_PROLOGUE(label)
|
|
#define PIC_PROLOGUE_NOSAVE(label)
|
|
#define PIC_EPILOGUE
|
|
#define PIC_EPILOGUE_SLOT nop
|
|
#define PIC_GOT_DATUM
|
|
|
|
#define CALL jsr @
|
|
#define JUMP jmp @
|
|
|
|
#define CALL_DATUM(function, lpcs) \
|
|
.long function
|
|
|
|
#define CALL_DATUM_LOCAL(function, lpcs) \
|
|
.long function
|
|
|
|
#endif /* !PIC */
|
|
|
|
|
|
#define ASMSTR .asciz
|
|
|
|
#ifdef __ELF__
|
|
#define WEAK_ALIAS(alias,sym) \
|
|
.weak _C_LABEL(alias); \
|
|
_C_LABEL(alias) = _C_LABEL(sym)
|
|
#endif
|
|
|
|
#define WARN_REFERENCES(_sym,_msg) \
|
|
.section .gnu.warning._sym; .ascii _msg; .previous
|
|
|
|
#endif /* !_SH_ASM_H_ */
|