mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-28 21:41:08 +00:00
78 lines
2.3 KiB
C
78 lines
2.3 KiB
C
/* Assembler macros for SH.
|
|
Copyright (C) 1999, 2000, 2005, 2012 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <sysdeps/generic/sysdep.h>
|
|
|
|
#ifdef __ASSEMBLER__
|
|
|
|
/* Syntactic details of assembler. */
|
|
|
|
#define ALIGNARG(log2) log2
|
|
/* For ELF we need the `.type' directive to make shared libs work right. */
|
|
#define ASM_TYPE_DIRECTIVE(name,typearg) .type name,@##typearg;
|
|
#define ASM_SIZE_DIRECTIVE(name) .size name,.-name
|
|
|
|
#ifdef SHARED
|
|
#define PLTJMP(_x) _x##@PLT
|
|
#else
|
|
#define PLTJMP(_x) _x
|
|
#endif
|
|
|
|
|
|
/* Define an entry point visible from C. */
|
|
#define ENTRY(name) \
|
|
ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(name); \
|
|
ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),function) \
|
|
.align ALIGNARG(5); \
|
|
C_LABEL(name) \
|
|
cfi_startproc; \
|
|
CALL_MCOUNT
|
|
|
|
#undef END
|
|
#define END(name) \
|
|
cfi_endproc; \
|
|
ASM_SIZE_DIRECTIVE(C_SYMBOL_NAME(name))
|
|
|
|
/* If compiled for profiling, call `mcount' at the start of each function. */
|
|
#ifdef PROF
|
|
#define CALL_MCOUNT \
|
|
mov.l 1f,r1; \
|
|
sts.l pr,@-r15; \
|
|
cfi_adjust_cfa_offset (4); \
|
|
cfi_rel_offset (pr, 0); \
|
|
mova 2f,r0; \
|
|
jmp @r1; \
|
|
lds r0,pr; \
|
|
.align 2; \
|
|
1: .long mcount; \
|
|
2: lds.l @r15+,pr; \
|
|
cfi_adjust_cfa_offset (-4); \
|
|
cfi_restore (pr)
|
|
|
|
#else
|
|
#define CALL_MCOUNT /* Do nothing. */
|
|
#endif
|
|
|
|
/* Since C identifiers are not normally prefixed with an underscore
|
|
on this system, the asm identifier `syscall_error' intrudes on the
|
|
C name space. Make sure we use an innocuous name. */
|
|
#define syscall_error __syscall_error
|
|
#define mcount _mcount
|
|
|
|
#endif /* __ASSEMBLER__ */
|