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/* Assembler macros for SH.
Copyright (C) 1999, 2000, 2005 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <sysdeps/generic/sysdep.h>
#include <features.h>
#include <libc-internal.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
#ifdef __UCLIBC_UNDERSCORES__
/* 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
#endif /* __ASSEMBLER__ */
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