sysdep.h

/* Copyright 2001 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Alexandre Oliva <aoliva@redhat.com>.
   Based on ../i386/sysdep.h.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public License as
   published by the Free Software Foundation; either version 2 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
   Library General Public License for more details.

   You should have received a copy of the GNU Library 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.  */

#ifdef HAVE_ELF
/* 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;

/* In ELF C symbols are asm symbols.  */
#undef	NO_UNDERSCORES
#define NO_UNDERSCORES
#else
#define ASM_TYPE_DIRECTIVE(name,type)	/* Nothing is specified.  */
#define ASM_SIZE_DIRECTIVE(name)	/* Nothing is specified.  */
#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)			      \
  C_LABEL(name)								      \
  CALL_MCOUNT

#undef	END
#define END(name)							      \
  ASM_SIZE_DIRECTIVE(name)						      \

/* If compiled for profiling, call `mcount' at the start of each function.  */
#ifdef	PROF
/* The mcount code relies on a normal frame pointer being on the stack
   to locate our caller, so push one just for its benefit.  */
#define CALL_MCOUNT \
  movm [a3],(sp); mov sp,a3; add -12,sp; \
  call JUMPTARGET(mcount),[],0; add 12,sp; movm (sp),[a3];
#else
#define CALL_MCOUNT		/* Do nothing.  */
#endif

#ifdef	NO_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

#undef JUMPTARGET
#ifdef PIC
#define JUMPTARGET(name)	name##@PLT
#else
#define JUMPTARGET(name)	name
#endif

/* Local label name for asm code. */
#ifndef L
#define L(name)		name
#endif

#endif	/* __ASSEMBLER__ */