Copyright (C) 1991, 92, 93, 95, 96, 98 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_next <sysdep.h>
#ifdef __ASSEMBLER__
#ifdef HAVE_ELF
#define ALIGNARG(log2) 1<<log2
#define ASM_TYPE_DIRECTIVE(name,typearg) .type name,typearg;
#define ASM_SIZE_DIRECTIVE(name) .size name,.-name;
#else
#define ALIGNARG(log2) log2
#define ASM_TYPE_DIRECTIVE(name,type)
#define ASM_SIZE_DIRECTIVE(name)
#endif
There is currently a bug in gdb which prevents us from specifying
incomplete stabs information. Fake some entries here which specify
the current source file. */
#define ENTRY(name) \
STABS_CURRENT_FILE1("") \
STABS_CURRENT_FILE(name) \
ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(name); \
ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),@function) \
.align ALIGNARG(4); \
STABS_FUN(name) \
C_LABEL(name) \
CALL_MCOUNT
#undef END
#define END(name) \
ASM_SIZE_DIRECTIVE(name) \
STABS_FUN_END(name)
#define STABS_CURRENT_FILE(name) \
STABS_CURRENT_FILE1 (#name)
#define STABS_CURRENT_FILE1(name) \
1: .stabs name,100,0,0,1b;
the same way gcc does it. */
#define STABS_FUN(name) STABS_FUN2(name, name##:F(0,1))
#define STABS_FUN2(name, namestr) \
.stabs "int:t(0,1)=r(0,1);-2147483648;2147483647;",128,0,0,0; \
.stabs #namestr,36,0,0,name;
#define STABS_FUN_END(name) \
1: .stabs "",36,0,0,1b-name;
#ifdef PROF
to locate our caller, so push one just for its benefit. */
#define CALL_MCOUNT \
pushl %ebp; movl %esp, %ebp; call JUMPTARGET(mcount); popl %ebp;
#else
#define CALL_MCOUNT
#endif
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
#define PSEUDO(name, syscall_name, args) \
lose: SYSCALL_PIC_SETUP \
jmp JUMPTARGET(syscall_error) \
.globl syscall_error; \
ENTRY (name) \
DO_CALL (syscall_name, args); \
jb lose
#undef PSEUDO_END
#define PSEUDO_END(name) \
END (name)
#ifdef PIC
#define JUMPTARGET(name) name##@PLT
#define SYSCALL_PIC_SETUP \
pushl %ebx; \
call 0f; \
0: popl %ebx; \
addl $_GLOBAL_OFFSET_TABLE+[.-0b], %ebx;
#else
#define JUMPTARGET(name) name
#define SYSCALL_PIC_SETUP
#endif
#ifndef L
#define L(name) name
#endif
#endif
