d7e16e9e83
* sysdeps/unix/i386/sysdep.h (JUMPTARGET): Use ## to avoid space before @PLT. * sysdeps/mach/i386/sysdep.h (JUMPTARGET): New macro. * sysdeps/i386/bsd-_setjmp.S: Use JUMPTARGET macro in jmp insn. * sysdeps/i386/bsd-setjmp.S: Likewise.
63 lines
1.9 KiB
C
63 lines
1.9 KiB
C
/* Copyright (C) 1991, 1992, 1993, 1994, 1995 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 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; see the file COPYING.LIB. If
|
|
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
|
|
Cambridge, MA 02139, USA. */
|
|
|
|
#define MOVE(x,y) movl x , y
|
|
|
|
#define LOSE asm volatile ("hlt")
|
|
|
|
#define SNARF_ARGS(entry_sp, argc, argv, envp) \
|
|
do \
|
|
{ \
|
|
register char **p; \
|
|
argc = (int) *entry_sp; \
|
|
argv = (char **) (entry_sp + 1); \
|
|
p = argv; \
|
|
while (*p++ != NULL) \
|
|
; \
|
|
if (p >= (char **) argv[0]) \
|
|
--p; \
|
|
envp = p; \
|
|
} while (0)
|
|
|
|
#define CALL_WITH_SP(fn, info, sp) \
|
|
do { \
|
|
void **ptr = (void **) sp; \
|
|
*--(__typeof (info) *) ptr = info; \
|
|
ptr[-1] = ptr; \
|
|
--ptr; \
|
|
asm volatile ("movl %0, %%esp; call %1" : : \
|
|
"g" (ptr), "m" (*(long int *) (fn)) : "%esp"); \
|
|
} while (0)
|
|
|
|
#define RETURN_TO(sp, pc, retval) \
|
|
asm volatile ("movl %0, %%esp; jmp %*%1 # %2" \
|
|
: : "g" (sp), "r" (pc), "a" (retval))
|
|
|
|
|
|
#define STACK_GROWTH_DOWN
|
|
|
|
|
|
#ifdef PIC
|
|
#define JUMPTARGET(name) name##@PLT
|
|
#else
|
|
#define JUMPTARGET(name) name
|
|
#endif
|
|
|
|
|
|
#include_next <sysdep.h>
|