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2002-01-07 Roland McGrath <roland@frob.com>

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* sysdeps/mach/hurd/i386/init-first.c (_hurd_stack_setup): Use
	volatile on type of ARGC so the compiler doesn't get clever.
This commit is contained in:
Roland McGrath 2002-01-08 19:54:56 +00:00
parent 2583fed138
commit ce12c9ffa2
1 changed files with 10 additions and 14 deletions
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24
sysdeps/mach/hurd/i386/init-first.c
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@ -1,5 +1,5 @@
/* Initialization code run first thing by the ELF startup code. For i386/Hurd.
Copyright (C) 1995,96,97,98,99,2000,2001 Free Software Foundation, Inc.
Copyright (C) 1995,96,97,98,99,2000,2001,02 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
@ -247,22 +247,18 @@ init (int *data)
we will run on, and jmp to the run-time address of `init1'; when it
returns, it will run the user code with the argument data at the
top of the stack. */
asm ("
switch_stacks:
movl %eax, %esp
jmp *%ecx
");
asm ("switch_stacks:\n"
" movl %eax, %esp\n"
" jmp *%ecx");
/* As in the stack-switching case, at this point our stack is unwound
and callers' registers restored, and only %ecx and %eax communicate
values from the lines above. In this case we have stashed in %eax
the user code return address. Push it on the top of the stack so
it acts as init1's return address, and then jump there. */
asm ("
call_init1:
push %eax
jmp *%ecx
");
asm ("call_init1:\n"
" push %eax\n"
" jmp *%ecx\n");
/* Do the first essential initializations that must precede all else. */
@ -313,14 +309,14 @@ strong_alias (posixland_init, __libc_init_first);
This poorly-named function is called by static-start.S,
which should not exist at all. */
void
_hurd_stack_setup (int argc __attribute__ ((unused)), ...)
_hurd_stack_setup (volatile int argc, ...)
{
void doinit (int *data)
{
/* This function gets called with the argument data at TOS. */
void doinit1 (int argc, ...)
void doinit1 (volatile int argc, ...)
{
init (&argc);
init ((int *) &argc);
}
/* Push the user return address after the argument data, and then