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* sysdeps/mach/hurd/i386/init-first.c (_hurd_stack_setup): Let gcc

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clobber the `ebp' register.
	* sysdeps/mach/hurd/i386/Makefile (CFLAGS-init-first.c): Removed.
	Reverts change from 2004-05-07 by Jeroen Dekkers.

	* sysdeps/mach/hurd/i386/init-first.c (init): Changed the type of
	NEWSP from `void *' to `int *'.  Changed all casts accordingly.
This commit is contained in:
Roland McGrath 2004-09-01 02:00:03 +00:00
parent c4bb5cd804
commit 66cc59de5b
3 changed files with 16 additions and 10 deletions
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10
ChangeLog
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@ -1,3 +1,13 @@
2004-08-14 Alfred M. Szmidt <ams@kemisten.nu>
* sysdeps/mach/hurd/i386/init-first.c (_hurd_stack_setup): Let gcc
clobber the `ebp' register.
* sysdeps/mach/hurd/i386/Makefile (CFLAGS-init-first.c): Removed.
Reverts change from 2004-05-07 by Jeroen Dekkers.
* sysdeps/mach/hurd/i386/init-first.c (init): Changed the type of
NEWSP from `void *' to `int *'. Changed all casts accordingly.
2004-08-31 Jakub Jelinek <jakub@redhat.com>
* wcsmbs/wcsmbsload.c (__wcsmbs_getfct): Move attribute_hidden

4
sysdeps/mach/hurd/i386/Makefile
View File

@ -2,7 +2,3 @@ ifeq ($(subdir),misc)
sysdep_routines += ioperm
sysdep_headers += sys/io.h
endif
ifeq ($(subdir),csu)
CFLAGS-init-first.c += -momit-leaf-frame-pointer
endif

12
sysdeps/mach/hurd/i386/init-first.c
View File

@ -1,5 +1,5 @@
/* Initialization code run first thing by the ELF startup code. For i386/Hurd.
Copyright (C) 1995,96,97,98,99,2000,01,02,03 Free Software Foundation, Inc.
Copyright (C) 1995,96,97,98,99,2000,01,02,03,04 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
@ -186,7 +186,7 @@ init (int *data)
if (_cthread_init_routine)
{
/* Initialize cthreads, which will allocate us a new stack to run on. */
void *newsp = (*_cthread_init_routine) ();
int *newsp = (*_cthread_init_routine) ();
struct hurd_startup_data *od;
void switch_stacks (void);
@ -204,12 +204,12 @@ init (int *data)
/* And readjust the dynamic linker's idea of where the argument
vector lives. */
assert (_dl_argv == argv);
_dl_argv = (void *) ((int *) newsp + 1);
_dl_argv = (void *) (newsp + 1);
#endif
/* Set up the Hurd startup data block immediately following
the argument and environment pointers on the new stack. */
od = (newsp + ((char *) d - (char *) data));
od = ((void *) newsp + ((char *) d - (char *) data));
if ((void *) argv[0] == d)
/* We were started up by the kernel with arguments on the stack.
There is no Hurd startup data, so zero the block. */
@ -221,7 +221,7 @@ init (int *data)
/* Push the user code address on the top of the new stack. It will
be the return address for `init1'; we will jump there with NEWSP
as the stack pointer. */
*--(int *) newsp = data[-1];
*--newsp = data[-1];
((void **) data)[-1] = switch_stacks;
/* Force NEWSP into %ecx and &init1 into %eax, which are not restored
by function return. */
@ -347,7 +347,7 @@ _hurd_stack_setup (volatile int argc, ...)
*--data = (&argc)[-1];
asm volatile ("movl %0, %%esp\n" /* Switch to new outermost stack. */
"movl $0, %%ebp\n" /* Clear outermost frame pointer. */
"jmp *%1" : : "r" (data), "r" (&doinit1) : "sp", "bp");
"jmp *%1" : : "r" (data), "r" (&doinit1) : "sp");
/* NOTREACHED */
}