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2.5-18.1

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This commit is contained in:
Jakub Jelinek
2007-07-12 18:26:36 +00:00
parent 7d58530341
commit 0ecb606cb6
6215 changed files with 494638 additions and 305010 deletions
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22
sysdeps/unix/sysv/linux/x86_64/makecontext.c
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@ -1,5 +1,5 @@
/* Create new context.
Copyright (C) 2002, 2004 Free Software Foundation, Inc.
Copyright (C) 2002, 2004, 2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Andreas Jaeger <aj@suse.de>, 2002.
@ -20,6 +20,7 @@
#include <sysdep.h>
#include <stdarg.h>
#include <stdint.h>
#include <ucontext.h>
#include "ucontext_i.h"
@ -52,28 +53,29 @@ void
__makecontext (ucontext_t *ucp, void (*func) (void), int argc, ...)
{
extern void __start_context (void);
unsigned long *sp, idx_uc_link;
unsigned long int *sp, idx_uc_link;
va_list ap;
int i;
/* Generate room on stack for parameter if needed and uc_link. */
sp = (long *) ((long) ucp->uc_stack.ss_sp + ucp->uc_stack.ss_size);
sp = (unsigned long int *) ((uintptr_t) ucp->uc_stack.ss_sp
+ ucp->uc_stack.ss_size);
sp -= (argc > 6 ? argc - 6 : 0) + 1;
/* Align stack and make space for trampoline address. */
sp = (long *) ((((long) sp) & -16L) - 8);
sp = (unsigned long int *) ((((uintptr_t) sp) & -16L) - 8);
idx_uc_link = (argc > 6 ? argc - 6 : 0) + 1;
/* Setup context ucp. */
/* Address to jump to. */
ucp->uc_mcontext.gregs[REG_RIP] = (long) func;
ucp->uc_mcontext.gregs[REG_RIP] = (long int) func;
/* Setup rbx.*/
ucp->uc_mcontext.gregs[REG_RBX] = (long) &sp[idx_uc_link];
ucp->uc_mcontext.gregs[REG_RSP] = (long) sp;
ucp->uc_mcontext.gregs[REG_RBX] = (long int) &sp[idx_uc_link];
ucp->uc_mcontext.gregs[REG_RSP] = (long int) sp;
/* Setup stack. */
sp[0] = (long) &__start_context;
sp[idx_uc_link] = (long) ucp->uc_link;
sp[0] = (unsigned long int) &__start_context;
sp[idx_uc_link] = (unsigned long int) ucp->uc_link;
va_start (ap, argc);
/* Handle arguments. */
@ -108,4 +110,4 @@ __makecontext (ucontext_t *ucp, void (*func) (void), int argc, ...)
}
weak_alias(__makecontext, makecontext)
weak_alias (__makecontext, makecontext)