2003-02-05 09:54:24 +00:00
|
|
|
/* Clean up stack frames unwound by longjmp. Linux/s390 version.
|
2015-01-02 16:28:19 +00:00
|
|
|
Copyright (C) 2003-2015 Free Software Foundation, Inc.
|
2003-02-05 09:54:24 +00:00
|
|
|
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
|
2003-07-31 19:26:38 +00:00
|
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
2003-02-05 09:54:24 +00:00
|
|
|
Lesser General Public License for more details.
|
|
|
|
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
2012-02-09 23:18:22 +00:00
|
|
|
License along with the GNU C Library; if not, see
|
|
|
|
<http://www.gnu.org/licenses/>. */
|
2003-02-05 09:54:24 +00:00
|
|
|
|
|
|
|
#include <setjmp.h>
|
|
|
|
#include <stddef.h>
|
Use __libc_ptf_call in _longjmp_unwind
Use __libc_ptf_call in _longjmp_unwind to avoid duplicated logic. On
x86-64, I got
jmp-unwind.os:
_longjmp_unwind:
movl __libc_pthread_functions_init(%rip), %eax
testl %eax, %eax
jne .L4
rep ret
.L4:
movq 304+__libc_pthread_functions(%rip), %rax
movq %rsp, %rsi
ror $2*8+1, %rax
xor %fs:48, %rax
jmp *%rax
jmp-unwind.o:
_longjmp_unwind:
movl $__pthread_cleanup_upto, %eax
testq %rax, %rax
je .L1
movq %rsp, %rsi
jmp __pthread_cleanup_upto
.L1:
rep ret
* sysdeps/nptl/jmp-unwind.c: Include <libc-lock.h> instead of
<nptl/pthreadP.h>.
(_longjmp_unwind): Use __libc_ptf_call.
* sysdeps/unix/sysv/linux/s390/jmp-unwind.c: Likewise.
2015-09-18 19:22:36 +00:00
|
|
|
#include <libc-lock.h>
|
2003-02-05 09:54:24 +00:00
|
|
|
|
2003-07-31 19:26:38 +00:00
|
|
|
extern void __pthread_cleanup_upto (__jmp_buf env, char *targetframe);
|
2003-02-05 09:54:24 +00:00
|
|
|
#pragma weak __pthread_cleanup_upto
|
|
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
_longjmp_unwind (jmp_buf env, int val)
|
|
|
|
{
|
2012-12-08 07:33:24 +00:00
|
|
|
char local_var;
|
2007-01-17 08:37:26 +00:00
|
|
|
|
Use __libc_ptf_call in _longjmp_unwind
Use __libc_ptf_call in _longjmp_unwind to avoid duplicated logic. On
x86-64, I got
jmp-unwind.os:
_longjmp_unwind:
movl __libc_pthread_functions_init(%rip), %eax
testl %eax, %eax
jne .L4
rep ret
.L4:
movq 304+__libc_pthread_functions(%rip), %rax
movq %rsp, %rsi
ror $2*8+1, %rax
xor %fs:48, %rax
jmp *%rax
jmp-unwind.o:
_longjmp_unwind:
movl $__pthread_cleanup_upto, %eax
testq %rax, %rax
je .L1
movq %rsp, %rsi
jmp __pthread_cleanup_upto
.L1:
rep ret
* sysdeps/nptl/jmp-unwind.c: Include <libc-lock.h> instead of
<nptl/pthreadP.h>.
(_longjmp_unwind): Use __libc_ptf_call.
* sysdeps/unix/sysv/linux/s390/jmp-unwind.c: Likewise.
2015-09-18 19:22:36 +00:00
|
|
|
__libc_ptf_call (__pthread_cleanup_upto, (env->__jmpbuf, &local_var), 0);
|
2003-02-05 09:54:24 +00:00
|
|
|
}
|