mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-11 22:00:08 +00:00
40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
/* Copyright (C) 2001-2012 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>.
|
|
|
|
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
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <ucontext.h>
|
|
|
|
struct rv
|
|
{
|
|
long retval;
|
|
long first_return;
|
|
};
|
|
|
|
extern struct rv __getcontext (ucontext_t *__ucp) __THROW;
|
|
extern int __setcontext (const ucontext_t *__ucp) __THROW;
|
|
|
|
int
|
|
__swapcontext (ucontext_t *oucp, const ucontext_t *ucp)
|
|
{
|
|
struct rv rv = __getcontext (oucp);
|
|
if (rv.first_return)
|
|
__setcontext (ucp);
|
|
return 0;
|
|
}
|
|
|
|
weak_alias (__swapcontext, swapcontext)
|