diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/ia64/swapcontext.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/ia64/swapcontext.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/ia64/swapcontext.c b/sysdeps/unix/sysv/linux/ia64/swapcontext.c new file mode 100644 index 0000000000..0227e6cd52 --- /dev/null +++ b/sysdeps/unix/sysv/linux/ia64/swapcontext.c @@ -0,0 +1,39 @@ +/* Copyright (C) 2001-2014 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) |