diff options
author | Joseph Myers <joseph@codesourcery.com> | 2012-07-01 13:08:59 +0000 |
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committer | Joseph Myers <joseph@codesourcery.com> | 2012-07-01 13:08:59 +0000 |
commit | e84eabb3871c9b39e59323bf3f6b98c2ca9d1cd0 (patch) | |
tree | dff3f1b79454b518d15a7b9bbedeb57ff156bbe8 /ports/sysdeps/unix/sysv/linux/ia64/swapcontext.c | |
parent | 75f0d3040a2c2de8842bfa7a09e11da1a73e17d0 (diff) | |
parent | e64ac02c24b43659048622714afdc92fedf561fa (diff) |
Merge glibc-ports into ports/ directory.glibc-2.16-ports-merge
Diffstat (limited to 'ports/sysdeps/unix/sysv/linux/ia64/swapcontext.c')
-rw-r--r-- | ports/sysdeps/unix/sysv/linux/ia64/swapcontext.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/ports/sysdeps/unix/sysv/linux/ia64/swapcontext.c b/ports/sysdeps/unix/sysv/linux/ia64/swapcontext.c new file mode 100644 index 0000000000..20a20ac2ba --- /dev/null +++ b/ports/sysdeps/unix/sysv/linux/ia64/swapcontext.c @@ -0,0 +1,39 @@ +/* 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) |