mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-02 09:40:13 +00:00
5bccf60972
* sysdeps/unix/sysv/linux/hppa/ucontext_i.sym: New file. * sysdeps/unix/sysv/linux/hppa/Makefile: New file. * sysdeps/unix/sysv/linux/hppa/getcontext.S: New file. * sysdeps/unix/sysv/linux/hppa/makecontext.c: New file. * sysdeps/unix/sysv/linux/hppa/setcontext.S: New file. * sysdeps/unix/sysv/linux/hppa/swapcontext.c: New file.
44 lines
1.4 KiB
C
44 lines
1.4 KiB
C
/* Swap to new context.
|
|
Copyright (C) 2008 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Helge Deller <deller@gmx.de>, 2008.
|
|
|
|
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, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include <ucontext.h>
|
|
|
|
extern int __getcontext (ucontext_t *ucp);
|
|
extern int __setcontext (const ucontext_t *ucp);
|
|
|
|
int
|
|
__swapcontext (ucontext_t *oucp, const ucontext_t *ucp)
|
|
{
|
|
/* Save the current machine context to oucp. */
|
|
__getcontext (oucp);
|
|
|
|
/* mark sc_sar flag to skip the setcontext call on reactivation. */
|
|
if (oucp->uc_mcontext.sc_sar == 0) {
|
|
oucp->uc_mcontext.sc_sar++;
|
|
|
|
/* Restore the machine context in ucp. */
|
|
__setcontext (ucp);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
weak_alias (__swapcontext, swapcontext)
|