From 5abebba403181de898bbea4ee1bcce5f088c663b Mon Sep 17 00:00:00 2001 From: Carlos O'Donell Date: Tue, 29 Apr 2014 03:08:48 -0400 Subject: Relocate hppa from ports to libc. --- sysdeps/unix/sysv/linux/hppa/swapcontext.c | 42 ++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 sysdeps/unix/sysv/linux/hppa/swapcontext.c (limited to 'sysdeps/unix/sysv/linux/hppa/swapcontext.c') diff --git a/sysdeps/unix/sysv/linux/hppa/swapcontext.c b/sysdeps/unix/sysv/linux/hppa/swapcontext.c new file mode 100644 index 0000000000..ec811868ec --- /dev/null +++ b/sysdeps/unix/sysv/linux/hppa/swapcontext.c @@ -0,0 +1,42 @@ +/* Swap to new context. + Copyright (C) 2008-2014 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Helge Deller , 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, see + . */ + +#include + +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) -- cgit 1.4.1