1 /* Install given context.
2 Copyright (C) 2005-2015 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
21 #include "ucontext_i.h"
23 /* int __setcontext (const ucontext_t *uc); */
31 /* sigprocmask (SIG_SETMASK, &uc->uc_sigmask, NULL). */
36 mov #+SYS_ify(sigprocmask), r3
41 not r1, r1 // r1=0 means r0 = -1 to -4095
42 tst r1, r1 // i.e. error in linux
43 bf .Lsetcontext_restore
59 /* Skip GBR which is used for thread pointer. */
78 cfi_adjust_cfa_offset(4)
79 cfi_rel_offset (r1, 0)
81 cfi_adjust_cfa_offset(4)
82 cfi_rel_offset (r2, 0)
93 cfi_adjust_cfa_offset(-4)
97 PSEUDO_END(__setcontext)
99 weak_alias (__setcontext, setcontext)