1 /* Copyright (C) 1999, 2012 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, write to the Free
16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
21 /* If no SA_RESTORER function was specified by the application we use
22 one of these. This avoids the need for the kernel to synthesise a return
23 instruction on the stack, which would involve expensive cache flushes. */
25 ENTRY(__default_sa_restorer)
26 swi SYS_ify(sigreturn)
27 END(__default_sa_restorer)
29 #ifdef __NR_rt_sigreturn
31 ENTRY(__default_rt_sa_restorer)
32 swi SYS_ify(rt_sigreturn)
33 END(__default_rt_sa_restorer)