1 /* Copyright (C) 1999 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
19 #include <sys/syscall.h>
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 .global __default_sa_restorer
26 .type __default_sa_restorer,%function
28 __default_sa_restorer:
32 #ifdef __NR_rt_sigreturn
34 .global __default_rt_sa_restorer
35 .type __default_rt_sa_restorer,%function
37 __default_rt_sa_restorer:
38 DO_CALL (rt_sigreturn)