1 /* Copyright (C) 1992-2022 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
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.
8
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.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18 /* Copy of sysdeps/generic/sigjmp.c modified for backward compatibility
19 with old non AltiVec/VMX setjmp. */
20
21 #include <bits/wordsize.h>
22 #include <shlib-compat.h>
23 #if IS_IN (libc) && defined SHARED
24 # if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3_4)
25 # include <stddef.h>
26 # include <novmxsetjmp.h>
27 # include <signal.h>
28
29 /* This function is called by the `sigsetjmp' macro
30 before doing a `__setjmp' on ENV[0].__jmpbuf.
31 Always return zero. */
32
33 int
__novmx__sigjmp_save(__novmx__sigjmp_buf env,int savemask)34 __novmx__sigjmp_save (__novmx__sigjmp_buf env, int savemask)
35 {
36 env[0].__mask_was_saved = (savemask
37 && __sigprocmask (SIG_BLOCK, (sigset_t *) NULL,
38 &env[0].__saved_mask) == 0);
39
40 return 0;
41 }
42
43 # endif /* SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3_4) */
44 #endif /* IS_IN (libc) && SHARED */
45