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566e10aa72
The upper bits of the sigset_t s not fully initialized in the signal mask calls that return information from kernel (sigprocmask, sigpending, and pthread_sigmask), since the exported sigset_t size (1024 bits) is larger than Linux support one (64 or 128 bits). It might make sigisemptyset/sigorset/sigandset fail if the mask is filled prior the call. This patch changes the internal signal function to handle up to supported Linux signal number (_NSIG), the remaining bits are untouched. Checked on x86_64-linux-gnu and i686-linux-gnu.
54 lines
1.6 KiB
C
54 lines
1.6 KiB
C
/* Compatibility symbols for old versions of signal.h.
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Copyright (C) 2017-2020 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <signal.h>
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#include <sigsetops.h>
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#include <shlib-compat.h>
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/* These were formerly defined by <signal.h> as inline functions,
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so they require out-of-line compatibility definitions. */
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#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_26)
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int
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attribute_compat_text_section
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__sigismember_compat (const __sigset_t *set, int sig)
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{
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return __sigismember (set, sig);
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}
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compat_symbol (libc, __sigismember_compat, __sigismember, GLIBC_2_0);
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int
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attribute_compat_text_section
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__sigaddset_compat (__sigset_t *set, int sig)
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{
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__sigaddset (set, sig);
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return 0;
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}
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compat_symbol (libc, __sigaddset_compat, __sigaddset, GLIBC_2_0);
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int
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attribute_compat_text_section
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__sigdelset_compat (__sigset_t *set, int sig)
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{
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__sigdelset (set, sig);
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return 0;
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}
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compat_symbol (libc, __sigdelset_compat, __sigdelset, GLIBC_2_0);
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#endif
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