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cd65836b5f
For XPG4.2, sa_sigaction, SA_ONSTACK, SA_RESETHAND, SA_RESTART and SA_NODEFER should be defined in signal.h, but they are only defined for other standards at present. This patch fixes the various bits/sigaction.h headers accordingly. All the fixes are essentially the same, except those for SPARC and Tile. For SPARC, the header (a) spuriously defined various nonstandard macros for __USE_UNIX98 || defined __USE_XOPEN2K8 and (b) defined some standard macros as aliases of nonstandard ones instead of the other way round. This patch fixes the SPARC header to handle these macros the same way and with the same conditions as those for other architectures, so the standard macros are the primary ones and the other ones are defined only for __USE_MISC and are aliases of the standard ones where applicable. For Tile, the header spuriously defined the nonstandard macro SA_NOPTRACE for __USE_UNIX98 || defined __USE_XOPEN2K8; this is moved to __USE_MISC. (Those nonstandard macros are in a reserved namespace, but it seems desirable to be consistent between architectures as far as possible, and so not define them in standard modes anywhere.) Tested for x86_64, and with build-many-glibcs.py. [BZ #21899] * bits/sigaction.h (struct sigaction): Define sa_handler and sa_sigaction using union also for [__USE_XOPEN_EXTENDED]. (SA_ONSTACK): Change [__USE_UNIX98] condition to [__USE_XOPEN_EXTENDED]. (SA_RESTART): Likewise. (SA_NODEFER): Likewise. (SA_RESETHAND): Likewise. * sysdeps/unix/sysv/linux/alpha/bits/sigaction.h (struct sigaction): Define sa_handler and sa_sigaction using union also for [__USE_XOPEN_EXTENDED]. (SA_ONSTACK): Change [__USE_UNIX98] condition to [__USE_XOPEN_EXTENDED]. (SA_RESTART): Likewise. (SA_NODEFER): Likewise. (SA_RESETHAND): Likewise. * sysdeps/unix/sysv/linux/bits/sigaction.h (struct sigaction): Define sa_handler and sa_sigaction using union also for [__USE_XOPEN_EXTENDED]. (SA_ONSTACK): Change [__USE_UNIX98] condition to [__USE_XOPEN_EXTENDED]. (SA_RESTART): Likewise. (SA_NODEFER): Likewise. (SA_RESETHAND): Likewise. * sysdeps/unix/sysv/linux/hppa/bits/sigaction.h (struct sigaction): Define sa_handler and sa_sigaction using union also for [__USE_XOPEN_EXTENDED]. (SA_ONSTACK): Change [__USE_UNIX98] condition to [__USE_XOPEN_EXTENDED]. (SA_RESTART): Likewise. (SA_NODEFER): Likewise. (SA_RESETHAND): Likewise. * sysdeps/unix/sysv/linux/ia64/bits/sigaction.h (struct sigaction): Define sa_handler and sa_sigaction using union also for [__USE_XOPEN_EXTENDED]. (SA_ONSTACK): Change [__USE_UNIX98] condition to [__USE_XOPEN_EXTENDED]. (SA_RESTART): Likewise. (SA_NODEFER): Likewise. (SA_RESETHAND): Likewise. * sysdeps/unix/sysv/linux/mips/bits/sigaction.h (struct sigaction): Define sa_handler and sa_sigaction using union also for [__USE_XOPEN_EXTENDED]. (SA_ONSTACK): Change [__USE_UNIX98] condition to [__USE_XOPEN_EXTENDED]. (SA_RESTART): Likewise. (SA_NODEFER): Likewise. (SA_RESETHAND): Likewise. * sysdeps/unix/sysv/linux/s390/bits/sigaction.h (struct sigaction): Define sa_handler and sa_sigaction using union also for [__USE_XOPEN_EXTENDED]. (SA_ONSTACK): Change [__USE_UNIX98] condition to [__USE_XOPEN_EXTENDED]. (SA_RESTART): Likewise. (SA_NODEFER): Likewise. (SA_RESETHAND): Likewise. * sysdeps/unix/sysv/linux/sparc/bits/sigaction.h (struct sigaction): Define sa_handler and sa_sigaction using union also for [__USE_XOPEN_EXTENDED]. (SA_ONSTACK): Change [__USE_UNIX98] condition to [__USE_XOPEN_EXTENDED]. (SA_RESTART): Likewise. (SA_NODEFER): Likewise. Define directly rather than as alias. (SA_RESETHAND): Likewise. (SA_INTERRUPT): Define only for [__USE_MISC]. (SA_NOMASK): Define as alias of SA_NODEFER, only for [__USE_MISC]. (SA_ONESHOT): Define as alias of SA_RESETHAND, only for [__USE_MISC]. (SA_STACK): Define only for [__USE_MISC]. * sysdeps/unix/sysv/linux/tile/bits/sigaction.h (struct sigaction): Define sa_handler and sa_sigaction using union also for [__USE_XOPEN_EXTENDED]. (SA_ONSTACK): Change [__USE_UNIX98] condition to [__USE_XOPEN_EXTENDED]. (SA_RESTART): Likewise. (SA_NODEFER): Likewise. (SA_RESETHAND): Likewise. (SA_NOPTRACE): Define only for [__USE_MISC].
82 lines
2.9 KiB
C
82 lines
2.9 KiB
C
/* Definitions for Linux/HPPA sigaction.
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Copyright (C) 1996-2017 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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<http://www.gnu.org/licenses/>. */
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#ifndef _SIGNAL_H
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# error "Never include <bits/sigaction.h> directly; use <signal.h> instead."
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#endif
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#include <bits/wordsize.h>
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/* Structure describing the action to be taken when a signal arrives. */
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struct sigaction
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{
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/* Signal handler. */
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#if defined __USE_POSIX199309 || defined __USE_XOPEN_EXTENDED
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union
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{
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/* Used if SA_SIGINFO is not set. */
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__sighandler_t sa_handler;
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/* Used if SA_SIGINFO is set. */
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void (*sa_sigaction) (int, siginfo_t *, void *);
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}
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__sigaction_handler;
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# define sa_handler __sigaction_handler.sa_handler
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# define sa_sigaction __sigaction_handler.sa_sigaction
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#else
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__sighandler_t sa_handler;
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#endif
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/* Special flags. */
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#if __WORDSIZE == 64
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int __glibc_reserved0;
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#endif
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int sa_flags;
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/* Additional set of signals to be blocked. */
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__sigset_t sa_mask;
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};
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/* Bits in `sa_flags'. */
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#define SA_NOCLDSTOP 0x00000008 /* Don't send SIGCHLD when children stop. */
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#define SA_NOCLDWAIT 0x00000080 /* Don't create zombie on child death. */
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#define SA_SIGINFO 0x00000010 /* Invoke signal-catching function with
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three arguments instead of one. */
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#if defined __USE_XOPEN_EXTENDED || defined __USE_MISC
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# define SA_ONSTACK 0x00000001 /* Use signal stack by using `sa_restorer'. */
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#endif
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#if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K8
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# define SA_RESETHAND 0x00000004 /* Reset to SIG_DFL on entry to handler. */
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# define SA_NODEFER 0x00000020 /* Don't automatically block the signal
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when its handler is being executed. */
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# define SA_RESTART 0x00000040 /* Restart syscall on signal return. */
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#endif
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#ifdef __USE_MISC
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# define SA_INTERRUPT 0x20000000 /* Historic no-op. */
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/* Some aliases for the SA_ constants. */
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# define SA_NOMASK SA_NODEFER
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# define SA_ONESHOT SA_RESETHAND
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# define SA_STACK SA_ONSTACK
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#endif
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/* Values for the HOW argument to `sigprocmask'. */
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#define SIG_BLOCK 0 /* for blocking signals */
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#define SIG_UNBLOCK 1 /* for unblocking signals */
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#define SIG_SETMASK 2 /* for setting the signal mask */
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