diff options
Diffstat (limited to 'libc/sysdeps/linux/mips/bits/sigaction.h')
| -rw-r--r-- | libc/sysdeps/linux/mips/bits/sigaction.h | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/mips/bits/sigaction.h b/libc/sysdeps/linux/mips/bits/sigaction.h new file mode 100644 index 000000000..022507865 --- /dev/null +++ b/libc/sysdeps/linux/mips/bits/sigaction.h @@ -0,0 +1,88 @@ +/* The proper definitions for Linux/MIPS's sigaction. + Copyright (C) 1993,94,95,97,98,99,2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _SIGNAL_H +# error "Never include <bits/sigaction.h> directly; use <signal.h> instead." +#endif + +/* Structure describing the action to be taken when a signal arrives. */ +struct sigaction + { + /* Special flags. */ + unsigned int sa_flags; + + /* Signal handler. */ +#ifdef __USE_POSIX199309 + union + { + /* Used if SA_SIGINFO is not set. */ + __sighandler_t sa_handler; + /* Used if SA_SIGINFO is set. */ + void (*sa_sigaction) (int, siginfo_t *, void *); + } + __sigaction_handler; +# define sa_handler __sigaction_handler.sa_handler +# define sa_sigaction __sigaction_handler.sa_sigaction +#else + __sighandler_t sa_handler; +#endif + /* Additional set of signals to be blocked. */ + __sigset_t sa_mask; + + /* The ABI says here are two unused ints following. */ + /* Restore handler. */ + void (*sa_restorer) (void); + +#if _MIPS_ISA == _MIPS_ISA_MIPS1 || _MIPS_ISA == _MIPS_ISA_MIPS2 + int sa_resv[1]; +#endif + }; + +/* Bits in `sa_flags'. */ +/* Please note that some Linux kernels versions use different values for these + flags which is a bug in those kernel versions. */ +#define SA_NOCLDSTOP 0x00000001 /* Don't send SIGCHLD when children stop. */ +#define SA_NOCLDWAIT 0x00010000 /* Don't create zombie on child death. */ +#define SA_SIGINFO 0x00000008 /* Invoke signal-catching function with + three arguments instead of one. */ +#if defined __USE_UNIX98 || defined __USE_MISC +# define SA_ONSTACK 0x08000000 /* Use signal stack by using `sa_restorer'. */ +# define SA_RESETHAND 0x80000000 /* Reset to SIG_DFL on entry to handler. */ +# define SA_RESTART 0x10000000 /* Restart syscall on signal return. */ +# define SA_NODEFER 0x40000000 /* Don't automatically block the signal when + its handler is being executed. */ +#endif +#ifdef __USE_MISC +# define SA_INTERRUPT 0x20000000 /* Historical no-op. */ + +/* Some aliases for the SA_ constants. */ +# define SA_NOMASK SA_NODEFER +# define SA_ONESHOT SA_RESETHAND +# define SA_STACK SA_ONSTACK +#endif + +/* Values for the HOW argument to `sigprocmask'. */ +#define SIG_NOP 0 /* 0 is unused to catch errors */ +#define SIG_BLOCK 1 /* Block signals. */ +#define SIG_UNBLOCK 2 /* Unblock signals. */ +#define SIG_SETMASK 3 /* Set the set of blocked signals. */ +#ifdef __USE_MISC +# define SIG_SETMASK32 256 /* Goodie from SGI for BSD compatibility: + set only the low 32 bit of the sigset. */ +#endif |