diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/bits/sigaction.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/bits/sigaction.h | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/sysdeps/unix/sysv/linux/bits/sigaction.h b/sysdeps/unix/sysv/linux/bits/sigaction.h index 1806bb2e92..b6637e5205 100644 --- a/sysdeps/unix/sysv/linux/bits/sigaction.h +++ b/sysdeps/unix/sysv/linux/bits/sigaction.h @@ -25,7 +25,16 @@ struct sigaction { /* Signal handler. */ - __sighandler_t sa_handler; + union + { + /* Used if SA_SIGINFO is not set. */ + __sighandler_t sa_handler; + /* Used if SA_SIGINFO is set. */ + void (*sa_sigaction) __P ((int, siginfo_t *, void *)); + } + __sigaction_handler; +#define sa_handler __sigaction_handler.sa_handler +#define sa_sigaction __sigaction_handler.sa_sigaction /* Additional set of signals to be blocked. */ __sigset_t sa_mask; @@ -39,17 +48,22 @@ struct sigaction /* Bits in `sa_flags'. */ #define SA_NOCLDSTOP 1 /* Don't send SIGCHLD when children stop. */ -#ifdef __USE_MISC -# define SA_STACK 0x08000000 /* Use signal stack by using `sa_restorer'. */ +#define SA_SIGINFO 4 /* 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_RESTART 0x10000000 /* Restart syscall on signal return. */ -# define SA_INTERRUPT 0x20000000 /* Historical no-op. */ # define SA_NODEFER 0x40000000 /* Don't automatically block the signal when its handler is being executed. */ # define SA_RESETHAND 0x80000000 /* Reset to SIG_DFL on entry to handler. */ +#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'. */ |