diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/sigwaitinfo.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/sigwaitinfo.c | 29 |
1 files changed, 22 insertions, 7 deletions
diff --git a/sysdeps/unix/sysv/linux/sigwaitinfo.c b/sysdeps/unix/sysv/linux/sigwaitinfo.c index 102b924904..ade5ce9175 100644 --- a/sysdeps/unix/sysv/linux/sigwaitinfo.c +++ b/sysdeps/unix/sysv/linux/sigwaitinfo.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1997, 1998, 2000, 2002 Free Software Foundation, Inc. +/* Copyright (C) 1997, 1998, 2000, 2002, 2003 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 @@ -30,6 +30,25 @@ extern int __syscall_rt_sigtimedwait (const sigset_t *__unbounded, siginfo_t *__ const struct timespec *__unbounded, size_t); +static int +do_sigwaitinfo (const sigset_t *set, siginfo_t *info) +{ + /* XXX The size argument hopefully will have to be changed to the + real size of the user-level sigset_t. */ + int result = INLINE_SYSCALL (rt_sigtimedwait, 4, CHECK_SIGSET (set), + CHECK_1 (info), NULL, _NSIG / 8); + + /* The kernel generates a SI_TKILL code in si_code in case tkill is + used. tkill is transparently used in raise(). Since having + SI_TKILL as a code is useful in general we fold the results + here. */ + if (result != -1 && info != NULL && info->si_code == SI_TKILL) + info->si_code = SI_USER; + + return result; +} + + /* Return any pending signal or wait for one for the given time. */ int __sigwaitinfo (set, info) @@ -37,17 +56,13 @@ __sigwaitinfo (set, info) siginfo_t *info; { if (SINGLE_THREAD_P) - /* XXX The size argument hopefully will have to be changed to the - real size of the user-level sigset_t. */ - return INLINE_SYSCALL (rt_sigtimedwait, 4, CHECK_SIGSET (set), - CHECK_1 (info), NULL, _NSIG / 8); + return do_sigwaitinfo (set, info); int oldtype = LIBC_CANCEL_ASYNC (); /* XXX The size argument hopefully will have to be changed to the real size of the user-level sigset_t. */ - int result = INLINE_SYSCALL (rt_sigtimedwait, 4, CHECK_SIGSET (set), - CHECK_1 (info), NULL, _NSIG / 8); + int result = do_sigwaitinfo (set, info); LIBC_CANCEL_RESET (oldtype); |