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| author | Ulrich Drepper <drepper@redhat.com> | 2003-06-15 21:22:26 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2003-06-15 21:22:26 +0000 |
| commit | 7a1147946ecd5fe962e2959afe69c25c7a553672 (patch) | |
| tree | a6ffd9a6c377d19c531d24e4ac5f9e820a14b72e /sysdeps/posix | |
| parent | 1fde494e69792603263bdf85819831f00d29cee4 (diff) | |
| download | glibc-7a1147946ecd5fe962e2959afe69c25c7a553672.zip glibc-7a1147946ecd5fe962e2959afe69c25c7a553672.tar.gz glibc-7a1147946ecd5fe962e2959afe69c25c7a553672.tar.bz2 | |
Update.
2003-06-15 Ulrich Drepper <drepper@redhat.com>
Fix cancellation point handling wrt exception based cleanup.
* io/Makefile: Compile fcntl.c, poll.c, and lockf.c with exceptions.
* misc/Makefile: Compile pselect.c, readv.c, writev.c, and usleep.c
with exceptions.
* posix/Makefile: Compile pread.c, pread64.c, pwrite.c, pwrite64.c,
sleep.c, wait.c, waitid.c, and waitpid.c with exceptions.
* rt/Makefile: Compile aio_suspend.c and clock_nanosleep.c with
exceptions.
* signal/Makefile: Compile sigpause.c, sigsuspend.c, sigtimedwait.c,
sigwait.c, and sigwaitinfo.c with exceptions.
* stdlib/Makefile: Compile system.c with exceptions.
* sysvipc/Makefile: Compile msgrcv.c and msgsnd.c with exceptions.
* termios/Makefile: Compile tcdrain.c with exceptions.
* sysdeps/generic/lockf.c: Add comment explaining the cancellation
situation.
* sysdeps/generic/pselect.c: Likewise.
* sysdeps/posix/sigpause.c: Likewise.
* sysdeps/posix/system.c: Likewise.
* sysdeps/posix/waitid.c: Likewise.
* sysdeps/unix/sysv/linux/sleep.c: Likewise.
* sysdeps/unix/sysv/linux/usleep.c: Likewise.
* sysdeps/unix/sysv/linux/i386/sysdep.h: Major rewrite of
INTERNAL_SYSCALL to not use push inside asm statement so that
unwind info is correct around the syscall.
* sysdeps/unix/clock_nanosleep.c: Add cancellation support.
* sysdeps/unix/sysv/linux/clock_nanosleep.c: Likewise.
Diffstat (limited to 'sysdeps/posix')
| -rw-r--r-- | sysdeps/posix/sigpause.c | 3 | ||||
| -rw-r--r-- | sysdeps/posix/system.c | 3 | ||||
| -rw-r--r-- | sysdeps/posix/waitid.c | 5 |
3 files changed, 10 insertions, 1 deletions
diff --git a/sysdeps/posix/sigpause.c b/sysdeps/posix/sigpause.c index 78b247e..98b69d3 100644 --- a/sysdeps/posix/sigpause.c +++ b/sysdeps/posix/sigpause.c @@ -40,6 +40,9 @@ do_sigpause (int sig_or_mask, int is_sig) else if (sigset_set_old_mask (&set, sig_or_mask) < 0) return -1; + /* Note the sigpause() is a cancellation point. But since we call + sigsuspend() which itself is a cancellation point we do not have + to do anything here. */ return __sigsuspend (&set); } diff --git a/sysdeps/posix/system.c b/sysdeps/posix/system.c index b1c826e..8548313 100644 --- a/sysdeps/posix/system.c +++ b/sysdeps/posix/system.c @@ -162,6 +162,9 @@ do_system (const char *line) } while (child != pid); #else + /* Note the system() is a cancellation point. But since we call + waitpid() which itself is a cancellation point we do not + have to do anything here. */ if (TEMP_FAILURE_RETRY (__waitpid (pid, &status, 0)) != pid) status = -1; #endif diff --git a/sysdeps/posix/waitid.c b/sysdeps/posix/waitid.c index 679d97d..e388d17 100644 --- a/sysdeps/posix/waitid.c +++ b/sysdeps/posix/waitid.c @@ -1,5 +1,5 @@ /* Pseudo implementation of waitid. - Copyright (C) 1997, 1998, 2002 Free Software Foundation, Inc. + Copyright (C) 1997, 1998, 2002, 2003 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1997. @@ -66,6 +66,9 @@ do_waitid (idtype_t idtype, id_t id, siginfo_t *infop, int options) return -1; } + /* Note the waitid() is a cancellation point. But since we call + waitpid() which itself is a cancellation point we do not have + to do anything here. */ child = __waitpid (pid, &status, options); if (child == -1) |