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authorUlrich Drepper <drepper@redhat.com>2005-10-01 17:20:34 +0000
committerUlrich Drepper <drepper@redhat.com>2005-10-01 17:20:34 +0000
commitdff9a7a163e9f5e28f36f9a701acf74f8f9d7968 (patch)
treeff9dbb35ab56c666e5d3f2a22bd067a8cf1fd54b /nptl/init.c
parent2ff89ea46f2c817ad7dd5ce5dc0cc1119da861b6 (diff)
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2005-10-01 Ulrich Drepper <drepper@redhat.com>
Jakub Jelinek <jakub@redhat.com> * descr.h: Define SETXID_BIT and SETXID_BITMASK. Adjust CANCEL_RESTMASK. (struct pthread): Move specific_used field to avoid padding. Add setxid_futex field. * init.c (sighandler_setxid): Reset setxid flag and release the setxid futex. * allocatestack.c (setxid_signal_thread): New function. Broken out of the bodies of the two loops in __nptl_setxid. For undetached threads check whether they are exiting and if yes, don't send a signal. (__nptl_setxid): Simplify loops by using setxid_signal_thread. * pthread_create.c (start_thread): For undetached threads, check whether setxid bit is set. If yes, wait until signal has been processed. * allocatestack.c (STACK_VARIABLES): Initialize them. * pthread_create.c (__pthread_create_2_1): Initialize pd.
Diffstat (limited to 'nptl/init.c')
-rw-r--r--nptl/init.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/nptl/init.c b/nptl/init.c
index 86745af8d1..de704122d1 100644
--- a/nptl/init.c
+++ b/nptl/init.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
@@ -211,6 +211,15 @@ sighandler_setxid (int sig, siginfo_t *si, void *ctx)
if (atomic_decrement_val (&__xidcmd->cntr) == 0)
lll_futex_wake (&__xidcmd->cntr, 1);
+
+ /* Reset the SETXID flag. */
+ struct pthread *self = THREAD_SELF;
+ int flags = THREAD_GETMEM (self, cancelhandling);
+ THREAD_SETMEM (self, cancelhandling, flags & ~SETXID_BITMASK);
+
+ /* And release the futex. */
+ self->setxid_futex = 1;
+ lll_futex_wake (&self->setxid_futex, 1);
}