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2003-07-07 Ulrich Drepper <drepper@redhat.com> * descr.h (struct pthread): Add pid field. * allocatestack.c (allocate_stack): Initialize pid field in descriptor. (__reclaim_stacks): Likewise. * init.c (sigcancel_handler): If __ASSUME_CORRECT_SI_PID is defined also check for PID of the signal source. (__pthread_initialize_minimal_internal): Also initialize pid field of initial thread's descriptor. * pthread_cancel.c: Use tgkill instead of tkill if possible. * sysdeps/unix/sysv/linux/fork.c: Likewise. * sysdeps/unix/sysv/linux/pt-raise.c: Likewise. * sysdeps/unix/sysv/linux/pthread_kill.c: Likewise. * sysdeps/unix/sysv/linux/raise.c: Likewise.
65 lines
2.0 KiB
C
65 lines
2.0 KiB
C
/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <errno.h>
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#include <signal.h>
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#include <pthreadP.h>
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#include <tls.h>
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#include <sysdep.h>
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#include <kernel-features.h>
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int
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__pthread_kill (threadid, signo)
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pthread_t threadid;
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int signo;
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{
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struct pthread *pd = (struct pthread *) threadid;
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/* Make sure the descriptor is valid. */
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if (INVALID_TD_P (pd))
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/* Not a valid thread handle. */
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return ESRCH;
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/* Disallow sending the signal we use for cancellation. */
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if (signo == SIGCANCEL || signo == SIGTIMER)
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return EINVAL;
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/* We have a special syscall to do the work. */
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INTERNAL_SYSCALL_DECL (err);
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int val;
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#if __ASSUME_TGKILL
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val = INTERNAL_SYSCALL (tgkill, err, 3, THREAD_GETMEM (THREAD_SELF, pid),
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pd->tid, signo);
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#else
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# ifdef __NR_tgkill
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val = INTERNAL_SYSCALL (tgkill, err, 3, THREAD_GETMEM (THREAD_SELF, pid),
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pd->tid, signo);
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if (INTERNAL_SYSCALL_ERROR_P (val, err)
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&& INTERNAL_SYSCALL_ERRNO (val, err) == ENOSYS)
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# endif
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val = INTERNAL_SYSCALL (tkill, err, 2, pd->tid, signo);
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#endif
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return (INTERNAL_SYSCALL_ERROR_P (val, err)
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? INTERNAL_SYSCALL_ERRNO (val, err) : 0);
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}
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strong_alias (__pthread_kill, pthread_kill)
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