diff options
Diffstat (limited to 'libpthread/nptl/sysdeps/unix/sysv/linux/pt-raise.c')
| -rw-r--r-- | libpthread/nptl/sysdeps/unix/sysv/linux/pt-raise.c | 53 | 
1 files changed, 53 insertions, 0 deletions
| diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/pt-raise.c b/libpthread/nptl/sysdeps/unix/sysv/linux/pt-raise.c new file mode 100644 index 000000000..7bee29784 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/pt-raise.c @@ -0,0 +1,53 @@ +/* Copyright (C) 2002, 2003 Free Software Foundation, Inc. +   This file is part of the GNU C Library. +   Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. + +   The GNU C Library is free software; you can redistribute it and/or +   modify it under the terms of the GNU Lesser General Public +   License as published by the Free Software Foundation; either +   version 2.1 of the License, or (at your option) any later version. + +   The GNU C Library is distributed in the hope that it will be useful, +   but WITHOUT ANY WARRANTY; without even the implied warranty of +   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU +   Lesser General Public License for more details. + +   You should have received a copy of the GNU Lesser General Public +   License along with the GNU C Library; if not, write to the Free +   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA +   02111-1307 USA.  */ + +#include <errno.h> +#include <signal.h> +#include <sysdep.h> +#include <tls.h> +#include <bits/kernel-features.h> + +extern __typeof(raise) __raise; +int __raise (int sig) +{ +#if __ASSUME_TGKILL || defined __NR_tgkill +  /* raise is an async-safe function.  It could be called while the +     fork function temporarily invalidated the PID field.  Adjust for +     that.  */ +  pid_t pid = THREAD_GETMEM (THREAD_SELF, pid); +  if (__builtin_expect (pid < 0, 0)) +    pid = -pid; +#endif + +#if __ASSUME_TGKILL +  return INLINE_SYSCALL (tgkill, 3, pid, THREAD_GETMEM (THREAD_SELF, tid), +			 sig); +#else +# ifdef __NR_tgkill +  int res = INLINE_SYSCALL (tgkill, 3, pid, THREAD_GETMEM (THREAD_SELF, tid), +			    sig); +  if (res != -1 || errno != ENOSYS) +    return res; +# endif +  return INLINE_SYSCALL (tkill, 2, THREAD_GETMEM (THREAD_SELF, tid), sig); +#endif +} +libc_hidden_proto(raise) +weak_alias(__raise, raise) +libc_hidden_weak(raise) | 
