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-rw-r--r--sysdeps/unix/sysv/linux/pt-raise.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/pt-raise.c b/sysdeps/unix/sysv/linux/pt-raise.c
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index 0000000000..fc26e858b3
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+++ b/sysdeps/unix/sysv/linux/pt-raise.c
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+/* Copyright (C) 2002-2014 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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <signal.h>
+#include <sysdep.h>
+#include <tls.h>
+
+
+int
+raise (sig)
+     int sig;
+{
+  /* 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 (__glibc_unlikely (pid < 0))
+    pid = -pid;
+
+  return INLINE_SYSCALL (tgkill, 3, pid, THREAD_GETMEM (THREAD_SELF, tid),
+			 sig);
+}