1 files changed, 75 insertions, 0 deletions
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/raise.c b/libpthread/nptl/sysdeps/unix/sysv/linux/raise.c
new file mode 100644
index 000000000..de794e4ab
--- /dev/null
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/raise.c
@@ -0,0 +1,75 @@
+/* Copyright (C) 2002, 2003, 2004 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 <limits.h>
+#include <signal.h>
+#include <sysdep.h>
+#include <pthreadP.h>
+#include <bits/kernel-features.h>
+
+
+extern __typeof(raise) __raise;
+int __raise (int sig)
+{
+  struct pthread *pd = THREAD_SELF;
+#if __ASSUME_TGKILL || defined __NR_tgkill
+  pid_t pid = THREAD_GETMEM (pd, pid);
+#endif
+  pid_t selftid = THREAD_GETMEM (pd, tid);
+  if (selftid == 0)
+    {
+      /* This system call is not supposed to fail.  */
+#ifdef INTERNAL_SYSCALL
+      INTERNAL_SYSCALL_DECL (err);
+      selftid = INTERNAL_SYSCALL (gettid, err, 0);
+#else
+      selftid = INLINE_SYSCALL (gettid, 0);
+#endif
+      THREAD_SETMEM (pd, tid, selftid);
+
+#if __ASSUME_TGKILL || defined __NR_tgkill
+      /* We do not set the PID field in the TID here since we might be
+	 called from a signal handler while the thread executes fork.  */
+      pid = selftid;
+#endif
+    }
+#if __ASSUME_TGKILL || defined __NR_tgkill
+  else
+    /* raise is an async-safe function.  It could be called while the
+       fork/vfork function temporarily invalidated the PID field.  Adjust for
+       that.  */
+    if (__builtin_expect (pid <= 0, 0))
+      pid = (pid & INT_MAX) == 0 ? selftid : -pid;
+#endif
+
+#if __ASSUME_TGKILL
+  return INLINE_SYSCALL (tgkill, 3, pid, selftid, sig);
+#else
+# ifdef __NR_tgkill
+  int res = INLINE_SYSCALL (tgkill, 3, pid, selftid, sig);
+  if (res != -1 || errno != ENOSYS)
+    return res;
+# endif
+  return INLINE_SYSCALL (tkill, 2, selftid, sig);
+#endif
+}
+libc_hidden_proto(raise)
+weak_alias(__raise, raise)
+libc_hidden_weak(raise)