summary refs log tree commit diff
path: root/sysdeps/unix/sysv/linux/pt-raise.c
diff options
context:
space:
mode:
authorRoland McGrath <roland@hack.frob.com>2014-07-07 09:28:38 -0700
committerRoland McGrath <roland@hack.frob.com>2014-07-07 09:28:38 -0700
commit08192659bbeae149e7cb1f4c43547257f7099bb0 (patch)
tree9f602a4e9f0aefdb06bc15a76be46e958e91a58f /sysdeps/unix/sysv/linux/pt-raise.c
parent96baf6ffc57b811bbc424a1fc72ef77dd56d7a18 (diff)
downloadglibc-08192659bbeae149e7cb1f4c43547257f7099bb0.tar.gz
glibc-08192659bbeae149e7cb1f4c43547257f7099bb0.tar.xz
glibc-08192659bbeae149e7cb1f4c43547257f7099bb0.zip
Get rid of nptl/sysdeps/ entirely!
Diffstat (limited to 'sysdeps/unix/sysv/linux/pt-raise.c')
-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
new file mode 100644
index 0000000000..fc26e858b3
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/pt-raise.c
@@ -0,0 +1,38 @@
+/* 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);
+}