am 83362689: merge from open-source master

Merge commit '83362689f5b1f6393d376d242fe29541b63ead2d'

* commit '83362689f5b1f6393d376d242fe29541b63ead2d':
  added and modified linker to support SuperH architecture
  Add the BSD sys_signame array.
  added and modified bionic code to support SuperH architecture

1 files changed, 37 insertions, 0 deletions

diff --git a/libc/arch-sh/bionic/__get_tls.c b/libc/arch-sh/bionic/__get_tls.c
new file mode 100644
index 0000000..8a5e4ff
--- /dev/null
+++ b/libc/arch-sh/bionic/__get_tls.c
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+/* see the implementation of __set_tls and pthread.c to understand this
+ * code. Basically, the content of fs:[0] always is a pointer to the base
+ * address of the tls region
+ */
+void *__get_tls(void)
+{
+    void *tls;
+    asm volatile("stc gbr, %0" : "=r"(tls));
+    return tls;
+}