Expose android_set_abort_message().

Removes the leading underscores from __android_set_abort_message() and
moves its declaration into a public header file.

Bug: 17059126
Change-Id: I470c79db47ec783ea7a54b800f8b78ecbe7479ab
(cherry picked from commit ce6b1abbb1da797e716d8ec03da4e3b6304fd11d)
(cherry picked from commit 3a25ab952befbe908f6df45805683ebe3bf65863)

3 files changed, 43 insertions, 4 deletions

diff --git a/libc/bionic/libc_logging.cpp b/libc/bionic/libc_logging.cpp
index d0172ed..5655526 100644
--- a/libc/bionic/libc_logging.cpp
+++ b/libc/bionic/libc_logging.cpp
@@ -29,6 +29,7 @@
 #include "../private/libc_logging.h" // Relative path so we can #include this .cpp file for testing.
 #include "../private/ScopedPthreadMutexLocker.h"
 
+#include <android/set_abort_message.h>
 #include <assert.h>
 #include <errno.h>
 #include <fcntl.h>
@@ -629,7 +630,7 @@ static void __libc_fatal(const char* format, va_list args) {
   // Log to the log for the benefit of regular app developers (whose stdout and stderr are closed).
   __libc_write_log(ANDROID_LOG_FATAL, "libc", msg);
 
-  __android_set_abort_message(msg);
+  android_set_abort_message(msg);
 }
 
 void __libc_fatal_no_abort(const char* format, ...) {
@@ -647,7 +648,7 @@ void __libc_fatal(const char* format, ...) {
   abort();
 }
 
-void __android_set_abort_message(const char* msg) {
+void android_set_abort_message(const char* msg) {
   ScopedPthreadMutexLocker locker(&g_abort_msg_lock);
 
   if (__abort_message_ptr == NULL) {
diff --git a/libc/include/android/set_abort_message.h b/libc/include/android/set_abort_message.h
new file mode 100644
index 0000000..4b3d82b
--- /dev/null
+++ b/libc/include/android/set_abort_message.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2014 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.
+ */
+
+#ifndef _SET_ABORT_MESSAGE_H
+#define _SET_ABORT_MESSAGE_H
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+
+void android_set_abort_message(const char* msg);
+
+__END_DECLS
+
+#endif // _SET_ABORT_MESSAGE_H
diff --git a/libc/private/libc_logging.h b/libc/private/libc_logging.h
index 35c756b..da2192b 100644
--- a/libc/private/libc_logging.h
+++ b/libc/private/libc_logging.h
@@ -69,8 +69,6 @@ struct abort_msg_t {
   char msg[0];
 };
 
-void __android_set_abort_message(const char* msg);
-
 //
 // Formats a message to the log (priority 'fatal'), then aborts.
 //