New version of unwinder.
Bug: 23762183
Test: All unit tests pass.
Change-Id: I0ac69e55af56e1142c0a1ee3715cdc48f2ed3ec3
diff --git a/libunwindstack/Log.cpp b/libunwindstack/Log.cpp
new file mode 100644
index 0000000..faeb66c
--- /dev/null
+++ b/libunwindstack/Log.cpp
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdarg.h>
+#include <stdint.h>
+#include <stdio.h>
+
+#include <string>
+
+#define LOG_TAG "unwind"
+#include <log/log.h>
+
+#include <android-base/stringprintf.h>
+
+#include "Log.h"
+
+static bool g_print_to_stdout = false;
+
+void log_to_stdout(bool enable) {
+ g_print_to_stdout = enable;
+}
+
+// Send the data to the log.
+void log(uint8_t indent, const char* format, ...) {
+ std::string real_format;
+ if (indent > 0) {
+ real_format = android::base::StringPrintf("%*s%s", 2 * indent, " ", format);
+ } else {
+ real_format = format;
+ }
+ va_list args;
+ va_start(args, format);
+ if (g_print_to_stdout) {
+ real_format += '\n';
+ vprintf(real_format.c_str(), args);
+ } else {
+ LOG_PRI_VA(ANDROID_LOG_INFO, LOG_TAG, real_format.c_str(), args);
+ }
+ va_end(args);
+}