Create a single backtrace library.
This library will be used to abstract away getting backtrace
data from how it is implemented. This is the first step to
replacing libcorkscrew with libunwind.
Bug: 8410085
Change-Id: Ie8f159e96a055d378e1ddc72d40239fba4cf52b7
diff --git a/libbacktrace/stubs.c b/libbacktrace/stubs.c
new file mode 100644
index 0000000..1741601
--- /dev/null
+++ b/libbacktrace/stubs.c
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+
+#define LOG_TAG "libbacktrace"
+
+#include <cutils/log.h>
+#include <backtrace/backtrace.h>
+
+bool backtrace_get_data(backtrace_t* backtrace, pid_t tid) {
+ ALOGW("backtrace_get_data: unsupported architecture.\n");
+ return true;
+}
+
+void backtrace_free_data(backtrace_t* backtrace) {
+ ALOGW("backtrace_free_data: unsupported architecture.\n");
+}
+
+bool backtrace_read_word(const backtrace_t* backtrace, uintptr_t ptr,
+ uint32_t* out_value) {
+ ALOGW("backtrace_read_word: unsupported architecture.\n");
+ return false;
+}
+
+const char *backtrace_get_map_info(const backtrace_t* backtrace,
+ uintptr_t pc, uintptr_t* start_pc) {
+ ALOGW("backtrace_get_map_info: unsupported architecture.\n");
+ return NULL;
+}
+
+char* backtrace_get_proc_name(const backtrace_t* backtrace, uintptr_t pc,
+ uintptr_t* offset) {
+ ALOGW("backtrace_get_proc_name: unsupported architecture.\n");
+ return NULL;
+}
+
+void backtrace_format_frame_data(
+ const backtrace_frame_data_t* frame, size_t frame_num, char *buf, size_t buf_size) {
+ ALOGW("backtrace_format_frame_data: unsupported architecture.\n");
+ buf[0] = '\0';
+}