ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/package/utils/adbd/src/include/backtrace/Backtrace.h b/package/utils/adbd/src/include/backtrace/Backtrace.h
new file mode 100644
index 0000000..e07d322
--- /dev/null
+++ b/package/utils/adbd/src/include/backtrace/Backtrace.h
@@ -0,0 +1,133 @@
+/*
+ * 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.
+ */
+
+#ifndef _BACKTRACE_BACKTRACE_H
+#define _BACKTRACE_BACKTRACE_H
+
+#include <inttypes.h>
+#include <stdint.h>
+
+#include <string>
+#include <vector>
+
+#include <backtrace/backtrace_constants.h>
+#include <backtrace/BacktraceMap.h>
+
+#if __LP64__
+#define PRIPTR "016" PRIxPTR
+typedef uint64_t word_t;
+#else
+#define PRIPTR "08" PRIxPTR
+typedef uint32_t word_t;
+#endif
+
+struct backtrace_frame_data_t {
+ size_t num; // The current fame number.
+ uintptr_t pc; // The absolute pc.
+ uintptr_t sp; // The top of the stack.
+ size_t stack_size; // The size of the stack, zero indicate an unknown stack size.
+ const backtrace_map_t* map; // The map associated with the given pc.
+ std::string func_name; // The function name associated with this pc, NULL if not found.
+ uintptr_t func_offset; // pc relative to the start of the function, only valid if func_name is not NULL.
+};
+
+// Forward declarations.
+class BacktraceImpl;
+
+#if defined(__APPLE__)
+struct __darwin_ucontext;
+typedef __darwin_ucontext ucontext_t;
+#else
+struct ucontext;
+typedef ucontext ucontext_t;
+#endif
+
+class Backtrace {
+public:
+ // Create the correct Backtrace object based on what is to be unwound.
+ // If pid < 0 or equals the current pid, then the Backtrace object
+ // corresponds to the current process.
+ // If pid < 0 or equals the current pid and tid >= 0, then the Backtrace
+ // object corresponds to a thread in the current process.
+ // If pid >= 0 and tid < 0, then the Backtrace object corresponds to a
+ // different process.
+ // Tracing a thread in a different process is not supported.
+ // If map is NULL, then create the map and manage it internally.
+ // If map is not NULL, the map is still owned by the caller.
+ static Backtrace* Create(pid_t pid, pid_t tid, BacktraceMap* map = NULL);
+
+ virtual ~Backtrace();
+
+ // Get the current stack trace and store in the backtrace_ structure.
+ virtual bool Unwind(size_t num_ignore_frames, ucontext_t* context = NULL);
+
+ // Get the function name and offset into the function given the pc.
+ // If the string is empty, then no valid function name was found.
+ virtual std::string GetFunctionName(uintptr_t pc, uintptr_t* offset);
+
+ // Find the map associated with the given pc.
+ virtual const backtrace_map_t* FindMap(uintptr_t pc);
+
+ // Read the data at a specific address.
+ virtual bool ReadWord(uintptr_t ptr, word_t* out_value) = 0;
+
+ // Create a string representing the formatted line of backtrace information
+ // for a single frame.
+ virtual std::string FormatFrameData(size_t frame_num);
+ virtual std::string FormatFrameData(const backtrace_frame_data_t* frame);
+
+ pid_t Pid() { return pid_; }
+ pid_t Tid() { return tid_; }
+ size_t NumFrames() { return frames_.size(); }
+
+ const backtrace_frame_data_t* GetFrame(size_t frame_num) {
+ if (frame_num >= frames_.size()) {
+ return NULL;
+ }
+ return &frames_[frame_num];
+ }
+
+ typedef std::vector<backtrace_frame_data_t>::iterator iterator;
+ iterator begin() { return frames_.begin(); }
+ iterator end() { return frames_.end(); }
+
+ typedef std::vector<backtrace_frame_data_t>::const_iterator const_iterator;
+ const_iterator begin() const { return frames_.begin(); }
+ const_iterator end() const { return frames_.end(); }
+
+ BacktraceMap* GetMap() { return map_; }
+
+protected:
+ Backtrace(BacktraceImpl* impl, pid_t pid, BacktraceMap* map);
+
+ virtual bool VerifyReadWordArgs(uintptr_t ptr, word_t* out_value);
+
+ bool BuildMap();
+
+ pid_t pid_;
+ pid_t tid_;
+
+ BacktraceMap* map_;
+ bool map_shared_;
+
+ std::vector<backtrace_frame_data_t> frames_;
+
+ BacktraceImpl* impl_;
+
+ friend class BacktraceImpl;
+};
+
+#endif // _BACKTRACE_BACKTRACE_H