Elf interface for new unwinder.
This cl includes the code to read arm unwind information from a shared
library.
Bug: 23762183
Test: Passes all unit tests. I can dump the arm unwind information
Test: for an arm shared library.
Change-Id: I43501ea2eab843b81de8bd5128401dd1971af8d3
diff --git a/libunwindstack/Memory.h b/libunwindstack/Memory.h
index 5ab031d..c5316a1 100644
--- a/libunwindstack/Memory.h
+++ b/libunwindstack/Memory.h
@@ -22,10 +22,7 @@
#include <unistd.h>
#include <string>
-
-#include <android-base/unique_fd.h>
-
-constexpr bool kMemoryStatsEnabled = true;
+#include <vector>
class Memory {
public:
@@ -50,15 +47,34 @@
}
};
+class MemoryBuffer : public Memory {
+ public:
+ MemoryBuffer() = default;
+ virtual ~MemoryBuffer() = default;
+
+ bool Read(uint64_t addr, void* dst, size_t size) override;
+
+ uint8_t* GetPtr(size_t offset);
+
+ void Resize(size_t size) { raw_.resize(size); }
+
+ uint64_t Size() { return raw_.size(); }
+
+ private:
+ std::vector<uint8_t> raw_;
+};
+
class MemoryFileAtOffset : public Memory {
public:
MemoryFileAtOffset() = default;
virtual ~MemoryFileAtOffset();
- bool Init(const std::string& file, uint64_t offset);
+ bool Init(const std::string& file, uint64_t offset, uint64_t size = UINT64_MAX);
bool Read(uint64_t addr, void* dst, size_t size) override;
+ void Clear();
+
protected:
size_t size_ = 0;
size_t offset_ = 0;