commit 61d4097737c897847b7600d7d5ddbd384efb8540
author Christopher Ferris <cferris@google.com> Mon Jun 12 19:14:20 2017 -0700
committer Christopher Ferris <cferris@google.com> Fri Jun 16 14:25:29 2017 -0700
tree c2e3905c87947328bc11a592bed950cc01c18c6b
parent 9b537f24bd375cf1954e94efbc8ee7d97b5a1e8e

Add EH frame and debug frame support.

Bug: 23762183

Test: Pass new unit tests.
Change-Id: I1bfe900e068017ff31998f359bf98d4c5c9af2a5

libunwindstack/ElfInterface.h

diff --git a/libunwindstack/ElfInterface.h b/libunwindstack/ElfInterface.h
index 944146c..1cc8aa0 100644
--- a/libunwindstack/ElfInterface.h
+++ b/libunwindstack/ElfInterface.h
@@ -25,6 +25,8 @@
 #include <unordered_map>
 #include <vector>
 
+#include "DwarfSection.h"
+
 // Forward declarations.
 class Memory;
 class Regs;
@@ -68,10 +70,18 @@
   uint64_t dynamic_size() { return dynamic_size_; }
   uint64_t eh_frame_offset() { return eh_frame_offset_; }
   uint64_t eh_frame_size() { return eh_frame_size_; }
+  uint64_t debug_frame_offset() { return debug_frame_offset_; }
+  uint64_t debug_frame_size() { return debug_frame_size_; }
   uint64_t gnu_debugdata_offset() { return gnu_debugdata_offset_; }
   uint64_t gnu_debugdata_size() { return gnu_debugdata_size_; }
 
+  DwarfSection* eh_frame() { return eh_frame_.get(); }
+  DwarfSection* debug_frame() { return debug_frame_.get(); }
+
  protected:
+  template <typename AddressType>
+  void InitHeadersWithTemplate();
+
   template <typename EhdrType, typename PhdrType, typename ShdrType>
   bool ReadAllHeaders();
 
@@ -105,6 +115,9 @@
 
   uint8_t soname_type_ = SONAME_UNKNOWN;
   std::string soname_;
+
+  std::unique_ptr<DwarfSection> eh_frame_;
+  std::unique_ptr<DwarfSection> debug_frame_;
 };
 
 class ElfInterface32 : public ElfInterface {
@@ -116,8 +129,7 @@
     return ElfInterface::ReadAllHeaders<Elf32_Ehdr, Elf32_Phdr, Elf32_Shdr>();
   }
 
-  void InitHeaders() override {
-  }
+  void InitHeaders() override { ElfInterface::InitHeadersWithTemplate<uint32_t>(); }
 
   bool GetSoname(std::string* soname) override {
     return ElfInterface::GetSonameWithTemplate<Elf32_Dyn>(soname);
@@ -137,8 +149,7 @@
     return ElfInterface::ReadAllHeaders<Elf64_Ehdr, Elf64_Phdr, Elf64_Shdr>();
   }
 
-  void InitHeaders() override {
-  }
+  void InitHeaders() override { ElfInterface::InitHeadersWithTemplate<uint64_t>(); }
 
   bool GetSoname(std::string* soname) override {
     return ElfInterface::GetSonameWithTemplate<Elf64_Dyn>(soname);