Merge "Handle when bias is different in elf headers."

31 files changed, 651 insertions, 237 deletions

diff --git a/libunwindstack/Android.bp b/libunwindstack/Android.bp
index 8d2299fcb..b0f37867f 100644
--- a/libunwindstack/Android.bp
+++ b/libunwindstack/Android.bp
@@ -245,6 +245,7 @@ cc_defaults {
         "tests/files/offline/jit_debug_x86/*",
         "tests/files/offline/jit_map_arm/*",
         "tests/files/offline/gnu_debugdata_arm/*",
+        "tests/files/offline/load_bias_different_section_bias_arm64/*",
         "tests/files/offline/load_bias_ro_rx_x86_64/*",
         "tests/files/offline/offset_arm/*",
         "tests/files/offline/shared_lib_in_apk_arm64/*",
diff --git a/libunwindstack/DwarfEhFrameWithHdr.cpp b/libunwindstack/DwarfEhFrameWithHdr.cpp
index 802beca85..24b94f0b3 100644
--- a/libunwindstack/DwarfEhFrameWithHdr.cpp
+++ b/libunwindstack/DwarfEhFrameWithHdr.cpp
@@ -32,8 +32,8 @@ static inline bool IsEncodingRelative(uint8_t encoding) {
 }
 
 template <typename AddressType>
-bool DwarfEhFrameWithHdr<AddressType>::Init(uint64_t offset, uint64_t size, uint64_t load_bias) {
-  load_bias_ = load_bias;
+bool DwarfEhFrameWithHdr<AddressType>::Init(uint64_t offset, uint64_t size, int64_t section_bias) {
+  section_bias_ = section_bias;
 
   memory_.clear_func_offset();
   memory_.clear_text_offset();
@@ -138,7 +138,7 @@ DwarfEhFrameWithHdr<AddressType>::GetFdeInfoFromIndex(size_t index) {
 
   // Relative encodings require adding in the load bias.
   if (IsEncodingRelative(table_encoding_)) {
-    value += load_bias_;
+    value += section_bias_;
   }
   info->pc = value;
   return info;
diff --git a/libunwindstack/DwarfEhFrameWithHdr.h b/libunwindstack/DwarfEhFrameWithHdr.h
index 0e5eef720..b8dd3dd40 100644
--- a/libunwindstack/DwarfEhFrameWithHdr.h
+++ b/libunwindstack/DwarfEhFrameWithHdr.h
@@ -38,7 +38,7 @@ class DwarfEhFrameWithHdr : public DwarfSectionImpl<AddressType> {
   using DwarfSectionImpl<AddressType>::entries_offset_;
   using DwarfSectionImpl<AddressType>::entries_end_;
   using DwarfSectionImpl<AddressType>::last_error_;
-  using DwarfSectionImpl<AddressType>::load_bias_;
+  using DwarfSectionImpl<AddressType>::section_bias_;
 
   struct FdeInfo {
     AddressType pc;
@@ -61,7 +61,7 @@ class DwarfEhFrameWithHdr : public DwarfSectionImpl<AddressType> {
     return pc + this->memory_.cur_offset() - 4;
   }
 
-  bool Init(uint64_t offset, uint64_t size, uint64_t load_bias) override;
+  bool Init(uint64_t offset, uint64_t size, int64_t section_bias) override;
 
   const DwarfFde* GetFdeFromPc(uint64_t pc) override;
 
diff --git a/libunwindstack/DwarfMemory.cpp b/libunwindstack/DwarfMemory.cpp
index b5059007c..2e388c689 100644
--- a/libunwindstack/DwarfMemory.cpp
+++ b/libunwindstack/DwarfMemory.cpp
@@ -111,7 +111,7 @@ bool DwarfMemory::AdjustEncodedValue(uint8_t encoding, uint64_t* value) {
       // Nothing to do.
       break;
     case DW_EH_PE_pcrel:
-      if (pc_offset_ == static_cast<uint64_t>(-1)) {
+      if (pc_offset_ == INT64_MAX) {
         // Unsupported encoding.
         return false;
       }
diff --git a/libunwindstack/DwarfSection.cpp b/libunwindstack/DwarfSection.cpp
index 849a31a90..cdb61413b 100644
--- a/libunwindstack/DwarfSection.cpp
+++ b/libunwindstack/DwarfSection.cpp
@@ -333,7 +333,7 @@ bool DwarfSectionImpl<AddressType>::FillInFde(DwarfFde* fde) {
   memory_.set_cur_offset(cur_offset);
 
   // The load bias only applies to the start.
-  memory_.set_pc_offset(load_bias_);
+  memory_.set_pc_offset(section_bias_);
   bool valid = memory_.ReadEncodedValue<AddressType>(cie->fde_address_encoding, &fde->pc_start);
   fde->pc_start = AdjustPcFromFde(fde->pc_start);
 
@@ -591,8 +591,9 @@ bool DwarfSectionImpl<AddressType>::Log(uint8_t indent, uint64_t pc, const Dwarf
 }
 
 template <typename AddressType>
-bool DwarfSectionImplNoHdr<AddressType>::Init(uint64_t offset, uint64_t size, uint64_t load_bias) {
-  load_bias_ = load_bias;
+bool DwarfSectionImplNoHdr<AddressType>::Init(uint64_t offset, uint64_t size,
+                                              int64_t section_bias) {
+  section_bias_ = section_bias;
   entries_offset_ = offset;
   next_entries_offset_ = offset;
   entries_end_ = offset + size;
diff --git a/libunwindstack/Elf.cpp b/libunwindstack/Elf.cpp
index 345491356..c141b2e00 100644
--- a/libunwindstack/Elf.cpp
+++ b/libunwindstack/Elf.cpp
@@ -53,7 +53,7 @@ bool Elf::Init() {
 
   valid_ = interface_->Init(&load_bias_);
   if (valid_) {
-    interface_->InitHeaders(load_bias_);
+    interface_->InitHeaders();
     InitGnuDebugdata();
   } else {
     interface_.reset(nullptr);
@@ -77,9 +77,9 @@ void Elf::InitGnuDebugdata() {
 
   // Ignore the load_bias from the compressed section, the correct load bias
   // is in the uncompressed data.
-  uint64_t load_bias;
+  int64_t load_bias;
   if (gnu->Init(&load_bias)) {
-    gnu->InitHeaders(load_bias);
+    gnu->InitHeaders();
     interface_->SetGnuDebugdataInterface(gnu);
   } else {
     // Free all of the memory associated with the gnu_debugdata section.
@@ -124,7 +124,7 @@ bool Elf::GetGlobalVariable(const std::string& name, uint64_t* memory_address) {
   }
 
   // Adjust by the load bias.
-  if (*memory_address < load_bias_) {
+  if (load_bias_ > 0 && *memory_address < static_cast<uint64_t>(load_bias_)) {
     return false;
   }
 
@@ -229,7 +229,7 @@ bool Elf::GetInfo(Memory* memory, uint64_t* size) {
 }
 
 bool Elf::IsValidPc(uint64_t pc) {
-  if (!valid_ || pc < load_bias_) {
+  if (!valid_ || (load_bias_ > 0 && pc < static_cast<uint64_t>(load_bias_))) {
     return false;
   }
 
@@ -299,7 +299,7 @@ ElfInterface* Elf::CreateInterfaceFromMemory(Memory* memory) {
   return interface.release();
 }
 
-uint64_t Elf::GetLoadBias(Memory* memory) {
+int64_t Elf::GetLoadBias(Memory* memory) {
   if (!IsValidElf(memory)) {
     return 0;
   }
diff --git a/libunwindstack/ElfInterface.cpp b/libunwindstack/ElfInterface.cpp
index be1f09260..e34273cd5 100644
--- a/libunwindstack/ElfInterface.cpp
+++ b/libunwindstack/ElfInterface.cpp
@@ -124,10 +124,10 @@ Memory* ElfInterface::CreateGnuDebugdataMemory() {
 }
 
 template <typename AddressType>
-void ElfInterface::InitHeadersWithTemplate(uint64_t load_bias) {
+void ElfInterface::InitHeadersWithTemplate() {
   if (eh_frame_hdr_offset_ != 0) {
     eh_frame_.reset(new DwarfEhFrameWithHdr<AddressType>(memory_));
-    if (!eh_frame_->Init(eh_frame_hdr_offset_, eh_frame_hdr_size_, load_bias)) {
+    if (!eh_frame_->Init(eh_frame_hdr_offset_, eh_frame_hdr_size_, eh_frame_hdr_section_bias_)) {
       eh_frame_.reset(nullptr);
     }
   }
@@ -136,21 +136,23 @@ void ElfInterface::InitHeadersWithTemplate(uint64_t load_bias) {
     // If there is an eh_frame section without an eh_frame_hdr section,
     // or using the frame hdr object failed to init.
     eh_frame_.reset(new DwarfEhFrame<AddressType>(memory_));
-    if (!eh_frame_->Init(eh_frame_offset_, eh_frame_size_, load_bias)) {
+    if (!eh_frame_->Init(eh_frame_offset_, eh_frame_size_, eh_frame_section_bias_)) {
       eh_frame_.reset(nullptr);
     }
   }
 
   if (eh_frame_.get() == nullptr) {
     eh_frame_hdr_offset_ = 0;
+    eh_frame_hdr_section_bias_ = 0;
     eh_frame_hdr_size_ = static_cast<uint64_t>(-1);
     eh_frame_offset_ = 0;
+    eh_frame_section_bias_ = 0;
     eh_frame_size_ = static_cast<uint64_t>(-1);
   }
 
   if (debug_frame_offset_ != 0) {
     debug_frame_.reset(new DwarfDebugFrame<AddressType>(memory_));
-    if (!debug_frame_->Init(debug_frame_offset_, debug_frame_size_, load_bias)) {
+    if (!debug_frame_->Init(debug_frame_offset_, debug_frame_size_, debug_frame_section_bias_)) {
       debug_frame_.reset(nullptr);
       debug_frame_offset_ = 0;
       debug_frame_size_ = static_cast<uint64_t>(-1);
@@ -159,7 +161,7 @@ void ElfInterface::InitHeadersWithTemplate(uint64_t load_bias) {
 }
 
 template <typename EhdrType, typename PhdrType, typename ShdrType>
-bool ElfInterface::ReadAllHeaders(uint64_t* load_bias) {
+bool ElfInterface::ReadAllHeaders(int64_t* load_bias) {
   EhdrType ehdr;
   if (!memory_->ReadFully(0, &ehdr, sizeof(ehdr))) {
     last_error_.code = ERROR_MEMORY_INVALID;
@@ -175,7 +177,7 @@ bool ElfInterface::ReadAllHeaders(uint64_t* load_bias) {
 }
 
 template <typename EhdrType, typename PhdrType>
-uint64_t ElfInterface::GetLoadBias(Memory* memory) {
+int64_t ElfInterface::GetLoadBias(Memory* memory) {
   EhdrType ehdr;
   if (!memory->ReadFully(0, &ehdr, sizeof(ehdr))) {
     return false;
@@ -190,17 +192,14 @@ uint64_t ElfInterface::GetLoadBias(Memory* memory) {
 
     // Find the first executable load when looking for the load bias.
     if (phdr.p_type == PT_LOAD && (phdr.p_flags & PF_X)) {
-      if (phdr.p_vaddr > phdr.p_offset) {
-        return phdr.p_vaddr - phdr.p_offset;
-      }
-      break;
+      return static_cast<uint64_t>(phdr.p_vaddr) - phdr.p_offset;
     }
   }
   return 0;
 }
 
 template <typename EhdrType, typename PhdrType>
-void ElfInterface::ReadProgramHeaders(const EhdrType& ehdr, uint64_t* load_bias) {
+void ElfInterface::ReadProgramHeaders(const EhdrType& ehdr, int64_t* load_bias) {
   uint64_t offset = ehdr.e_phoff;
   bool first_exec_load_header = true;
   for (size_t i = 0; i < ehdr.e_phnum; i++, offset += ehdr.e_phentsize) {
@@ -219,8 +218,8 @@ void ElfInterface::ReadProgramHeaders(const EhdrType& ehdr, uint64_t* load_bias)
       pt_loads_[phdr.p_offset] = LoadInfo{phdr.p_offset, phdr.p_vaddr,
                                           static_cast<size_t>(phdr.p_memsz)};
       // Only set the load bias from the first executable load header.
-      if (first_exec_load_header && phdr.p_vaddr > phdr.p_offset) {
-        *load_bias = phdr.p_vaddr - phdr.p_offset;
+      if (first_exec_load_header) {
+        *load_bias = static_cast<uint64_t>(phdr.p_vaddr) - phdr.p_offset;
       }
       first_exec_load_header = false;
       break;
@@ -229,6 +228,7 @@ void ElfInterface::ReadProgramHeaders(const EhdrType& ehdr, uint64_t* load_bias)
     case PT_GNU_EH_FRAME:
       // This is really the pointer to the .eh_frame_hdr section.
       eh_frame_hdr_offset_ = phdr.p_offset;
+      eh_frame_hdr_section_bias_ = static_cast<uint64_t>(phdr.p_paddr) - phdr.p_offset;
       eh_frame_hdr_size_ = phdr.p_memsz;
       break;
 
@@ -343,24 +343,21 @@ void ElfInterface::ReadSectionHeaders(const EhdrType& ehdr) {
       if (shdr.sh_name < sec_size) {
         std::string name;
         if (memory_->ReadString(sec_offset + shdr.sh_name, &name)) {
-          uint64_t* offset_ptr = nullptr;
-          uint64_t* size_ptr = nullptr;
           if (name == ".debug_frame") {
-            offset_ptr = &debug_frame_offset_;
-            size_ptr = &debug_frame_size_;
+            debug_frame_offset_ = shdr.sh_offset;
+            debug_frame_size_ = shdr.sh_size;
+            debug_frame_section_bias_ = static_cast<uint64_t>(shdr.sh_addr) - shdr.sh_offset;
           } else if (name == ".gnu_debugdata") {
-            offset_ptr = &gnu_debugdata_offset_;
-            size_ptr = &gnu_debugdata_size_;
+            gnu_debugdata_offset_ = shdr.sh_offset;
+            gnu_debugdata_size_ = shdr.sh_size;
           } else if (name == ".eh_frame") {
-            offset_ptr = &eh_frame_offset_;
-            size_ptr = &eh_frame_size_;
+            eh_frame_offset_ = shdr.sh_offset;
+            eh_frame_section_bias_ = static_cast<uint64_t>(shdr.sh_addr) - shdr.sh_offset;
+            eh_frame_size_ = shdr.sh_size;
           } else if (eh_frame_hdr_offset_ == 0 && name == ".eh_frame_hdr") {
-            offset_ptr = &eh_frame_hdr_offset_;
-            size_ptr = &eh_frame_hdr_size_;
-          }
-          if (offset_ptr != nullptr) {
-            *offset_ptr = shdr.sh_offset;
-            *size_ptr = shdr.sh_size;
+            eh_frame_hdr_offset_ = shdr.sh_offset;
+            eh_frame_hdr_section_bias_ = static_cast<uint64_t>(shdr.sh_addr) - shdr.sh_offset;
+            eh_frame_hdr_size_ = shdr.sh_size;
           }
         }
       }
@@ -642,16 +639,14 @@ std::string ElfInterface::ReadBuildIDFromMemory(Memory* memory) {
 }
 
 // Instantiate all of the needed template functions.
-template void ElfInterface::InitHeadersWithTemplate<uint32_t>(uint64_t);
-template void ElfInterface::InitHeadersWithTemplate<uint64_t>(uint64_t);
+template void ElfInterface::InitHeadersWithTemplate<uint32_t>();
+template void ElfInterface::InitHeadersWithTemplate<uint64_t>();
 
-template bool ElfInterface::ReadAllHeaders<Elf32_Ehdr, Elf32_Phdr, Elf32_Shdr>(uint64_t*);
-template bool ElfInterface::ReadAllHeaders<Elf64_Ehdr, Elf64_Phdr, Elf64_Shdr>(uint64_t*);
+template bool ElfInterface::ReadAllHeaders<Elf32_Ehdr, Elf32_Phdr, Elf32_Shdr>(int64_t*);
+template bool ElfInterface::ReadAllHeaders<Elf64_Ehdr, Elf64_Phdr, Elf64_Shdr>(int64_t*);
 
-template void ElfInterface::ReadProgramHeaders<Elf32_Ehdr, Elf32_Phdr>(const Elf32_Ehdr&,
-                                                                       uint64_t*);
-template void ElfInterface::ReadProgramHeaders<Elf64_Ehdr, Elf64_Phdr>(const Elf64_Ehdr&,
-                                                                       uint64_t*);
+template void ElfInterface::ReadProgramHeaders<Elf32_Ehdr, Elf32_Phdr>(const Elf32_Ehdr&, int64_t*);
+template void ElfInterface::ReadProgramHeaders<Elf64_Ehdr, Elf64_Phdr>(const Elf64_Ehdr&, int64_t*);
 
 template void ElfInterface::ReadSectionHeaders<Elf32_Ehdr, Elf32_Shdr>(const Elf32_Ehdr&);
 template void ElfInterface::ReadSectionHeaders<Elf64_Ehdr, Elf64_Shdr>(const Elf64_Ehdr&);
@@ -673,8 +668,8 @@ template bool ElfInterface::GetGlobalVariableWithTemplate<Elf64_Sym>(const std::
 template void ElfInterface::GetMaxSizeWithTemplate<Elf32_Ehdr>(Memory*, uint64_t*);
 template void ElfInterface::GetMaxSizeWithTemplate<Elf64_Ehdr>(Memory*, uint64_t*);
 
-template uint64_t ElfInterface::GetLoadBias<Elf32_Ehdr, Elf32_Phdr>(Memory*);
-template uint64_t ElfInterface::GetLoadBias<Elf64_Ehdr, Elf64_Phdr>(Memory*);
+template int64_t ElfInterface::GetLoadBias<Elf32_Ehdr, Elf32_Phdr>(Memory*);
+template int64_t ElfInterface::GetLoadBias<Elf64_Ehdr, Elf64_Phdr>(Memory*);
 
 template std::string ElfInterface::ReadBuildIDFromMemory<Elf32_Ehdr, Elf32_Shdr, Elf32_Nhdr>(
     Memory*);
diff --git a/libunwindstack/ElfInterfaceArm.cpp b/libunwindstack/ElfInterfaceArm.cpp
index 3dd5d54fe..76f2dc882 100644
--- a/libunwindstack/ElfInterfaceArm.cpp
+++ b/libunwindstack/ElfInterfaceArm.cpp
@@ -26,7 +26,7 @@
 
 namespace unwindstack {
 
-bool ElfInterfaceArm::Init(uint64_t* load_bias) {
+bool ElfInterfaceArm::Init(int64_t* load_bias) {
   if (!ElfInterface32::Init(load_bias)) {
     return false;
   }
diff --git a/libunwindstack/ElfInterfaceArm.h b/libunwindstack/ElfInterfaceArm.h
index 4c3a0c347..1d71cacd1 100644
--- a/libunwindstack/ElfInterfaceArm.h
+++ b/libunwindstack/ElfInterfaceArm.h
@@ -64,7 +64,7 @@ class ElfInterfaceArm : public ElfInterface32 {
   iterator begin() { return iterator(this, 0); }
   iterator end() { return iterator(this, total_entries_); }
 
-  bool Init(uint64_t* load_bias) override;
+  bool Init(int64_t* section_bias) override;
 
   bool GetPrel31Addr(uint32_t offset, uint32_t* addr);
 
diff --git a/libunwindstack/MapInfo.cpp b/libunwindstack/MapInfo.cpp
index 5b30a4d7b..f2dad843b 100644
--- a/libunwindstack/MapInfo.cpp
+++ b/libunwindstack/MapInfo.cpp
@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+#include <stdint.h>
 #include <sys/mman.h>
 #include <sys/types.h>
 #include <unistd.h>
@@ -263,8 +264,8 @@ bool MapInfo::GetFunctionName(uint64_t addr, std::string* name, uint64_t* func_o
 }
 
 uint64_t MapInfo::GetLoadBias(const std::shared_ptr<Memory>& process_memory) {
-  uint64_t cur_load_bias = load_bias.load();
-  if (cur_load_bias != static_cast<uint64_t>(-1)) {
+  int64_t cur_load_bias = load_bias.load();
+  if (cur_load_bias != INT64_MAX) {
     return cur_load_bias;
   }
 
diff --git a/libunwindstack/include/unwindstack/DwarfMemory.h b/libunwindstack/include/unwindstack/DwarfMemory.h
index 8dd8d2bb1..c45699a9e 100644
--- a/libunwindstack/include/unwindstack/DwarfMemory.h
+++ b/libunwindstack/include/unwindstack/DwarfMemory.h
@@ -49,8 +49,8 @@ class DwarfMemory {
   uint64_t cur_offset() { return cur_offset_; }
   void set_cur_offset(uint64_t cur_offset) { cur_offset_ = cur_offset; }
 
-  void set_pc_offset(uint64_t offset) { pc_offset_ = offset; }
-  void clear_pc_offset() { pc_offset_ = static_cast<uint64_t>(-1); }
+  void set_pc_offset(int64_t offset) { pc_offset_ = offset; }
+  void clear_pc_offset() { pc_offset_ = INT64_MAX; }
 
   void set_data_offset(uint64_t offset) { data_offset_ = offset; }
   void clear_data_offset() { data_offset_ = static_cast<uint64_t>(-1); }
@@ -65,7 +65,7 @@ class DwarfMemory {
   Memory* memory_;
   uint64_t cur_offset_ = 0;
 
-  uint64_t pc_offset_ = static_cast<uint64_t>(-1);
+  int64_t pc_offset_ = INT64_MAX;
   uint64_t data_offset_ = static_cast<uint64_t>(-1);
   uint64_t func_offset_ = static_cast<uint64_t>(-1);
   uint64_t text_offset_ = static_cast<uint64_t>(-1);
diff --git a/libunwindstack/include/unwindstack/DwarfSection.h b/libunwindstack/include/unwindstack/DwarfSection.h
index e9942decd..0b3f6d478 100644
--- a/libunwindstack/include/unwindstack/DwarfSection.h
+++ b/libunwindstack/include/unwindstack/DwarfSection.h
@@ -86,7 +86,7 @@ class DwarfSection {
   DwarfErrorCode LastErrorCode() { return last_error_.code; }
   uint64_t LastErrorAddress() { return last_error_.address; }
 
-  virtual bool Init(uint64_t offset, uint64_t size, uint64_t load_bias) = 0;
+  virtual bool Init(uint64_t offset, uint64_t size, int64_t section_bias) = 0;
 
   virtual bool Eval(const DwarfCie*, Memory*, const dwarf_loc_regs_t&, Regs*, bool*) = 0;
 
@@ -150,7 +150,7 @@ class DwarfSectionImpl : public DwarfSection {
   bool EvalExpression(const DwarfLocation& loc, Memory* regular_memory, AddressType* value,
                       RegsInfo<AddressType>* regs_info, bool* is_dex_pc);
 
-  uint64_t load_bias_ = 0;
+  int64_t section_bias_ = 0;
   uint64_t entries_offset_ = 0;
   uint64_t entries_end_ = 0;
   uint64_t pc_offset_ = 0;
@@ -166,7 +166,7 @@ class DwarfSectionImplNoHdr : public DwarfSectionImpl<AddressType> {
   using DwarfSectionImpl<AddressType>::entries_offset_;
   using DwarfSectionImpl<AddressType>::entries_end_;
   using DwarfSectionImpl<AddressType>::last_error_;
-  using DwarfSectionImpl<AddressType>::load_bias_;
+  using DwarfSectionImpl<AddressType>::section_bias_;
   using DwarfSectionImpl<AddressType>::cie_entries_;
   using DwarfSectionImpl<AddressType>::fde_entries_;
   using DwarfSectionImpl<AddressType>::cie32_value_;
@@ -175,7 +175,7 @@ class DwarfSectionImplNoHdr : public DwarfSectionImpl<AddressType> {
   DwarfSectionImplNoHdr(Memory* memory) : DwarfSectionImpl<AddressType>(memory) {}
   virtual ~DwarfSectionImplNoHdr() = default;
 
-  bool Init(uint64_t offset, uint64_t size, uint64_t load_bias) override;
+  bool Init(uint64_t offset, uint64_t size, int64_t section_bias) override;
 
   const DwarfFde* GetFdeFromPc(uint64_t pc) override;
 
diff --git a/libunwindstack/include/unwindstack/Elf.h b/libunwindstack/include/unwindstack/Elf.h
index 56bf318c8..fc3f2a610 100644
--- a/libunwindstack/include/unwindstack/Elf.h
+++ b/libunwindstack/include/unwindstack/Elf.h
@@ -75,7 +75,7 @@ class Elf {
 
   std::string GetBuildID();
 
-  uint64_t GetLoadBias() { return load_bias_; }
+  int64_t GetLoadBias() { return load_bias_; }
 
   bool IsValidPc(uint64_t pc);
 
@@ -101,7 +101,7 @@ class Elf {
 
   static bool GetInfo(Memory* memory, uint64_t* size);
 
-  static uint64_t GetLoadBias(Memory* memory);
+  static int64_t GetLoadBias(Memory* memory);
 
   static std::string GetBuildID(Memory* memory);
 
@@ -116,7 +116,7 @@ class Elf {
 
  protected:
   bool valid_ = false;
-  uint64_t load_bias_ = 0;
+  int64_t load_bias_ = 0;
   std::unique_ptr<ElfInterface> interface_;
   std::unique_ptr<Memory> memory_;
   uint32_t machine_type_;
diff --git a/libunwindstack/include/unwindstack/ElfInterface.h b/libunwindstack/include/unwindstack/ElfInterface.h
index dbd917d67..ae9bd9a61 100644
--- a/libunwindstack/include/unwindstack/ElfInterface.h
+++ b/libunwindstack/include/unwindstack/ElfInterface.h
@@ -52,9 +52,9 @@ class ElfInterface {
   ElfInterface(Memory* memory) : memory_(memory) {}
   virtual ~ElfInterface();
 
-  virtual bool Init(uint64_t* load_bias) = 0;
+  virtual bool Init(int64_t* load_bias) = 0;
 
-  virtual void InitHeaders(uint64_t load_bias) = 0;
+  virtual void InitHeaders() = 0;
 
   virtual std::string GetSoname() = 0;
 
@@ -80,10 +80,13 @@ class ElfInterface {
   uint64_t dynamic_vaddr() { return dynamic_vaddr_; }
   uint64_t dynamic_size() { return dynamic_size_; }
   uint64_t eh_frame_hdr_offset() { return eh_frame_hdr_offset_; }
+  int64_t eh_frame_hdr_section_bias() { return eh_frame_hdr_section_bias_; }
   uint64_t eh_frame_hdr_size() { return eh_frame_hdr_size_; }
   uint64_t eh_frame_offset() { return eh_frame_offset_; }
+  int64_t eh_frame_section_bias() { return eh_frame_section_bias_; }
   uint64_t eh_frame_size() { return eh_frame_size_; }
   uint64_t debug_frame_offset() { return debug_frame_offset_; }
+  int64_t debug_frame_section_bias() { return debug_frame_section_bias_; }
   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_; }
@@ -98,20 +101,20 @@ class ElfInterface {
   uint64_t LastErrorAddress() { return last_error_.address; }
 
   template <typename EhdrType, typename PhdrType>
-  static uint64_t GetLoadBias(Memory* memory);
+  static int64_t GetLoadBias(Memory* memory);
 
   template <typename EhdrType, typename ShdrType, typename NhdrType>
   static std::string ReadBuildIDFromMemory(Memory* memory);
 
  protected:
   template <typename AddressType>
-  void InitHeadersWithTemplate(uint64_t load_bias);
+  void InitHeadersWithTemplate();
 
   template <typename EhdrType, typename PhdrType, typename ShdrType>
-  bool ReadAllHeaders(uint64_t* load_bias);
+  bool ReadAllHeaders(int64_t* load_bias);
 
   template <typename EhdrType, typename PhdrType>
-  void ReadProgramHeaders(const EhdrType& ehdr, uint64_t* load_bias);
+  void ReadProgramHeaders(const EhdrType& ehdr, int64_t* load_bias);
 
   template <typename EhdrType, typename ShdrType>
   void ReadSectionHeaders(const EhdrType& ehdr);
@@ -142,12 +145,15 @@ class ElfInterface {
   uint64_t dynamic_size_ = 0;
 
   uint64_t eh_frame_hdr_offset_ = 0;
+  int64_t eh_frame_hdr_section_bias_ = 0;
   uint64_t eh_frame_hdr_size_ = 0;
 
   uint64_t eh_frame_offset_ = 0;
+  int64_t eh_frame_section_bias_ = 0;
   uint64_t eh_frame_size_ = 0;
 
   uint64_t debug_frame_offset_ = 0;
+  int64_t debug_frame_section_bias_ = 0;
   uint64_t debug_frame_size_ = 0;
 
   uint64_t gnu_debugdata_offset_ = 0;
@@ -175,13 +181,11 @@ class ElfInterface32 : public ElfInterface {
   ElfInterface32(Memory* memory) : ElfInterface(memory) {}
   virtual ~ElfInterface32() = default;
 
-  bool Init(uint64_t* load_bias) override {
+  bool Init(int64_t* load_bias) override {
     return ElfInterface::ReadAllHeaders<Elf32_Ehdr, Elf32_Phdr, Elf32_Shdr>(load_bias);
   }
 
-  void InitHeaders(uint64_t load_bias) override {
-    ElfInterface::InitHeadersWithTemplate<uint32_t>(load_bias);
-  }
+  void InitHeaders() override { ElfInterface::InitHeadersWithTemplate<uint32_t>(); }
 
   std::string GetSoname() override { return ElfInterface::GetSonameWithTemplate<Elf32_Dyn>(); }
 
@@ -205,13 +209,11 @@ class ElfInterface64 : public ElfInterface {
   ElfInterface64(Memory* memory) : ElfInterface(memory) {}
   virtual ~ElfInterface64() = default;
 
-  bool Init(uint64_t* load_bias) override {
+  bool Init(int64_t* load_bias) override {
     return ElfInterface::ReadAllHeaders<Elf64_Ehdr, Elf64_Phdr, Elf64_Shdr>(load_bias);
   }
 
-  void InitHeaders(uint64_t load_bias) override {
-    ElfInterface::InitHeadersWithTemplate<uint64_t>(load_bias);
-  }
+  void InitHeaders() override { ElfInterface::InitHeadersWithTemplate<uint64_t>(); }
 
   std::string GetSoname() override { return ElfInterface::GetSonameWithTemplate<Elf64_Dyn>(); }
 
diff --git a/libunwindstack/include/unwindstack/MapInfo.h b/libunwindstack/include/unwindstack/MapInfo.h
index 6c5cfc484..8f0c5160b 100644
--- a/libunwindstack/include/unwindstack/MapInfo.h
+++ b/libunwindstack/include/unwindstack/MapInfo.h
@@ -39,7 +39,7 @@ struct MapInfo {
         flags(flags),
         name(name),
         prev_map(map_info),
-        load_bias(static_cast<uint64_t>(-1)),
+        load_bias(INT64_MAX),
         build_id(0) {}
   MapInfo(MapInfo* map_info, uint64_t start, uint64_t end, uint64_t offset, uint64_t flags,
           const std::string& name)
@@ -49,7 +49,7 @@ struct MapInfo {
         flags(flags),
         name(name),
         prev_map(map_info),
-        load_bias(static_cast<uint64_t>(-1)),
+        load_bias(INT64_MAX),
         build_id(0) {}
   ~MapInfo();
 
@@ -72,7 +72,7 @@ struct MapInfo {
 
   MapInfo* prev_map = nullptr;
 
-  std::atomic_uint64_t load_bias;
+  std::atomic_int64_t load_bias;
 
   // This is a pointer to a new'd std::string.
   // Using an atomic value means that we don't need to lock and will
diff --git a/libunwindstack/tests/DwarfSectionImplTest.cpp b/libunwindstack/tests/DwarfSectionImplTest.cpp
index b386ef495..a9d6dadda 100644
--- a/libunwindstack/tests/DwarfSectionImplTest.cpp
+++ b/libunwindstack/tests/DwarfSectionImplTest.cpp
@@ -35,7 +35,7 @@ class TestDwarfSectionImpl : public DwarfSectionImpl<TypeParam> {
   TestDwarfSectionImpl(Memory* memory) : DwarfSectionImpl<TypeParam>(memory) {}
   virtual ~TestDwarfSectionImpl() = default;
 
-  bool Init(uint64_t, uint64_t, uint64_t) override { return false; }
+  bool Init(uint64_t, uint64_t, int64_t) override { return false; }
 
   void GetFdes(std::vector<const DwarfFde*>*) override {}
 
diff --git a/libunwindstack/tests/DwarfSectionTest.cpp b/libunwindstack/tests/DwarfSectionTest.cpp
index d754fcc50..6df2baecb 100644
--- a/libunwindstack/tests/DwarfSectionTest.cpp
+++ b/libunwindstack/tests/DwarfSectionTest.cpp
@@ -30,7 +30,7 @@ class MockDwarfSection : public DwarfSection {
   MockDwarfSection(Memory* memory) : DwarfSection(memory) {}
   virtual ~MockDwarfSection() = default;
 
-  MOCK_METHOD3(Init, bool(uint64_t, uint64_t, uint64_t));
+  MOCK_METHOD3(Init, bool(uint64_t, uint64_t, int64_t));
 
   MOCK_METHOD5(Eval, bool(const DwarfCie*, Memory*, const dwarf_loc_regs_t&, Regs*, bool*));
 
diff --git a/libunwindstack/tests/ElfFake.h b/libunwindstack/tests/ElfFake.h
index bd3083ce4..832e64ab1 100644
--- a/libunwindstack/tests/ElfFake.h
+++ b/libunwindstack/tests/ElfFake.h
@@ -66,8 +66,8 @@ class ElfInterfaceFake : public ElfInterface {
   ElfInterfaceFake(Memory* memory) : ElfInterface(memory) {}
   virtual ~ElfInterfaceFake() = default;
 
-  bool Init(uint64_t*) override { return false; }
-  void InitHeaders(uint64_t) override {}
+  bool Init(int64_t*) override { return false; }
+  void InitHeaders() override {}
   std::string GetSoname() override { return fake_soname_; }
 
   bool GetFunctionName(uint64_t, std::string*, uint64_t*) override;
diff --git a/libunwindstack/tests/ElfInterfaceTest.cpp b/libunwindstack/tests/ElfInterfaceTest.cpp
index 5b2036bdb..b048b178f 100644
--- a/libunwindstack/tests/ElfInterfaceTest.cpp
+++ b/libunwindstack/tests/ElfInterfaceTest.cpp
@@ -112,6 +112,21 @@ class ElfInterfaceTest : public ::testing::Test {
   template <typename Ehdr, typename Shdr, typename ElfInterfaceType>
   void InitSectionHeadersOffsets();
 
+  template <typename Ehdr, typename Shdr, typename ElfInterfaceType>
+  void InitSectionHeadersOffsetsEhFrameSectionBias(uint64_t addr, uint64_t offset,
+                                                   int64_t expected_bias);
+
+  template <typename Ehdr, typename Shdr, typename ElfInterfaceType>
+  void InitSectionHeadersOffsetsEhFrameHdrSectionBias(uint64_t addr, uint64_t offset,
+                                                      int64_t expected_bias);
+
+  template <typename Ehdr, typename Shdr, typename ElfInterfaceType>
+  void InitSectionHeadersOffsetsDebugFrameSectionBias(uint64_t addr, uint64_t offset,
+                                                      int64_t expected_bias);
+
+  template <typename Ehdr, typename Phdr, typename ElfInterfaceType>
+  void CheckGnuEhFrame(uint64_t addr, uint64_t offset, int64_t expected_bias);
+
   template <typename Sym>
   void InitSym(uint64_t offset, uint32_t value, uint32_t size, uint32_t name_offset,
                uint64_t sym_offset, const char* name);
@@ -132,10 +147,10 @@ class ElfInterfaceTest : public ::testing::Test {
   void BuildIDSectionTooSmallForHeader();
 
   template <typename Ehdr, typename Phdr, typename ElfInterfaceType>
-  void CheckLoadBiasInFirstPhdr(uint64_t load_bias);
+  void CheckLoadBiasInFirstPhdr(int64_t load_bias);
 
   template <typename Ehdr, typename Phdr, typename ElfInterfaceType>
-  void CheckLoadBiasInFirstExecPhdr(uint64_t offset, uint64_t vaddr, uint64_t load_bias);
+  void CheckLoadBiasInFirstExecPhdr(uint64_t offset, uint64_t vaddr, int64_t load_bias);
 
   MemoryFake memory_;
 };
@@ -172,9 +187,9 @@ void ElfInterfaceTest::SinglePtLoad() {
   phdr.p_align = 0x1000;
   memory_.SetMemory(0x100, &phdr, sizeof(phdr));
 
-  uint64_t load_bias = 0;
+  int64_t load_bias = 0;
   ASSERT_TRUE(elf->Init(&load_bias));
-  EXPECT_EQ(0x2000U, load_bias);
+  EXPECT_EQ(0x2000, load_bias);
 
   const std::unordered_map<uint64_t, LoadInfo>& pt_loads = elf->pt_loads();
   ASSERT_EQ(1U, pt_loads.size());
@@ -184,11 +199,11 @@ void ElfInterfaceTest::SinglePtLoad() {
   ASSERT_EQ(0x10000U, load_data.table_size);
 }
 
-TEST_F(ElfInterfaceTest, elf32_single_pt_load) {
+TEST_F(ElfInterfaceTest, single_pt_load_32) {
   SinglePtLoad<Elf32_Ehdr, Elf32_Phdr, Elf32_Dyn, ElfInterface32>();
 }
 
-TEST_F(ElfInterfaceTest, elf64_single_pt_load) {
+TEST_F(ElfInterfaceTest, single_pt_load_64) {
   SinglePtLoad<Elf64_Ehdr, Elf64_Phdr, Elf64_Dyn, ElfInterface64>();
 }
 
@@ -228,9 +243,9 @@ void ElfInterfaceTest::MultipleExecutablePtLoads() {
   phdr.p_align = 0x1002;
   memory_.SetMemory(0x100 + 2 * sizeof(phdr), &phdr, sizeof(phdr));
 
-  uint64_t load_bias = 0;
+  int64_t load_bias = 0;
   ASSERT_TRUE(elf->Init(&load_bias));
-  EXPECT_EQ(0x2000U, load_bias);
+  EXPECT_EQ(0x2000, load_bias);
 
   const std::unordered_map<uint64_t, LoadInfo>& pt_loads = elf->pt_loads();
   ASSERT_EQ(3U, pt_loads.size());
@@ -251,11 +266,11 @@ void ElfInterfaceTest::MultipleExecutablePtLoads() {
   ASSERT_EQ(0x10002U, load_data.table_size);
 }
 
-TEST_F(ElfInterfaceTest, elf32_multiple_executable_pt_loads) {
+TEST_F(ElfInterfaceTest, multiple_executable_pt_loads_32) {
   MultipleExecutablePtLoads<Elf32_Ehdr, Elf32_Phdr, Elf32_Dyn, ElfInterface32>();
 }
 
-TEST_F(ElfInterfaceTest, elf64_multiple_executable_pt_loads) {
+TEST_F(ElfInterfaceTest, multiple_executable_pt_loads_64) {
   MultipleExecutablePtLoads<Elf64_Ehdr, Elf64_Phdr, Elf64_Dyn, ElfInterface64>();
 }
 
@@ -295,9 +310,9 @@ void ElfInterfaceTest::MultipleExecutablePtLoadsIncrementsNotSizeOfPhdr() {
   phdr.p_align = 0x1002;
   memory_.SetMemory(0x100 + 2 * (sizeof(phdr) + 100), &phdr, sizeof(phdr));
 
-  uint64_t load_bias = 0;
+  int64_t load_bias = 0;
   ASSERT_TRUE(elf->Init(&load_bias));
-  EXPECT_EQ(0x2000U, load_bias);
+  EXPECT_EQ(0x2000, load_bias);
 
   const std::unordered_map<uint64_t, LoadInfo>& pt_loads = elf->pt_loads();
   ASSERT_EQ(3U, pt_loads.size());
@@ -318,12 +333,12 @@ void ElfInterfaceTest::MultipleExecutablePtLoadsIncrementsNotSizeOfPhdr() {
   ASSERT_EQ(0x10002U, load_data.table_size);
 }
 
-TEST_F(ElfInterfaceTest, elf32_multiple_executable_pt_loads_increments_not_size_of_phdr) {
+TEST_F(ElfInterfaceTest, multiple_executable_pt_loads_increments_not_size_of_phdr_32) {
   MultipleExecutablePtLoadsIncrementsNotSizeOfPhdr<Elf32_Ehdr, Elf32_Phdr, Elf32_Dyn,
                                                    ElfInterface32>();
 }
 
-TEST_F(ElfInterfaceTest, elf64_multiple_executable_pt_loads_increments_not_size_of_phdr) {
+TEST_F(ElfInterfaceTest, multiple_executable_pt_loads_increments_not_size_of_phdr_64) {
   MultipleExecutablePtLoadsIncrementsNotSizeOfPhdr<Elf64_Ehdr, Elf64_Phdr, Elf64_Dyn,
                                                    ElfInterface64>();
 }
@@ -364,9 +379,9 @@ void ElfInterfaceTest::NonExecutablePtLoads() {
   phdr.p_align = 0x1002;
   memory_.SetMemory(0x100 + 2 * sizeof(phdr), &phdr, sizeof(phdr));
 
-  uint64_t load_bias = 0;
+  int64_t load_bias = 0;
   ASSERT_TRUE(elf->Init(&load_bias));
-  EXPECT_EQ(0x1001U, load_bias);
+  EXPECT_EQ(0x1001, load_bias);
 
   const std::unordered_map<uint64_t, LoadInfo>& pt_loads = elf->pt_loads();
   ASSERT_EQ(1U, pt_loads.size());
@@ -377,11 +392,11 @@ void ElfInterfaceTest::NonExecutablePtLoads() {
   ASSERT_EQ(0x10001U, load_data.table_size);
 }
 
-TEST_F(ElfInterfaceTest, elf32_non_executable_pt_loads) {
+TEST_F(ElfInterfaceTest, non_executable_pt_loads_32) {
   NonExecutablePtLoads<Elf32_Ehdr, Elf32_Phdr, Elf32_Dyn, ElfInterface32>();
 }
 
-TEST_F(ElfInterfaceTest, elf64_non_executable_pt_loads) {
+TEST_F(ElfInterfaceTest, non_executable_pt_loads_64) {
   NonExecutablePtLoads<Elf64_Ehdr, Elf64_Phdr, Elf64_Dyn, ElfInterface64>();
 }
 
@@ -434,11 +449,10 @@ void ElfInterfaceTest::ManyPhdrs() {
   memset(&phdr, 0, sizeof(phdr));
   phdr.p_type = PT_GNU_EH_FRAME;
   memory_.SetMemory(phdr_offset, &phdr, sizeof(phdr));
-  phdr_offset += sizeof(phdr);
 
-  uint64_t load_bias = 0;
+  int64_t load_bias = 0;
   ASSERT_TRUE(elf->Init(&load_bias));
-  EXPECT_EQ(0x2000U, load_bias);
+  EXPECT_EQ(0x2000, load_bias);
 
   const std::unordered_map<uint64_t, LoadInfo>& pt_loads = elf->pt_loads();
   ASSERT_EQ(1U, pt_loads.size());
@@ -449,15 +463,15 @@ void ElfInterfaceTest::ManyPhdrs() {
   ASSERT_EQ(0x10000U, load_data.table_size);
 }
 
-TEST_F(ElfInterfaceTest, elf32_many_phdrs) {
+TEST_F(ElfInterfaceTest, many_phdrs_32) {
   ElfInterfaceTest::ManyPhdrs<Elf32_Ehdr, Elf32_Phdr, Elf32_Dyn, ElfInterface32>();
 }
 
-TEST_F(ElfInterfaceTest, elf64_many_phdrs) {
+TEST_F(ElfInterfaceTest, many_phdrs_64) {
   ElfInterfaceTest::ManyPhdrs<Elf64_Ehdr, Elf64_Phdr, Elf64_Dyn, ElfInterface64>();
 }
 
-TEST_F(ElfInterfaceTest, elf32_arm) {
+TEST_F(ElfInterfaceTest, arm32) {
   ElfInterfaceArm elf_arm(&memory_);
 
   Elf32_Ehdr ehdr = {};
@@ -476,9 +490,9 @@ TEST_F(ElfInterfaceTest, elf32_arm) {
   memory_.SetData32(0x2000, 0x1000);
   memory_.SetData32(0x2008, 0x1000);
 
-  uint64_t load_bias = 0;
+  int64_t load_bias = 0;
   ASSERT_TRUE(elf_arm.Init(&load_bias));
-  EXPECT_EQ(0U, load_bias);
+  EXPECT_EQ(0, load_bias);
 
   std::vector<uint32_t> entries;
   for (auto addr : elf_arm) {
@@ -557,19 +571,19 @@ template <typename ElfInterfaceType>
 void ElfInterfaceTest::Soname() {
   std::unique_ptr<ElfInterface> elf(new ElfInterfaceType(&memory_));
 
-  uint64_t load_bias = 0;
+  int64_t load_bias = 0;
   ASSERT_TRUE(elf->Init(&load_bias));
-  EXPECT_EQ(0U, load_bias);
+  EXPECT_EQ(0, load_bias);
 
   ASSERT_EQ("fake_soname.so", elf->GetSoname());
 }
 
-TEST_F(ElfInterfaceTest, elf32_soname) {
+TEST_F(ElfInterfaceTest, soname_32) {
   SonameInit<Elf32_Ehdr, Elf32_Phdr, Elf32_Shdr, Elf32_Dyn>();
   Soname<ElfInterface32>();
 }
 
-TEST_F(ElfInterfaceTest, elf64_soname) {
+TEST_F(ElfInterfaceTest, soname_64) {
   SonameInit<Elf64_Ehdr, Elf64_Phdr, Elf64_Shdr, Elf64_Dyn>();
   Soname<ElfInterface64>();
 }
@@ -578,19 +592,19 @@ template <typename ElfInterfaceType>
 void ElfInterfaceTest::SonameAfterDtNull() {
   std::unique_ptr<ElfInterface> elf(new ElfInterfaceType(&memory_));
 
-  uint64_t load_bias = 0;
+  int64_t load_bias = 0;
   ASSERT_TRUE(elf->Init(&load_bias));
-  EXPECT_EQ(0U, load_bias);
+  EXPECT_EQ(0, load_bias);
 
   ASSERT_EQ("", elf->GetSoname());
 }
 
-TEST_F(ElfInterfaceTest, elf32_soname_after_dt_null) {
+TEST_F(ElfInterfaceTest, soname_after_dt_null_32) {
   SonameInit<Elf32_Ehdr, Elf32_Phdr, Elf32_Shdr, Elf32_Dyn>(SONAME_DTNULL_AFTER);
   SonameAfterDtNull<ElfInterface32>();
 }
 
-TEST_F(ElfInterfaceTest, elf64_soname_after_dt_null) {
+TEST_F(ElfInterfaceTest, soname_after_dt_null_64) {
   SonameInit<Elf64_Ehdr, Elf64_Phdr, Elf64_Shdr, Elf64_Dyn>(SONAME_DTNULL_AFTER);
   SonameAfterDtNull<ElfInterface64>();
 }
@@ -599,19 +613,19 @@ template <typename ElfInterfaceType>
 void ElfInterfaceTest::SonameSize() {
   std::unique_ptr<ElfInterface> elf(new ElfInterfaceType(&memory_));
 
-  uint64_t load_bias = 0;
+  int64_t load_bias = 0;
   ASSERT_TRUE(elf->Init(&load_bias));
-  EXPECT_EQ(0U, load_bias);
+  EXPECT_EQ(0, load_bias);
 
   ASSERT_EQ("", elf->GetSoname());
 }
 
-TEST_F(ElfInterfaceTest, elf32_soname_size) {
+TEST_F(ElfInterfaceTest, soname_size_32) {
   SonameInit<Elf32_Ehdr, Elf32_Phdr, Elf32_Shdr, Elf32_Dyn>(SONAME_DTSIZE_SMALL);
   SonameSize<ElfInterface32>();
 }
 
-TEST_F(ElfInterfaceTest, elf64_soname_size) {
+TEST_F(ElfInterfaceTest, soname_size_64) {
   SonameInit<Elf64_Ehdr, Elf64_Phdr, Elf64_Shdr, Elf64_Dyn>(SONAME_DTSIZE_SMALL);
   SonameSize<ElfInterface64>();
 }
@@ -622,19 +636,19 @@ template <typename ElfInterfaceType>
 void ElfInterfaceTest::SonameMissingMap() {
   std::unique_ptr<ElfInterface> elf(new ElfInterfaceType(&memory_));
 
-  uint64_t load_bias = 0;
+  int64_t load_bias = 0;
   ASSERT_TRUE(elf->Init(&load_bias));
-  EXPECT_EQ(0U, load_bias);
+  EXPECT_EQ(0, load_bias);
 
   ASSERT_EQ("", elf->GetSoname());
 }
 
-TEST_F(ElfInterfaceTest, elf32_soname_missing_map) {
+TEST_F(ElfInterfaceTest, soname_missing_map_32) {
   SonameInit<Elf32_Ehdr, Elf32_Phdr, Elf32_Shdr, Elf32_Dyn>(SONAME_MISSING_MAP);
   SonameMissingMap<ElfInterface32>();
 }
 
-TEST_F(ElfInterfaceTest, elf64_soname_missing_map) {
+TEST_F(ElfInterfaceTest, soname_missing_map_64) {
   SonameInit<Elf64_Ehdr, Elf64_Phdr, Elf64_Shdr, Elf64_Dyn>(SONAME_MISSING_MAP);
   SonameMissingMap<ElfInterface64>();
 }
@@ -653,17 +667,17 @@ void ElfInterfaceTest::InitHeadersEhFrameTest() {
   memory_.SetData32(0x10004, 0x500);
   memory_.SetData32(0x10008, 250);
 
-  elf.InitHeaders(0);
+  elf.InitHeaders();
 
   EXPECT_FALSE(elf.eh_frame() == nullptr);
   EXPECT_TRUE(elf.debug_frame() == nullptr);
 }
 
-TEST_F(ElfInterfaceTest, init_headers_eh_frame32) {
+TEST_F(ElfInterfaceTest, init_headers_eh_frame_32) {
   InitHeadersEhFrameTest<ElfInterface32Fake>();
 }
 
-TEST_F(ElfInterfaceTest, init_headers_eh_frame64) {
+TEST_F(ElfInterfaceTest, init_headers_eh_frame_64) {
   InitHeadersEhFrameTest<ElfInterface64Fake>();
 }
 
@@ -685,17 +699,17 @@ void ElfInterfaceTest::InitHeadersDebugFrame() {
   memory_.SetData32(0x5108, 0x1500);
   memory_.SetData32(0x510c, 0x200);
 
-  elf.InitHeaders(0);
+  elf.InitHeaders();
 
   EXPECT_TRUE(elf.eh_frame() == nullptr);
   EXPECT_FALSE(elf.debug_frame() == nullptr);
 }
 
-TEST_F(ElfInterfaceTest, init_headers_debug_frame32) {
+TEST_F(ElfInterfaceTest, init_headers_debug_frame_32) {
   InitHeadersDebugFrame<ElfInterface32Fake>();
 }
 
-TEST_F(ElfInterfaceTest, init_headers_debug_frame64) {
+TEST_F(ElfInterfaceTest, init_headers_debug_frame_64) {
   InitHeadersDebugFrame<ElfInterface64Fake>();
 }
 
@@ -709,16 +723,16 @@ void ElfInterfaceTest::InitProgramHeadersMalformed() {
   ehdr.e_phentsize = sizeof(Phdr);
   memory_.SetMemory(0, &ehdr, sizeof(ehdr));
 
-  uint64_t load_bias = 0;
+  int64_t load_bias = 0;
   ASSERT_TRUE(elf->Init(&load_bias));
-  EXPECT_EQ(0U, load_bias);
+  EXPECT_EQ(0, load_bias);
 }
 
-TEST_F(ElfInterfaceTest, init_program_headers_malformed32) {
+TEST_F(ElfInterfaceTest, init_program_headers_malformed_32) {
   InitProgramHeadersMalformed<Elf32_Ehdr, Elf32_Phdr, ElfInterface32>();
 }
 
-TEST_F(ElfInterfaceTest, init_program_headers_malformed64) {
+TEST_F(ElfInterfaceTest, init_program_headers_malformed_64) {
   InitProgramHeadersMalformed<Elf64_Ehdr, Elf64_Phdr, ElfInterface64>();
 }
 
@@ -732,16 +746,16 @@ void ElfInterfaceTest::InitSectionHeadersMalformed() {
   ehdr.e_shentsize = sizeof(Shdr);
   memory_.SetMemory(0, &ehdr, sizeof(ehdr));
 
-  uint64_t load_bias = 0;
+  int64_t load_bias = 0;
   ASSERT_TRUE(elf->Init(&load_bias));
-  EXPECT_EQ(0U, load_bias);
+  EXPECT_EQ(0, load_bias);
 }
 
-TEST_F(ElfInterfaceTest, init_section_headers_malformed32) {
+TEST_F(ElfInterfaceTest, init_section_headers_malformed_32) {
   InitSectionHeadersMalformed<Elf32_Ehdr, Elf32_Shdr, ElfInterface32>();
 }
 
-TEST_F(ElfInterfaceTest, init_section_headers_malformed64) {
+TEST_F(ElfInterfaceTest, init_section_headers_malformed_64) {
   InitSectionHeadersMalformed<Elf64_Ehdr, Elf64_Shdr, ElfInterface64>();
 }
 
@@ -796,11 +810,10 @@ void ElfInterfaceTest::InitSectionHeadersMalformedSymData() {
   shdr.sh_offset = 0xf000;
   shdr.sh_size = 0x1000;
   memory_.SetMemory(offset, &shdr, sizeof(shdr));
-  offset += ehdr.e_shentsize;
 
-  uint64_t load_bias = 0;
+  int64_t load_bias = 0;
   ASSERT_TRUE(elf->Init(&load_bias));
-  EXPECT_EQ(0U, load_bias);
+  EXPECT_EQ(0, load_bias);
   EXPECT_EQ(0U, elf->debug_frame_offset());
   EXPECT_EQ(0U, elf->debug_frame_size());
   EXPECT_EQ(0U, elf->gnu_debugdata_offset());
@@ -811,11 +824,11 @@ void ElfInterfaceTest::InitSectionHeadersMalformedSymData() {
   ASSERT_FALSE(elf->GetFunctionName(0x90010, &name, &name_offset));
 }
 
-TEST_F(ElfInterfaceTest, init_section_headers_malformed_symdata32) {
+TEST_F(ElfInterfaceTest, init_section_headers_malformed_symdata_32) {
   InitSectionHeadersMalformedSymData<Elf32_Ehdr, Elf32_Shdr, ElfInterface32>();
 }
 
-TEST_F(ElfInterfaceTest, init_section_headers_malformed_symdata64) {
+TEST_F(ElfInterfaceTest, init_section_headers_malformed_symdata_64) {
   InitSectionHeadersMalformedSymData<Elf64_Ehdr, Elf64_Shdr, ElfInterface64>();
 }
 
@@ -866,14 +879,13 @@ void ElfInterfaceTest::InitSectionHeaders(uint64_t entry_size) {
   shdr.sh_offset = 0xf000;
   shdr.sh_size = 0x1000;
   memory_.SetMemory(offset, &shdr, sizeof(shdr));
-  offset += ehdr.e_shentsize;
 
   InitSym<Sym>(0x5000, 0x90000, 0x1000, 0x100, 0xf000, "function_one");
   InitSym<Sym>(0x6000, 0xd0000, 0x1000, 0x300, 0xf000, "function_two");
 
-  uint64_t load_bias = 0;
+  int64_t load_bias = 0;
   ASSERT_TRUE(elf->Init(&load_bias));
-  EXPECT_EQ(0U, load_bias);
+  EXPECT_EQ(0, load_bias);
   EXPECT_EQ(0U, elf->debug_frame_offset());
   EXPECT_EQ(0U, elf->debug_frame_size());
   EXPECT_EQ(0U, elf->gnu_debugdata_offset());
@@ -890,19 +902,19 @@ void ElfInterfaceTest::InitSectionHeaders(uint64_t entry_size) {
   EXPECT_EQ(32U, name_offset);
 }
 
-TEST_F(ElfInterfaceTest, init_section_headers32) {
+TEST_F(ElfInterfaceTest, init_section_headers_32) {
   InitSectionHeaders<Elf32_Ehdr, Elf32_Shdr, Elf32_Sym, ElfInterface32>(sizeof(Elf32_Shdr));
 }
 
-TEST_F(ElfInterfaceTest, init_section_headers64) {
+TEST_F(ElfInterfaceTest, init_section_headers_64) {
   InitSectionHeaders<Elf64_Ehdr, Elf64_Shdr, Elf64_Sym, ElfInterface64>(sizeof(Elf64_Shdr));
 }
 
-TEST_F(ElfInterfaceTest, init_section_headers_non_std_entry_size32) {
+TEST_F(ElfInterfaceTest, init_section_headers_non_std_entry_size_32) {
   InitSectionHeaders<Elf32_Ehdr, Elf32_Shdr, Elf32_Sym, ElfInterface32>(0x100);
 }
 
-TEST_F(ElfInterfaceTest, init_section_headers_non_std_entry_size64) {
+TEST_F(ElfInterfaceTest, init_section_headers_non_std_entry_size_64) {
   InitSectionHeaders<Elf64_Ehdr, Elf64_Shdr, Elf64_Sym, ElfInterface64>(0x100);
 }
 
@@ -967,7 +979,7 @@ void ElfInterfaceTest::InitSectionHeadersOffsets() {
   shdr.sh_type = SHT_PROGBITS;
   shdr.sh_link = 2;
   shdr.sh_name = 0x400;
-  shdr.sh_addr = 0x6000;
+  shdr.sh_addr = 0xa000;
   shdr.sh_offset = 0xa000;
   shdr.sh_entsize = 0x100;
   shdr.sh_size = 0xf00;
@@ -977,10 +989,10 @@ void ElfInterfaceTest::InitSectionHeadersOffsets() {
   memset(&shdr, 0, sizeof(shdr));
   shdr.sh_type = SHT_NOTE;
   shdr.sh_name = 0x500;
+  shdr.sh_addr = 0xb000;
   shdr.sh_offset = 0xb000;
   shdr.sh_size = 0xf00;
   memory_.SetMemory(offset, &shdr, sizeof(shdr));
-  offset += ehdr.e_shentsize;
 
   memory_.SetMemory(0xf100, ".debug_frame", sizeof(".debug_frame"));
   memory_.SetMemory(0xf200, ".gnu_debugdata", sizeof(".gnu_debugdata"));
@@ -988,29 +1000,352 @@ void ElfInterfaceTest::InitSectionHeadersOffsets() {
   memory_.SetMemory(0xf400, ".eh_frame_hdr", sizeof(".eh_frame_hdr"));
   memory_.SetMemory(0xf500, ".note.gnu.build-id", sizeof(".note.gnu.build-id"));
 
-  uint64_t load_bias = 0;
+  int64_t load_bias = 0;
   ASSERT_TRUE(elf->Init(&load_bias));
-  EXPECT_EQ(0U, load_bias);
+  EXPECT_EQ(0, load_bias);
   EXPECT_EQ(0x6000U, elf->debug_frame_offset());
+  EXPECT_EQ(0, elf->debug_frame_section_bias());
   EXPECT_EQ(0x500U, elf->debug_frame_size());
+
   EXPECT_EQ(0x5000U, elf->gnu_debugdata_offset());
   EXPECT_EQ(0x800U, elf->gnu_debugdata_size());
+
   EXPECT_EQ(0x7000U, elf->eh_frame_offset());
+  EXPECT_EQ(0, elf->eh_frame_section_bias());
   EXPECT_EQ(0x800U, elf->eh_frame_size());
+
   EXPECT_EQ(0xa000U, elf->eh_frame_hdr_offset());
+  EXPECT_EQ(0, elf->eh_frame_hdr_section_bias());
   EXPECT_EQ(0xf00U, elf->eh_frame_hdr_size());
+
   EXPECT_EQ(0xb000U, elf->gnu_build_id_offset());
   EXPECT_EQ(0xf00U, elf->gnu_build_id_size());
 }
 
-TEST_F(ElfInterfaceTest, init_section_headers_offsets32) {
+TEST_F(ElfInterfaceTest, init_section_headers_offsets_32) {
   InitSectionHeadersOffsets<Elf32_Ehdr, Elf32_Shdr, ElfInterface32>();
 }
 
-TEST_F(ElfInterfaceTest, init_section_headers_offsets64) {
+TEST_F(ElfInterfaceTest, init_section_headers_offsets_64) {
   InitSectionHeadersOffsets<Elf64_Ehdr, Elf64_Shdr, ElfInterface64>();
 }
 
+template <typename Ehdr, typename Shdr, typename ElfInterfaceType>
+void ElfInterfaceTest::InitSectionHeadersOffsetsEhFrameSectionBias(uint64_t addr, uint64_t offset,
+                                                                   int64_t expected_bias) {
+  std::unique_ptr<ElfInterfaceType> elf(new ElfInterfaceType(&memory_));
+
+  uint64_t elf_offset = 0x2000;
+
+  Ehdr ehdr = {};
+  ehdr.e_shoff = elf_offset;
+  ehdr.e_shnum = 4;
+  ehdr.e_shentsize = sizeof(Shdr);
+  ehdr.e_shstrndx = 2;
+  memory_.SetMemory(0, &ehdr, sizeof(ehdr));
+
+  elf_offset += ehdr.e_shentsize;
+
+  Shdr shdr = {};
+  shdr.sh_type = SHT_PROGBITS;
+  shdr.sh_link = 2;
+  shdr.sh_name = 0x200;
+  shdr.sh_addr = 0x8000;
+  shdr.sh_offset = 0x8000;
+  shdr.sh_entsize = 0x100;
+  shdr.sh_size = 0x800;
+  memory_.SetMemory(elf_offset, &shdr, sizeof(shdr));
+  elf_offset += ehdr.e_shentsize;
+
+  // The string data for section header names.
+  memset(&shdr, 0, sizeof(shdr));
+  shdr.sh_type = SHT_STRTAB;
+  shdr.sh_name = 0x20000;
+  shdr.sh_offset = 0xf000;
+  shdr.sh_size = 0x1000;
+  memory_.SetMemory(elf_offset, &shdr, sizeof(shdr));
+  elf_offset += ehdr.e_shentsize;
+
+  memset(&shdr, 0, sizeof(shdr));
+  shdr.sh_type = SHT_PROGBITS;
+  shdr.sh_link = 2;
+  shdr.sh_name = 0x100;
+  shdr.sh_addr = addr;
+  shdr.sh_offset = offset;
+  shdr.sh_entsize = 0x100;
+  shdr.sh_size = 0x500;
+  memory_.SetMemory(elf_offset, &shdr, sizeof(shdr));
+
+  memory_.SetMemory(0xf100, ".eh_frame", sizeof(".eh_frame"));
+  memory_.SetMemory(0xf200, ".eh_frame_hdr", sizeof(".eh_frame_hdr"));
+
+  int64_t load_bias = 0;
+  ASSERT_TRUE(elf->Init(&load_bias));
+  EXPECT_EQ(0, load_bias);
+  EXPECT_EQ(offset, elf->eh_frame_offset());
+  EXPECT_EQ(expected_bias, elf->eh_frame_section_bias());
+  EXPECT_EQ(0x500U, elf->eh_frame_size());
+
+  EXPECT_EQ(0x8000U, elf->eh_frame_hdr_offset());
+  EXPECT_EQ(0, elf->eh_frame_hdr_section_bias());
+  EXPECT_EQ(0x800U, elf->eh_frame_hdr_size());
+}
+
+TEST_F(ElfInterfaceTest, init_section_headers_offsets_eh_frame_section_bias_zero_32) {
+  InitSectionHeadersOffsetsEhFrameSectionBias<Elf32_Ehdr, Elf32_Shdr, ElfInterface32>(0x4000,
+                                                                                      0x4000, 0);
+}
+
+TEST_F(ElfInterfaceTest, init_section_headers_offsets_eh_frame_section_bias_zero_64) {
+  InitSectionHeadersOffsetsEhFrameSectionBias<Elf64_Ehdr, Elf64_Shdr, ElfInterface64>(0x6000,
+                                                                                      0x6000, 0);
+}
+
+TEST_F(ElfInterfaceTest, init_section_headers_offsets_eh_frame_section_bias_positive_32) {
+  InitSectionHeadersOffsetsEhFrameSectionBias<Elf32_Ehdr, Elf32_Shdr, ElfInterface32>(
+      0x5000, 0x4000, 0x1000);
+}
+
+TEST_F(ElfInterfaceTest, init_section_headers_offsets_eh_frame_section_bias_positive_64) {
+  InitSectionHeadersOffsetsEhFrameSectionBias<Elf64_Ehdr, Elf64_Shdr, ElfInterface64>(
+      0x6000, 0x4000, 0x2000);
+}
+
+TEST_F(ElfInterfaceTest, init_section_headers_offsets_eh_frame_section_bias_negative_32) {
+  InitSectionHeadersOffsetsEhFrameSectionBias<Elf32_Ehdr, Elf32_Shdr, ElfInterface32>(
+      0x3000, 0x4000, -0x1000);
+}
+
+TEST_F(ElfInterfaceTest, init_section_headers_offsets_eh_frame_section_bias_negative_64) {
+  InitSectionHeadersOffsetsEhFrameSectionBias<Elf64_Ehdr, Elf64_Shdr, ElfInterface64>(
+      0x6000, 0x9000, -0x3000);
+}
+
+template <typename Ehdr, typename Shdr, typename ElfInterfaceType>
+void ElfInterfaceTest::InitSectionHeadersOffsetsEhFrameHdrSectionBias(uint64_t addr,
+                                                                      uint64_t offset,
+                                                                      int64_t expected_bias) {
+  std::unique_ptr<ElfInterfaceType> elf(new ElfInterfaceType(&memory_));
+
+  uint64_t elf_offset = 0x2000;
+
+  Ehdr ehdr = {};
+  ehdr.e_shoff = elf_offset;
+  ehdr.e_shnum = 4;
+  ehdr.e_shentsize = sizeof(Shdr);
+  ehdr.e_shstrndx = 2;
+  memory_.SetMemory(0, &ehdr, sizeof(ehdr));
+
+  elf_offset += ehdr.e_shentsize;
+
+  Shdr shdr = {};
+  shdr.sh_type = SHT_PROGBITS;
+  shdr.sh_link = 2;
+  shdr.sh_name = 0x200;
+  shdr.sh_addr = addr;
+  shdr.sh_offset = offset;
+  shdr.sh_entsize = 0x100;
+  shdr.sh_size = 0x800;
+  memory_.SetMemory(elf_offset, &shdr, sizeof(shdr));
+  elf_offset += ehdr.e_shentsize;
+
+  // The string data for section header names.
+  memset(&shdr, 0, sizeof(shdr));
+  shdr.sh_type = SHT_STRTAB;
+  shdr.sh_name = 0x20000;
+  shdr.sh_offset = 0xf000;
+  shdr.sh_size = 0x1000;
+  memory_.SetMemory(elf_offset, &shdr, sizeof(shdr));
+  elf_offset += ehdr.e_shentsize;
+
+  memset(&shdr, 0, sizeof(shdr));
+  shdr.sh_type = SHT_PROGBITS;
+  shdr.sh_link = 2;
+  shdr.sh_name = 0x100;
+  shdr.sh_addr = 0x5000;
+  shdr.sh_offset = 0x5000;
+  shdr.sh_entsize = 0x100;
+  shdr.sh_size = 0x500;
+  memory_.SetMemory(elf_offset, &shdr, sizeof(shdr));
+
+  memory_.SetMemory(0xf100, ".eh_frame", sizeof(".eh_frame"));
+  memory_.SetMemory(0xf200, ".eh_frame_hdr", sizeof(".eh_frame_hdr"));
+
+  int64_t load_bias = 0;
+  ASSERT_TRUE(elf->Init(&load_bias));
+  EXPECT_EQ(0, load_bias);
+  EXPECT_EQ(0x5000U, elf->eh_frame_offset());
+  EXPECT_EQ(0, elf->eh_frame_section_bias());
+  EXPECT_EQ(0x500U, elf->eh_frame_size());
+  EXPECT_EQ(offset, elf->eh_frame_hdr_offset());
+  EXPECT_EQ(expected_bias, elf->eh_frame_hdr_section_bias());
+  EXPECT_EQ(0x800U, elf->eh_frame_hdr_size());
+}
+
+TEST_F(ElfInterfaceTest, init_section_headers_offsets_eh_frame_hdr_section_bias_zero_32) {
+  InitSectionHeadersOffsetsEhFrameHdrSectionBias<Elf32_Ehdr, Elf32_Shdr, ElfInterface32>(0x9000,
+                                                                                         0x9000, 0);
+}
+
+TEST_F(ElfInterfaceTest, init_section_headers_offsets_eh_frame_hdr_section_bias_zero_64) {
+  InitSectionHeadersOffsetsEhFrameHdrSectionBias<Elf64_Ehdr, Elf64_Shdr, ElfInterface64>(0xa000,
+                                                                                         0xa000, 0);
+}
+
+TEST_F(ElfInterfaceTest, init_section_headers_offsets_eh_frame_hdr_section_bias_positive_32) {
+  InitSectionHeadersOffsetsEhFrameHdrSectionBias<Elf32_Ehdr, Elf32_Shdr, ElfInterface32>(
+      0x9000, 0x4000, 0x5000);
+}
+
+TEST_F(ElfInterfaceTest, init_section_headers_offsets_eh_frame_hdr_section_bias_positive_64) {
+  InitSectionHeadersOffsetsEhFrameHdrSectionBias<Elf64_Ehdr, Elf64_Shdr, ElfInterface64>(
+      0x6000, 0x1000, 0x5000);
+}
+
+TEST_F(ElfInterfaceTest, init_section_headers_offsets_eh_frame_hdr_section_bias_negative_32) {
+  InitSectionHeadersOffsetsEhFrameHdrSectionBias<Elf32_Ehdr, Elf32_Shdr, ElfInterface32>(
+      0x3000, 0x5000, -0x2000);
+}
+
+TEST_F(ElfInterfaceTest, init_section_headers_offsets_eh_frame_hdr_section_bias_negative_64) {
+  InitSectionHeadersOffsetsEhFrameHdrSectionBias<Elf64_Ehdr, Elf64_Shdr, ElfInterface64>(
+      0x5000, 0x9000, -0x4000);
+}
+
+template <typename Ehdr, typename Shdr, typename ElfInterfaceType>
+void ElfInterfaceTest::InitSectionHeadersOffsetsDebugFrameSectionBias(uint64_t addr,
+                                                                      uint64_t offset,
+                                                                      int64_t expected_bias) {
+  std::unique_ptr<ElfInterfaceType> elf(new ElfInterfaceType(&memory_));
+
+  uint64_t elf_offset = 0x2000;
+
+  Ehdr ehdr = {};
+  ehdr.e_shoff = elf_offset;
+  ehdr.e_shnum = 3;
+  ehdr.e_shentsize = sizeof(Shdr);
+  ehdr.e_shstrndx = 2;
+  memory_.SetMemory(0, &ehdr, sizeof(ehdr));
+
+  elf_offset += ehdr.e_shentsize;
+
+  Shdr shdr = {};
+  shdr.sh_type = SHT_PROGBITS;
+  shdr.sh_link = 2;
+  shdr.sh_name = 0x100;
+  shdr.sh_addr = addr;
+  shdr.sh_offset = offset;
+  shdr.sh_entsize = 0x100;
+  shdr.sh_size = 0x800;
+  memory_.SetMemory(elf_offset, &shdr, sizeof(shdr));
+  elf_offset += ehdr.e_shentsize;
+
+  // The string data for section header names.
+  memset(&shdr, 0, sizeof(shdr));
+  shdr.sh_type = SHT_STRTAB;
+  shdr.sh_name = 0x20000;
+  shdr.sh_offset = 0xf000;
+  shdr.sh_size = 0x1000;
+  memory_.SetMemory(elf_offset, &shdr, sizeof(shdr));
+
+  memory_.SetMemory(0xf100, ".debug_frame", sizeof(".debug_frame"));
+
+  int64_t load_bias = 0;
+  ASSERT_TRUE(elf->Init(&load_bias));
+  EXPECT_EQ(0, load_bias);
+  EXPECT_EQ(offset, elf->debug_frame_offset());
+  EXPECT_EQ(expected_bias, elf->debug_frame_section_bias());
+  EXPECT_EQ(0x800U, elf->debug_frame_size());
+}
+
+TEST_F(ElfInterfaceTest, init_section_headers_offsets_debug_frame_section_bias_zero_32) {
+  InitSectionHeadersOffsetsDebugFrameSectionBias<Elf32_Ehdr, Elf32_Shdr, ElfInterface32>(0x5000,
+                                                                                         0x5000, 0);
+}
+
+TEST_F(ElfInterfaceTest, init_section_headers_offsets_debug_frame_section_bias_zero_64) {
+  InitSectionHeadersOffsetsDebugFrameSectionBias<Elf64_Ehdr, Elf64_Shdr, ElfInterface64>(0xa000,
+                                                                                         0xa000, 0);
+}
+
+TEST_F(ElfInterfaceTest, init_section_headers_offsets_debug_frame_section_bias_positive_32) {
+  InitSectionHeadersOffsetsDebugFrameSectionBias<Elf32_Ehdr, Elf32_Shdr, ElfInterface32>(
+      0x5000, 0x2000, 0x3000);
+}
+
+TEST_F(ElfInterfaceTest, init_section_headers_offsets_debug_frame_section_bias_positive_64) {
+  InitSectionHeadersOffsetsDebugFrameSectionBias<Elf64_Ehdr, Elf64_Shdr, ElfInterface64>(
+      0x7000, 0x1000, 0x6000);
+}
+
+TEST_F(ElfInterfaceTest, init_section_headers_offsets_debug_frame_section_bias_negative_32) {
+  InitSectionHeadersOffsetsDebugFrameSectionBias<Elf32_Ehdr, Elf32_Shdr, ElfInterface32>(
+      0x6000, 0x7000, -0x1000);
+}
+
+TEST_F(ElfInterfaceTest, init_section_headers_offsets_debug_frame_section_bias_negative_64) {
+  InitSectionHeadersOffsetsDebugFrameSectionBias<Elf64_Ehdr, Elf64_Shdr, ElfInterface64>(
+      0x3000, 0x5000, -0x2000);
+}
+
+template <typename Ehdr, typename Phdr, typename ElfInterfaceType>
+void ElfInterfaceTest::CheckGnuEhFrame(uint64_t addr, uint64_t offset, int64_t expected_bias) {
+  std::unique_ptr<ElfInterface> elf(new ElfInterfaceType(&memory_));
+
+  Ehdr ehdr = {};
+  ehdr.e_phoff = 0x100;
+  ehdr.e_phnum = 2;
+  ehdr.e_phentsize = sizeof(Phdr);
+  memory_.SetMemory(0, &ehdr, sizeof(ehdr));
+
+  uint64_t phdr_offset = 0x100;
+
+  Phdr phdr = {};
+  phdr.p_type = PT_LOAD;
+  phdr.p_memsz = 0x10000;
+  phdr.p_flags = PF_R | PF_X;
+  phdr.p_align = 0x1000;
+  memory_.SetMemory(phdr_offset, &phdr, sizeof(phdr));
+  phdr_offset += sizeof(phdr);
+
+  memset(&phdr, 0, sizeof(phdr));
+  phdr.p_type = PT_GNU_EH_FRAME;
+  phdr.p_paddr = addr;
+  phdr.p_offset = offset;
+  memory_.SetMemory(phdr_offset, &phdr, sizeof(phdr));
+
+  int64_t load_bias = 0;
+  ASSERT_TRUE(elf->Init(&load_bias));
+  EXPECT_EQ(0, load_bias);
+  EXPECT_EQ(expected_bias, elf->eh_frame_hdr_section_bias());
+}
+
+TEST_F(ElfInterfaceTest, eh_frame_zero_section_bias_32) {
+  ElfInterfaceTest::CheckGnuEhFrame<Elf32_Ehdr, Elf32_Phdr, ElfInterface32>(0x4000, 0x4000, 0);
+}
+
+TEST_F(ElfInterfaceTest, eh_frame_zero_section_bias_64) {
+  ElfInterfaceTest::CheckGnuEhFrame<Elf64_Ehdr, Elf64_Phdr, ElfInterface64>(0x4000, 0x4000, 0);
+}
+
+TEST_F(ElfInterfaceTest, eh_frame_positive_section_bias_32) {
+  ElfInterfaceTest::CheckGnuEhFrame<Elf32_Ehdr, Elf32_Phdr, ElfInterface32>(0x4000, 0x1000, 0x3000);
+}
+
+TEST_F(ElfInterfaceTest, eh_frame_positive_section_bias_64) {
+  ElfInterfaceTest::CheckGnuEhFrame<Elf64_Ehdr, Elf64_Phdr, ElfInterface64>(0x4000, 0x1000, 0x3000);
+}
+
+TEST_F(ElfInterfaceTest, eh_frame_negative_section_bias_32) {
+  ElfInterfaceTest::CheckGnuEhFrame<Elf32_Ehdr, Elf32_Phdr, ElfInterface32>(0x4000, 0x5000,
+                                                                            -0x1000);
+}
+
+TEST_F(ElfInterfaceTest, eh_frame_negative_section_bias_64) {
+  ElfInterfaceTest::CheckGnuEhFrame<Elf64_Ehdr, Elf64_Phdr, ElfInterface64>(0x4000, 0x5000,
+                                                                            -0x1000);
+}
+
 TEST_F(ElfInterfaceTest, is_valid_pc_from_pt_load) {
   std::unique_ptr<ElfInterface> elf(new ElfInterface32(&memory_));
 
@@ -1028,9 +1363,9 @@ TEST_F(ElfInterfaceTest, is_valid_pc_from_pt_load) {
   phdr.p_align = 0x1000;
   memory_.SetMemory(0x100, &phdr, sizeof(phdr));
 
-  uint64_t load_bias = 0;
+  int64_t load_bias = 0;
   ASSERT_TRUE(elf->Init(&load_bias));
-  EXPECT_EQ(0U, load_bias);
+  EXPECT_EQ(0, load_bias);
   EXPECT_TRUE(elf->IsValidPc(0));
   EXPECT_TRUE(elf->IsValidPc(0x5000));
   EXPECT_TRUE(elf->IsValidPc(0xffff));
@@ -1054,9 +1389,9 @@ TEST_F(ElfInterfaceTest, is_valid_pc_from_pt_load_non_zero_load_bias) {
   phdr.p_align = 0x1000;
   memory_.SetMemory(0x100, &phdr, sizeof(phdr));
 
-  uint64_t load_bias = 0;
+  int64_t load_bias = 0;
   ASSERT_TRUE(elf->Init(&load_bias));
-  EXPECT_EQ(0x2000U, load_bias);
+  EXPECT_EQ(0x2000, load_bias);
   EXPECT_FALSE(elf->IsValidPc(0));
   EXPECT_FALSE(elf->IsValidPc(0x1000));
   EXPECT_FALSE(elf->IsValidPc(0x1fff));
@@ -1111,10 +1446,10 @@ TEST_F(ElfInterfaceTest, is_valid_pc_from_debug_frame) {
   memory_.SetData32(0x708, 0x2100);
   memory_.SetData32(0x70c, 0x200);
 
-  uint64_t load_bias = 0;
+  int64_t load_bias = 0;
   ASSERT_TRUE(elf->Init(&load_bias));
-  elf->InitHeaders(0);
-  EXPECT_EQ(0U, load_bias);
+  elf->InitHeaders();
+  EXPECT_EQ(0, load_bias);
   EXPECT_FALSE(elf->IsValidPc(0));
   EXPECT_FALSE(elf->IsValidPc(0x20ff));
   EXPECT_TRUE(elf->IsValidPc(0x2100));
@@ -1168,10 +1503,10 @@ TEST_F(ElfInterfaceTest, is_valid_pc_from_eh_frame) {
   memory_.SetData32(0x708, 0x20f8);
   memory_.SetData32(0x70c, 0x200);
 
-  uint64_t load_bias = 0;
+  int64_t load_bias = 0;
   ASSERT_TRUE(elf->Init(&load_bias));
-  elf->InitHeaders(0);
-  EXPECT_EQ(0U, load_bias);
+  elf->InitHeaders();
+  EXPECT_EQ(0, load_bias);
   EXPECT_FALSE(elf->IsValidPc(0));
   EXPECT_FALSE(elf->IsValidPc(0x27ff));
   EXPECT_TRUE(elf->IsValidPc(0x2800));
@@ -1207,7 +1542,6 @@ void ElfInterfaceTest::BuildID() {
   note_offset += sizeof("GNU");
   // This part of the note does not contain any trailing '\0'.
   memcpy(&note_section[note_offset], "BUILDID", 7);
-  note_offset += 8;
 
   Shdr shdr = {};
   shdr.sh_type = SHT_NOTE;
@@ -1224,16 +1558,23 @@ void ElfInterfaceTest::BuildID() {
   shdr.sh_offset = 0xf000;
   shdr.sh_size = 0x1000;
   memory_.SetMemory(offset, &shdr, sizeof(shdr));
-  offset += ehdr.e_shentsize;
 
   memory_.SetMemory(0xf500, ".note.gnu.build-id", sizeof(".note.gnu.build-id"));
   memory_.SetMemory(0xb000, note_section, sizeof(note_section));
 
-  uint64_t load_bias = 0;
+  int64_t load_bias = 0;
   ASSERT_TRUE(elf->Init(&load_bias));
   ASSERT_EQ("BUILDID", elf->GetBuildID());
 }
 
+TEST_F(ElfInterfaceTest, build_id_32) {
+  BuildID<Elf32_Ehdr, Elf32_Shdr, Elf32_Nhdr, ElfInterface32>();
+}
+
+TEST_F(ElfInterfaceTest, build_id_64) {
+  BuildID<Elf64_Ehdr, Elf64_Shdr, Elf64_Nhdr, ElfInterface64>();
+}
+
 template <typename Ehdr, typename Shdr, typename Nhdr, typename ElfInterfaceType>
 void ElfInterfaceTest::BuildIDTwoNotes() {
   std::unique_ptr<ElfInterfaceType> elf(new ElfInterfaceType(&memory_));
@@ -1272,7 +1613,6 @@ void ElfInterfaceTest::BuildIDTwoNotes() {
   note_offset += sizeof("GNU");
   // This part of the note does not contain any trailing '\0'.
   memcpy(&note_section[note_offset], "BUILDID", 7);
-  note_offset += 8;
 
   Shdr shdr = {};
   shdr.sh_type = SHT_NOTE;
@@ -1289,16 +1629,23 @@ void ElfInterfaceTest::BuildIDTwoNotes() {
   shdr.sh_offset = 0xf000;
   shdr.sh_size = 0x1000;
   memory_.SetMemory(offset, &shdr, sizeof(shdr));
-  offset += ehdr.e_shentsize;
 
   memory_.SetMemory(0xf500, ".note.gnu.build-id", sizeof(".note.gnu.build-id"));
   memory_.SetMemory(0xb000, note_section, sizeof(note_section));
 
-  uint64_t load_bias = 0;
+  int64_t load_bias = 0;
   ASSERT_TRUE(elf->Init(&load_bias));
   ASSERT_EQ("BUILDID", elf->GetBuildID());
 }
 
+TEST_F(ElfInterfaceTest, build_id_two_notes_32) {
+  BuildIDTwoNotes<Elf32_Ehdr, Elf32_Shdr, Elf32_Nhdr, ElfInterface32>();
+}
+
+TEST_F(ElfInterfaceTest, build_id_two_notes_64) {
+  BuildIDTwoNotes<Elf64_Ehdr, Elf64_Shdr, Elf64_Nhdr, ElfInterface64>();
+}
+
 template <typename Ehdr, typename Shdr, typename Nhdr, typename ElfInterfaceType>
 void ElfInterfaceTest::BuildIDSectionTooSmallForName () {
   std::unique_ptr<ElfInterfaceType> elf(new ElfInterfaceType(&memory_));
@@ -1326,7 +1673,6 @@ void ElfInterfaceTest::BuildIDSectionTooSmallForName () {
   note_offset += sizeof("GNU");
   // This part of the note does not contain any trailing '\0'.
   memcpy(&note_section[note_offset], "BUILDID", 7);
-  note_offset += 8;
 
   Shdr shdr = {};
   shdr.sh_type = SHT_NOTE;
@@ -1343,16 +1689,23 @@ void ElfInterfaceTest::BuildIDSectionTooSmallForName () {
   shdr.sh_offset = 0xf000;
   shdr.sh_size = 0x1000;
   memory_.SetMemory(offset, &shdr, sizeof(shdr));
-  offset += ehdr.e_shentsize;
 
   memory_.SetMemory(0xf500, ".note.gnu.build-id", sizeof(".note.gnu.build-id"));
   memory_.SetMemory(0xb000, note_section, sizeof(note_section));
 
-  uint64_t load_bias = 0;
+  int64_t load_bias = 0;
   ASSERT_TRUE(elf->Init(&load_bias));
   ASSERT_EQ("", elf->GetBuildID());
 }
 
+TEST_F(ElfInterfaceTest, build_id_section_too_small_for_name_32) {
+  BuildIDSectionTooSmallForName<Elf32_Ehdr, Elf32_Shdr, Elf32_Nhdr, ElfInterface32>();
+}
+
+TEST_F(ElfInterfaceTest, build_id_section_too_small_for_name_64) {
+  BuildIDSectionTooSmallForName<Elf64_Ehdr, Elf64_Shdr, Elf64_Nhdr, ElfInterface64>();
+}
+
 template <typename Ehdr, typename Shdr, typename Nhdr, typename ElfInterfaceType>
 void ElfInterfaceTest::BuildIDSectionTooSmallForDesc () {
   std::unique_ptr<ElfInterfaceType> elf(new ElfInterfaceType(&memory_));
@@ -1380,7 +1733,6 @@ void ElfInterfaceTest::BuildIDSectionTooSmallForDesc () {
   note_offset += sizeof("GNU");
   // This part of the note does not contain any trailing '\0'.
   memcpy(&note_section[note_offset], "BUILDID", 7);
-  note_offset += 8;
 
   Shdr shdr = {};
   shdr.sh_type = SHT_NOTE;
@@ -1397,16 +1749,23 @@ void ElfInterfaceTest::BuildIDSectionTooSmallForDesc () {
   shdr.sh_offset = 0xf000;
   shdr.sh_size = 0x1000;
   memory_.SetMemory(offset, &shdr, sizeof(shdr));
-  offset += ehdr.e_shentsize;
 
   memory_.SetMemory(0xf500, ".note.gnu.build-id", sizeof(".note.gnu.build-id"));
   memory_.SetMemory(0xb000, note_section, sizeof(note_section));
 
-  uint64_t load_bias = 0;
+  int64_t load_bias = 0;
   ASSERT_TRUE(elf->Init(&load_bias));
   ASSERT_EQ("", elf->GetBuildID());
 }
 
+TEST_F(ElfInterfaceTest, build_id_section_too_small_for_desc_32) {
+  BuildIDSectionTooSmallForDesc<Elf32_Ehdr, Elf32_Shdr, Elf32_Nhdr, ElfInterface32>();
+}
+
+TEST_F(ElfInterfaceTest, build_id_section_too_small_for_desc_64) {
+  BuildIDSectionTooSmallForDesc<Elf64_Ehdr, Elf64_Shdr, Elf64_Nhdr, ElfInterface64>();
+}
+
 template <typename Ehdr, typename Shdr, typename Nhdr, typename ElfInterfaceType>
 void ElfInterfaceTest::BuildIDSectionTooSmallForHeader () {
   std::unique_ptr<ElfInterfaceType> elf(new ElfInterfaceType(&memory_));
@@ -1434,7 +1793,6 @@ void ElfInterfaceTest::BuildIDSectionTooSmallForHeader () {
   note_offset += sizeof("GNU");
   // This part of the note does not contain any trailing '\0'.
   memcpy(&note_section[note_offset], "BUILDID", 7);
-  note_offset += 8;
 
   Shdr shdr = {};
   shdr.sh_type = SHT_NOTE;
@@ -1451,58 +1809,25 @@ void ElfInterfaceTest::BuildIDSectionTooSmallForHeader () {
   shdr.sh_offset = 0xf000;
   shdr.sh_size = 0x1000;
   memory_.SetMemory(offset, &shdr, sizeof(shdr));
-  offset += ehdr.e_shentsize;
 
   memory_.SetMemory(0xf500, ".note.gnu.build-id", sizeof(".note.gnu.build-id"));
   memory_.SetMemory(0xb000, note_section, sizeof(note_section));
 
-  uint64_t load_bias = 0;
+  int64_t load_bias = 0;
   ASSERT_TRUE(elf->Init(&load_bias));
   ASSERT_EQ("", elf->GetBuildID());
 }
 
-TEST_F(ElfInterfaceTest, build_id32) {
-  BuildID<Elf32_Ehdr, Elf32_Shdr, Elf32_Nhdr, ElfInterface32>();
-}
-
-TEST_F(ElfInterfaceTest, build_id64) {
-  BuildID<Elf64_Ehdr, Elf64_Shdr, Elf64_Nhdr, ElfInterface64>();
-}
-
-TEST_F(ElfInterfaceTest, build_id_two_notes32) {
-  BuildIDTwoNotes<Elf32_Ehdr, Elf32_Shdr, Elf32_Nhdr, ElfInterface32>();
-}
-
-TEST_F(ElfInterfaceTest, build_id_two_notes64) {
-  BuildIDTwoNotes<Elf64_Ehdr, Elf64_Shdr, Elf64_Nhdr, ElfInterface64>();
-}
-
-TEST_F(ElfInterfaceTest, build_id_section_too_small_for_name32) {
-  BuildIDSectionTooSmallForName<Elf32_Ehdr, Elf32_Shdr, Elf32_Nhdr, ElfInterface32>();
-}
-
-TEST_F(ElfInterfaceTest, build_id_section_too_small_for_name64) {
-  BuildIDSectionTooSmallForName<Elf64_Ehdr, Elf64_Shdr, Elf64_Nhdr, ElfInterface64>();
-}
-
-TEST_F(ElfInterfaceTest, build_id_section_too_small_for_desc32) {
-  BuildIDSectionTooSmallForDesc<Elf32_Ehdr, Elf32_Shdr, Elf32_Nhdr, ElfInterface32>();
-}
-
-TEST_F(ElfInterfaceTest, build_id_section_too_small_for_desc64) {
-  BuildIDSectionTooSmallForDesc<Elf64_Ehdr, Elf64_Shdr, Elf64_Nhdr, ElfInterface64>();
-}
-
-TEST_F(ElfInterfaceTest, build_id_section_too_small_for_header32) {
+TEST_F(ElfInterfaceTest, build_id_section_too_small_for_header_32) {
   BuildIDSectionTooSmallForHeader<Elf32_Ehdr, Elf32_Shdr, Elf32_Nhdr, ElfInterface32>();
 }
 
-TEST_F(ElfInterfaceTest, build_id_section_too_small_for_header64) {
+TEST_F(ElfInterfaceTest, build_id_section_too_small_for_header_64) {
   BuildIDSectionTooSmallForHeader<Elf64_Ehdr, Elf64_Shdr, Elf64_Nhdr, ElfInterface64>();
 }
 
 template <typename Ehdr, typename Phdr, typename ElfInterfaceType>
-void ElfInterfaceTest::CheckLoadBiasInFirstPhdr(uint64_t load_bias) {
+void ElfInterfaceTest::CheckLoadBiasInFirstPhdr(int64_t load_bias) {
   Ehdr ehdr = {};
   ehdr.e_phoff = 0x100;
   ehdr.e_phnum = 2;
@@ -1526,11 +1851,11 @@ void ElfInterfaceTest::CheckLoadBiasInFirstPhdr(uint64_t load_bias) {
   phdr.p_align = 0x1000;
   memory_.SetMemory(0x100 + sizeof(phdr), &phdr, sizeof(phdr));
 
-  uint64_t static_load_bias = ElfInterface::GetLoadBias<Ehdr, Phdr>(&memory_);
+  int64_t static_load_bias = ElfInterface::GetLoadBias<Ehdr, Phdr>(&memory_);
   ASSERT_EQ(load_bias, static_load_bias);
 
   std::unique_ptr<ElfInterfaceType> elf(new ElfInterfaceType(&memory_));
-  uint64_t init_load_bias = 0;
+  int64_t init_load_bias = 0;
   ASSERT_TRUE(elf->Init(&init_load_bias));
   ASSERT_EQ(init_load_bias, static_load_bias);
 }
@@ -1553,7 +1878,7 @@ TEST_F(ElfInterfaceTest, get_load_bias_non_zero_64) {
 
 template <typename Ehdr, typename Phdr, typename ElfInterfaceType>
 void ElfInterfaceTest::CheckLoadBiasInFirstExecPhdr(uint64_t offset, uint64_t vaddr,
-                                                    uint64_t load_bias) {
+                                                    int64_t load_bias) {
   Ehdr ehdr = {};
   ehdr.e_phoff = 0x100;
   ehdr.e_phnum = 3;
@@ -1586,11 +1911,11 @@ void ElfInterfaceTest::CheckLoadBiasInFirstExecPhdr(uint64_t offset, uint64_t va
   phdr.p_align = 0x1000;
   memory_.SetMemory(0x200 + sizeof(phdr), &phdr, sizeof(phdr));
 
-  uint64_t static_load_bias = ElfInterface::GetLoadBias<Ehdr, Phdr>(&memory_);
+  int64_t static_load_bias = ElfInterface::GetLoadBias<Ehdr, Phdr>(&memory_);
   ASSERT_EQ(load_bias, static_load_bias);
 
   std::unique_ptr<ElfInterfaceType> elf(new ElfInterfaceType(&memory_));
-  uint64_t init_load_bias = 0;
+  int64_t init_load_bias = 0;
   ASSERT_TRUE(elf->Init(&init_load_bias));
   ASSERT_EQ(init_load_bias, static_load_bias);
 }
@@ -1603,20 +1928,20 @@ TEST_F(ElfInterfaceTest, get_load_bias_exec_zero_64) {
   CheckLoadBiasInFirstExecPhdr<Elf64_Ehdr, Elf64_Phdr, ElfInterface64>(0x1000, 0x1000, 0);
 }
 
-TEST_F(ElfInterfaceTest, get_load_bias_exec_non_zero_32) {
+TEST_F(ElfInterfaceTest, get_load_bias_exec_positive_32) {
   CheckLoadBiasInFirstExecPhdr<Elf32_Ehdr, Elf32_Phdr, ElfInterface32>(0x1000, 0x4000, 0x3000);
 }
 
-TEST_F(ElfInterfaceTest, get_load_bias_exec_non_zero_64) {
+TEST_F(ElfInterfaceTest, get_load_bias_exec_positive_64) {
   CheckLoadBiasInFirstExecPhdr<Elf64_Ehdr, Elf64_Phdr, ElfInterface64>(0x1000, 0x4000, 0x3000);
 }
 
-TEST_F(ElfInterfaceTest, get_load_bias_exec_zero_from_error_32) {
-  CheckLoadBiasInFirstExecPhdr<Elf32_Ehdr, Elf32_Phdr, ElfInterface32>(0x5000, 0x1000, 0);
+TEST_F(ElfInterfaceTest, get_load_bias_exec_negative_32) {
+  CheckLoadBiasInFirstExecPhdr<Elf32_Ehdr, Elf32_Phdr, ElfInterface32>(0x5000, 0x1000, -0x4000);
 }
 
-TEST_F(ElfInterfaceTest, get_load_bias_exec_zero_from_error_64) {
-  CheckLoadBiasInFirstExecPhdr<Elf64_Ehdr, Elf64_Phdr, ElfInterface64>(0x5000, 0x1000, 0);
+TEST_F(ElfInterfaceTest, get_load_bias_exec_negative_64) {
+  CheckLoadBiasInFirstExecPhdr<Elf64_Ehdr, Elf64_Phdr, ElfInterface64>(0x5000, 0x1000, -0x4000);
 }
 
 }  // namespace unwindstack
diff --git a/libunwindstack/tests/ElfTest.cpp b/libunwindstack/tests/ElfTest.cpp
index c432d6d4f..8c1eade0d 100644
--- a/libunwindstack/tests/ElfTest.cpp
+++ b/libunwindstack/tests/ElfTest.cpp
@@ -310,8 +310,8 @@ class ElfInterfaceMock : public ElfInterface {
   ElfInterfaceMock(Memory* memory) : ElfInterface(memory) {}
   virtual ~ElfInterfaceMock() = default;
 
-  bool Init(uint64_t*) override { return false; }
-  void InitHeaders(uint64_t) override {}
+  bool Init(int64_t*) override { return false; }
+  void InitHeaders() override {}
   std::string GetSoname() override { return ""; }
   bool GetFunctionName(uint64_t, std::string*, uint64_t*) override { return false; }
   std::string GetBuildID() override { return ""; }
diff --git a/libunwindstack/tests/MapInfoGetLoadBiasTest.cpp b/libunwindstack/tests/MapInfoGetLoadBiasTest.cpp
index 2c9892847..da3dbf2ee 100644
--- a/libunwindstack/tests/MapInfoGetLoadBiasTest.cpp
+++ b/libunwindstack/tests/MapInfoGetLoadBiasTest.cpp
@@ -84,7 +84,7 @@ TEST_F(MapInfoGetLoadBiasTest, elf_exists) {
   elf_->FakeSetLoadBias(0);
   EXPECT_EQ(0U, map_info_->GetLoadBias(process_memory_));
 
-  map_info_->load_bias = static_cast<uint64_t>(-1);
+  map_info_->load_bias = INT64_MAX;
   elf_->FakeSetLoadBias(0x1000);
   EXPECT_EQ(0x1000U, map_info_->GetLoadBias(process_memory_));
 }
diff --git a/libunwindstack/tests/MapInfoTest.cpp b/libunwindstack/tests/MapInfoTest.cpp
index e2cbb9812..ef76b1b11 100644
--- a/libunwindstack/tests/MapInfoTest.cpp
+++ b/libunwindstack/tests/MapInfoTest.cpp
@@ -35,7 +35,7 @@ TEST(MapInfoTest, maps_constructor_const_char) {
   EXPECT_EQ(3UL, map_info.offset);
   EXPECT_EQ(4UL, map_info.flags);
   EXPECT_EQ("map", map_info.name);
-  EXPECT_EQ(static_cast<uint64_t>(-1), map_info.load_bias);
+  EXPECT_EQ(INT64_MAX, map_info.load_bias);
   EXPECT_EQ(0UL, map_info.elf_offset);
   EXPECT_TRUE(map_info.elf.get() == nullptr);
 }
@@ -51,7 +51,7 @@ TEST(MapInfoTest, maps_constructor_string) {
   EXPECT_EQ(3UL, map_info.offset);
   EXPECT_EQ(4UL, map_info.flags);
   EXPECT_EQ("string_map", map_info.name);
-  EXPECT_EQ(static_cast<uint64_t>(-1), map_info.load_bias);
+  EXPECT_EQ(INT64_MAX, map_info.load_bias);
   EXPECT_EQ(0UL, map_info.elf_offset);
   EXPECT_TRUE(map_info.elf.get() == nullptr);
 }
diff --git a/libunwindstack/tests/UnwindOfflineTest.cpp b/libunwindstack/tests/UnwindOfflineTest.cpp
index bded57aca..72eef3e0b 100644
--- a/libunwindstack/tests/UnwindOfflineTest.cpp
+++ b/libunwindstack/tests/UnwindOfflineTest.cpp
@@ -1534,4 +1534,53 @@ TEST_F(UnwindOfflineTest, load_bias_ro_rx_x86_64) {
   EXPECT_EQ(0x7ffd22415e90ULL, unwinder.frames()[16].sp);
 }
 
+TEST_F(UnwindOfflineTest, load_bias_different_section_bias_arm64) {
+  ASSERT_NO_FATAL_FAILURE(Init("load_bias_different_section_bias_arm64/", ARCH_ARM64));
+
+  Unwinder unwinder(128, maps_.get(), regs_.get(), process_memory_);
+  unwinder.Unwind();
+
+  std::string frame_info(DumpFrames(unwinder));
+  ASSERT_EQ(12U, unwinder.NumFrames()) << "Unwind:\n" << frame_info;
+  EXPECT_EQ(
+      "  #00 pc 00000000000d59bc  linker64 (__dl_syscall+28)\n"
+      "  #01 pc 00000000000554e8  linker64 (__dl__ZL24debuggerd_signal_handleriP7siginfoPv+1148)\n"
+      "  #02 pc 00000000000008c0  vdso (__kernel_rt_sigreturn)\n"
+      "  #03 pc 000000000007f3e8  libc.so (abort+168)\n"
+      "  #04 pc 00000000000459fc  test (std::__ndk1::__throw_bad_cast()+4)\n"
+      "  #05 pc 0000000000056d80  test (testing::Test::Run()+88)\n"
+      "  #06 pc 000000000005724c  test (testing::TestInfo::Run()+112)\n"
+      "  #07 pc 0000000000057558  test (testing::TestSuite::Run()+116)\n"
+      "  #08 pc 000000000005bffc  test (testing::internal::UnitTestImpl::RunAllTests()+464)\n"
+      "  #09 pc 000000000005bd9c  test (testing::UnitTest::Run()+116)\n"
+      "  #10 pc 00000000000464e4  test (main+144)\n"
+      "  #11 pc 000000000007aa34  libc.so (__libc_init+108)\n",
+      frame_info);
+
+  EXPECT_EQ(0x7112cb99bcULL, unwinder.frames()[0].pc);
+  EXPECT_EQ(0x7112bdbbf0ULL, unwinder.frames()[0].sp);
+  EXPECT_EQ(0x7112c394e8ULL, unwinder.frames()[1].pc);
+  EXPECT_EQ(0x7112bdbbf0ULL, unwinder.frames()[1].sp);
+  EXPECT_EQ(0x7112be28c0ULL, unwinder.frames()[2].pc);
+  EXPECT_EQ(0x7112bdbda0ULL, unwinder.frames()[2].sp);
+  EXPECT_EQ(0x71115ab3e8ULL, unwinder.frames()[3].pc);
+  EXPECT_EQ(0x7fdd4a3f00ULL, unwinder.frames()[3].sp);
+  EXPECT_EQ(0x5f739dc9fcULL, unwinder.frames()[4].pc);
+  EXPECT_EQ(0x7fdd4a3fe0ULL, unwinder.frames()[4].sp);
+  EXPECT_EQ(0x5f739edd80ULL, unwinder.frames()[5].pc);
+  EXPECT_EQ(0x7fdd4a3ff0ULL, unwinder.frames()[5].sp);
+  EXPECT_EQ(0x5f739ee24cULL, unwinder.frames()[6].pc);
+  EXPECT_EQ(0x7fdd4a4010ULL, unwinder.frames()[6].sp);
+  EXPECT_EQ(0x5f739ee558ULL, unwinder.frames()[7].pc);
+  EXPECT_EQ(0x7fdd4a4040ULL, unwinder.frames()[7].sp);
+  EXPECT_EQ(0x5f739f2ffcULL, unwinder.frames()[8].pc);
+  EXPECT_EQ(0x7fdd4a4070ULL, unwinder.frames()[8].sp);
+  EXPECT_EQ(0x5f739f2d9cULL, unwinder.frames()[9].pc);
+  EXPECT_EQ(0x7fdd4a4100ULL, unwinder.frames()[9].sp);
+  EXPECT_EQ(0x5f739dd4e4ULL, unwinder.frames()[10].pc);
+  EXPECT_EQ(0x7fdd4a4130ULL, unwinder.frames()[10].sp);
+  EXPECT_EQ(0x71115a6a34ULL, unwinder.frames()[11].pc);
+  EXPECT_EQ(0x7fdd4a4170ULL, unwinder.frames()[11].sp);
+}
+
 }  // namespace unwindstack
diff --git a/libunwindstack/tests/files/offline/load_bias_different_section_bias_arm64/libc.so b/libunwindstack/tests/files/offline/load_bias_different_section_bias_arm64/libc.so
new file mode 100644
index 000000000..7bb7156bb
--- /dev/null
+++ b/libunwindstack/tests/files/offline/load_bias_different_section_bias_arm64/libc.so
diff --git a/libunwindstack/tests/files/offline/load_bias_different_section_bias_arm64/linker64 b/libunwindstack/tests/files/offline/load_bias_different_section_bias_arm64/linker64
new file mode 100644
index 000000000..00a3896d6
--- /dev/null
+++ b/libunwindstack/tests/files/offline/load_bias_different_section_bias_arm64/linker64
diff --git a/libunwindstack/tests/files/offline/load_bias_different_section_bias_arm64/maps.txt b/libunwindstack/tests/files/offline/load_bias_different_section_bias_arm64/maps.txt
new file mode 100644
index 000000000..a2babee1c
--- /dev/null
+++ b/libunwindstack/tests/files/offline/load_bias_different_section_bias_arm64/maps.txt
@@ -0,0 +1,7 @@
+5f73997000-5f739dc000 r--p 0 00:00 0   test
+5f739dc000-5f73a43000 r-xp 44000 00:00 0   test
+711152c000-711156e000 r--p 0 00:00 0   libc.so
+711156e000-7111611000 --xp 42000 00:00 0   libc.so
+7112be2000-7112be4000 r-xp 0 00:00 0   vdso
+7112be4000-7112c1c000 r--p 0 00:00 0   linker64
+7112c1c000-7112ce1000 r-xp 38000 00:00 0   linker64
diff --git a/libunwindstack/tests/files/offline/load_bias_different_section_bias_arm64/regs.txt b/libunwindstack/tests/files/offline/load_bias_different_section_bias_arm64/regs.txt
new file mode 100644
index 000000000..3c601e15e
--- /dev/null
+++ b/libunwindstack/tests/files/offline/load_bias_different_section_bias_arm64/regs.txt
@@ -0,0 +1,33 @@
+x0: 7112bdbc24
+x1: 0
+x2: ffffffff
+x3: 0
+x4: 0
+x5: 0
+x6: 0
+x7: 7f7f7f7f7f7f7f7f
+x8: 62
+x9: a78826643b37f4a1
+x10: 7112bdbc20
+x11: 4100
+x12: 7112bdbb70
+x13: 18
+x14: 1d6518077
+x15: 2a43148faf732a
+x16: 16fc0
+x17: 71115f61a0
+x18: 7111d6a000
+x19: 7112cef1b0
+x20: 7112bdbda0
+x21: 59616d61
+x22: 1
+x23: 7112bdbc24
+x24: 4b0e
+x25: 62
+x26: 2
+x27: 0
+x28: 7111934020
+x29: 7112bdbd90
+sp: 7112bdbbf0
+lr: 7112c394ec
+pc: 7112cb99bc
diff --git a/libunwindstack/tests/files/offline/load_bias_different_section_bias_arm64/stack0.data b/libunwindstack/tests/files/offline/load_bias_different_section_bias_arm64/stack0.data
new file mode 100644
index 000000000..167473373
--- /dev/null
+++ b/libunwindstack/tests/files/offline/load_bias_different_section_bias_arm64/stack0.data
diff --git a/libunwindstack/tests/files/offline/load_bias_different_section_bias_arm64/stack1.data b/libunwindstack/tests/files/offline/load_bias_different_section_bias_arm64/stack1.data
new file mode 100644
index 000000000..6d7b48ab1
--- /dev/null
+++ b/libunwindstack/tests/files/offline/load_bias_different_section_bias_arm64/stack1.data
diff --git a/libunwindstack/tests/files/offline/load_bias_different_section_bias_arm64/test b/libunwindstack/tests/files/offline/load_bias_different_section_bias_arm64/test
new file mode 100644
index 000000000..3a75b8fbe
--- /dev/null
+++ b/libunwindstack/tests/files/offline/load_bias_different_section_bias_arm64/test
diff --git a/libunwindstack/tests/files/offline/load_bias_different_section_bias_arm64/vdso b/libunwindstack/tests/files/offline/load_bias_different_section_bias_arm64/vdso
new file mode 100644
index 000000000..49409167f
--- /dev/null
+++ b/libunwindstack/tests/files/offline/load_bias_different_section_bias_arm64/vdso