Introduce sentry for crash data collection

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/Arch.h

@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2020 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 _LIBUNWINDSTACK_ARCH_H
+#define _LIBUNWINDSTACK_ARCH_H
+
+#include <stddef.h>
+
+namespace unwindstack {
+
+enum ArchEnum : uint8_t {
+  ARCH_UNKNOWN = 0,
+  ARCH_ARM,
+  ARCH_ARM64,
+  ARCH_X86,
+  ARCH_X86_64,
+};
+
+static inline bool ArchIs32Bit(ArchEnum arch) {
+  switch (arch) {
+    case ARCH_ARM:
+    case ARCH_X86:
+      return true;
+    default:
+      return false;
+  }
+}
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_ARCH_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/DexFiles.h

@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2018 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 _LIBUNWINDSTACK_DEX_FILES_H
+#define _LIBUNWINDSTACK_DEX_FILES_H
+
+#include <stdint.h>
+
+#include <memory>
+#include <mutex>
+#include <string>
+#include <unordered_map>
+#include <vector>
+
+#include <unwindstack/Global.h>
+#include <unwindstack/Memory.h>
+
+namespace unwindstack {
+
+// Forward declarations.
+class DexFile;
+class Maps;
+struct MapInfo;
+enum ArchEnum : uint8_t;
+
+class DexFiles : public Global {
+ public:
+  explicit DexFiles(std::shared_ptr<Memory>& memory);
+  DexFiles(std::shared_ptr<Memory>& memory, std::vector<std::string>& search_libs);
+  virtual ~DexFiles();
+
+  DexFile* GetDexFile(uint64_t dex_file_offset, MapInfo* info);
+
+  void GetMethodInformation(Maps* maps, MapInfo* info, uint64_t dex_pc, std::string* method_name,
+                            uint64_t* method_offset);
+
+ private:
+  void Init(Maps* maps);
+
+  bool GetAddr(size_t index, uint64_t* addr);
+
+  uint64_t ReadEntryPtr32(uint64_t addr);
+
+  uint64_t ReadEntryPtr64(uint64_t addr);
+
+  bool ReadEntry32();
+
+  bool ReadEntry64();
+
+  bool ReadVariableData(uint64_t ptr_offset) override;
+
+  void ProcessArch() override;
+
+  std::mutex lock_;
+  bool initialized_ = false;
+  std::unordered_map<uint64_t, std::unique_ptr<DexFile>> files_;
+
+  uint64_t entry_addr_ = 0;
+  uint64_t (DexFiles::*read_entry_ptr_func_)(uint64_t) = nullptr;
+  bool (DexFiles::*read_entry_func_)() = nullptr;
+  std::vector<uint64_t> addrs_;
+};
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_DEX_FILES_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/DwarfError.h

@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2016 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 _LIBUNWINDSTACK_DWARF_ERROR_H
+#define _LIBUNWINDSTACK_DWARF_ERROR_H
+
+#include <stdint.h>
+
+namespace unwindstack {
+
+enum DwarfErrorCode : uint8_t {
+  DWARF_ERROR_NONE,
+  DWARF_ERROR_MEMORY_INVALID,
+  DWARF_ERROR_ILLEGAL_VALUE,
+  DWARF_ERROR_ILLEGAL_STATE,
+  DWARF_ERROR_STACK_INDEX_NOT_VALID,
+  DWARF_ERROR_NOT_IMPLEMENTED,
+  DWARF_ERROR_TOO_MANY_ITERATIONS,
+  DWARF_ERROR_CFA_NOT_DEFINED,
+  DWARF_ERROR_UNSUPPORTED_VERSION,
+  DWARF_ERROR_NO_FDES,
+};
+
+struct DwarfErrorData {
+  DwarfErrorCode code;
+  uint64_t address;
+};
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_DWARF_ERROR_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/DwarfLocation.h

@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2016 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 _LIBUNWINDSTACK_DWARF_LOCATION_H
+#define _LIBUNWINDSTACK_DWARF_LOCATION_H
+
+#include <stdint.h>
+
+#include <unordered_map>
+
+namespace unwindstack {
+
+struct DwarfCie;
+
+enum DwarfLocationEnum : uint8_t {
+  DWARF_LOCATION_INVALID = 0,
+  DWARF_LOCATION_UNDEFINED,
+  DWARF_LOCATION_OFFSET,
+  DWARF_LOCATION_VAL_OFFSET,
+  DWARF_LOCATION_REGISTER,
+  DWARF_LOCATION_EXPRESSION,
+  DWARF_LOCATION_VAL_EXPRESSION,
+  DWARF_LOCATION_PSEUDO_REGISTER,
+};
+
+struct DwarfLocation {
+  DwarfLocationEnum type;
+  uint64_t values[2];
+};
+
+struct DwarfLocations : public std::unordered_map<uint32_t, DwarfLocation> {
+  const DwarfCie* cie;
+  // The range of PCs where the locations are valid (end is exclusive).
+  uint64_t pc_start = 0;
+  uint64_t pc_end = 0;
+};
+typedef DwarfLocations dwarf_loc_regs_t;
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_DWARF_LOCATION_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/DwarfMemory.h

@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2016 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 _LIBUNWINDSTACK_DWARF_MEMORY_H
+#define _LIBUNWINDSTACK_DWARF_MEMORY_H
+
+#include <stdint.h>
+
+namespace unwindstack {
+
+// Forward declarations.
+class Memory;
+
+class DwarfMemory {
+ public:
+  DwarfMemory(Memory* memory) : memory_(memory) {}
+  virtual ~DwarfMemory() = default;
+
+  bool ReadBytes(void* dst, size_t num_bytes);
+
+  template <typename SignedType>
+  bool ReadSigned(uint64_t* value);
+
+  bool ReadULEB128(uint64_t* value);
+
+  bool ReadSLEB128(int64_t* value);
+
+  template <typename AddressType>
+  size_t GetEncodedSize(uint8_t encoding);
+
+  bool AdjustEncodedValue(uint8_t encoding, uint64_t* value);
+
+  template <typename AddressType>
+  bool ReadEncodedValue(uint8_t encoding, uint64_t* value);
+
+  uint64_t cur_offset() { return cur_offset_; }
+  void set_cur_offset(uint64_t cur_offset) { cur_offset_ = cur_offset; }
+
+  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); }
+
+  void set_func_offset(uint64_t offset) { func_offset_ = offset; }
+  void clear_func_offset() { func_offset_ = static_cast<uint64_t>(-1); }
+
+  void set_text_offset(uint64_t offset) { text_offset_ = offset; }
+  void clear_text_offset() { text_offset_ = static_cast<uint64_t>(-1); }
+
+ private:
+  Memory* memory_;
+  uint64_t cur_offset_ = 0;
+
+  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);
+};
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_DWARF_MEMORY_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/DwarfSection.h

@@ -0,0 +1,177 @@
+/*
+ * Copyright (C) 2016 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 _LIBUNWINDSTACK_DWARF_SECTION_H
+#define _LIBUNWINDSTACK_DWARF_SECTION_H
+
+#include <stdint.h>
+
+#include <iterator>
+#include <map>
+#include <unordered_map>
+
+#include <unwindstack/DwarfError.h>
+#include <unwindstack/DwarfLocation.h>
+#include <unwindstack/DwarfMemory.h>
+#include <unwindstack/DwarfStructs.h>
+
+namespace unwindstack {
+
+// Forward declarations.
+enum ArchEnum : uint8_t;
+class Memory;
+class Regs;
+template <typename AddressType>
+struct RegsInfo;
+
+class DwarfSection {
+ public:
+  DwarfSection(Memory* memory);
+  virtual ~DwarfSection() = default;
+
+  class iterator : public std::iterator<std::bidirectional_iterator_tag, DwarfFde*> {
+   public:
+    iterator(DwarfSection* section, size_t index) : index_(index) {
+      section->GetFdes(&fdes_);
+      if (index_ == static_cast<size_t>(-1)) {
+        index_ = fdes_.size();
+      }
+    }
+
+    iterator& operator++() {
+      index_++;
+      return *this;
+    }
+    iterator& operator++(int increment) {
+      index_ += increment;
+      return *this;
+    }
+    iterator& operator--() {
+      index_--;
+      return *this;
+    }
+    iterator& operator--(int decrement) {
+      index_ -= decrement;
+      return *this;
+    }
+
+    bool operator==(const iterator& rhs) { return this->index_ == rhs.index_; }
+    bool operator!=(const iterator& rhs) { return this->index_ != rhs.index_; }
+
+    const DwarfFde* operator*() {
+      if (index_ > fdes_.size()) return nullptr;
+      return fdes_[index_];
+    }
+
+   private:
+    std::vector<const DwarfFde*> fdes_;
+    size_t index_ = 0;
+  };
+
+  iterator begin() { return iterator(this, 0); }
+  iterator end() { return iterator(this, static_cast<size_t>(-1)); }
+
+  DwarfErrorCode LastErrorCode() { return last_error_.code; }
+  uint64_t LastErrorAddress() { return last_error_.address; }
+
+  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;
+
+  virtual bool Log(uint8_t indent, uint64_t pc, const DwarfFde* fde, ArchEnum arch) = 0;
+
+  virtual void GetFdes(std::vector<const DwarfFde*>* fdes) = 0;
+
+  virtual const DwarfFde* GetFdeFromPc(uint64_t pc) = 0;
+
+  virtual bool GetCfaLocationInfo(uint64_t pc, const DwarfFde* fde, dwarf_loc_regs_t* loc_regs,
+                                  ArchEnum arch) = 0;
+
+  virtual uint64_t GetCieOffsetFromFde32(uint32_t pointer) = 0;
+
+  virtual uint64_t GetCieOffsetFromFde64(uint64_t pointer) = 0;
+
+  virtual uint64_t AdjustPcFromFde(uint64_t pc) = 0;
+
+  bool Step(uint64_t pc, Regs* regs, Memory* process_memory, bool* finished, bool* is_signal_frame);
+
+ protected:
+  DwarfMemory memory_;
+  DwarfErrorData last_error_{DWARF_ERROR_NONE, 0};
+
+  uint32_t cie32_value_ = 0;
+  uint64_t cie64_value_ = 0;
+
+  std::unordered_map<uint64_t, DwarfFde> fde_entries_;
+  std::unordered_map<uint64_t, DwarfCie> cie_entries_;
+  std::unordered_map<uint64_t, dwarf_loc_regs_t> cie_loc_regs_;
+  std::map<uint64_t, dwarf_loc_regs_t> loc_regs_;  // Single row indexed by pc_end.
+};
+
+template <typename AddressType>
+class DwarfSectionImpl : public DwarfSection {
+ public:
+  DwarfSectionImpl(Memory* memory) : DwarfSection(memory) {}
+  virtual ~DwarfSectionImpl() = default;
+
+  bool Init(uint64_t offset, uint64_t size, int64_t section_bias) override;
+
+  const DwarfCie* GetCieFromOffset(uint64_t offset);
+
+  const DwarfFde* GetFdeFromOffset(uint64_t offset);
+
+  const DwarfFde* GetFdeFromPc(uint64_t pc) override;
+
+  void GetFdes(std::vector<const DwarfFde*>* fdes) override;
+
+  bool EvalRegister(const DwarfLocation* loc, uint32_t reg, AddressType* reg_ptr, void* info);
+
+  bool Eval(const DwarfCie* cie, Memory* regular_memory, const dwarf_loc_regs_t& loc_regs,
+            Regs* regs, bool* finished) override;
+
+  bool GetCfaLocationInfo(uint64_t pc, const DwarfFde* fde, dwarf_loc_regs_t* loc_regs,
+                          ArchEnum arch) override;
+
+  bool Log(uint8_t indent, uint64_t pc, const DwarfFde* fde, ArchEnum arch) override;
+
+ protected:
+  bool GetNextCieOrFde(const DwarfFde** fde_entry);
+
+  bool FillInCieHeader(DwarfCie* cie);
+
+  bool FillInCie(DwarfCie* cie);
+
+  bool FillInFdeHeader(DwarfFde* fde);
+
+  bool FillInFde(DwarfFde* fde);
+
+  bool EvalExpression(const DwarfLocation& loc, Memory* regular_memory, AddressType* value,
+                      RegsInfo<AddressType>* regs_info, bool* is_dex_pc);
+
+  void InsertFde(const DwarfFde* fde);
+
+  int64_t section_bias_ = 0;
+  uint64_t entries_offset_ = 0;
+  uint64_t entries_end_ = 0;
+  uint64_t next_entries_offset_ = 0;
+  uint64_t pc_offset_ = 0;
+
+  std::map<uint64_t, std::pair<uint64_t, const DwarfFde*>> fdes_;
+};
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_DWARF_SECTION_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/DwarfStructs.h

@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2016 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 _LIBUNWINDSTACK_DWARF_STRUCTS_H
+#define _LIBUNWINDSTACK_DWARF_STRUCTS_H
+
+#include <stdint.h>
+
+#include <vector>
+
+namespace unwindstack {
+
+struct DwarfCie {
+  uint8_t version = 0;
+  uint8_t fde_address_encoding = 0;
+  uint8_t lsda_encoding = 0;
+  uint8_t segment_size = 0;
+  std::vector<char> augmentation_string;
+  uint64_t personality_handler = 0;
+  uint64_t cfa_instructions_offset = 0;
+  uint64_t cfa_instructions_end = 0;
+  uint64_t code_alignment_factor = 0;
+  int64_t data_alignment_factor = 0;
+  uint64_t return_address_register = 0;
+  bool is_signal_frame = false;
+};
+
+struct DwarfFde {
+  uint64_t cie_offset = 0;
+  uint64_t cfa_instructions_offset = 0;
+  uint64_t cfa_instructions_end = 0;
+  uint64_t pc_start = 0;
+  uint64_t pc_end = 0;
+  uint64_t lsda_address = 0;
+  const DwarfCie* cie = nullptr;
+};
+
+constexpr uint16_t CFA_REG = static_cast<uint16_t>(-1);
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_DWARF_STRUCTS_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/Elf.h

@@ -0,0 +1,130 @@
+/*
+ * Copyright (C) 2016 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 _LIBUNWINDSTACK_ELF_H
+#define _LIBUNWINDSTACK_ELF_H
+
+#include <stddef.h>
+
+#include <memory>
+#include <mutex>
+#include <string>
+#include <unordered_map>
+#include <utility>
+
+#include <unwindstack/Arch.h>
+#include <unwindstack/ElfInterface.h>
+#include <unwindstack/Memory.h>
+
+#if !defined(EM_AARCH64)
+#define EM_AARCH64 183
+#endif
+
+namespace unwindstack {
+
+// Forward declaration.
+struct MapInfo;
+class Regs;
+
+class Elf {
+ public:
+  Elf(Memory* memory) : memory_(memory) {}
+  virtual ~Elf() = default;
+
+  bool Init();
+
+  void InitGnuDebugdata();
+
+  void Invalidate();
+
+  std::string GetSoname();
+
+  bool GetFunctionName(uint64_t addr, std::string* name, uint64_t* func_offset);
+
+  bool GetGlobalVariableOffset(const std::string& name, uint64_t* memory_offset);
+
+  uint64_t GetRelPc(uint64_t pc, const MapInfo* map_info);
+
+  bool StepIfSignalHandler(uint64_t rel_pc, Regs* regs, Memory* process_memory);
+
+  bool Step(uint64_t rel_pc, Regs* regs, Memory* process_memory, bool* finished,
+            bool* is_signal_frame);
+
+  ElfInterface* CreateInterfaceFromMemory(Memory* memory);
+
+  std::string GetBuildID();
+
+  int64_t GetLoadBias() { return load_bias_; }
+
+  bool IsValidPc(uint64_t pc);
+
+  void GetLastError(ErrorData* data);
+  ErrorCode GetLastErrorCode();
+  uint64_t GetLastErrorAddress();
+
+  bool valid() { return valid_; }
+
+  uint32_t machine_type() { return machine_type_; }
+
+  uint8_t class_type() { return class_type_; }
+
+  ArchEnum arch() { return arch_; }
+
+  Memory* memory() { return memory_.get(); }
+
+  ElfInterface* interface() { return interface_.get(); }
+
+  ElfInterface* gnu_debugdata_interface() { return gnu_debugdata_interface_.get(); }
+
+  static bool IsValidElf(Memory* memory);
+
+  static bool GetInfo(Memory* memory, uint64_t* size);
+
+  static int64_t GetLoadBias(Memory* memory);
+
+  static std::string GetBuildID(Memory* memory);
+
+  static void SetCachingEnabled(bool enable);
+  static bool CachingEnabled() { return cache_enabled_; }
+
+  static void CacheLock();
+  static void CacheUnlock();
+  static void CacheAdd(MapInfo* info);
+  static bool CacheGet(MapInfo* info);
+  static bool CacheAfterCreateMemory(MapInfo* info);
+
+ protected:
+  bool valid_ = false;
+  int64_t load_bias_ = 0;
+  std::unique_ptr<ElfInterface> interface_;
+  std::unique_ptr<Memory> memory_;
+  uint32_t machine_type_;
+  uint8_t class_type_;
+  ArchEnum arch_;
+  // Protect calls that can modify internal state of the interface object.
+  std::mutex lock_;
+
+  std::unique_ptr<Memory> gnu_debugdata_memory_;
+  std::unique_ptr<ElfInterface> gnu_debugdata_interface_;
+
+  static bool cache_enabled_;
+  static std::unordered_map<std::string, std::pair<std::shared_ptr<Elf>, bool>>* cache_;
+  static std::mutex* cache_lock_;
+};
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_ELF_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/ElfInterface.h

@@ -0,0 +1,223 @@
+/*
+ * Copyright (C) 2016 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 _LIBUNWINDSTACK_ELF_INTERFACE_H
+#define _LIBUNWINDSTACK_ELF_INTERFACE_H
+
+#include <elf.h>
+#include <stdint.h>
+
+#include <memory>
+#include <string>
+#include <unordered_map>
+#include <vector>
+
+#include <unwindstack/DwarfSection.h>
+#include <unwindstack/Error.h>
+
+namespace unwindstack {
+
+// Forward declarations.
+class Memory;
+class Regs;
+class Symbols;
+
+struct LoadInfo {
+  uint64_t offset;
+  uint64_t table_offset;
+  size_t table_size;
+};
+
+enum : uint8_t {
+  SONAME_UNKNOWN = 0,
+  SONAME_VALID,
+  SONAME_INVALID,
+};
+
+struct ElfTypes32 {
+  using AddressType = uint32_t;
+  using Dyn = Elf32_Dyn;
+  using Ehdr = Elf32_Ehdr;
+  using Nhdr = Elf32_Nhdr;
+  using Phdr = Elf32_Phdr;
+  using Shdr = Elf32_Shdr;
+  using Sym = Elf32_Sym;
+};
+
+struct ElfTypes64 {
+  using AddressType = uint64_t;
+  using Dyn = Elf64_Dyn;
+  using Ehdr = Elf64_Ehdr;
+  using Nhdr = Elf64_Nhdr;
+  using Phdr = Elf64_Phdr;
+  using Shdr = Elf64_Shdr;
+  using Sym = Elf64_Sym;
+};
+
+class ElfInterface {
+ public:
+  ElfInterface(Memory* memory) : memory_(memory) {}
+  virtual ~ElfInterface();
+
+  virtual bool Init(int64_t* load_bias) = 0;
+
+  virtual void InitHeaders() = 0;
+
+  virtual std::string GetSoname() = 0;
+
+  virtual bool GetFunctionName(uint64_t addr, std::string* name, uint64_t* offset) = 0;
+
+  virtual bool GetGlobalVariable(const std::string& name, uint64_t* memory_address) = 0;
+
+  virtual std::string GetBuildID() = 0;
+
+  virtual bool Step(uint64_t rel_pc, Regs* regs, Memory* process_memory, bool* finished,
+                    bool* is_signal_frame);
+
+  virtual bool IsValidPc(uint64_t pc);
+
+  Memory* CreateGnuDebugdataMemory();
+
+  Memory* memory() { return memory_; }
+
+  const std::unordered_map<uint64_t, LoadInfo>& pt_loads() { return pt_loads_; }
+
+  void SetGnuDebugdataInterface(ElfInterface* interface) { gnu_debugdata_interface_ = interface; }
+
+  uint64_t dynamic_offset() { return dynamic_offset_; }
+  uint64_t dynamic_vaddr_start() { return dynamic_vaddr_start_; }
+  uint64_t dynamic_vaddr_end() { return dynamic_vaddr_end_; }
+  uint64_t data_offset() { return data_offset_; }
+  uint64_t data_vaddr_start() { return data_vaddr_start_; }
+  uint64_t data_vaddr_end() { return data_vaddr_end_; }
+  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_; }
+  uint64_t gnu_build_id_offset() { return gnu_build_id_offset_; }
+  uint64_t gnu_build_id_size() { return gnu_build_id_size_; }
+
+  DwarfSection* eh_frame() { return eh_frame_.get(); }
+  DwarfSection* debug_frame() { return debug_frame_.get(); }
+
+  const ErrorData& last_error() { return last_error_; }
+  ErrorCode LastErrorCode() { return last_error_.code; }
+  uint64_t LastErrorAddress() { return last_error_.address; }
+
+  template <typename EhdrType, typename PhdrType>
+  static int64_t GetLoadBias(Memory* memory);
+
+  template <typename EhdrType, typename ShdrType, typename NhdrType>
+  static std::string ReadBuildIDFromMemory(Memory* memory);
+
+ protected:
+  virtual void HandleUnknownType(uint32_t, uint64_t, uint64_t) {}
+
+  Memory* memory_;
+  std::unordered_map<uint64_t, LoadInfo> pt_loads_;
+
+  // Stored elf data.
+  uint64_t dynamic_offset_ = 0;
+  uint64_t dynamic_vaddr_start_ = 0;
+  uint64_t dynamic_vaddr_end_ = 0;
+
+  uint64_t data_offset_ = 0;
+  uint64_t data_vaddr_start_ = 0;
+  uint64_t data_vaddr_end_ = 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;
+  uint64_t gnu_debugdata_size_ = 0;
+
+  uint64_t gnu_build_id_offset_ = 0;
+  uint64_t gnu_build_id_size_ = 0;
+
+  uint8_t soname_type_ = SONAME_UNKNOWN;
+  std::string soname_;
+
+  ErrorData last_error_{ERROR_NONE, 0};
+
+  std::unique_ptr<DwarfSection> eh_frame_;
+  std::unique_ptr<DwarfSection> debug_frame_;
+  // The Elf object owns the gnu_debugdata interface object.
+  ElfInterface* gnu_debugdata_interface_ = nullptr;
+
+  std::vector<Symbols*> symbols_;
+  std::vector<std::pair<uint64_t, uint64_t>> strtabs_;
+};
+
+template <typename ElfTypes>
+class ElfInterfaceImpl : public ElfInterface {
+ public:
+  using AddressType = typename ElfTypes::AddressType;
+  using DynType = typename ElfTypes::Dyn;
+  using EhdrType = typename ElfTypes::Ehdr;
+  using NhdrType = typename ElfTypes::Nhdr;
+  using PhdrType = typename ElfTypes::Phdr;
+  using ShdrType = typename ElfTypes::Shdr;
+  using SymType = typename ElfTypes::Sym;
+
+  ElfInterfaceImpl(Memory* memory) : ElfInterface(memory) {}
+  virtual ~ElfInterfaceImpl() = default;
+
+  bool Init(int64_t* load_bias) override { return ReadAllHeaders(load_bias); }
+
+  void InitHeaders() override;
+
+  std::string GetSoname() override;
+
+  bool GetFunctionName(uint64_t addr, std::string* name, uint64_t* func_offset) override;
+
+  bool GetGlobalVariable(const std::string& name, uint64_t* memory_address) override;
+
+  std::string GetBuildID() override { return ReadBuildID(); }
+
+  static void GetMaxSize(Memory* memory, uint64_t* size);
+
+ protected:
+  bool ReadAllHeaders(int64_t* load_bias);
+
+  void ReadProgramHeaders(const EhdrType& ehdr, int64_t* load_bias);
+
+  void ReadSectionHeaders(const EhdrType& ehdr);
+
+  std::string ReadBuildID();
+};
+
+using ElfInterface32 = ElfInterfaceImpl<ElfTypes32>;
+using ElfInterface64 = ElfInterfaceImpl<ElfTypes64>;
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_ELF_INTERFACE_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/Error.h

@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2018 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 _LIBUNWINDSTACK_ERROR_H
+#define _LIBUNWINDSTACK_ERROR_H
+
+#include <stdint.h>
+
+namespace unwindstack {
+
+// A bit map of warnings, multiple warnings can be set at the same time.
+enum WarningCode : uint64_t {
+  WARNING_NONE = 0,
+  WARNING_DEX_PC_NOT_IN_MAP = 0x1,  // A dex pc was found, but it doesn't exist
+                                    // in any valid map.
+};
+
+enum ErrorCode : uint8_t {
+  ERROR_NONE,                   // No error.
+  ERROR_MEMORY_INVALID,         // Memory read failed.
+  ERROR_UNWIND_INFO,            // Unable to use unwind information to unwind.
+  ERROR_UNSUPPORTED,            // Encountered unsupported feature.
+  ERROR_INVALID_MAP,            // Unwind in an invalid map.
+  ERROR_MAX_FRAMES_EXCEEDED,    // The number of frames exceed the total allowed.
+  ERROR_REPEATED_FRAME,         // The last frame has the same pc/sp as the next.
+  ERROR_INVALID_ELF,            // Unwind in an invalid elf.
+  ERROR_THREAD_DOES_NOT_EXIST,  // Attempt to unwind a local thread that does
+                                // not exist.
+  ERROR_THREAD_TIMEOUT,         // Timeout trying to unwind a local thread.
+  ERROR_SYSTEM_CALL,            // System call failed while unwinding.
+};
+
+static inline const char* GetErrorCodeString(ErrorCode error) {
+  switch (error) {
+    case ERROR_NONE:
+      return "None";
+    case ERROR_MEMORY_INVALID:
+      return "Memory Invalid";
+    case ERROR_UNWIND_INFO:
+      return "Unwind Info";
+    case ERROR_UNSUPPORTED:
+      return "Unsupported";
+    case ERROR_INVALID_MAP:
+      return "Invalid Map";
+    case ERROR_MAX_FRAMES_EXCEEDED:
+      return "Maximum Frames Exceeded";
+    case ERROR_REPEATED_FRAME:
+      return "Repeated Frame";
+    case ERROR_INVALID_ELF:
+      return "Invalid Elf";
+    case ERROR_THREAD_DOES_NOT_EXIST:
+      return "Thread Does Not Exist";
+    case ERROR_THREAD_TIMEOUT:
+      return "Thread Timeout";
+    case ERROR_SYSTEM_CALL:
+      return "System Call Failed";
+  }
+}
+
+struct ErrorData {
+  ErrorCode code;
+  uint64_t address;  // Only valid when code is ERROR_MEMORY_INVALID.
+                     // Indicates the failing address.
+};
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_ERROR_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/Global.h

@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2018 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 _LIBUNWINDSTACK_GLOBAL_H
+#define _LIBUNWINDSTACK_GLOBAL_H
+
+#include <stdint.h>
+
+#include <memory>
+#include <mutex>
+#include <string>
+#include <unordered_map>
+#include <vector>
+
+#include <unwindstack/Elf.h>
+#include <unwindstack/Memory.h>
+
+namespace unwindstack {
+
+// Forward declarations.
+class Maps;
+struct MapInfo;
+
+class Global {
+ public:
+  explicit Global(std::shared_ptr<Memory>& memory);
+  Global(std::shared_ptr<Memory>& memory, std::vector<std::string>& search_libs);
+  virtual ~Global() = default;
+
+  void SetArch(ArchEnum arch);
+
+  ArchEnum arch() { return arch_; }
+
+ protected:
+  bool Searchable(const std::string& name);
+  void FindAndReadVariable(Maps* maps, const char* variable);
+
+  virtual bool ReadVariableData(uint64_t offset) = 0;
+
+  virtual void ProcessArch() = 0;
+
+  ArchEnum arch_ = ARCH_UNKNOWN;
+
+  std::shared_ptr<Memory> memory_;
+  std::vector<std::string> search_libs_;
+};
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_GLOBAL_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/JitDebug.h

@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2017 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 _LIBUNWINDSTACK_JIT_DEBUG_H
+#define _LIBUNWINDSTACK_JIT_DEBUG_H
+
+#include <stdint.h>
+
+#include <memory>
+#include <mutex>
+#include <string>
+#include <vector>
+
+#include <unwindstack/Global.h>
+#include <unwindstack/Memory.h>
+
+namespace unwindstack {
+
+// Forward declarations.
+class Elf;
+class Maps;
+enum ArchEnum : uint8_t;
+
+class JitDebug : public Global {
+ public:
+  explicit JitDebug(std::shared_ptr<Memory>& memory);
+  JitDebug(std::shared_ptr<Memory>& memory, std::vector<std::string>& search_libs);
+  virtual ~JitDebug();
+
+  Elf* GetElf(Maps* maps, uint64_t pc);
+
+ private:
+  void Init(Maps* maps);
+
+  uint64_t (JitDebug::*read_descriptor_func_)(uint64_t) = nullptr;
+  uint64_t (JitDebug::*read_entry_func_)(uint64_t*, uint64_t*) = nullptr;
+
+  uint64_t ReadDescriptor32(uint64_t);
+  uint64_t ReadDescriptor64(uint64_t);
+
+  uint64_t ReadEntry32Pack(uint64_t* start, uint64_t* size);
+  uint64_t ReadEntry32Pad(uint64_t* start, uint64_t* size);
+  uint64_t ReadEntry64(uint64_t* start, uint64_t* size);
+
+  bool ReadVariableData(uint64_t ptr_offset) override;
+
+  void ProcessArch() override;
+
+  uint64_t entry_addr_ = 0;
+  bool initialized_ = false;
+  std::vector<Elf*> elf_list_;
+
+  std::mutex lock_;
+};
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_JIT_DEBUG_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/LocalUnwinder.h

@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2018 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 _LIBUNWINDSTACK_LOCAL_UNWINDER_H
+#define _LIBUNWINDSTACK_LOCAL_UNWINDER_H
+
+#include <pthread.h>
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <memory>
+#include <string>
+#include <vector>
+
+#include <unwindstack/Error.h>
+#include <unwindstack/Maps.h>
+#include <unwindstack/Memory.h>
+
+namespace unwindstack {
+
+// Forward declarations.
+class Elf;
+struct MapInfo;
+
+struct LocalFrameData {
+  LocalFrameData(MapInfo* map_info, uint64_t pc, uint64_t rel_pc, const std::string& function_name,
+                 uint64_t function_offset)
+      : map_info(map_info),
+        pc(pc),
+        rel_pc(rel_pc),
+        function_name(function_name),
+        function_offset(function_offset) {}
+
+  MapInfo* map_info;
+  uint64_t pc;
+  uint64_t rel_pc;
+  std::string function_name;
+  uint64_t function_offset;
+};
+
+// This is a specialized class that should only be used for doing local unwinds.
+// The Unwind call can be made as multiple times on the same object, and it can
+// be called by multiple threads at the same time.
+// It is designed to be used in debugging circumstances to get a stack trace
+// as fast as possible.
+class LocalUnwinder {
+ public:
+  LocalUnwinder() = default;
+  LocalUnwinder(const std::vector<std::string>& skip_libraries) : skip_libraries_(skip_libraries) {}
+  ~LocalUnwinder() = default;
+
+  bool Init();
+
+  bool Unwind(std::vector<LocalFrameData>* frame_info, size_t max_frames);
+
+  bool ShouldSkipLibrary(const std::string& map_name);
+
+  MapInfo* GetMapInfo(uint64_t pc);
+
+  ErrorCode LastErrorCode() { return last_error_.code; }
+  uint64_t LastErrorAddress() { return last_error_.address; }
+
+ private:
+  pthread_rwlock_t maps_rwlock_;
+  std::unique_ptr<LocalUpdatableMaps> maps_ = nullptr;
+  std::shared_ptr<Memory> process_memory_;
+  std::vector<std::string> skip_libraries_;
+  ErrorData last_error_;
+};
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_LOCAL_UNWINDER_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/Log.h

@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2016 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 _LIBUNWINDSTACK_LOG_H
+#define _LIBUNWINDSTACK_LOG_H
+
+#include <stdint.h>
+
+namespace unwindstack {
+
+void log_to_stdout(bool enable);
+void log(uint8_t indent, const char* format, ...);
+void log_async_safe(const char* format, ...);
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_LOG_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/MachineArm.h

@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2017 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 _LIBUNWINDSTACK_MACHINE_ARM_H
+#define _LIBUNWINDSTACK_MACHINE_ARM_H
+
+#include <stdint.h>
+
+namespace unwindstack {
+
+enum ArmReg : uint16_t {
+  ARM_REG_R0 = 0,
+  ARM_REG_R1,
+  ARM_REG_R2,
+  ARM_REG_R3,
+  ARM_REG_R4,
+  ARM_REG_R5,
+  ARM_REG_R6,
+  ARM_REG_R7,
+  ARM_REG_R8,
+  ARM_REG_R9,
+  ARM_REG_R10,
+  ARM_REG_R11,
+  ARM_REG_R12,
+  ARM_REG_R13,
+  ARM_REG_R14,
+  ARM_REG_R15,
+  ARM_REG_LAST,
+
+  ARM_REG_SP = ARM_REG_R13,
+  ARM_REG_LR = ARM_REG_R14,
+  ARM_REG_PC = ARM_REG_R15,
+};
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_MACHINE_ARM_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/MachineArm64.h

@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2017 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 _LIBUNWINDSTACK_MACHINE_ARM64_H
+#define _LIBUNWINDSTACK_MACHINE_ARM64_H
+
+#include <stdint.h>
+
+namespace unwindstack {
+
+enum Arm64Reg : uint16_t {
+  ARM64_REG_R0 = 0,
+  ARM64_REG_R1,
+  ARM64_REG_R2,
+  ARM64_REG_R3,
+  ARM64_REG_R4,
+  ARM64_REG_R5,
+  ARM64_REG_R6,
+  ARM64_REG_R7,
+  ARM64_REG_R8,
+  ARM64_REG_R9,
+  ARM64_REG_R10,
+  ARM64_REG_R11,
+  ARM64_REG_R12,
+  ARM64_REG_R13,
+  ARM64_REG_R14,
+  ARM64_REG_R15,
+  ARM64_REG_R16,
+  ARM64_REG_R17,
+  ARM64_REG_R18,
+  ARM64_REG_R19,
+  ARM64_REG_R20,
+  ARM64_REG_R21,
+  ARM64_REG_R22,
+  ARM64_REG_R23,
+  ARM64_REG_R24,
+  ARM64_REG_R25,
+  ARM64_REG_R26,
+  ARM64_REG_R27,
+  ARM64_REG_R28,
+  ARM64_REG_R29,
+  ARM64_REG_R30,
+  ARM64_REG_R31,
+  ARM64_REG_PC,
+  ARM64_REG_PSTATE,
+  ARM64_REG_LAST,
+
+  ARM64_REG_SP = ARM64_REG_R31,
+  ARM64_REG_LR = ARM64_REG_R30,
+
+  // Pseudo registers. These are not machine registers.
+
+  // AARCH64 Return address signed state pseudo-register
+  ARM64_PREG_RA_SIGN_STATE = 34,
+  ARM64_PREG_FIRST = ARM64_PREG_RA_SIGN_STATE,
+  ARM64_PREG_LAST,
+};
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_MACHINE_ARM64_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/MachineX86.h

@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2017 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 _LIBUNWINDSTACK_MACHINE_X86_H
+#define _LIBUNWINDSTACK_MACHINE_X86_H
+
+#include <stdint.h>
+
+namespace unwindstack {
+
+// Matches the numbers for the registers as generated by compilers.
+// If this is changed, then unwinding will fail.
+enum X86Reg : uint16_t {
+  X86_REG_EAX = 0,
+  X86_REG_ECX = 1,
+  X86_REG_EDX = 2,
+  X86_REG_EBX = 3,
+  X86_REG_ESP = 4,
+  X86_REG_EBP = 5,
+  X86_REG_ESI = 6,
+  X86_REG_EDI = 7,
+  X86_REG_EIP = 8,
+  X86_REG_EFL = 9,
+  X86_REG_CS = 10,
+  X86_REG_SS = 11,
+  X86_REG_DS = 12,
+  X86_REG_ES = 13,
+  X86_REG_FS = 14,
+  X86_REG_GS = 15,
+  X86_REG_LAST,
+
+  X86_REG_SP = X86_REG_ESP,
+  X86_REG_PC = X86_REG_EIP,
+};
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_MACHINE_X86_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/MachineX86_64.h

@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2017 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 _LIBUNWINDSTACK_MACHINE_X86_64_H
+#define _LIBUNWINDSTACK_MACHINE_X86_64_H
+
+#include <stdint.h>
+
+namespace unwindstack {
+
+// Matches the numbers for the registers as generated by compilers.
+// If this is changed, then unwinding will fail.
+enum X86_64Reg : uint16_t {
+  X86_64_REG_RAX = 0,
+  X86_64_REG_RDX = 1,
+  X86_64_REG_RCX = 2,
+  X86_64_REG_RBX = 3,
+  X86_64_REG_RSI = 4,
+  X86_64_REG_RDI = 5,
+  X86_64_REG_RBP = 6,
+  X86_64_REG_RSP = 7,
+  X86_64_REG_R8 = 8,
+  X86_64_REG_R9 = 9,
+  X86_64_REG_R10 = 10,
+  X86_64_REG_R11 = 11,
+  X86_64_REG_R12 = 12,
+  X86_64_REG_R13 = 13,
+  X86_64_REG_R14 = 14,
+  X86_64_REG_R15 = 15,
+  X86_64_REG_RIP = 16,
+  X86_64_REG_LAST,
+
+  X86_64_REG_SP = X86_64_REG_RSP,
+  X86_64_REG_PC = X86_64_REG_RIP,
+};
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_MACHINE_X86_64_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/MapInfo.h

@@ -0,0 +1,132 @@
+/*
+ * Copyright (C) 2016 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 _LIBUNWINDSTACK_MAP_INFO_H
+#define _LIBUNWINDSTACK_MAP_INFO_H
+
+#include <stdint.h>
+
+#include <atomic>
+#include <memory>
+#include <mutex>
+#include <string>
+
+#include <unwindstack/Elf.h>
+
+namespace unwindstack {
+
+class MemoryFileAtOffset;
+
+struct MapInfo {
+  MapInfo(MapInfo* prev_map, MapInfo* prev_real_map, uint64_t start, uint64_t end, uint64_t offset,
+          uint64_t flags, const char* name)
+      : start(start),
+        end(end),
+        offset(offset),
+        flags(flags),
+        name(name),
+        prev_map(prev_map),
+        prev_real_map(prev_real_map),
+        load_bias(INT64_MAX),
+        build_id(0) {
+    if (prev_real_map != nullptr) prev_real_map->next_real_map = this;
+  }
+  MapInfo(MapInfo* prev_map, MapInfo* prev_real_map, uint64_t start, uint64_t end, uint64_t offset,
+          uint64_t flags, const std::string& name)
+      : start(start),
+        end(end),
+        offset(offset),
+        flags(flags),
+        name(name),
+        prev_map(prev_map),
+        prev_real_map(prev_real_map),
+        load_bias(INT64_MAX),
+        build_id(0) {
+    if (prev_real_map != nullptr) prev_real_map->next_real_map = this;
+  }
+  ~MapInfo();
+
+  uint64_t start = 0;
+  uint64_t end = 0;
+  uint64_t offset = 0;
+  uint16_t flags = 0;
+  std::string name;
+  std::shared_ptr<Elf> elf;
+  // The offset of the beginning of this mapping to the beginning of the
+  // ELF file.
+  // elf_offset == offset - elf_start_offset.
+  // This value is only non-zero if the offset is non-zero but there is
+  // no elf signature found at that offset.
+  uint64_t elf_offset = 0;
+  // This value is the offset into the file of the map in memory that is the
+  // start of the elf. This is not equal to offset when the linker splits
+  // shared libraries into a read-only and read-execute map.
+  uint64_t elf_start_offset = 0;
+
+  MapInfo* prev_map = nullptr;
+  // This is the previous map that is not empty with a 0 offset. For
+  // example, this set of maps:
+  //  1000-2000  r--p 000000 00:00 0 libc.so
+  //  2000-3000  ---p 000000 00:00 0 libc.so
+  //  3000-4000  r-xp 003000 00:00 0 libc.so
+  // The last map's prev_map would point to the 2000-3000 map, while the
+  // prev_real_map would point to the 1000-2000 map.
+  MapInfo* prev_real_map = nullptr;
+
+  // Same as above but set to point to the next map.
+  MapInfo* next_real_map = nullptr;
+
+  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
+  // make it easier to move to a fine grained lock in the future.
+  std::atomic<std::string*> build_id;
+
+  // Set to true if the elf file data is coming from memory.
+  bool memory_backed_elf = false;
+
+  // This function guarantees it will never return nullptr.
+  Elf* GetElf(const std::shared_ptr<Memory>& process_memory, ArchEnum expected_arch);
+
+  uint64_t GetLoadBias(const std::shared_ptr<Memory>& process_memory);
+
+  Memory* CreateMemory(const std::shared_ptr<Memory>& process_memory);
+
+  bool GetFunctionName(uint64_t addr, std::string* name, uint64_t* func_offset);
+
+  // Returns the raw build id read from the elf data.
+  const std::string& GetBuildID();
+
+  // Returns the printable version of the build id (hex dump of raw data).
+  std::string GetPrintableBuildID();
+
+  inline bool IsBlank() { return offset == 0 && flags == 0 && name.empty(); }
+
+ private:
+  MapInfo(const MapInfo&) = delete;
+  void operator=(const MapInfo&) = delete;
+
+  Memory* GetFileMemory();
+  bool InitFileMemoryFromPreviousReadOnlyMap(MemoryFileAtOffset* memory);
+
+  // Protect the creation of the elf object.
+  std::mutex mutex_;
+};
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_MAP_INFO_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/Maps.h

@@ -0,0 +1,136 @@
+/*
+ * Copyright (C) 2016 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 _LIBUNWINDSTACK_MAPS_H
+#define _LIBUNWINDSTACK_MAPS_H
+
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <memory>
+#include <string>
+#include <vector>
+
+#include <unwindstack/MapInfo.h>
+
+namespace unwindstack {
+
+// Special flag to indicate a map is in /dev/. However, a map in
+// /dev/ashmem/... does not set this flag.
+static constexpr int MAPS_FLAGS_DEVICE_MAP = 0x8000;
+// Special flag to indicate that this map represents an elf file
+// created by ART for use with the gdb jit debug interface.
+// This should only ever appear in offline maps data.
+static constexpr int MAPS_FLAGS_JIT_SYMFILE_MAP = 0x4000;
+
+class Maps {
+ public:
+  virtual ~Maps() = default;
+
+  Maps() = default;
+
+  // Maps are not copyable but movable, because they own pointers to MapInfo
+  // objects.
+  Maps(const Maps&) = delete;
+  Maps& operator=(const Maps&) = delete;
+  Maps(Maps&&) = default;
+  Maps& operator=(Maps&&) = default;
+
+  MapInfo* Find(uint64_t pc);
+
+  virtual bool Parse();
+
+  virtual const std::string GetMapsFile() const { return ""; }
+
+  void Add(uint64_t start, uint64_t end, uint64_t offset, uint64_t flags, const std::string& name,
+           uint64_t load_bias);
+
+  void Sort();
+
+  typedef std::vector<std::unique_ptr<MapInfo>>::iterator iterator;
+  iterator begin() { return maps_.begin(); }
+  iterator end() { return maps_.end(); }
+
+  typedef std::vector<std::unique_ptr<MapInfo>>::const_iterator const_iterator;
+  const_iterator begin() const { return maps_.begin(); }
+  const_iterator end() const { return maps_.end(); }
+
+  size_t Total() { return maps_.size(); }
+
+  MapInfo* Get(size_t index) {
+    if (index >= maps_.size()) return nullptr;
+    return maps_[index].get();
+  }
+
+ protected:
+  std::vector<std::unique_ptr<MapInfo>> maps_;
+};
+
+class RemoteMaps : public Maps {
+ public:
+  RemoteMaps(pid_t pid) : pid_(pid) {}
+  virtual ~RemoteMaps() = default;
+
+  virtual const std::string GetMapsFile() const override;
+
+ private:
+  pid_t pid_;
+};
+
+class LocalMaps : public RemoteMaps {
+ public:
+  LocalMaps() : RemoteMaps(getpid()) {}
+  virtual ~LocalMaps() = default;
+};
+
+class LocalUpdatableMaps : public Maps {
+ public:
+  LocalUpdatableMaps() : Maps() {}
+  virtual ~LocalUpdatableMaps() = default;
+
+  bool Reparse();
+
+  const std::string GetMapsFile() const override;
+
+ protected:
+  std::vector<std::unique_ptr<MapInfo>> saved_maps_;
+};
+
+class BufferMaps : public Maps {
+ public:
+  BufferMaps(const char* buffer) : buffer_(buffer) {}
+  virtual ~BufferMaps() = default;
+
+  bool Parse() override;
+
+ private:
+  const char* buffer_;
+};
+
+class FileMaps : public Maps {
+ public:
+  FileMaps(const std::string& file) : file_(file) {}
+  virtual ~FileMaps() = default;
+
+  const std::string GetMapsFile() const override { return file_; }
+
+ protected:
+  const std::string file_;
+};
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_MAPS_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/Memory.h

@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2016 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 _LIBUNWINDSTACK_MEMORY_H
+#define _LIBUNWINDSTACK_MEMORY_H
+
+#include <stdint.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <memory>
+#include <string>
+
+namespace unwindstack {
+
+class Memory {
+ public:
+  Memory() = default;
+  virtual ~Memory() = default;
+
+  static std::shared_ptr<Memory> CreateProcessMemory(pid_t pid);
+  static std::shared_ptr<Memory> CreateProcessMemoryCached(pid_t pid);
+  static std::shared_ptr<Memory> CreateOfflineMemory(const uint8_t* data, uint64_t start,
+                                                     uint64_t end);
+  static std::unique_ptr<Memory> CreateFileMemory(const std::string& path, uint64_t offset);
+
+  virtual bool ReadString(uint64_t addr, std::string* dst, size_t max_read);
+
+  virtual void Clear() {}
+
+  virtual bool IsLocal() const { return false; }
+
+  virtual size_t Read(uint64_t addr, void* dst, size_t size) = 0;
+  virtual long ReadTag(uint64_t) { return -1; }
+
+  bool ReadFully(uint64_t addr, void* dst, size_t size);
+
+  inline bool Read32(uint64_t addr, uint32_t* dst) {
+    return ReadFully(addr, dst, sizeof(uint32_t));
+  }
+
+  inline bool Read64(uint64_t addr, uint64_t* dst) {
+    return ReadFully(addr, dst, sizeof(uint64_t));
+  }
+};
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_MEMORY_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/Regs.h

@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2016 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 _LIBUNWINDSTACK_REGS_H
+#define _LIBUNWINDSTACK_REGS_H
+
+#include <stdint.h>
+#include <unistd.h>
+
+#include <functional>
+#include <string>
+#include <vector>
+
+#include <unwindstack/Arch.h>
+
+namespace unwindstack {
+
+// Forward declarations.
+class Elf;
+class Memory;
+
+class Regs {
+ public:
+  enum LocationEnum : uint8_t {
+    LOCATION_UNKNOWN = 0,
+    LOCATION_REGISTER,
+    LOCATION_SP_OFFSET,
+  };
+
+  struct Location {
+    Location(LocationEnum type, int16_t value) : type(type), value(value) {}
+
+    LocationEnum type;
+    int16_t value;
+  };
+
+  Regs(uint16_t total_regs, const Location& return_loc)
+      : total_regs_(total_regs), return_loc_(return_loc) {}
+  virtual ~Regs() = default;
+
+  virtual ArchEnum Arch() = 0;
+
+  bool Is32Bit() { return ArchIs32Bit(Arch()); }
+
+  virtual void* RawData() = 0;
+  virtual uint64_t pc() = 0;
+  virtual uint64_t sp() = 0;
+
+  virtual void set_pc(uint64_t pc) = 0;
+  virtual void set_sp(uint64_t sp) = 0;
+
+  uint64_t dex_pc() { return dex_pc_; }
+  void set_dex_pc(uint64_t dex_pc) { dex_pc_ = dex_pc; }
+
+  virtual void ResetPseudoRegisters() {}
+  virtual bool SetPseudoRegister(uint16_t, uint64_t) { return false; }
+  virtual bool GetPseudoRegister(uint16_t, uint64_t*) { return false; }
+
+  virtual bool StepIfSignalHandler(uint64_t elf_offset, Elf* elf, Memory* process_memory) = 0;
+
+  virtual bool SetPcFromReturnAddress(Memory* process_memory) = 0;
+
+  virtual void IterateRegisters(std::function<void(const char*, uint64_t)>) = 0;
+
+  uint16_t total_regs() { return total_regs_; }
+
+  virtual Regs* Clone() = 0;
+
+  static ArchEnum CurrentArch();
+  static Regs* RemoteGet(pid_t pid);
+  static Regs* CreateFromUcontext(ArchEnum arch, void* ucontext);
+  static Regs* CreateFromLocal();
+
+ protected:
+  uint16_t total_regs_;
+  Location return_loc_;
+  uint64_t dex_pc_ = 0;
+};
+
+template <typename AddressType>
+class RegsImpl : public Regs {
+ public:
+  RegsImpl(uint16_t total_regs, Location return_loc)
+      : Regs(total_regs, return_loc), regs_(total_regs) {}
+  virtual ~RegsImpl() = default;
+
+  inline AddressType& operator[](size_t reg) { return regs_[reg]; }
+
+  void* RawData() override { return regs_.data(); }
+
+  virtual void IterateRegisters(std::function<void(const char*, uint64_t)> fn) override {
+    for (size_t i = 0; i < regs_.size(); ++i) {
+      fn(std::to_string(i).c_str(), regs_[i]);
+    }
+  }
+
+ protected:
+  std::vector<AddressType> regs_;
+};
+
+uint64_t GetPcAdjustment(uint64_t rel_pc, Elf* elf, ArchEnum arch);
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_REGS_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/RegsArm.h

@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2016 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 _LIBUNWINDSTACK_REGS_ARM_H
+#define _LIBUNWINDSTACK_REGS_ARM_H
+
+#include <stdint.h>
+
+#include <functional>
+
+#include <unwindstack/Elf.h>
+#include <unwindstack/Regs.h>
+
+namespace unwindstack {
+
+// Forward declarations.
+class Memory;
+
+class RegsArm : public RegsImpl<uint32_t> {
+ public:
+  RegsArm();
+  virtual ~RegsArm() = default;
+
+  ArchEnum Arch() override final;
+
+  bool SetPcFromReturnAddress(Memory* process_memory) override;
+
+  bool StepIfSignalHandler(uint64_t elf_offset, Elf* elf, Memory* process_memory) override;
+
+  void IterateRegisters(std::function<void(const char*, uint64_t)>) override final;
+
+  uint64_t pc() override;
+  uint64_t sp() override;
+
+  void set_pc(uint64_t pc) override;
+  void set_sp(uint64_t sp) override;
+
+  Regs* Clone() override final;
+
+  static Regs* Read(void* data);
+
+  static Regs* CreateFromUcontext(void* ucontext);
+};
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_REGS_ARM_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/RegsArm64.h

@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2016 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 _LIBUNWINDSTACK_REGS_ARM64_H
+#define _LIBUNWINDSTACK_REGS_ARM64_H
+
+#include <stdint.h>
+
+#include <functional>
+
+#include <unwindstack/Elf.h>
+#include <unwindstack/MachineArm64.h>
+#include <unwindstack/Regs.h>
+
+namespace unwindstack {
+
+// Forward declarations.
+class Memory;
+
+class RegsArm64 : public RegsImpl<uint64_t> {
+ public:
+  RegsArm64();
+  virtual ~RegsArm64() = default;
+
+  ArchEnum Arch() override final;
+
+  bool SetPcFromReturnAddress(Memory* process_memory) override;
+
+  bool StepIfSignalHandler(uint64_t elf_offset, Elf* elf, Memory* process_memory) override;
+
+  void IterateRegisters(std::function<void(const char*, uint64_t)>) override final;
+
+  uint64_t pc() override;
+  uint64_t sp() override;
+
+  void set_pc(uint64_t pc) override;
+  void set_sp(uint64_t sp) override;
+
+  void ResetPseudoRegisters() override;
+
+  bool SetPseudoRegister(uint16_t id, uint64_t value) override;
+
+  bool GetPseudoRegister(uint16_t id, uint64_t* value) override;
+
+  bool IsRASigned();
+
+  void SetPACMask(uint64_t mask);
+
+  Regs* Clone() override final;
+
+  static Regs* Read(void* data);
+
+  static Regs* CreateFromUcontext(void* ucontext);
+
+ protected:
+  uint64_t pseudo_regs_[Arm64Reg::ARM64_PREG_LAST - Arm64Reg::ARM64_PREG_FIRST];
+  uint64_t pac_mask_;
+};
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_REGS_ARM64_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/RegsGetLocal.h

@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef _LIBUNWINDSTACK_REGS_GET_LOCAL_H
+#define _LIBUNWINDSTACK_REGS_GET_LOCAL_H
+
+namespace unwindstack {
+
+#if defined(__arm__)
+
+inline __attribute__((__always_inline__)) void AsmGetRegs(void* reg_data) {
+  asm volatile(
+      ".align 2\n"
+      "bx pc\n"
+      "nop\n"
+      ".code 32\n"
+      "stmia %[base], {r0-r12}\n"
+      "add r2, %[base], #52\n"
+      "mov r3, r13\n"
+      "mov r4, r14\n"
+      "mov r5, r15\n"
+      "stmia r2, {r3-r5}\n"
+      "orr %[base], pc, #1\n"
+      "bx %[base]\n"
+      : [ base ] "+r"(reg_data)
+      :
+      : "r2", "r3", "r4", "r5", "memory");
+}
+
+#elif defined(__aarch64__)
+
+inline __attribute__((__always_inline__)) void AsmGetRegs(void* reg_data) {
+  asm volatile(
+      "1:\n"
+      "stp x0, x1, [%[base], #0]\n"
+      "stp x2, x3, [%[base], #16]\n"
+      "stp x4, x5, [%[base], #32]\n"
+      "stp x6, x7, [%[base], #48]\n"
+      "stp x8, x9, [%[base], #64]\n"
+      "stp x10, x11, [%[base], #80]\n"
+      "stp x12, x13, [%[base], #96]\n"
+      "stp x14, x15, [%[base], #112]\n"
+      "stp x16, x17, [%[base], #128]\n"
+      "stp x18, x19, [%[base], #144]\n"
+      "stp x20, x21, [%[base], #160]\n"
+      "stp x22, x23, [%[base], #176]\n"
+      "stp x24, x25, [%[base], #192]\n"
+      "stp x26, x27, [%[base], #208]\n"
+      "stp x28, x29, [%[base], #224]\n"
+      "str x30, [%[base], #240]\n"
+      "mov x12, sp\n"
+      "adr x13, 1b\n"
+      "stp x12, x13, [%[base], #248]\n"
+      : [base] "+r"(reg_data)
+      :
+      : "x12", "x13", "memory");
+}
+
+#elif defined(__i386__) || defined(__x86_64__)
+
+extern "C" void AsmGetRegs(void* regs);
+
+#endif
+
+inline __attribute__((__always_inline__)) void RegsGetLocal(Regs* regs) {
+  AsmGetRegs(regs->RawData());
+}
+
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_REGS_GET_LOCAL_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/RegsX86.h

@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2016 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 _LIBUNWINDSTACK_REGS_X86_H
+#define _LIBUNWINDSTACK_REGS_X86_H
+
+#include <stdint.h>
+
+#include <functional>
+
+#include <unwindstack/Elf.h>
+#include <unwindstack/Regs.h>
+
+namespace unwindstack {
+
+// Forward declarations.
+class Memory;
+struct x86_ucontext_t;
+
+class RegsX86 : public RegsImpl<uint32_t> {
+ public:
+  RegsX86();
+  virtual ~RegsX86() = default;
+
+  ArchEnum Arch() override final;
+
+  bool SetPcFromReturnAddress(Memory* process_memory) override;
+
+  bool StepIfSignalHandler(uint64_t elf_offset, Elf* elf, Memory* process_memory) override;
+
+  void SetFromUcontext(x86_ucontext_t* ucontext);
+
+  void IterateRegisters(std::function<void(const char*, uint64_t)>) override final;
+
+  uint64_t pc() override;
+  uint64_t sp() override;
+
+  void set_pc(uint64_t pc) override;
+  void set_sp(uint64_t sp) override;
+
+  Regs* Clone() override final;
+
+  static Regs* Read(void* data);
+
+  static Regs* CreateFromUcontext(void* ucontext);
+};
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_REGS_X86_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/RegsX86_64.h

@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2016 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 _LIBUNWINDSTACK_REGS_X86_64_H
+#define _LIBUNWINDSTACK_REGS_X86_64_H
+
+#include <stdint.h>
+
+#include <functional>
+
+#include <unwindstack/Elf.h>
+#include <unwindstack/Regs.h>
+
+namespace unwindstack {
+
+// Forward declarations.
+class Memory;
+struct x86_64_ucontext_t;
+
+class RegsX86_64 : public RegsImpl<uint64_t> {
+ public:
+  RegsX86_64();
+  virtual ~RegsX86_64() = default;
+
+  ArchEnum Arch() override final;
+
+  bool SetPcFromReturnAddress(Memory* process_memory) override;
+
+  bool StepIfSignalHandler(uint64_t elf_offset, Elf* elf, Memory* process_memory) override;
+
+  void SetFromUcontext(x86_64_ucontext_t* ucontext);
+
+  void IterateRegisters(std::function<void(const char*, uint64_t)>) override final;
+
+  uint64_t pc() override;
+  uint64_t sp() override;
+
+  void set_pc(uint64_t pc) override;
+  void set_sp(uint64_t sp) override;
+
+  Regs* Clone() override final;
+
+  static Regs* Read(void* data);
+
+  static Regs* CreateFromUcontext(void* ucontext);
+};
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_REGS_X86_64_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/UcontextArm.h

@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef _LIBUNWINDSTACK_UCONTEXT_ARM_H
+#define _LIBUNWINDSTACK_UCONTEXT_ARM_H
+
+#include <stdint.h>
+
+#include <unwindstack/MachineArm.h>
+
+namespace unwindstack {
+
+struct arm_stack_t {
+  uint32_t ss_sp;    // void __user*
+  int32_t ss_flags;  // int
+  uint32_t ss_size;  // size_t
+};
+
+struct arm_mcontext_t {
+  uint32_t trap_no;             // unsigned long
+  uint32_t error_code;          // unsigned long
+  uint32_t oldmask;             // unsigned long
+  uint32_t regs[ARM_REG_LAST];  // unsigned long
+  uint32_t cpsr;                // unsigned long
+  uint32_t fault_address;       // unsigned long
+};
+
+struct arm_ucontext_t {
+  uint32_t uc_flags;  // unsigned long
+  uint32_t uc_link;   // struct ucontext*
+  arm_stack_t uc_stack;
+  arm_mcontext_t uc_mcontext;
+  // Nothing else is used, so don't define it.
+};
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_UCONTEXT_ARM_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/UcontextArm64.h

@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef _LIBUNWINDSTACK_UCONTEXT_ARM64_H
+#define _LIBUNWINDSTACK_UCONTEXT_ARM64_H
+
+#include <stdint.h>
+
+#include <unwindstack/MachineArm64.h>
+
+namespace unwindstack {
+
+struct arm64_stack_t {
+  uint64_t ss_sp;    // void __user*
+  int32_t ss_flags;  // int
+  uint64_t ss_size;  // size_t
+};
+
+struct arm64_sigset_t {
+  uint64_t sig;  // unsigned long
+};
+
+struct arm64_mcontext_t {
+  uint64_t fault_address;         // __u64
+  uint64_t regs[ARM64_REG_LAST];  // __u64
+  uint64_t pstate;                // __u64
+  // Nothing else is used, so don't define it.
+};
+
+struct arm64_ucontext_t {
+  uint64_t uc_flags;  // unsigned long
+  uint64_t uc_link;   // struct ucontext*
+  arm64_stack_t uc_stack;
+  arm64_sigset_t uc_sigmask;
+  // The kernel adds extra padding after uc_sigmask to match glibc sigset_t on ARM64.
+  char __padding[128 - sizeof(arm64_sigset_t)];
+  // The full structure requires 16 byte alignment, but our partial structure
+  // doesn't, so force the alignment.
+  arm64_mcontext_t uc_mcontext __attribute__((aligned(16)));
+};
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_UCONTEXT_ARM64_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/UcontextX86.h

@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef _LIBUNWINDSTACK_UCONTEXT_X86_H
+#define _LIBUNWINDSTACK_UCONTEXT_X86_H
+
+#include <stdint.h>
+
+#include <unwindstack/MachineX86.h>
+
+namespace unwindstack {
+
+struct x86_stack_t {
+  uint32_t ss_sp;    // void __user*
+  int32_t ss_flags;  // int
+  uint32_t ss_size;  // size_t
+};
+
+struct x86_mcontext_t {
+  uint32_t gs;
+  uint32_t fs;
+  uint32_t es;
+  uint32_t ds;
+  uint32_t edi;
+  uint32_t esi;
+  uint32_t ebp;
+  uint32_t esp;
+  uint32_t ebx;
+  uint32_t edx;
+  uint32_t ecx;
+  uint32_t eax;
+  uint32_t trapno;
+  uint32_t err;
+  uint32_t eip;
+  uint32_t cs;
+  uint32_t efl;
+  uint32_t uesp;
+  uint32_t ss;
+  // Only care about the registers, skip everything else.
+};
+
+struct x86_ucontext_t {
+  uint32_t uc_flags;  // unsigned long
+  uint32_t uc_link;   // struct ucontext*
+  x86_stack_t uc_stack;
+  x86_mcontext_t uc_mcontext;
+  // Nothing else is used, so don't define it.
+};
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_UCONTEXT_X86_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/UcontextX86_64.h

@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef _LIBUNWINDSTACK_UCONTEXT_X86_64_H
+#define _LIBUNWINDSTACK_UCONTEXT_X86_64_H
+
+#include <stdint.h>
+
+#include <unwindstack/MachineX86_64.h>
+
+namespace unwindstack {
+
+struct x86_64_stack_t {
+  uint64_t ss_sp;    // void __user*
+  int32_t ss_flags;  // int
+  int32_t pad;
+  uint64_t ss_size;  // size_t
+};
+
+struct x86_64_mcontext_t {
+  uint64_t r8;
+  uint64_t r9;
+  uint64_t r10;
+  uint64_t r11;
+  uint64_t r12;
+  uint64_t r13;
+  uint64_t r14;
+  uint64_t r15;
+  uint64_t rdi;
+  uint64_t rsi;
+  uint64_t rbp;
+  uint64_t rbx;
+  uint64_t rdx;
+  uint64_t rax;
+  uint64_t rcx;
+  uint64_t rsp;
+  uint64_t rip;
+  uint64_t efl;
+  uint64_t csgsfs;
+  uint64_t err;
+  uint64_t trapno;
+  uint64_t oldmask;
+  uint64_t cr2;
+  // Only care about the registers, skip everything else.
+};
+
+struct x86_64_ucontext_t {
+  uint64_t uc_flags;  // unsigned long
+  uint64_t uc_link;   // struct ucontext*
+  x86_64_stack_t uc_stack;
+  x86_64_mcontext_t uc_mcontext;
+  // Nothing else is used, so don't define it.
+};
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_UCONTEXT_X86_64_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/Unwinder.h

@@ -0,0 +1,207 @@
+/*
+ * Copyright (C) 2017 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 _LIBUNWINDSTACK_UNWINDER_H
+#define _LIBUNWINDSTACK_UNWINDER_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <memory>
+#include <string>
+#include <vector>
+
+#include <unwindstack/Arch.h>
+#include <unwindstack/DexFiles.h>
+#include <unwindstack/Error.h>
+#include <unwindstack/JitDebug.h>
+#include <unwindstack/Maps.h>
+#include <unwindstack/Memory.h>
+#include <unwindstack/Regs.h>
+
+namespace unwindstack {
+
+// Forward declarations.
+class Elf;
+class ThreadEntry;
+
+struct FrameData {
+  size_t num;
+
+  uint64_t rel_pc;
+  uint64_t pc;
+  uint64_t sp;
+
+  std::string function_name;
+  uint64_t function_offset = 0;
+
+  std::string map_name;
+  // The offset from the first map representing the frame. When there are
+  // two maps (read-only and read-execute) this will be the offset from
+  // the read-only map. When there is only one map, this will be the
+  // same as the actual offset of the map and match map_exact_offset.
+  uint64_t map_elf_start_offset = 0;
+  // The actual offset from the map where the pc lies.
+  uint64_t map_exact_offset = 0;
+  uint64_t map_start = 0;
+  uint64_t map_end = 0;
+  uint64_t map_load_bias = 0;
+  int map_flags = 0;
+};
+
+class Unwinder {
+ public:
+  Unwinder(size_t max_frames, Maps* maps, Regs* regs, std::shared_ptr<Memory> process_memory)
+      : max_frames_(max_frames),
+        maps_(maps),
+        regs_(regs),
+        process_memory_(process_memory),
+        arch_(regs->Arch()) {}
+  Unwinder(size_t max_frames, Maps* maps, std::shared_ptr<Memory> process_memory)
+      : max_frames_(max_frames), maps_(maps), process_memory_(process_memory) {}
+
+  virtual ~Unwinder() = default;
+
+  virtual void Unwind(const std::vector<std::string>* initial_map_names_to_skip = nullptr,
+                      const std::vector<std::string>* map_suffixes_to_ignore = nullptr);
+
+  size_t NumFrames() const { return frames_.size(); }
+
+  // Returns frames after unwinding.
+  // Intentionally mutable (which can be used to swap in reserved memory before unwinding).
+  std::vector<FrameData>& frames() { return frames_; }
+
+  std::vector<FrameData> ConsumeFrames() {
+    std::vector<FrameData> frames = std::move(frames_);
+    frames_.clear();
+    return frames;
+  }
+
+  std::string FormatFrame(size_t frame_num) const;
+  std::string FormatFrame(const FrameData& frame) const;
+
+  void SetArch(ArchEnum arch) { arch_ = arch; };
+
+  void SetJitDebug(JitDebug* jit_debug);
+
+  void SetRegs(Regs* regs) {
+    regs_ = regs;
+    arch_ = regs_ != nullptr ? regs->Arch() : ARCH_UNKNOWN;
+  }
+  Maps* GetMaps() { return maps_; }
+  std::shared_ptr<Memory>& GetProcessMemory() { return process_memory_; }
+
+  // Disabling the resolving of names results in the function name being
+  // set to an empty string and the function offset being set to zero.
+  void SetResolveNames(bool resolve) { resolve_names_ = resolve; }
+
+  // Enable/disable soname printing the soname for a map name if the elf is
+  // embedded in a file. This is enabled by default.
+  // NOTE: This does nothing unless resolving names is enabled.
+  void SetEmbeddedSoname(bool embedded_soname) { embedded_soname_ = embedded_soname; }
+
+  void SetDisplayBuildID(bool display_build_id) { display_build_id_ = display_build_id; }
+
+  void SetDexFiles(DexFiles* dex_files);
+
+  bool elf_from_memory_not_file() { return elf_from_memory_not_file_; }
+
+  ErrorCode LastErrorCode() { return last_error_.code; }
+  const char* LastErrorCodeString() { return GetErrorCodeString(last_error_.code); }
+  uint64_t LastErrorAddress() { return last_error_.address; }
+  uint64_t warnings() { return warnings_; }
+
+  // Builds a frame for symbolization using the maps from this unwinder. The
+  // constructed frame contains just enough information to be used to symbolize
+  // frames collected by frame-pointer unwinding that's done outside of
+  // libunwindstack. This is used by tombstoned to symbolize frame pointer-based
+  // stack traces that are collected by tools such as GWP-ASan and MTE.
+  static FrameData BuildFrameFromPcOnly(uint64_t pc, ArchEnum arch, Maps* maps, JitDebug* jit_debug,
+                                        std::shared_ptr<Memory> process_memory, bool resolve_names);
+  FrameData BuildFrameFromPcOnly(uint64_t pc);
+
+ protected:
+  Unwinder(size_t max_frames) : max_frames_(max_frames) {}
+  Unwinder(size_t max_frames, ArchEnum arch) : max_frames_(max_frames), arch_(arch) {}
+
+  void ClearErrors() {
+    warnings_ = WARNING_NONE;
+    last_error_.code = ERROR_NONE;
+    last_error_.address = 0;
+  }
+
+  void FillInDexFrame();
+  FrameData* FillInFrame(MapInfo* map_info, Elf* elf, uint64_t rel_pc, uint64_t pc_adjustment);
+
+  size_t max_frames_;
+  Maps* maps_;
+  Regs* regs_;
+  std::vector<FrameData> frames_;
+  std::shared_ptr<Memory> process_memory_;
+  JitDebug* jit_debug_ = nullptr;
+  DexFiles* dex_files_ = nullptr;
+  bool resolve_names_ = true;
+  bool embedded_soname_ = true;
+  bool display_build_id_ = false;
+  // True if at least one elf file is coming from memory and not the related
+  // file. This is only true if there is an actual file backing up the elf.
+  bool elf_from_memory_not_file_ = false;
+  ErrorData last_error_;
+  uint64_t warnings_;
+  ArchEnum arch_ = ARCH_UNKNOWN;
+};
+
+class UnwinderFromPid : public Unwinder {
+ public:
+  UnwinderFromPid(size_t max_frames, pid_t pid) : Unwinder(max_frames), pid_(pid) {}
+  UnwinderFromPid(size_t max_frames, pid_t pid, ArchEnum arch)
+      : Unwinder(max_frames, arch), pid_(pid) {}
+  virtual ~UnwinderFromPid() = default;
+
+  bool Init();
+
+  void Unwind(const std::vector<std::string>* initial_map_names_to_skip = nullptr,
+              const std::vector<std::string>* map_suffixes_to_ignore = nullptr) override;
+
+ protected:
+  pid_t pid_;
+  std::unique_ptr<Maps> maps_ptr_;
+  std::unique_ptr<JitDebug> jit_debug_ptr_;
+  std::unique_ptr<DexFiles> dex_files_ptr_;
+  bool initted_ = false;
+};
+
+class ThreadUnwinder : public UnwinderFromPid {
+ public:
+  explicit ThreadUnwinder(size_t max_frames);
+  ThreadUnwinder(size_t max_frames, const ThreadUnwinder* unwinder);
+  virtual ~ThreadUnwinder() = default;
+
+  void SetObjects(ThreadUnwinder* unwinder);
+
+  void Unwind(const std::vector<std::string>*, const std::vector<std::string>*) override {}
+
+  void UnwindWithSignal(int signal, pid_t tid,
+                        const std::vector<std::string>* initial_map_names_to_skip = nullptr,
+                        const std::vector<std::string>* map_suffixes_to_ignore = nullptr);
+
+ protected:
+  ThreadEntry* SendSignalToThread(int signal, pid_t tid);
+};
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_UNWINDER_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/UserArm.h

@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef _LIBUNWINDSTACK_USER_ARM_H
+#define _LIBUNWINDSTACK_USER_ARM_H
+
+namespace unwindstack {
+
+struct arm_user_regs {
+  uint32_t regs[18];
+};
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_USER_ARM_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/UserArm64.h

@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef _LIBUNWINDSTACK_USER_ARM64_H
+#define _LIBUNWINDSTACK_USER_ARM64_H
+
+namespace unwindstack {
+
+struct arm64_user_regs {
+  uint64_t regs[31];
+  uint64_t sp;
+  uint64_t pc;
+  uint64_t pstate;
+};
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_USER_ARM64_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/UserX86.h

@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef _LIBUNWINDSTACK_USER_X86_H
+#define _LIBUNWINDSTACK_USER_X86_H
+
+namespace unwindstack {
+
+struct x86_user_regs {
+  uint32_t ebx;
+  uint32_t ecx;
+  uint32_t edx;
+  uint32_t esi;
+  uint32_t edi;
+  uint32_t ebp;
+  uint32_t eax;
+  uint32_t xds;
+  uint32_t xes;
+  uint32_t xfs;
+  uint32_t xgs;
+  uint32_t orig_eax;
+  uint32_t eip;
+  uint32_t xcs;
+  uint32_t eflags;
+  uint32_t esp;
+  uint32_t xss;
+};
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_USER_X86_H

thirdparty/sentry-native/external/libunwindstack-ndk/include/unwindstack/UserX86_64.h

@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef _LIBUNWINDSTACK_USER_X86_64_H
+#define _LIBUNWINDSTACK_USER_X86_64_H
+
+namespace unwindstack {
+
+struct x86_64_user_regs {
+  uint64_t r15;
+  uint64_t r14;
+  uint64_t r13;
+  uint64_t r12;
+  uint64_t rbp;
+  uint64_t rbx;
+  uint64_t r11;
+  uint64_t r10;
+  uint64_t r9;
+  uint64_t r8;
+  uint64_t rax;
+  uint64_t rcx;
+  uint64_t rdx;
+  uint64_t rsi;
+  uint64_t rdi;
+  uint64_t orig_rax;
+  uint64_t rip;
+  uint64_t cs;
+  uint64_t eflags;
+  uint64_t rsp;
+  uint64_t ss;
+  uint64_t fs_base;
+  uint64_t gs_base;
+  uint64_t ds;
+  uint64_t es;
+  uint64_t fs;
+  uint64_t gs;
+};
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_USER_X86_64_H