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Commit 3caf1413 authored by Christopher Ferris's avatar Christopher Ferris Committed by Automerger Merge Worker
Browse files

Merge "Set warning for dex pc not in map." am: 278f11b5 am: e694f34b am: d8f93cdd 

Original change: https://android-review.googlesource.com/c/platform/system/core/+/1396068

Change-Id: I9a60e5579c6760f748b82d2b4c82eb521623bc6c
parents 77ce15e1 d8f93cdd

libunwindstack/Unwinder.cpp

+2 −1
Original line number Diff line number Diff line
@@ -75,7 +75,7 @@ void Unwinder::FillInDexFrame() { 
    frame->rel_pc = dex_pc - info->start;

  } else {

    frame->rel_pc = dex_pc;

    return;

    warnings_ |= WARNING_DEX_PC_NOT_IN_MAP;

  }



  if (!resolve_names_) {
@@ -142,6 +142,7 @@ static bool ShouldStop(const std::vector<std::string>* map_suffixes_to_ignore, 
void Unwinder::Unwind(const std::vector<std::string>* initial_map_names_to_skip,

                      const std::vector<std::string>* map_suffixes_to_ignore) {

  frames_.clear();

  warnings_ = WARNING_NONE;

  last_error_.code = ERROR_NONE;

  last_error_.address = 0;

  elf_from_memory_not_file_ = false;

libunwindstack/include/unwindstack/Error.h

+7 −0
Original line number Diff line number Diff line
@@ -21,6 +21,13 @@ 


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.

libunwindstack/include/unwindstack/Unwinder.h

+2 −0
Original line number Diff line number Diff line
@@ -113,6 +113,7 @@ class Unwinder { 


  ErrorCode LastErrorCode() { return 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
@@ -141,6 +142,7 @@ class Unwinder { 
  // 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_;

};



class UnwinderFromPid : public Unwinder {

libunwindstack/tests/UnwinderTest.cpp

+28 −0
Original line number Diff line number Diff line
@@ -168,6 +168,7 @@ TEST_F(UnwinderTest, multiple_frames) { 
  Unwinder unwinder(64, maps_.get(), &regs_, process_memory_);

  unwinder.Unwind();

  EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode());

  EXPECT_EQ(WARNING_NONE, unwinder.warnings());

  EXPECT_FALSE(unwinder.elf_from_memory_not_file());



  ASSERT_EQ(3U, unwinder.NumFrames());
@@ -233,6 +234,7 @@ TEST_F(UnwinderTest, multiple_frames_dont_resolve_names) { 
  unwinder.SetResolveNames(false);

  unwinder.Unwind();

  EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode());

  EXPECT_EQ(WARNING_NONE, unwinder.warnings());

  EXPECT_FALSE(unwinder.elf_from_memory_not_file());



  ASSERT_EQ(3U, unwinder.NumFrames());
@@ -293,6 +295,7 @@ TEST_F(UnwinderTest, non_zero_load_bias) { 
  Unwinder unwinder(64, maps_.get(), &regs_, process_memory_);

  unwinder.Unwind();

  EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode());

  EXPECT_EQ(WARNING_NONE, unwinder.warnings());

  EXPECT_FALSE(unwinder.elf_from_memory_not_file());



  ASSERT_EQ(1U, unwinder.NumFrames());
@@ -323,6 +326,7 @@ TEST_F(UnwinderTest, non_zero_elf_offset) { 
  Unwinder unwinder(64, maps_.get(), &regs_, process_memory_);

  unwinder.Unwind();

  EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode());

  EXPECT_EQ(WARNING_NONE, unwinder.warnings());

  EXPECT_FALSE(unwinder.elf_from_memory_not_file());



  ASSERT_EQ(1U, unwinder.NumFrames());
@@ -353,6 +357,7 @@ TEST_F(UnwinderTest, non_zero_map_offset) { 
  Unwinder unwinder(64, maps_.get(), &regs_, process_memory_);

  unwinder.Unwind();

  EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode());

  EXPECT_EQ(WARNING_NONE, unwinder.warnings());

  EXPECT_FALSE(unwinder.elf_from_memory_not_file());



  ASSERT_EQ(1U, unwinder.NumFrames());
@@ -384,6 +389,7 @@ TEST_F(UnwinderTest, disable_embedded_soname) { 
  unwinder.SetEmbeddedSoname(false);

  unwinder.Unwind();

  EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode());

  EXPECT_EQ(WARNING_NONE, unwinder.warnings());

  EXPECT_FALSE(unwinder.elf_from_memory_not_file());



  ASSERT_EQ(1U, unwinder.NumFrames());
@@ -421,6 +427,7 @@ TEST_F(UnwinderTest, no_frames_after_finished) { 
  Unwinder unwinder(64, maps_.get(), &regs_, process_memory_);

  unwinder.Unwind();

  EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode());

  EXPECT_EQ(WARNING_NONE, unwinder.warnings());

  EXPECT_FALSE(unwinder.elf_from_memory_not_file());



  ASSERT_EQ(1U, unwinder.NumFrames());
@@ -454,6 +461,7 @@ TEST_F(UnwinderTest, max_frames) { 
  Unwinder unwinder(20, maps_.get(), &regs_, process_memory_);

  unwinder.Unwind();

  EXPECT_EQ(ERROR_MAX_FRAMES_EXCEEDED, unwinder.LastErrorCode());

  EXPECT_EQ(WARNING_NONE, unwinder.warnings());

  EXPECT_FALSE(unwinder.elf_from_memory_not_file());



  ASSERT_EQ(20U, unwinder.NumFrames());
@@ -497,6 +505,7 @@ TEST_F(UnwinderTest, verify_frames_skipped) { 
  std::vector<std::string> skip_libs{"libunwind.so", "libanother.so"};

  unwinder.Unwind(&skip_libs);

  EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode());

  EXPECT_EQ(WARNING_NONE, unwinder.warnings());

  EXPECT_FALSE(unwinder.elf_from_memory_not_file());



  ASSERT_EQ(3U, unwinder.NumFrames());
@@ -559,6 +568,7 @@ TEST_F(UnwinderTest, sp_not_in_map) { 
  Unwinder unwinder(64, maps_.get(), &regs_, process_memory_);

  unwinder.Unwind();

  EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode());

  EXPECT_EQ(WARNING_NONE, unwinder.warnings());

  EXPECT_FALSE(unwinder.elf_from_memory_not_file());



  ASSERT_EQ(2U, unwinder.NumFrames());
@@ -607,6 +617,7 @@ TEST_F(UnwinderTest, pc_in_device_stops_unwind) { 
  Unwinder unwinder(64, maps_.get(), &regs_, process_memory_);

  unwinder.Unwind();

  EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode());

  EXPECT_EQ(WARNING_NONE, unwinder.warnings());

  EXPECT_FALSE(unwinder.elf_from_memory_not_file());



  ASSERT_EQ(1U, unwinder.NumFrames());
@@ -627,6 +638,7 @@ TEST_F(UnwinderTest, sp_in_device_stops_unwind) { 
  Unwinder unwinder(64, maps_.get(), &regs_, process_memory_);

  unwinder.Unwind();

  EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode());

  EXPECT_EQ(WARNING_NONE, unwinder.warnings());

  EXPECT_FALSE(unwinder.elf_from_memory_not_file());



  ASSERT_EQ(1U, unwinder.NumFrames());
@@ -642,6 +654,7 @@ TEST_F(UnwinderTest, pc_without_map) { 
  Unwinder unwinder(64, maps_.get(), &regs_, process_memory_);

  unwinder.Unwind();

  EXPECT_EQ(ERROR_INVALID_MAP, unwinder.LastErrorCode());

  EXPECT_EQ(WARNING_NONE, unwinder.warnings());

  EXPECT_FALSE(unwinder.elf_from_memory_not_file());



  ASSERT_EQ(1U, unwinder.NumFrames());
@@ -679,6 +692,7 @@ TEST_F(UnwinderTest, speculative_frame) { 
  Unwinder unwinder(64, maps_.get(), &regs_, process_memory_);

  unwinder.Unwind();

  EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode());

  EXPECT_EQ(WARNING_NONE, unwinder.warnings());

  EXPECT_FALSE(unwinder.elf_from_memory_not_file());



  ASSERT_EQ(3U, unwinder.NumFrames());
@@ -745,6 +759,7 @@ TEST_F(UnwinderTest, speculative_frame_removed) { 
  Unwinder unwinder(64, maps_.get(), &regs_, process_memory_);

  unwinder.Unwind();

  EXPECT_EQ(ERROR_INVALID_MAP, unwinder.LastErrorCode());

  EXPECT_EQ(WARNING_NONE, unwinder.warnings());

  EXPECT_FALSE(unwinder.elf_from_memory_not_file());



  ASSERT_EQ(2U, unwinder.NumFrames());
@@ -795,6 +810,7 @@ TEST_F(UnwinderTest, speculative_frame_not_removed_pc_bad) { 
  Unwinder unwinder(64, maps_.get(), &regs_, process_memory_);

  unwinder.Unwind();

  EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode());

  EXPECT_EQ(WARNING_NONE, unwinder.warnings());

  EXPECT_FALSE(unwinder.elf_from_memory_not_file());



  ASSERT_EQ(2U, unwinder.NumFrames());
@@ -843,6 +859,7 @@ TEST_F(UnwinderTest, speculative_frame_check_with_no_frames) { 
  std::vector<std::string> skip_names{"libanother.so"};

  unwinder.Unwind(&skip_names);

  EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode());

  EXPECT_EQ(WARNING_NONE, unwinder.warnings());

  EXPECT_FALSE(unwinder.elf_from_memory_not_file());



  ASSERT_EQ(0U, unwinder.NumFrames());
@@ -866,6 +883,7 @@ TEST_F(UnwinderTest, map_ignore_suffixes) { 
  std::vector<std::string> suffixes{"oat"};

  unwinder.Unwind(nullptr, &suffixes);

  EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode());

  EXPECT_EQ(WARNING_NONE, unwinder.warnings());

  EXPECT_FALSE(unwinder.elf_from_memory_not_file());



  ASSERT_EQ(2U, unwinder.NumFrames());
@@ -925,6 +943,7 @@ TEST_F(UnwinderTest, sp_pc_do_not_change) { 
  Unwinder unwinder(64, maps_.get(), &regs_, process_memory_);

  unwinder.Unwind();

  EXPECT_EQ(ERROR_REPEATED_FRAME, unwinder.LastErrorCode());

  EXPECT_EQ(WARNING_NONE, unwinder.warnings());

  EXPECT_FALSE(unwinder.elf_from_memory_not_file());



  ASSERT_EQ(3U, unwinder.NumFrames());
@@ -984,6 +1003,7 @@ TEST_F(UnwinderTest, dex_pc_in_map) { 
  Unwinder unwinder(64, maps_.get(), &regs_, process_memory_);

  unwinder.Unwind();

  EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode());

  EXPECT_EQ(WARNING_NONE, unwinder.warnings());

  EXPECT_FALSE(unwinder.elf_from_memory_not_file());



  ASSERT_EQ(2U, unwinder.NumFrames());
@@ -1028,6 +1048,7 @@ TEST_F(UnwinderTest, dex_pc_in_map_non_zero_offset) { 
  Unwinder unwinder(64, maps_.get(), &regs_, process_memory_);

  unwinder.Unwind();

  EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode());

  EXPECT_EQ(WARNING_NONE, unwinder.warnings());

  EXPECT_FALSE(unwinder.elf_from_memory_not_file());



  ASSERT_EQ(2U, unwinder.NumFrames());
@@ -1072,6 +1093,7 @@ TEST_F(UnwinderTest, dex_pc_not_in_map) { 
  Unwinder unwinder(64, maps_.get(), &regs_, process_memory_);

  unwinder.Unwind();

  EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode());

  EXPECT_EQ(WARNING_DEX_PC_NOT_IN_MAP, unwinder.warnings());

  EXPECT_FALSE(unwinder.elf_from_memory_not_file());



  ASSERT_EQ(2U, unwinder.NumFrames());
@@ -1119,6 +1141,7 @@ TEST_F(UnwinderTest, dex_pc_multiple_frames) { 
  Unwinder unwinder(64, maps_.get(), &regs_, process_memory_);

  unwinder.Unwind();

  EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode());

  EXPECT_EQ(WARNING_NONE, unwinder.warnings());

  EXPECT_FALSE(unwinder.elf_from_memory_not_file());



  ASSERT_EQ(3U, unwinder.NumFrames());
@@ -1178,6 +1201,7 @@ TEST_F(UnwinderTest, dex_pc_max_frames) { 
  Unwinder unwinder(1, maps_.get(), &regs_, process_memory_);

  unwinder.Unwind();

  EXPECT_EQ(ERROR_MAX_FRAMES_EXCEEDED, unwinder.LastErrorCode());

  EXPECT_EQ(WARNING_NONE, unwinder.warnings());

  EXPECT_FALSE(unwinder.elf_from_memory_not_file());



  ASSERT_EQ(1U, unwinder.NumFrames());
@@ -1208,6 +1232,7 @@ TEST_F(UnwinderTest, elf_from_memory_not_file) { 
  Unwinder unwinder(64, maps_.get(), &regs_, process_memory_);

  unwinder.Unwind();

  EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode());

  EXPECT_EQ(WARNING_NONE, unwinder.warnings());

  EXPECT_TRUE(unwinder.elf_from_memory_not_file());



  ASSERT_EQ(1U, unwinder.NumFrames());
@@ -1238,6 +1263,7 @@ TEST_F(UnwinderTest, elf_from_memory_but_no_valid_file_with_bracket) { 
  Unwinder unwinder(64, maps_.get(), &regs_, process_memory_);

  unwinder.Unwind();

  EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode());

  EXPECT_EQ(WARNING_NONE, unwinder.warnings());

  EXPECT_FALSE(unwinder.elf_from_memory_not_file());



  ASSERT_EQ(1U, unwinder.NumFrames());
@@ -1268,6 +1294,7 @@ TEST_F(UnwinderTest, elf_from_memory_but_empty_filename) { 
  Unwinder unwinder(64, maps_.get(), &regs_, process_memory_);

  unwinder.Unwind();

  EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode());

  EXPECT_EQ(WARNING_NONE, unwinder.warnings());

  EXPECT_FALSE(unwinder.elf_from_memory_not_file());



  ASSERT_EQ(1U, unwinder.NumFrames());
@@ -1298,6 +1325,7 @@ TEST_F(UnwinderTest, elf_from_memory_but_from_memfd) { 
  Unwinder unwinder(64, maps_.get(), &regs_, process_memory_);

  unwinder.Unwind();

  EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode());

  EXPECT_EQ(WARNING_NONE, unwinder.warnings());

  EXPECT_FALSE(unwinder.elf_from_memory_not_file());



  ASSERT_EQ(1U, unwinder.NumFrames());