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Merge "Add minimal support for Dwarf 5."

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am: e44bf1a4a2

Change-Id: I7cac4a4fbc8d5e77c9642cf2909c962bb12bad7c
This commit is contained in:
Christopher Ferris 2019-04-02 07:47:13 -07:00 committed by android-build-merger
commit b0f5022fad
2 changed files with 24 additions and 7 deletions
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4
libunwindstack/DwarfSection.cpp
View file

@ -138,7 +138,7 @@ bool DwarfSectionImpl<AddressType>::FillInCie(DwarfCie* cie) {
return false;
}
if (cie->version != 1 && cie->version != 3 && cie->version != 4) {
if (cie->version != 1 && cie->version != 3 && cie->version != 4 && cie->version != 5) {
// Unrecognized version.
last_error_.code = DWARF_ERROR_UNSUPPORTED_VERSION;
return false;
@ -155,7 +155,7 @@ bool DwarfSectionImpl<AddressType>::FillInCie(DwarfCie* cie) {
cie->augmentation_string.push_back(aug_value);
} while (aug_value != '\0');
if (cie->version == 4) {
if (cie->version == 4 || cie->version == 5) {
// Skip the Address Size field since we only use it for validation.
memory_.set_cur_offset(memory_.cur_offset() + 1);

27
libunwindstack/tests/DwarfDebugFrameTest.cpp
View file

@ -550,6 +550,22 @@ TYPED_TEST_P(DwarfDebugFrameTest, GetCieFromOffset64_version4) {
VerifyCieVersion(cie, 4, 10, DW_EH_PE_sdata8, 0x181, 0x1c, 0x10c);
}
TYPED_TEST_P(DwarfDebugFrameTest, GetCieFromOffset32_version5) {
SetCie32(&this->memory_, 0x5000, 0x100, std::vector<uint8_t>{5, '\0', 0, 10, 4, 8, 0x81, 3});
const DwarfCie* cie = this->debug_frame_->GetCieFromOffset(0x5000);
EXPECT_EQ(DWARF_ERROR_NONE, this->debug_frame_->LastErrorCode());
ASSERT_TRUE(cie != nullptr);
VerifyCieVersion(cie, 5, 10, DW_EH_PE_sdata4, 0x181, 0x10, 0x104);
}
TYPED_TEST_P(DwarfDebugFrameTest, GetCieFromOffset64_version5) {
SetCie64(&this->memory_, 0x5000, 0x100, std::vector<uint8_t>{5, '\0', 0, 10, 4, 8, 0x81, 3});
const DwarfCie* cie = this->debug_frame_->GetCieFromOffset(0x5000);
EXPECT_EQ(DWARF_ERROR_NONE, this->debug_frame_->LastErrorCode());
ASSERT_TRUE(cie != nullptr);
VerifyCieVersion(cie, 5, 10, DW_EH_PE_sdata8, 0x181, 0x1c, 0x10c);
}
TYPED_TEST_P(DwarfDebugFrameTest, GetCieFromOffset_version_invalid) {
SetCie32(&this->memory_, 0x5000, 0x100, std::vector<uint8_t>{0, '\0', 1, 2, 3, 4, 5, 6, 7});
ASSERT_TRUE(this->debug_frame_->GetCieFromOffset(0x5000) == nullptr);
@ -558,10 +574,10 @@ TYPED_TEST_P(DwarfDebugFrameTest, GetCieFromOffset_version_invalid) {
ASSERT_TRUE(this->debug_frame_->GetCieFromOffset(0x6000) == nullptr);
EXPECT_EQ(DWARF_ERROR_UNSUPPORTED_VERSION, this->debug_frame_->LastErrorCode());
SetCie32(&this->memory_, 0x7000, 0x100, std::vector<uint8_t>{5, '\0', 1, 2, 3, 4, 5, 6, 7});
SetCie32(&this->memory_, 0x7000, 0x100, std::vector<uint8_t>{6, '\0', 1, 2, 3, 4, 5, 6, 7});
ASSERT_TRUE(this->debug_frame_->GetCieFromOffset(0x7000) == nullptr);
EXPECT_EQ(DWARF_ERROR_UNSUPPORTED_VERSION, this->debug_frame_->LastErrorCode());
SetCie64(&this->memory_, 0x8000, 0x100, std::vector<uint8_t>{5, '\0', 1, 2, 3, 4, 5, 6, 7});
SetCie64(&this->memory_, 0x8000, 0x100, std::vector<uint8_t>{6, '\0', 1, 2, 3, 4, 5, 6, 7});
ASSERT_TRUE(this->debug_frame_->GetCieFromOffset(0x8000) == nullptr);
EXPECT_EQ(DWARF_ERROR_UNSUPPORTED_VERSION, this->debug_frame_->LastErrorCode());
}
@ -803,9 +819,10 @@ REGISTER_TYPED_TEST_CASE_P(
GetFdeFromPc64_not_in_section, GetCieFde32, GetCieFde64, GetCieFromOffset32_cie_cached,
GetCieFromOffset64_cie_cached, GetCieFromOffset32_version1, GetCieFromOffset64_version1,
GetCieFromOffset32_version3, GetCieFromOffset64_version3, GetCieFromOffset32_version4,
GetCieFromOffset64_version4, GetCieFromOffset_version_invalid, GetCieFromOffset32_augment,
GetCieFromOffset64_augment, GetFdeFromOffset32_augment, GetFdeFromOffset64_augment,
GetFdeFromOffset32_lsda_address, GetFdeFromOffset64_lsda_address, GetFdeFromPc_interleaved);
GetCieFromOffset64_version4, GetCieFromOffset32_version5, GetCieFromOffset64_version5,
GetCieFromOffset_version_invalid, GetCieFromOffset32_augment, GetCieFromOffset64_augment,
GetFdeFromOffset32_augment, GetFdeFromOffset64_augment, GetFdeFromOffset32_lsda_address,
GetFdeFromOffset64_lsda_address, GetFdeFromPc_interleaved);
typedef ::testing::Types<uint32_t, uint64_t> DwarfDebugFrameTestTypes;
INSTANTIATE_TYPED_TEST_CASE_P(, DwarfDebugFrameTest, DwarfDebugFrameTestTypes);