diff options
| -rw-r--r-- | lld/unittests/MachOTests/MachONormalizedFileToAtomsTests.cpp | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/lld/unittests/MachOTests/MachONormalizedFileToAtomsTests.cpp b/lld/unittests/MachOTests/MachONormalizedFileToAtomsTests.cpp index cf9a845c4b2..e90c0979d81 100644 --- a/lld/unittests/MachOTests/MachONormalizedFileToAtomsTests.cpp +++ b/lld/unittests/MachOTests/MachONormalizedFileToAtomsTests.cpp @@ -97,3 +97,41 @@ TEST(ToAtomsTest, basic_obj_x86_64) { EXPECT_TRUE(atom4->name().equals("_undef")); EXPECT_EQ(lld::Atom::definitionUndefined, atom4->definition()); } + +TEST(ToAtomsTest, reservedUnitLength) { + static const uint8_t debugInfoWithReservedLengthContent[12] = { + 0xf0, 0xff, 0xff, 0xff // Reserved length value + }; + static const uint8_t debugInfoWithValidBigLengthContent[12] = { + 0xef, 0xff, 0xff, 0xff, // The maximum valid length value for DWARF32 + 0x00, 0x00 // Wrong version + }; + static const uint8_t debugAbbrevDummyContent[] = {0x00}; + + NormalizedFile fReservedLength, fValidBigLength; + fReservedLength.arch = lld::MachOLinkingContext::arch_x86; + fValidBigLength.arch = lld::MachOLinkingContext::arch_x86; + Section section; + section.segmentName = "__DWARF"; + section.sectionName = "__debug_info"; + section.content = llvm::makeArrayRef(debugInfoWithReservedLengthContent); + fReservedLength.sections.push_back(section); + section.content = llvm::makeArrayRef(debugInfoWithValidBigLengthContent); + fValidBigLength.sections.push_back(section); + section.sectionName = "__debug_abbrev"; + section.content = llvm::makeArrayRef(debugAbbrevDummyContent); + fReservedLength.sections.push_back(section); + fValidBigLength.sections.push_back(section); + + auto resultReservedLength = normalizedToAtoms(fReservedLength, "foo", false); + auto resultValidBigLength = normalizedToAtoms(fValidBigLength, "foo", false); + + // Both cases should return errors, but different. + ASSERT_FALSE(resultReservedLength); + ASSERT_FALSE(resultValidBigLength); + + EXPECT_STREQ("Malformed DWARF in foo", + toString(resultReservedLength.takeError()).c_str()); + EXPECT_STREQ("Unsupported DWARF version in foo", + toString(resultValidBigLength.takeError()).c_str()); +} |
