diff options
Diffstat (limited to 'unittests/tools/llvm-cfi-verify/FileAnalysis.cpp')
| -rw-r--r-- | unittests/tools/llvm-cfi-verify/FileAnalysis.cpp | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/unittests/tools/llvm-cfi-verify/FileAnalysis.cpp b/unittests/tools/llvm-cfi-verify/FileAnalysis.cpp index 0df468e8995..00346ab5a14 100644 --- a/unittests/tools/llvm-cfi-verify/FileAnalysis.cpp +++ b/unittests/tools/llvm-cfi-verify/FileAnalysis.cpp @@ -64,6 +64,7 @@ public: class BasicFileAnalysisTest : public ::testing::Test { protected: virtual void SetUp() { + IgnoreDWARFFlag = true; SuccessfullyInitialised = true; if (auto Err = Analysis.initialiseDisassemblyMembers()) { handleAllErrors(std::move(Err), [&](const UnsupportedDisassembly &E) { @@ -650,7 +651,60 @@ TEST_F(BasicFileAnalysisTest, CFIProtectionComplexExample) { 0x0f, 0x0b, // 22: ud2 }, 0xDEADBEEF); + uint64_t PrevSearchLengthForUndef = SearchLengthForUndef; + SearchLengthForUndef = 5; EXPECT_FALSE(Analysis.isIndirectInstructionCFIProtected(0xDEADBEEF + 9)); + SearchLengthForUndef = PrevSearchLengthForUndef; +} + +TEST_F(BasicFileAnalysisTest, UndefSearchLengthOneTest) { + Analysis.parseSectionContents( + { + 0x77, 0x0d, // 0x688118: ja 0x688127 [+12] + 0x48, 0x89, 0xdf, // 0x68811a: mov %rbx, %rdi + 0xff, 0xd0, // 0x68811d: callq *%rax + 0x48, 0x89, 0xdf, // 0x68811f: mov %rbx, %rdi + 0xe8, 0x09, 0x00, 0x00, 0x00, // 0x688122: callq 0x688130 + 0x0f, 0x0b, // 0x688127: ud2 + }, + 0x688118); + uint64_t PrevSearchLengthForUndef = SearchLengthForUndef; + SearchLengthForUndef = 1; + EXPECT_TRUE(Analysis.isIndirectInstructionCFIProtected(0x68811d)); + SearchLengthForUndef = PrevSearchLengthForUndef; +} + +TEST_F(BasicFileAnalysisTest, UndefSearchLengthOneTestFarAway) { + Analysis.parseSectionContents( + { + 0x74, 0x73, // 0x7759eb: je 0x775a60 + 0xe9, 0x1c, 0x04, 0x00, 0x00, 0x00, // 0x7759ed: jmpq 0x775e0e + }, + 0x7759eb); + + Analysis.parseSectionContents( + { + 0x0f, 0x85, 0xb2, 0x03, 0x00, 0x00, // 0x775a56: jne 0x775e0e + 0x48, 0x83, 0xc3, 0xf4, // 0x775a5c: add $0xfffffffffffffff4,%rbx + 0x48, 0x8b, 0x7c, 0x24, 0x10, // 0x775a60: mov 0x10(%rsp),%rdi + 0x48, 0x89, 0xde, // 0x775a65: mov %rbx,%rsi + 0xff, 0xd1, // 0x775a68: callq *%rcx + }, + 0x775a56); + + Analysis.parseSectionContents( + { + 0x0f, 0x0b, // 0x775e0e: ud2 + }, + 0x775e0e); + uint64_t PrevSearchLengthForUndef = SearchLengthForUndef; + SearchLengthForUndef = 1; + EXPECT_FALSE(Analysis.isIndirectInstructionCFIProtected(0x775a68)); + SearchLengthForUndef = 2; + EXPECT_TRUE(Analysis.isIndirectInstructionCFIProtected(0x775a68)); + SearchLengthForUndef = 3; + EXPECT_TRUE(Analysis.isIndirectInstructionCFIProtected(0x775a68)); + SearchLengthForUndef = PrevSearchLengthForUndef; } } // anonymous namespace |