[PATCH] D67276: [DWARF] Add a unit test for DWARFUnit::getLength().
Igor Kudrin via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue Sep 10 02:04:07 PDT 2019
This revision was automatically updated to reflect the committed changes.
Closed by commit rL371499: [DWARF] Add a unit test for DWARFUnit::getLength(). (authored by ikudrin, committed by ).
Changed prior to commit:
https://reviews.llvm.org/D67276?vs=219093&id=219495#toc
Repository:
rL LLVM
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D67276/new/
https://reviews.llvm.org/D67276
Files:
llvm/trunk/unittests/DebugInfo/DWARF/DWARFDebugInfoTest.cpp
Index: llvm/trunk/unittests/DebugInfo/DWARF/DWARFDebugInfoTest.cpp
===================================================================
--- llvm/trunk/unittests/DebugInfo/DWARF/DWARFDebugInfoTest.cpp
+++ llvm/trunk/unittests/DebugInfo/DWARF/DWARFDebugInfoTest.cpp
@@ -3158,4 +3158,46 @@
AssertRangesIntersect(Ranges, {{0x20, 0x21}, {0x2f, 0x31}});
}
+TEST(DWARFDebugInfo, TestDWARF64UnitLength) {
+ static const char DebugInfoSecRaw[] =
+ "\xff\xff\xff\xff" // DWARF64 mark
+ "\x88\x77\x66\x55\x44\x33\x22\x11" // Length
+ "\x05\x00" // Version
+ "\x01" // DW_UT_compile
+ "\x04" // Address size
+ "\0\0\0\0\0\0\0\0"; // Offset Into Abbrev. Sec.
+ StringMap<std::unique_ptr<MemoryBuffer>> Sections;
+ Sections.insert(std::make_pair(
+ "debug_info", MemoryBuffer::getMemBuffer(
+ StringRef(DebugInfoSecRaw, sizeof(DebugInfoSecRaw)))));
+ auto Context = DWARFContext::create(Sections, /* AddrSize = */ 4,
+ /* isLittleEndian = */ true);
+ const auto &Obj = Context->getDWARFObj();
+ Obj.forEachInfoSections([&](const DWARFSection &Sec) {
+ DWARFUnitHeader Header;
+ DWARFDataExtractor Data(Obj, Sec, /* IsLittleEndian = */ true,
+ /* AddressSize = */ 4);
+ uint64_t Offset = 0;
+ EXPECT_FALSE(Header.extract(*Context, Data, &Offset));
+ // Header.extract() returns false because there is not enough space
+ // in the section for the declared length. Anyway, we can check that
+ // the properties are read correctly.
+ ASSERT_EQ(DwarfFormat::DWARF64, Header.getFormat());
+ ASSERT_EQ(0x1122334455667788ULL, Header.getLength());
+ ASSERT_EQ(5, Header.getVersion());
+ ASSERT_EQ(DW_UT_compile, Header.getUnitType());
+ ASSERT_EQ(4, Header.getAddressByteSize());
+
+ // Check that the length can be correctly read in the unit class.
+ DWARFUnitVector DummyUnitVector;
+ DWARFSection DummySec;
+ DWARFCompileUnit CU(*Context, Sec, Header, /* DA = */ 0, /* RS = */ 0,
+ /* LocSection = */ 0, /* SS = */ StringRef(),
+ /* SOS = */ DummySec, /* AOS = */ 0,
+ /* LS = */ DummySec, /* LE = */ true,
+ /* isDWO= */ false, DummyUnitVector);
+ ASSERT_EQ(0x1122334455667788ULL, CU.getLength());
+ });
+}
+
} // end anonymous namespace
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