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https://github.com/Gericom/teak-llvm.git
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dcff3961c2
This helps to detect and report parsing errors better. The patch follows the ideas of LLDB's patches D59370 and D59381. It adds tests for valid and some invalid cases. More checks and tests to come. Note that the patch fixes validation of the Length field because the value does not include the field itself. The existing users are updated to show the error messages. Differential Revision: https://reviews.llvm.org/D71875
76 lines
2.7 KiB
C++
76 lines
2.7 KiB
C++
//===- llvm/unittest/DebugInfo/DWARFDebugArangeSetTest.cpp-----------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/DebugInfo/DWARF/DWARFDebugArangeSet.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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namespace {
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template <size_t SecSize>
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void ExpectExtractError(const char (&SecDataRaw)[SecSize],
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const char *ErrorMessage) {
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DataExtractor Extractor(StringRef(SecDataRaw, SecSize - 1),
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/* IsLittleEndian = */ true,
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/* AddressSize = */ 4);
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DWARFDebugArangeSet Set;
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uint64_t Offset = 0;
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Error E = Set.extract(Extractor, &Offset);
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ASSERT_TRUE(E.operator bool());
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EXPECT_STREQ(ErrorMessage, toString(std::move(E)).c_str());
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}
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TEST(DWARFDebugArangeSet, LengthExceedsSectionSize) {
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static const char DebugArangesSecRaw[] =
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"\x15\x00\x00\x00" // The length exceeds the section boundaries
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"\x02\x00" // Version
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"\x00\x00\x00\x00" // Debug Info Offset
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"\x04" // Address Size
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"\x00" // Segment Selector Size
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"\x00\x00\x00\x00" // Padding
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"\x00\x00\x00\x00" // Termination tuple
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"\x00\x00\x00\x00";
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ExpectExtractError(
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DebugArangesSecRaw,
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"the length of address range table at offset 0x0 exceeds section size");
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}
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TEST(DWARFDebugArangeSet, UnsupportedAddressSize) {
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static const char DebugArangesSecRaw[] =
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"\x0c\x00\x00\x00" // Length
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"\x02\x00" // Version
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"\x00\x00\x00\x00" // Debug Info Offset
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"\x02" // Address Size (not supported)
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"\x00" // Segment Selector Size
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// No padding
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"\x00\x00\x00\x00"; // Termination tuple
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ExpectExtractError(
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DebugArangesSecRaw,
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"address range table at offset 0x0 has unsupported address size: 2 "
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"(4 and 8 supported)");
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}
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TEST(DWARFDebugArangeSet, NoTerminationEntry) {
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static const char DebugArangesSecRaw[] =
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"\x14\x00\x00\x00" // Length
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"\x02\x00" // Version
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"\x00\x00\x00\x00" // Debug Info Offset
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"\x04" // Address Size
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"\x00" // Segment Selector Size
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"\x00\x00\x00\x00" // Padding
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"\x00\x00\x00\x00" // Entry: Address
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"\x01\x00\x00\x00" // Length
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; // No termination tuple
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ExpectExtractError(
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DebugArangesSecRaw,
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"address range table at offset 0x0 is not terminated by null entry");
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}
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} // end anonymous namespace
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