77 lines
3.3 KiB
C++
77 lines
3.3 KiB
C++
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//===- DWARFListTableTest.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/DWARFListTable.h"
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#include "llvm/Testing/Support/Error.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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TEST(DWARFListTableHeader, TruncatedLength) {
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static const char SecData[] = "\x33\x22\x11"; // Truncated DWARF32 length
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DWARFDataExtractor Extractor(StringRef(SecData, sizeof(SecData) - 1),
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/*isLittleEndian=*/true,
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/*AddrSize=*/4);
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DWARFListTableHeader Header(/*SectionName=*/".debug_rnglists",
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/*ListTypeString=*/"range");
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uint64_t Offset = 0;
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EXPECT_THAT_ERROR(
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Header.extract(Extractor, &Offset),
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FailedWithMessage(
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"parsing .debug_rnglists table at offset 0x0: unexpected end of data "
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"at offset 0x3 while reading [0x0, 0x4)"));
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// length() is expected to return 0 to indicate that the unit length field
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// can not be parsed and so we can not, for example, skip the current set
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// to continue parsing from the next one.
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EXPECT_EQ(Header.length(), 0u);
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}
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TEST(DWARFListTableHeader, TruncatedLengthDWARF64) {
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static const char SecData[] =
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"\xff\xff\xff\xff" // DWARF64 mark
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"\x55\x44\x33\x22\x11"; // Truncated DWARF64 length
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DWARFDataExtractor Extractor(StringRef(SecData, sizeof(SecData) - 1),
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/*isLittleEndian=*/true,
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/*AddrSize=*/4);
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DWARFListTableHeader Header(/*SectionName=*/".debug_rnglists",
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/*ListTypeString=*/"range");
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uint64_t Offset = 0;
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EXPECT_THAT_ERROR(
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Header.extract(Extractor, &Offset),
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FailedWithMessage(
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"parsing .debug_rnglists table at offset 0x0: unexpected end of data "
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"at offset 0x9 while reading [0x4, 0xc)"));
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// length() is expected to return 0 to indicate that the unit length field
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// can not be parsed and so we can not, for example, skip the current set
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// to continue parsing from the next one.
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EXPECT_EQ(Header.length(), 0u);
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}
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TEST(DWARFListTableHeader, TruncatedHeader) {
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static const char SecData[] = "\x02\x00\x00\x00" // Length
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"\x05\x00"; // Version
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DWARFDataExtractor Extractor(StringRef(SecData, sizeof(SecData) - 1),
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/*isLittleEndian=*/true,
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/*AddrSize=*/4);
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DWARFListTableHeader Header(/*SectionName=*/".debug_rnglists",
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/*ListTypeString=*/"range");
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uint64_t Offset = 0;
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EXPECT_THAT_ERROR(
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Header.extract(Extractor, &Offset),
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FailedWithMessage(".debug_rnglists table at offset 0x0 has too small "
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"length (0x6) to contain a complete header"));
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// length() is expected to return the full length of the set if the unit
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// length field is read, even if an error occurred during the parsing,
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// to allow skipping the current set and continue parsing from the next one.
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EXPECT_EQ(Header.length(), 6u);
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}
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} // end anonymous namespace
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