llvm/unittests/DebugInfo/DWARF/DWARFAcceleratorTableTest.cpp

   1 //===- DWARFAcceleratorTableTest.cpp --------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "llvm/DebugInfo/DWARF/DWARFAcceleratorTable.h"
  10 #include "llvm/DebugInfo/DWARF/DWARFContext.h"
  11 #include "llvm/Testing/Support/Error.h"
  12 #include "gtest/gtest.h"
  13
  14 using namespace llvm;
  15
  16 static Error ExtractDebugNames(StringRef NamesSecData, StringRef StrSecData) {
  17   DWARFDataExtractor NamesExtractor(NamesSecData,
  18                                     /*isLittleEndian=*/true,
  19                                     /*AddrSize=*/4);
  20   DataExtractor StrExtractor(StrSecData,
  21                              /*isLittleEndian=*/true,
  22                              /*AddrSize=*/4);
  23   DWARFDebugNames Table(NamesExtractor, StrExtractor);
  24   return Table.extract();
  25 }
  26
  27 namespace {
  28
  29 TEST(DWARFDebugNames, ReservedUnitLength) {
  30   static const char NamesSecData[64] =
  31       "\xf0\xff\xff\xff"; // Reserved unit length value
  32   EXPECT_THAT_ERROR(
  33       ExtractDebugNames(StringRef(NamesSecData, sizeof(NamesSecData)),
  34                         StringRef()),
  35       FailedWithMessage("parsing .debug_names header at 0x0: unsupported "
  36                         "reserved unit length of value 0xfffffff0"));
  37 }
  38
  39 TEST(DWARFDebugNames, TooSmallForDWARF64) {
  40   // DWARF64 header takes at least 44 bytes.
  41   static const char NamesSecData[43] = "\xff\xff\xff\xff"; // DWARF64 mark
  42   EXPECT_THAT_ERROR(
  43       ExtractDebugNames(StringRef(NamesSecData, sizeof(NamesSecData)),
  44                         StringRef()),
  45       FailedWithMessage("parsing .debug_names header at 0x0: unexpected end of "
  46                         "data at offset 0x2b while reading [0x28, 0x2c)"));
  47 }
  48
  49 } // end anonymous namespace