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1975 lines
61 KiB
1975 lines
61 KiB
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <elf.h>
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#include <memory>
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#include <gtest/gtest.h>
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#include <unwindstack/ElfInterface.h>
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#include "DwarfEncoding.h"
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#include "ElfInterfaceArm.h"
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#include "ElfFake.h"
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#include "MemoryFake.h"
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#if !defined(PT_ARM_EXIDX)
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#define PT_ARM_EXIDX 0x70000001
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#endif
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#if !defined(EM_AARCH64)
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#define EM_AARCH64 183
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#endif
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#if __has_feature(address_sanitizer)
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// There is a test that tries to allocate a large value, allow it to fail
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// if asan is enabled.
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extern "C" const char* __asan_default_options() {
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return "allocator_may_return_null=1";
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}
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#endif
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namespace unwindstack {
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class ElfInterfaceTest : public ::testing::Test {
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protected:
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void SetUp() override {
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memory_.Clear();
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}
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void SetStringMemory(uint64_t offset, const char* string) {
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memory_.SetMemory(offset, string, strlen(string) + 1);
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}
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template <typename Ehdr, typename Phdr, typename Dyn, typename ElfInterfaceType>
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void SinglePtLoad();
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template <typename Ehdr, typename Phdr, typename Dyn, typename ElfInterfaceType>
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void MultipleExecutablePtLoads();
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template <typename Ehdr, typename Phdr, typename Dyn, typename ElfInterfaceType>
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void MultipleExecutablePtLoadsIncrementsNotSizeOfPhdr();
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template <typename Ehdr, typename Phdr, typename Dyn, typename ElfInterfaceType>
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void NonExecutablePtLoads();
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template <typename Ehdr, typename Phdr, typename Dyn, typename ElfInterfaceType>
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void ManyPhdrs();
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enum SonameTestEnum : uint8_t {
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SONAME_NORMAL,
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SONAME_DTNULL_AFTER,
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SONAME_DTSIZE_SMALL,
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SONAME_MISSING_MAP,
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};
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template <typename Ehdr, typename Phdr, typename Shdr, typename Dyn>
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void SonameInit(SonameTestEnum test_type = SONAME_NORMAL);
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template <typename ElfInterfaceType>
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void Soname();
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template <typename ElfInterfaceType>
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void SonameAfterDtNull();
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template <typename ElfInterfaceType>
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void SonameSize();
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template <typename ElfInterfaceType>
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void SonameMissingMap();
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template <typename ElfType>
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void InitHeadersEhFrameTest();
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template <typename ElfType>
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void InitHeadersDebugFrame();
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template <typename ElfType>
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void InitHeadersEhFrameFail();
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template <typename ElfType>
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void InitHeadersDebugFrameFail();
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template <typename Ehdr, typename Phdr, typename ElfInterfaceType>
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void InitProgramHeadersMalformed();
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template <typename Ehdr, typename Shdr, typename ElfInterfaceType>
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void InitSectionHeadersMalformed();
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template <typename Ehdr, typename Shdr, typename ElfInterfaceType>
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void InitSectionHeadersMalformedSymData();
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template <typename Ehdr, typename Shdr, typename Sym, typename ElfInterfaceType>
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void InitSectionHeaders(uint64_t entry_size);
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template <typename Ehdr, typename Shdr, typename ElfInterfaceType>
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void InitSectionHeadersOffsets();
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template <typename Ehdr, typename Shdr, typename ElfInterfaceType>
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void InitSectionHeadersOffsetsEhFrameSectionBias(uint64_t addr, uint64_t offset,
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int64_t expected_bias);
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template <typename Ehdr, typename Shdr, typename ElfInterfaceType>
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void InitSectionHeadersOffsetsEhFrameHdrSectionBias(uint64_t addr, uint64_t offset,
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int64_t expected_bias);
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template <typename Ehdr, typename Shdr, typename ElfInterfaceType>
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void InitSectionHeadersOffsetsDebugFrameSectionBias(uint64_t addr, uint64_t offset,
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int64_t expected_bias);
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template <typename Ehdr, typename Phdr, typename ElfInterfaceType>
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void CheckGnuEhFrame(uint64_t addr, uint64_t offset, int64_t expected_bias);
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template <typename Sym>
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void InitSym(uint64_t offset, uint32_t value, uint32_t size, uint32_t name_offset,
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uint64_t sym_offset, const char* name);
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template <typename Ehdr, typename Shdr, typename Nhdr, typename ElfInterfaceType>
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void BuildID();
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template <typename Ehdr, typename Shdr, typename Nhdr, typename ElfInterfaceType>
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void BuildIDTwoNotes();
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template <typename Ehdr, typename Shdr, typename Nhdr, typename ElfInterfaceType>
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void BuildIDSectionTooSmallForName();
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template <typename Ehdr, typename Shdr, typename Nhdr, typename ElfInterfaceType>
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void BuildIDSectionTooSmallForDesc();
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template <typename Ehdr, typename Shdr, typename Nhdr, typename ElfInterfaceType>
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void BuildIDSectionTooSmallForHeader();
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template <typename Ehdr, typename Phdr, typename ElfInterfaceType>
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void CheckLoadBiasInFirstPhdr(int64_t load_bias);
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template <typename Ehdr, typename Phdr, typename ElfInterfaceType>
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void CheckLoadBiasInFirstExecPhdr(uint64_t offset, uint64_t vaddr, int64_t load_bias);
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MemoryFake memory_;
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};
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template <typename Sym>
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void ElfInterfaceTest::InitSym(uint64_t offset, uint32_t value, uint32_t size, uint32_t name_offset,
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uint64_t sym_offset, const char* name) {
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Sym sym = {};
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sym.st_info = STT_FUNC;
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sym.st_value = value;
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sym.st_size = size;
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sym.st_name = name_offset;
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sym.st_shndx = SHN_COMMON;
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memory_.SetMemory(offset, &sym, sizeof(sym));
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memory_.SetMemory(sym_offset + name_offset, name, strlen(name) + 1);
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}
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template <typename Ehdr, typename Phdr, typename Dyn, typename ElfInterfaceType>
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void ElfInterfaceTest::SinglePtLoad() {
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std::unique_ptr<ElfInterface> elf(new ElfInterfaceType(&memory_));
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Ehdr ehdr = {};
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ehdr.e_phoff = 0x100;
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ehdr.e_phnum = 1;
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ehdr.e_phentsize = sizeof(Phdr);
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memory_.SetMemory(0, &ehdr, sizeof(ehdr));
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Phdr phdr = {};
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phdr.p_type = PT_LOAD;
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phdr.p_vaddr = 0x2000;
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phdr.p_memsz = 0x10000;
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phdr.p_flags = PF_R | PF_X;
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phdr.p_align = 0x1000;
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memory_.SetMemory(0x100, &phdr, sizeof(phdr));
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int64_t load_bias = 0;
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ASSERT_TRUE(elf->Init(&load_bias));
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EXPECT_EQ(0x2000, load_bias);
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const std::unordered_map<uint64_t, LoadInfo>& pt_loads = elf->pt_loads();
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ASSERT_EQ(1U, pt_loads.size());
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LoadInfo load_data = pt_loads.at(0);
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ASSERT_EQ(0U, load_data.offset);
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ASSERT_EQ(0x2000U, load_data.table_offset);
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ASSERT_EQ(0x10000U, load_data.table_size);
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}
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TEST_F(ElfInterfaceTest, single_pt_load_32) {
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SinglePtLoad<Elf32_Ehdr, Elf32_Phdr, Elf32_Dyn, ElfInterface32>();
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}
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TEST_F(ElfInterfaceTest, single_pt_load_64) {
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SinglePtLoad<Elf64_Ehdr, Elf64_Phdr, Elf64_Dyn, ElfInterface64>();
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}
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template <typename Ehdr, typename Phdr, typename Dyn, typename ElfInterfaceType>
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void ElfInterfaceTest::MultipleExecutablePtLoads() {
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std::unique_ptr<ElfInterface> elf(new ElfInterfaceType(&memory_));
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Ehdr ehdr = {};
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ehdr.e_phoff = 0x100;
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ehdr.e_phnum = 3;
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ehdr.e_phentsize = sizeof(Phdr);
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memory_.SetMemory(0, &ehdr, sizeof(ehdr));
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Phdr phdr = {};
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phdr.p_type = PT_LOAD;
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phdr.p_vaddr = 0x2000;
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phdr.p_memsz = 0x10000;
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phdr.p_flags = PF_R | PF_X;
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phdr.p_align = 0x1000;
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memory_.SetMemory(0x100, &phdr, sizeof(phdr));
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memset(&phdr, 0, sizeof(phdr));
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phdr.p_type = PT_LOAD;
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phdr.p_offset = 0x1000;
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phdr.p_vaddr = 0x2001;
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phdr.p_memsz = 0x10001;
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phdr.p_flags = PF_R | PF_X;
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phdr.p_align = 0x1001;
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memory_.SetMemory(0x100 + sizeof(phdr), &phdr, sizeof(phdr));
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memset(&phdr, 0, sizeof(phdr));
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phdr.p_type = PT_LOAD;
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phdr.p_offset = 0x2000;
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phdr.p_vaddr = 0x2002;
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phdr.p_memsz = 0x10002;
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phdr.p_flags = PF_R | PF_X;
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phdr.p_align = 0x1002;
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memory_.SetMemory(0x100 + 2 * sizeof(phdr), &phdr, sizeof(phdr));
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int64_t load_bias = 0;
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ASSERT_TRUE(elf->Init(&load_bias));
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EXPECT_EQ(0x2000, load_bias);
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const std::unordered_map<uint64_t, LoadInfo>& pt_loads = elf->pt_loads();
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ASSERT_EQ(3U, pt_loads.size());
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LoadInfo load_data = pt_loads.at(0);
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ASSERT_EQ(0U, load_data.offset);
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ASSERT_EQ(0x2000U, load_data.table_offset);
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ASSERT_EQ(0x10000U, load_data.table_size);
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load_data = pt_loads.at(0x1000);
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ASSERT_EQ(0x1000U, load_data.offset);
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ASSERT_EQ(0x2001U, load_data.table_offset);
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ASSERT_EQ(0x10001U, load_data.table_size);
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load_data = pt_loads.at(0x2000);
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ASSERT_EQ(0x2000U, load_data.offset);
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ASSERT_EQ(0x2002U, load_data.table_offset);
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ASSERT_EQ(0x10002U, load_data.table_size);
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}
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TEST_F(ElfInterfaceTest, multiple_executable_pt_loads_32) {
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MultipleExecutablePtLoads<Elf32_Ehdr, Elf32_Phdr, Elf32_Dyn, ElfInterface32>();
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}
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TEST_F(ElfInterfaceTest, multiple_executable_pt_loads_64) {
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MultipleExecutablePtLoads<Elf64_Ehdr, Elf64_Phdr, Elf64_Dyn, ElfInterface64>();
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}
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template <typename Ehdr, typename Phdr, typename Dyn, typename ElfInterfaceType>
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void ElfInterfaceTest::MultipleExecutablePtLoadsIncrementsNotSizeOfPhdr() {
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std::unique_ptr<ElfInterface> elf(new ElfInterfaceType(&memory_));
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Ehdr ehdr = {};
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ehdr.e_phoff = 0x100;
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ehdr.e_phnum = 3;
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ehdr.e_phentsize = sizeof(Phdr) + 100;
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memory_.SetMemory(0, &ehdr, sizeof(ehdr));
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Phdr phdr = {};
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phdr.p_type = PT_LOAD;
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phdr.p_vaddr = 0x2000;
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phdr.p_memsz = 0x10000;
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phdr.p_flags = PF_R | PF_X;
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phdr.p_align = 0x1000;
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memory_.SetMemory(0x100, &phdr, sizeof(phdr));
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memset(&phdr, 0, sizeof(phdr));
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phdr.p_type = PT_LOAD;
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phdr.p_offset = 0x1000;
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phdr.p_vaddr = 0x2001;
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phdr.p_memsz = 0x10001;
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phdr.p_flags = PF_R | PF_X;
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phdr.p_align = 0x1001;
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memory_.SetMemory(0x100 + sizeof(phdr) + 100, &phdr, sizeof(phdr));
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memset(&phdr, 0, sizeof(phdr));
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phdr.p_type = PT_LOAD;
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phdr.p_offset = 0x2000;
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phdr.p_vaddr = 0x2002;
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phdr.p_memsz = 0x10002;
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phdr.p_flags = PF_R | PF_X;
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phdr.p_align = 0x1002;
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memory_.SetMemory(0x100 + 2 * (sizeof(phdr) + 100), &phdr, sizeof(phdr));
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int64_t load_bias = 0;
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ASSERT_TRUE(elf->Init(&load_bias));
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EXPECT_EQ(0x2000, load_bias);
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const std::unordered_map<uint64_t, LoadInfo>& pt_loads = elf->pt_loads();
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ASSERT_EQ(3U, pt_loads.size());
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LoadInfo load_data = pt_loads.at(0);
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ASSERT_EQ(0U, load_data.offset);
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ASSERT_EQ(0x2000U, load_data.table_offset);
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ASSERT_EQ(0x10000U, load_data.table_size);
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load_data = pt_loads.at(0x1000);
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ASSERT_EQ(0x1000U, load_data.offset);
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ASSERT_EQ(0x2001U, load_data.table_offset);
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ASSERT_EQ(0x10001U, load_data.table_size);
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load_data = pt_loads.at(0x2000);
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ASSERT_EQ(0x2000U, load_data.offset);
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ASSERT_EQ(0x2002U, load_data.table_offset);
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ASSERT_EQ(0x10002U, load_data.table_size);
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}
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TEST_F(ElfInterfaceTest, multiple_executable_pt_loads_increments_not_size_of_phdr_32) {
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MultipleExecutablePtLoadsIncrementsNotSizeOfPhdr<Elf32_Ehdr, Elf32_Phdr, Elf32_Dyn,
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ElfInterface32>();
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}
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TEST_F(ElfInterfaceTest, multiple_executable_pt_loads_increments_not_size_of_phdr_64) {
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MultipleExecutablePtLoadsIncrementsNotSizeOfPhdr<Elf64_Ehdr, Elf64_Phdr, Elf64_Dyn,
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ElfInterface64>();
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}
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template <typename Ehdr, typename Phdr, typename Dyn, typename ElfInterfaceType>
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void ElfInterfaceTest::NonExecutablePtLoads() {
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std::unique_ptr<ElfInterface> elf(new ElfInterfaceType(&memory_));
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Ehdr ehdr = {};
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ehdr.e_phoff = 0x100;
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ehdr.e_phnum = 3;
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ehdr.e_phentsize = sizeof(Phdr);
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memory_.SetMemory(0, &ehdr, sizeof(ehdr));
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Phdr phdr = {};
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phdr.p_type = PT_LOAD;
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phdr.p_vaddr = 0x2000;
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phdr.p_memsz = 0x10000;
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phdr.p_flags = PF_R;
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phdr.p_align = 0x1000;
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memory_.SetMemory(0x100, &phdr, sizeof(phdr));
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memset(&phdr, 0, sizeof(phdr));
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phdr.p_type = PT_LOAD;
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phdr.p_offset = 0x1000;
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phdr.p_vaddr = 0x2001;
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phdr.p_memsz = 0x10001;
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phdr.p_flags = PF_R | PF_X;
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phdr.p_align = 0x1001;
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memory_.SetMemory(0x100 + sizeof(phdr), &phdr, sizeof(phdr));
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memset(&phdr, 0, sizeof(phdr));
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phdr.p_type = PT_LOAD;
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phdr.p_offset = 0x2000;
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phdr.p_vaddr = 0x2002;
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phdr.p_memsz = 0x10002;
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phdr.p_flags = PF_R;
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phdr.p_align = 0x1002;
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memory_.SetMemory(0x100 + 2 * sizeof(phdr), &phdr, sizeof(phdr));
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int64_t load_bias = 0;
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ASSERT_TRUE(elf->Init(&load_bias));
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EXPECT_EQ(0x1001, load_bias);
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const std::unordered_map<uint64_t, LoadInfo>& pt_loads = elf->pt_loads();
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ASSERT_EQ(1U, pt_loads.size());
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LoadInfo load_data = pt_loads.at(0x1000);
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ASSERT_EQ(0x1000U, load_data.offset);
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ASSERT_EQ(0x2001U, load_data.table_offset);
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ASSERT_EQ(0x10001U, load_data.table_size);
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}
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TEST_F(ElfInterfaceTest, non_executable_pt_loads_32) {
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NonExecutablePtLoads<Elf32_Ehdr, Elf32_Phdr, Elf32_Dyn, ElfInterface32>();
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}
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TEST_F(ElfInterfaceTest, non_executable_pt_loads_64) {
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NonExecutablePtLoads<Elf64_Ehdr, Elf64_Phdr, Elf64_Dyn, ElfInterface64>();
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}
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template <typename Ehdr, typename Phdr, typename Dyn, typename ElfInterfaceType>
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void ElfInterfaceTest::ManyPhdrs() {
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std::unique_ptr<ElfInterface> elf(new ElfInterfaceType(&memory_));
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Ehdr ehdr = {};
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ehdr.e_phoff = 0x100;
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ehdr.e_phnum = 7;
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ehdr.e_phentsize = sizeof(Phdr);
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memory_.SetMemory(0, &ehdr, sizeof(ehdr));
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uint64_t phdr_offset = 0x100;
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Phdr phdr = {};
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phdr.p_type = PT_LOAD;
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phdr.p_vaddr = 0x2000;
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phdr.p_memsz = 0x10000;
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phdr.p_flags = PF_R | PF_X;
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phdr.p_align = 0x1000;
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memory_.SetMemory(phdr_offset, &phdr, sizeof(phdr));
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phdr_offset += sizeof(phdr);
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memset(&phdr, 0, sizeof(phdr));
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phdr.p_type = PT_GNU_EH_FRAME;
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memory_.SetMemory(phdr_offset, &phdr, sizeof(phdr));
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phdr_offset += sizeof(phdr);
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memset(&phdr, 0, sizeof(phdr));
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phdr.p_type = PT_DYNAMIC;
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memory_.SetMemory(phdr_offset, &phdr, sizeof(phdr));
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phdr_offset += sizeof(phdr);
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memset(&phdr, 0, sizeof(phdr));
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phdr.p_type = PT_INTERP;
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memory_.SetMemory(phdr_offset, &phdr, sizeof(phdr));
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phdr_offset += sizeof(phdr);
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memset(&phdr, 0, sizeof(phdr));
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phdr.p_type = PT_NOTE;
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memory_.SetMemory(phdr_offset, &phdr, sizeof(phdr));
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phdr_offset += sizeof(phdr);
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memset(&phdr, 0, sizeof(phdr));
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phdr.p_type = PT_SHLIB;
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memory_.SetMemory(phdr_offset, &phdr, sizeof(phdr));
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phdr_offset += sizeof(phdr);
|
|
|
|
memset(&phdr, 0, sizeof(phdr));
|
|
phdr.p_type = PT_GNU_EH_FRAME;
|
|
memory_.SetMemory(phdr_offset, &phdr, sizeof(phdr));
|
|
|
|
int64_t load_bias = 0;
|
|
ASSERT_TRUE(elf->Init(&load_bias));
|
|
EXPECT_EQ(0x2000, load_bias);
|
|
|
|
const std::unordered_map<uint64_t, LoadInfo>& pt_loads = elf->pt_loads();
|
|
ASSERT_EQ(1U, pt_loads.size());
|
|
|
|
LoadInfo load_data = pt_loads.at(0);
|
|
ASSERT_EQ(0U, load_data.offset);
|
|
ASSERT_EQ(0x2000U, load_data.table_offset);
|
|
ASSERT_EQ(0x10000U, load_data.table_size);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, many_phdrs_32) {
|
|
ElfInterfaceTest::ManyPhdrs<Elf32_Ehdr, Elf32_Phdr, Elf32_Dyn, ElfInterface32>();
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, many_phdrs_64) {
|
|
ElfInterfaceTest::ManyPhdrs<Elf64_Ehdr, Elf64_Phdr, Elf64_Dyn, ElfInterface64>();
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, arm32) {
|
|
ElfInterfaceArm elf_arm(&memory_);
|
|
|
|
Elf32_Ehdr ehdr = {};
|
|
ehdr.e_phoff = 0x100;
|
|
ehdr.e_phnum = 1;
|
|
ehdr.e_phentsize = sizeof(Elf32_Phdr);
|
|
memory_.SetMemory(0, &ehdr, sizeof(ehdr));
|
|
|
|
Elf32_Phdr phdr = {};
|
|
phdr.p_type = PT_ARM_EXIDX;
|
|
phdr.p_offset = 0x2000;
|
|
phdr.p_filesz = 16;
|
|
memory_.SetMemory(0x100, &phdr, sizeof(phdr));
|
|
|
|
// Add arm exidx entries.
|
|
memory_.SetData32(0x2000, 0x1000);
|
|
memory_.SetData32(0x2008, 0x1000);
|
|
|
|
int64_t load_bias = 0;
|
|
ASSERT_TRUE(elf_arm.Init(&load_bias));
|
|
EXPECT_EQ(0, load_bias);
|
|
|
|
std::vector<uint32_t> entries;
|
|
for (auto addr : elf_arm) {
|
|
entries.push_back(addr);
|
|
}
|
|
ASSERT_EQ(2U, entries.size());
|
|
ASSERT_EQ(0x3000U, entries[0]);
|
|
ASSERT_EQ(0x3008U, entries[1]);
|
|
|
|
ASSERT_EQ(0x2000U, elf_arm.start_offset());
|
|
ASSERT_EQ(2U, elf_arm.total_entries());
|
|
}
|
|
|
|
template <typename Ehdr, typename Phdr, typename Shdr, typename Dyn>
|
|
void ElfInterfaceTest::SonameInit(SonameTestEnum test_type) {
|
|
Ehdr ehdr = {};
|
|
ehdr.e_shoff = 0x200;
|
|
ehdr.e_shnum = 2;
|
|
ehdr.e_shentsize = sizeof(Shdr);
|
|
ehdr.e_phoff = 0x100;
|
|
ehdr.e_phnum = 1;
|
|
ehdr.e_phentsize = sizeof(Phdr);
|
|
memory_.SetMemory(0, &ehdr, sizeof(ehdr));
|
|
|
|
Shdr shdr = {};
|
|
shdr.sh_type = SHT_STRTAB;
|
|
if (test_type == SONAME_MISSING_MAP) {
|
|
shdr.sh_addr = 0x20100;
|
|
} else {
|
|
shdr.sh_addr = 0x10100;
|
|
}
|
|
shdr.sh_offset = 0x10000;
|
|
memory_.SetMemory(0x200 + sizeof(shdr), &shdr, sizeof(shdr));
|
|
|
|
Phdr phdr = {};
|
|
phdr.p_type = PT_DYNAMIC;
|
|
phdr.p_offset = 0x2000;
|
|
phdr.p_memsz = sizeof(Dyn) * 3;
|
|
memory_.SetMemory(0x100, &phdr, sizeof(phdr));
|
|
|
|
uint64_t offset = 0x2000;
|
|
Dyn dyn;
|
|
|
|
dyn.d_tag = DT_STRTAB;
|
|
dyn.d_un.d_ptr = 0x10100;
|
|
memory_.SetMemory(offset, &dyn, sizeof(dyn));
|
|
offset += sizeof(dyn);
|
|
|
|
dyn.d_tag = DT_STRSZ;
|
|
if (test_type == SONAME_DTSIZE_SMALL) {
|
|
dyn.d_un.d_val = 0x10;
|
|
} else {
|
|
dyn.d_un.d_val = 0x1000;
|
|
}
|
|
memory_.SetMemory(offset, &dyn, sizeof(dyn));
|
|
offset += sizeof(dyn);
|
|
|
|
if (test_type == SONAME_DTNULL_AFTER) {
|
|
dyn.d_tag = DT_NULL;
|
|
memory_.SetMemory(offset, &dyn, sizeof(dyn));
|
|
offset += sizeof(dyn);
|
|
}
|
|
|
|
dyn.d_tag = DT_SONAME;
|
|
dyn.d_un.d_val = 0x10;
|
|
memory_.SetMemory(offset, &dyn, sizeof(dyn));
|
|
offset += sizeof(dyn);
|
|
|
|
dyn.d_tag = DT_NULL;
|
|
memory_.SetMemory(offset, &dyn, sizeof(dyn));
|
|
|
|
SetStringMemory(0x10010, "fake_soname.so");
|
|
}
|
|
|
|
template <typename ElfInterfaceType>
|
|
void ElfInterfaceTest::Soname() {
|
|
std::unique_ptr<ElfInterface> elf(new ElfInterfaceType(&memory_));
|
|
|
|
int64_t load_bias = 0;
|
|
ASSERT_TRUE(elf->Init(&load_bias));
|
|
EXPECT_EQ(0, load_bias);
|
|
|
|
ASSERT_EQ("fake_soname.so", elf->GetSoname());
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, soname_32) {
|
|
SonameInit<Elf32_Ehdr, Elf32_Phdr, Elf32_Shdr, Elf32_Dyn>();
|
|
Soname<ElfInterface32>();
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, soname_64) {
|
|
SonameInit<Elf64_Ehdr, Elf64_Phdr, Elf64_Shdr, Elf64_Dyn>();
|
|
Soname<ElfInterface64>();
|
|
}
|
|
|
|
template <typename ElfInterfaceType>
|
|
void ElfInterfaceTest::SonameAfterDtNull() {
|
|
std::unique_ptr<ElfInterface> elf(new ElfInterfaceType(&memory_));
|
|
|
|
int64_t load_bias = 0;
|
|
ASSERT_TRUE(elf->Init(&load_bias));
|
|
EXPECT_EQ(0, load_bias);
|
|
|
|
ASSERT_EQ("", elf->GetSoname());
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, soname_after_dt_null_32) {
|
|
SonameInit<Elf32_Ehdr, Elf32_Phdr, Elf32_Shdr, Elf32_Dyn>(SONAME_DTNULL_AFTER);
|
|
SonameAfterDtNull<ElfInterface32>();
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, soname_after_dt_null_64) {
|
|
SonameInit<Elf64_Ehdr, Elf64_Phdr, Elf64_Shdr, Elf64_Dyn>(SONAME_DTNULL_AFTER);
|
|
SonameAfterDtNull<ElfInterface64>();
|
|
}
|
|
|
|
template <typename ElfInterfaceType>
|
|
void ElfInterfaceTest::SonameSize() {
|
|
std::unique_ptr<ElfInterface> elf(new ElfInterfaceType(&memory_));
|
|
|
|
int64_t load_bias = 0;
|
|
ASSERT_TRUE(elf->Init(&load_bias));
|
|
EXPECT_EQ(0, load_bias);
|
|
|
|
ASSERT_EQ("", elf->GetSoname());
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, soname_size_32) {
|
|
SonameInit<Elf32_Ehdr, Elf32_Phdr, Elf32_Shdr, Elf32_Dyn>(SONAME_DTSIZE_SMALL);
|
|
SonameSize<ElfInterface32>();
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, soname_size_64) {
|
|
SonameInit<Elf64_Ehdr, Elf64_Phdr, Elf64_Shdr, Elf64_Dyn>(SONAME_DTSIZE_SMALL);
|
|
SonameSize<ElfInterface64>();
|
|
}
|
|
|
|
// Verify that there is no map from STRTAB in the dynamic section to a
|
|
// STRTAB entry in the section headers.
|
|
template <typename ElfInterfaceType>
|
|
void ElfInterfaceTest::SonameMissingMap() {
|
|
std::unique_ptr<ElfInterface> elf(new ElfInterfaceType(&memory_));
|
|
|
|
int64_t load_bias = 0;
|
|
ASSERT_TRUE(elf->Init(&load_bias));
|
|
EXPECT_EQ(0, load_bias);
|
|
|
|
ASSERT_EQ("", elf->GetSoname());
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, soname_missing_map_32) {
|
|
SonameInit<Elf32_Ehdr, Elf32_Phdr, Elf32_Shdr, Elf32_Dyn>(SONAME_MISSING_MAP);
|
|
SonameMissingMap<ElfInterface32>();
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, soname_missing_map_64) {
|
|
SonameInit<Elf64_Ehdr, Elf64_Phdr, Elf64_Shdr, Elf64_Dyn>(SONAME_MISSING_MAP);
|
|
SonameMissingMap<ElfInterface64>();
|
|
}
|
|
|
|
template <typename ElfType>
|
|
void ElfInterfaceTest::InitHeadersEhFrameTest() {
|
|
ElfType elf(&memory_);
|
|
|
|
elf.FakeSetEhFrameOffset(0x10000);
|
|
elf.FakeSetEhFrameSize(0);
|
|
elf.FakeSetDebugFrameOffset(0);
|
|
elf.FakeSetDebugFrameSize(0);
|
|
|
|
memory_.SetMemory(0x10000,
|
|
std::vector<uint8_t>{0x1, DW_EH_PE_udata2, DW_EH_PE_udata2, DW_EH_PE_udata2});
|
|
memory_.SetData32(0x10004, 0x500);
|
|
memory_.SetData32(0x10008, 250);
|
|
|
|
elf.InitHeaders();
|
|
|
|
EXPECT_FALSE(elf.eh_frame() == nullptr);
|
|
EXPECT_TRUE(elf.debug_frame() == nullptr);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_headers_eh_frame_32) {
|
|
InitHeadersEhFrameTest<ElfInterface32Fake>();
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_headers_eh_frame_64) {
|
|
InitHeadersEhFrameTest<ElfInterface64Fake>();
|
|
}
|
|
|
|
template <typename ElfType>
|
|
void ElfInterfaceTest::InitHeadersDebugFrame() {
|
|
ElfType elf(&memory_);
|
|
|
|
elf.FakeSetEhFrameOffset(0);
|
|
elf.FakeSetEhFrameSize(0);
|
|
elf.FakeSetDebugFrameOffset(0x5000);
|
|
elf.FakeSetDebugFrameSize(0x200);
|
|
|
|
memory_.SetData32(0x5000, 0xfc);
|
|
memory_.SetData32(0x5004, 0xffffffff);
|
|
memory_.SetMemory(0x5008, std::vector<uint8_t>{1, '\0', 4, 8, 2});
|
|
|
|
memory_.SetData32(0x5100, 0xfc);
|
|
memory_.SetData32(0x5104, 0);
|
|
memory_.SetData32(0x5108, 0x1500);
|
|
memory_.SetData32(0x510c, 0x200);
|
|
|
|
elf.InitHeaders();
|
|
|
|
EXPECT_TRUE(elf.eh_frame() == nullptr);
|
|
EXPECT_FALSE(elf.debug_frame() == nullptr);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_headers_debug_frame_32) {
|
|
InitHeadersDebugFrame<ElfInterface32Fake>();
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_headers_debug_frame_64) {
|
|
InitHeadersDebugFrame<ElfInterface64Fake>();
|
|
}
|
|
|
|
template <typename Ehdr, typename Phdr, typename ElfInterfaceType>
|
|
void ElfInterfaceTest::InitProgramHeadersMalformed() {
|
|
std::unique_ptr<ElfInterfaceType> elf(new ElfInterfaceType(&memory_));
|
|
|
|
Ehdr ehdr = {};
|
|
ehdr.e_phoff = 0x100;
|
|
ehdr.e_phnum = 3;
|
|
ehdr.e_phentsize = sizeof(Phdr);
|
|
memory_.SetMemory(0, &ehdr, sizeof(ehdr));
|
|
|
|
int64_t load_bias = 0;
|
|
ASSERT_TRUE(elf->Init(&load_bias));
|
|
EXPECT_EQ(0, load_bias);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_program_headers_malformed_32) {
|
|
InitProgramHeadersMalformed<Elf32_Ehdr, Elf32_Phdr, ElfInterface32>();
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_program_headers_malformed_64) {
|
|
InitProgramHeadersMalformed<Elf64_Ehdr, Elf64_Phdr, ElfInterface64>();
|
|
}
|
|
|
|
template <typename Ehdr, typename Shdr, typename ElfInterfaceType>
|
|
void ElfInterfaceTest::InitSectionHeadersMalformed() {
|
|
std::unique_ptr<ElfInterfaceType> elf(new ElfInterfaceType(&memory_));
|
|
|
|
Ehdr ehdr = {};
|
|
ehdr.e_shoff = 0x1000;
|
|
ehdr.e_shnum = 10;
|
|
ehdr.e_shentsize = sizeof(Shdr);
|
|
memory_.SetMemory(0, &ehdr, sizeof(ehdr));
|
|
|
|
int64_t load_bias = 0;
|
|
ASSERT_TRUE(elf->Init(&load_bias));
|
|
EXPECT_EQ(0, load_bias);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_section_headers_malformed_32) {
|
|
InitSectionHeadersMalformed<Elf32_Ehdr, Elf32_Shdr, ElfInterface32>();
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_section_headers_malformed_64) {
|
|
InitSectionHeadersMalformed<Elf64_Ehdr, Elf64_Shdr, ElfInterface64>();
|
|
}
|
|
|
|
template <typename Ehdr, typename Shdr, typename ElfInterfaceType>
|
|
void ElfInterfaceTest::InitSectionHeadersMalformedSymData() {
|
|
std::unique_ptr<ElfInterfaceType> elf(new ElfInterfaceType(&memory_));
|
|
|
|
uint64_t offset = 0x1000;
|
|
|
|
Ehdr ehdr = {};
|
|
ehdr.e_shoff = offset;
|
|
ehdr.e_shnum = 5;
|
|
ehdr.e_shentsize = sizeof(Shdr);
|
|
memory_.SetMemory(0, &ehdr, sizeof(ehdr));
|
|
|
|
offset += ehdr.e_shentsize;
|
|
|
|
Shdr shdr = {};
|
|
shdr.sh_type = SHT_SYMTAB;
|
|
shdr.sh_link = 4;
|
|
shdr.sh_addr = 0x5000;
|
|
shdr.sh_offset = 0x5000;
|
|
shdr.sh_entsize = 0x100;
|
|
shdr.sh_size = shdr.sh_entsize * 10;
|
|
memory_.SetMemory(offset, &shdr, sizeof(shdr));
|
|
offset += ehdr.e_shentsize;
|
|
|
|
memset(&shdr, 0, sizeof(shdr));
|
|
shdr.sh_type = SHT_DYNSYM;
|
|
shdr.sh_link = 10;
|
|
shdr.sh_addr = 0x6000;
|
|
shdr.sh_offset = 0x6000;
|
|
shdr.sh_entsize = 0x100;
|
|
shdr.sh_size = shdr.sh_entsize * 10;
|
|
memory_.SetMemory(offset, &shdr, sizeof(shdr));
|
|
offset += ehdr.e_shentsize;
|
|
|
|
memset(&shdr, 0, sizeof(shdr));
|
|
shdr.sh_type = SHT_DYNSYM;
|
|
shdr.sh_link = 2;
|
|
shdr.sh_addr = 0x6000;
|
|
shdr.sh_offset = 0x6000;
|
|
shdr.sh_entsize = 0x100;
|
|
shdr.sh_size = shdr.sh_entsize * 10;
|
|
memory_.SetMemory(offset, &shdr, sizeof(shdr));
|
|
offset += ehdr.e_shentsize;
|
|
|
|
// The string data for the entries.
|
|
memset(&shdr, 0, sizeof(shdr));
|
|
shdr.sh_type = SHT_STRTAB;
|
|
shdr.sh_name = 0x20000;
|
|
shdr.sh_offset = 0xf000;
|
|
shdr.sh_size = 0x1000;
|
|
memory_.SetMemory(offset, &shdr, sizeof(shdr));
|
|
|
|
int64_t load_bias = 0;
|
|
ASSERT_TRUE(elf->Init(&load_bias));
|
|
EXPECT_EQ(0, load_bias);
|
|
EXPECT_EQ(0U, elf->debug_frame_offset());
|
|
EXPECT_EQ(0U, elf->debug_frame_size());
|
|
EXPECT_EQ(0U, elf->gnu_debugdata_offset());
|
|
EXPECT_EQ(0U, elf->gnu_debugdata_size());
|
|
|
|
SharedString name;
|
|
uint64_t name_offset;
|
|
ASSERT_FALSE(elf->GetFunctionName(0x90010, &name, &name_offset));
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_section_headers_malformed_symdata_32) {
|
|
InitSectionHeadersMalformedSymData<Elf32_Ehdr, Elf32_Shdr, ElfInterface32>();
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_section_headers_malformed_symdata_64) {
|
|
InitSectionHeadersMalformedSymData<Elf64_Ehdr, Elf64_Shdr, ElfInterface64>();
|
|
}
|
|
|
|
template <typename Ehdr, typename Shdr, typename Sym, typename ElfInterfaceType>
|
|
void ElfInterfaceTest::InitSectionHeaders(uint64_t entry_size) {
|
|
std::unique_ptr<ElfInterfaceType> elf(new ElfInterfaceType(&memory_));
|
|
|
|
uint64_t offset = 0x1000;
|
|
|
|
Ehdr ehdr = {};
|
|
ehdr.e_shoff = offset;
|
|
ehdr.e_shnum = 5;
|
|
ehdr.e_shentsize = entry_size;
|
|
memory_.SetMemory(0, &ehdr, sizeof(ehdr));
|
|
|
|
offset += ehdr.e_shentsize;
|
|
|
|
Shdr shdr = {};
|
|
shdr.sh_type = SHT_SYMTAB;
|
|
shdr.sh_link = 4;
|
|
shdr.sh_addr = 0x5000;
|
|
shdr.sh_offset = 0x5000;
|
|
shdr.sh_entsize = sizeof(Sym);
|
|
shdr.sh_size = shdr.sh_entsize * 10;
|
|
memory_.SetMemory(offset, &shdr, sizeof(shdr));
|
|
offset += ehdr.e_shentsize;
|
|
|
|
memset(&shdr, 0, sizeof(shdr));
|
|
shdr.sh_type = SHT_DYNSYM;
|
|
shdr.sh_link = 4;
|
|
shdr.sh_addr = 0x6000;
|
|
shdr.sh_offset = 0x6000;
|
|
shdr.sh_entsize = sizeof(Sym);
|
|
shdr.sh_size = shdr.sh_entsize * 10;
|
|
memory_.SetMemory(offset, &shdr, sizeof(shdr));
|
|
offset += ehdr.e_shentsize;
|
|
|
|
memset(&shdr, 0, sizeof(shdr));
|
|
shdr.sh_type = SHT_PROGBITS;
|
|
shdr.sh_name = 0xa000;
|
|
memory_.SetMemory(offset, &shdr, sizeof(shdr));
|
|
offset += ehdr.e_shentsize;
|
|
|
|
// The string data for the entries.
|
|
memset(&shdr, 0, sizeof(shdr));
|
|
shdr.sh_type = SHT_STRTAB;
|
|
shdr.sh_name = 0x20000;
|
|
shdr.sh_offset = 0xf000;
|
|
shdr.sh_size = 0x1000;
|
|
memory_.SetMemory(offset, &shdr, sizeof(shdr));
|
|
|
|
InitSym<Sym>(0x5000, 0x90000, 0x1000, 0x100, 0xf000, "function_one");
|
|
InitSym<Sym>(0x6000, 0xd0000, 0x1000, 0x300, 0xf000, "function_two");
|
|
|
|
int64_t load_bias = 0;
|
|
ASSERT_TRUE(elf->Init(&load_bias));
|
|
EXPECT_EQ(0, load_bias);
|
|
EXPECT_EQ(0U, elf->debug_frame_offset());
|
|
EXPECT_EQ(0U, elf->debug_frame_size());
|
|
EXPECT_EQ(0U, elf->gnu_debugdata_offset());
|
|
EXPECT_EQ(0U, elf->gnu_debugdata_size());
|
|
|
|
// Look in the first symbol table.
|
|
SharedString name;
|
|
uint64_t name_offset;
|
|
ASSERT_TRUE(elf->GetFunctionName(0x90010, &name, &name_offset));
|
|
EXPECT_EQ("function_one", name);
|
|
EXPECT_EQ(16U, name_offset);
|
|
ASSERT_TRUE(elf->GetFunctionName(0xd0020, &name, &name_offset));
|
|
EXPECT_EQ("function_two", name);
|
|
EXPECT_EQ(32U, name_offset);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_section_headers_32) {
|
|
InitSectionHeaders<Elf32_Ehdr, Elf32_Shdr, Elf32_Sym, ElfInterface32>(sizeof(Elf32_Shdr));
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_section_headers_64) {
|
|
InitSectionHeaders<Elf64_Ehdr, Elf64_Shdr, Elf64_Sym, ElfInterface64>(sizeof(Elf64_Shdr));
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_section_headers_non_std_entry_size_32) {
|
|
InitSectionHeaders<Elf32_Ehdr, Elf32_Shdr, Elf32_Sym, ElfInterface32>(0x100);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_section_headers_non_std_entry_size_64) {
|
|
InitSectionHeaders<Elf64_Ehdr, Elf64_Shdr, Elf64_Sym, ElfInterface64>(0x100);
|
|
}
|
|
|
|
template <typename Ehdr, typename Shdr, typename ElfInterfaceType>
|
|
void ElfInterfaceTest::InitSectionHeadersOffsets() {
|
|
std::unique_ptr<ElfInterfaceType> elf(new ElfInterfaceType(&memory_));
|
|
|
|
uint64_t offset = 0x2000;
|
|
|
|
Ehdr ehdr = {};
|
|
ehdr.e_shoff = offset;
|
|
ehdr.e_shnum = 7;
|
|
ehdr.e_shentsize = sizeof(Shdr);
|
|
ehdr.e_shstrndx = 2;
|
|
memory_.SetMemory(0, &ehdr, sizeof(ehdr));
|
|
|
|
offset += ehdr.e_shentsize;
|
|
|
|
Shdr shdr = {};
|
|
shdr.sh_type = SHT_PROGBITS;
|
|
shdr.sh_link = 2;
|
|
shdr.sh_name = 0x200;
|
|
shdr.sh_addr = 0x5000;
|
|
shdr.sh_offset = 0x5000;
|
|
shdr.sh_entsize = 0x100;
|
|
shdr.sh_size = 0x800;
|
|
memory_.SetMemory(offset, &shdr, sizeof(shdr));
|
|
offset += ehdr.e_shentsize;
|
|
|
|
// The string data for section header names.
|
|
memset(&shdr, 0, sizeof(shdr));
|
|
shdr.sh_type = SHT_STRTAB;
|
|
shdr.sh_name = 0x20000;
|
|
shdr.sh_offset = 0xf000;
|
|
shdr.sh_size = 0x1000;
|
|
memory_.SetMemory(offset, &shdr, sizeof(shdr));
|
|
offset += ehdr.e_shentsize;
|
|
|
|
memset(&shdr, 0, sizeof(shdr));
|
|
shdr.sh_type = SHT_PROGBITS;
|
|
shdr.sh_link = 2;
|
|
shdr.sh_name = 0x100;
|
|
shdr.sh_addr = 0x6000;
|
|
shdr.sh_offset = 0x6000;
|
|
shdr.sh_entsize = 0x100;
|
|
shdr.sh_size = 0x500;
|
|
memory_.SetMemory(offset, &shdr, sizeof(shdr));
|
|
offset += ehdr.e_shentsize;
|
|
|
|
memset(&shdr, 0, sizeof(shdr));
|
|
shdr.sh_type = SHT_PROGBITS;
|
|
shdr.sh_link = 2;
|
|
shdr.sh_name = 0x300;
|
|
shdr.sh_addr = 0x7000;
|
|
shdr.sh_offset = 0x7000;
|
|
shdr.sh_entsize = 0x100;
|
|
shdr.sh_size = 0x800;
|
|
memory_.SetMemory(offset, &shdr, sizeof(shdr));
|
|
offset += ehdr.e_shentsize;
|
|
|
|
memset(&shdr, 0, sizeof(shdr));
|
|
shdr.sh_type = SHT_PROGBITS;
|
|
shdr.sh_link = 2;
|
|
shdr.sh_name = 0x400;
|
|
shdr.sh_addr = 0xa000;
|
|
shdr.sh_offset = 0xa000;
|
|
shdr.sh_entsize = 0x100;
|
|
shdr.sh_size = 0xf00;
|
|
memory_.SetMemory(offset, &shdr, sizeof(shdr));
|
|
offset += ehdr.e_shentsize;
|
|
|
|
memset(&shdr, 0, sizeof(shdr));
|
|
shdr.sh_type = SHT_NOTE;
|
|
shdr.sh_name = 0x500;
|
|
shdr.sh_addr = 0xb000;
|
|
shdr.sh_offset = 0xb000;
|
|
shdr.sh_size = 0xf00;
|
|
memory_.SetMemory(offset, &shdr, sizeof(shdr));
|
|
|
|
memory_.SetMemory(0xf100, ".debug_frame", sizeof(".debug_frame"));
|
|
memory_.SetMemory(0xf200, ".gnu_debugdata", sizeof(".gnu_debugdata"));
|
|
memory_.SetMemory(0xf300, ".eh_frame", sizeof(".eh_frame"));
|
|
memory_.SetMemory(0xf400, ".eh_frame_hdr", sizeof(".eh_frame_hdr"));
|
|
memory_.SetMemory(0xf500, ".note.gnu.build-id", sizeof(".note.gnu.build-id"));
|
|
|
|
int64_t load_bias = 0;
|
|
ASSERT_TRUE(elf->Init(&load_bias));
|
|
EXPECT_EQ(0, load_bias);
|
|
EXPECT_EQ(0x6000U, elf->debug_frame_offset());
|
|
EXPECT_EQ(0, elf->debug_frame_section_bias());
|
|
EXPECT_EQ(0x500U, elf->debug_frame_size());
|
|
|
|
EXPECT_EQ(0x5000U, elf->gnu_debugdata_offset());
|
|
EXPECT_EQ(0x800U, elf->gnu_debugdata_size());
|
|
|
|
EXPECT_EQ(0x7000U, elf->eh_frame_offset());
|
|
EXPECT_EQ(0, elf->eh_frame_section_bias());
|
|
EXPECT_EQ(0x800U, elf->eh_frame_size());
|
|
|
|
EXPECT_EQ(0xa000U, elf->eh_frame_hdr_offset());
|
|
EXPECT_EQ(0, elf->eh_frame_hdr_section_bias());
|
|
EXPECT_EQ(0xf00U, elf->eh_frame_hdr_size());
|
|
|
|
EXPECT_EQ(0xb000U, elf->gnu_build_id_offset());
|
|
EXPECT_EQ(0xf00U, elf->gnu_build_id_size());
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_section_headers_offsets_32) {
|
|
InitSectionHeadersOffsets<Elf32_Ehdr, Elf32_Shdr, ElfInterface32>();
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_section_headers_offsets_64) {
|
|
InitSectionHeadersOffsets<Elf64_Ehdr, Elf64_Shdr, ElfInterface64>();
|
|
}
|
|
|
|
template <typename Ehdr, typename Shdr, typename ElfInterfaceType>
|
|
void ElfInterfaceTest::InitSectionHeadersOffsetsEhFrameSectionBias(uint64_t addr, uint64_t offset,
|
|
int64_t expected_bias) {
|
|
std::unique_ptr<ElfInterfaceType> elf(new ElfInterfaceType(&memory_));
|
|
|
|
uint64_t elf_offset = 0x2000;
|
|
|
|
Ehdr ehdr = {};
|
|
ehdr.e_shoff = elf_offset;
|
|
ehdr.e_shnum = 4;
|
|
ehdr.e_shentsize = sizeof(Shdr);
|
|
ehdr.e_shstrndx = 2;
|
|
memory_.SetMemory(0, &ehdr, sizeof(ehdr));
|
|
|
|
elf_offset += ehdr.e_shentsize;
|
|
|
|
Shdr shdr = {};
|
|
shdr.sh_type = SHT_PROGBITS;
|
|
shdr.sh_link = 2;
|
|
shdr.sh_name = 0x200;
|
|
shdr.sh_addr = 0x8000;
|
|
shdr.sh_offset = 0x8000;
|
|
shdr.sh_entsize = 0x100;
|
|
shdr.sh_size = 0x800;
|
|
memory_.SetMemory(elf_offset, &shdr, sizeof(shdr));
|
|
elf_offset += ehdr.e_shentsize;
|
|
|
|
// The string data for section header names.
|
|
memset(&shdr, 0, sizeof(shdr));
|
|
shdr.sh_type = SHT_STRTAB;
|
|
shdr.sh_name = 0x20000;
|
|
shdr.sh_offset = 0xf000;
|
|
shdr.sh_size = 0x1000;
|
|
memory_.SetMemory(elf_offset, &shdr, sizeof(shdr));
|
|
elf_offset += ehdr.e_shentsize;
|
|
|
|
memset(&shdr, 0, sizeof(shdr));
|
|
shdr.sh_type = SHT_PROGBITS;
|
|
shdr.sh_link = 2;
|
|
shdr.sh_name = 0x100;
|
|
shdr.sh_addr = addr;
|
|
shdr.sh_offset = offset;
|
|
shdr.sh_entsize = 0x100;
|
|
shdr.sh_size = 0x500;
|
|
memory_.SetMemory(elf_offset, &shdr, sizeof(shdr));
|
|
|
|
memory_.SetMemory(0xf100, ".eh_frame", sizeof(".eh_frame"));
|
|
memory_.SetMemory(0xf200, ".eh_frame_hdr", sizeof(".eh_frame_hdr"));
|
|
|
|
int64_t load_bias = 0;
|
|
ASSERT_TRUE(elf->Init(&load_bias));
|
|
EXPECT_EQ(0, load_bias);
|
|
EXPECT_EQ(offset, elf->eh_frame_offset());
|
|
EXPECT_EQ(expected_bias, elf->eh_frame_section_bias());
|
|
EXPECT_EQ(0x500U, elf->eh_frame_size());
|
|
|
|
EXPECT_EQ(0x8000U, elf->eh_frame_hdr_offset());
|
|
EXPECT_EQ(0, elf->eh_frame_hdr_section_bias());
|
|
EXPECT_EQ(0x800U, elf->eh_frame_hdr_size());
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_section_headers_offsets_eh_frame_section_bias_zero_32) {
|
|
InitSectionHeadersOffsetsEhFrameSectionBias<Elf32_Ehdr, Elf32_Shdr, ElfInterface32>(0x4000,
|
|
0x4000, 0);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_section_headers_offsets_eh_frame_section_bias_zero_64) {
|
|
InitSectionHeadersOffsetsEhFrameSectionBias<Elf64_Ehdr, Elf64_Shdr, ElfInterface64>(0x6000,
|
|
0x6000, 0);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_section_headers_offsets_eh_frame_section_bias_positive_32) {
|
|
InitSectionHeadersOffsetsEhFrameSectionBias<Elf32_Ehdr, Elf32_Shdr, ElfInterface32>(
|
|
0x5000, 0x4000, 0x1000);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_section_headers_offsets_eh_frame_section_bias_positive_64) {
|
|
InitSectionHeadersOffsetsEhFrameSectionBias<Elf64_Ehdr, Elf64_Shdr, ElfInterface64>(
|
|
0x6000, 0x4000, 0x2000);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_section_headers_offsets_eh_frame_section_bias_negative_32) {
|
|
InitSectionHeadersOffsetsEhFrameSectionBias<Elf32_Ehdr, Elf32_Shdr, ElfInterface32>(
|
|
0x3000, 0x4000, -0x1000);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_section_headers_offsets_eh_frame_section_bias_negative_64) {
|
|
InitSectionHeadersOffsetsEhFrameSectionBias<Elf64_Ehdr, Elf64_Shdr, ElfInterface64>(
|
|
0x6000, 0x9000, -0x3000);
|
|
}
|
|
|
|
template <typename Ehdr, typename Shdr, typename ElfInterfaceType>
|
|
void ElfInterfaceTest::InitSectionHeadersOffsetsEhFrameHdrSectionBias(uint64_t addr,
|
|
uint64_t offset,
|
|
int64_t expected_bias) {
|
|
std::unique_ptr<ElfInterfaceType> elf(new ElfInterfaceType(&memory_));
|
|
|
|
uint64_t elf_offset = 0x2000;
|
|
|
|
Ehdr ehdr = {};
|
|
ehdr.e_shoff = elf_offset;
|
|
ehdr.e_shnum = 4;
|
|
ehdr.e_shentsize = sizeof(Shdr);
|
|
ehdr.e_shstrndx = 2;
|
|
memory_.SetMemory(0, &ehdr, sizeof(ehdr));
|
|
|
|
elf_offset += ehdr.e_shentsize;
|
|
|
|
Shdr shdr = {};
|
|
shdr.sh_type = SHT_PROGBITS;
|
|
shdr.sh_link = 2;
|
|
shdr.sh_name = 0x200;
|
|
shdr.sh_addr = addr;
|
|
shdr.sh_offset = offset;
|
|
shdr.sh_entsize = 0x100;
|
|
shdr.sh_size = 0x800;
|
|
memory_.SetMemory(elf_offset, &shdr, sizeof(shdr));
|
|
elf_offset += ehdr.e_shentsize;
|
|
|
|
// The string data for section header names.
|
|
memset(&shdr, 0, sizeof(shdr));
|
|
shdr.sh_type = SHT_STRTAB;
|
|
shdr.sh_name = 0x20000;
|
|
shdr.sh_offset = 0xf000;
|
|
shdr.sh_size = 0x1000;
|
|
memory_.SetMemory(elf_offset, &shdr, sizeof(shdr));
|
|
elf_offset += ehdr.e_shentsize;
|
|
|
|
memset(&shdr, 0, sizeof(shdr));
|
|
shdr.sh_type = SHT_PROGBITS;
|
|
shdr.sh_link = 2;
|
|
shdr.sh_name = 0x100;
|
|
shdr.sh_addr = 0x5000;
|
|
shdr.sh_offset = 0x5000;
|
|
shdr.sh_entsize = 0x100;
|
|
shdr.sh_size = 0x500;
|
|
memory_.SetMemory(elf_offset, &shdr, sizeof(shdr));
|
|
|
|
memory_.SetMemory(0xf100, ".eh_frame", sizeof(".eh_frame"));
|
|
memory_.SetMemory(0xf200, ".eh_frame_hdr", sizeof(".eh_frame_hdr"));
|
|
|
|
int64_t load_bias = 0;
|
|
ASSERT_TRUE(elf->Init(&load_bias));
|
|
EXPECT_EQ(0, load_bias);
|
|
EXPECT_EQ(0x5000U, elf->eh_frame_offset());
|
|
EXPECT_EQ(0, elf->eh_frame_section_bias());
|
|
EXPECT_EQ(0x500U, elf->eh_frame_size());
|
|
EXPECT_EQ(offset, elf->eh_frame_hdr_offset());
|
|
EXPECT_EQ(expected_bias, elf->eh_frame_hdr_section_bias());
|
|
EXPECT_EQ(0x800U, elf->eh_frame_hdr_size());
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_section_headers_offsets_eh_frame_hdr_section_bias_zero_32) {
|
|
InitSectionHeadersOffsetsEhFrameHdrSectionBias<Elf32_Ehdr, Elf32_Shdr, ElfInterface32>(0x9000,
|
|
0x9000, 0);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_section_headers_offsets_eh_frame_hdr_section_bias_zero_64) {
|
|
InitSectionHeadersOffsetsEhFrameHdrSectionBias<Elf64_Ehdr, Elf64_Shdr, ElfInterface64>(0xa000,
|
|
0xa000, 0);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_section_headers_offsets_eh_frame_hdr_section_bias_positive_32) {
|
|
InitSectionHeadersOffsetsEhFrameHdrSectionBias<Elf32_Ehdr, Elf32_Shdr, ElfInterface32>(
|
|
0x9000, 0x4000, 0x5000);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_section_headers_offsets_eh_frame_hdr_section_bias_positive_64) {
|
|
InitSectionHeadersOffsetsEhFrameHdrSectionBias<Elf64_Ehdr, Elf64_Shdr, ElfInterface64>(
|
|
0x6000, 0x1000, 0x5000);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_section_headers_offsets_eh_frame_hdr_section_bias_negative_32) {
|
|
InitSectionHeadersOffsetsEhFrameHdrSectionBias<Elf32_Ehdr, Elf32_Shdr, ElfInterface32>(
|
|
0x3000, 0x5000, -0x2000);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_section_headers_offsets_eh_frame_hdr_section_bias_negative_64) {
|
|
InitSectionHeadersOffsetsEhFrameHdrSectionBias<Elf64_Ehdr, Elf64_Shdr, ElfInterface64>(
|
|
0x5000, 0x9000, -0x4000);
|
|
}
|
|
|
|
template <typename Ehdr, typename Shdr, typename ElfInterfaceType>
|
|
void ElfInterfaceTest::InitSectionHeadersOffsetsDebugFrameSectionBias(uint64_t addr,
|
|
uint64_t offset,
|
|
int64_t expected_bias) {
|
|
std::unique_ptr<ElfInterfaceType> elf(new ElfInterfaceType(&memory_));
|
|
|
|
uint64_t elf_offset = 0x2000;
|
|
|
|
Ehdr ehdr = {};
|
|
ehdr.e_shoff = elf_offset;
|
|
ehdr.e_shnum = 3;
|
|
ehdr.e_shentsize = sizeof(Shdr);
|
|
ehdr.e_shstrndx = 2;
|
|
memory_.SetMemory(0, &ehdr, sizeof(ehdr));
|
|
|
|
elf_offset += ehdr.e_shentsize;
|
|
|
|
Shdr shdr = {};
|
|
shdr.sh_type = SHT_PROGBITS;
|
|
shdr.sh_link = 2;
|
|
shdr.sh_name = 0x100;
|
|
shdr.sh_addr = addr;
|
|
shdr.sh_offset = offset;
|
|
shdr.sh_entsize = 0x100;
|
|
shdr.sh_size = 0x800;
|
|
memory_.SetMemory(elf_offset, &shdr, sizeof(shdr));
|
|
elf_offset += ehdr.e_shentsize;
|
|
|
|
// The string data for section header names.
|
|
memset(&shdr, 0, sizeof(shdr));
|
|
shdr.sh_type = SHT_STRTAB;
|
|
shdr.sh_name = 0x20000;
|
|
shdr.sh_offset = 0xf000;
|
|
shdr.sh_size = 0x1000;
|
|
memory_.SetMemory(elf_offset, &shdr, sizeof(shdr));
|
|
|
|
memory_.SetMemory(0xf100, ".debug_frame", sizeof(".debug_frame"));
|
|
|
|
int64_t load_bias = 0;
|
|
ASSERT_TRUE(elf->Init(&load_bias));
|
|
EXPECT_EQ(0, load_bias);
|
|
EXPECT_EQ(offset, elf->debug_frame_offset());
|
|
EXPECT_EQ(expected_bias, elf->debug_frame_section_bias());
|
|
EXPECT_EQ(0x800U, elf->debug_frame_size());
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_section_headers_offsets_debug_frame_section_bias_zero_32) {
|
|
InitSectionHeadersOffsetsDebugFrameSectionBias<Elf32_Ehdr, Elf32_Shdr, ElfInterface32>(0x5000,
|
|
0x5000, 0);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_section_headers_offsets_debug_frame_section_bias_zero_64) {
|
|
InitSectionHeadersOffsetsDebugFrameSectionBias<Elf64_Ehdr, Elf64_Shdr, ElfInterface64>(0xa000,
|
|
0xa000, 0);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_section_headers_offsets_debug_frame_section_bias_positive_32) {
|
|
InitSectionHeadersOffsetsDebugFrameSectionBias<Elf32_Ehdr, Elf32_Shdr, ElfInterface32>(
|
|
0x5000, 0x2000, 0x3000);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_section_headers_offsets_debug_frame_section_bias_positive_64) {
|
|
InitSectionHeadersOffsetsDebugFrameSectionBias<Elf64_Ehdr, Elf64_Shdr, ElfInterface64>(
|
|
0x7000, 0x1000, 0x6000);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_section_headers_offsets_debug_frame_section_bias_negative_32) {
|
|
InitSectionHeadersOffsetsDebugFrameSectionBias<Elf32_Ehdr, Elf32_Shdr, ElfInterface32>(
|
|
0x6000, 0x7000, -0x1000);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, init_section_headers_offsets_debug_frame_section_bias_negative_64) {
|
|
InitSectionHeadersOffsetsDebugFrameSectionBias<Elf64_Ehdr, Elf64_Shdr, ElfInterface64>(
|
|
0x3000, 0x5000, -0x2000);
|
|
}
|
|
|
|
template <typename Ehdr, typename Phdr, typename ElfInterfaceType>
|
|
void ElfInterfaceTest::CheckGnuEhFrame(uint64_t addr, uint64_t offset, int64_t expected_bias) {
|
|
std::unique_ptr<ElfInterface> elf(new ElfInterfaceType(&memory_));
|
|
|
|
Ehdr ehdr = {};
|
|
ehdr.e_phoff = 0x100;
|
|
ehdr.e_phnum = 2;
|
|
ehdr.e_phentsize = sizeof(Phdr);
|
|
memory_.SetMemory(0, &ehdr, sizeof(ehdr));
|
|
|
|
uint64_t phdr_offset = 0x100;
|
|
|
|
Phdr phdr = {};
|
|
phdr.p_type = PT_LOAD;
|
|
phdr.p_memsz = 0x10000;
|
|
phdr.p_flags = PF_R | PF_X;
|
|
phdr.p_align = 0x1000;
|
|
memory_.SetMemory(phdr_offset, &phdr, sizeof(phdr));
|
|
phdr_offset += sizeof(phdr);
|
|
|
|
memset(&phdr, 0, sizeof(phdr));
|
|
phdr.p_type = PT_GNU_EH_FRAME;
|
|
phdr.p_vaddr = addr;
|
|
phdr.p_offset = offset;
|
|
memory_.SetMemory(phdr_offset, &phdr, sizeof(phdr));
|
|
|
|
int64_t load_bias = 0;
|
|
ASSERT_TRUE(elf->Init(&load_bias));
|
|
EXPECT_EQ(0, load_bias);
|
|
EXPECT_EQ(expected_bias, elf->eh_frame_hdr_section_bias());
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, eh_frame_zero_section_bias_32) {
|
|
ElfInterfaceTest::CheckGnuEhFrame<Elf32_Ehdr, Elf32_Phdr, ElfInterface32>(0x4000, 0x4000, 0);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, eh_frame_zero_section_bias_64) {
|
|
ElfInterfaceTest::CheckGnuEhFrame<Elf64_Ehdr, Elf64_Phdr, ElfInterface64>(0x4000, 0x4000, 0);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, eh_frame_positive_section_bias_32) {
|
|
ElfInterfaceTest::CheckGnuEhFrame<Elf32_Ehdr, Elf32_Phdr, ElfInterface32>(0x4000, 0x1000, 0x3000);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, eh_frame_positive_section_bias_64) {
|
|
ElfInterfaceTest::CheckGnuEhFrame<Elf64_Ehdr, Elf64_Phdr, ElfInterface64>(0x4000, 0x1000, 0x3000);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, eh_frame_negative_section_bias_32) {
|
|
ElfInterfaceTest::CheckGnuEhFrame<Elf32_Ehdr, Elf32_Phdr, ElfInterface32>(0x4000, 0x5000,
|
|
-0x1000);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, eh_frame_negative_section_bias_64) {
|
|
ElfInterfaceTest::CheckGnuEhFrame<Elf64_Ehdr, Elf64_Phdr, ElfInterface64>(0x4000, 0x5000,
|
|
-0x1000);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, is_valid_pc_from_pt_load) {
|
|
std::unique_ptr<ElfInterface> elf(new ElfInterface32(&memory_));
|
|
|
|
Elf32_Ehdr ehdr = {};
|
|
ehdr.e_phoff = 0x100;
|
|
ehdr.e_phnum = 1;
|
|
ehdr.e_phentsize = sizeof(Elf32_Phdr);
|
|
memory_.SetMemory(0, &ehdr, sizeof(ehdr));
|
|
|
|
Elf32_Phdr phdr = {};
|
|
phdr.p_type = PT_LOAD;
|
|
phdr.p_vaddr = 0;
|
|
phdr.p_memsz = 0x10000;
|
|
phdr.p_flags = PF_R | PF_X;
|
|
phdr.p_align = 0x1000;
|
|
memory_.SetMemory(0x100, &phdr, sizeof(phdr));
|
|
|
|
int64_t load_bias = 0;
|
|
ASSERT_TRUE(elf->Init(&load_bias));
|
|
EXPECT_EQ(0, load_bias);
|
|
EXPECT_TRUE(elf->IsValidPc(0));
|
|
EXPECT_TRUE(elf->IsValidPc(0x5000));
|
|
EXPECT_TRUE(elf->IsValidPc(0xffff));
|
|
EXPECT_FALSE(elf->IsValidPc(0x10000));
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, is_valid_pc_from_pt_load_non_zero_load_bias) {
|
|
std::unique_ptr<ElfInterface> elf(new ElfInterface32(&memory_));
|
|
|
|
Elf32_Ehdr ehdr = {};
|
|
ehdr.e_phoff = 0x100;
|
|
ehdr.e_phnum = 1;
|
|
ehdr.e_phentsize = sizeof(Elf32_Phdr);
|
|
memory_.SetMemory(0, &ehdr, sizeof(ehdr));
|
|
|
|
Elf32_Phdr phdr = {};
|
|
phdr.p_type = PT_LOAD;
|
|
phdr.p_vaddr = 0x2000;
|
|
phdr.p_memsz = 0x10000;
|
|
phdr.p_flags = PF_R | PF_X;
|
|
phdr.p_align = 0x1000;
|
|
memory_.SetMemory(0x100, &phdr, sizeof(phdr));
|
|
|
|
int64_t load_bias = 0;
|
|
ASSERT_TRUE(elf->Init(&load_bias));
|
|
EXPECT_EQ(0x2000, load_bias);
|
|
EXPECT_FALSE(elf->IsValidPc(0));
|
|
EXPECT_FALSE(elf->IsValidPc(0x1000));
|
|
EXPECT_FALSE(elf->IsValidPc(0x1fff));
|
|
EXPECT_TRUE(elf->IsValidPc(0x2000));
|
|
EXPECT_TRUE(elf->IsValidPc(0x5000));
|
|
EXPECT_TRUE(elf->IsValidPc(0x11fff));
|
|
EXPECT_FALSE(elf->IsValidPc(0x12000));
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, is_valid_pc_from_debug_frame) {
|
|
std::unique_ptr<ElfInterface> elf(new ElfInterface32(&memory_));
|
|
|
|
uint64_t sh_offset = 0x100;
|
|
|
|
Elf32_Ehdr ehdr = {};
|
|
ehdr.e_shstrndx = 1;
|
|
ehdr.e_shoff = sh_offset;
|
|
ehdr.e_shentsize = sizeof(Elf32_Shdr);
|
|
ehdr.e_shnum = 3;
|
|
memory_.SetMemory(0, &ehdr, sizeof(ehdr));
|
|
|
|
Elf32_Shdr shdr = {};
|
|
shdr.sh_type = SHT_NULL;
|
|
memory_.SetMemory(sh_offset, &shdr, sizeof(shdr));
|
|
|
|
sh_offset += sizeof(shdr);
|
|
memset(&shdr, 0, sizeof(shdr));
|
|
shdr.sh_type = SHT_STRTAB;
|
|
shdr.sh_name = 1;
|
|
shdr.sh_offset = 0x500;
|
|
shdr.sh_size = 0x100;
|
|
memory_.SetMemory(sh_offset, &shdr, sizeof(shdr));
|
|
memory_.SetMemory(0x500, ".debug_frame");
|
|
|
|
sh_offset += sizeof(shdr);
|
|
memset(&shdr, 0, sizeof(shdr));
|
|
shdr.sh_type = SHT_PROGBITS;
|
|
shdr.sh_name = 0;
|
|
shdr.sh_addr = 0x600;
|
|
shdr.sh_offset = 0x600;
|
|
shdr.sh_size = 0x200;
|
|
memory_.SetMemory(sh_offset, &shdr, sizeof(shdr));
|
|
|
|
// CIE 32.
|
|
memory_.SetData32(0x600, 0xfc);
|
|
memory_.SetData32(0x604, 0xffffffff);
|
|
memory_.SetMemory(0x608, std::vector<uint8_t>{1, '\0', 4, 4, 1});
|
|
|
|
// FDE 32.
|
|
memory_.SetData32(0x700, 0xfc);
|
|
memory_.SetData32(0x704, 0);
|
|
memory_.SetData32(0x708, 0x2100);
|
|
memory_.SetData32(0x70c, 0x200);
|
|
|
|
int64_t load_bias = 0;
|
|
ASSERT_TRUE(elf->Init(&load_bias));
|
|
elf->InitHeaders();
|
|
EXPECT_EQ(0, load_bias);
|
|
EXPECT_FALSE(elf->IsValidPc(0));
|
|
EXPECT_FALSE(elf->IsValidPc(0x20ff));
|
|
EXPECT_TRUE(elf->IsValidPc(0x2100));
|
|
EXPECT_TRUE(elf->IsValidPc(0x2200));
|
|
EXPECT_TRUE(elf->IsValidPc(0x22ff));
|
|
EXPECT_FALSE(elf->IsValidPc(0x2300));
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, is_valid_pc_from_eh_frame) {
|
|
std::unique_ptr<ElfInterface> elf(new ElfInterface32(&memory_));
|
|
|
|
uint64_t sh_offset = 0x100;
|
|
|
|
Elf32_Ehdr ehdr = {};
|
|
ehdr.e_shstrndx = 1;
|
|
ehdr.e_shoff = sh_offset;
|
|
ehdr.e_shentsize = sizeof(Elf32_Shdr);
|
|
ehdr.e_shnum = 3;
|
|
memory_.SetMemory(0, &ehdr, sizeof(ehdr));
|
|
|
|
Elf32_Shdr shdr = {};
|
|
shdr.sh_type = SHT_NULL;
|
|
memory_.SetMemory(sh_offset, &shdr, sizeof(shdr));
|
|
|
|
sh_offset += sizeof(shdr);
|
|
memset(&shdr, 0, sizeof(shdr));
|
|
shdr.sh_type = SHT_STRTAB;
|
|
shdr.sh_name = 1;
|
|
shdr.sh_offset = 0x500;
|
|
shdr.sh_size = 0x100;
|
|
memory_.SetMemory(sh_offset, &shdr, sizeof(shdr));
|
|
memory_.SetMemory(0x500, ".eh_frame");
|
|
|
|
sh_offset += sizeof(shdr);
|
|
memset(&shdr, 0, sizeof(shdr));
|
|
shdr.sh_type = SHT_PROGBITS;
|
|
shdr.sh_name = 0;
|
|
shdr.sh_addr = 0x600;
|
|
shdr.sh_offset = 0x600;
|
|
shdr.sh_size = 0x200;
|
|
memory_.SetMemory(sh_offset, &shdr, sizeof(shdr));
|
|
|
|
// CIE 32.
|
|
memory_.SetData32(0x600, 0xfc);
|
|
memory_.SetData32(0x604, 0);
|
|
memory_.SetMemory(0x608, std::vector<uint8_t>{1, '\0', 4, 4, 1});
|
|
|
|
// FDE 32.
|
|
memory_.SetData32(0x700, 0xfc);
|
|
memory_.SetData32(0x704, 0x104);
|
|
memory_.SetData32(0x708, 0x20f8);
|
|
memory_.SetData32(0x70c, 0x200);
|
|
|
|
int64_t load_bias = 0;
|
|
ASSERT_TRUE(elf->Init(&load_bias));
|
|
elf->InitHeaders();
|
|
EXPECT_EQ(0, load_bias);
|
|
EXPECT_FALSE(elf->IsValidPc(0));
|
|
EXPECT_FALSE(elf->IsValidPc(0x27ff));
|
|
EXPECT_TRUE(elf->IsValidPc(0x2800));
|
|
EXPECT_TRUE(elf->IsValidPc(0x2900));
|
|
EXPECT_TRUE(elf->IsValidPc(0x29ff));
|
|
EXPECT_FALSE(elf->IsValidPc(0x2a00));
|
|
}
|
|
|
|
template <typename Ehdr, typename Shdr, typename Nhdr, typename ElfInterfaceType>
|
|
void ElfInterfaceTest::BuildID() {
|
|
std::unique_ptr<ElfInterfaceType> elf(new ElfInterfaceType(&memory_));
|
|
|
|
uint64_t offset = 0x2000;
|
|
|
|
Ehdr ehdr = {};
|
|
ehdr.e_shoff = offset;
|
|
ehdr.e_shnum = 3;
|
|
ehdr.e_shentsize = sizeof(Shdr);
|
|
ehdr.e_shstrndx = 2;
|
|
memory_.SetMemory(0, &ehdr, sizeof(ehdr));
|
|
|
|
offset += ehdr.e_shentsize;
|
|
|
|
char note_section[128];
|
|
Nhdr note_header = {};
|
|
note_header.n_namesz = 4; // "GNU"
|
|
note_header.n_descsz = 7; // "BUILDID"
|
|
note_header.n_type = NT_GNU_BUILD_ID;
|
|
memcpy(¬e_section, ¬e_header, sizeof(note_header));
|
|
size_t note_offset = sizeof(note_header);
|
|
// The note information contains the GNU and trailing '\0'.
|
|
memcpy(¬e_section[note_offset], "GNU", sizeof("GNU"));
|
|
note_offset += sizeof("GNU");
|
|
// This part of the note does not contain any trailing '\0'.
|
|
memcpy(¬e_section[note_offset], "BUILDID", 7);
|
|
|
|
Shdr shdr = {};
|
|
shdr.sh_type = SHT_NOTE;
|
|
shdr.sh_name = 0x500;
|
|
shdr.sh_offset = 0xb000;
|
|
shdr.sh_size = sizeof(note_section);
|
|
memory_.SetMemory(offset, &shdr, sizeof(shdr));
|
|
offset += ehdr.e_shentsize;
|
|
|
|
// The string data for section header names.
|
|
memset(&shdr, 0, sizeof(shdr));
|
|
shdr.sh_type = SHT_STRTAB;
|
|
shdr.sh_name = 0x20000;
|
|
shdr.sh_offset = 0xf000;
|
|
shdr.sh_size = 0x1000;
|
|
memory_.SetMemory(offset, &shdr, sizeof(shdr));
|
|
|
|
memory_.SetMemory(0xf500, ".note.gnu.build-id", sizeof(".note.gnu.build-id"));
|
|
memory_.SetMemory(0xb000, note_section, sizeof(note_section));
|
|
|
|
int64_t load_bias = 0;
|
|
ASSERT_TRUE(elf->Init(&load_bias));
|
|
ASSERT_EQ("BUILDID", elf->GetBuildID());
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, build_id_32) {
|
|
BuildID<Elf32_Ehdr, Elf32_Shdr, Elf32_Nhdr, ElfInterface32>();
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, build_id_64) {
|
|
BuildID<Elf64_Ehdr, Elf64_Shdr, Elf64_Nhdr, ElfInterface64>();
|
|
}
|
|
|
|
template <typename Ehdr, typename Shdr, typename Nhdr, typename ElfInterfaceType>
|
|
void ElfInterfaceTest::BuildIDTwoNotes() {
|
|
std::unique_ptr<ElfInterfaceType> elf(new ElfInterfaceType(&memory_));
|
|
|
|
uint64_t offset = 0x2000;
|
|
|
|
Ehdr ehdr = {};
|
|
ehdr.e_shoff = offset;
|
|
ehdr.e_shnum = 3;
|
|
ehdr.e_shentsize = sizeof(Shdr);
|
|
ehdr.e_shstrndx = 2;
|
|
memory_.SetMemory(0, &ehdr, sizeof(ehdr));
|
|
|
|
offset += ehdr.e_shentsize;
|
|
|
|
char note_section[128];
|
|
Nhdr note_header = {};
|
|
note_header.n_namesz = 8; // "WRONG" aligned to 4
|
|
note_header.n_descsz = 7; // "BUILDID"
|
|
note_header.n_type = NT_GNU_BUILD_ID;
|
|
memcpy(¬e_section, ¬e_header, sizeof(note_header));
|
|
size_t note_offset = sizeof(note_header);
|
|
memcpy(¬e_section[note_offset], "WRONG", sizeof("WRONG"));
|
|
note_offset += 8;
|
|
// This part of the note does not contain any trailing '\0'.
|
|
memcpy(¬e_section[note_offset], "BUILDID", 7);
|
|
note_offset += 8;
|
|
|
|
note_header.n_namesz = 4; // "GNU"
|
|
note_header.n_descsz = 7; // "BUILDID"
|
|
note_header.n_type = NT_GNU_BUILD_ID;
|
|
memcpy(¬e_section[note_offset], ¬e_header, sizeof(note_header));
|
|
note_offset += sizeof(note_header);
|
|
// The note information contains the GNU and trailing '\0'.
|
|
memcpy(¬e_section[note_offset], "GNU", sizeof("GNU"));
|
|
note_offset += sizeof("GNU");
|
|
// This part of the note does not contain any trailing '\0'.
|
|
memcpy(¬e_section[note_offset], "BUILDID", 7);
|
|
|
|
Shdr shdr = {};
|
|
shdr.sh_type = SHT_NOTE;
|
|
shdr.sh_name = 0x500;
|
|
shdr.sh_offset = 0xb000;
|
|
shdr.sh_size = sizeof(note_section);
|
|
memory_.SetMemory(offset, &shdr, sizeof(shdr));
|
|
offset += ehdr.e_shentsize;
|
|
|
|
// The string data for section header names.
|
|
memset(&shdr, 0, sizeof(shdr));
|
|
shdr.sh_type = SHT_STRTAB;
|
|
shdr.sh_name = 0x20000;
|
|
shdr.sh_offset = 0xf000;
|
|
shdr.sh_size = 0x1000;
|
|
memory_.SetMemory(offset, &shdr, sizeof(shdr));
|
|
|
|
memory_.SetMemory(0xf500, ".note.gnu.build-id", sizeof(".note.gnu.build-id"));
|
|
memory_.SetMemory(0xb000, note_section, sizeof(note_section));
|
|
|
|
int64_t load_bias = 0;
|
|
ASSERT_TRUE(elf->Init(&load_bias));
|
|
ASSERT_EQ("BUILDID", elf->GetBuildID());
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, build_id_two_notes_32) {
|
|
BuildIDTwoNotes<Elf32_Ehdr, Elf32_Shdr, Elf32_Nhdr, ElfInterface32>();
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, build_id_two_notes_64) {
|
|
BuildIDTwoNotes<Elf64_Ehdr, Elf64_Shdr, Elf64_Nhdr, ElfInterface64>();
|
|
}
|
|
|
|
template <typename Ehdr, typename Shdr, typename Nhdr, typename ElfInterfaceType>
|
|
void ElfInterfaceTest::BuildIDSectionTooSmallForName () {
|
|
std::unique_ptr<ElfInterfaceType> elf(new ElfInterfaceType(&memory_));
|
|
|
|
uint64_t offset = 0x2000;
|
|
|
|
Ehdr ehdr = {};
|
|
ehdr.e_shoff = offset;
|
|
ehdr.e_shnum = 3;
|
|
ehdr.e_shentsize = sizeof(Shdr);
|
|
ehdr.e_shstrndx = 2;
|
|
memory_.SetMemory(0, &ehdr, sizeof(ehdr));
|
|
|
|
offset += ehdr.e_shentsize;
|
|
|
|
char note_section[128];
|
|
Nhdr note_header = {};
|
|
note_header.n_namesz = 4; // "GNU"
|
|
note_header.n_descsz = 7; // "BUILDID"
|
|
note_header.n_type = NT_GNU_BUILD_ID;
|
|
memcpy(¬e_section, ¬e_header, sizeof(note_header));
|
|
size_t note_offset = sizeof(note_header);
|
|
// The note information contains the GNU and trailing '\0'.
|
|
memcpy(¬e_section[note_offset], "GNU", sizeof("GNU"));
|
|
note_offset += sizeof("GNU");
|
|
// This part of the note does not contain any trailing '\0'.
|
|
memcpy(¬e_section[note_offset], "BUILDID", 7);
|
|
|
|
Shdr shdr = {};
|
|
shdr.sh_type = SHT_NOTE;
|
|
shdr.sh_name = 0x500;
|
|
shdr.sh_offset = 0xb000;
|
|
shdr.sh_size = sizeof(note_header) + 1;
|
|
memory_.SetMemory(offset, &shdr, sizeof(shdr));
|
|
offset += ehdr.e_shentsize;
|
|
|
|
// The string data for section header names.
|
|
memset(&shdr, 0, sizeof(shdr));
|
|
shdr.sh_type = SHT_STRTAB;
|
|
shdr.sh_name = 0x20000;
|
|
shdr.sh_offset = 0xf000;
|
|
shdr.sh_size = 0x1000;
|
|
memory_.SetMemory(offset, &shdr, sizeof(shdr));
|
|
|
|
memory_.SetMemory(0xf500, ".note.gnu.build-id", sizeof(".note.gnu.build-id"));
|
|
memory_.SetMemory(0xb000, note_section, sizeof(note_section));
|
|
|
|
int64_t load_bias = 0;
|
|
ASSERT_TRUE(elf->Init(&load_bias));
|
|
ASSERT_EQ("", elf->GetBuildID());
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, build_id_section_too_small_for_name_32) {
|
|
BuildIDSectionTooSmallForName<Elf32_Ehdr, Elf32_Shdr, Elf32_Nhdr, ElfInterface32>();
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, build_id_section_too_small_for_name_64) {
|
|
BuildIDSectionTooSmallForName<Elf64_Ehdr, Elf64_Shdr, Elf64_Nhdr, ElfInterface64>();
|
|
}
|
|
|
|
template <typename Ehdr, typename Shdr, typename Nhdr, typename ElfInterfaceType>
|
|
void ElfInterfaceTest::BuildIDSectionTooSmallForDesc () {
|
|
std::unique_ptr<ElfInterfaceType> elf(new ElfInterfaceType(&memory_));
|
|
|
|
uint64_t offset = 0x2000;
|
|
|
|
Ehdr ehdr = {};
|
|
ehdr.e_shoff = offset;
|
|
ehdr.e_shnum = 3;
|
|
ehdr.e_shentsize = sizeof(Shdr);
|
|
ehdr.e_shstrndx = 2;
|
|
memory_.SetMemory(0, &ehdr, sizeof(ehdr));
|
|
|
|
offset += ehdr.e_shentsize;
|
|
|
|
char note_section[128];
|
|
Nhdr note_header = {};
|
|
note_header.n_namesz = 4; // "GNU"
|
|
note_header.n_descsz = 7; // "BUILDID"
|
|
note_header.n_type = NT_GNU_BUILD_ID;
|
|
memcpy(¬e_section, ¬e_header, sizeof(note_header));
|
|
size_t note_offset = sizeof(note_header);
|
|
// The note information contains the GNU and trailing '\0'.
|
|
memcpy(¬e_section[note_offset], "GNU", sizeof("GNU"));
|
|
note_offset += sizeof("GNU");
|
|
// This part of the note does not contain any trailing '\0'.
|
|
memcpy(¬e_section[note_offset], "BUILDID", 7);
|
|
|
|
Shdr shdr = {};
|
|
shdr.sh_type = SHT_NOTE;
|
|
shdr.sh_name = 0x500;
|
|
shdr.sh_offset = 0xb000;
|
|
shdr.sh_size = sizeof(note_header) + sizeof("GNU") + 1;
|
|
memory_.SetMemory(offset, &shdr, sizeof(shdr));
|
|
offset += ehdr.e_shentsize;
|
|
|
|
// The string data for section header names.
|
|
memset(&shdr, 0, sizeof(shdr));
|
|
shdr.sh_type = SHT_STRTAB;
|
|
shdr.sh_name = 0x20000;
|
|
shdr.sh_offset = 0xf000;
|
|
shdr.sh_size = 0x1000;
|
|
memory_.SetMemory(offset, &shdr, sizeof(shdr));
|
|
|
|
memory_.SetMemory(0xf500, ".note.gnu.build-id", sizeof(".note.gnu.build-id"));
|
|
memory_.SetMemory(0xb000, note_section, sizeof(note_section));
|
|
|
|
int64_t load_bias = 0;
|
|
ASSERT_TRUE(elf->Init(&load_bias));
|
|
ASSERT_EQ("", elf->GetBuildID());
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, build_id_section_too_small_for_desc_32) {
|
|
BuildIDSectionTooSmallForDesc<Elf32_Ehdr, Elf32_Shdr, Elf32_Nhdr, ElfInterface32>();
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, build_id_section_too_small_for_desc_64) {
|
|
BuildIDSectionTooSmallForDesc<Elf64_Ehdr, Elf64_Shdr, Elf64_Nhdr, ElfInterface64>();
|
|
}
|
|
|
|
template <typename Ehdr, typename Shdr, typename Nhdr, typename ElfInterfaceType>
|
|
void ElfInterfaceTest::BuildIDSectionTooSmallForHeader () {
|
|
std::unique_ptr<ElfInterfaceType> elf(new ElfInterfaceType(&memory_));
|
|
|
|
uint64_t offset = 0x2000;
|
|
|
|
Ehdr ehdr = {};
|
|
ehdr.e_shoff = offset;
|
|
ehdr.e_shnum = 3;
|
|
ehdr.e_shentsize = sizeof(Shdr);
|
|
ehdr.e_shstrndx = 2;
|
|
memory_.SetMemory(0, &ehdr, sizeof(ehdr));
|
|
|
|
offset += ehdr.e_shentsize;
|
|
|
|
char note_section[128];
|
|
Nhdr note_header = {};
|
|
note_header.n_namesz = 4; // "GNU"
|
|
note_header.n_descsz = 7; // "BUILDID"
|
|
note_header.n_type = NT_GNU_BUILD_ID;
|
|
memcpy(¬e_section, ¬e_header, sizeof(note_header));
|
|
size_t note_offset = sizeof(note_header);
|
|
// The note information contains the GNU and trailing '\0'.
|
|
memcpy(¬e_section[note_offset], "GNU", sizeof("GNU"));
|
|
note_offset += sizeof("GNU");
|
|
// This part of the note does not contain any trailing '\0'.
|
|
memcpy(¬e_section[note_offset], "BUILDID", 7);
|
|
|
|
Shdr shdr = {};
|
|
shdr.sh_type = SHT_NOTE;
|
|
shdr.sh_name = 0x500;
|
|
shdr.sh_offset = 0xb000;
|
|
shdr.sh_size = sizeof(note_header) - 1;
|
|
memory_.SetMemory(offset, &shdr, sizeof(shdr));
|
|
offset += ehdr.e_shentsize;
|
|
|
|
// The string data for section header names.
|
|
memset(&shdr, 0, sizeof(shdr));
|
|
shdr.sh_type = SHT_STRTAB;
|
|
shdr.sh_name = 0x20000;
|
|
shdr.sh_offset = 0xf000;
|
|
shdr.sh_size = 0x1000;
|
|
memory_.SetMemory(offset, &shdr, sizeof(shdr));
|
|
|
|
memory_.SetMemory(0xf500, ".note.gnu.build-id", sizeof(".note.gnu.build-id"));
|
|
memory_.SetMemory(0xb000, note_section, sizeof(note_section));
|
|
|
|
int64_t load_bias = 0;
|
|
ASSERT_TRUE(elf->Init(&load_bias));
|
|
ASSERT_EQ("", elf->GetBuildID());
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, build_id_section_too_small_for_header_32) {
|
|
BuildIDSectionTooSmallForHeader<Elf32_Ehdr, Elf32_Shdr, Elf32_Nhdr, ElfInterface32>();
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, build_id_section_too_small_for_header_64) {
|
|
BuildIDSectionTooSmallForHeader<Elf64_Ehdr, Elf64_Shdr, Elf64_Nhdr, ElfInterface64>();
|
|
}
|
|
|
|
template <typename Ehdr, typename Phdr, typename ElfInterfaceType>
|
|
void ElfInterfaceTest::CheckLoadBiasInFirstPhdr(int64_t load_bias) {
|
|
Ehdr ehdr = {};
|
|
ehdr.e_phoff = 0x100;
|
|
ehdr.e_phnum = 2;
|
|
ehdr.e_phentsize = sizeof(Phdr);
|
|
memory_.SetMemory(0, &ehdr, sizeof(ehdr));
|
|
|
|
Phdr phdr = {};
|
|
phdr.p_type = PT_LOAD;
|
|
phdr.p_offset = 0;
|
|
phdr.p_vaddr = load_bias;
|
|
phdr.p_memsz = 0x10000;
|
|
phdr.p_flags = PF_R | PF_X;
|
|
phdr.p_align = 0x1000;
|
|
memory_.SetMemory(0x100, &phdr, sizeof(phdr));
|
|
|
|
memset(&phdr, 0, sizeof(phdr));
|
|
phdr.p_type = PT_LOAD;
|
|
phdr.p_offset = 0x1000;
|
|
phdr.p_memsz = 0x2000;
|
|
phdr.p_flags = PF_R | PF_X;
|
|
phdr.p_align = 0x1000;
|
|
memory_.SetMemory(0x100 + sizeof(phdr), &phdr, sizeof(phdr));
|
|
|
|
int64_t static_load_bias = ElfInterface::GetLoadBias<Ehdr, Phdr>(&memory_);
|
|
ASSERT_EQ(load_bias, static_load_bias);
|
|
|
|
std::unique_ptr<ElfInterfaceType> elf(new ElfInterfaceType(&memory_));
|
|
int64_t init_load_bias = 0;
|
|
ASSERT_TRUE(elf->Init(&init_load_bias));
|
|
ASSERT_EQ(init_load_bias, static_load_bias);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, get_load_bias_zero_32) {
|
|
CheckLoadBiasInFirstPhdr<Elf32_Ehdr, Elf32_Phdr, ElfInterface32>(0);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, get_load_bias_zero_64) {
|
|
CheckLoadBiasInFirstPhdr<Elf64_Ehdr, Elf64_Phdr, ElfInterface64>(0);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, get_load_bias_non_zero_32) {
|
|
CheckLoadBiasInFirstPhdr<Elf32_Ehdr, Elf32_Phdr, ElfInterface32>(0x1000);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, get_load_bias_non_zero_64) {
|
|
CheckLoadBiasInFirstPhdr<Elf64_Ehdr, Elf64_Phdr, ElfInterface64>(0x1000);
|
|
}
|
|
|
|
template <typename Ehdr, typename Phdr, typename ElfInterfaceType>
|
|
void ElfInterfaceTest::CheckLoadBiasInFirstExecPhdr(uint64_t offset, uint64_t vaddr,
|
|
int64_t load_bias) {
|
|
Ehdr ehdr = {};
|
|
ehdr.e_phoff = 0x100;
|
|
ehdr.e_phnum = 3;
|
|
ehdr.e_phentsize = sizeof(Phdr);
|
|
memory_.SetMemory(0, &ehdr, sizeof(ehdr));
|
|
|
|
Phdr phdr = {};
|
|
phdr.p_type = PT_LOAD;
|
|
phdr.p_memsz = 0x10000;
|
|
phdr.p_flags = PF_R;
|
|
phdr.p_align = 0x1000;
|
|
memory_.SetMemory(0x100, &phdr, sizeof(phdr));
|
|
|
|
memset(&phdr, 0, sizeof(phdr));
|
|
phdr.p_type = PT_LOAD;
|
|
phdr.p_offset = offset;
|
|
phdr.p_vaddr = vaddr;
|
|
phdr.p_memsz = 0x2000;
|
|
phdr.p_flags = PF_R | PF_X;
|
|
phdr.p_align = 0x1000;
|
|
memory_.SetMemory(0x100 + sizeof(phdr), &phdr, sizeof(phdr));
|
|
|
|
// Second executable load should be ignored for load bias computation.
|
|
memset(&phdr, 0, sizeof(phdr));
|
|
phdr.p_type = PT_LOAD;
|
|
phdr.p_offset = 0x1234;
|
|
phdr.p_vaddr = 0x2000;
|
|
phdr.p_memsz = 0x2000;
|
|
phdr.p_flags = PF_R | PF_X;
|
|
phdr.p_align = 0x1000;
|
|
memory_.SetMemory(0x200 + sizeof(phdr), &phdr, sizeof(phdr));
|
|
|
|
int64_t static_load_bias = ElfInterface::GetLoadBias<Ehdr, Phdr>(&memory_);
|
|
ASSERT_EQ(load_bias, static_load_bias);
|
|
|
|
std::unique_ptr<ElfInterfaceType> elf(new ElfInterfaceType(&memory_));
|
|
int64_t init_load_bias = 0;
|
|
ASSERT_TRUE(elf->Init(&init_load_bias));
|
|
ASSERT_EQ(init_load_bias, static_load_bias);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, get_load_bias_exec_zero_32) {
|
|
CheckLoadBiasInFirstExecPhdr<Elf32_Ehdr, Elf32_Phdr, ElfInterface32>(0x1000, 0x1000, 0);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, get_load_bias_exec_zero_64) {
|
|
CheckLoadBiasInFirstExecPhdr<Elf64_Ehdr, Elf64_Phdr, ElfInterface64>(0x1000, 0x1000, 0);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, get_load_bias_exec_positive_32) {
|
|
CheckLoadBiasInFirstExecPhdr<Elf32_Ehdr, Elf32_Phdr, ElfInterface32>(0x1000, 0x4000, 0x3000);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, get_load_bias_exec_positive_64) {
|
|
CheckLoadBiasInFirstExecPhdr<Elf64_Ehdr, Elf64_Phdr, ElfInterface64>(0x1000, 0x4000, 0x3000);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, get_load_bias_exec_negative_32) {
|
|
CheckLoadBiasInFirstExecPhdr<Elf32_Ehdr, Elf32_Phdr, ElfInterface32>(0x5000, 0x1000, -0x4000);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, get_load_bias_exec_negative_64) {
|
|
CheckLoadBiasInFirstExecPhdr<Elf64_Ehdr, Elf64_Phdr, ElfInterface64>(0x5000, 0x1000, -0x4000);
|
|
}
|
|
|
|
TEST_F(ElfInterfaceTest, huge_gnu_debugdata_size) {
|
|
ElfInterfaceFake interface(nullptr);
|
|
|
|
interface.FakeSetGnuDebugdataOffset(0x1000);
|
|
interface.FakeSetGnuDebugdataSize(0xffffffffffffffffUL);
|
|
ASSERT_TRUE(interface.CreateGnuDebugdataMemory() == nullptr);
|
|
|
|
interface.FakeSetGnuDebugdataSize(0x4000000000000UL);
|
|
ASSERT_TRUE(interface.CreateGnuDebugdataMemory() == nullptr);
|
|
|
|
// This should exceed the size_t value of the first allocation.
|
|
#if defined(__LP64__)
|
|
interface.FakeSetGnuDebugdataSize(0x3333333333333334ULL);
|
|
#else
|
|
interface.FakeSetGnuDebugdataSize(0x33333334);
|
|
#endif
|
|
ASSERT_TRUE(interface.CreateGnuDebugdataMemory() == nullptr);
|
|
}
|
|
|
|
} // namespace unwindstack
|