/thirdparty/breakpad/common/dwarf_cfi_to_module_unittest.cc
http://github.com/tomahawk-player/tomahawk · C++ · 294 lines · 231 code · 32 blank · 31 comment · 0 complexity · 51b09ff2d7c48b76d7b47e90e1ea1886 MD5 · raw file
- // Copyright (c) 2010, Google Inc.
- // All rights reserved.
- //
- // Redistribution and use in source and binary forms, with or without
- // modification, are permitted provided that the following conditions are
- // met:
- //
- // * Redistributions of source code must retain the above copyright
- // notice, this list of conditions and the following disclaimer.
- // * Redistributions in binary form must reproduce the above
- // copyright notice, this list of conditions and the following disclaimer
- // in the documentation and/or other materials provided with the
- // distribution.
- // * Neither the name of Google Inc. nor the names of its
- // contributors may be used to endorse or promote products derived from
- // this software without specific prior written permission.
- //
- // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- // Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com>
- // dwarf_cfi_to_module_unittest.cc: Tests for google_breakpad::DwarfCFIToModule.
- #include <string>
- #include <vector>
- #include "breakpad_googletest_includes.h"
- #include "common/dwarf_cfi_to_module.h"
- using std::string;
- using std::vector;
- using google_breakpad::Module;
- using google_breakpad::DwarfCFIToModule;
- using testing::ContainerEq;
- using testing::Test;
- using testing::_;
- struct MockCFIReporter: public DwarfCFIToModule::Reporter {
- MockCFIReporter(const string &file, const string §ion)
- : Reporter(file, section) { }
- MOCK_METHOD2(UnnamedRegister, void(size_t offset, int reg));
- MOCK_METHOD2(UndefinedNotSupported, void(size_t offset, const string ®));
- MOCK_METHOD2(ExpressionsNotSupported, void(size_t offset, const string ®));
- };
- struct DwarfCFIToModuleFixture {
- DwarfCFIToModuleFixture()
- : module("module name", "module os", "module arch", "module id"),
- reporter("reporter file", "reporter section"),
- handler(&module, register_names, &reporter) {
- register_names.push_back("reg0");
- register_names.push_back("reg1");
- register_names.push_back("reg2");
- register_names.push_back("reg3");
- register_names.push_back("reg4");
- register_names.push_back("reg5");
- register_names.push_back("reg6");
- register_names.push_back("reg7");
- register_names.push_back("sp");
- register_names.push_back("pc");
- EXPECT_CALL(reporter, UnnamedRegister(_, _)).Times(0);
- EXPECT_CALL(reporter, UndefinedNotSupported(_, _)).Times(0);
- EXPECT_CALL(reporter, ExpressionsNotSupported(_, _)).Times(0);
- }
- Module module;
- vector<string> register_names;
- MockCFIReporter reporter;
- DwarfCFIToModule handler;
- vector<Module::StackFrameEntry *> entries;
- };
- class Entry: public DwarfCFIToModuleFixture, public Test { };
- TEST_F(Entry, Accept) {
- ASSERT_TRUE(handler.Entry(0x3b8961b8, 0xa21069698096fc98ULL,
- 0xb440ce248169c8d6ULL, 3, "", 0xea93c106));
- ASSERT_TRUE(handler.End());
- module.GetStackFrameEntries(&entries);
- EXPECT_EQ(1U, entries.size());
- EXPECT_EQ(0xa21069698096fc98ULL, entries[0]->address);
- EXPECT_EQ(0xb440ce248169c8d6ULL, entries[0]->size);
- EXPECT_EQ(0U, entries[0]->initial_rules.size());
- EXPECT_EQ(0U, entries[0]->rule_changes.size());
- }
- TEST_F(Entry, AcceptOldVersion) {
- ASSERT_TRUE(handler.Entry(0xeb60e0fc, 0x75b8806bb09eab78ULL,
- 0xc771f44958d40bbcULL, 1, "", 0x093c945e));
- ASSERT_TRUE(handler.End());
- module.GetStackFrameEntries(&entries);
- EXPECT_EQ(1U, entries.size());
- EXPECT_EQ(0x75b8806bb09eab78ULL, entries[0]->address);
- EXPECT_EQ(0xc771f44958d40bbcULL, entries[0]->size);
- EXPECT_EQ(0U, entries[0]->initial_rules.size());
- EXPECT_EQ(0U, entries[0]->rule_changes.size());
- }
- struct RuleFixture: public DwarfCFIToModuleFixture {
- RuleFixture() : DwarfCFIToModuleFixture() {
- entry_address = 0x89327ebf86b47492ULL;
- entry_size = 0x2f8cd573072fe02aULL;
- return_reg = 0x7886a346;
- }
- void StartEntry() {
- ASSERT_TRUE(handler.Entry(0x4445c05c, entry_address, entry_size,
- 3, "", return_reg));
- }
- void CheckEntry() {
- module.GetStackFrameEntries(&entries);
- EXPECT_EQ(1U, entries.size());
- EXPECT_EQ(entry_address, entries[0]->address);
- EXPECT_EQ(entry_size, entries[0]->size);
- }
- uint64 entry_address, entry_size;
- unsigned return_reg;
- };
- class Rule: public RuleFixture, public Test { };
- TEST_F(Rule, UndefinedRule) {
- EXPECT_CALL(reporter, UndefinedNotSupported(_, "reg7"));
- StartEntry();
- ASSERT_TRUE(handler.UndefinedRule(entry_address, 7));
- ASSERT_TRUE(handler.End());
- CheckEntry();
- EXPECT_EQ(0U, entries[0]->initial_rules.size());
- EXPECT_EQ(0U, entries[0]->rule_changes.size());
- }
- TEST_F(Rule, SameValueRule) {
- StartEntry();
- ASSERT_TRUE(handler.SameValueRule(entry_address, 6));
- ASSERT_TRUE(handler.End());
- CheckEntry();
- Module::RuleMap expected_initial;
- expected_initial["reg6"] = "reg6";
- EXPECT_THAT(entries[0]->initial_rules, ContainerEq(expected_initial));
- EXPECT_EQ(0U, entries[0]->rule_changes.size());
- }
- TEST_F(Rule, OffsetRule) {
- StartEntry();
- ASSERT_TRUE(handler.OffsetRule(entry_address + 1, return_reg,
- DwarfCFIToModule::kCFARegister,
- 16927065));
- ASSERT_TRUE(handler.End());
- CheckEntry();
- EXPECT_EQ(0U, entries[0]->initial_rules.size());
- Module::RuleChangeMap expected_changes;
- expected_changes[entry_address + 1][".ra"] = ".cfa 16927065 + ^";
- EXPECT_THAT(entries[0]->rule_changes, ContainerEq(expected_changes));
- }
- TEST_F(Rule, OffsetRuleNegative) {
- StartEntry();
- ASSERT_TRUE(handler.OffsetRule(entry_address + 1,
- DwarfCFIToModule::kCFARegister, 4, -34530721));
- ASSERT_TRUE(handler.End());
- CheckEntry();
- EXPECT_EQ(0U, entries[0]->initial_rules.size());
- Module::RuleChangeMap expected_changes;
- expected_changes[entry_address + 1][".cfa"] = "reg4 -34530721 + ^";
- EXPECT_THAT(entries[0]->rule_changes, ContainerEq(expected_changes));
- }
- TEST_F(Rule, ValOffsetRule) {
- // Use an unnamed register number, to exercise that branch of RegisterName.
- EXPECT_CALL(reporter, UnnamedRegister(_, 10));
- StartEntry();
- ASSERT_TRUE(handler.ValOffsetRule(entry_address + 0x5ab7,
- DwarfCFIToModule::kCFARegister,
- 10, 61812979));
- ASSERT_TRUE(handler.End());
- CheckEntry();
- EXPECT_EQ(0U, entries[0]->initial_rules.size());
- Module::RuleChangeMap expected_changes;
- expected_changes[entry_address + 0x5ab7][".cfa"] =
- "unnamed_register10 61812979 +";
- EXPECT_THAT(entries[0]->rule_changes, ContainerEq(expected_changes));
- }
- TEST_F(Rule, RegisterRule) {
- StartEntry();
- ASSERT_TRUE(handler.RegisterRule(entry_address, return_reg, 3));
- ASSERT_TRUE(handler.End());
- CheckEntry();
- Module::RuleMap expected_initial;
- expected_initial[".ra"] = "reg3";
- EXPECT_THAT(entries[0]->initial_rules, ContainerEq(expected_initial));
- EXPECT_EQ(0U, entries[0]->rule_changes.size());
- }
- TEST_F(Rule, ExpressionRule) {
- EXPECT_CALL(reporter, ExpressionsNotSupported(_, "reg2"));
- StartEntry();
- ASSERT_TRUE(handler.ExpressionRule(entry_address + 0xf326, 2,
- "it takes two to tango"));
- ASSERT_TRUE(handler.End());
- CheckEntry();
- EXPECT_EQ(0U, entries[0]->initial_rules.size());
- EXPECT_EQ(0U, entries[0]->rule_changes.size());
- }
- TEST_F(Rule, ValExpressionRule) {
- EXPECT_CALL(reporter, ExpressionsNotSupported(_, "reg0"));
- StartEntry();
- ASSERT_TRUE(handler.ValExpressionRule(entry_address + 0x6367, 0,
- "bit off more than he could chew"));
- ASSERT_TRUE(handler.End());
- CheckEntry();
- EXPECT_EQ(0U, entries[0]->initial_rules.size());
- EXPECT_EQ(0U, entries[0]->rule_changes.size());
- }
- TEST_F(Rule, DefaultReturnAddressRule) {
- return_reg = 2;
- StartEntry();
- ASSERT_TRUE(handler.RegisterRule(entry_address, 0, 1));
- ASSERT_TRUE(handler.End());
- CheckEntry();
- Module::RuleMap expected_initial;
- expected_initial[".ra"] = "reg2";
- expected_initial["reg0"] = "reg1";
- EXPECT_THAT(entries[0]->initial_rules, ContainerEq(expected_initial));
- EXPECT_EQ(0U, entries[0]->rule_changes.size());
- }
- TEST_F(Rule, DefaultReturnAddressRuleOverride) {
- return_reg = 2;
- StartEntry();
- ASSERT_TRUE(handler.RegisterRule(entry_address, return_reg, 1));
- ASSERT_TRUE(handler.End());
- CheckEntry();
- Module::RuleMap expected_initial;
- expected_initial[".ra"] = "reg1";
- EXPECT_THAT(entries[0]->initial_rules, ContainerEq(expected_initial));
- EXPECT_EQ(0U, entries[0]->rule_changes.size());
- }
- TEST_F(Rule, DefaultReturnAddressRuleLater) {
- return_reg = 2;
- StartEntry();
- ASSERT_TRUE(handler.RegisterRule(entry_address + 1, return_reg, 1));
- ASSERT_TRUE(handler.End());
- CheckEntry();
- Module::RuleMap expected_initial;
- expected_initial[".ra"] = "reg2";
- EXPECT_THAT(entries[0]->initial_rules, ContainerEq(expected_initial));
- Module::RuleChangeMap expected_changes;
- expected_changes[entry_address + 1][".ra"] = "reg1";
- EXPECT_THAT(entries[0]->rule_changes, ContainerEq(expected_changes));
- }
- TEST(RegisterNames, I386) {
- vector<string> names = DwarfCFIToModule::RegisterNames::I386();
- EXPECT_EQ("$eax", names[0]);
- EXPECT_EQ("$ecx", names[1]);
- EXPECT_EQ("$esp", names[4]);
- EXPECT_EQ("$eip", names[8]);
- }
- TEST(RegisterNames, ARM) {
- vector<string> names = DwarfCFIToModule::RegisterNames::ARM();
- EXPECT_EQ("r0", names[0]);
- EXPECT_EQ("r10", names[10]);
- EXPECT_EQ("sp", names[13]);
- EXPECT_EQ("lr", names[14]);
- EXPECT_EQ("pc", names[15]);
- }
- TEST(RegisterNames, X86_64) {
- vector<string> names = DwarfCFIToModule::RegisterNames::X86_64();
- EXPECT_EQ("$rax", names[0]);
- EXPECT_EQ("$rdx", names[1]);
- EXPECT_EQ("$rbp", names[6]);
- EXPECT_EQ("$rsp", names[7]);
- EXPECT_EQ("$rip", names[16]);
- }