525 lines
21 KiB
C++
525 lines
21 KiB
C++
// -*- mode: c++ -*-
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// Copyright (c) 2010 Google Inc. All Rights Reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com>
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// dwarf2diehander_unittest.cc: Unit tests for google_breakpad::DIEDispatcher.
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#include <string>
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#include <utility>
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#include "breakpad_googletest_includes.h"
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#include "common/dwarf/dwarf2diehandler.h"
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#include "common/using_std_string.h"
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using std::make_pair;
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using ::testing::_;
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using ::testing::ContainerEq;
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using ::testing::ElementsAreArray;
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using ::testing::Eq;
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using ::testing::InSequence;
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using ::testing::Return;
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using ::testing::Sequence;
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using ::testing::StrEq;
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using dwarf2reader::DIEDispatcher;
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using dwarf2reader::DIEHandler;
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using dwarf2reader::DwarfAttribute;
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using dwarf2reader::DwarfForm;
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using dwarf2reader::DwarfTag;
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using dwarf2reader::RootDIEHandler;
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class MockDIEHandler: public DIEHandler {
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public:
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MOCK_METHOD3(ProcessAttributeUnsigned,
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void(DwarfAttribute, DwarfForm, uint64));
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MOCK_METHOD3(ProcessAttributeSigned,
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void(DwarfAttribute, DwarfForm, int64));
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MOCK_METHOD3(ProcessAttributeReference,
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void(DwarfAttribute, DwarfForm, uint64));
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MOCK_METHOD4(ProcessAttributeBuffer,
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void(DwarfAttribute, DwarfForm, const char *, uint64));
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MOCK_METHOD3(ProcessAttributeString,
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void(DwarfAttribute, DwarfForm, const string &));
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MOCK_METHOD3(ProcessAttributeSignature,
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void(DwarfAttribute, DwarfForm, uint64));
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MOCK_METHOD0(EndAttributes, bool());
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MOCK_METHOD2(FindChildHandler, DIEHandler *(uint64, DwarfTag));
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MOCK_METHOD0(Finish, void());
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};
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class MockRootDIEHandler: public RootDIEHandler {
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public:
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MOCK_METHOD3(ProcessAttributeUnsigned,
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void(DwarfAttribute, DwarfForm, uint64));
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MOCK_METHOD3(ProcessAttributeSigned,
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void(DwarfAttribute, DwarfForm, int64));
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MOCK_METHOD3(ProcessAttributeReference,
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void(DwarfAttribute, DwarfForm, uint64));
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MOCK_METHOD4(ProcessAttributeBuffer,
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void(DwarfAttribute, DwarfForm, const char *, uint64));
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MOCK_METHOD3(ProcessAttributeString,
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void(DwarfAttribute, DwarfForm, const string &));
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MOCK_METHOD3(ProcessAttributeSignature,
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void(DwarfAttribute, DwarfForm, uint64));
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MOCK_METHOD0(EndAttributes, bool());
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MOCK_METHOD2(FindChildHandler, DIEHandler *(uint64, DwarfTag));
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MOCK_METHOD0(Finish, void());
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MOCK_METHOD5(StartCompilationUnit, bool(uint64, uint8, uint8, uint64, uint8));
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MOCK_METHOD2(StartRootDIE, bool(uint64, DwarfTag));
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};
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// If the handler elects to skip the compilation unit, the dispatcher
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// should tell the reader so.
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TEST(Dwarf2DIEHandler, SkipCompilationUnit) {
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Sequence s;
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MockRootDIEHandler mock_root_handler;
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DIEDispatcher die_dispatcher(&mock_root_handler);
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EXPECT_CALL(mock_root_handler,
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StartCompilationUnit(0x8d42aed77cfccf3eLL,
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0x89, 0xdc,
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0x2ecb4dc778a80f21LL,
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0x66))
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.InSequence(s)
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.WillOnce(Return(false));
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EXPECT_FALSE(die_dispatcher.StartCompilationUnit(0x8d42aed77cfccf3eLL,
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0x89, 0xdc,
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0x2ecb4dc778a80f21LL,
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0x66));
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}
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// If the handler elects to skip the root DIE, the dispatcher should
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// tell the reader so.
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TEST(Dwarf2DIEHandler, SkipRootDIE) {
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Sequence s;
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MockRootDIEHandler mock_root_handler;
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DIEDispatcher die_dispatcher(&mock_root_handler);
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EXPECT_CALL(mock_root_handler,
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StartCompilationUnit(0xde8994029fc8b999LL, 0xf4, 0x02,
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0xb00febffa76e2b2bLL, 0x5c))
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.InSequence(s)
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.WillOnce(Return(true));
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EXPECT_CALL(mock_root_handler,
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StartRootDIE(0x7d08242b4b510cf2LL, (DwarfTag) 0xb4f98da6))
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.InSequence(s)
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.WillOnce(Return(false));
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EXPECT_TRUE(die_dispatcher.StartCompilationUnit(0xde8994029fc8b999LL,
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0xf4, 0x02,
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0xb00febffa76e2b2bLL, 0x5c));
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EXPECT_FALSE(die_dispatcher.StartDIE(0x7d08242b4b510cf2LL,
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(DwarfTag) 0xb4f98da6));
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die_dispatcher.EndDIE(0x7d08242b4b510cf2LL);
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}
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// If the handler elects to skip the root DIE's children, the
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// dispatcher should tell the reader so --- and avoid deleting the
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// root handler.
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TEST(Dwarf2DIEHandler, SkipRootDIEChildren) {
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MockRootDIEHandler mock_root_handler;
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DIEDispatcher die_dispatcher(&mock_root_handler);
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{
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InSequence s;
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EXPECT_CALL(mock_root_handler,
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StartCompilationUnit(0x15d6897480cc65a7LL, 0x26, 0xa0,
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0x09f8bf0767f91675LL, 0xdb))
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.WillOnce(Return(true));
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EXPECT_CALL(mock_root_handler,
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StartRootDIE(0x7d08242b4b510cf2LL, (DwarfTag) 0xb4f98da6))
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.WillOnce(Return(true));
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// Please don't tell me about my children.
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EXPECT_CALL(mock_root_handler, EndAttributes())
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.WillOnce(Return(false));
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EXPECT_CALL(mock_root_handler, Finish())
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.WillOnce(Return());
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}
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EXPECT_TRUE(die_dispatcher.StartCompilationUnit(0x15d6897480cc65a7LL,
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0x26, 0xa0,
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0x09f8bf0767f91675LL, 0xdb));
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EXPECT_TRUE(die_dispatcher.StartDIE(0x7d08242b4b510cf2LL,
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(DwarfTag) 0xb4f98da6));
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EXPECT_FALSE(die_dispatcher.StartDIE(0x435150ceedccda18LL,
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(DwarfTag) 0xc3a17bba));
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die_dispatcher.EndDIE(0x435150ceedccda18LL);
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die_dispatcher.EndDIE(0x7d08242b4b510cf2LL);
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}
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// The dispatcher should pass attribute values through to the die
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// handler accurately.
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TEST(Dwarf2DIEHandler, PassAttributeValues) {
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MockRootDIEHandler mock_root_handler;
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DIEDispatcher die_dispatcher(&mock_root_handler);
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const char buffer[10] = { 0x24, 0x24, 0x35, 0x9a, 0xca,
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0xcf, 0xa8, 0x84, 0xa7, 0x18 };
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string str = "\xc8\x26\x2e\x0d\xa4\x9c\x37\xd6\xfb\x1d";
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// Set expectations.
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{
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InSequence s;
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// We'll like the compilation unit header.
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EXPECT_CALL(mock_root_handler,
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StartCompilationUnit(0x8d42aed77cfccf3eLL, 0x89, 0xdc,
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0x2ecb4dc778a80f21LL, 0x66))
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.WillOnce(Return(true));
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// We'll like the root DIE.
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EXPECT_CALL(mock_root_handler,
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StartRootDIE(0xe2222da01e29f2a9LL, (DwarfTag) 0x9829445c))
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.WillOnce(Return(true));
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// Expect some attribute values.
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EXPECT_CALL(mock_root_handler,
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ProcessAttributeUnsigned((DwarfAttribute) 0x1cc0bfed,
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(DwarfForm) 0x424f1468,
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0xa592571997facda1ULL))
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.WillOnce(Return());
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EXPECT_CALL(mock_root_handler,
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ProcessAttributeSigned((DwarfAttribute) 0x43694dc9,
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(DwarfForm) 0xf6f78901L,
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0x92602a4e3bf1f446LL))
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.WillOnce(Return());
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EXPECT_CALL(mock_root_handler,
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ProcessAttributeReference((DwarfAttribute) 0x4033e8cL,
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(DwarfForm) 0xf66fbe0bL,
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0x50fddef44734fdecULL))
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.WillOnce(Return());
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EXPECT_CALL(mock_root_handler,
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ProcessAttributeBuffer((DwarfAttribute) 0x25d7e0af,
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(DwarfForm) 0xe99a539a,
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buffer, sizeof(buffer)))
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.WillOnce(Return());
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EXPECT_CALL(mock_root_handler,
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ProcessAttributeString((DwarfAttribute) 0x310ed065,
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(DwarfForm) 0x15762fec,
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StrEq(str)))
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.WillOnce(Return());
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EXPECT_CALL(mock_root_handler,
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ProcessAttributeSignature((DwarfAttribute) 0x58790d72,
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(DwarfForm) 0x4159f138,
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0x94682463613e6a5fULL))
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.WillOnce(Return());
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EXPECT_CALL(mock_root_handler, EndAttributes())
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.WillOnce(Return(true));
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EXPECT_CALL(mock_root_handler, FindChildHandler(_, _))
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.Times(0);
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EXPECT_CALL(mock_root_handler, Finish())
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.WillOnce(Return());
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}
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// Drive the dispatcher.
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// Report the CU header.
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EXPECT_TRUE(die_dispatcher.StartCompilationUnit(0x8d42aed77cfccf3eLL,
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0x89, 0xdc,
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0x2ecb4dc778a80f21LL,
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0x66));
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// Report the root DIE.
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EXPECT_TRUE(die_dispatcher.StartDIE(0xe2222da01e29f2a9LL,
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(DwarfTag) 0x9829445c));
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// Report some attribute values.
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die_dispatcher.ProcessAttributeUnsigned(0xe2222da01e29f2a9LL,
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(DwarfAttribute) 0x1cc0bfed,
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(DwarfForm) 0x424f1468,
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0xa592571997facda1ULL);
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die_dispatcher.ProcessAttributeSigned(0xe2222da01e29f2a9LL,
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(DwarfAttribute) 0x43694dc9,
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(DwarfForm) 0xf6f78901,
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0x92602a4e3bf1f446LL);
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die_dispatcher.ProcessAttributeReference(0xe2222da01e29f2a9LL,
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(DwarfAttribute) 0x4033e8c,
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(DwarfForm) 0xf66fbe0b,
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0x50fddef44734fdecULL);
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die_dispatcher.ProcessAttributeBuffer(0xe2222da01e29f2a9LL,
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(DwarfAttribute) 0x25d7e0af,
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(DwarfForm) 0xe99a539a,
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buffer, sizeof(buffer));
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die_dispatcher.ProcessAttributeString(0xe2222da01e29f2a9LL,
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(DwarfAttribute) 0x310ed065,
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(DwarfForm) 0x15762fec,
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str);
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die_dispatcher.ProcessAttributeSignature(0xe2222da01e29f2a9LL,
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(DwarfAttribute) 0x58790d72,
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(DwarfForm) 0x4159f138,
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0x94682463613e6a5fULL);
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// Finish the root DIE (and thus the CU).
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die_dispatcher.EndDIE(0xe2222da01e29f2a9LL);
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}
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TEST(Dwarf2DIEHandler, FindAndSkipChildren) {
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MockRootDIEHandler mock_root_handler;
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MockDIEHandler *mock_child1_handler = new(MockDIEHandler);
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MockDIEHandler *mock_child3_handler = new(MockDIEHandler);
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DIEDispatcher die_dispatcher(&mock_root_handler);
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{
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InSequence s;
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// We'll like the compilation unit header.
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EXPECT_CALL(mock_root_handler,
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StartCompilationUnit(0x9ec1e6d05e434a0eLL, 0xeb, 0x21,
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0x47dd3c764275a216LL, 0xa5))
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.WillOnce(Return(true));
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// Root DIE.
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{
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EXPECT_CALL(mock_root_handler,
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StartRootDIE(0x15f0e06bdfe3c372LL, (DwarfTag) 0xf5d60c59))
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.WillOnce(Return(true));
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EXPECT_CALL(mock_root_handler,
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ProcessAttributeSigned((DwarfAttribute) 0xf779a642,
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(DwarfForm) 0x2cb63027,
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0x18e744661769d08fLL))
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.WillOnce(Return());
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EXPECT_CALL(mock_root_handler, EndAttributes())
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.WillOnce(Return(true));
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// First child DIE.
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EXPECT_CALL(mock_root_handler,
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FindChildHandler(0x149f644f8116fe8cLL,
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(DwarfTag) 0xac2cbd8c))
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.WillOnce(Return(mock_child1_handler));
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{
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EXPECT_CALL(*mock_child1_handler,
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ProcessAttributeSigned((DwarfAttribute) 0xa6fd6f65,
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(DwarfForm) 0xe4f64c41,
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0x1b04e5444a55fe67LL))
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.WillOnce(Return());
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EXPECT_CALL(*mock_child1_handler, EndAttributes())
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.WillOnce(Return(false));
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// Skip first grandchild DIE and first great-grandchild DIE.
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EXPECT_CALL(*mock_child1_handler, Finish())
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.WillOnce(Return());
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}
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// Second child DIE. Root handler will decline to return a handler
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// for this child.
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EXPECT_CALL(mock_root_handler,
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FindChildHandler(0x97412be24875de9dLL,
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(DwarfTag) 0x505a068b))
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.WillOnce(Return((DIEHandler *) NULL));
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// Third child DIE.
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EXPECT_CALL(mock_root_handler,
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FindChildHandler(0x753c964c8ab538aeLL,
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(DwarfTag) 0x8c22970e))
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.WillOnce(Return(mock_child3_handler));
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{
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EXPECT_CALL(*mock_child3_handler,
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ProcessAttributeSigned((DwarfAttribute) 0x4e2b7cfb,
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(DwarfForm) 0x610b7ae1,
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0x3ea5c609d7d7560fLL))
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.WillOnce(Return());
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EXPECT_CALL(*mock_child3_handler, EndAttributes())
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.WillOnce(Return(true));
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EXPECT_CALL(*mock_child3_handler, Finish())
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.WillOnce(Return());
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}
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EXPECT_CALL(mock_root_handler, Finish())
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.WillOnce(Return());
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}
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}
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// Drive the dispatcher.
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// Report the CU header.
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EXPECT_TRUE(die_dispatcher
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.StartCompilationUnit(0x9ec1e6d05e434a0eLL, 0xeb, 0x21,
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0x47dd3c764275a216LL, 0xa5));
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// Report the root DIE.
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{
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EXPECT_TRUE(die_dispatcher.StartDIE(0x15f0e06bdfe3c372LL,
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(DwarfTag) 0xf5d60c59));
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die_dispatcher.ProcessAttributeSigned(0x15f0e06bdfe3c372LL,
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(DwarfAttribute) 0xf779a642,
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(DwarfForm) 0x2cb63027,
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0x18e744661769d08fLL);
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// First child DIE.
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{
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EXPECT_TRUE(die_dispatcher.StartDIE(0x149f644f8116fe8cLL,
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(DwarfTag) 0xac2cbd8c));
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die_dispatcher.ProcessAttributeSigned(0x149f644f8116fe8cLL,
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(DwarfAttribute) 0xa6fd6f65,
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(DwarfForm) 0xe4f64c41,
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0x1b04e5444a55fe67LL);
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// First grandchild DIE. Will be skipped.
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{
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EXPECT_FALSE(die_dispatcher.StartDIE(0xd68de1ee0bd29419LL,
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(DwarfTag) 0x22f05a15));
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// First great-grandchild DIE. Will be skipped without being
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// mentioned to any handler.
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{
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EXPECT_FALSE(die_dispatcher
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.StartDIE(0xb3076285d25cac25LL,
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(DwarfTag) 0xcff4061b));
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die_dispatcher.EndDIE(0xb3076285d25cac25LL);
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}
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die_dispatcher.EndDIE(0xd68de1ee0bd29419LL);
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}
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die_dispatcher.EndDIE(0x149f644f8116fe8cLL);
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}
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// Second child DIE. Root handler will decline to find a handler for it.
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{
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EXPECT_FALSE(die_dispatcher.StartDIE(0x97412be24875de9dLL,
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(DwarfTag) 0x505a068b));
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die_dispatcher.EndDIE(0x97412be24875de9dLL);
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}
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// Third child DIE.
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{
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EXPECT_TRUE(die_dispatcher.StartDIE(0x753c964c8ab538aeLL,
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(DwarfTag) 0x8c22970e));
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die_dispatcher.ProcessAttributeSigned(0x753c964c8ab538aeLL,
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(DwarfAttribute) 0x4e2b7cfb,
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(DwarfForm) 0x610b7ae1,
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0x3ea5c609d7d7560fLL);
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die_dispatcher.EndDIE(0x753c964c8ab538aeLL);
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}
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// Finish the root DIE (and thus the CU).
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die_dispatcher.EndDIE(0x15f0e06bdfe3c372LL);
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}
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}
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// The DIEDispatcher destructor is supposed to delete all handlers on
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// the stack, except for the root.
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TEST(Dwarf2DIEHandler, FreeHandlersOnStack) {
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MockRootDIEHandler mock_root_handler;
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MockDIEHandler *mock_child_handler = new(MockDIEHandler);
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MockDIEHandler *mock_grandchild_handler = new(MockDIEHandler);
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{
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InSequence s;
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// We'll like the compilation unit header.
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EXPECT_CALL(mock_root_handler,
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StartCompilationUnit(0x87b41ba8381cd71cLL, 0xff, 0x89,
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0x76d392ff393ddda2LL, 0xbf))
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.WillOnce(Return(true));
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// Root DIE.
|
|
{
|
|
EXPECT_CALL(mock_root_handler,
|
|
StartRootDIE(0xbf13b761691ddc91LL, (DwarfTag) 0x98980361))
|
|
.WillOnce(Return(true));
|
|
EXPECT_CALL(mock_root_handler, EndAttributes())
|
|
.WillOnce(Return(true));
|
|
|
|
// Child DIE.
|
|
EXPECT_CALL(mock_root_handler,
|
|
FindChildHandler(0x058f09240c5fc8c9LL,
|
|
(DwarfTag) 0x898bf0d0))
|
|
.WillOnce(Return(mock_child_handler));
|
|
{
|
|
EXPECT_CALL(*mock_child_handler, EndAttributes())
|
|
.WillOnce(Return(true));
|
|
|
|
// Grandchild DIE.
|
|
EXPECT_CALL(*mock_child_handler,
|
|
FindChildHandler(0x32dc00c9945dc0c8LL,
|
|
(DwarfTag) 0x2802d007))
|
|
.WillOnce(Return(mock_grandchild_handler));
|
|
{
|
|
EXPECT_CALL(*mock_grandchild_handler,
|
|
ProcessAttributeSigned((DwarfAttribute) 0x4e2b7cfb,
|
|
(DwarfForm) 0x610b7ae1,
|
|
0x3ea5c609d7d7560fLL))
|
|
.WillOnce(Return());
|
|
|
|
// At this point, we abandon the traversal, so none of the
|
|
// usual stuff should get called.
|
|
EXPECT_CALL(*mock_grandchild_handler, EndAttributes())
|
|
.Times(0);
|
|
EXPECT_CALL(*mock_grandchild_handler, Finish())
|
|
.Times(0);
|
|
}
|
|
|
|
EXPECT_CALL(*mock_child_handler, Finish())
|
|
.Times(0);
|
|
}
|
|
|
|
EXPECT_CALL(mock_root_handler, Finish())
|
|
.Times(0);
|
|
}
|
|
}
|
|
|
|
// The dispatcher.
|
|
DIEDispatcher die_dispatcher(&mock_root_handler);
|
|
|
|
// Report the CU header.
|
|
EXPECT_TRUE(die_dispatcher
|
|
.StartCompilationUnit(0x87b41ba8381cd71cLL, 0xff, 0x89,
|
|
0x76d392ff393ddda2LL, 0xbf));
|
|
// Report the root DIE.
|
|
{
|
|
EXPECT_TRUE(die_dispatcher.StartDIE(0xbf13b761691ddc91LL,
|
|
(DwarfTag) 0x98980361));
|
|
|
|
// Child DIE.
|
|
{
|
|
EXPECT_TRUE(die_dispatcher.StartDIE(0x058f09240c5fc8c9LL,
|
|
(DwarfTag) 0x898bf0d0));
|
|
|
|
// Grandchild DIE.
|
|
{
|
|
EXPECT_TRUE(die_dispatcher.StartDIE(0x32dc00c9945dc0c8LL,
|
|
(DwarfTag) 0x2802d007));
|
|
die_dispatcher.ProcessAttributeSigned(0x32dc00c9945dc0c8LL,
|
|
(DwarfAttribute) 0x4e2b7cfb,
|
|
(DwarfForm) 0x610b7ae1,
|
|
0x3ea5c609d7d7560fLL);
|
|
|
|
// Stop the traversal abruptly, so that there will still be
|
|
// handlers on the stack when the dispatcher is destructed.
|
|
|
|
// No EndDIE call...
|
|
}
|
|
// No EndDIE call...
|
|
}
|
|
// No EndDIE call...
|
|
}
|
|
}
|