The Tor Browser: toolkit/crashreporter/google-breakpad/src/common/dwarf/dwarf2diehandler

toolkit/crashreporter/google-breakpad/src/common/dwarf/dwarf2diehandler_unittest.cc@6474c204b198 (annotated)

toolkit/crashreporter/google-breakpad/src/common/dwarf/dwarf2diehandler_unittest.cc

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 // -*- mode: c++ -*-
 // 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>
 // dwarf2diehander_unittest.cc: Unit tests for google_breakpad::DIEDispatcher.
 #include <string>
 #include <utility>
 #include "breakpad_googletest_includes.h"
 #include "common/dwarf/dwarf2diehandler.h"
 #include "common/using_std_string.h"
 using std::make_pair;
 using ::testing::_;
 using ::testing::ContainerEq;
 using ::testing::ElementsAreArray;
 using ::testing::Eq;
 using ::testing::InSequence;
 using ::testing::Return;
 using ::testing::Sequence;
 using ::testing::StrEq;
 using dwarf2reader::DIEDispatcher;
 using dwarf2reader::DIEHandler;
 using dwarf2reader::DwarfAttribute;
 using dwarf2reader::DwarfForm;
 using dwarf2reader::DwarfTag;
 using dwarf2reader::RootDIEHandler;
 class MockDIEHandler: public DIEHandler {
  public:
   MOCK_METHOD3(ProcessAttributeUnsigned,
                void(DwarfAttribute, DwarfForm, uint64));
   MOCK_METHOD3(ProcessAttributeSigned,
                void(DwarfAttribute, DwarfForm, int64));
   MOCK_METHOD3(ProcessAttributeReference,
                void(DwarfAttribute, DwarfForm, uint64));
   MOCK_METHOD4(ProcessAttributeBuffer,
                void(DwarfAttribute, DwarfForm, const char *, uint64));
   MOCK_METHOD3(ProcessAttributeString,
                void(DwarfAttribute, DwarfForm, const string &));
   MOCK_METHOD3(ProcessAttributeSignature,
                void(DwarfAttribute, DwarfForm, uint64));
   MOCK_METHOD0(EndAttributes, bool());
   MOCK_METHOD2(FindChildHandler, DIEHandler *(uint64, DwarfTag));
   MOCK_METHOD0(Finish, void());
 };
 class MockRootDIEHandler: public RootDIEHandler {
  public:
   MOCK_METHOD3(ProcessAttributeUnsigned,
                void(DwarfAttribute, DwarfForm, uint64));
   MOCK_METHOD3(ProcessAttributeSigned,
                void(DwarfAttribute, DwarfForm, int64));
   MOCK_METHOD3(ProcessAttributeReference,
                void(DwarfAttribute, DwarfForm, uint64));
   MOCK_METHOD4(ProcessAttributeBuffer,
                void(DwarfAttribute, DwarfForm, const char *, uint64));
   MOCK_METHOD3(ProcessAttributeString,
                void(DwarfAttribute, DwarfForm, const string &));
   MOCK_METHOD3(ProcessAttributeSignature,
                void(DwarfAttribute, DwarfForm, uint64));
   MOCK_METHOD0(EndAttributes, bool());
   MOCK_METHOD2(FindChildHandler, DIEHandler *(uint64, DwarfTag));
   MOCK_METHOD0(Finish, void());
   MOCK_METHOD5(StartCompilationUnit, bool(uint64, uint8, uint8, uint64, uint8));
   MOCK_METHOD2(StartRootDIE, bool(uint64, DwarfTag));
 };
 // If the handler elects to skip the compilation unit, the dispatcher
 // should tell the reader so.
 TEST(Dwarf2DIEHandler, SkipCompilationUnit) {
   Sequence s;
   MockRootDIEHandler mock_root_handler;
   DIEDispatcher die_dispatcher(&mock_root_handler);
   EXPECT_CALL(mock_root_handler,
               StartCompilationUnit(0x8d42aed77cfccf3eLL,
 x89, 0xdc,
 x2ecb4dc778a80f21LL,
 x66))
       .InSequence(s)
       .WillOnce(Return(false));
   EXPECT_FALSE(die_dispatcher.StartCompilationUnit(0x8d42aed77cfccf3eLL,
 x89, 0xdc,
 x2ecb4dc778a80f21LL,
 x66));
 }
 // If the handler elects to skip the root DIE, the dispatcher should
 // tell the reader so.
 TEST(Dwarf2DIEHandler, SkipRootDIE) {
   Sequence s;
   MockRootDIEHandler mock_root_handler;
   DIEDispatcher die_dispatcher(&mock_root_handler);
   EXPECT_CALL(mock_root_handler,
               StartCompilationUnit(0xde8994029fc8b999LL, 0xf4, 0x02,
 xb00febffa76e2b2bLL, 0x5c))
       .InSequence(s)
       .WillOnce(Return(true));
   EXPECT_CALL(mock_root_handler,
               StartRootDIE(0x7d08242b4b510cf2LL, (DwarfTag) 0xb4f98da6))
       .InSequence(s)
       .WillOnce(Return(false));
   EXPECT_TRUE(die_dispatcher.StartCompilationUnit(0xde8994029fc8b999LL,
 xf4, 0x02,
 xb00febffa76e2b2bLL, 0x5c));
   EXPECT_FALSE(die_dispatcher.StartDIE(0x7d08242b4b510cf2LL,
                                        (DwarfTag) 0xb4f98da6));
   die_dispatcher.EndDIE(0x7d08242b4b510cf2LL);
 }
 // If the handler elects to skip the root DIE's children, the
 // dispatcher should tell the reader so --- and avoid deleting the
 // root handler.
 TEST(Dwarf2DIEHandler, SkipRootDIEChildren) {
   MockRootDIEHandler mock_root_handler;
   DIEDispatcher die_dispatcher(&mock_root_handler);
   {
     InSequence s;
     EXPECT_CALL(mock_root_handler,
                 StartCompilationUnit(0x15d6897480cc65a7LL, 0x26, 0xa0,
 x09f8bf0767f91675LL, 0xdb))
       .WillOnce(Return(true));
     EXPECT_CALL(mock_root_handler,
                 StartRootDIE(0x7d08242b4b510cf2LL, (DwarfTag) 0xb4f98da6))
       .WillOnce(Return(true));
     // Please don't tell me about my children.
     EXPECT_CALL(mock_root_handler, EndAttributes())
       .WillOnce(Return(false));
     EXPECT_CALL(mock_root_handler, Finish())
       .WillOnce(Return());
   }
   EXPECT_TRUE(die_dispatcher.StartCompilationUnit(0x15d6897480cc65a7LL,
 x26, 0xa0,
 x09f8bf0767f91675LL, 0xdb));
   EXPECT_TRUE(die_dispatcher.StartDIE(0x7d08242b4b510cf2LL,
                                       (DwarfTag) 0xb4f98da6));
   EXPECT_FALSE(die_dispatcher.StartDIE(0x435150ceedccda18LL,
                                        (DwarfTag) 0xc3a17bba));
   die_dispatcher.EndDIE(0x435150ceedccda18LL);
   die_dispatcher.EndDIE(0x7d08242b4b510cf2LL);
 }
 // The dispatcher should pass attribute values through to the die
 // handler accurately.
 TEST(Dwarf2DIEHandler, PassAttributeValues) {
   MockRootDIEHandler mock_root_handler;
   DIEDispatcher die_dispatcher(&mock_root_handler);
   const char buffer[10] = { 0x24, 0x24, 0x35, 0x9a, 0xca,
 xcf, 0xa8, 0x84, 0xa7, 0x18 };
   string str = "\xc8\x26\x2e\x0d\xa4\x9c\x37\xd6\xfb\x1d";
   // Set expectations.
   {
     InSequence s;
     // We'll like the compilation unit header.
     EXPECT_CALL(mock_root_handler,
                 StartCompilationUnit(0x8d42aed77cfccf3eLL, 0x89, 0xdc,
 x2ecb4dc778a80f21LL, 0x66))
       .WillOnce(Return(true));
     // We'll like the root DIE.
     EXPECT_CALL(mock_root_handler,
                 StartRootDIE(0xe2222da01e29f2a9LL, (DwarfTag) 0x9829445c))
       .WillOnce(Return(true));
     // Expect some attribute values.
     EXPECT_CALL(mock_root_handler,
                 ProcessAttributeUnsigned((DwarfAttribute) 0x1cc0bfed,
                                          (DwarfForm) 0x424f1468,
 xa592571997facda1ULL))
       .WillOnce(Return());
     EXPECT_CALL(mock_root_handler,
                 ProcessAttributeSigned((DwarfAttribute) 0x43694dc9,
                                        (DwarfForm) 0xf6f78901L,
 x92602a4e3bf1f446LL))
       .WillOnce(Return());
     EXPECT_CALL(mock_root_handler,
                 ProcessAttributeReference((DwarfAttribute) 0x4033e8cL,
                                           (DwarfForm) 0xf66fbe0bL,
 x50fddef44734fdecULL))
       .WillOnce(Return());
     EXPECT_CALL(mock_root_handler,
                 ProcessAttributeBuffer((DwarfAttribute) 0x25d7e0af,
                                        (DwarfForm) 0xe99a539a,
                                        buffer, sizeof(buffer)))
       .WillOnce(Return());
     EXPECT_CALL(mock_root_handler,
                 ProcessAttributeString((DwarfAttribute) 0x310ed065,
                                        (DwarfForm) 0x15762fec,
                                        StrEq(str)))
       .WillOnce(Return());
     EXPECT_CALL(mock_root_handler,
                 ProcessAttributeSignature((DwarfAttribute) 0x58790d72,
                                           (DwarfForm) 0x4159f138,
 x94682463613e6a5fULL))
       .WillOnce(Return());
     EXPECT_CALL(mock_root_handler, EndAttributes())
       .WillOnce(Return(true));
     EXPECT_CALL(mock_root_handler, FindChildHandler(_, _))
       .Times(0);
     EXPECT_CALL(mock_root_handler, Finish())
       .WillOnce(Return());
   }
   // Drive the dispatcher.
   // Report the CU header.
   EXPECT_TRUE(die_dispatcher.StartCompilationUnit(0x8d42aed77cfccf3eLL,
 x89, 0xdc,
 x2ecb4dc778a80f21LL,
 x66));
   // Report the root DIE.
   EXPECT_TRUE(die_dispatcher.StartDIE(0xe2222da01e29f2a9LL,
                                       (DwarfTag) 0x9829445c));
   // Report some attribute values.
   die_dispatcher.ProcessAttributeUnsigned(0xe2222da01e29f2a9LL,
                                           (DwarfAttribute) 0x1cc0bfed,
                                           (DwarfForm) 0x424f1468,
 xa592571997facda1ULL);
   die_dispatcher.ProcessAttributeSigned(0xe2222da01e29f2a9LL,
                                         (DwarfAttribute) 0x43694dc9,
                                         (DwarfForm) 0xf6f78901,
 x92602a4e3bf1f446LL);
   die_dispatcher.ProcessAttributeReference(0xe2222da01e29f2a9LL,
                                            (DwarfAttribute) 0x4033e8c,
                                            (DwarfForm) 0xf66fbe0b,
 x50fddef44734fdecULL);
   die_dispatcher.ProcessAttributeBuffer(0xe2222da01e29f2a9LL,
                                         (DwarfAttribute) 0x25d7e0af,
                                         (DwarfForm) 0xe99a539a,
                                         buffer, sizeof(buffer));
   die_dispatcher.ProcessAttributeString(0xe2222da01e29f2a9LL,
                                         (DwarfAttribute) 0x310ed065,
                                         (DwarfForm) 0x15762fec,
                                         str);
   die_dispatcher.ProcessAttributeSignature(0xe2222da01e29f2a9LL,
                                            (DwarfAttribute) 0x58790d72,
                                            (DwarfForm) 0x4159f138,
 x94682463613e6a5fULL);
   // Finish the root DIE (and thus the CU).
   die_dispatcher.EndDIE(0xe2222da01e29f2a9LL);
 }
 TEST(Dwarf2DIEHandler, FindAndSkipChildren) {
   MockRootDIEHandler mock_root_handler;
   MockDIEHandler *mock_child1_handler = new(MockDIEHandler);
   MockDIEHandler *mock_child3_handler = new(MockDIEHandler);
   DIEDispatcher die_dispatcher(&mock_root_handler);
   {
     InSequence s;
     // We'll like the compilation unit header.
     EXPECT_CALL(mock_root_handler,
                 StartCompilationUnit(0x9ec1e6d05e434a0eLL, 0xeb, 0x21,
 x47dd3c764275a216LL, 0xa5))
       .WillOnce(Return(true));
     // Root DIE.
     {
       EXPECT_CALL(mock_root_handler,
                   StartRootDIE(0x15f0e06bdfe3c372LL, (DwarfTag) 0xf5d60c59))
         .WillOnce(Return(true));
       EXPECT_CALL(mock_root_handler,
                   ProcessAttributeSigned((DwarfAttribute) 0xf779a642,
                                          (DwarfForm) 0x2cb63027,
 x18e744661769d08fLL))
         .WillOnce(Return());
       EXPECT_CALL(mock_root_handler, EndAttributes())
         .WillOnce(Return(true));
       // First child DIE.
       EXPECT_CALL(mock_root_handler,
                   FindChildHandler(0x149f644f8116fe8cLL,
                                    (DwarfTag) 0xac2cbd8c))
         .WillOnce(Return(mock_child1_handler));
       {
         EXPECT_CALL(*mock_child1_handler,
                     ProcessAttributeSigned((DwarfAttribute) 0xa6fd6f65,
                                            (DwarfForm) 0xe4f64c41,
 x1b04e5444a55fe67LL))
           .WillOnce(Return());
         EXPECT_CALL(*mock_child1_handler, EndAttributes())
           .WillOnce(Return(false));
         // Skip first grandchild DIE and first great-grandchild DIE.
         EXPECT_CALL(*mock_child1_handler, Finish())
           .WillOnce(Return());
       }
       // Second child DIE.  Root handler will decline to return a handler
       // for this child.
       EXPECT_CALL(mock_root_handler,
                   FindChildHandler(0x97412be24875de9dLL,
                                    (DwarfTag) 0x505a068b))
         .WillOnce(Return((DIEHandler *) NULL));
       // Third child DIE.
       EXPECT_CALL(mock_root_handler,
                   FindChildHandler(0x753c964c8ab538aeLL,
                                    (DwarfTag) 0x8c22970e))
         .WillOnce(Return(mock_child3_handler));
       {
         EXPECT_CALL(*mock_child3_handler,
                     ProcessAttributeSigned((DwarfAttribute) 0x4e2b7cfb,
                                            (DwarfForm) 0x610b7ae1,
 x3ea5c609d7d7560fLL))
           .WillOnce(Return());
         EXPECT_CALL(*mock_child3_handler, EndAttributes())
           .WillOnce(Return(true));
         EXPECT_CALL(*mock_child3_handler, Finish())
           .WillOnce(Return());
       }
       EXPECT_CALL(mock_root_handler, Finish())
         .WillOnce(Return());
     }
   }
   // Drive the dispatcher.
   // Report the CU header.
   EXPECT_TRUE(die_dispatcher
               .StartCompilationUnit(0x9ec1e6d05e434a0eLL, 0xeb, 0x21,
 x47dd3c764275a216LL, 0xa5));
   // Report the root DIE.
   {
     EXPECT_TRUE(die_dispatcher.StartDIE(0x15f0e06bdfe3c372LL,
                                         (DwarfTag) 0xf5d60c59));
     die_dispatcher.ProcessAttributeSigned(0x15f0e06bdfe3c372LL,
                                           (DwarfAttribute) 0xf779a642,
                                           (DwarfForm) 0x2cb63027,
 x18e744661769d08fLL);
     // First child DIE.
     {
       EXPECT_TRUE(die_dispatcher.StartDIE(0x149f644f8116fe8cLL,
                                           (DwarfTag) 0xac2cbd8c));
       die_dispatcher.ProcessAttributeSigned(0x149f644f8116fe8cLL,
                                             (DwarfAttribute) 0xa6fd6f65,
                                             (DwarfForm) 0xe4f64c41,
 x1b04e5444a55fe67LL);
       // First grandchild DIE.  Will be skipped.
       {
         EXPECT_FALSE(die_dispatcher.StartDIE(0xd68de1ee0bd29419LL,
                                             (DwarfTag) 0x22f05a15));
         // First great-grandchild DIE.  Will be skipped without being
         // mentioned to any handler.
         {
           EXPECT_FALSE(die_dispatcher
                        .StartDIE(0xb3076285d25cac25LL,
                                  (DwarfTag) 0xcff4061b));
           die_dispatcher.EndDIE(0xb3076285d25cac25LL);
         }
         die_dispatcher.EndDIE(0xd68de1ee0bd29419LL);
       }
       die_dispatcher.EndDIE(0x149f644f8116fe8cLL);
     }
     // Second child DIE.  Root handler will decline to find a handler for it.
     {
       EXPECT_FALSE(die_dispatcher.StartDIE(0x97412be24875de9dLL,
                                            (DwarfTag) 0x505a068b));
       die_dispatcher.EndDIE(0x97412be24875de9dLL);
     }
     // Third child DIE.
     {
       EXPECT_TRUE(die_dispatcher.StartDIE(0x753c964c8ab538aeLL,
                                           (DwarfTag) 0x8c22970e));
       die_dispatcher.ProcessAttributeSigned(0x753c964c8ab538aeLL,
                                             (DwarfAttribute) 0x4e2b7cfb,
                                             (DwarfForm) 0x610b7ae1,
 x3ea5c609d7d7560fLL);
       die_dispatcher.EndDIE(0x753c964c8ab538aeLL);
     }
     // Finish the root DIE (and thus the CU).
     die_dispatcher.EndDIE(0x15f0e06bdfe3c372LL);
   }
 }
 // The DIEDispatcher destructor is supposed to delete all handlers on
 // the stack, except for the root.
 TEST(Dwarf2DIEHandler, FreeHandlersOnStack) {
   MockRootDIEHandler mock_root_handler;
   MockDIEHandler *mock_child_handler = new(MockDIEHandler);
   MockDIEHandler *mock_grandchild_handler = new(MockDIEHandler);
   {
     InSequence s;
     // We'll like the compilation unit header.
     EXPECT_CALL(mock_root_handler,
                 StartCompilationUnit(0x87b41ba8381cd71cLL, 0xff, 0x89,
 x76d392ff393ddda2LL, 0xbf))
       .WillOnce(Return(true));
     // 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,
 x3ea5c609d7d7560fLL))
             .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,
 x76d392ff393ddda2LL, 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,
 x3ea5c609d7d7560fLL);
         // 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...
   }
 }

The Tor Browser / annotate

toolkit/crashreporter/google-breakpad/src/common/dwarf/dwarf2diehandler_unittest.cc@6474c204b198 (annotated)

toolkit/crashreporter/google-breakpad/src/common/dwarf/dwarf2diehandler_unittest.cc