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Diffstat (limited to 'toolkit/crashreporter/google-breakpad/src/processor/disassembler_x86_unittest.cc')
| -rw-r--r-- | toolkit/crashreporter/google-breakpad/src/processor/disassembler_x86_unittest.cc | 233 |
1 files changed, 0 insertions, 233 deletions
diff --git a/toolkit/crashreporter/google-breakpad/src/processor/disassembler_x86_unittest.cc b/toolkit/crashreporter/google-breakpad/src/processor/disassembler_x86_unittest.cc deleted file mode 100644 index 352905f20..000000000 --- a/toolkit/crashreporter/google-breakpad/src/processor/disassembler_x86_unittest.cc +++ /dev/null @@ -1,233 +0,0 @@ -// 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 - -#include <unistd.h> - -#include "breakpad_googletest_includes.h" -#include "processor/disassembler_x86.h" -#include "third_party/libdisasm/libdis.h" - -namespace { - -using google_breakpad::DisassemblerX86; - -unsigned char just_return[] = "\xc3"; // retn - -unsigned char invalid_instruction[] = "\x00"; // invalid - -unsigned char read_eax_jmp_eax[] = - "\x8b\x18" // mov ebx, [eax]; - "\x33\xc9" // xor ebx, ebx; - "\xff\x20" // jmp eax; - "\xc3"; // retn; - -unsigned char write_eax_arg_to_call[] = - "\x89\xa8\x00\x02\x00\x00" // mov [eax+200], ebp; - "\xc1\xeb\x02" // shr ebx, 2; - "\x50" // push eax; - "\xe8\xd1\x24\x77\x88" // call something; - "\xc3"; // retn; - -unsigned char read_edi_stosb[] = - "\x8b\x07" // mov eax, [edi]; - "\x8b\xc8" // mov ecx, eax; - "\xf3\xaa" // rep stosb; - "\xc3"; // retn; - -unsigned char read_clobber_write[] = - "\x03\x18" // add ebx, [eax]; - "\x8b\xc1" // mov eax, ecx; - "\x89\x10" // mov [eax], edx; - "\xc3"; // retn; - -unsigned char read_xchg_write[] = - "\x03\x18" // add ebx, [eax]; - "\x91" // xchg eax, ecx; - "\x89\x18" // mov [eax], ebx; - "\x89\x11" // mov [ecx], edx; - "\xc3"; // retn; - -unsigned char read_cmp[] = - "\x03\x18" // add ebx, [eax]; - "\x83\xf8\x00" // cmp eax, 0; - "\x74\x04" // je +4; - "\xc3"; // retn; - -TEST(DisassemblerX86Test, SimpleReturnInstruction) { - DisassemblerX86 dis(just_return, sizeof(just_return)-1, 0); - EXPECT_EQ(1U, dis.NextInstruction()); - EXPECT_TRUE(dis.currentInstructionValid()); - EXPECT_EQ(0U, dis.flags()); - EXPECT_TRUE(dis.endOfBlock()); - EXPECT_EQ(libdis::insn_controlflow, dis.currentInstructionGroup()); - const libdis::x86_insn_t* instruction = dis.currentInstruction(); - EXPECT_EQ(libdis::insn_controlflow, instruction->group); - EXPECT_EQ(libdis::insn_return, instruction->type); - EXPECT_EQ(0U, dis.NextInstruction()); - EXPECT_FALSE(dis.currentInstructionValid()); - EXPECT_EQ(NULL, dis.currentInstruction()); -} - -TEST(DisassemblerX86Test, SimpleInvalidInstruction) { - DisassemblerX86 dis(invalid_instruction, sizeof(invalid_instruction)-1, 0); - EXPECT_EQ(0U, dis.NextInstruction()); - EXPECT_FALSE(dis.currentInstructionValid()); -} - -TEST(DisassemblerX86Test, BadReadLeadsToBranch) { - DisassemblerX86 dis(read_eax_jmp_eax, sizeof(read_eax_jmp_eax)-1, 0); - EXPECT_EQ(2U, dis.NextInstruction()); - EXPECT_TRUE(dis.currentInstructionValid()); - EXPECT_EQ(0U, dis.flags()); - EXPECT_FALSE(dis.endOfBlock()); - EXPECT_EQ(libdis::insn_move, dis.currentInstructionGroup()); - EXPECT_TRUE(dis.setBadRead()); - EXPECT_EQ(2U, dis.NextInstruction()); - EXPECT_TRUE(dis.currentInstructionValid()); - EXPECT_EQ(0U, dis.flags()); - EXPECT_FALSE(dis.endOfBlock()); - EXPECT_EQ(libdis::insn_logic, dis.currentInstructionGroup()); - EXPECT_EQ(2U, dis.NextInstruction()); - EXPECT_TRUE(dis.currentInstructionValid()); - EXPECT_EQ(google_breakpad::DISX86_BAD_BRANCH_TARGET, dis.flags()); - EXPECT_FALSE(dis.endOfBlock()); - EXPECT_EQ(libdis::insn_controlflow, dis.currentInstructionGroup()); -} - -TEST(DisassemblerX86Test, BadWriteLeadsToPushedArg) { - DisassemblerX86 dis(write_eax_arg_to_call, - sizeof(write_eax_arg_to_call)-1, 0); - EXPECT_EQ(6U, dis.NextInstruction()); - EXPECT_TRUE(dis.currentInstructionValid()); - EXPECT_EQ(0U, dis.flags()); - EXPECT_FALSE(dis.endOfBlock()); - EXPECT_EQ(libdis::insn_move, dis.currentInstructionGroup()); - EXPECT_TRUE(dis.setBadWrite()); - EXPECT_EQ(3U, dis.NextInstruction()); - EXPECT_TRUE(dis.currentInstructionValid()); - EXPECT_EQ(0U, dis.flags()); - EXPECT_FALSE(dis.endOfBlock()); - EXPECT_EQ(libdis::insn_arithmetic, dis.currentInstructionGroup()); - EXPECT_EQ(1U, dis.NextInstruction()); - EXPECT_TRUE(dis.currentInstructionValid()); - EXPECT_EQ(0U, dis.flags()); - EXPECT_FALSE(dis.endOfBlock()); - EXPECT_EQ(5U, dis.NextInstruction()); - EXPECT_TRUE(dis.currentInstructionValid()); - EXPECT_EQ(google_breakpad::DISX86_BAD_ARGUMENT_PASSED, dis.flags()); - EXPECT_EQ(libdis::insn_controlflow, dis.currentInstructionGroup()); - EXPECT_FALSE(dis.endOfBlock()); -} - - -TEST(DisassemblerX86Test, BadReadLeadsToBlockWrite) { - DisassemblerX86 dis(read_edi_stosb, sizeof(read_edi_stosb)-1, 0); - EXPECT_EQ(2U, dis.NextInstruction()); - EXPECT_TRUE(dis.currentInstructionValid()); - EXPECT_EQ(0U, dis.flags()); - EXPECT_FALSE(dis.endOfBlock()); - EXPECT_EQ(libdis::insn_move, dis.currentInstructionGroup()); - EXPECT_TRUE(dis.setBadRead()); - EXPECT_EQ(2U, dis.NextInstruction()); - EXPECT_TRUE(dis.currentInstructionValid()); - EXPECT_EQ(0U, dis.flags()); - EXPECT_FALSE(dis.endOfBlock()); - EXPECT_EQ(libdis::insn_move, dis.currentInstructionGroup()); - EXPECT_EQ(2U, dis.NextInstruction()); - EXPECT_TRUE(dis.currentInstructionValid()); - EXPECT_EQ(google_breakpad::DISX86_BAD_BLOCK_WRITE, dis.flags()); - EXPECT_FALSE(dis.endOfBlock()); - EXPECT_EQ(libdis::insn_string, dis.currentInstructionGroup()); -} - -TEST(DisassemblerX86Test, BadReadClobberThenWrite) { - DisassemblerX86 dis(read_clobber_write, sizeof(read_clobber_write)-1, 0); - EXPECT_EQ(2U, dis.NextInstruction()); - EXPECT_TRUE(dis.currentInstructionValid()); - EXPECT_EQ(0U, dis.flags()); - EXPECT_FALSE(dis.endOfBlock()); - EXPECT_EQ(libdis::insn_arithmetic, dis.currentInstructionGroup()); - EXPECT_TRUE(dis.setBadRead()); - EXPECT_EQ(2U, dis.NextInstruction()); - EXPECT_TRUE(dis.currentInstructionValid()); - EXPECT_EQ(0U, dis.flags()); - EXPECT_FALSE(dis.endOfBlock()); - EXPECT_EQ(libdis::insn_move, dis.currentInstructionGroup()); - EXPECT_EQ(2U, dis.NextInstruction()); - EXPECT_TRUE(dis.currentInstructionValid()); - EXPECT_EQ(0U, dis.flags()); - EXPECT_FALSE(dis.endOfBlock()); - EXPECT_EQ(libdis::insn_move, dis.currentInstructionGroup()); -} - -TEST(DisassemblerX86Test, BadReadXCHGThenWrite) { - DisassemblerX86 dis(read_xchg_write, sizeof(read_xchg_write)-1, 0); - EXPECT_EQ(2U, dis.NextInstruction()); - EXPECT_TRUE(dis.currentInstructionValid()); - EXPECT_EQ(0U, dis.flags()); - EXPECT_FALSE(dis.endOfBlock()); - EXPECT_EQ(libdis::insn_arithmetic, dis.currentInstructionGroup()); - EXPECT_TRUE(dis.setBadRead()); - EXPECT_EQ(1U, dis.NextInstruction()); - EXPECT_TRUE(dis.currentInstructionValid()); - EXPECT_EQ(0U, dis.flags()); - EXPECT_FALSE(dis.endOfBlock()); - EXPECT_EQ(libdis::insn_move, dis.currentInstructionGroup()); - EXPECT_EQ(2U, dis.NextInstruction()); - EXPECT_TRUE(dis.currentInstructionValid()); - EXPECT_EQ(0U, dis.flags()); - EXPECT_FALSE(dis.endOfBlock()); - EXPECT_EQ(libdis::insn_move, dis.currentInstructionGroup()); - EXPECT_EQ(2U, dis.NextInstruction()); - EXPECT_TRUE(dis.currentInstructionValid()); - EXPECT_EQ(google_breakpad::DISX86_BAD_WRITE, dis.flags()); - EXPECT_FALSE(dis.endOfBlock()); - EXPECT_EQ(libdis::insn_move, dis.currentInstructionGroup()); -} - -TEST(DisassemblerX86Test, BadReadThenCMP) { - DisassemblerX86 dis(read_cmp, sizeof(read_cmp)-1, 0); - EXPECT_EQ(2U, dis.NextInstruction()); - EXPECT_TRUE(dis.currentInstructionValid()); - EXPECT_EQ(0U, dis.flags()); - EXPECT_FALSE(dis.endOfBlock()); - EXPECT_EQ(libdis::insn_arithmetic, dis.currentInstructionGroup()); - EXPECT_TRUE(dis.setBadRead()); - EXPECT_EQ(3U, dis.NextInstruction()); - EXPECT_TRUE(dis.currentInstructionValid()); - EXPECT_EQ(google_breakpad::DISX86_BAD_COMPARISON, dis.flags()); - EXPECT_FALSE(dis.endOfBlock()); - EXPECT_EQ(libdis::insn_comparison, dis.currentInstructionGroup()); - EXPECT_EQ(2U, dis.NextInstruction()); - EXPECT_TRUE(dis.currentInstructionValid()); - EXPECT_EQ(google_breakpad::DISX86_BAD_COMPARISON, dis.flags()); - EXPECT_FALSE(dis.endOfBlock()); - EXPECT_EQ(libdis::insn_controlflow, dis.currentInstructionGroup()); -} -} |