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Unified Diff: experimental/visual_studio_plugin/third_party/breakpad/common/dwarf/dwarf2reader_cfi_unittest.cc

Issue 10928195: First round of dead file removal (Closed) Base URL: https://github.com/samclegg/nativeclient-sdk.git@master
Patch Set: Created 8 years, 3 months ago
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Index: experimental/visual_studio_plugin/third_party/breakpad/common/dwarf/dwarf2reader_cfi_unittest.cc
diff --git a/experimental/visual_studio_plugin/third_party/breakpad/common/dwarf/dwarf2reader_cfi_unittest.cc b/experimental/visual_studio_plugin/third_party/breakpad/common/dwarf/dwarf2reader_cfi_unittest.cc
deleted file mode 100644
index 7b346fe237da1aea1c4d227aa9b3953c1fc62132..0000000000000000000000000000000000000000
--- a/experimental/visual_studio_plugin/third_party/breakpad/common/dwarf/dwarf2reader_cfi_unittest.cc
+++ /dev/null
@@ -1,2449 +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.
-
-// Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com>
-
-// dwarf2reader_cfi_unittest.cc: Unit tests for dwarf2reader::CallFrameInfo
-
-#include <cstdlib>
-#include <vector>
-
-// The '.eh_frame' format, used by the Linux C++ ABI for exception
-// handling, is poorly specified. To help test our support for .eh_frame,
-// if you #define WRITE_ELF while compiling this file, and add the
-// 'include' directory from the binutils, gcc, or gdb source tree to the
-// #include path, then each test that calls the
-// PERHAPS_WRITE_DEBUG_FRAME_FILE or PERHAPS_WRITE_EH_FRAME_FILE will write
-// an ELF file containing a .debug_frame or .eh_frame section; you can then
-// use tools like readelf to examine the test data, and check the tools'
-// interpretation against the test's intentions. Each ELF file is named
-// "cfitest-TEST", where TEST identifies the particular test.
-#ifdef WRITE_ELF
-#include <cstdio>
-#include <cerrno>
-#include <cstring>
-extern "C" {
-// To compile with WRITE_ELF, you should add the 'include' directory
-// of the binutils, gcc, or gdb source tree to your #include path;
-// that directory contains this header.
-#include "elf/common.h"
-}
-#endif
-
-#include "breakpad_googletest_includes.h"
-#include "common/dwarf/bytereader-inl.h"
-#include "common/dwarf/cfi_assembler.h"
-#include "common/dwarf/dwarf2reader.h"
-#include "google_breakpad/common/breakpad_types.h"
-
-using google_breakpad::CFISection;
-using google_breakpad::TestAssembler::Label;
-using google_breakpad::TestAssembler::kBigEndian;
-using google_breakpad::TestAssembler::kLittleEndian;
-using google_breakpad::TestAssembler::Section;
-
-using dwarf2reader::DwarfPointerEncoding;
-using dwarf2reader::ENDIANNESS_BIG;
-using dwarf2reader::ENDIANNESS_LITTLE;
-using dwarf2reader::ByteReader;
-using dwarf2reader::CallFrameInfo;
-
-using std::vector;
-using testing::InSequence;
-using testing::Return;
-using testing::Sequence;
-using testing::Test;
-using testing::_;
-
-#ifdef WRITE_ELF
-void WriteELFFrameSection(const char *filename, const char *section_name,
- const CFISection &section);
-#define PERHAPS_WRITE_DEBUG_FRAME_FILE(name, section) \
- WriteELFFrameSection("cfitest-" name, ".debug_frame", section);
-#define PERHAPS_WRITE_EH_FRAME_FILE(name, section) \
- WriteELFFrameSection("cfitest-" name, ".eh_frame", section);
-#else
-#define PERHAPS_WRITE_DEBUG_FRAME_FILE(name, section)
-#define PERHAPS_WRITE_EH_FRAME_FILE(name, section)
-#endif
-
-class MockCallFrameInfoHandler: public CallFrameInfo::Handler {
- public:
- MOCK_METHOD6(Entry, bool(size_t offset, uint64 address, uint64 length,
- uint8 version, const string &augmentation,
- unsigned return_address));
- MOCK_METHOD2(UndefinedRule, bool(uint64 address, int reg));
- MOCK_METHOD2(SameValueRule, bool(uint64 address, int reg));
- MOCK_METHOD4(OffsetRule, bool(uint64 address, int reg, int base_register,
- long offset));
- MOCK_METHOD4(ValOffsetRule, bool(uint64 address, int reg, int base_register,
- long offset));
- MOCK_METHOD3(RegisterRule, bool(uint64 address, int reg, int base_register));
- MOCK_METHOD3(ExpressionRule, bool(uint64 address, int reg,
- const string &expression));
- MOCK_METHOD3(ValExpressionRule, bool(uint64 address, int reg,
- const string &expression));
- MOCK_METHOD0(End, bool());
- MOCK_METHOD2(PersonalityRoutine, bool(uint64 address, bool indirect));
- MOCK_METHOD2(LanguageSpecificDataArea, bool(uint64 address, bool indirect));
- MOCK_METHOD0(SignalHandler, bool());
-};
-
-class MockCallFrameErrorReporter: public CallFrameInfo::Reporter {
- public:
- MockCallFrameErrorReporter() : Reporter("mock filename", "mock section") { }
- MOCK_METHOD2(Incomplete, void(uint64, CallFrameInfo::EntryKind));
- MOCK_METHOD1(EarlyEHTerminator, void(uint64));
- MOCK_METHOD2(CIEPointerOutOfRange, void(uint64, uint64));
- MOCK_METHOD2(BadCIEId, void(uint64, uint64));
- MOCK_METHOD2(UnrecognizedVersion, void(uint64, int version));
- MOCK_METHOD2(UnrecognizedAugmentation, void(uint64, const string &));
- MOCK_METHOD2(InvalidPointerEncoding, void(uint64, uint8));
- MOCK_METHOD2(UnusablePointerEncoding, void(uint64, uint8));
- MOCK_METHOD2(RestoreInCIE, void(uint64, uint64));
- MOCK_METHOD3(BadInstruction, void(uint64, CallFrameInfo::EntryKind, uint64));
- MOCK_METHOD3(NoCFARule, void(uint64, CallFrameInfo::EntryKind, uint64));
- MOCK_METHOD3(EmptyStateStack, void(uint64, CallFrameInfo::EntryKind, uint64));
-};
-
-struct CFIFixture {
-
- enum { kCFARegister = CallFrameInfo::Handler::kCFARegister };
-
- CFIFixture() {
- // Default expectations for the data handler.
- //
- // - Leave Entry and End without expectations, as it's probably a
- // good idea to set those explicitly in each test.
- //
- // - Expect the *Rule functions to not be called,
- // so that each test can simply list the calls they expect.
- //
- // I gather I could use StrictMock for this, but the manual seems
- // to suggest using that only as a last resort, and this isn't so
- // bad.
- EXPECT_CALL(handler, UndefinedRule(_, _)).Times(0);
- EXPECT_CALL(handler, SameValueRule(_, _)).Times(0);
- EXPECT_CALL(handler, OffsetRule(_, _, _, _)).Times(0);
- EXPECT_CALL(handler, ValOffsetRule(_, _, _, _)).Times(0);
- EXPECT_CALL(handler, RegisterRule(_, _, _)).Times(0);
- EXPECT_CALL(handler, ExpressionRule(_, _, _)).Times(0);
- EXPECT_CALL(handler, ValExpressionRule(_, _, _)).Times(0);
- EXPECT_CALL(handler, PersonalityRoutine(_, _)).Times(0);
- EXPECT_CALL(handler, LanguageSpecificDataArea(_, _)).Times(0);
- EXPECT_CALL(handler, SignalHandler()).Times(0);
-
- // Default expectations for the error/warning reporer.
- EXPECT_CALL(reporter, Incomplete(_, _)).Times(0);
- EXPECT_CALL(reporter, EarlyEHTerminator(_)).Times(0);
- EXPECT_CALL(reporter, CIEPointerOutOfRange(_, _)).Times(0);
- EXPECT_CALL(reporter, BadCIEId(_, _)).Times(0);
- EXPECT_CALL(reporter, UnrecognizedVersion(_, _)).Times(0);
- EXPECT_CALL(reporter, UnrecognizedAugmentation(_, _)).Times(0);
- EXPECT_CALL(reporter, InvalidPointerEncoding(_, _)).Times(0);
- EXPECT_CALL(reporter, UnusablePointerEncoding(_, _)).Times(0);
- EXPECT_CALL(reporter, RestoreInCIE(_, _)).Times(0);
- EXPECT_CALL(reporter, BadInstruction(_, _, _)).Times(0);
- EXPECT_CALL(reporter, NoCFARule(_, _, _)).Times(0);
- EXPECT_CALL(reporter, EmptyStateStack(_, _, _)).Times(0);
- }
-
- MockCallFrameInfoHandler handler;
- MockCallFrameErrorReporter reporter;
-};
-
-class CFI: public CFIFixture, public Test { };
-
-TEST_F(CFI, EmptyRegion) {
- EXPECT_CALL(handler, Entry(_, _, _, _, _, _)).Times(0);
- EXPECT_CALL(handler, End()).Times(0);
- static const char data[1] = { 42 };
-
- ByteReader byte_reader(ENDIANNESS_BIG);
- CallFrameInfo parser(data, 0, &byte_reader, &handler, &reporter);
- EXPECT_TRUE(parser.Start());
-}
-
-TEST_F(CFI, IncompleteLength32) {
- CFISection section(kBigEndian, 8);
- section
- // Not even long enough for an initial length.
- .D16(0xa0f)
- // Padding to keep valgrind happy. We subtract these off when we
- // construct the parser.
- .D16(0);
-
- EXPECT_CALL(handler, Entry(_, _, _, _, _, _)).Times(0);
- EXPECT_CALL(handler, End()).Times(0);
-
- EXPECT_CALL(reporter, Incomplete(_, CallFrameInfo::kUnknown))
- .WillOnce(Return());
-
- string contents;
- ASSERT_TRUE(section.GetContents(&contents));
-
- ByteReader byte_reader(ENDIANNESS_BIG);
- byte_reader.SetAddressSize(8);
- CallFrameInfo parser(contents.data(), contents.size() - 2,
- &byte_reader, &handler, &reporter);
- EXPECT_FALSE(parser.Start());
-}
-
-TEST_F(CFI, IncompleteLength64) {
- CFISection section(kLittleEndian, 4);
- section
- // An incomplete 64-bit DWARF initial length.
- .D32(0xffffffff).D32(0x71fbaec2)
- // Padding to keep valgrind happy. We subtract these off when we
- // construct the parser.
- .D32(0);
-
- EXPECT_CALL(handler, Entry(_, _, _, _, _, _)).Times(0);
- EXPECT_CALL(handler, End()).Times(0);
-
- EXPECT_CALL(reporter, Incomplete(_, CallFrameInfo::kUnknown))
- .WillOnce(Return());
-
- string contents;
- ASSERT_TRUE(section.GetContents(&contents));
-
- ByteReader byte_reader(ENDIANNESS_LITTLE);
- byte_reader.SetAddressSize(4);
- CallFrameInfo parser(contents.data(), contents.size() - 4,
- &byte_reader, &handler, &reporter);
- EXPECT_FALSE(parser.Start());
-}
-
-TEST_F(CFI, IncompleteId32) {
- CFISection section(kBigEndian, 8);
- section
- .D32(3) // Initial length, not long enough for id
- .D8(0xd7).D8(0xe5).D8(0xf1) // incomplete id
- .CIEHeader(8727, 3983, 8889, 3, "")
- .FinishEntry();
-
- EXPECT_CALL(handler, Entry(_, _, _, _, _, _)).Times(0);
- EXPECT_CALL(handler, End()).Times(0);
-
- EXPECT_CALL(reporter, Incomplete(_, CallFrameInfo::kUnknown))
- .WillOnce(Return());
-
- string contents;
- ASSERT_TRUE(section.GetContents(&contents));
-
- ByteReader byte_reader(ENDIANNESS_BIG);
- byte_reader.SetAddressSize(8);
- CallFrameInfo parser(contents.data(), contents.size(),
- &byte_reader, &handler, &reporter);
- EXPECT_FALSE(parser.Start());
-}
-
-TEST_F(CFI, BadId32) {
- CFISection section(kBigEndian, 8);
- section
- .D32(0x100) // Initial length
- .D32(0xe802fade) // bogus ID
- .Append(0x100 - 4, 0x42); // make the length true
- section
- .CIEHeader(1672, 9872, 8529, 3, "")
- .FinishEntry();
-
- EXPECT_CALL(handler, Entry(_, _, _, _, _, _)).Times(0);
- EXPECT_CALL(handler, End()).Times(0);
-
- EXPECT_CALL(reporter, CIEPointerOutOfRange(_, 0xe802fade))
- .WillOnce(Return());
-
- string contents;
- ASSERT_TRUE(section.GetContents(&contents));
-
- ByteReader byte_reader(ENDIANNESS_BIG);
- byte_reader.SetAddressSize(8);
- CallFrameInfo parser(contents.data(), contents.size(),
- &byte_reader, &handler, &reporter);
- EXPECT_FALSE(parser.Start());
-}
-
-// A lone CIE shouldn't cause any handler calls.
-TEST_F(CFI, SingleCIE) {
- CFISection section(kLittleEndian, 4);
- section.CIEHeader(0xffe799a8, 0x3398dcdd, 0x6e9683de, 3, "");
- section.Append(10, dwarf2reader::DW_CFA_nop);
- section.FinishEntry();
-
- PERHAPS_WRITE_DEBUG_FRAME_FILE("SingleCIE", section);
-
- EXPECT_CALL(handler, Entry(_, _, _, _, _, _)).Times(0);
- EXPECT_CALL(handler, End()).Times(0);
-
- string contents;
- EXPECT_TRUE(section.GetContents(&contents));
- ByteReader byte_reader(ENDIANNESS_LITTLE);
- byte_reader.SetAddressSize(4);
- CallFrameInfo parser(contents.data(), contents.size(),
- &byte_reader, &handler, &reporter);
- EXPECT_TRUE(parser.Start());
-}
-
-// One FDE, one CIE.
-TEST_F(CFI, OneFDE) {
- CFISection section(kBigEndian, 4);
- Label cie;
- section
- .Mark(&cie)
- .CIEHeader(0x4be22f75, 0x2492236e, 0x6b6efb87, 3, "")
- .FinishEntry()
- .FDEHeader(cie, 0x7714740d, 0x3d5a10cd)
- .FinishEntry();
-
- PERHAPS_WRITE_DEBUG_FRAME_FILE("OneFDE", section);
-
- {
- InSequence s;
- EXPECT_CALL(handler,
- Entry(_, 0x7714740d, 0x3d5a10cd, 3, "", 0x6b6efb87))
- .WillOnce(Return(true));
- EXPECT_CALL(handler, End()).WillOnce(Return(true));
- }
-
- string contents;
- EXPECT_TRUE(section.GetContents(&contents));
- ByteReader byte_reader(ENDIANNESS_BIG);
- byte_reader.SetAddressSize(4);
- CallFrameInfo parser(contents.data(), contents.size(),
- &byte_reader, &handler, &reporter);
- EXPECT_TRUE(parser.Start());
-}
-
-// Two FDEs share a CIE.
-TEST_F(CFI, TwoFDEsOneCIE) {
- CFISection section(kBigEndian, 4);
- Label cie;
- section
- // First FDE. readelf complains about this one because it makes
- // a forward reference to its CIE.
- .FDEHeader(cie, 0xa42744df, 0xa3b42121)
- .FinishEntry()
- // CIE.
- .Mark(&cie)
- .CIEHeader(0x04f7dc7b, 0x3d00c05f, 0xbd43cb59, 3, "")
- .FinishEntry()
- // Second FDE.
- .FDEHeader(cie, 0x6057d391, 0x700f608d)
- .FinishEntry();
-
- PERHAPS_WRITE_DEBUG_FRAME_FILE("TwoFDEsOneCIE", section);
-
- {
- InSequence s;
- EXPECT_CALL(handler,
- Entry(_, 0xa42744df, 0xa3b42121, 3, "", 0xbd43cb59))
- .WillOnce(Return(true));
- EXPECT_CALL(handler, End()).WillOnce(Return(true));
- }
- {
- InSequence s;
- EXPECT_CALL(handler,
- Entry(_, 0x6057d391, 0x700f608d, 3, "", 0xbd43cb59))
- .WillOnce(Return(true));
- EXPECT_CALL(handler, End()).WillOnce(Return(true));
- }
-
- string contents;
- EXPECT_TRUE(section.GetContents(&contents));
- ByteReader byte_reader(ENDIANNESS_BIG);
- byte_reader.SetAddressSize(4);
- CallFrameInfo parser(contents.data(), contents.size(),
- &byte_reader, &handler, &reporter);
- EXPECT_TRUE(parser.Start());
-}
-
-// Two FDEs, two CIEs.
-TEST_F(CFI, TwoFDEsTwoCIEs) {
- CFISection section(kLittleEndian, 8);
- Label cie1, cie2;
- section
- // First CIE.
- .Mark(&cie1)
- .CIEHeader(0x694d5d45, 0x4233221b, 0xbf45e65a, 3, "")
- .FinishEntry()
- // First FDE which cites second CIE. readelf complains about
- // this one because it makes a forward reference to its CIE.
- .FDEHeader(cie2, 0x778b27dfe5871f05ULL, 0x324ace3448070926ULL)
- .FinishEntry()
- // Second FDE, which cites first CIE.
- .FDEHeader(cie1, 0xf6054ca18b10bf5fULL, 0x45fdb970d8bca342ULL)
- .FinishEntry()
- // Second CIE.
- .Mark(&cie2)
- .CIEHeader(0xfba3fad7, 0x6287e1fd, 0x61d2c581, 2, "")
- .FinishEntry();
-
- PERHAPS_WRITE_DEBUG_FRAME_FILE("TwoFDEsTwoCIEs", section);
-
- {
- InSequence s;
- EXPECT_CALL(handler,
- Entry(_, 0x778b27dfe5871f05ULL, 0x324ace3448070926ULL, 2,
- "", 0x61d2c581))
- .WillOnce(Return(true));
- EXPECT_CALL(handler, End()).WillOnce(Return(true));
- }
- {
- InSequence s;
- EXPECT_CALL(handler,
- Entry(_, 0xf6054ca18b10bf5fULL, 0x45fdb970d8bca342ULL, 3,
- "", 0xbf45e65a))
- .WillOnce(Return(true));
- EXPECT_CALL(handler, End()).WillOnce(Return(true));
- }
-
- string contents;
- EXPECT_TRUE(section.GetContents(&contents));
- ByteReader byte_reader(ENDIANNESS_LITTLE);
- byte_reader.SetAddressSize(8);
- CallFrameInfo parser(contents.data(), contents.size(),
- &byte_reader, &handler, &reporter);
- EXPECT_TRUE(parser.Start());
-}
-
-// An FDE whose CIE specifies a version we don't recognize.
-TEST_F(CFI, BadVersion) {
- CFISection section(kBigEndian, 4);
- Label cie1, cie2;
- section
- .Mark(&cie1)
- .CIEHeader(0xca878cf0, 0x7698ec04, 0x7b616f54, 0x52, "")
- .FinishEntry()
- // We should skip this entry, as its CIE specifies a version we
- // don't recognize.
- .FDEHeader(cie1, 0x08852292, 0x2204004a)
- .FinishEntry()
- // Despite the above, we should visit this entry.
- .Mark(&cie2)
- .CIEHeader(0x7c3ae7c9, 0xb9b9a512, 0x96cb3264, 3, "")
- .FinishEntry()
- .FDEHeader(cie2, 0x2094735a, 0x6e875501)
- .FinishEntry();
-
- PERHAPS_WRITE_DEBUG_FRAME_FILE("BadVersion", section);
-
- EXPECT_CALL(reporter, UnrecognizedVersion(_, 0x52))
- .WillOnce(Return());
-
- {
- InSequence s;
- // We should see no mention of the first FDE, but we should get
- // a call to Entry for the second.
- EXPECT_CALL(handler, Entry(_, 0x2094735a, 0x6e875501, 3, "",
- 0x96cb3264))
- .WillOnce(Return(true));
- EXPECT_CALL(handler, End())
- .WillOnce(Return(true));
- }
-
- string contents;
- EXPECT_TRUE(section.GetContents(&contents));
- ByteReader byte_reader(ENDIANNESS_BIG);
- byte_reader.SetAddressSize(4);
- CallFrameInfo parser(contents.data(), contents.size(),
- &byte_reader, &handler, &reporter);
- EXPECT_FALSE(parser.Start());
-}
-
-// An FDE whose CIE specifies an augmentation we don't recognize.
-TEST_F(CFI, BadAugmentation) {
- CFISection section(kBigEndian, 4);
- Label cie1, cie2;
- section
- .Mark(&cie1)
- .CIEHeader(0x4be22f75, 0x2492236e, 0x6b6efb87, 3, "spaniels!")
- .FinishEntry()
- // We should skip this entry, as its CIE specifies an
- // augmentation we don't recognize.
- .FDEHeader(cie1, 0x7714740d, 0x3d5a10cd)
- .FinishEntry()
- // Despite the above, we should visit this entry.
- .Mark(&cie2)
- .CIEHeader(0xf8bc4399, 0x8cf09931, 0xf2f519b2, 3, "")
- .FinishEntry()
- .FDEHeader(cie2, 0x7bf0fda0, 0xcbcd28d8)
- .FinishEntry();
-
- PERHAPS_WRITE_DEBUG_FRAME_FILE("BadAugmentation", section);
-
- EXPECT_CALL(reporter, UnrecognizedAugmentation(_, "spaniels!"))
- .WillOnce(Return());
-
- {
- InSequence s;
- // We should see no mention of the first FDE, but we should get
- // a call to Entry for the second.
- EXPECT_CALL(handler, Entry(_, 0x7bf0fda0, 0xcbcd28d8, 3, "",
- 0xf2f519b2))
- .WillOnce(Return(true));
- EXPECT_CALL(handler, End())
- .WillOnce(Return(true));
- }
-
- string contents;
- EXPECT_TRUE(section.GetContents(&contents));
- ByteReader byte_reader(ENDIANNESS_BIG);
- byte_reader.SetAddressSize(4);
- CallFrameInfo parser(contents.data(), contents.size(),
- &byte_reader, &handler, &reporter);
- EXPECT_FALSE(parser.Start());
-}
-
-// The return address column field is a byte in CFI version 1
-// (DWARF2), but a ULEB128 value in version 3 (DWARF3).
-TEST_F(CFI, CIEVersion1ReturnColumn) {
- CFISection section(kBigEndian, 4);
- Label cie;
- section
- // CIE, using the version 1 format: return column is a ubyte.
- .Mark(&cie)
- // Use a value for the return column that is parsed differently
- // as a ubyte and as a ULEB128.
- .CIEHeader(0xbcdea24f, 0x5be28286, 0x9f, 1, "")
- .FinishEntry()
- // FDE, citing that CIE.
- .FDEHeader(cie, 0xb8d347b5, 0x825e55dc)
- .FinishEntry();
-
- PERHAPS_WRITE_DEBUG_FRAME_FILE("CIEVersion1ReturnColumn", section);
-
- {
- InSequence s;
- EXPECT_CALL(handler, Entry(_, 0xb8d347b5, 0x825e55dc, 1, "", 0x9f))
- .WillOnce(Return(true));
- EXPECT_CALL(handler, End()).WillOnce(Return(true));
- }
-
- string contents;
- EXPECT_TRUE(section.GetContents(&contents));
- ByteReader byte_reader(ENDIANNESS_BIG);
- byte_reader.SetAddressSize(4);
- CallFrameInfo parser(contents.data(), contents.size(),
- &byte_reader, &handler, &reporter);
- EXPECT_TRUE(parser.Start());
-}
-
-// The return address column field is a byte in CFI version 1
-// (DWARF2), but a ULEB128 value in version 3 (DWARF3).
-TEST_F(CFI, CIEVersion3ReturnColumn) {
- CFISection section(kBigEndian, 4);
- Label cie;
- section
- // CIE, using the version 3 format: return column is a ULEB128.
- .Mark(&cie)
- // Use a value for the return column that is parsed differently
- // as a ubyte and as a ULEB128.
- .CIEHeader(0x0ab4758d, 0xc010fdf7, 0x89, 3, "")
- .FinishEntry()
- // FDE, citing that CIE.
- .FDEHeader(cie, 0x86763f2b, 0x2a66dc23)
- .FinishEntry();
-
- PERHAPS_WRITE_DEBUG_FRAME_FILE("CIEVersion3ReturnColumn", section);
-
- {
- InSequence s;
- EXPECT_CALL(handler, Entry(_, 0x86763f2b, 0x2a66dc23, 3, "", 0x89))
- .WillOnce(Return(true));
- EXPECT_CALL(handler, End()).WillOnce(Return(true));
- }
-
- string contents;
- EXPECT_TRUE(section.GetContents(&contents));
- ByteReader byte_reader(ENDIANNESS_BIG);
- byte_reader.SetAddressSize(4);
- CallFrameInfo parser(contents.data(), contents.size(),
- &byte_reader, &handler, &reporter);
- EXPECT_TRUE(parser.Start());
-}
-
-struct CFIInsnFixture: public CFIFixture {
- CFIInsnFixture() : CFIFixture() {
- data_factor = 0xb6f;
- return_register = 0x9be1ed9f;
- version = 3;
- cfa_base_register = 0x383a3aa;
- cfa_offset = 0xf748;
- }
-
- // Prepare SECTION to receive FDE instructions.
- //
- // - Append a stock CIE header that establishes the fixture's
- // code_factor, data_factor, return_register, version, and
- // augmentation values.
- // - Have the CIE set up a CFA rule using cfa_base_register and
- // cfa_offset.
- // - Append a stock FDE header, referring to the above CIE, for the
- // fde_size bytes at fde_start. Choose fde_start and fde_size
- // appropriately for the section's address size.
- // - Set appropriate expectations on handler in sequence s for the
- // frame description entry and the CIE's CFA rule.
- //
- // On return, SECTION is ready to have FDE instructions appended to
- // it, and its FinishEntry member called.
- void StockCIEAndFDE(CFISection *section) {
- // Choose appropriate constants for our address size.
- if (section->AddressSize() == 4) {
- fde_start = 0xc628ecfbU;
- fde_size = 0x5dee04a2;
- code_factor = 0x60b;
- } else {
- assert(section->AddressSize() == 8);
- fde_start = 0x0005c57ce7806bd3ULL;
- fde_size = 0x2699521b5e333100ULL;
- code_factor = 0x01008e32855274a8ULL;
- }
-
- // Create the CIE.
- (*section)
- .Mark(&cie_label)
- .CIEHeader(code_factor, data_factor, return_register, version,
- "")
- .D8(dwarf2reader::DW_CFA_def_cfa)
- .ULEB128(cfa_base_register)
- .ULEB128(cfa_offset)
- .FinishEntry();
-
- // Create the FDE.
- section->FDEHeader(cie_label, fde_start, fde_size);
-
- // Expect an Entry call for the FDE and a ValOffsetRule call for the
- // CIE's CFA rule.
- EXPECT_CALL(handler, Entry(_, fde_start, fde_size, version, "",
- return_register))
- .InSequence(s)
- .WillOnce(Return(true));
- EXPECT_CALL(handler, ValOffsetRule(fde_start, kCFARegister,
- cfa_base_register, cfa_offset))
- .InSequence(s)
- .WillOnce(Return(true));
- }
-
- // Run the contents of SECTION through a CallFrameInfo parser,
- // expecting parser.Start to return SUCCEEDS
- void ParseSection(CFISection *section, bool succeeds = true) {
- string contents;
- EXPECT_TRUE(section->GetContents(&contents));
- dwarf2reader::Endianness endianness;
- if (section->endianness() == kBigEndian)
- endianness = ENDIANNESS_BIG;
- else {
- assert(section->endianness() == kLittleEndian);
- endianness = ENDIANNESS_LITTLE;
- }
- ByteReader byte_reader(endianness);
- byte_reader.SetAddressSize(section->AddressSize());
- CallFrameInfo parser(contents.data(), contents.size(),
- &byte_reader, &handler, &reporter);
- if (succeeds)
- EXPECT_TRUE(parser.Start());
- else
- EXPECT_FALSE(parser.Start());
- }
-
- Label cie_label;
- Sequence s;
- uint64 code_factor;
- int data_factor;
- unsigned return_register;
- unsigned version;
- unsigned cfa_base_register;
- int cfa_offset;
- uint64 fde_start, fde_size;
-};
-
-class CFIInsn: public CFIInsnFixture, public Test { };
-
-TEST_F(CFIInsn, DW_CFA_set_loc) {
- CFISection section(kBigEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_set_loc).D32(0xb1ee3e7a)
- // Use DW_CFA_def_cfa to force a handler call that we can use to
- // check the effect of the DW_CFA_set_loc.
- .D8(dwarf2reader::DW_CFA_def_cfa).ULEB128(0x4defb431).ULEB128(0x6d17b0ee)
- .FinishEntry();
-
- PERHAPS_WRITE_DEBUG_FRAME_FILE("DW_CFA_set_loc", section);
-
- EXPECT_CALL(handler,
- ValOffsetRule(0xb1ee3e7a, kCFARegister, 0x4defb431, 0x6d17b0ee))
- .InSequence(s)
- .WillOnce(Return(true));
- EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIInsn, DW_CFA_advance_loc) {
- CFISection section(kBigEndian, 8);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_advance_loc | 0x2a)
- // Use DW_CFA_def_cfa to force a handler call that we can use to
- // check the effect of the DW_CFA_advance_loc.
- .D8(dwarf2reader::DW_CFA_def_cfa).ULEB128(0x5bbb3715).ULEB128(0x0186c7bf)
- .FinishEntry();
-
- PERHAPS_WRITE_DEBUG_FRAME_FILE("DW_CFA_advance_loc", section);
-
- EXPECT_CALL(handler,
- ValOffsetRule(fde_start + 0x2a * code_factor,
- kCFARegister, 0x5bbb3715, 0x0186c7bf))
- .InSequence(s)
- .WillOnce(Return(true));
- EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIInsn, DW_CFA_advance_loc1) {
- CFISection section(kLittleEndian, 8);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_advance_loc1).D8(0xd8)
- .D8(dwarf2reader::DW_CFA_def_cfa).ULEB128(0x69d5696a).ULEB128(0x1eb7fc93)
- .FinishEntry();
-
- PERHAPS_WRITE_DEBUG_FRAME_FILE("DW_CFA_advance_loc1", section);
-
- EXPECT_CALL(handler,
- ValOffsetRule((fde_start + 0xd8 * code_factor),
- kCFARegister, 0x69d5696a, 0x1eb7fc93))
- .InSequence(s)
- .WillOnce(Return(true));
- EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIInsn, DW_CFA_advance_loc2) {
- CFISection section(kLittleEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_advance_loc2).D16(0x3adb)
- .D8(dwarf2reader::DW_CFA_def_cfa).ULEB128(0x3a368bed).ULEB128(0x3194ee37)
- .FinishEntry();
-
- PERHAPS_WRITE_DEBUG_FRAME_FILE("DW_CFA_advance_loc2", section);
-
- EXPECT_CALL(handler,
- ValOffsetRule((fde_start + 0x3adb * code_factor),
- kCFARegister, 0x3a368bed, 0x3194ee37))
- .InSequence(s)
- .WillOnce(Return(true));
- EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIInsn, DW_CFA_advance_loc4) {
- CFISection section(kBigEndian, 8);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_advance_loc4).D32(0x15813c88)
- .D8(dwarf2reader::DW_CFA_def_cfa).ULEB128(0x135270c5).ULEB128(0x24bad7cb)
- .FinishEntry();
-
- PERHAPS_WRITE_DEBUG_FRAME_FILE("DW_CFA_advance_loc4", section);
-
- EXPECT_CALL(handler,
- ValOffsetRule((fde_start + 0x15813c88ULL * code_factor),
- kCFARegister, 0x135270c5, 0x24bad7cb))
- .InSequence(s)
- .WillOnce(Return(true));
- EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIInsn, DW_CFA_MIPS_advance_loc8) {
- code_factor = 0x2d;
- CFISection section(kBigEndian, 8);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_MIPS_advance_loc8).D64(0x3c4f3945b92c14ULL)
- .D8(dwarf2reader::DW_CFA_def_cfa).ULEB128(0xe17ed602).ULEB128(0x3d162e7f)
- .FinishEntry();
-
- PERHAPS_WRITE_DEBUG_FRAME_FILE("DW_CFA_advance_loc8", section);
-
- EXPECT_CALL(handler,
- ValOffsetRule((fde_start + 0x3c4f3945b92c14ULL * code_factor),
- kCFARegister, 0xe17ed602, 0x3d162e7f))
- .InSequence(s)
- .WillOnce(Return(true));
- EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIInsn, DW_CFA_def_cfa) {
- CFISection section(kLittleEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_def_cfa).ULEB128(0x4e363a85).ULEB128(0x815f9aa7)
- .FinishEntry();
-
- PERHAPS_WRITE_DEBUG_FRAME_FILE("DW_CFA_def_cfa", section);
-
- EXPECT_CALL(handler,
- ValOffsetRule(fde_start, kCFARegister, 0x4e363a85, 0x815f9aa7))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIInsn, DW_CFA_def_cfa_sf) {
- CFISection section(kBigEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_def_cfa_sf).ULEB128(0x8ccb32b7).LEB128(0x9ea)
- .D8(dwarf2reader::DW_CFA_def_cfa_sf).ULEB128(0x9b40f5da).LEB128(-0x40a2)
- .FinishEntry();
-
- EXPECT_CALL(handler,
- ValOffsetRule(fde_start, kCFARegister, 0x8ccb32b7,
- 0x9ea * data_factor))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler,
- ValOffsetRule(fde_start, kCFARegister, 0x9b40f5da,
- -0x40a2 * data_factor))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIInsn, DW_CFA_def_cfa_register) {
- CFISection section(kLittleEndian, 8);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_def_cfa_register).ULEB128(0x3e7e9363)
- .FinishEntry();
-
- EXPECT_CALL(handler,
- ValOffsetRule(fde_start, kCFARegister, 0x3e7e9363, cfa_offset))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-// DW_CFA_def_cfa_register should have no effect when applied to a
-// non-base/offset rule.
-TEST_F(CFIInsn, DW_CFA_def_cfa_registerBadRule) {
- CFISection section(kBigEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_def_cfa_expression).Block("needle in a haystack")
- .D8(dwarf2reader::DW_CFA_def_cfa_register).ULEB128(0xf1b49e49)
- .FinishEntry();
-
- EXPECT_CALL(handler,
- ValExpressionRule(fde_start, kCFARegister,
- "needle in a haystack"))
- .WillRepeatedly(Return(true));
- EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIInsn, DW_CFA_def_cfa_offset) {
- CFISection section(kBigEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_def_cfa_offset).ULEB128(0x1e8e3b9b)
- .FinishEntry();
-
- EXPECT_CALL(handler,
- ValOffsetRule(fde_start, kCFARegister, cfa_base_register,
- 0x1e8e3b9b))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIInsn, DW_CFA_def_cfa_offset_sf) {
- CFISection section(kLittleEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_def_cfa_offset_sf).LEB128(0x970)
- .D8(dwarf2reader::DW_CFA_def_cfa_offset_sf).LEB128(-0x2cd)
- .FinishEntry();
-
- EXPECT_CALL(handler,
- ValOffsetRule(fde_start, kCFARegister, cfa_base_register,
- 0x970 * data_factor))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler,
- ValOffsetRule(fde_start, kCFARegister, cfa_base_register,
- -0x2cd * data_factor))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-// DW_CFA_def_cfa_offset should have no effect when applied to a
-// non-base/offset rule.
-TEST_F(CFIInsn, DW_CFA_def_cfa_offsetBadRule) {
- CFISection section(kBigEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_def_cfa_expression).Block("six ways to Sunday")
- .D8(dwarf2reader::DW_CFA_def_cfa_offset).ULEB128(0x1e8e3b9b)
- .FinishEntry();
-
- EXPECT_CALL(handler,
- ValExpressionRule(fde_start, kCFARegister, "six ways to Sunday"))
- .WillRepeatedly(Return(true));
- EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIInsn, DW_CFA_def_cfa_expression) {
- CFISection section(kLittleEndian, 8);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_def_cfa_expression).Block("eating crow")
- .FinishEntry();
-
- EXPECT_CALL(handler, ValExpressionRule(fde_start, kCFARegister,
- "eating crow"))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIInsn, DW_CFA_undefined) {
- CFISection section(kLittleEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_undefined).ULEB128(0x300ce45d)
- .FinishEntry();
-
- EXPECT_CALL(handler, UndefinedRule(fde_start, 0x300ce45d))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIInsn, DW_CFA_same_value) {
- CFISection section(kLittleEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_same_value).ULEB128(0x3865a760)
- .FinishEntry();
-
- EXPECT_CALL(handler, SameValueRule(fde_start, 0x3865a760))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIInsn, DW_CFA_offset) {
- CFISection section(kBigEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_offset | 0x2c).ULEB128(0x9f6)
- .FinishEntry();
-
- EXPECT_CALL(handler,
- OffsetRule(fde_start, 0x2c, kCFARegister, 0x9f6 * data_factor))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIInsn, DW_CFA_offset_extended) {
- CFISection section(kBigEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_offset_extended).ULEB128(0x402b).ULEB128(0xb48)
- .FinishEntry();
-
- EXPECT_CALL(handler,
- OffsetRule(fde_start, 0x402b, kCFARegister, 0xb48 * data_factor))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIInsn, DW_CFA_offset_extended_sf) {
- CFISection section(kBigEndian, 8);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_offset_extended_sf)
- .ULEB128(0x997c23ee).LEB128(0x2d00)
- .D8(dwarf2reader::DW_CFA_offset_extended_sf)
- .ULEB128(0x9519eb82).LEB128(-0xa77)
- .FinishEntry();
-
- EXPECT_CALL(handler,
- OffsetRule(fde_start, 0x997c23ee,
- kCFARegister, 0x2d00 * data_factor))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler,
- OffsetRule(fde_start, 0x9519eb82,
- kCFARegister, -0xa77 * data_factor))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIInsn, DW_CFA_val_offset) {
- CFISection section(kBigEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_val_offset).ULEB128(0x623562fe).ULEB128(0x673)
- .FinishEntry();
-
- EXPECT_CALL(handler,
- ValOffsetRule(fde_start, 0x623562fe,
- kCFARegister, 0x673 * data_factor))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIInsn, DW_CFA_val_offset_sf) {
- CFISection section(kBigEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_val_offset_sf).ULEB128(0x6f4f).LEB128(0xaab)
- .D8(dwarf2reader::DW_CFA_val_offset_sf).ULEB128(0x2483).LEB128(-0x8a2)
- .FinishEntry();
-
- EXPECT_CALL(handler,
- ValOffsetRule(fde_start, 0x6f4f,
- kCFARegister, 0xaab * data_factor))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler,
- ValOffsetRule(fde_start, 0x2483,
- kCFARegister, -0x8a2 * data_factor))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIInsn, DW_CFA_register) {
- CFISection section(kLittleEndian, 8);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_register).ULEB128(0x278d18f9).ULEB128(0x1a684414)
- .FinishEntry();
-
- EXPECT_CALL(handler, RegisterRule(fde_start, 0x278d18f9, 0x1a684414))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIInsn, DW_CFA_expression) {
- CFISection section(kBigEndian, 8);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_expression).ULEB128(0xa1619fb2)
- .Block("plus ça change, plus c'est la même chose")
- .FinishEntry();
-
- EXPECT_CALL(handler,
- ExpressionRule(fde_start, 0xa1619fb2,
- "plus ça change, plus c'est la même chose"))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIInsn, DW_CFA_val_expression) {
- CFISection section(kBigEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_val_expression).ULEB128(0xc5e4a9e3)
- .Block("he who has the gold makes the rules")
- .FinishEntry();
-
- EXPECT_CALL(handler,
- ValExpressionRule(fde_start, 0xc5e4a9e3,
- "he who has the gold makes the rules"))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIInsn, DW_CFA_restore) {
- CFISection section(kLittleEndian, 8);
- code_factor = 0x01bd188a9b1fa083ULL;
- data_factor = -0x1ac8;
- return_register = 0x8c35b049;
- version = 2;
- fde_start = 0x2d70fe998298bbb1ULL;
- fde_size = 0x46ccc2e63cf0b108ULL;
- Label cie;
- section
- .Mark(&cie)
- .CIEHeader(code_factor, data_factor, return_register, version,
- "")
- // Provide a CFA rule, because register rules require them.
- .D8(dwarf2reader::DW_CFA_def_cfa).ULEB128(0x6ca1d50e).ULEB128(0x372e38e8)
- // Provide an offset(N) rule for register 0x3c.
- .D8(dwarf2reader::DW_CFA_offset | 0x3c).ULEB128(0xb348)
- .FinishEntry()
- // In the FDE...
- .FDEHeader(cie, fde_start, fde_size)
- // At a second address, provide a new offset(N) rule for register 0x3c.
- .D8(dwarf2reader::DW_CFA_advance_loc | 0x13)
- .D8(dwarf2reader::DW_CFA_offset | 0x3c).ULEB128(0x9a50)
- // At a third address, restore the original rule for register 0x3c.
- .D8(dwarf2reader::DW_CFA_advance_loc | 0x01)
- .D8(dwarf2reader::DW_CFA_restore | 0x3c)
- .FinishEntry();
-
- {
- InSequence s;
- EXPECT_CALL(handler,
- Entry(_, fde_start, fde_size, version, "", return_register))
- .WillOnce(Return(true));
- // CIE's CFA rule.
- EXPECT_CALL(handler,
- ValOffsetRule(fde_start, kCFARegister, 0x6ca1d50e, 0x372e38e8))
- .WillOnce(Return(true));
- // CIE's rule for register 0x3c.
- EXPECT_CALL(handler,
- OffsetRule(fde_start, 0x3c, kCFARegister, 0xb348 * data_factor))
- .WillOnce(Return(true));
- // FDE's rule for register 0x3c.
- EXPECT_CALL(handler,
- OffsetRule(fde_start + 0x13 * code_factor, 0x3c,
- kCFARegister, 0x9a50 * data_factor))
- .WillOnce(Return(true));
- // Restore CIE's rule for register 0x3c.
- EXPECT_CALL(handler,
- OffsetRule(fde_start + (0x13 + 0x01) * code_factor, 0x3c,
- kCFARegister, 0xb348 * data_factor))
- .WillOnce(Return(true));
- EXPECT_CALL(handler, End()).WillOnce(Return(true));
- }
-
- ParseSection(&section);
-}
-
-TEST_F(CFIInsn, DW_CFA_restoreNoRule) {
- CFISection section(kBigEndian, 4);
- code_factor = 0x005f78143c1c3b82ULL;
- data_factor = 0x25d0;
- return_register = 0xe8;
- version = 1;
- fde_start = 0x4062e30f;
- fde_size = 0x5302a389;
- Label cie;
- section
- .Mark(&cie)
- .CIEHeader(code_factor, data_factor, return_register, version, "")
- // Provide a CFA rule, because register rules require them.
- .D8(dwarf2reader::DW_CFA_def_cfa).ULEB128(0x470aa334).ULEB128(0x099ef127)
- .FinishEntry()
- // In the FDE...
- .FDEHeader(cie, fde_start, fde_size)
- // At a second address, provide an offset(N) rule for register 0x2c.
- .D8(dwarf2reader::DW_CFA_advance_loc | 0x7)
- .D8(dwarf2reader::DW_CFA_offset | 0x2c).ULEB128(0x1f47)
- // At a third address, restore the (missing) CIE rule for register 0x2c.
- .D8(dwarf2reader::DW_CFA_advance_loc | 0xb)
- .D8(dwarf2reader::DW_CFA_restore | 0x2c)
- .FinishEntry();
-
- {
- InSequence s;
- EXPECT_CALL(handler,
- Entry(_, fde_start, fde_size, version, "", return_register))
- .WillOnce(Return(true));
- // CIE's CFA rule.
- EXPECT_CALL(handler,
- ValOffsetRule(fde_start, kCFARegister, 0x470aa334, 0x099ef127))
- .WillOnce(Return(true));
- // FDE's rule for register 0x2c.
- EXPECT_CALL(handler,
- OffsetRule(fde_start + 0x7 * code_factor, 0x2c,
- kCFARegister, 0x1f47 * data_factor))
- .WillOnce(Return(true));
- // Restore CIE's (missing) rule for register 0x2c.
- EXPECT_CALL(handler,
- SameValueRule(fde_start + (0x7 + 0xb) * code_factor, 0x2c))
- .WillOnce(Return(true));
- EXPECT_CALL(handler, End()).WillOnce(Return(true));
- }
-
- ParseSection(&section);
-}
-
-TEST_F(CFIInsn, DW_CFA_restore_extended) {
- CFISection section(kBigEndian, 4);
- code_factor = 0x126e;
- data_factor = -0xd8b;
- return_register = 0x77711787;
- version = 3;
- fde_start = 0x01f55a45;
- fde_size = 0x452adb80;
- Label cie;
- section
- .Mark(&cie)
- .CIEHeader(code_factor, data_factor, return_register, version,
- "", true /* dwarf64 */ )
- // Provide a CFA rule, because register rules require them.
- .D8(dwarf2reader::DW_CFA_def_cfa).ULEB128(0x56fa0edd).ULEB128(0x097f78a5)
- // Provide an offset(N) rule for register 0x0f9b8a1c.
- .D8(dwarf2reader::DW_CFA_offset_extended)
- .ULEB128(0x0f9b8a1c).ULEB128(0xc979)
- .FinishEntry()
- // In the FDE...
- .FDEHeader(cie, fde_start, fde_size)
- // At a second address, provide a new offset(N) rule for reg 0x0f9b8a1c.
- .D8(dwarf2reader::DW_CFA_advance_loc | 0x3)
- .D8(dwarf2reader::DW_CFA_offset_extended)
- .ULEB128(0x0f9b8a1c).ULEB128(0x3b7b)
- // At a third address, restore the original rule for register 0x0f9b8a1c.
- .D8(dwarf2reader::DW_CFA_advance_loc | 0x04)
- .D8(dwarf2reader::DW_CFA_restore_extended).ULEB128(0x0f9b8a1c)
- .FinishEntry();
-
- {
- InSequence s;
- EXPECT_CALL(handler,
- Entry(_, fde_start, fde_size, version, "", return_register))
- .WillOnce(Return(true));
- // CIE's CFA rule.
- EXPECT_CALL(handler,
- ValOffsetRule(fde_start, kCFARegister, 0x56fa0edd, 0x097f78a5))
- .WillOnce(Return(true));
- // CIE's rule for register 0x0f9b8a1c.
- EXPECT_CALL(handler,
- OffsetRule(fde_start, 0x0f9b8a1c, kCFARegister,
- 0xc979 * data_factor))
- .WillOnce(Return(true));
- // FDE's rule for register 0x0f9b8a1c.
- EXPECT_CALL(handler,
- OffsetRule(fde_start + 0x3 * code_factor, 0x0f9b8a1c,
- kCFARegister, 0x3b7b * data_factor))
- .WillOnce(Return(true));
- // Restore CIE's rule for register 0x0f9b8a1c.
- EXPECT_CALL(handler,
- OffsetRule(fde_start + (0x3 + 0x4) * code_factor, 0x0f9b8a1c,
- kCFARegister, 0xc979 * data_factor))
- .WillOnce(Return(true));
- EXPECT_CALL(handler, End()).WillOnce(Return(true));
- }
-
- ParseSection(&section);
-}
-
-TEST_F(CFIInsn, DW_CFA_remember_and_restore_state) {
- CFISection section(kLittleEndian, 8);
- StockCIEAndFDE(&section);
-
- // We create a state, save it, modify it, and then restore. We
- // refer to the state that is overridden the restore as the
- // "outgoing" state, and the restored state the "incoming" state.
- //
- // Register outgoing incoming expect
- // 1 offset(N) no rule new "same value" rule
- // 2 register(R) offset(N) report changed rule
- // 3 offset(N) offset(M) report changed offset
- // 4 offset(N) offset(N) no report
- // 5 offset(N) no rule new "same value" rule
- section
- // Create the "incoming" state, which we will save and later restore.
- .D8(dwarf2reader::DW_CFA_offset | 2).ULEB128(0x9806)
- .D8(dwarf2reader::DW_CFA_offset | 3).ULEB128(0x995d)
- .D8(dwarf2reader::DW_CFA_offset | 4).ULEB128(0x7055)
- .D8(dwarf2reader::DW_CFA_remember_state)
- // Advance to a new instruction; an implementation could legitimately
- // ignore all but the final rule for a given register at a given address.
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- // Create the "outgoing" state, which we will discard.
- .D8(dwarf2reader::DW_CFA_offset | 1).ULEB128(0xea1a)
- .D8(dwarf2reader::DW_CFA_register).ULEB128(2).ULEB128(0x1d2a3767)
- .D8(dwarf2reader::DW_CFA_offset | 3).ULEB128(0xdd29)
- .D8(dwarf2reader::DW_CFA_offset | 5).ULEB128(0xf1ce)
- // At a third address, restore the incoming state.
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_restore_state)
- .FinishEntry();
-
- uint64 addr = fde_start;
-
- // Expect the incoming rules to be reported.
- EXPECT_CALL(handler, OffsetRule(addr, 2, kCFARegister, 0x9806 * data_factor))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, OffsetRule(addr, 3, kCFARegister, 0x995d * data_factor))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, OffsetRule(addr, 4, kCFARegister, 0x7055 * data_factor))
- .InSequence(s).WillOnce(Return(true));
-
- addr += code_factor;
-
- // After the save, we establish the outgoing rule set.
- EXPECT_CALL(handler, OffsetRule(addr, 1, kCFARegister, 0xea1a * data_factor))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, RegisterRule(addr, 2, 0x1d2a3767))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, OffsetRule(addr, 3, kCFARegister, 0xdd29 * data_factor))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, OffsetRule(addr, 5, kCFARegister, 0xf1ce * data_factor))
- .InSequence(s).WillOnce(Return(true));
-
- addr += code_factor;
-
- // Finally, after the restore, expect to see the differences from
- // the outgoing to the incoming rules reported.
- EXPECT_CALL(handler, SameValueRule(addr, 1))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, OffsetRule(addr, 2, kCFARegister, 0x9806 * data_factor))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, OffsetRule(addr, 3, kCFARegister, 0x995d * data_factor))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, SameValueRule(addr, 5))
- .InSequence(s).WillOnce(Return(true));
-
- EXPECT_CALL(handler, End()).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-// Check that restoring a rule set reports changes to the CFA rule.
-TEST_F(CFIInsn, DW_CFA_remember_and_restore_stateCFA) {
- CFISection section(kBigEndian, 4);
- StockCIEAndFDE(&section);
-
- section
- .D8(dwarf2reader::DW_CFA_remember_state)
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_def_cfa_offset).ULEB128(0x90481102)
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_restore_state)
- .FinishEntry();
-
- EXPECT_CALL(handler, ValOffsetRule(fde_start + code_factor, kCFARegister,
- cfa_base_register, 0x90481102))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, ValOffsetRule(fde_start + code_factor * 2, kCFARegister,
- cfa_base_register, cfa_offset))
- .InSequence(s).WillOnce(Return(true));
-
- EXPECT_CALL(handler, End()).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIInsn, DW_CFA_nop) {
- CFISection section(kLittleEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_nop)
- .D8(dwarf2reader::DW_CFA_def_cfa).ULEB128(0x3fb8d4f1).ULEB128(0x078dc67b)
- .D8(dwarf2reader::DW_CFA_nop)
- .FinishEntry();
-
- EXPECT_CALL(handler,
- ValOffsetRule(fde_start, kCFARegister, 0x3fb8d4f1, 0x078dc67b))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIInsn, DW_CFA_GNU_window_save) {
- CFISection section(kBigEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_GNU_window_save)
- .FinishEntry();
-
- // Don't include all the rules in any particular sequence.
-
- // The caller's %o0-%o7 have become the callee's %i0-%i7. This is
- // the GCC register numbering.
- for (int i = 8; i < 16; i++)
- EXPECT_CALL(handler, RegisterRule(fde_start, i, i + 16))
- .WillOnce(Return(true));
- // The caller's %l0-%l7 and %i0-%i7 have been saved at the top of
- // its frame.
- for (int i = 16; i < 32; i++)
- EXPECT_CALL(handler, OffsetRule(fde_start, i, kCFARegister, (i-16) * 4))
- .WillOnce(Return(true));
-
- EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIInsn, DW_CFA_GNU_args_size) {
- CFISection section(kLittleEndian, 8);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_GNU_args_size).ULEB128(0xeddfa520)
- // Verify that we see this, meaning we parsed the above properly.
- .D8(dwarf2reader::DW_CFA_offset | 0x23).ULEB128(0x269)
- .FinishEntry();
-
- EXPECT_CALL(handler,
- OffsetRule(fde_start, 0x23, kCFARegister, 0x269 * data_factor))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIInsn, DW_CFA_GNU_negative_offset_extended) {
- CFISection section(kLittleEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_GNU_negative_offset_extended)
- .ULEB128(0x430cc87a).ULEB128(0x613)
- .FinishEntry();
-
- EXPECT_CALL(handler,
- OffsetRule(fde_start, 0x430cc87a,
- kCFARegister, -0x613 * data_factor))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-// Three FDEs: skip the second
-TEST_F(CFIInsn, SkipFDE) {
- CFISection section(kBigEndian, 4);
- Label cie;
- section
- // CIE, used by all FDEs.
- .Mark(&cie)
- .CIEHeader(0x010269f2, 0x9177, 0xedca5849, 2, "")
- .D8(dwarf2reader::DW_CFA_def_cfa).ULEB128(0x42ed390b).ULEB128(0x98f43aad)
- .FinishEntry()
- // First FDE.
- .FDEHeader(cie, 0xa870ebdd, 0x60f6aa4)
- .D8(dwarf2reader::DW_CFA_register).ULEB128(0x3a860351).ULEB128(0x6c9a6bcf)
- .FinishEntry()
- // Second FDE.
- .FDEHeader(cie, 0xc534f7c0, 0xf6552e9, true /* dwarf64 */)
- .D8(dwarf2reader::DW_CFA_register).ULEB128(0x1b62c234).ULEB128(0x26586b18)
- .FinishEntry()
- // Third FDE.
- .FDEHeader(cie, 0xf681cfc8, 0x7e4594e)
- .D8(dwarf2reader::DW_CFA_register).ULEB128(0x26c53934).ULEB128(0x18eeb8a4)
- .FinishEntry();
-
- {
- InSequence s;
-
- // Process the first FDE.
- EXPECT_CALL(handler, Entry(_, 0xa870ebdd, 0x60f6aa4, 2, "", 0xedca5849))
- .WillOnce(Return(true));
- EXPECT_CALL(handler, ValOffsetRule(0xa870ebdd, kCFARegister,
- 0x42ed390b, 0x98f43aad))
- .WillOnce(Return(true));
- EXPECT_CALL(handler, RegisterRule(0xa870ebdd, 0x3a860351, 0x6c9a6bcf))
- .WillOnce(Return(true));
- EXPECT_CALL(handler, End())
- .WillOnce(Return(true));
-
- // Skip the second FDE.
- EXPECT_CALL(handler, Entry(_, 0xc534f7c0, 0xf6552e9, 2, "", 0xedca5849))
- .WillOnce(Return(false));
-
- // Process the third FDE.
- EXPECT_CALL(handler, Entry(_, 0xf681cfc8, 0x7e4594e, 2, "", 0xedca5849))
- .WillOnce(Return(true));
- EXPECT_CALL(handler, ValOffsetRule(0xf681cfc8, kCFARegister,
- 0x42ed390b, 0x98f43aad))
- .WillOnce(Return(true));
- EXPECT_CALL(handler, RegisterRule(0xf681cfc8, 0x26c53934, 0x18eeb8a4))
- .WillOnce(Return(true));
- EXPECT_CALL(handler, End())
- .WillOnce(Return(true));
- }
-
- ParseSection(&section);
-}
-
-// Quit processing in the middle of an entry's instructions.
-TEST_F(CFIInsn, QuitMidentry) {
- CFISection section(kLittleEndian, 8);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_register).ULEB128(0xe0cf850d).ULEB128(0x15aab431)
- .D8(dwarf2reader::DW_CFA_expression).ULEB128(0x46750aa5).Block("meat")
- .FinishEntry();
-
- EXPECT_CALL(handler, RegisterRule(fde_start, 0xe0cf850d, 0x15aab431))
- .InSequence(s).WillOnce(Return(false));
- EXPECT_CALL(handler, End())
- .InSequence(s).WillOnce(Return(true));
-
- ParseSection(&section, false);
-}
-
-class CFIRestore: public CFIInsnFixture, public Test { };
-
-TEST_F(CFIRestore, RestoreUndefinedRuleUnchanged) {
- CFISection section(kLittleEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_undefined).ULEB128(0x0bac878e)
- .D8(dwarf2reader::DW_CFA_remember_state)
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_restore_state)
- .FinishEntry();
-
- EXPECT_CALL(handler, UndefinedRule(fde_start, 0x0bac878e))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIRestore, RestoreUndefinedRuleChanged) {
- CFISection section(kLittleEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_undefined).ULEB128(0x7dedff5f)
- .D8(dwarf2reader::DW_CFA_remember_state)
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_same_value).ULEB128(0x7dedff5f)
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_restore_state)
- .FinishEntry();
-
- EXPECT_CALL(handler, UndefinedRule(fde_start, 0x7dedff5f))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, SameValueRule(fde_start + code_factor, 0x7dedff5f))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, UndefinedRule(fde_start + 2 * code_factor, 0x7dedff5f))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIRestore, RestoreSameValueRuleUnchanged) {
- CFISection section(kLittleEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_same_value).ULEB128(0xadbc9b3a)
- .D8(dwarf2reader::DW_CFA_remember_state)
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_restore_state)
- .FinishEntry();
-
- EXPECT_CALL(handler, SameValueRule(fde_start, 0xadbc9b3a))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIRestore, RestoreSameValueRuleChanged) {
- CFISection section(kLittleEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_same_value).ULEB128(0x3d90dcb5)
- .D8(dwarf2reader::DW_CFA_remember_state)
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_undefined).ULEB128(0x3d90dcb5)
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_restore_state)
- .FinishEntry();
-
- EXPECT_CALL(handler, SameValueRule(fde_start, 0x3d90dcb5))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, UndefinedRule(fde_start + code_factor, 0x3d90dcb5))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, SameValueRule(fde_start + 2 * code_factor, 0x3d90dcb5))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIRestore, RestoreOffsetRuleUnchanged) {
- CFISection section(kLittleEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_offset | 0x14).ULEB128(0xb6f)
- .D8(dwarf2reader::DW_CFA_remember_state)
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_restore_state)
- .FinishEntry();
-
- EXPECT_CALL(handler, OffsetRule(fde_start, 0x14,
- kCFARegister, 0xb6f * data_factor))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIRestore, RestoreOffsetRuleChanged) {
- CFISection section(kLittleEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_offset | 0x21).ULEB128(0xeb7)
- .D8(dwarf2reader::DW_CFA_remember_state)
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_undefined).ULEB128(0x21)
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_restore_state)
- .FinishEntry();
-
- EXPECT_CALL(handler, OffsetRule(fde_start, 0x21,
- kCFARegister, 0xeb7 * data_factor))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, UndefinedRule(fde_start + code_factor, 0x21))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, OffsetRule(fde_start + 2 * code_factor, 0x21,
- kCFARegister, 0xeb7 * data_factor))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIRestore, RestoreOffsetRuleChangedOffset) {
- CFISection section(kLittleEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_offset | 0x21).ULEB128(0x134)
- .D8(dwarf2reader::DW_CFA_remember_state)
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_offset | 0x21).ULEB128(0xf4f)
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_restore_state)
- .FinishEntry();
-
- EXPECT_CALL(handler, OffsetRule(fde_start, 0x21,
- kCFARegister, 0x134 * data_factor))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, OffsetRule(fde_start + code_factor, 0x21,
- kCFARegister, 0xf4f * data_factor))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, OffsetRule(fde_start + 2 * code_factor, 0x21,
- kCFARegister, 0x134 * data_factor))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIRestore, RestoreValOffsetRuleUnchanged) {
- CFISection section(kLittleEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_val_offset).ULEB128(0x829caee6).ULEB128(0xe4c)
- .D8(dwarf2reader::DW_CFA_remember_state)
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_restore_state)
- .FinishEntry();
-
- EXPECT_CALL(handler, ValOffsetRule(fde_start, 0x829caee6,
- kCFARegister, 0xe4c * data_factor))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIRestore, RestoreValOffsetRuleChanged) {
- CFISection section(kLittleEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_val_offset).ULEB128(0xf17c36d6).ULEB128(0xeb7)
- .D8(dwarf2reader::DW_CFA_remember_state)
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_undefined).ULEB128(0xf17c36d6)
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_restore_state)
- .FinishEntry();
-
- EXPECT_CALL(handler, ValOffsetRule(fde_start, 0xf17c36d6,
- kCFARegister, 0xeb7 * data_factor))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, UndefinedRule(fde_start + code_factor, 0xf17c36d6))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, ValOffsetRule(fde_start + 2 * code_factor, 0xf17c36d6,
- kCFARegister, 0xeb7 * data_factor))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIRestore, RestoreValOffsetRuleChangedValOffset) {
- CFISection section(kLittleEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_val_offset).ULEB128(0x2cf0ab1b).ULEB128(0x562)
- .D8(dwarf2reader::DW_CFA_remember_state)
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_val_offset).ULEB128(0x2cf0ab1b).ULEB128(0xe88)
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_restore_state)
- .FinishEntry();
-
- EXPECT_CALL(handler, ValOffsetRule(fde_start, 0x2cf0ab1b,
- kCFARegister, 0x562 * data_factor))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, ValOffsetRule(fde_start + code_factor, 0x2cf0ab1b,
- kCFARegister, 0xe88 * data_factor))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, ValOffsetRule(fde_start + 2 * code_factor, 0x2cf0ab1b,
- kCFARegister, 0x562 * data_factor))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIRestore, RestoreRegisterRuleUnchanged) {
- CFISection section(kLittleEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_register).ULEB128(0x77514acc).ULEB128(0x464de4ce)
- .D8(dwarf2reader::DW_CFA_remember_state)
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_restore_state)
- .FinishEntry();
-
- EXPECT_CALL(handler, RegisterRule(fde_start, 0x77514acc, 0x464de4ce))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIRestore, RestoreRegisterRuleChanged) {
- CFISection section(kLittleEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_register).ULEB128(0xe39acce5).ULEB128(0x095f1559)
- .D8(dwarf2reader::DW_CFA_remember_state)
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_undefined).ULEB128(0xe39acce5)
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_restore_state)
- .FinishEntry();
-
- EXPECT_CALL(handler, RegisterRule(fde_start, 0xe39acce5, 0x095f1559))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, UndefinedRule(fde_start + code_factor, 0xe39acce5))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, RegisterRule(fde_start + 2 * code_factor, 0xe39acce5,
- 0x095f1559))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIRestore, RestoreRegisterRuleChangedRegister) {
- CFISection section(kLittleEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_register).ULEB128(0xd40e21b1).ULEB128(0x16607d6a)
- .D8(dwarf2reader::DW_CFA_remember_state)
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_register).ULEB128(0xd40e21b1).ULEB128(0xbabb4742)
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_restore_state)
- .FinishEntry();
-
- EXPECT_CALL(handler, RegisterRule(fde_start, 0xd40e21b1, 0x16607d6a))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, RegisterRule(fde_start + code_factor, 0xd40e21b1,
- 0xbabb4742))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, RegisterRule(fde_start + 2 * code_factor, 0xd40e21b1,
- 0x16607d6a))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIRestore, RestoreExpressionRuleUnchanged) {
- CFISection section(kLittleEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_expression).ULEB128(0x666ae152).Block("dwarf")
- .D8(dwarf2reader::DW_CFA_remember_state)
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_restore_state)
- .FinishEntry();
-
- EXPECT_CALL(handler, ExpressionRule(fde_start, 0x666ae152, "dwarf"))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIRestore, RestoreExpressionRuleChanged) {
- CFISection section(kLittleEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_expression).ULEB128(0xb5ca5c46).Block("elf")
- .D8(dwarf2reader::DW_CFA_remember_state)
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_undefined).ULEB128(0xb5ca5c46)
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_restore_state)
- .FinishEntry();
-
- EXPECT_CALL(handler, ExpressionRule(fde_start, 0xb5ca5c46, "elf"))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, UndefinedRule(fde_start + code_factor, 0xb5ca5c46))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, ExpressionRule(fde_start + 2 * code_factor, 0xb5ca5c46,
- "elf"))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIRestore, RestoreExpressionRuleChangedExpression) {
- CFISection section(kLittleEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_expression).ULEB128(0x500f5739).Block("smurf")
- .D8(dwarf2reader::DW_CFA_remember_state)
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_expression).ULEB128(0x500f5739).Block("orc")
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_restore_state)
- .FinishEntry();
-
- EXPECT_CALL(handler, ExpressionRule(fde_start, 0x500f5739, "smurf"))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, ExpressionRule(fde_start + code_factor, 0x500f5739,
- "orc"))
- .InSequence(s).WillOnce(Return(true));
- // Expectations are not wishes.
- EXPECT_CALL(handler, ExpressionRule(fde_start + 2 * code_factor, 0x500f5739,
- "smurf"))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIRestore, RestoreValExpressionRuleUnchanged) {
- CFISection section(kLittleEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_val_expression).ULEB128(0x666ae152)
- .Block("hideous")
- .D8(dwarf2reader::DW_CFA_remember_state)
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_restore_state)
- .FinishEntry();
-
- EXPECT_CALL(handler, ValExpressionRule(fde_start, 0x666ae152, "hideous"))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIRestore, RestoreValExpressionRuleChanged) {
- CFISection section(kLittleEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_val_expression).ULEB128(0xb5ca5c46)
- .Block("revolting")
- .D8(dwarf2reader::DW_CFA_remember_state)
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_undefined).ULEB128(0xb5ca5c46)
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_restore_state)
- .FinishEntry();
-
- PERHAPS_WRITE_DEBUG_FRAME_FILE("RestoreValExpressionRuleChanged", section);
-
- EXPECT_CALL(handler, ValExpressionRule(fde_start, 0xb5ca5c46, "revolting"))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, UndefinedRule(fde_start + code_factor, 0xb5ca5c46))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, ValExpressionRule(fde_start + 2 * code_factor, 0xb5ca5c46,
- "revolting"))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-TEST_F(CFIRestore, RestoreValExpressionRuleChangedValExpression) {
- CFISection section(kLittleEndian, 4);
- StockCIEAndFDE(&section);
- section
- .D8(dwarf2reader::DW_CFA_val_expression).ULEB128(0x500f5739)
- .Block("repulsive")
- .D8(dwarf2reader::DW_CFA_remember_state)
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_val_expression).ULEB128(0x500f5739)
- .Block("nauseous")
- .D8(dwarf2reader::DW_CFA_advance_loc | 1)
- .D8(dwarf2reader::DW_CFA_restore_state)
- .FinishEntry();
-
- PERHAPS_WRITE_DEBUG_FRAME_FILE("RestoreValExpressionRuleChangedValExpression",
- section);
-
- EXPECT_CALL(handler, ValExpressionRule(fde_start, 0x500f5739, "repulsive"))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, ValExpressionRule(fde_start + code_factor, 0x500f5739,
- "nauseous"))
- .InSequence(s).WillOnce(Return(true));
- // Expectations are not wishes.
- EXPECT_CALL(handler, ValExpressionRule(fde_start + 2 * code_factor, 0x500f5739,
- "repulsive"))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End()).WillOnce(Return(true));
-
- ParseSection(&section);
-}
-
-struct EHFrameFixture: public CFIInsnFixture {
- EHFrameFixture()
- : CFIInsnFixture(), section(kBigEndian, 4, true) {
- encoded_pointer_bases.cfi = 0x7f496cb2;
- encoded_pointer_bases.text = 0x540f67b6;
- encoded_pointer_bases.data = 0xe3eab768;
- section.SetEncodedPointerBases(encoded_pointer_bases);
- }
- CFISection section;
- CFISection::EncodedPointerBases encoded_pointer_bases;
-
- // Parse CFIInsnFixture::ParseSection, but parse the section as
- // .eh_frame data, supplying stock base addresses.
- void ParseEHFrameSection(CFISection *section, bool succeeds = true) {
- EXPECT_TRUE(section->ContainsEHFrame());
- string contents;
- EXPECT_TRUE(section->GetContents(&contents));
- dwarf2reader::Endianness endianness;
- if (section->endianness() == kBigEndian)
- endianness = ENDIANNESS_BIG;
- else {
- assert(section->endianness() == kLittleEndian);
- endianness = ENDIANNESS_LITTLE;
- }
- ByteReader byte_reader(endianness);
- byte_reader.SetAddressSize(section->AddressSize());
- byte_reader.SetCFIDataBase(encoded_pointer_bases.cfi, contents.data());
- byte_reader.SetTextBase(encoded_pointer_bases.text);
- byte_reader.SetDataBase(encoded_pointer_bases.data);
- CallFrameInfo parser(contents.data(), contents.size(),
- &byte_reader, &handler, &reporter, true);
- if (succeeds)
- EXPECT_TRUE(parser.Start());
- else
- EXPECT_FALSE(parser.Start());
- }
-
-};
-
-class EHFrame: public EHFrameFixture, public Test { };
-
-// A simple CIE, an FDE, and a terminator.
-TEST_F(EHFrame, Terminator) {
- Label cie;
- section
- .Mark(&cie)
- .CIEHeader(9968, 2466, 67, 1, "")
- .D8(dwarf2reader::DW_CFA_def_cfa).ULEB128(3772).ULEB128(1372)
- .FinishEntry()
- .FDEHeader(cie, 0x848037a1, 0x7b30475e)
- .D8(dwarf2reader::DW_CFA_set_loc).D32(0x17713850)
- .D8(dwarf2reader::DW_CFA_undefined).ULEB128(5721)
- .FinishEntry()
- .D32(0) // Terminate the sequence.
- // This FDE should be ignored.
- .FDEHeader(cie, 0xf19629fe, 0x439fb09b)
- .FinishEntry();
-
- PERHAPS_WRITE_EH_FRAME_FILE("EHFrame.Terminator", section);
-
- EXPECT_CALL(handler, Entry(_, 0x848037a1, 0x7b30475e, 1, "", 67))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, ValOffsetRule(0x848037a1, kCFARegister, 3772, 1372))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, UndefinedRule(0x17713850, 5721))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End())
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(reporter, EarlyEHTerminator(_))
- .InSequence(s).WillOnce(Return());
-
- ParseEHFrameSection(&section);
-}
-
-// The parser should recognize the Linux Standards Base 'z' augmentations.
-TEST_F(EHFrame, SimpleFDE) {
- DwarfPointerEncoding lsda_encoding =
- DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect
- | dwarf2reader::DW_EH_PE_datarel
- | dwarf2reader::DW_EH_PE_sdata2);
- DwarfPointerEncoding fde_encoding =
- DwarfPointerEncoding(dwarf2reader::DW_EH_PE_textrel
- | dwarf2reader::DW_EH_PE_udata2);
-
- section.SetPointerEncoding(fde_encoding);
- section.SetEncodedPointerBases(encoded_pointer_bases);
- Label cie;
- section
- .Mark(&cie)
- .CIEHeader(4873, 7012, 100, 1, "zSLPR")
- .ULEB128(7) // Augmentation data length
- .D8(lsda_encoding) // LSDA pointer format
- .D8(dwarf2reader::DW_EH_PE_pcrel) // personality pointer format
- .EncodedPointer(0x97baa00, dwarf2reader::DW_EH_PE_pcrel) // and value
- .D8(fde_encoding) // FDE pointer format
- .D8(dwarf2reader::DW_CFA_def_cfa).ULEB128(6706).ULEB128(31)
- .FinishEntry()
- .FDEHeader(cie, 0x540f6b56, 0xf686)
- .ULEB128(2) // Augmentation data length
- .EncodedPointer(0xe3eab475, lsda_encoding) // LSDA pointer, signed
- .D8(dwarf2reader::DW_CFA_set_loc)
- .EncodedPointer(0x540fa4ce, fde_encoding)
- .D8(dwarf2reader::DW_CFA_undefined).ULEB128(0x675e)
- .FinishEntry()
- .D32(0); // terminator
-
- PERHAPS_WRITE_EH_FRAME_FILE("EHFrame.SimpleFDE", section);
-
- EXPECT_CALL(handler, Entry(_, 0x540f6b56, 0xf686, 1, "zSLPR", 100))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, PersonalityRoutine(0x97baa00, false))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, LanguageSpecificDataArea(0xe3eab475, true))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, SignalHandler())
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, ValOffsetRule(0x540f6b56, kCFARegister, 6706, 31))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, UndefinedRule(0x540fa4ce, 0x675e))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End())
- .InSequence(s).WillOnce(Return(true));
-
- ParseEHFrameSection(&section);
-}
-
-// Check that we can handle an empty 'z' augmentation.
-TEST_F(EHFrame, EmptyZ) {
- Label cie;
- section
- .Mark(&cie)
- .CIEHeader(5955, 5805, 228, 1, "z")
- .ULEB128(0) // Augmentation data length
- .D8(dwarf2reader::DW_CFA_def_cfa).ULEB128(3629).ULEB128(247)
- .FinishEntry()
- .FDEHeader(cie, 0xda007738, 0xfb55c641)
- .ULEB128(0) // Augmentation data length
- .D8(dwarf2reader::DW_CFA_advance_loc1).D8(11)
- .D8(dwarf2reader::DW_CFA_undefined).ULEB128(3769)
- .FinishEntry();
-
- PERHAPS_WRITE_EH_FRAME_FILE("EHFrame.EmptyZ", section);
-
- EXPECT_CALL(handler, Entry(_, 0xda007738, 0xfb55c641, 1, "z", 228))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, ValOffsetRule(0xda007738, kCFARegister, 3629, 247))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, UndefinedRule(0xda007738 + 11 * 5955, 3769))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End())
- .InSequence(s).WillOnce(Return(true));
-
- ParseEHFrameSection(&section);
-}
-
-// Check that we recognize bad 'z' augmentation characters.
-TEST_F(EHFrame, BadZ) {
- Label cie;
- section
- .Mark(&cie)
- .CIEHeader(6937, 1045, 142, 1, "zQ")
- .ULEB128(0) // Augmentation data length
- .D8(dwarf2reader::DW_CFA_def_cfa).ULEB128(9006).ULEB128(7725)
- .FinishEntry()
- .FDEHeader(cie, 0x1293efa8, 0x236f53f2)
- .ULEB128(0) // Augmentation data length
- .D8(dwarf2reader::DW_CFA_advance_loc | 12)
- .D8(dwarf2reader::DW_CFA_register).ULEB128(5667).ULEB128(3462)
- .FinishEntry();
-
- PERHAPS_WRITE_EH_FRAME_FILE("EHFrame.BadZ", section);
-
- EXPECT_CALL(reporter, UnrecognizedAugmentation(_, "zQ"))
- .WillOnce(Return());
-
- ParseEHFrameSection(&section, false);
-}
-
-TEST_F(EHFrame, zL) {
- Label cie;
- DwarfPointerEncoding lsda_encoding =
- DwarfPointerEncoding(dwarf2reader::DW_EH_PE_funcrel
- | dwarf2reader::DW_EH_PE_udata2);
- section
- .Mark(&cie)
- .CIEHeader(9285, 9959, 54, 1, "zL")
- .ULEB128(1) // Augmentation data length
- .D8(lsda_encoding) // encoding for LSDA pointer in FDE
-
- .FinishEntry()
- .FDEHeader(cie, 0xd40091aa, 0x9aa6e746)
- .ULEB128(2) // Augmentation data length
- .EncodedPointer(0xd40099cd, lsda_encoding) // LSDA pointer
- .FinishEntry()
- .D32(0); // terminator
-
- PERHAPS_WRITE_EH_FRAME_FILE("EHFrame.zL", section);
-
- EXPECT_CALL(handler, Entry(_, 0xd40091aa, 0x9aa6e746, 1, "zL", 54))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, LanguageSpecificDataArea(0xd40099cd, false))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End())
- .InSequence(s).WillOnce(Return(true));
-
- ParseEHFrameSection(&section);
-}
-
-TEST_F(EHFrame, zP) {
- Label cie;
- DwarfPointerEncoding personality_encoding =
- DwarfPointerEncoding(dwarf2reader::DW_EH_PE_datarel
- | dwarf2reader::DW_EH_PE_udata2);
- section
- .Mark(&cie)
- .CIEHeader(1097, 6313, 17, 1, "zP")
- .ULEB128(3) // Augmentation data length
- .D8(personality_encoding) // encoding for personality routine
- .EncodedPointer(0xe3eaccac, personality_encoding) // value
- .FinishEntry()
- .FDEHeader(cie, 0x0c8350c9, 0xbef11087)
- .ULEB128(0) // Augmentation data length
- .FinishEntry()
- .D32(0); // terminator
-
- PERHAPS_WRITE_EH_FRAME_FILE("EHFrame.zP", section);
-
- EXPECT_CALL(handler, Entry(_, 0x0c8350c9, 0xbef11087, 1, "zP", 17))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, PersonalityRoutine(0xe3eaccac, false))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End())
- .InSequence(s).WillOnce(Return(true));
-
- ParseEHFrameSection(&section);
-}
-
-TEST_F(EHFrame, zR) {
- Label cie;
- DwarfPointerEncoding pointer_encoding =
- DwarfPointerEncoding(dwarf2reader::DW_EH_PE_textrel
- | dwarf2reader::DW_EH_PE_sdata2);
- section.SetPointerEncoding(pointer_encoding);
- section
- .Mark(&cie)
- .CIEHeader(8011, 5496, 75, 1, "zR")
- .ULEB128(1) // Augmentation data length
- .D8(pointer_encoding) // encoding for FDE addresses
- .FinishEntry()
- .FDEHeader(cie, 0x540f9431, 0xbd0)
- .ULEB128(0) // Augmentation data length
- .FinishEntry()
- .D32(0); // terminator
-
- PERHAPS_WRITE_EH_FRAME_FILE("EHFrame.zR", section);
-
- EXPECT_CALL(handler, Entry(_, 0x540f9431, 0xbd0, 1, "zR", 75))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End())
- .InSequence(s).WillOnce(Return(true));
-
- ParseEHFrameSection(&section);
-}
-
-TEST_F(EHFrame, zS) {
- Label cie;
- section
- .Mark(&cie)
- .CIEHeader(9217, 7694, 57, 1, "zS")
- .ULEB128(0) // Augmentation data length
- .FinishEntry()
- .FDEHeader(cie, 0xd40091aa, 0x9aa6e746)
- .ULEB128(0) // Augmentation data length
- .FinishEntry()
- .D32(0); // terminator
-
- PERHAPS_WRITE_EH_FRAME_FILE("EHFrame.zS", section);
-
- EXPECT_CALL(handler, Entry(_, 0xd40091aa, 0x9aa6e746, 1, "zS", 57))
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, SignalHandler())
- .InSequence(s).WillOnce(Return(true));
- EXPECT_CALL(handler, End())
- .InSequence(s).WillOnce(Return(true));
-
- ParseEHFrameSection(&section);
-}
-
-// These tests require manual inspection of the test output.
-struct CFIReporterFixture {
- CFIReporterFixture() : reporter("test file name", "test section name") { }
- CallFrameInfo::Reporter reporter;
-};
-
-class CFIReporter: public CFIReporterFixture, public Test { };
-
-TEST_F(CFIReporter, Incomplete) {
- reporter.Incomplete(0x0102030405060708ULL, CallFrameInfo::kUnknown);
-}
-
-TEST_F(CFIReporter, EarlyEHTerminator) {
- reporter.EarlyEHTerminator(0x0102030405060708ULL);
-}
-
-TEST_F(CFIReporter, CIEPointerOutOfRange) {
- reporter.CIEPointerOutOfRange(0x0123456789abcdefULL, 0xfedcba9876543210ULL);
-}
-
-TEST_F(CFIReporter, BadCIEId) {
- reporter.BadCIEId(0x0123456789abcdefULL, 0xfedcba9876543210ULL);
-}
-
-TEST_F(CFIReporter, UnrecognizedVersion) {
- reporter.UnrecognizedVersion(0x0123456789abcdefULL, 43);
-}
-
-TEST_F(CFIReporter, UnrecognizedAugmentation) {
- reporter.UnrecognizedAugmentation(0x0123456789abcdefULL, "poodles");
-}
-
-TEST_F(CFIReporter, InvalidPointerEncoding) {
- reporter.InvalidPointerEncoding(0x0123456789abcdefULL, 0x42);
-}
-
-TEST_F(CFIReporter, UnusablePointerEncoding) {
- reporter.UnusablePointerEncoding(0x0123456789abcdefULL, 0x42);
-}
-
-TEST_F(CFIReporter, RestoreInCIE) {
- reporter.RestoreInCIE(0x0123456789abcdefULL, 0xfedcba9876543210ULL);
-}
-
-TEST_F(CFIReporter, BadInstruction) {
- reporter.BadInstruction(0x0123456789abcdefULL, CallFrameInfo::kFDE,
- 0xfedcba9876543210ULL);
-}
-
-TEST_F(CFIReporter, NoCFARule) {
- reporter.NoCFARule(0x0123456789abcdefULL, CallFrameInfo::kCIE,
- 0xfedcba9876543210ULL);
-}
-
-TEST_F(CFIReporter, EmptyStateStack) {
- reporter.EmptyStateStack(0x0123456789abcdefULL, CallFrameInfo::kTerminator,
- 0xfedcba9876543210ULL);
-}
-
-TEST_F(CFIReporter, ClearingCFARule) {
- reporter.ClearingCFARule(0x0123456789abcdefULL, CallFrameInfo::kFDE,
- 0xfedcba9876543210ULL);
-}
-
-#ifdef WRITE_ELF
-// See comments at the top of the file mentioning WRITE_ELF for details.
-
-using google_breakpad::TestAssembler::Section;
-
-struct ELFSectionHeader {
- ELFSectionHeader(unsigned int set_type)
- : type(set_type), flags(0), address(0), link(0), info(0),
- alignment(1), entry_size(0) { }
- Label name;
- unsigned int type;
- u_int64_t flags;
- u_int64_t address;
- Label file_offset;
- Label file_size;
- unsigned int link;
- unsigned int info;
- u_int64_t alignment;
- u_int64_t entry_size;
-};
-
-void AppendSectionHeader(CFISection *table, const ELFSectionHeader &header) {
- (*table)
- .D32(header.name) // name, index in string tbl
- .D32(header.type) // type
- .Address(header.flags) // flags
- .Address(header.address) // address in memory
- .Address(header.file_offset) // offset in ELF file
- .Address(header.file_size) // length in bytes
- .D32(header.link) // link to related section
- .D32(header.info) // miscellaneous
- .Address(header.alignment) // alignment
- .Address(header.entry_size); // entry size
-}
-
-void WriteELFFrameSection(const char *filename, const char *cfi_name,
- const CFISection &cfi) {
- int elf_class = cfi.AddressSize() == 4 ? ELFCLASS32 : ELFCLASS64;
- int elf_data = (cfi.endianness() == kBigEndian
- ? ELFDATA2MSB : ELFDATA2LSB);
- CFISection elf(cfi.endianness(), cfi.AddressSize());
- Label elf_header_size, section_table_offset;
- elf
- .Append("\x7f" "ELF")
- .D8(elf_class) // 32-bit or 64-bit ELF
- .D8(elf_data) // endianness
- .D8(1) // ELF version
- .D8(ELFOSABI_LINUX) // Operating System/ABI indication
- .D8(0) // ABI version
- .Append(7, 0xda) // padding
- .D16(ET_EXEC) // file type: executable file
- .D16(EM_386) // architecture: Intel IA-32
- .D32(EV_CURRENT); // ELF version
- elf
- .Address(0x0123456789abcdefULL) // program entry point
- .Address(0) // program header offset
- .Address(section_table_offset) // section header offset
- .D32(0) // processor-specific flags
- .D16(elf_header_size) // ELF header size in bytes */
- .D16(elf_class == ELFCLASS32 ? 32 : 56) // program header entry size
- .D16(0) // program header table entry count
- .D16(elf_class == ELFCLASS32 ? 40 : 64) // section header entry size
- .D16(3) // section count
- .D16(1) // section name string table
- .Mark(&elf_header_size);
-
- // The null section. Every ELF file has one, as the first entry in
- // the section header table.
- ELFSectionHeader null_header(SHT_NULL);
- null_header.file_offset = 0;
- null_header.file_size = 0;
-
- // The CFI section. The whole reason for writing out this ELF file
- // is to put this in it so that we can run other dumping programs on
- // it to check its contents.
- ELFSectionHeader cfi_header(SHT_PROGBITS);
- cfi_header.file_size = cfi.Size();
-
- // The section holding the names of the sections. This is the
- // section whose index appears in the e_shstrndx member of the ELF
- // header.
- ELFSectionHeader section_names_header(SHT_STRTAB);
- CFISection section_names(cfi.endianness(), cfi.AddressSize());
- section_names
- .Mark(&null_header.name)
- .AppendCString("")
- .Mark(&section_names_header.name)
- .AppendCString(".shstrtab")
- .Mark(&cfi_header.name)
- .AppendCString(cfi_name)
- .Mark(&section_names_header.file_size);
-
- // Create the section table. The ELF header's e_shoff member refers
- // to this, and the e_shnum member gives the number of entries it
- // contains.
- CFISection section_table(cfi.endianness(), cfi.AddressSize());
- AppendSectionHeader(&section_table, null_header);
- AppendSectionHeader(&section_table, section_names_header);
- AppendSectionHeader(&section_table, cfi_header);
-
- // Append the section table and the section contents to the ELF file.
- elf
- .Mark(&section_table_offset)
- .Append(section_table)
- .Mark(&section_names_header.file_offset)
- .Append(section_names)
- .Mark(&cfi_header.file_offset)
- .Append(cfi);
-
- string contents;
- if (!elf.GetContents(&contents)) {
- fprintf(stderr, "failed to get ELF file contents\n");
- exit(1);
- }
-
- FILE *out = fopen(filename, "w");
- if (!out) {
- fprintf(stderr, "error opening ELF file '%s': %s\n",
- filename, strerror(errno));
- exit(1);
- }
-
- if (fwrite(contents.data(), 1, contents.size(), out) != contents.size()) {
- fprintf(stderr, "error writing ELF data to '%s': %s\n",
- filename, strerror(errno));
- exit(1);
- }
-
- if (fclose(out) == EOF) {
- fprintf(stderr, "error closing ELF file '%s': %s\n",
- filename, strerror(errno));
- exit(1);
- }
-}
-#endif
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