Re-commit the changes from r282565 that I had to back out because of
a linux bot test failure. That one is fixed; hopefully there won't be any others turned up this time. The eh_frame augmentation code wasn't working right after the reorg/rewrite of the classes. It works correctly now for the one test that was failing - but we'll see what the test bots come up with. <rdar://problem/28509178> llvm-svn: 282659
This commit is contained in:
Jason Molenda
parent
d72dd1fc4e
commit
74b8fbcba7
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@ -928,6 +928,8 @@
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|||
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||||
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||||
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||||
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|
||||
AFF87C8F150FF688000E1742 /* com.apple.debugserver.applist.plist in CopyFiles */ = {isa = PBXBuildFile; fileRef = AFF87C8E150FF688000E1742 /* com.apple.debugserver.applist.plist */; };
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||||
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@ -2946,6 +2951,8 @@
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AF3F54BF1B3BA5D500186E73 /* RegisterContextPOSIXProcessMonitor_powerpc.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = RegisterContextPOSIXProcessMonitor_powerpc.h; sourceTree = "<group>"; };
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||||
AF3F54C01B3BA5D500186E73 /* RegisterContextPOSIXProcessMonitor_x86.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = RegisterContextPOSIXProcessMonitor_x86.cpp; sourceTree = "<group>"; };
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AF3F54C11B3BA5D500186E73 /* RegisterContextPOSIXProcessMonitor_x86.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = RegisterContextPOSIXProcessMonitor_x86.h; sourceTree = "<group>"; };
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||||
AF415AE51D949E4400FCE0D4 /* x86AssemblyInspectionEngine.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = x86AssemblyInspectionEngine.cpp; sourceTree = "<group>"; };
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||||
AF415AE61D949E4400FCE0D4 /* x86AssemblyInspectionEngine.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = x86AssemblyInspectionEngine.h; sourceTree = "<group>"; };
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||||
AF45E1FC1BF57C8D000563EB /* PythonTestSuite.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = PythonTestSuite.cpp; sourceTree = "<group>"; };
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AF45E1FD1BF57C8D000563EB /* PythonTestSuite.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = PythonTestSuite.h; sourceTree = "<group>"; };
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||||
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@ -2992,8 +2999,11 @@
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||||
AFD65C7F1D9B5B2E00D93120 /* RegisterContextMinidump_x86_64.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = RegisterContextMinidump_x86_64.cpp; sourceTree = "<group>"; };
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||||
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||||
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@ -3227,6 +3237,7 @@
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2321F93F1BDD33D800BA9A93 /* ScriptInterpreter */,
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23CB15091D66CF2B00EDDDE1 /* Symbol */,
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AFEC5FD31D94F9130076A480 /* UnwindAssembly */,
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2321F9421BDD343A00BA9A93 /* Utility */,
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);
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path = unittests;
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@ -3527,6 +3538,8 @@
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23E2E5351D9048E7006F38BB /* minidump */ = {
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isa = PBXGroup;
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children = (
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AFD65C7F1D9B5B2E00D93120 /* RegisterContextMinidump_x86_64.cpp */,
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||||
AFD65C801D9B5B2E00D93120 /* RegisterContextMinidump_x86_64.h */,
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23E2E5361D9048FB006F38BB /* CMakeLists.txt */,
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23E2E5371D9048FB006F38BB /* MinidumpParser.cpp */,
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23E2E5381D9048FB006F38BB /* MinidumpParser.h */,
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@ -4405,6 +4418,8 @@
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2692BA17136611CD00F9E14D /* x86 */ = {
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children = (
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AF415AE51D949E4400FCE0D4 /* x86AssemblyInspectionEngine.cpp */,
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AF415AE61D949E4400FCE0D4 /* x86AssemblyInspectionEngine.h */,
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263E949D13661AE400E7D1CE /* UnwindAssembly-x86.cpp */,
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263E949E13661AE400E7D1CE /* UnwindAssembly-x86.h */,
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||||
);
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@ -6283,6 +6298,22 @@
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name = "SysV-ppc64";
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sourceTree = "<group>";
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||||
};
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AFEC5FD31D94F9130076A480 /* UnwindAssembly */ = {
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AFEC5FD51D94F9380076A480 /* Testx86AssemblyInspectionEngine.cpp */,
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||||
AFEC5FD41D94F9270076A480 /* x86 */,
|
||||
);
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name = UnwindAssembly;
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sourceTree = "<group>";
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||||
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||||
AFEC5FD41D94F9270076A480 /* x86 */ = {
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||||
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name = x86;
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sourceTree = "<group>";
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||||
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||||
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isa = PBXGroup;
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children = (
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@ -6400,7 +6431,9 @@
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4984BA181B979C08008658D4 /* ExpressionVariable.h in Headers */,
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26C7C4841BFFEA7E009BD01F /* WindowsMiniDump.h in Headers */,
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30B38A001CAAA6D7009524E3 /* ClangUtil.h in Headers */,
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||||
AFD65C821D9B5B2E00D93120 /* RegisterContextMinidump_x86_64.h in Headers */,
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238F2BA11D2C835A001FF92A /* StructuredDataPlugin.h in Headers */,
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AF415AE81D949E4400FCE0D4 /* x86AssemblyInspectionEngine.h in Headers */,
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||||
AF8AD62F1BEC28A400150209 /* PlatformAppleTVSimulator.h in Headers */,
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238F2BA91D2C85FA001FF92A /* StructuredDataDarwinLog.h in Headers */,
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AF8AD63A1BEC28C400150209 /* PlatformRemoteAppleWatch.h in Headers */,
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@ -6890,6 +6923,7 @@
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23CB153E1D66DA9300EDDDE1 /* PythonDataObjectsTests.cpp in Sources */,
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23CB153F1D66DA9300EDDDE1 /* SymbolsTest.cpp in Sources */,
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23E2E52B1D9037E6006F38BB /* ModuleCacheTest.cpp in Sources */,
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AFEC5FD81D94F9380076A480 /* Testx86AssemblyInspectionEngine.cpp in Sources */,
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23CB15401D66DA9300EDDDE1 /* TestClangASTContext.cpp in Sources */,
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23CB15411D66DA9300EDDDE1 /* StringExtractorTest.cpp in Sources */,
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23CB15421D66DA9300EDDDE1 /* TaskPoolTest.cpp in Sources */,
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@ -6989,6 +7023,7 @@
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26D1804216CEDF0700EDFB5B /* TimeSpecTimeout.cpp in Sources */,
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2689FFDA13353D9D00698AC0 /* lldb.cpp in Sources */,
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4C0083401B9F9BA900D5CF24 /* UtilityFunction.cpp in Sources */,
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AF415AE71D949E4400FCE0D4 /* x86AssemblyInspectionEngine.cpp in Sources */,
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26474CCD18D0CB5B0073DEBA /* RegisterContextPOSIX_x86.cpp in Sources */,
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AEB0E4591BD6E9F800B24093 /* LLVMUserExpression.cpp in Sources */,
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2689FFEF13353DB600698AC0 /* Breakpoint.cpp in Sources */,
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@ -7547,6 +7582,7 @@
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23D0658F1D4A7BEE0008EDE6 /* RenderScriptExpressionOpts.cpp in Sources */,
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945215DF17F639EE00521C0B /* ValueObjectPrinter.cpp in Sources */,
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26EFB61B1BFE8D3E00544801 /* PlatformNetBSD.cpp in Sources */,
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AFD65C811D9B5B2E00D93120 /* RegisterContextMinidump_x86_64.cpp in Sources */,
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260CC64815D0440D002BF2E0 /* OptionValueArgs.cpp in Sources */,
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260CC64915D0440D002BF2E0 /* OptionValueArray.cpp in Sources */,
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260CC64A15D0440D002BF2E0 /* OptionValueBoolean.cpp in Sources */,
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@ -1,3 +1,4 @@
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add_lldb_library(lldbPluginUnwindAssemblyX86
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UnwindAssembly-x86.cpp
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x86AssemblyInspectionEngine.cpp
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)
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File diff suppressed because it is too large
Load Diff
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@ -13,7 +13,7 @@
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// C Includes
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// C++ Includes
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// Other libraries and framework includes
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#include "llvm-c/Disassembler.h"
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#include "x86AssemblyInspectionEngine.h"
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// Project includes
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#include "lldb/Target/UnwindAssembly.h"
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@ -62,10 +62,11 @@ public:
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uint32_t GetPluginVersion() override;
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private:
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UnwindAssembly_x86(const lldb_private::ArchSpec &arch, int cpu);
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UnwindAssembly_x86(const lldb_private::ArchSpec &arch);
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int m_cpu;
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lldb_private::ArchSpec m_arch;
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lldb_private::x86AssemblyInspectionEngine *m_assembly_inspection_engine;
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};
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#endif // liblldb_UnwindAssembly_x86_h_
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File diff suppressed because it is too large
Load Diff
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@ -0,0 +1,178 @@
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//===-- x86AssemblyInspectionEngine.h ---------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef liblldb_x86AssemblyInspectionEngine_h_
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#define liblldb_x86AssemblyInspectionEngine_h_
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#include "llvm-c/Disassembler.h"
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#include "lldb/lldb-enumerations.h"
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#include "lldb/lldb-forward.h"
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#include "lldb/lldb-private.h"
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#include "lldb/Core/ArchSpec.h"
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#include "lldb/Core/ConstString.h"
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#include <map>
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#include <vector>
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namespace lldb_private {
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// x86AssemblyInspectionEngine - a class which will take a buffer of bytes
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// of i386/x86_64 instructions and create an UnwindPlan based on those
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// assembly instructions.
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class x86AssemblyInspectionEngine {
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public:
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/// default ctor
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x86AssemblyInspectionEngine(const lldb_private::ArchSpec &arch);
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/// default dtor
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~x86AssemblyInspectionEngine();
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/// One of the two initialize methods that can be called on this object;
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/// they must be called before any of the assembly inspection methods
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/// are called. This one should be used if the caller has access to a
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/// valid RegisterContext.
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void Initialize(lldb::RegisterContextSP ®_ctx);
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/// One of the two initialize methods that can be called on this object;
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/// they must be called before any of the assembly inspection methods
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/// are called. This one takes a vector of register name and lldb
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/// register numbers.
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struct lldb_reg_info {
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const char *name;
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uint32_t lldb_regnum;
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lldb_reg_info() : name(nullptr), lldb_regnum(LLDB_INVALID_REGNUM) {}
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};
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void Initialize(std::vector<lldb_reg_info> ®_info);
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/// Create an UnwindPlan for a "non-call site" stack frame situation.
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/// This is usually when this function/method is currently executing, and may
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/// be at
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/// a location where exception-handling style unwind information (eh_frame,
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/// compact unwind info, arm unwind info)
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/// are not valid.
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/// \p data is a pointer to the instructions for the function
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/// \p size is the size of the instruction buffer above
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/// \p func_range is the start Address and size of the function, to be
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/// included in the UnwindPlan
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/// \p unwind_plan is the unwind plan that this method creates
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/// \returns true if it was able to create an UnwindPlan; false if not.
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bool
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GetNonCallSiteUnwindPlanFromAssembly(uint8_t *data, size_t size,
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lldb_private::AddressRange &func_range,
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lldb_private::UnwindPlan &unwind_plan);
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/// Take an existing UnwindPlan, probably from eh_frame which may be missing
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/// description
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/// of the epilogue instructions, and add the epilogue description to it based
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/// on the
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/// instructions in the function.
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///
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/// The \p unwind_plan 's register numbers must be converted into the lldb
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/// register numbering
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/// scheme OR a RegisterContext must be provided in \p reg_ctx. If the \p
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/// unwind_plan
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/// register numbers are already in lldb register numbering, \p reg_ctx may be
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/// null.
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/// \returns true if the \p unwind_plan was updated, false if it was not.
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bool AugmentUnwindPlanFromCallSite(uint8_t *data, size_t size,
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lldb_private::AddressRange &func_range,
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lldb_private::UnwindPlan &unwind_plan,
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lldb::RegisterContextSP ®_ctx);
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bool FindFirstNonPrologueInstruction(uint8_t *data, size_t size,
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||||
size_t &offset);
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private:
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bool nonvolatile_reg_p(int machine_regno);
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bool push_rbp_pattern_p();
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bool push_0_pattern_p();
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bool push_imm_pattern_p();
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bool mov_rsp_rbp_pattern_p();
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bool sub_rsp_pattern_p(int &amount);
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bool add_rsp_pattern_p(int &amount);
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||||
bool lea_rsp_pattern_p(int &amount);
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bool push_reg_p(int ®no);
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bool pop_reg_p(int ®no);
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bool pop_rbp_pattern_p();
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bool leave_pattern_p();
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bool call_next_insn_pattern_p();
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bool mov_reg_to_local_stack_frame_p(int ®no, int &rbp_offset);
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bool ret_pattern_p();
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uint32_t extract_4(uint8_t *b);
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bool instruction_length(uint8_t *insn, int &length);
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|
||||
bool machine_regno_to_lldb_regno(int machine_regno, uint32_t &lldb_regno);
|
||||
|
||||
enum CPU { k_i386, k_x86_64, k_cpu_unspecified };
|
||||
|
||||
enum i386_register_numbers {
|
||||
k_machine_eax = 0,
|
||||
k_machine_ecx = 1,
|
||||
k_machine_edx = 2,
|
||||
k_machine_ebx = 3,
|
||||
k_machine_esp = 4,
|
||||
k_machine_ebp = 5,
|
||||
k_machine_esi = 6,
|
||||
k_machine_edi = 7,
|
||||
k_machine_eip = 8
|
||||
};
|
||||
|
||||
enum x86_64_register_numbers {
|
||||
k_machine_rax = 0,
|
||||
k_machine_rcx = 1,
|
||||
k_machine_rdx = 2,
|
||||
k_machine_rbx = 3,
|
||||
k_machine_rsp = 4,
|
||||
k_machine_rbp = 5,
|
||||
k_machine_rsi = 6,
|
||||
k_machine_rdi = 7,
|
||||
k_machine_r8 = 8,
|
||||
k_machine_r9 = 9,
|
||||
k_machine_r10 = 10,
|
||||
k_machine_r11 = 11,
|
||||
k_machine_r12 = 12,
|
||||
k_machine_r13 = 13,
|
||||
k_machine_r14 = 14,
|
||||
k_machine_r15 = 15,
|
||||
k_machine_rip = 16
|
||||
};
|
||||
|
||||
enum { kMaxInstructionByteSize = 32 };
|
||||
|
||||
uint8_t *m_cur_insn;
|
||||
|
||||
uint32_t m_machine_ip_regnum;
|
||||
uint32_t m_machine_sp_regnum;
|
||||
uint32_t m_machine_fp_regnum;
|
||||
uint32_t m_lldb_ip_regnum;
|
||||
uint32_t m_lldb_sp_regnum;
|
||||
uint32_t m_lldb_fp_regnum;
|
||||
|
||||
typedef std::map<uint32_t, lldb_reg_info> MachineRegnumToNameAndLLDBRegnum;
|
||||
|
||||
MachineRegnumToNameAndLLDBRegnum m_reg_map;
|
||||
|
||||
lldb_private::ArchSpec m_arch;
|
||||
CPU m_cpu;
|
||||
int m_wordsize;
|
||||
|
||||
bool m_register_map_initialized;
|
||||
|
||||
::LLVMDisasmContextRef m_disasm_context;
|
||||
|
||||
DISALLOW_COPY_AND_ASSIGN(x86AssemblyInspectionEngine);
|
||||
};
|
||||
|
||||
} // namespace lldb_private
|
||||
|
||||
#endif // liblldb_x86AssemblyInspectionEngine_h_
|
||||
|
|
@ -50,4 +50,5 @@ add_subdirectory(Process)
|
|||
add_subdirectory(ScriptInterpreter)
|
||||
add_subdirectory(Symbol)
|
||||
add_subdirectory(SymbolFile)
|
||||
add_subdirectory(UnwindAssembly)
|
||||
add_subdirectory(Utility)
|
||||
|
|
|
|||
|
|
@ -0,0 +1 @@
|
|||
add_subdirectory(x86)
|
||||
|
|
@ -0,0 +1,3 @@
|
|||
add_lldb_unittest(UnwindAssemblyx86Tests
|
||||
Testx86AssemblyInspectionEngine.cpp
|
||||
)
|
||||
|
|
@ -0,0 +1,281 @@
|
|||
//===-- Testx86AssemblyInspectionEngine.cpp ---------------------------*- C++
|
||||
//-*-===//
|
||||
|
||||
//
|
||||
// The LLVM Compiler Infrastructure
|
||||
//
|
||||
// This file is distributed under the University of Illinois Open Source
|
||||
// License. See LICENSE.TXT for details.
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#include "gtest/gtest.h"
|
||||
|
||||
#include <vector>
|
||||
|
||||
#include "Plugins/UnwindAssembly/x86/x86AssemblyInspectionEngine.h"
|
||||
#include "lldb/Core/Address.h"
|
||||
#include "lldb/Core/AddressRange.h"
|
||||
#include "lldb/Core/ArchSpec.h"
|
||||
#include "lldb/Symbol/UnwindPlan.h"
|
||||
|
||||
#include "llvm/Support/TargetSelect.h"
|
||||
|
||||
using namespace lldb;
|
||||
using namespace lldb_private;
|
||||
|
||||
class Testx86AssemblyInspectionEngine : public testing::Test {
|
||||
public:
|
||||
// static void SetUpTestCase() { }
|
||||
|
||||
// static void TearDownTestCase() { }
|
||||
|
||||
// virtual void SetUp() override { }
|
||||
|
||||
// virtual void TearDown() override { }
|
||||
|
||||
protected:
|
||||
};
|
||||
|
||||
// only defining the register names / numbers that the unwinder is actually
|
||||
// using today
|
||||
|
||||
// names should match the constants below. These will be the eRegisterKindLLDB
|
||||
// register numbers.
|
||||
|
||||
const char *x86_64_reg_names[] = {"rax", "rcx", "rdx", "rsp", "rbp", "rsi",
|
||||
"rdi", "r8", "r9", "r10", "r11", "r12",
|
||||
"r13", "r14", "r15", "rip"};
|
||||
|
||||
enum x86_64_regs {
|
||||
k_rax = 0,
|
||||
k_rcx = 1,
|
||||
k_rdx = 2,
|
||||
k_rsp = 3,
|
||||
k_rbp = 4,
|
||||
k_rsi = 5,
|
||||
k_rdi = 6,
|
||||
k_r8 = 7,
|
||||
k_r9 = 8,
|
||||
k_r10 = 9,
|
||||
k_r11 = 10,
|
||||
k_r12 = 11,
|
||||
k_r13 = 12,
|
||||
k_r14 = 13,
|
||||
k_r15 = 14,
|
||||
k_rip = 15
|
||||
};
|
||||
|
||||
// names should match the constants below. These will be the eRegisterKindLLDB
|
||||
// register numbers.
|
||||
|
||||
const char *i386_reg_names[] = {"eax", "ecx", "edx", "ebx", "esp",
|
||||
"ebp", "esi", "edi", "eip"};
|
||||
|
||||
enum i386_regs {
|
||||
k_eax = 0,
|
||||
k_ecx = 1,
|
||||
k_edx = 2,
|
||||
k_ebx = 3,
|
||||
k_esp = 4,
|
||||
k_ebp = 5,
|
||||
k_esi = 6,
|
||||
k_edi = 7,
|
||||
k_eip = 8
|
||||
};
|
||||
|
||||
std::unique_ptr<x86AssemblyInspectionEngine> Getx86_64Inspector() {
|
||||
|
||||
ArchSpec arch("x86_64-apple-macosx", nullptr);
|
||||
llvm::InitializeAllTargets();
|
||||
llvm::InitializeAllAsmPrinters();
|
||||
llvm::InitializeAllTargetMCs();
|
||||
llvm::InitializeAllDisassemblers();
|
||||
std::unique_ptr<x86AssemblyInspectionEngine> engine(
|
||||
new x86AssemblyInspectionEngine(arch));
|
||||
|
||||
std::vector<x86AssemblyInspectionEngine::lldb_reg_info> lldb_regnums;
|
||||
int i = 0;
|
||||
for (const auto &name : x86_64_reg_names) {
|
||||
x86AssemblyInspectionEngine::lldb_reg_info ri;
|
||||
ri.name = name;
|
||||
ri.lldb_regnum = i++;
|
||||
lldb_regnums.push_back(ri);
|
||||
}
|
||||
|
||||
engine->Initialize(lldb_regnums);
|
||||
return engine;
|
||||
}
|
||||
|
||||
std::unique_ptr<x86AssemblyInspectionEngine> Geti386Inspector() {
|
||||
|
||||
ArchSpec arch("i386-apple-macosx", nullptr);
|
||||
llvm::InitializeAllTargets();
|
||||
llvm::InitializeAllAsmPrinters();
|
||||
llvm::InitializeAllTargetMCs();
|
||||
llvm::InitializeAllDisassemblers();
|
||||
std::unique_ptr<x86AssemblyInspectionEngine> engine(
|
||||
new x86AssemblyInspectionEngine(arch));
|
||||
|
||||
std::vector<x86AssemblyInspectionEngine::lldb_reg_info> lldb_regnums;
|
||||
int i = 0;
|
||||
for (const auto &name : i386_reg_names) {
|
||||
x86AssemblyInspectionEngine::lldb_reg_info ri;
|
||||
ri.name = name;
|
||||
ri.lldb_regnum = i++;
|
||||
lldb_regnums.push_back(ri);
|
||||
}
|
||||
|
||||
engine->Initialize(lldb_regnums);
|
||||
return engine;
|
||||
}
|
||||
|
||||
TEST_F(Testx86AssemblyInspectionEngine, TestSimple64bitFrameFunction) {
|
||||
std::unique_ptr<x86AssemblyInspectionEngine> engine = Getx86_64Inspector();
|
||||
|
||||
uint8_t data[] = {
|
||||
0x55, // offset 0 -- pushq %rbp
|
||||
0x48, 0x89, 0xe5, // offset 1 -- movq %rsp, %rbp
|
||||
0x31, 0xc0, // offset 4 -- xorl %eax, %eax
|
||||
0x5d, // offset 6 -- popq %rbp
|
||||
0xc3 // offset 7 -- retq
|
||||
};
|
||||
|
||||
AddressRange sample_range(0x1000, sizeof(data));
|
||||
|
||||
UnwindPlan unwind_plan(eRegisterKindLLDB);
|
||||
EXPECT_TRUE(engine->GetNonCallSiteUnwindPlanFromAssembly(
|
||||
data, sizeof(data), sample_range, unwind_plan));
|
||||
|
||||
// Expect four unwind rows:
|
||||
// 0: CFA=rsp +8 => rsp=CFA+0 rip=[CFA-8]
|
||||
// 1: CFA=rsp+16 => rbp=[CFA-16] rsp=CFA+0 rip=[CFA-8]
|
||||
// 4: CFA=rbp+16 => rbp=[CFA-16] rsp=CFA+0 rip=[CFA-8]
|
||||
// 7: CFA=rsp +8 => rsp=CFA+0 rip=[CFA-8]
|
||||
|
||||
EXPECT_TRUE(unwind_plan.GetInitialCFARegister() == k_rsp);
|
||||
EXPECT_TRUE(unwind_plan.GetUnwindPlanValidAtAllInstructions() ==
|
||||
eLazyBoolYes);
|
||||
EXPECT_TRUE(unwind_plan.GetSourcedFromCompiler() == eLazyBoolNo);
|
||||
|
||||
UnwindPlan::Row::RegisterLocation regloc;
|
||||
|
||||
// 0: CFA=rsp +8 => rsp=CFA+0 rip=[CFA-8]
|
||||
UnwindPlan::RowSP row_sp = unwind_plan.GetRowForFunctionOffset(0);
|
||||
EXPECT_TRUE(row_sp->GetOffset() == 0);
|
||||
EXPECT_TRUE(row_sp->GetCFAValue().GetRegisterNumber() == k_rsp);
|
||||
EXPECT_TRUE(row_sp->GetCFAValue().IsRegisterPlusOffset() == true);
|
||||
EXPECT_TRUE(row_sp->GetCFAValue().GetOffset() == 8);
|
||||
|
||||
EXPECT_TRUE(row_sp->GetRegisterInfo(k_rip, regloc));
|
||||
EXPECT_TRUE(regloc.IsAtCFAPlusOffset());
|
||||
EXPECT_TRUE(regloc.GetOffset() == -8);
|
||||
|
||||
// 1: CFA=rsp+16 => rbp=[CFA-16] rsp=CFA+0 rip=[CFA-8]
|
||||
row_sp = unwind_plan.GetRowForFunctionOffset(1);
|
||||
EXPECT_TRUE(row_sp->GetOffset() == 1);
|
||||
EXPECT_TRUE(row_sp->GetCFAValue().GetRegisterNumber() == k_rsp);
|
||||
EXPECT_TRUE(row_sp->GetCFAValue().IsRegisterPlusOffset() == true);
|
||||
EXPECT_TRUE(row_sp->GetCFAValue().GetOffset() == 16);
|
||||
|
||||
EXPECT_TRUE(row_sp->GetRegisterInfo(k_rip, regloc));
|
||||
EXPECT_TRUE(regloc.IsAtCFAPlusOffset());
|
||||
EXPECT_TRUE(regloc.GetOffset() == -8);
|
||||
|
||||
// 4: CFA=rbp+16 => rbp=[CFA-16] rsp=CFA+0 rip=[CFA-8]
|
||||
row_sp = unwind_plan.GetRowForFunctionOffset(4);
|
||||
EXPECT_TRUE(row_sp->GetOffset() == 4);
|
||||
EXPECT_TRUE(row_sp->GetCFAValue().GetRegisterNumber() == k_rbp);
|
||||
EXPECT_TRUE(row_sp->GetCFAValue().IsRegisterPlusOffset() == true);
|
||||
EXPECT_TRUE(row_sp->GetCFAValue().GetOffset() == 16);
|
||||
|
||||
EXPECT_TRUE(row_sp->GetRegisterInfo(k_rip, regloc));
|
||||
EXPECT_TRUE(regloc.IsAtCFAPlusOffset());
|
||||
EXPECT_TRUE(regloc.GetOffset() == -8);
|
||||
|
||||
// 7: CFA=rsp +8 => rsp=CFA+0 rip=[CFA-8]
|
||||
row_sp = unwind_plan.GetRowForFunctionOffset(7);
|
||||
EXPECT_TRUE(row_sp->GetOffset() == 7);
|
||||
EXPECT_TRUE(row_sp->GetCFAValue().GetRegisterNumber() == k_rsp);
|
||||
EXPECT_TRUE(row_sp->GetCFAValue().IsRegisterPlusOffset() == true);
|
||||
EXPECT_TRUE(row_sp->GetCFAValue().GetOffset() == 8);
|
||||
|
||||
EXPECT_TRUE(row_sp->GetRegisterInfo(k_rip, regloc));
|
||||
EXPECT_TRUE(regloc.IsAtCFAPlusOffset());
|
||||
EXPECT_TRUE(regloc.GetOffset() == -8);
|
||||
}
|
||||
|
||||
TEST_F(Testx86AssemblyInspectionEngine, TestSimple32bitFrameFunction) {
|
||||
std::unique_ptr<x86AssemblyInspectionEngine> engine = Geti386Inspector();
|
||||
|
||||
uint8_t data[] = {
|
||||
0x55, // offset 0 -- pushl %ebp
|
||||
0x89, 0xe5, // offset 1 -- movl %esp, %ebp
|
||||
0x31, 0xc0, // offset 3 -- xorl %eax, %eax
|
||||
0x5d, // offset 5 -- popl %ebp
|
||||
0xc3 // offset 6 -- retl
|
||||
};
|
||||
|
||||
AddressRange sample_range(0x1000, sizeof(data));
|
||||
|
||||
UnwindPlan unwind_plan(eRegisterKindLLDB);
|
||||
EXPECT_TRUE(engine->GetNonCallSiteUnwindPlanFromAssembly(
|
||||
data, sizeof(data), sample_range, unwind_plan));
|
||||
|
||||
// Expect four unwind rows:
|
||||
// 0: CFA=esp +4 => esp=CFA+0 eip=[CFA-4]
|
||||
// 1: CFA=esp +8 => ebp=[CFA-8] esp=CFA+0 eip=[CFA-4]
|
||||
// 3: CFA=ebp +8 => ebp=[CFA-8] esp=CFA+0 eip=[CFA-4]
|
||||
// 6: CFA=esp +4 => esp=CFA+0 eip=[CFA-4]
|
||||
|
||||
EXPECT_TRUE(unwind_plan.GetInitialCFARegister() == k_esp);
|
||||
EXPECT_TRUE(unwind_plan.GetUnwindPlanValidAtAllInstructions() ==
|
||||
eLazyBoolYes);
|
||||
EXPECT_TRUE(unwind_plan.GetSourcedFromCompiler() == eLazyBoolNo);
|
||||
|
||||
UnwindPlan::Row::RegisterLocation regloc;
|
||||
|
||||
// offset 0 -- pushl %ebp
|
||||
UnwindPlan::RowSP row_sp = unwind_plan.GetRowForFunctionOffset(0);
|
||||
EXPECT_TRUE(row_sp->GetOffset() == 0);
|
||||
EXPECT_TRUE(row_sp->GetCFAValue().GetRegisterNumber() == k_esp);
|
||||
EXPECT_TRUE(row_sp->GetCFAValue().IsRegisterPlusOffset() == true);
|
||||
EXPECT_TRUE(row_sp->GetCFAValue().GetOffset() == 4);
|
||||
|
||||
EXPECT_TRUE(row_sp->GetRegisterInfo(k_eip, regloc));
|
||||
EXPECT_TRUE(regloc.IsAtCFAPlusOffset());
|
||||
EXPECT_TRUE(regloc.GetOffset() == -4);
|
||||
|
||||
// 1: CFA=esp +8 => ebp=[CFA-8] esp=CFA+0 eip=[CFA-4]
|
||||
row_sp = unwind_plan.GetRowForFunctionOffset(1);
|
||||
EXPECT_TRUE(row_sp->GetOffset() == 1);
|
||||
EXPECT_TRUE(row_sp->GetCFAValue().GetRegisterNumber() == k_esp);
|
||||
EXPECT_TRUE(row_sp->GetCFAValue().IsRegisterPlusOffset() == true);
|
||||
EXPECT_TRUE(row_sp->GetCFAValue().GetOffset() == 8);
|
||||
|
||||
EXPECT_TRUE(row_sp->GetRegisterInfo(k_eip, regloc));
|
||||
EXPECT_TRUE(regloc.IsAtCFAPlusOffset());
|
||||
EXPECT_TRUE(regloc.GetOffset() == -4);
|
||||
|
||||
// 3: CFA=ebp +8 => ebp=[CFA-8] esp=CFA+0 eip=[CFA-4]
|
||||
row_sp = unwind_plan.GetRowForFunctionOffset(3);
|
||||
EXPECT_TRUE(row_sp->GetOffset() == 3);
|
||||
EXPECT_TRUE(row_sp->GetCFAValue().GetRegisterNumber() == k_ebp);
|
||||
EXPECT_TRUE(row_sp->GetCFAValue().IsRegisterPlusOffset() == true);
|
||||
EXPECT_TRUE(row_sp->GetCFAValue().GetOffset() == 8);
|
||||
|
||||
EXPECT_TRUE(row_sp->GetRegisterInfo(k_eip, regloc));
|
||||
EXPECT_TRUE(regloc.IsAtCFAPlusOffset());
|
||||
EXPECT_TRUE(regloc.GetOffset() == -4);
|
||||
|
||||
// 6: CFA=esp +4 => esp=CFA+0 eip=[CFA-4]
|
||||
row_sp = unwind_plan.GetRowForFunctionOffset(6);
|
||||
EXPECT_TRUE(row_sp->GetOffset() == 6);
|
||||
EXPECT_TRUE(row_sp->GetCFAValue().GetRegisterNumber() == k_esp);
|
||||
EXPECT_TRUE(row_sp->GetCFAValue().IsRegisterPlusOffset() == true);
|
||||
EXPECT_TRUE(row_sp->GetCFAValue().GetOffset() == 4);
|
||||
|
||||
EXPECT_TRUE(row_sp->GetRegisterInfo(k_eip, regloc));
|
||||
EXPECT_TRUE(regloc.IsAtCFAPlusOffset());
|
||||
EXPECT_TRUE(regloc.GetOffset() == -4);
|
||||
}
|
||||
Loading…
Reference in New Issue