[Lldb-commits] [lldb] r285587 - Minidump plugin: Adding ProcessMinidump, ThreadMinidump and register the plugin in SystemInitializerFull
Chris Bieneman via lldb-commits
lldb-commits at lists.llvm.org
Mon Oct 31 16:07:01 PDT 2016
I think the new mini-dump test case added here might be flaky.
See: http://lab.llvm.org:8011/builders/lldb-x86_64-ubuntu-14.04-cmake/builds/381
The next build was successful.
-Chris
> On Oct 31, 2016, at 8:35 AM, Dimitar Vlahovski via lldb-commits <lldb-commits at lists.llvm.org> wrote:
>
> Author: dvlahovski
> Date: Mon Oct 31 10:35:18 2016
> New Revision: 285587
>
> URL: http://llvm.org/viewvc/llvm-project?rev=285587&view=rev
> Log:
> Minidump plugin: Adding ProcessMinidump, ThreadMinidump and register the plugin in SystemInitializerFull
>
> Summary:
> This plugin resembles the already existing Windows-only Minidump plugin.
> The WinMinidumpPlugin uses the Windows API for parsing Minidumps
> while this plugin is cross-platform because it includes a Minidump
> parser (which is already commited)
>
> It is able to produce a backtrace, to read the general puprose regiters,
> inspect local variables, show image list, do memory reads, etc.
>
> For now the only arches that this supports are x86_32 and x86_64.
> This is because I have only written register contexts for those.
> Others will come in next CLs.
>
> I copied the WinMinidump tests and adapted them a little bit for them to
> work with the new plugin (and they pass)
> I will add more tests, aiming for better code coverage.
>
> There is still functionality to be added, see TODOs in code.
>
> Reviewers: labath, zturner
>
> Subscribers: beanz, mgorny, modocache, lldb-commits, amccarth
>
> Differential Revision: https://reviews.llvm.org/D25905
>
> Added:
> lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/TestMiniDumpNew.py
> lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/install_breakpad.cpp
> lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/linux-x86_64 (with props)
> lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/linux-x86_64.cpp
> lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/linux-x86_64.dmp
> lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/linux-x86_64_not_crashed (with props)
> lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/linux-x86_64_not_crashed.cpp
> lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/linux-x86_64_not_crashed.dmp
> lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/makefile.txt
> lldb/trunk/source/Plugins/Process/minidump/NtStructures.h
> lldb/trunk/source/Plugins/Process/minidump/ProcessMinidump.cpp
> lldb/trunk/source/Plugins/Process/minidump/ProcessMinidump.h
> lldb/trunk/source/Plugins/Process/minidump/ThreadMinidump.cpp
> lldb/trunk/source/Plugins/Process/minidump/ThreadMinidump.h
> Modified:
> lldb/trunk/source/API/SystemInitializerFull.cpp
> lldb/trunk/source/Plugins/Process/minidump/CMakeLists.txt
> lldb/trunk/source/Plugins/Process/minidump/MinidumpParser.cpp
> lldb/trunk/source/Plugins/Process/minidump/MinidumpParser.h
> lldb/trunk/source/Plugins/Process/minidump/MinidumpTypes.h
> lldb/trunk/unittests/Process/minidump/MinidumpParserTest.cpp
>
> Added: lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/TestMiniDumpNew.py
> URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/TestMiniDumpNew.py?rev=285587&view=auto
> ==============================================================================
> --- lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/TestMiniDumpNew.py (added)
> +++ lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/TestMiniDumpNew.py Mon Oct 31 10:35:18 2016
> @@ -0,0 +1,100 @@
> +"""
> +Test basics of Minidump debugging.
> +"""
> +
> +from __future__ import print_function
> +from six import iteritems
> +
> +
> +import lldb
> +from lldbsuite.test.decorators import *
> +from lldbsuite.test.lldbtest import *
> +from lldbsuite.test import lldbutil
> +
> +
> +class MiniDumpNewTestCase(TestBase):
> +
> + mydir = TestBase.compute_mydir(__file__)
> +
> + NO_DEBUG_INFO_TESTCASE = True
> +
> + def test_process_info_in_minidump(self):
> + """Test that lldb can read the process information from the Minidump."""
> + # target create -c linux-x86_64.dmp
> + self.dbg.CreateTarget(None)
> + self.target = self.dbg.GetSelectedTarget()
> + self.process = self.target.LoadCore("linux-x86_64.dmp")
> + self.assertTrue(self.process, PROCESS_IS_VALID)
> + self.assertEqual(self.process.GetNumThreads(), 1)
> + self.assertEqual(self.process.GetProcessID(), 29917)
> +
> + def test_thread_info_in_minidump(self):
> + """Test that lldb can read the thread information from the Minidump."""
> + # target create -c linux-x86_64.dmp
> + self.dbg.CreateTarget(None)
> + self.target = self.dbg.GetSelectedTarget()
> + self.process = self.target.LoadCore("linux-x86_64.dmp")
> + # This process crashed due to a segmentation fault in its
> + # one and only thread.
> + self.assertEqual(self.process.GetNumThreads(), 1)
> + thread = self.process.GetThreadAtIndex(0)
> + self.assertEqual(thread.GetStopReason(), lldb.eStopReasonSignal)
> + stop_description = thread.GetStopDescription(256)
> + self.assertTrue("SIGSEGV" in stop_description)
> +
> + def test_stack_info_in_minidump(self):
> + """Test that we can see a trivial stack in a breakpad-generated Minidump."""
> + # target create linux-x86_64 -c linux-x86_64.dmp
> + self.dbg.CreateTarget("linux-x86_64")
> + self.target = self.dbg.GetSelectedTarget()
> + self.process = self.target.LoadCore("linux-x86_64.dmp")
> + self.assertEqual(self.process.GetNumThreads(), 1)
> + thread = self.process.GetThreadAtIndex(0)
> + # frame #0: linux-x86_64`crash()
> + # frame #1: linux-x86_64`_start
> + self.assertEqual(thread.GetNumFrames(), 2)
> + frame = thread.GetFrameAtIndex(0)
> + self.assertTrue(frame.IsValid())
> + pc = frame.GetPC()
> + eip = frame.FindRegister("pc")
> + self.assertTrue(eip.IsValid())
> + self.assertEqual(pc, eip.GetValueAsUnsigned())
> +
> + def test_snapshot_minidump(self):
> + """Test that if we load a snapshot minidump file (meaning the process did not crash) there is no stop reason."""
> + # target create -c linux-x86_64_not_crashed.dmp
> + self.dbg.CreateTarget(None)
> + self.target = self.dbg.GetSelectedTarget()
> + self.process = self.target.LoadCore("linux-x86_64_not_crashed.dmp")
> + self.assertEqual(self.process.GetNumThreads(), 1)
> + thread = self.process.GetThreadAtIndex(0)
> + self.assertEqual(thread.GetStopReason(), lldb.eStopReasonNone)
> + stop_description = thread.GetStopDescription(256)
> + self.assertEqual(stop_description, None)
> +
> + def test_deeper_stack_in_minidump(self):
> + """Test that we can examine a more interesting stack in a Minidump."""
> + # Launch with the Minidump, and inspect the stack.
> + # target create linux-x86_64_not_crashed -c linux-x86_64_not_crashed.dmp
> + target = self.dbg.CreateTarget("linux-x86_64_not_crashed")
> + process = target.LoadCore("linux-x86_64_not_crashed.dmp")
> + thread = process.GetThreadAtIndex(0)
> +
> + expected_stack = {1: 'bar', 2: 'foo', 3: '_start'}
> + self.assertGreaterEqual(thread.GetNumFrames(), len(expected_stack))
> + for index, name in iteritems(expected_stack):
> + frame = thread.GetFrameAtIndex(index)
> + self.assertTrue(frame.IsValid())
> + function_name = frame.GetFunctionName()
> + self.assertTrue(name in function_name)
> +
> + def test_local_variables_in_minidump(self):
> + """Test that we can examine local variables in a Minidump."""
> + # Launch with the Minidump, and inspect a local variable.
> + # target create linux-x86_64_not_crashed -c linux-x86_64_not_crashed.dmp
> + target = self.dbg.CreateTarget("linux-x86_64_not_crashed")
> + process = target.LoadCore("linux-x86_64_not_crashed.dmp")
> + thread = process.GetThreadAtIndex(0)
> + frame = thread.GetFrameAtIndex(1)
> + value = frame.EvaluateExpression('x')
> + self.assertEqual(value.GetValueAsSigned(), 3)
>
> Added: lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/install_breakpad.cpp
> URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/install_breakpad.cpp?rev=285587&view=auto
> ==============================================================================
> --- lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/install_breakpad.cpp (added)
> +++ lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/install_breakpad.cpp Mon Oct 31 10:35:18 2016
> @@ -0,0 +1,16 @@
> +#include "client/linux/handler/exception_handler.h"
> +
> +static bool dumpCallback(const google_breakpad::MinidumpDescriptor &descriptor,
> + void *context, bool succeeded) {
> + return succeeded;
> +}
> +
> +google_breakpad::ExceptionHandler *eh;
> +
> +void InstallBreakpad() {
> + google_breakpad::MinidumpDescriptor descriptor("/tmp");
> + eh = new google_breakpad::ExceptionHandler(descriptor, NULL, dumpCallback,
> + NULL, true, -1);
> +}
> +
> +void WriteMinidump() { eh->WriteMinidump(); }
>
> Added: lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/linux-x86_64
> URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/linux-x86_64?rev=285587&view=auto
> ==============================================================================
> Binary files lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/linux-x86_64 (added) and lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/linux-x86_64 Mon Oct 31 10:35:18 2016 differ
>
> Propchange: lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/linux-x86_64
> ------------------------------------------------------------------------------
> svn:executable = *
>
> Added: lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/linux-x86_64.cpp
> URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/linux-x86_64.cpp?rev=285587&view=auto
> ==============================================================================
> --- lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/linux-x86_64.cpp (added)
> +++ lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/linux-x86_64.cpp Mon Oct 31 10:35:18 2016
> @@ -0,0 +1,12 @@
> +void crash() {
> + volatile int *a = (int *)(nullptr);
> + *a = 1;
> +}
> +
> +extern "C" void _start();
> +void InstallBreakpad();
> +
> +void _start() {
> + InstallBreakpad();
> + crash();
> +}
>
> Added: lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/linux-x86_64.dmp
> URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/linux-x86_64.dmp?rev=285587&view=auto
> ==============================================================================
> Binary files lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/linux-x86_64.dmp (added) and lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/linux-x86_64.dmp Mon Oct 31 10:35:18 2016 differ
>
> Added: lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/linux-x86_64_not_crashed
> URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/linux-x86_64_not_crashed?rev=285587&view=auto
> ==============================================================================
> Binary files lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/linux-x86_64_not_crashed (added) and lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/linux-x86_64_not_crashed Mon Oct 31 10:35:18 2016 differ
>
> Propchange: lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/linux-x86_64_not_crashed
> ------------------------------------------------------------------------------
> svn:executable = *
>
> Added: lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/linux-x86_64_not_crashed.cpp
> URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/linux-x86_64_not_crashed.cpp?rev=285587&view=auto
> ==============================================================================
> --- lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/linux-x86_64_not_crashed.cpp (added)
> +++ lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/linux-x86_64_not_crashed.cpp Mon Oct 31 10:35:18 2016
> @@ -0,0 +1,22 @@
> +void InstallBreakpad();
> +void WriteMinidump();
> +
> +int global = 42;
> +
> +int bar(int x) {
> + WriteMinidump();
> + int y = 4 * x + global;
> + return y;
> +}
> +
> +int foo(int x) {
> + int y = 2 * bar(3 * x);
> + return y;
> +}
> +
> +extern "C" void _start();
> +
> +void _start() {
> + InstallBreakpad();
> + foo(1);
> +}
>
> Added: lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/linux-x86_64_not_crashed.dmp
> URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/linux-x86_64_not_crashed.dmp?rev=285587&view=auto
> ==============================================================================
> Binary files lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/linux-x86_64_not_crashed.dmp (added) and lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/linux-x86_64_not_crashed.dmp Mon Oct 31 10:35:18 2016 differ
>
> Added: lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/makefile.txt
> URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/makefile.txt?rev=285587&view=auto
> ==============================================================================
> --- lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/makefile.txt (added)
> +++ lldb/trunk/packages/Python/lldbsuite/test/functionalities/postmortem/minidump-new/makefile.txt Mon Oct 31 10:35:18 2016
> @@ -0,0 +1,29 @@
> +# This makefile aims to make the binaries as small as possible, for us not to
> +# upload huge binary blobs in the repo.
> +# The binary should have debug symbols because stack unwinding doesn't work
> +# correctly using the information in the Minidump only. Also we want to evaluate
> +# local variables, etc.
> +# Breakpad compiles as a static library, so statically linking againts it
> +# makes the binary huge.
> +# Dynamically linking to it does improve things, but we are still #include-ing
> +# breakpad headers (which is a lot of source code for which we generate debug
> +# symbols)
> +# So, install_breakpad.cpp does the #include-ing and defines a global function
> +# "InstallBreakpad" that does all the exception handler registration.
> +# We compile install_breakpad to object file and then link it, alongside the
> +# static libbreakpad, into a shared library.
> +# Then the binaries dynamically link to that lib.
> +# The other optimisation is not using the standard library (hence the _start
> +# instead of main). We only link dynamically to some standard libraries.
> +# This way we have a tiny binary (~8K) that has debug symbols and uses breakpad
> +# to generate a Minidump when the binary crashes/requests such.
> +#
> +CC=g++
> +FLAGS=-g --std=c++11
> +INCLUDE=-I$HOME/breakpad/src/src/
> +LINK=-L. -lbreakpad -lpthread -nostdlib -lc -lstdc++ -lgcc_s -fno-exceptions
> +all:
> + $(CC) $(FLAGS) -fPIC -c install_breakpad.cpp $(INCLUDE) -o install_breakpad.o
> + ld -shared install_breakpad.o libbreakpad_client.a -o libbreakpad.so
> + $(CC) $(FLAGS) -o linux-x86_64 linux-x86_64.cpp $(LINK)
> + $(CC) $(FLAGS) -o linux-x86_64_not_crashed linux-x86_64_not_crashed.cpp $(LINK)
>
> Modified: lldb/trunk/source/API/SystemInitializerFull.cpp
> URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/API/SystemInitializerFull.cpp?rev=285587&r1=285586&r2=285587&view=diff
> ==============================================================================
> --- lldb/trunk/source/API/SystemInitializerFull.cpp (original)
> +++ lldb/trunk/source/API/SystemInitializerFull.cpp Mon Oct 31 10:35:18 2016
> @@ -78,6 +78,7 @@
> #include "Plugins/Platform/gdb-server/PlatformRemoteGDBServer.h"
> #include "Plugins/Process/elf-core/ProcessElfCore.h"
> #include "Plugins/Process/gdb-remote/ProcessGDBRemote.h"
> +#include "Plugins/Process/minidump/ProcessMinidump.h"
> #include "Plugins/ScriptInterpreter/None/ScriptInterpreterNone.h"
> #include "Plugins/SymbolFile/DWARF/SymbolFileDWARF.h"
> #include "Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.h"
> @@ -304,6 +305,7 @@ void SystemInitializerFull::Initialize()
>
> JITLoaderGDB::Initialize();
> ProcessElfCore::Initialize();
> + minidump::ProcessMinidump::Initialize();
> #if defined(_MSC_VER)
> ProcessWinMiniDump::Initialize();
> #endif
> @@ -429,6 +431,7 @@ void SystemInitializerFull::Terminate()
>
> JITLoaderGDB::Terminate();
> ProcessElfCore::Terminate();
> + minidump::ProcessMinidump::Terminate();
> #if defined(_MSC_VER)
> ProcessWinMiniDump::Terminate();
> #endif
>
> Modified: lldb/trunk/source/Plugins/Process/minidump/CMakeLists.txt
> URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/Process/minidump/CMakeLists.txt?rev=285587&r1=285586&r2=285587&view=diff
> ==============================================================================
> --- lldb/trunk/source/Plugins/Process/minidump/CMakeLists.txt (original)
> +++ lldb/trunk/source/Plugins/Process/minidump/CMakeLists.txt Mon Oct 31 10:35:18 2016
> @@ -5,4 +5,6 @@ add_lldb_library(lldbPluginProcessMinidu
> MinidumpParser.cpp
> RegisterContextMinidump_x86_32.cpp
> RegisterContextMinidump_x86_64.cpp
> + ProcessMinidump.cpp
> + ThreadMinidump.cpp
> )
>
> Modified: lldb/trunk/source/Plugins/Process/minidump/MinidumpParser.cpp
> URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/Process/minidump/MinidumpParser.cpp?rev=285587&r1=285586&r2=285587&view=diff
> ==============================================================================
> --- lldb/trunk/source/Plugins/Process/minidump/MinidumpParser.cpp (original)
> +++ lldb/trunk/source/Plugins/Process/minidump/MinidumpParser.cpp Mon Oct 31 10:35:18 2016
> @@ -9,6 +9,8 @@
>
> // Project includes
> #include "MinidumpParser.h"
> +#include "NtStructures.h"
> +#include "RegisterContextMinidump_x86_32.h"
>
> // Other libraries and framework includes
> #include "lldb/Target/MemoryRegionInfo.h"
> @@ -106,11 +108,42 @@ llvm::ArrayRef<MinidumpThread> MinidumpP
> llvm::ArrayRef<uint8_t>
> MinidumpParser::GetThreadContext(const MinidumpThread &td) {
> if (td.thread_context.rva + td.thread_context.data_size > GetData().size())
> - return llvm::None;
> + return {};
>
> return GetData().slice(td.thread_context.rva, td.thread_context.data_size);
> }
>
> +llvm::ArrayRef<uint8_t>
> +MinidumpParser::GetThreadContextWow64(const MinidumpThread &td) {
> + // On Windows, a 32-bit process can run on a 64-bit machine under
> + // WOW64. If the minidump was captured with a 64-bit debugger, then
> + // the CONTEXT we just grabbed from the mini_dump_thread is the one
> + // for the 64-bit "native" process rather than the 32-bit "guest"
> + // process we care about. In this case, we can get the 32-bit CONTEXT
> + // from the TEB (Thread Environment Block) of the 64-bit process.
> + auto teb_mem = GetMemory(td.teb, sizeof(TEB64));
> + if (teb_mem.empty())
> + return {};
> +
> + const TEB64 *wow64teb;
> + Error error = consumeObject(teb_mem, wow64teb);
> + if (error.Fail())
> + return {};
> +
> + // Slot 1 of the thread-local storage in the 64-bit TEB points to a
> + // structure that includes the 32-bit CONTEXT (after a ULONG).
> + // See: https://msdn.microsoft.com/en-us/library/ms681670.aspx
> + auto context =
> + GetMemory(wow64teb->tls_slots[1] + 4, sizeof(MinidumpContext_x86_32));
> + if (context.size() < sizeof(MinidumpContext_x86_32))
> + return {};
> +
> + return context;
> + // NOTE: We don't currently use the TEB for anything else. If we
> + // need it in the future, the 32-bit TEB is located according to the address
> + // stored in the first slot of the 64-bit TEB (wow64teb.Reserved1[0]).
> +}
> +
> const MinidumpSystemInfo *MinidumpParser::GetSystemInfo() {
> llvm::ArrayRef<uint8_t> data = GetStream(MinidumpStreamType::SystemInfo);
>
> @@ -229,8 +262,7 @@ llvm::ArrayRef<MinidumpModule> MinidumpP
>
> std::vector<const MinidumpModule *> MinidumpParser::GetFilteredModuleList() {
> llvm::ArrayRef<MinidumpModule> modules = GetModuleList();
> - // mapping module_name to pair(load_address, pointer to module struct in
> - // memory)
> + // map module_name -> pair(load_address, pointer to module struct in memory)
> llvm::StringMap<std::pair<uint64_t, const MinidumpModule *>> lowest_addr;
>
> std::vector<const MinidumpModule *> filtered_modules;
>
> Modified: lldb/trunk/source/Plugins/Process/minidump/MinidumpParser.h
> URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/Process/minidump/MinidumpParser.h?rev=285587&r1=285586&r2=285587&view=diff
> ==============================================================================
> --- lldb/trunk/source/Plugins/Process/minidump/MinidumpParser.h (original)
> +++ lldb/trunk/source/Plugins/Process/minidump/MinidumpParser.h Mon Oct 31 10:35:18 2016
> @@ -59,6 +59,8 @@ public:
>
> llvm::ArrayRef<uint8_t> GetThreadContext(const MinidumpThread &td);
>
> + llvm::ArrayRef<uint8_t> GetThreadContextWow64(const MinidumpThread &td);
> +
> const MinidumpSystemInfo *GetSystemInfo();
>
> ArchSpec GetArchitecture();
>
> Modified: lldb/trunk/source/Plugins/Process/minidump/MinidumpTypes.h
> URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/Process/minidump/MinidumpTypes.h?rev=285587&r1=285586&r2=285587&view=diff
> ==============================================================================
> --- lldb/trunk/source/Plugins/Process/minidump/MinidumpTypes.h (original)
> +++ lldb/trunk/source/Plugins/Process/minidump/MinidumpTypes.h Mon Oct 31 10:35:18 2016
> @@ -439,7 +439,8 @@ static_assert(sizeof(MinidumpModule) ==
> // Exception stuff
> struct MinidumpException {
> enum {
> - MaxParams = 15,
> + ExceptonInfoMaxParams = 15,
> + DumpRequested = 0xFFFFFFFF,
> };
>
> llvm::support::ulittle32_t exception_code;
> @@ -448,7 +449,7 @@ struct MinidumpException {
> llvm::support::ulittle64_t exception_address;
> llvm::support::ulittle32_t number_parameters;
> llvm::support::ulittle32_t unused_alignment;
> - llvm::support::ulittle64_t exception_information[MaxParams];
> + llvm::support::ulittle64_t exception_information[ExceptonInfoMaxParams];
> };
> static_assert(sizeof(MinidumpException) == 152,
> "sizeof MinidumpException is not correct!");
>
> Added: lldb/trunk/source/Plugins/Process/minidump/NtStructures.h
> URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/Process/minidump/NtStructures.h?rev=285587&view=auto
> ==============================================================================
> --- lldb/trunk/source/Plugins/Process/minidump/NtStructures.h (added)
> +++ lldb/trunk/source/Plugins/Process/minidump/NtStructures.h Mon Oct 31 10:35:18 2016
> @@ -0,0 +1,37 @@
> +//===-- NtStructures.h ------------------------------------------*- C++ -*-===//
> +//
> +// The LLVM Compiler Infrastructure
> +//
> +// This file is distributed under the University of Illinois Open Source
> +// License. See LICENSE.TXT for details.
> +//
> +//===----------------------------------------------------------------------===//
> +
> +#ifndef liblldb_Plugins_Process_Minidump_NtStructures_h_
> +#define liblldb_Plugins_Process_Minidump_NtStructures_h_
> +
> +#include "llvm/Support/Endian.h"
> +
> +namespace lldb_private {
> +
> +namespace minidump {
> +
> +// This describes the layout of a TEB (Thread Environment Block) for a 64-bit
> +// process. It's adapted from the 32-bit TEB in winternl.h. Currently, we care
> +// only about the position of the tls_slots.
> +struct TEB64 {
> + llvm::support::ulittle64_t reserved1[12];
> + llvm::support::ulittle64_t process_environment_block;
> + llvm::support::ulittle64_t reserved2[399];
> + uint8_t reserved3[1952];
> + llvm::support::ulittle64_t tls_slots[64];
> + uint8_t reserved4[8];
> + llvm::support::ulittle64_t reserved5[26];
> + llvm::support::ulittle64_t reserved_for_ole; // Windows 2000 only
> + llvm::support::ulittle64_t reserved6[4];
> + llvm::support::ulittle64_t tls_expansion_slots;
> +};
> +
> +#endif // liblldb_Plugins_Process_Minidump_NtStructures_h_
> +} // namespace minidump
> +} // namespace lldb_private
>
> Added: lldb/trunk/source/Plugins/Process/minidump/ProcessMinidump.cpp
> URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/Process/minidump/ProcessMinidump.cpp?rev=285587&view=auto
> ==============================================================================
> --- lldb/trunk/source/Plugins/Process/minidump/ProcessMinidump.cpp (added)
> +++ lldb/trunk/source/Plugins/Process/minidump/ProcessMinidump.cpp Mon Oct 31 10:35:18 2016
> @@ -0,0 +1,293 @@
> +//===-- ProcessMinidump.cpp -------------------------------------*- C++ -*-===//
> +//
> +// The LLVM Compiler Infrastructure
> +//
> +// This file is distributed under the University of Illinois Open Source
> +// License. See LICENSE.TXT for details.
> +//
> +//===----------------------------------------------------------------------===//
> +
> +// Project includes
> +#include "ProcessMinidump.h"
> +#include "ThreadMinidump.h"
> +
> +// Other libraries and framework includes
> +#include "lldb/Core/DataBufferHeap.h"
> +#include "lldb/Core/Log.h"
> +#include "lldb/Core/Module.h"
> +#include "lldb/Core/ModuleSpec.h"
> +#include "lldb/Core/PluginManager.h"
> +#include "lldb/Core/Section.h"
> +#include "lldb/Core/State.h"
> +#include "lldb/Target/DynamicLoader.h"
> +#include "lldb/Target/MemoryRegionInfo.h"
> +#include "lldb/Target/Target.h"
> +#include "lldb/Target/UnixSignals.h"
> +#include "lldb/Utility/LLDBAssert.h"
> +
> +// C includes
> +// C++ includes
> +
> +using namespace lldb_private;
> +using namespace minidump;
> +
> +ConstString ProcessMinidump::GetPluginNameStatic() {
> + static ConstString g_name("minidump");
> + return g_name;
> +}
> +
> +const char *ProcessMinidump::GetPluginDescriptionStatic() {
> + return "Minidump plug-in.";
> +}
> +
> +lldb::ProcessSP ProcessMinidump::CreateInstance(lldb::TargetSP target_sp,
> + lldb::ListenerSP listener_sp,
> + const FileSpec *crash_file) {
> + if (!crash_file)
> + return nullptr;
> +
> + lldb::ProcessSP process_sp;
> + // Read enough data for the Minidump header
> + const size_t header_size = sizeof(MinidumpHeader);
> + lldb::DataBufferSP data_sp(crash_file->MemoryMapFileContents(0, header_size));
> + if (!data_sp)
> + return nullptr;
> +
> + // first, only try to parse the header, beacuse we need to be fast
> + llvm::ArrayRef<uint8_t> header_data(data_sp->GetBytes(), header_size);
> + const MinidumpHeader *header = MinidumpHeader::Parse(header_data);
> +
> + if (data_sp->GetByteSize() != header_size || header == nullptr)
> + return nullptr;
> +
> + lldb::DataBufferSP all_data_sp(crash_file->MemoryMapFileContents());
> + auto minidump_parser = MinidumpParser::Create(all_data_sp);
> + // check if the parser object is valid
> + // skip if the Minidump file is Windows generated, because we are still
> + // work-in-progress
> + if (!minidump_parser ||
> + minidump_parser->GetArchitecture().GetTriple().getOS() ==
> + llvm::Triple::OSType::Win32)
> + return nullptr;
> +
> + return std::make_shared<ProcessMinidump>(target_sp, listener_sp, *crash_file,
> + minidump_parser.getValue());
> +}
> +
> +bool ProcessMinidump::CanDebug(lldb::TargetSP target_sp,
> + bool plugin_specified_by_name) {
> + return true;
> +}
> +
> +ProcessMinidump::ProcessMinidump(lldb::TargetSP target_sp,
> + lldb::ListenerSP listener_sp,
> + const FileSpec &core_file,
> + MinidumpParser minidump_parser)
> + : Process(target_sp, listener_sp), m_minidump_parser(minidump_parser),
> + m_core_file(core_file), m_is_wow64(false) {}
> +
> +ProcessMinidump::~ProcessMinidump() {
> + Clear();
> + // We need to call finalize on the process before destroying ourselves
> + // to make sure all of the broadcaster cleanup goes as planned. If we
> + // destruct this class, then Process::~Process() might have problems
> + // trying to fully destroy the broadcaster.
> + Finalize();
> +}
> +
> +void ProcessMinidump::Initialize() {
> + static std::once_flag g_once_flag;
> +
> + std::call_once(g_once_flag, []() {
> + PluginManager::RegisterPlugin(GetPluginNameStatic(),
> + GetPluginDescriptionStatic(),
> + ProcessMinidump::CreateInstance);
> + });
> +}
> +
> +void ProcessMinidump::Terminate() {
> + PluginManager::UnregisterPlugin(ProcessMinidump::CreateInstance);
> +}
> +
> +Error ProcessMinidump::DoLoadCore() {
> + Error error;
> +
> + m_thread_list = m_minidump_parser.GetThreads();
> + m_active_exception = m_minidump_parser.GetExceptionStream();
> + ReadModuleList();
> + GetTarget().SetArchitecture(GetArchitecture());
> +
> + llvm::Optional<lldb::pid_t> pid = m_minidump_parser.GetPid();
> + if (!pid) {
> + error.SetErrorString("failed to parse PID");
> + return error;
> + }
> + SetID(pid.getValue());
> +
> + return error;
> +}
> +
> +DynamicLoader *ProcessMinidump::GetDynamicLoader() {
> + if (m_dyld_ap.get() == nullptr)
> + m_dyld_ap.reset(DynamicLoader::FindPlugin(this, nullptr));
> + return m_dyld_ap.get();
> +}
> +
> +ConstString ProcessMinidump::GetPluginName() { return GetPluginNameStatic(); }
> +
> +uint32_t ProcessMinidump::GetPluginVersion() { return 1; }
> +
> +Error ProcessMinidump::DoDestroy() { return Error(); }
> +
> +void ProcessMinidump::RefreshStateAfterStop() {
> + if (!m_active_exception)
> + return;
> +
> + if (m_active_exception->exception_record.exception_code ==
> + MinidumpException::DumpRequested) {
> + return;
> + }
> +
> + lldb::StopInfoSP stop_info;
> + lldb::ThreadSP stop_thread;
> +
> + Process::m_thread_list.SetSelectedThreadByID(m_active_exception->thread_id);
> + stop_thread = Process::m_thread_list.GetSelectedThread();
> + ArchSpec arch = GetArchitecture();
> +
> + if (arch.GetTriple().getOS() == llvm::Triple::Linux) {
> + stop_info = StopInfo::CreateStopReasonWithSignal(
> + *stop_thread, m_active_exception->exception_record.exception_code);
> + } else {
> + std::string desc;
> + llvm::raw_string_ostream desc_stream(desc);
> + desc_stream << "Exception "
> + << llvm::format_hex(
> + m_active_exception->exception_record.exception_code, 8)
> + << " encountered at address "
> + << llvm::format_hex(
> + m_active_exception->exception_record.exception_address,
> + 8);
> + stop_info = StopInfo::CreateStopReasonWithException(
> + *stop_thread, desc_stream.str().c_str());
> + }
> +
> + stop_thread->SetStopInfo(stop_info);
> +}
> +
> +bool ProcessMinidump::IsAlive() { return true; }
> +
> +bool ProcessMinidump::WarnBeforeDetach() const { return false; }
> +
> +size_t ProcessMinidump::ReadMemory(lldb::addr_t addr, void *buf, size_t size,
> + lldb_private::Error &error) {
> + // Don't allow the caching that lldb_private::Process::ReadMemory does
> + // since we have it all cached in our dump file anyway.
> + return DoReadMemory(addr, buf, size, error);
> +}
> +
> +size_t ProcessMinidump::DoReadMemory(lldb::addr_t addr, void *buf, size_t size,
> + lldb_private::Error &error) {
> +
> + llvm::ArrayRef<uint8_t> mem = m_minidump_parser.GetMemory(addr, size);
> + if (mem.empty()) {
> + error.SetErrorString("could not parse memory info");
> + return 0;
> + }
> +
> + std::memcpy(buf, mem.data(), mem.size());
> + return mem.size();
> +}
> +
> +ArchSpec ProcessMinidump::GetArchitecture() {
> + if (!m_is_wow64) {
> + return m_minidump_parser.GetArchitecture();
> + }
> +
> + llvm::Triple triple;
> + triple.setVendor(llvm::Triple::VendorType::UnknownVendor);
> + triple.setArch(llvm::Triple::ArchType::x86);
> + triple.setOS(llvm::Triple::OSType::Win32);
> + return ArchSpec(triple);
> +}
> +
> +Error ProcessMinidump::GetMemoryRegionInfo(
> + lldb::addr_t load_addr, lldb_private::MemoryRegionInfo &range_info) {
> + Error error;
> + auto info = m_minidump_parser.GetMemoryRegionInfo(load_addr);
> + if (!info) {
> + error.SetErrorString("No valid MemoryRegionInfo found!");
> + return error;
> + }
> + range_info = info.getValue();
> + return error;
> +}
> +
> +void ProcessMinidump::Clear() { Process::m_thread_list.Clear(); }
> +
> +bool ProcessMinidump::UpdateThreadList(
> + lldb_private::ThreadList &old_thread_list,
> + lldb_private::ThreadList &new_thread_list) {
> + uint32_t num_threads = 0;
> + if (m_thread_list.size() > 0)
> + num_threads = m_thread_list.size();
> +
> + for (lldb::tid_t tid = 0; tid < num_threads; ++tid) {
> + llvm::ArrayRef<uint8_t> context;
> + if (!m_is_wow64)
> + context = m_minidump_parser.GetThreadContext(m_thread_list[tid]);
> + else
> + context = m_minidump_parser.GetThreadContextWow64(m_thread_list[tid]);
> +
> + lldb::ThreadSP thread_sp(
> + new ThreadMinidump(*this, m_thread_list[tid], context));
> + new_thread_list.AddThread(thread_sp);
> + }
> + return new_thread_list.GetSize(false) > 0;
> +}
> +
> +void ProcessMinidump::ReadModuleList() {
> + std::vector<const MinidumpModule *> filtered_modules =
> + m_minidump_parser.GetFilteredModuleList();
> +
> + for (auto module : filtered_modules) {
> + llvm::Optional<std::string> name =
> + m_minidump_parser.GetMinidumpString(module->module_name_rva);
> +
> + if (!name)
> + continue;
> +
> + Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_MODULES));
> + if (log) {
> + log->Printf(
> + "ProcessMinidump::%s found module: name: %s %#010lx-%#010lx size: %u",
> + __FUNCTION__, name.getValue().c_str(),
> + uint64_t(module->base_of_image),
> + module->base_of_image + module->size_of_image,
> + uint32_t(module->size_of_image));
> + }
> +
> + // check if the process is wow64 - a 32 bit windows process running on a
> + // 64 bit windows
> + if (llvm::StringRef(name.getValue()).endswith_lower("wow64.dll")) {
> + m_is_wow64 = true;
> + }
> +
> + const auto file_spec = FileSpec(name.getValue(), true);
> + ModuleSpec module_spec = file_spec;
> + Error error;
> + lldb::ModuleSP module_sp = GetTarget().GetSharedModule(module_spec, &error);
> + if (!module_sp || error.Fail()) {
> + continue;
> + }
> +
> + if (log) {
> + log->Printf("ProcessMinidump::%s load module: name: %s", __FUNCTION__,
> + name.getValue().c_str());
> + }
> +
> + bool load_addr_changed = false;
> + module_sp->SetLoadAddress(GetTarget(), module->base_of_image, false,
> + load_addr_changed);
> + }
> +}
>
> Added: lldb/trunk/source/Plugins/Process/minidump/ProcessMinidump.h
> URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/Process/minidump/ProcessMinidump.h?rev=285587&view=auto
> ==============================================================================
> --- lldb/trunk/source/Plugins/Process/minidump/ProcessMinidump.h (added)
> +++ lldb/trunk/source/Plugins/Process/minidump/ProcessMinidump.h Mon Oct 31 10:35:18 2016
> @@ -0,0 +1,104 @@
> +//===-- ProcessMinidump.h ---------------------------------------*- C++ -*-===//
> +//
> +// The LLVM Compiler Infrastructure
> +//
> +// This file is distributed under the University of Illinois Open Source
> +// License. See LICENSE.TXT for details.
> +//
> +//===----------------------------------------------------------------------===//
> +
> +#ifndef liblldb_ProcessMinidump_h_
> +#define liblldb_ProcessMinidump_h_
> +
> +// Project includes
> +#include "MinidumpParser.h"
> +#include "MinidumpTypes.h"
> +
> +// Other libraries and framework includes
> +#include "lldb/Core/ConstString.h"
> +#include "lldb/Core/Error.h"
> +#include "lldb/Target/Process.h"
> +#include "lldb/Target/StopInfo.h"
> +#include "lldb/Target/Target.h"
> +
> +#include "llvm/Support/Format.h"
> +#include "llvm/Support/raw_ostream.h"
> +
> +// C Includes
> +// C++ Includes
> +
> +namespace lldb_private {
> +
> +namespace minidump {
> +
> +class ProcessMinidump : public Process {
> +public:
> + static lldb::ProcessSP CreateInstance(lldb::TargetSP target_sp,
> + lldb::ListenerSP listener_sp,
> + const FileSpec *crash_file_path);
> +
> + static void Initialize();
> +
> + static void Terminate();
> +
> + static ConstString GetPluginNameStatic();
> +
> + static const char *GetPluginDescriptionStatic();
> +
> + ProcessMinidump(lldb::TargetSP target_sp, lldb::ListenerSP listener_sp,
> + const lldb_private::FileSpec &core_file,
> + MinidumpParser minidump_parser);
> +
> + ~ProcessMinidump() override;
> +
> + bool CanDebug(lldb::TargetSP target_sp,
> + bool plugin_specified_by_name) override;
> +
> + Error DoLoadCore() override;
> +
> + DynamicLoader *GetDynamicLoader() override;
> +
> + ConstString GetPluginName() override;
> +
> + uint32_t GetPluginVersion() override;
> +
> + Error DoDestroy() override;
> +
> + void RefreshStateAfterStop() override;
> +
> + bool IsAlive() override;
> +
> + bool WarnBeforeDetach() const override;
> +
> + size_t ReadMemory(lldb::addr_t addr, void *buf, size_t size,
> + Error &error) override;
> +
> + size_t DoReadMemory(lldb::addr_t addr, void *buf, size_t size,
> + Error &error) override;
> +
> + ArchSpec GetArchitecture();
> +
> + Error GetMemoryRegionInfo(lldb::addr_t load_addr,
> + MemoryRegionInfo &range_info) override;
> +
> + MinidumpParser m_minidump_parser;
> +
> +protected:
> + void Clear();
> +
> + bool UpdateThreadList(ThreadList &old_thread_list,
> + ThreadList &new_thread_list) override;
> +
> + void ReadModuleList();
> +
> +private:
> + FileSpec m_core_file;
> + llvm::ArrayRef<MinidumpThread> m_thread_list;
> + const MinidumpExceptionStream *m_active_exception;
> + bool m_is_wow64;
> +};
> +
> +} // namespace minidump
> +} // namespace lldb_private
> +
> +#endif // liblldb_ProcessMinidump_h_
>
> Added: lldb/trunk/source/Plugins/Process/minidump/ThreadMinidump.cpp
> URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/Process/minidump/ThreadMinidump.cpp?rev=285587&view=auto
> ==============================================================================
> --- lldb/trunk/source/Plugins/Process/minidump/ThreadMinidump.cpp (added)
> +++ lldb/trunk/source/Plugins/Process/minidump/ThreadMinidump.cpp Mon Oct 31 10:35:18 2016
> @@ -0,0 +1,114 @@
> +//===-- ThreadMinidump.cpp --------------------------------------*- C++ -*-===//
> +//
> +// The LLVM Compiler Infrastructure
> +//
> +// This file is distributed under the University of Illinois Open Source
> +// License. See LICENSE.TXT for details.
> +//
> +//===----------------------------------------------------------------------===//
> +
> +// Project includes
> +#include "ThreadMinidump.h"
> +#include "ProcessMinidump.h"
> +
> +#include "RegisterContextMinidump_x86_32.h"
> +#include "RegisterContextMinidump_x86_64.h"
> +
> +// Other libraries and framework includes
> +#include "Plugins/Process/Utility/RegisterContextLinux_i386.h"
> +#include "Plugins/Process/Utility/RegisterContextLinux_x86_64.h"
> +
> +#include "Plugins/Process/elf-core/RegisterContextPOSIXCore_x86_64.h"
> +
> +#include "lldb/Core/DataExtractor.h"
> +#include "lldb/Core/Log.h"
> +#include "lldb/Target/RegisterContext.h"
> +#include "lldb/Target/StopInfo.h"
> +#include "lldb/Target/Target.h"
> +#include "lldb/Target/Unwind.h"
> +
> +// C Includes
> +// C++ Includes
> +
> +using namespace lldb;
> +using namespace lldb_private;
> +using namespace minidump;
> +
> +ThreadMinidump::ThreadMinidump(Process &process, const MinidumpThread &td,
> + llvm::ArrayRef<uint8_t> gpregset_data)
> + : Thread(process, td.thread_id), m_thread_reg_ctx_sp(),
> + m_gpregset_data(gpregset_data) {}
> +
> +ThreadMinidump::~ThreadMinidump() {}
> +
> +void ThreadMinidump::RefreshStateAfterStop() {}
> +
> +void ThreadMinidump::ClearStackFrames() {}
> +
> +RegisterContextSP ThreadMinidump::GetRegisterContext() {
> + if (!m_reg_context_sp) {
> + m_reg_context_sp = CreateRegisterContextForFrame(nullptr);
> + }
> + return m_reg_context_sp;
> +}
> +
> +RegisterContextSP
> +ThreadMinidump::CreateRegisterContextForFrame(StackFrame *frame) {
> + RegisterContextSP reg_ctx_sp;
> + uint32_t concrete_frame_idx = 0;
> + Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_THREAD));
> +
> + if (frame)
> + concrete_frame_idx = frame->GetConcreteFrameIndex();
> +
> + if (concrete_frame_idx == 0) {
> + if (m_thread_reg_ctx_sp)
> + return m_thread_reg_ctx_sp;
> +
> + ProcessMinidump *process =
> + static_cast<ProcessMinidump *>(GetProcess().get());
> + ArchSpec arch = process->GetArchitecture();
> + RegisterInfoInterface *reg_interface = nullptr;
> +
> + // TODO write other register contexts and add them here
> + switch (arch.GetMachine()) {
> + case llvm::Triple::x86: {
> + reg_interface = new RegisterContextLinux_i386(arch);
> + lldb::DataBufferSP buf =
> + ConvertMinidumpContext_x86_32(m_gpregset_data, reg_interface);
> + DataExtractor gpregs(buf, lldb::eByteOrderLittle, 4);
> + DataExtractor fpregs;
> + m_thread_reg_ctx_sp.reset(new RegisterContextCorePOSIX_x86_64(
> + *this, reg_interface, gpregs, fpregs));
> + break;
> + }
> + case llvm::Triple::x86_64: {
> + reg_interface = new RegisterContextLinux_x86_64(arch);
> + lldb::DataBufferSP buf =
> + ConvertMinidumpContext_x86_64(m_gpregset_data, reg_interface);
> + DataExtractor gpregs(buf, lldb::eByteOrderLittle, 8);
> + DataExtractor fpregs;
> + m_thread_reg_ctx_sp.reset(new RegisterContextCorePOSIX_x86_64(
> + *this, reg_interface, gpregs, fpregs));
> + break;
> + }
> + default:
> + break;
> + }
> +
> + if (!reg_interface) {
> + if (log)
> + log->Printf("elf-core::%s:: Architecture(%d) not supported",
> + __FUNCTION__, arch.GetMachine());
> + assert(false && "Architecture not supported");
> + }
> +
> + reg_ctx_sp = m_thread_reg_ctx_sp;
> + } else if (m_unwinder_ap) {
> + reg_ctx_sp = m_unwinder_ap->CreateRegisterContextForFrame(frame);
> + }
> +
> + return reg_ctx_sp;
> +}
> +
> +bool ThreadMinidump::CalculateStopInfo() { return false; }
>
> Added: lldb/trunk/source/Plugins/Process/minidump/ThreadMinidump.h
> URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/Process/minidump/ThreadMinidump.h?rev=285587&view=auto
> ==============================================================================
> --- lldb/trunk/source/Plugins/Process/minidump/ThreadMinidump.h (added)
> +++ lldb/trunk/source/Plugins/Process/minidump/ThreadMinidump.h Mon Oct 31 10:35:18 2016
> @@ -0,0 +1,52 @@
> +//===-- ThreadMinidump.h ---------------------------------------*- C++ -*-===//
> +//
> +// The LLVM Compiler Infrastructure
> +//
> +// This file is distributed under the University of Illinois Open Source
> +// License. See LICENSE.TXT for details.
> +//
> +//===----------------------------------------------------------------------===//
> +
> +#ifndef liblldb_ThreadMinidump_h_
> +#define liblldb_ThreadMinidump_h_
> +
> +// Project includes
> +#include "MinidumpTypes.h"
> +
> +// Other libraries and framework includes
> +#include "lldb/Target/Thread.h"
> +
> +// C Includes
> +// C++ Includes
> +
> +namespace lldb_private {
> +
> +namespace minidump {
> +
> +class ThreadMinidump : public Thread {
> +public:
> + ThreadMinidump(Process &process, const MinidumpThread &td,
> + llvm::ArrayRef<uint8_t> gpregset_data);
> +
> + ~ThreadMinidump() override;
> +
> + void RefreshStateAfterStop() override;
> +
> + lldb::RegisterContextSP GetRegisterContext() override;
> +
> + lldb::RegisterContextSP
> + CreateRegisterContextForFrame(StackFrame *frame) override;
> +
> + void ClearStackFrames() override;
> +
> +protected:
> + lldb::RegisterContextSP m_thread_reg_ctx_sp;
> + llvm::ArrayRef<uint8_t> m_gpregset_data;
> +
> + bool CalculateStopInfo() override;
> +};
> +
> +} // namespace minidump
> +} // namespace lldb_private
> +
> +#endif // liblldb_ThreadMinidump_h_
>
> Modified: lldb/trunk/unittests/Process/minidump/MinidumpParserTest.cpp
> URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/unittests/Process/minidump/MinidumpParserTest.cpp?rev=285587&r1=285586&r2=285587&view=diff
> ==============================================================================
> --- lldb/trunk/unittests/Process/minidump/MinidumpParserTest.cpp (original)
> +++ lldb/trunk/unittests/Process/minidump/MinidumpParserTest.cpp Mon Oct 31 10:35:18 2016
> @@ -134,7 +134,7 @@ TEST_F(MinidumpParserTest, GetModuleList
> llvm::Optional<std::string> name =
> parser->GetMinidumpString(modules[i].module_name_rva);
> ASSERT_TRUE(name.hasValue());
> - ASSERT_EQ(module_names[i], name.getValue());
> + EXPECT_EQ(module_names[i], name.getValue());
> }
> }
>
> @@ -275,8 +275,46 @@ TEST_F(MinidumpParserTest, GetPidWindows
> ASSERT_EQ(4440UL, pid.getValue());
> }
>
> -// Register stuff
> -// TODO probably split register stuff tests into different file?
> +// wow64
> +TEST_F(MinidumpParserTest, GetPidWow64) {
> + SetUpData("fizzbuzz_wow64.dmp");
> + llvm::Optional<lldb::pid_t> pid = parser->GetPid();
> + ASSERT_TRUE(pid.hasValue());
> + ASSERT_EQ(7836UL, pid.getValue());
> +}
> +
> +TEST_F(MinidumpParserTest, GetModuleListWow64) {
> + SetUpData("fizzbuzz_wow64.dmp");
> + llvm::ArrayRef<MinidumpModule> modules = parser->GetModuleList();
> + ASSERT_EQ(16UL, modules.size());
> + std::string module_names[16] = {
> + R"(D:\src\llvm\llvm\tools\lldb\packages\Python\lldbsuite\test\functionalities\postmortem\wow64_minidump\fizzbuzz.exe)",
> + R"(C:\Windows\System32\ntdll.dll)",
> + R"(C:\Windows\System32\wow64.dll)",
> + R"(C:\Windows\System32\wow64win.dll)",
> + R"(C:\Windows\System32\wow64cpu.dll)",
> + R"(D:\src\llvm\llvm\tools\lldb\packages\Python\lldbsuite\test\functionalities\postmortem\wow64_minidump\fizzbuzz.exe)",
> + R"(C:\Windows\SysWOW64\ntdll.dll)",
> + R"(C:\Windows\SysWOW64\kernel32.dll)",
> + R"(C:\Windows\SysWOW64\KERNELBASE.dll)",
> + R"(C:\Windows\SysWOW64\advapi32.dll)",
> + R"(C:\Windows\SysWOW64\msvcrt.dll)",
> + R"(C:\Windows\SysWOW64\sechost.dll)",
> + R"(C:\Windows\SysWOW64\rpcrt4.dll)",
> + R"(C:\Windows\SysWOW64\sspicli.dll)",
> + R"(C:\Windows\SysWOW64\CRYPTBASE.dll)",
> + R"(C:\Windows\System32\api-ms-win-core-synch-l1-2-0.DLL)",
> + };
> +
> + for (int i = 0; i < 16; ++i) {
> + llvm::Optional<std::string> name =
> + parser->GetMinidumpString(modules[i].module_name_rva);
> + ASSERT_TRUE(name.hasValue());
> + EXPECT_EQ(module_names[i], name.getValue());
> + }
> +}
> +
> +// Register tests
> #define REG_VAL32(x) *(reinterpret_cast<uint32_t *>(x))
> #define REG_VAL64(x) *(reinterpret_cast<uint64_t *>(x))
>
> @@ -371,3 +409,45 @@ TEST_F(MinidumpParserTest, ConvertMinidu
> }
> }
> }
> +
> +TEST_F(MinidumpParserTest, ConvertMinidumpContext_x86_32_wow64) {
> + SetUpData("fizzbuzz_wow64.dmp");
> + llvm::ArrayRef<MinidumpThread> thread_list = parser->GetThreads();
> + const MinidumpThread thread = thread_list[0];
> + llvm::ArrayRef<uint8_t> registers(parser->GetThreadContextWow64(thread));
> +
> + ArchSpec arch = parser->GetArchitecture();
> + RegisterInfoInterface *reg_interface = new RegisterContextLinux_i386(arch);
> + lldb::DataBufferSP buf =
> + ConvertMinidumpContext_x86_32(registers, reg_interface);
> + ASSERT_EQ(reg_interface->GetGPRSize(), buf->GetByteSize());
> +
> + const RegisterInfo *reg_info = reg_interface->GetRegisterInfo();
> +
> + std::map<uint64_t, uint32_t> reg_values;
> +
> + reg_values[lldb_eax_i386] = 0x00000000;
> + reg_values[lldb_ebx_i386] = 0x0037f608;
> + reg_values[lldb_ecx_i386] = 0x00e61578;
> + reg_values[lldb_edx_i386] = 0x00000008;
> + reg_values[lldb_edi_i386] = 0x00000000;
> + reg_values[lldb_esi_i386] = 0x00000002;
> + reg_values[lldb_ebp_i386] = 0x0037f654;
> + reg_values[lldb_esp_i386] = 0x0037f5b8;
> + reg_values[lldb_eip_i386] = 0x77ce01fd;
> + reg_values[lldb_eflags_i386] = 0x00000246;
> + reg_values[lldb_cs_i386] = 0x00000023;
> + reg_values[lldb_fs_i386] = 0x00000053;
> + reg_values[lldb_gs_i386] = 0x0000002b;
> + reg_values[lldb_ss_i386] = 0x0000002b;
> + reg_values[lldb_ds_i386] = 0x0000002b;
> + reg_values[lldb_es_i386] = 0x0000002b;
> +
> + for (uint32_t reg_index = 0; reg_index < reg_interface->GetRegisterCount();
> + ++reg_index) {
> + if (reg_values.find(reg_index) != reg_values.end()) {
> + EXPECT_EQ(reg_values[reg_index],
> + REG_VAL32(buf->GetBytes() + reg_info[reg_index].byte_offset));
> + }
> + }
> +}
> \ No newline at end of file
>
>
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