teak-llvm/lldb/source/API/SystemInitializerFull.cpp
Ulrich Weigand bb00d0b6b2 Support Linux on SystemZ as platform
This patch adds support for Linux on SystemZ:
- A new ArchSpec value of eCore_s390x_generic
- A new directory Plugins/ABI/SysV-s390x providing an ABI implementation
- Register context support
- Native Linux support including watchpoint support
- ELF core file support
- Misc. support throughout the code base (e.g. breakpoint opcodes)
- Test case updates to support the platform

This should provide complete support for debugging the SystemZ platform.
Not yet supported are optional features like transaction support (zEC12)
or SIMD vector support (z13).

There is no instruction emulation, since our ABI requires that all code
provide correct DWARF CFI at all PC locations in .eh_frame to support
unwinding (i.e. -fasynchronous-unwind-tables is on by default).

The implementation follows existing platforms in a mostly straightforward
manner.  A couple of things that are different:

- We do not use PTRACE_PEEKUSER / PTRACE_POKEUSER to access single registers,
  since some registers (access register) reside at offsets in the user area
  that are multiples of 4, but the PTRACE_PEEKUSER interface only allows
  accessing aligned 8-byte blocks in the user area.  Instead, we use a s390
  specific ptrace interface PTRACE_PEEKUSR_AREA / PTRACE_POKEUSR_AREA that
  allows accessing a whole block of the user area in one go, so in effect
  allowing to treat parts of the user area as register sets.

- SystemZ hardware does not provide any means to implement read watchpoints,
  only write watchpoints.  In fact, we can only support a *single* write
  watchpoint (but this can span a range of arbitrary size).  In LLDB this
  means we support only a single watchpoint.  I've set all test cases that
  require read watchpoints (or multiple watchpoints) to expected failure
  on the platform.  [ Note that there were two test cases that install
  a read/write watchpoint even though they nowhere rely on the "read"
  property.  I've changed those to simply use plain write watchpoints. ]

Differential Revision: http://reviews.llvm.org/D18978

llvm-svn: 266308
2016-04-14 14:28:34 +00:00

498 lines
18 KiB
C++

//===-- SystemInitializerFull.cpp -------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#if !defined(LLDB_DISABLE_PYTHON)
#include "Plugins/ScriptInterpreter/Python/lldb-python.h"
#endif
#include "lldb/API/SystemInitializerFull.h"
#include "lldb/API/SBCommandInterpreter.h"
#if !defined(LLDB_DISABLE_PYTHON)
#include "Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.h"
#endif
#include "lldb/Core/Debugger.h"
#include "lldb/Core/Timer.h"
#include "lldb/Host/Host.h"
#include "lldb/Initialization/SystemInitializerCommon.h"
#include "lldb/Interpreter/CommandInterpreter.h"
#include "lldb/Symbol/ClangASTContext.h"
#include "lldb/Symbol/GoASTContext.h"
#include "lldb/Symbol/JavaASTContext.h"
#include "Plugins/ABI/MacOSX-arm/ABIMacOSX_arm.h"
#include "Plugins/ABI/MacOSX-arm64/ABIMacOSX_arm64.h"
#include "Plugins/ABI/MacOSX-i386/ABIMacOSX_i386.h"
#include "Plugins/ABI/SysV-arm/ABISysV_arm.h"
#include "Plugins/ABI/SysV-arm64/ABISysV_arm64.h"
#include "Plugins/ABI/SysV-hexagon/ABISysV_hexagon.h"
#include "Plugins/ABI/SysV-i386/ABISysV_i386.h"
#include "Plugins/ABI/SysV-mips/ABISysV_mips.h"
#include "Plugins/ABI/SysV-mips64/ABISysV_mips64.h"
#include "Plugins/ABI/SysV-ppc/ABISysV_ppc.h"
#include "Plugins/ABI/SysV-ppc64/ABISysV_ppc64.h"
#include "Plugins/ABI/SysV-s390x/ABISysV_s390x.h"
#include "Plugins/ABI/SysV-x86_64/ABISysV_x86_64.h"
#include "Plugins/Disassembler/llvm/DisassemblerLLVMC.h"
#include "Plugins/DynamicLoader/Static/DynamicLoaderStatic.h"
#include "Plugins/DynamicLoader/MacOSX-DYLD/DynamicLoaderMacOSXDYLD.h"
#include "Plugins/DynamicLoader/POSIX-DYLD/DynamicLoaderPOSIXDYLD.h"
#include "Plugins/DynamicLoader/Windows-DYLD/DynamicLoaderWindowsDYLD.h"
#include "Plugins/Instruction/ARM64/EmulateInstructionARM64.h"
#include "Plugins/InstrumentationRuntime/AddressSanitizer/AddressSanitizerRuntime.h"
#include "Plugins/InstrumentationRuntime/ThreadSanitizer/ThreadSanitizerRuntime.h"
#include "Plugins/JITLoader/GDB/JITLoaderGDB.h"
#include "Plugins/Language/CPlusPlus/CPlusPlusLanguage.h"
#include "Plugins/Language/Go/GoLanguage.h"
#include "Plugins/Language/Java/JavaLanguage.h"
#include "Plugins/Language/ObjC/ObjCLanguage.h"
#include "Plugins/Language/ObjCPlusPlus/ObjCPlusPlusLanguage.h"
#include "Plugins/LanguageRuntime/CPlusPlus/ItaniumABI/ItaniumABILanguageRuntime.h"
#include "Plugins/LanguageRuntime/Go/GoLanguageRuntime.h"
#include "Plugins/LanguageRuntime/Java/JavaLanguageRuntime.h"
#include "Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCRuntimeV1.h"
#include "Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCRuntimeV2.h"
#include "Plugins/LanguageRuntime/RenderScript/RenderScriptRuntime/RenderScriptRuntime.h"
#include "Plugins/MemoryHistory/asan/MemoryHistoryASan.h"
#include "Plugins/OperatingSystem/Python/OperatingSystemPython.h"
#include "Plugins/OperatingSystem/Go/OperatingSystemGo.h"
#include "Plugins/Platform/gdb-server/PlatformRemoteGDBServer.h"
#include "Plugins/Process/elf-core/ProcessElfCore.h"
#include "Plugins/Process/gdb-remote/ProcessGDBRemote.h"
#include "Plugins/ScriptInterpreter/None/ScriptInterpreterNone.h"
#include "Plugins/SymbolFile/DWARF/SymbolFileDWARF.h"
#include "Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.h"
#include "Plugins/SymbolFile/PDB/SymbolFilePDB.h"
#include "Plugins/SymbolFile/Symtab/SymbolFileSymtab.h"
#include "Plugins/SymbolVendor/ELF/SymbolVendorELF.h"
#include "Plugins/SystemRuntime/MacOSX/SystemRuntimeMacOSX.h"
#include "Plugins/UnwindAssembly/InstEmulation/UnwindAssemblyInstEmulation.h"
#include "Plugins/UnwindAssembly/x86/UnwindAssembly-x86.h"
#if defined(__APPLE__)
#include "Plugins/Process/mach-core/ProcessMachCore.h"
#include "Plugins/Process/MacOSX-Kernel/ProcessKDP.h"
#include "Plugins/SymbolVendor/MacOSX/SymbolVendorMacOSX.h"
#include "Plugins/Platform/MacOSX/PlatformAppleTVSimulator.h"
#include "Plugins/Platform/MacOSX/PlatformAppleWatchSimulator.h"
#include "Plugins/Platform/MacOSX/PlatformRemoteAppleTV.h"
#include "Plugins/Platform/MacOSX/PlatformRemoteAppleWatch.h"
#include "Plugins/DynamicLoader/Darwin-Kernel/DynamicLoaderDarwinKernel.h"
#endif
#if defined(__FreeBSD__)
#include "Plugins/Process/FreeBSD/ProcessFreeBSD.h"
#endif
#if defined(_MSC_VER)
#include "lldb/Host/windows/windows.h"
#include "Plugins/Process/Windows/Live/ProcessWindowsLive.h"
#include "Plugins/Process/Windows/MiniDump/ProcessWinMiniDump.h"
#endif
#include "llvm/Support/TargetSelect.h"
#include <string>
using namespace lldb_private;
#ifndef LLDB_DISABLE_PYTHON
// Defined in the SWIG source file
#if PY_MAJOR_VERSION >= 3
extern "C" PyObject*
PyInit__lldb(void);
#define LLDBSwigPyInit PyInit__lldb
#else
extern "C" void
init_lldb(void);
#define LLDBSwigPyInit init_lldb
#endif
// these are the Pythonic implementations of the required callbacks
// these are scripting-language specific, which is why they belong here
// we still need to use function pointers to them instead of relying
// on linkage-time resolution because the SWIG stuff and this file
// get built at different times
extern "C" bool
LLDBSwigPythonBreakpointCallbackFunction (const char *python_function_name,
const char *session_dictionary_name,
const lldb::StackFrameSP& sb_frame,
const lldb::BreakpointLocationSP& sb_bp_loc);
extern "C" bool
LLDBSwigPythonWatchpointCallbackFunction (const char *python_function_name,
const char *session_dictionary_name,
const lldb::StackFrameSP& sb_frame,
const lldb::WatchpointSP& sb_wp);
extern "C" bool
LLDBSwigPythonCallTypeScript (const char *python_function_name,
void *session_dictionary,
const lldb::ValueObjectSP& valobj_sp,
void** pyfunct_wrapper,
const lldb::TypeSummaryOptionsSP& options_sp,
std::string& retval);
extern "C" void*
LLDBSwigPythonCreateSyntheticProvider (const char *python_class_name,
const char *session_dictionary_name,
const lldb::ValueObjectSP& valobj_sp);
extern "C" void*
LLDBSwigPythonCreateCommandObject (const char *python_class_name,
const char *session_dictionary_name,
const lldb::DebuggerSP debugger_sp);
extern "C" void*
LLDBSwigPythonCreateScriptedThreadPlan (const char *python_class_name,
const char *session_dictionary_name,
const lldb::ThreadPlanSP& thread_plan_sp);
extern "C" bool
LLDBSWIGPythonCallThreadPlan (void *implementor,
const char *method_name,
Event *event_sp,
bool &got_error);
extern "C" size_t
LLDBSwigPython_CalculateNumChildren (void *implementor, uint32_t max);
extern "C" void *
LLDBSwigPython_GetChildAtIndex (void *implementor, uint32_t idx);
extern "C" int
LLDBSwigPython_GetIndexOfChildWithName (void *implementor, const char* child_name);
extern "C" void *
LLDBSWIGPython_CastPyObjectToSBValue (void* data);
extern lldb::ValueObjectSP
LLDBSWIGPython_GetValueObjectSPFromSBValue (void* data);
extern "C" bool
LLDBSwigPython_UpdateSynthProviderInstance (void* implementor);
extern "C" bool
LLDBSwigPython_MightHaveChildrenSynthProviderInstance (void* implementor);
extern "C" void *
LLDBSwigPython_GetValueSynthProviderInstance (void* implementor);
extern "C" bool
LLDBSwigPythonCallCommand (const char *python_function_name,
const char *session_dictionary_name,
lldb::DebuggerSP& debugger,
const char* args,
lldb_private::CommandReturnObject &cmd_retobj,
lldb::ExecutionContextRefSP exe_ctx_ref_sp);
extern "C" bool
LLDBSwigPythonCallCommandObject (void *implementor,
lldb::DebuggerSP& debugger,
const char* args,
lldb_private::CommandReturnObject& cmd_retobj,
lldb::ExecutionContextRefSP exe_ctx_ref_sp);
extern "C" bool
LLDBSwigPythonCallModuleInit (const char *python_module_name,
const char *session_dictionary_name,
lldb::DebuggerSP& debugger);
extern "C" void*
LLDBSWIGPythonCreateOSPlugin (const char *python_class_name,
const char *session_dictionary_name,
const lldb::ProcessSP& process_sp);
extern "C" bool
LLDBSWIGPythonRunScriptKeywordProcess (const char* python_function_name,
const char* session_dictionary_name,
lldb::ProcessSP& process,
std::string& output);
extern "C" bool
LLDBSWIGPythonRunScriptKeywordThread (const char* python_function_name,
const char* session_dictionary_name,
lldb::ThreadSP& thread,
std::string& output);
extern "C" bool
LLDBSWIGPythonRunScriptKeywordTarget (const char* python_function_name,
const char* session_dictionary_name,
lldb::TargetSP& target,
std::string& output);
extern "C" bool
LLDBSWIGPythonRunScriptKeywordFrame (const char* python_function_name,
const char* session_dictionary_name,
lldb::StackFrameSP& frame,
std::string& output);
extern "C" bool
LLDBSWIGPythonRunScriptKeywordValue (const char* python_function_name,
const char* session_dictionary_name,
lldb::ValueObjectSP& value,
std::string& output);
extern "C" void*
LLDBSWIGPython_GetDynamicSetting (void* module,
const char* setting,
const lldb::TargetSP& target_sp);
#endif
SystemInitializerFull::SystemInitializerFull()
{
}
SystemInitializerFull::~SystemInitializerFull()
{
}
void
SystemInitializerFull::Initialize()
{
SystemInitializerCommon::Initialize();
ScriptInterpreterNone::Initialize();
#ifndef LLDB_DISABLE_PYTHON
OperatingSystemPython::Initialize();
#endif
OperatingSystemGo::Initialize();
#if !defined(LLDB_DISABLE_PYTHON)
InitializeSWIG();
// ScriptInterpreterPython::Initialize() depends on things like HostInfo being initialized
// so it can compute the python directory etc, so we need to do this after
// SystemInitializerCommon::Initialize().
ScriptInterpreterPython::Initialize();
#endif
// Initialize LLVM and Clang
llvm::InitializeAllTargets();
llvm::InitializeAllAsmPrinters();
llvm::InitializeAllTargetMCs();
llvm::InitializeAllDisassemblers();
ClangASTContext::Initialize();
GoASTContext::Initialize();
JavaASTContext::Initialize();
ABIMacOSX_i386::Initialize();
ABIMacOSX_arm::Initialize();
ABIMacOSX_arm64::Initialize();
ABISysV_arm::Initialize();
ABISysV_arm64::Initialize();
ABISysV_hexagon::Initialize();
ABISysV_i386::Initialize();
ABISysV_x86_64::Initialize();
ABISysV_ppc::Initialize();
ABISysV_ppc64::Initialize();
ABISysV_mips::Initialize();
ABISysV_mips64::Initialize();
ABISysV_s390x::Initialize();
DisassemblerLLVMC::Initialize();
JITLoaderGDB::Initialize();
ProcessElfCore::Initialize();
#if defined(_MSC_VER)
ProcessWinMiniDump::Initialize();
#endif
MemoryHistoryASan::Initialize();
AddressSanitizerRuntime::Initialize();
ThreadSanitizerRuntime::Initialize();
SymbolVendorELF::Initialize();
SymbolFileDWARF::Initialize();
SymbolFilePDB::Initialize();
SymbolFileSymtab::Initialize();
UnwindAssemblyInstEmulation::Initialize();
UnwindAssembly_x86::Initialize();
EmulateInstructionARM64::Initialize();
SymbolFileDWARFDebugMap::Initialize();
ItaniumABILanguageRuntime::Initialize();
AppleObjCRuntimeV2::Initialize();
AppleObjCRuntimeV1::Initialize();
SystemRuntimeMacOSX::Initialize();
RenderScriptRuntime::Initialize();
GoLanguageRuntime::Initialize();
JavaLanguageRuntime::Initialize();
CPlusPlusLanguage::Initialize();
GoLanguage::Initialize();
JavaLanguage::Initialize();
ObjCLanguage::Initialize();
ObjCPlusPlusLanguage::Initialize();
#if defined(_MSC_VER)
ProcessWindowsLive::Initialize();
#endif
#if defined(__FreeBSD__)
ProcessFreeBSD::Initialize();
#endif
#if defined(__APPLE__)
SymbolVendorMacOSX::Initialize();
ProcessKDP::Initialize();
ProcessMachCore::Initialize();
PlatformAppleTVSimulator::Initialize();
PlatformAppleWatchSimulator::Initialize();
PlatformRemoteAppleTV::Initialize();
PlatformRemoteAppleWatch::Initialize();
DynamicLoaderDarwinKernel::Initialize();
#endif
//----------------------------------------------------------------------
// Platform agnostic plugins
//----------------------------------------------------------------------
platform_gdb_server::PlatformRemoteGDBServer::Initialize();
process_gdb_remote::ProcessGDBRemote::Initialize();
DynamicLoaderMacOSXDYLD::Initialize();
DynamicLoaderPOSIXDYLD::Initialize();
DynamicLoaderStatic::Initialize();
DynamicLoaderWindowsDYLD::Initialize();
// Scan for any system or user LLDB plug-ins
PluginManager::Initialize();
// The process settings need to know about installed plug-ins, so the Settings must be initialized
// AFTER PluginManager::Initialize is called.
Debugger::SettingsInitialize();
}
void SystemInitializerFull::InitializeSWIG()
{
#if !defined(LLDB_DISABLE_PYTHON)
ScriptInterpreterPython::InitializeInterpreter(
LLDBSwigPyInit,
LLDBSwigPythonBreakpointCallbackFunction,
LLDBSwigPythonWatchpointCallbackFunction,
LLDBSwigPythonCallTypeScript,
LLDBSwigPythonCreateSyntheticProvider,
LLDBSwigPythonCreateCommandObject,
LLDBSwigPython_CalculateNumChildren,
LLDBSwigPython_GetChildAtIndex,
LLDBSwigPython_GetIndexOfChildWithName,
LLDBSWIGPython_CastPyObjectToSBValue,
LLDBSWIGPython_GetValueObjectSPFromSBValue,
LLDBSwigPython_UpdateSynthProviderInstance,
LLDBSwigPython_MightHaveChildrenSynthProviderInstance,
LLDBSwigPython_GetValueSynthProviderInstance,
LLDBSwigPythonCallCommand,
LLDBSwigPythonCallCommandObject,
LLDBSwigPythonCallModuleInit,
LLDBSWIGPythonCreateOSPlugin,
LLDBSWIGPythonRunScriptKeywordProcess,
LLDBSWIGPythonRunScriptKeywordThread,
LLDBSWIGPythonRunScriptKeywordTarget,
LLDBSWIGPythonRunScriptKeywordFrame,
LLDBSWIGPythonRunScriptKeywordValue,
LLDBSWIGPython_GetDynamicSetting,
LLDBSwigPythonCreateScriptedThreadPlan,
LLDBSWIGPythonCallThreadPlan);
#endif
}
void
SystemInitializerFull::Terminate()
{
Timer scoped_timer(__PRETTY_FUNCTION__, __PRETTY_FUNCTION__);
Debugger::SettingsTerminate();
// Terminate and unload and loaded system or user LLDB plug-ins
PluginManager::Terminate();
ClangASTContext::Terminate();
GoASTContext::Terminate();
JavaASTContext::Terminate();
ABIMacOSX_i386::Terminate();
ABIMacOSX_arm::Terminate();
ABIMacOSX_arm64::Terminate();
ABISysV_arm::Terminate();
ABISysV_arm64::Terminate();
ABISysV_hexagon::Terminate();
ABISysV_i386::Terminate();
ABISysV_x86_64::Terminate();
ABISysV_ppc::Terminate();
ABISysV_ppc64::Terminate();
ABISysV_mips::Terminate();
ABISysV_mips64::Terminate();
ABISysV_s390x::Terminate();
DisassemblerLLVMC::Terminate();
JITLoaderGDB::Terminate();
ProcessElfCore::Terminate();
#if defined(_MSC_VER)
ProcessWinMiniDump::Terminate();
#endif
MemoryHistoryASan::Terminate();
AddressSanitizerRuntime::Terminate();
ThreadSanitizerRuntime::Terminate();
SymbolVendorELF::Terminate();
SymbolFileDWARF::Terminate();
SymbolFilePDB::Terminate();
SymbolFileSymtab::Terminate();
UnwindAssembly_x86::Terminate();
UnwindAssemblyInstEmulation::Terminate();
EmulateInstructionARM64::Terminate();
SymbolFileDWARFDebugMap::Terminate();
ItaniumABILanguageRuntime::Terminate();
AppleObjCRuntimeV2::Terminate();
AppleObjCRuntimeV1::Terminate();
SystemRuntimeMacOSX::Terminate();
RenderScriptRuntime::Terminate();
JavaLanguageRuntime::Terminate();
CPlusPlusLanguage::Terminate();
GoLanguage::Terminate();
JavaLanguage::Terminate();
ObjCLanguage::Terminate();
ObjCPlusPlusLanguage::Terminate();
#if defined(__APPLE__)
DynamicLoaderDarwinKernel::Terminate();
ProcessMachCore::Terminate();
ProcessKDP::Terminate();
SymbolVendorMacOSX::Terminate();
PlatformAppleTVSimulator::Terminate();
PlatformAppleWatchSimulator::Terminate();
PlatformRemoteAppleTV::Terminate();
PlatformRemoteAppleWatch::Terminate();
#endif
#if defined(__FreeBSD__)
ProcessFreeBSD::Terminate();
#endif
Debugger::SettingsTerminate();
platform_gdb_server::PlatformRemoteGDBServer::Terminate();
process_gdb_remote::ProcessGDBRemote::Terminate();
DynamicLoaderMacOSXDYLD::Terminate();
DynamicLoaderPOSIXDYLD::Terminate();
DynamicLoaderStatic::Terminate();
DynamicLoaderWindowsDYLD::Terminate();
#ifndef LLDB_DISABLE_PYTHON
OperatingSystemPython::Terminate();
#endif
OperatingSystemGo::Terminate();
// Now shutdown the common parts, in reverse order.
SystemInitializerCommon::Terminate();
}