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llvm/lldb/source/lldb.cpp
Greg Clayton c3776bf288 First pass at mach-o core file support is in. It currently works for x86_64 
user space programs. The core file support is implemented by making a process
plug-in that will dress up the threads and stack frames by using the core file
memory. 

Added many default implementations for the lldb_private::Process functions so
that plug-ins like the ProcessMachCore don't need to override many many 
functions only to have to return an error.

Added new virtual functions to the ObjectFile class for extracting the frozen
thread states that might be stored in object files. The default implementations
return no thread information, but any platforms that support core files that
contain frozen thread states (like mach-o) can make a module using the core
file and then extract the information. The object files can enumerate the 
threads and also provide the register state for each thread. Since each object
file knows how the thread registers are stored, they are responsible for 
creating a suitable register context that can be used by the core file threads.

Changed the process CreateInstace callbacks to return a shared pointer and
to also take an "const FileSpec *core_file" parameter to allow for core file
support. This will also allow for lldb_private::Process subclasses to be made
that could load crash logs. This should be possible on darwin where the crash
logs contain all of the stack frames for all of the threads, yet the crash
logs only contain the registers for the crashed thrad. It should also allow
some variables to be viewed for the thread that crashed.

llvm-svn: 150154
2012-02-09 06:16:32 +00:00

320 lines
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//===-- lldb.cpp ------------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "lldb/lldb-private.h"
#include "lldb/lldb-private-log.h"
#include "lldb/Core/ArchSpec.h"
#include "lldb/Core/Debugger.h"
#include "lldb/Core/Log.h"
#include "lldb/Core/PluginManager.h"
#include "lldb/Core/RegularExpression.h"
#include "lldb/Core/Timer.h"
#include "lldb/Host/Host.h"
#include "lldb/Host/Mutex.h"
#include "lldb/Target/Target.h"
#include "lldb/Target/Thread.h"
#include "llvm/ADT/StringRef.h"
#include "Plugins/ABI/MacOSX-i386/ABIMacOSX_i386.h"
#include "Plugins/ABI/MacOSX-arm/ABIMacOSX_arm.h"
#include "Plugins/ABI/SysV-x86_64/ABISysV_x86_64.h"
#include "Plugins/Disassembler/llvm/DisassemblerLLVM.h"
#include "Plugins/Instruction/ARM/EmulateInstructionARM.h"
#include "Plugins/SymbolVendor/MacOSX/SymbolVendorMacOSX.h"
#include "Plugins/ObjectContainer/BSD-Archive/ObjectContainerBSDArchive.h"
#include "Plugins/ObjectFile/ELF/ObjectFileELF.h"
#include "Plugins/SymbolFile/DWARF/SymbolFileDWARF.h"
#include "Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.h"
#include "Plugins/SymbolFile/Symtab/SymbolFileSymtab.h"
#include "Plugins/UnwindAssembly/x86/UnwindAssembly-x86.h"
#include "Plugins/UnwindAssembly/InstEmulation/UnwindAssemblyInstEmulation.h"
#include "Plugins/ObjectFile/PECOFF/ObjectFilePECOFF.h"
#if defined (__APPLE__)
#include "Plugins/DynamicLoader/MacOSX-DYLD/DynamicLoaderMacOSXDYLD.h"
#include "Plugins/DynamicLoader/Darwin-Kernel/DynamicLoaderDarwinKernel.h"
#include "Plugins/OperatingSystem/Darwin-Kernel/OperatingSystemDarwinKernel.h"
#include "Plugins/LanguageRuntime/CPlusPlus/ItaniumABI/ItaniumABILanguageRuntime.h"
#include "Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCRuntimeV1.h"
#include "Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCRuntimeV2.h"
#include "Plugins/ObjectContainer/Universal-Mach-O/ObjectContainerUniversalMachO.h"
#include "Plugins/ObjectFile/Mach-O/ObjectFileMachO.h"
#include "Plugins/Process/MacOSX-Kernel/ProcessKDP.h"
#include "Plugins/Process/gdb-remote/ProcessGDBRemote.h"
#include "Plugins/Platform/MacOSX/PlatformMacOSX.h"
#include "Plugins/Platform/MacOSX/PlatformRemoteiOS.h"
#endif
#include "Plugins/Process/mach-core/ProcessMachCore.h"
#if defined (__linux__)
#include "Plugins/DynamicLoader/POSIX-DYLD/DynamicLoaderPOSIXDYLD.h"
#include "Plugins/Platform/Linux/PlatformLinux.h"
#include "Plugins/Process/Linux/ProcessLinux.h"
#endif
#if defined (__FreeBSD__)
#include "Plugins/DynamicLoader/POSIX-DYLD/DynamicLoaderPOSIXDYLD.h"
#include "Plugins/Platform/FreeBSD/PlatformFreeBSD.h"
#include "Plugins/Process/POSIX/ProcessPOSIX.h"
#include "Plugins/Process/FreeBSD/ProcessFreeBSD.h"
#endif
#include "Plugins/Platform/gdb-server/PlatformRemoteGDBServer.h"
#include "Plugins/DynamicLoader/Static/DynamicLoaderStatic.h"
using namespace lldb;
using namespace lldb_private;
void
lldb_private::Initialize ()
{
// Make sure we inialize only once
static Mutex g_inited_mutex(Mutex::eMutexTypeRecursive);
static bool g_inited = false;
Mutex::Locker locker(g_inited_mutex);
if (!g_inited)
{
g_inited = true;
Log::Initialize();
Timer::Initialize ();
Timer scoped_timer (__PRETTY_FUNCTION__, __PRETTY_FUNCTION__);
ABIMacOSX_i386::Initialize();
ABIMacOSX_arm::Initialize();
ABISysV_x86_64::Initialize();
DisassemblerLLVM::Initialize();
ObjectContainerBSDArchive::Initialize();
ObjectFileELF::Initialize();
SymbolFileDWARF::Initialize();
SymbolFileSymtab::Initialize();
UnwindAssemblyInstEmulation::Initialize();
UnwindAssembly_x86::Initialize();
EmulateInstructionARM::Initialize ();
ObjectFilePECOFF::Initialize ();
#if defined (__APPLE__)
//----------------------------------------------------------------------
// Apple/Darwin hosted plugins
//----------------------------------------------------------------------
DynamicLoaderMacOSXDYLD::Initialize();
DynamicLoaderDarwinKernel::Initialize();
OperatingSystemDarwinKernel::Initialize();
SymbolFileDWARFDebugMap::Initialize();
ItaniumABILanguageRuntime::Initialize();
AppleObjCRuntimeV2::Initialize();
AppleObjCRuntimeV1::Initialize();
ObjectContainerUniversalMachO::Initialize();
ObjectFileMachO::Initialize();
ProcessKDP::Initialize();
ProcessGDBRemote::Initialize();
ProcessMachCore::Initialize();
SymbolVendorMacOSX::Initialize();
PlatformMacOSX::Initialize();
PlatformRemoteiOS::Initialize();
#endif
#if defined (__linux__)
//----------------------------------------------------------------------
// Linux hosted plugins
//----------------------------------------------------------------------
PlatformLinux::Initialize();
ProcessLinux::Initialize();
DynamicLoaderPOSIXDYLD::Initialize();
#endif
#if defined (__FreeBSD__)
PlatformFreeBSD::Initialize();
ProcessFreeBSD::Initialize();
DynamicLoaderPOSIXDYLD::Initialize();
#endif
//----------------------------------------------------------------------
// Platform agnostic plugins
//----------------------------------------------------------------------
PlatformRemoteGDBServer::Initialize ();
DynamicLoaderStatic::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
lldb_private::WillTerminate()
{
Host::WillTerminate();
}
void
lldb_private::Terminate ()
{
Timer scoped_timer (__PRETTY_FUNCTION__, __PRETTY_FUNCTION__);
// Terminate and unload and loaded system or user LLDB plug-ins
PluginManager::Terminate();
ABIMacOSX_i386::Terminate();
ABIMacOSX_arm::Terminate();
ABISysV_x86_64::Terminate();
DisassemblerLLVM::Terminate();
ObjectContainerBSDArchive::Terminate();
ObjectFileELF::Terminate();
SymbolFileDWARF::Terminate();
SymbolFileSymtab::Terminate();
UnwindAssembly_x86::Terminate();
UnwindAssemblyInstEmulation::Terminate();
EmulateInstructionARM::Terminate ();
ObjectFilePECOFF::Terminate ();
#if defined (__APPLE__)
DynamicLoaderMacOSXDYLD::Terminate();
DynamicLoaderDarwinKernel::Terminate();
OperatingSystemDarwinKernel::Terminate();
SymbolFileDWARFDebugMap::Terminate();
ItaniumABILanguageRuntime::Terminate();
AppleObjCRuntimeV2::Terminate();
AppleObjCRuntimeV1::Terminate();
ObjectContainerUniversalMachO::Terminate();
ObjectFileMachO::Terminate();
ProcessMachCore::Terminate();
ProcessKDP::Terminate();
ProcessGDBRemote::Terminate();
SymbolVendorMacOSX::Terminate();
PlatformMacOSX::Terminate();
PlatformRemoteiOS::Terminate();
#endif
Debugger::SettingsTerminate ();
#if defined (__linux__)
PlatformLinux::Terminate();
ProcessLinux::Terminate();
DynamicLoaderPOSIXDYLD::Terminate();
#endif
#if defined (__FreeBSD__)
PlatformFreeBSD::Terminate();
ProcessFreeBSD::Terminate();
DynamicLoaderPOSIXDYLD::Terminate();
#endif
DynamicLoaderStatic::Terminate();
Log::Terminate();
}
extern "C" const double liblldb_coreVersionNumber;
const char *
lldb_private::GetVersion ()
{
static char g_version_string[32];
if (g_version_string[0] == '\0')
::snprintf (g_version_string, sizeof(g_version_string), "LLDB-%g", liblldb_coreVersionNumber);
return g_version_string;
}
const char *
lldb_private::GetVoteAsCString (Vote vote)
{
switch (vote)
{
case eVoteNo: return "no";
case eVoteNoOpinion: return "no opinion";
case eVoteYes: return "yes";
default:
break;
}
return "invalid";
}
const char *
lldb_private::GetSectionTypeAsCString (SectionType sect_type)
{
switch (sect_type)
{
case eSectionTypeInvalid: return "invalid";
case eSectionTypeCode: return "code";
case eSectionTypeContainer: return "container";
case eSectionTypeData: return "data";
case eSectionTypeDataCString: return "data-cstr";
case eSectionTypeDataCStringPointers: return "data-cstr-ptr";
case eSectionTypeDataSymbolAddress: return "data-symbol-addr";
case eSectionTypeData4: return "data-4-byte";
case eSectionTypeData8: return "data-8-byte";
case eSectionTypeData16: return "data-16-byte";
case eSectionTypeDataPointers: return "data-ptrs";
case eSectionTypeDebug: return "debug";
case eSectionTypeZeroFill: return "zero-fill";
case eSectionTypeDataObjCMessageRefs: return "objc-message-refs";
case eSectionTypeDataObjCCFStrings: return "objc-cfstrings";
case eSectionTypeDWARFDebugAbbrev: return "dwarf-abbrev";
case eSectionTypeDWARFDebugAranges: return "dwarf-aranges";
case eSectionTypeDWARFDebugFrame: return "dwarf-frame";
case eSectionTypeDWARFDebugInfo: return "dwarf-info";
case eSectionTypeDWARFDebugLine: return "dwarf-line";
case eSectionTypeDWARFDebugLoc: return "dwarf-loc";
case eSectionTypeDWARFDebugMacInfo: return "dwarf-macinfo";
case eSectionTypeDWARFDebugPubNames: return "dwarf-pubnames";
case eSectionTypeDWARFDebugPubTypes: return "dwarf-pubtypes";
case eSectionTypeDWARFDebugRanges: return "dwarf-ranges";
case eSectionTypeDWARFDebugStr: return "dwarf-str";
case eSectionTypeDWARFAppleNames: return "apple-names";
case eSectionTypeDWARFAppleTypes: return "apple-types";
case eSectionTypeDWARFAppleNamespaces: return "apple-namespaces";
case eSectionTypeDWARFAppleObjC: return "apple-objc";
case eSectionTypeEHFrame: return "eh-frame";
case eSectionTypeOther: return "regular";
}
return "unknown";
}
bool
lldb_private::NameMatches (const char *name,
NameMatchType match_type,
const char *match)
{
if (match_type == eNameMatchIgnore)
return true;
if (name == match)
return true;
if (name && match)
{
llvm::StringRef name_sref(name);
llvm::StringRef match_sref(match);
switch (match_type)
{
case eNameMatchIgnore:
return true;
case eNameMatchEquals: return name_sref == match_sref;
case eNameMatchContains: return name_sref.find (match_sref) != llvm::StringRef::npos;
case eNameMatchStartsWith: return name_sref.startswith (match_sref);
case eNameMatchEndsWith: return name_sref.endswith (match_sref);
case eNameMatchRegularExpression:
{
RegularExpression regex (match);
return regex.Execute (name);
}
break;
default:
assert (!"unhandled NameMatchType in lldb_private::NameMatches()");
break;
}
}
return false;
}
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