forked from OSchip/llvm-project
252 lines
9.3 KiB
C++
252 lines
9.3 KiB
C++
//===-- SymbolVendorMacOSX.cpp ----------------------------------*- 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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#include "SymbolVendorMacOSX.h"
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#include <string.h>
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#include "lldb/Core/Module.h"
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#include "lldb/Core/ModuleSpec.h"
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#include "lldb/Core/PluginManager.h"
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#include "lldb/Core/Section.h"
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#include "lldb/Core/StreamString.h"
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#include "lldb/Core/Timer.h"
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#include "lldb/Host/Host.h"
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#include "lldb/Host/Symbols.h"
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#include "lldb/Host/XML.h"
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#include "lldb/Symbol/ObjectFile.h"
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using namespace lldb;
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using namespace lldb_private;
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//----------------------------------------------------------------------
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// SymbolVendorMacOSX constructor
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//----------------------------------------------------------------------
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SymbolVendorMacOSX::SymbolVendorMacOSX(const lldb::ModuleSP &module_sp) :
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SymbolVendor (module_sp)
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{
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}
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//----------------------------------------------------------------------
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// Destructor
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//----------------------------------------------------------------------
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SymbolVendorMacOSX::~SymbolVendorMacOSX()
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{
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}
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static bool
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UUIDsMatch(Module *module, ObjectFile *ofile, lldb_private::Stream *feedback_strm)
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{
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if (module && ofile)
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{
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// Make sure the UUIDs match
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lldb_private::UUID dsym_uuid;
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if (!ofile->GetUUID(&dsym_uuid))
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{
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if (feedback_strm)
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{
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feedback_strm->PutCString("warning: failed to get the uuid for object file: '");
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ofile->GetFileSpec().Dump(feedback_strm);
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feedback_strm->PutCString("\n");
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}
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return false;
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}
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if (dsym_uuid == module->GetUUID())
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return true;
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// Emit some warning messages since the UUIDs do not match!
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if (feedback_strm)
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{
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feedback_strm->PutCString("warning: UUID mismatch detected between modules:\n ");
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module->GetUUID().Dump(feedback_strm);
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feedback_strm->PutChar(' ');
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module->GetFileSpec().Dump(feedback_strm);
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feedback_strm->PutCString("\n ");
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dsym_uuid.Dump(feedback_strm);
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feedback_strm->PutChar(' ');
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ofile->GetFileSpec().Dump(feedback_strm);
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feedback_strm->EOL();
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}
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}
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return false;
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}
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void
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SymbolVendorMacOSX::Initialize()
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{
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PluginManager::RegisterPlugin (GetPluginNameStatic(),
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GetPluginDescriptionStatic(),
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CreateInstance);
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}
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void
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SymbolVendorMacOSX::Terminate()
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{
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PluginManager::UnregisterPlugin (CreateInstance);
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}
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lldb_private::ConstString
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SymbolVendorMacOSX::GetPluginNameStatic()
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{
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static ConstString g_name("macosx");
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return g_name;
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}
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const char *
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SymbolVendorMacOSX::GetPluginDescriptionStatic()
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{
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return "Symbol vendor for MacOSX that looks for dSYM files that match executables.";
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}
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//----------------------------------------------------------------------
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// CreateInstance
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//
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// Platforms can register a callback to use when creating symbol
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// vendors to allow for complex debug information file setups, and to
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// also allow for finding separate debug information files.
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//----------------------------------------------------------------------
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SymbolVendor*
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SymbolVendorMacOSX::CreateInstance (const lldb::ModuleSP &module_sp, lldb_private::Stream *feedback_strm)
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{
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if (!module_sp)
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return NULL;
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ObjectFile * obj_file = module_sp->GetObjectFile();
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if (!obj_file)
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return NULL;
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static ConstString obj_file_macho("mach-o");
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ConstString obj_name = obj_file->GetPluginName();
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if (obj_name != obj_file_macho)
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return NULL;
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Timer scoped_timer (__PRETTY_FUNCTION__,
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"SymbolVendorMacOSX::CreateInstance (module = %s)",
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module_sp->GetFileSpec().GetPath().c_str());
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SymbolVendorMacOSX* symbol_vendor = new SymbolVendorMacOSX(module_sp);
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if (symbol_vendor)
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{
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char path[PATH_MAX];
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path[0] = '\0';
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// Try and locate the dSYM file on Mac OS X
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Timer scoped_timer2 ("SymbolVendorMacOSX::CreateInstance () locate dSYM",
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"SymbolVendorMacOSX::CreateInstance (module = %s) locate dSYM",
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module_sp->GetFileSpec().GetPath().c_str());
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// First check to see if the module has a symbol file in mind already.
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// If it does, then we MUST use that.
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FileSpec dsym_fspec (module_sp->GetSymbolFileFileSpec());
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ObjectFileSP dsym_objfile_sp;
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if (!dsym_fspec)
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{
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// No symbol file was specified in the module, lets try and find
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// one ourselves.
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FileSpec file_spec = obj_file->GetFileSpec();
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if (!file_spec)
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file_spec = module_sp->GetFileSpec();
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ModuleSpec module_spec(file_spec, module_sp->GetArchitecture());
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module_spec.GetUUID() = module_sp->GetUUID();
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dsym_fspec = Symbols::LocateExecutableSymbolFile (module_spec);
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if (module_spec.GetSourceMappingList().GetSize())
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module_sp->GetSourceMappingList().Append (module_spec.GetSourceMappingList (), true);
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}
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if (dsym_fspec)
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{
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DataBufferSP dsym_file_data_sp;
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lldb::offset_t dsym_file_data_offset = 0;
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dsym_objfile_sp = ObjectFile::FindPlugin(module_sp, &dsym_fspec, 0, dsym_fspec.GetByteSize(), dsym_file_data_sp, dsym_file_data_offset);
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if (UUIDsMatch(module_sp.get(), dsym_objfile_sp.get(), feedback_strm))
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{
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// We need a XML parser if we hope to parse a plist...
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if (XMLDocument::XMLEnabled())
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{
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char dsym_path[PATH_MAX];
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if (module_sp->GetSourceMappingList().IsEmpty() && dsym_fspec.GetPath(dsym_path, sizeof(dsym_path)))
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{
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lldb_private::UUID dsym_uuid;
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if (dsym_objfile_sp->GetUUID(&dsym_uuid))
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{
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std::string uuid_str = dsym_uuid.GetAsString ();
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if (!uuid_str.empty())
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{
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char *resources = strstr (dsym_path, "/Contents/Resources/");
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if (resources)
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{
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char dsym_uuid_plist_path[PATH_MAX];
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resources[strlen("/Contents/Resources/")] = '\0';
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snprintf(dsym_uuid_plist_path, sizeof(dsym_uuid_plist_path), "%s%s.plist", dsym_path, uuid_str.c_str());
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FileSpec dsym_uuid_plist_spec(dsym_uuid_plist_path, false);
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if (dsym_uuid_plist_spec.Exists())
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{
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ApplePropertyList plist(dsym_uuid_plist_path);
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if (plist)
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{
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std::string DBGBuildSourcePath;
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std::string DBGSourcePath;
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plist.GetValueAsString("DBGBuildSourcePath", DBGBuildSourcePath);
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plist.GetValueAsString("DBGSourcePath", DBGSourcePath);
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if (!DBGBuildSourcePath.empty() && !DBGSourcePath.empty())
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{
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if (DBGSourcePath[0] == '~')
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{
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FileSpec resolved_source_path(DBGSourcePath.c_str(), true);
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DBGSourcePath = resolved_source_path.GetPath();
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}
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module_sp->GetSourceMappingList().Append (ConstString(DBGBuildSourcePath), ConstString(DBGSourcePath), true);
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}
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}
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}
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}
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}
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}
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}
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}
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symbol_vendor->AddSymbolFileRepresentation(dsym_objfile_sp);
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return symbol_vendor;
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}
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}
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// Just create our symbol vendor using the current objfile as this is either
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// an executable with no dSYM (that we could locate), an executable with
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// a dSYM that has a UUID that doesn't match.
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symbol_vendor->AddSymbolFileRepresentation(obj_file->shared_from_this());
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}
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return symbol_vendor;
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}
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//------------------------------------------------------------------
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// PluginInterface protocol
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//------------------------------------------------------------------
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ConstString
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SymbolVendorMacOSX::GetPluginName()
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{
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return GetPluginNameStatic();
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}
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uint32_t
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SymbolVendorMacOSX::GetPluginVersion()
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{
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return 1;
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}
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