diff options
Diffstat (limited to 'lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp')
| -rw-r--r-- | lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp | 57 |
1 files changed, 39 insertions, 18 deletions
diff --git a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp index 941484ea3a5..3afe396f223 100644 --- a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp +++ b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp @@ -179,8 +179,9 @@ public: const FileSpec& file_spec, const ArchSpec& arch, const ConstString *object_name, - off_t object_offset) : - Module (file_spec, arch, object_name, object_offset), + off_t object_offset, + const TimeValue *object_mod_time_ptr) : + Module (file_spec, arch, object_name, object_offset, object_mod_time_ptr), m_exe_module_wp (exe_module_sp), m_cu_idx (cu_idx) { @@ -213,7 +214,7 @@ public: // Set a a pointer to this class to set our OSO DWARF file know // that the DWARF is being used along with a debug map and that // it will have the remapped sections that we do below. - SymbolFileDWARF *oso_symfile = (SymbolFileDWARF *)symbol_vendor->GetSymbolFile(); + SymbolFileDWARF *oso_symfile = SymbolFileDWARFDebugMap::GetSymbolFileAsSymbolFileDWARF(symbol_vendor->GetSymbolFile()); if (!oso_symfile) return NULL; @@ -263,10 +264,11 @@ SymbolFileDWARFDebugMap::Terminate() } -const char * +lldb_private::ConstString SymbolFileDWARFDebugMap::GetPluginNameStatic() { - return "dwarf-debugmap"; + static ConstString g_name("dwarf-debugmap"); + return g_name; } const char * @@ -381,6 +383,9 @@ SymbolFileDWARFDebugMap::InitOSO() { m_compile_unit_infos[i].so_file.SetFile(so_symbol->GetName().AsCString(), false); m_compile_unit_infos[i].oso_path = oso_symbol->GetName(); + TimeValue oso_mod_time; + oso_mod_time.OffsetWithSeconds(oso_symbol->GetAddress().GetOffset()); + m_compile_unit_infos[i].oso_mod_time = oso_mod_time; uint32_t sibling_idx = so_symbol->GetSiblingIndex(); // The sibling index can't be less that or equal to the current index "i" if (sibling_idx <= i) @@ -436,12 +441,26 @@ SymbolFileDWARFDebugMap::GetModuleByCompUnitInfo (CompileUnitInfo *comp_unit_inf } else { + ObjectFile *obj_file = GetObjectFile(); comp_unit_info->oso_sp.reset (new OSOInfo()); m_oso_map[comp_unit_info->oso_path] = comp_unit_info->oso_sp; const char *oso_path = comp_unit_info->oso_path.GetCString(); FileSpec oso_file (oso_path, false); ConstString oso_object; - if (!oso_file.Exists()) + if (oso_file.Exists()) + { + TimeValue oso_mod_time (oso_file.GetModificationTime()); + if (oso_mod_time != comp_unit_info->oso_mod_time) + { + obj_file->GetModule()->ReportError ("debug map object file '%s' has changed (actual time is 0x%" PRIx64 ", debug map time is 0x%" PRIx64 ") since this executable was linked, file will be ignored", + oso_file.GetPath().c_str(), + oso_mod_time.GetAsSecondsSinceJan1_1970(), + comp_unit_info->oso_mod_time.GetAsSecondsSinceJan1_1970()); + return NULL; + } + + } + else { const bool must_exist = true; @@ -450,7 +469,6 @@ SymbolFileDWARFDebugMap::GetModuleByCompUnitInfo (CompileUnitInfo *comp_unit_inf oso_object, must_exist)) { - comp_unit_info->oso_sp->symbol_file_supported = false; return NULL; } } @@ -458,12 +476,13 @@ SymbolFileDWARFDebugMap::GetModuleByCompUnitInfo (CompileUnitInfo *comp_unit_inf // use the debug map, to add new sections to each .o file and // even though a .o file might not have changed, the sections // that get added to the .o file can change. - comp_unit_info->oso_sp->module_sp.reset (new DebugMapModule (GetObjectFile()->GetModule(), + comp_unit_info->oso_sp->module_sp.reset (new DebugMapModule (obj_file->GetModule(), GetCompUnitInfoIndex(comp_unit_info), oso_file, m_obj_file->GetModule()->GetArchitecture(), oso_object ? &oso_object : NULL, - 0)); + 0, + oso_object ? &comp_unit_info->oso_mod_time : NULL)); } } if (comp_unit_info->oso_sp) @@ -538,6 +557,14 @@ SymbolFileDWARFDebugMap::GetSymbolFileByOSOIndex (uint32_t oso_idx) } SymbolFileDWARF * +SymbolFileDWARFDebugMap::GetSymbolFileAsSymbolFileDWARF (SymbolFile *sym_file) +{ + if (sym_file && sym_file->GetPluginName() == SymbolFileDWARF::GetPluginNameStatic()) + return (SymbolFileDWARF *)sym_file; + return NULL; +} + +SymbolFileDWARF * SymbolFileDWARFDebugMap::GetSymbolFileByCompUnitInfo (CompileUnitInfo *comp_unit_info) { Module *oso_module = GetModuleByCompUnitInfo (comp_unit_info); @@ -545,7 +572,7 @@ SymbolFileDWARFDebugMap::GetSymbolFileByCompUnitInfo (CompileUnitInfo *comp_unit { SymbolVendor *sym_vendor = oso_module->GetSymbolVendor(); if (sym_vendor) - return (SymbolFileDWARF *)sym_vendor->GetSymbolFile(); + return GetSymbolFileAsSymbolFileDWARF (sym_vendor->GetSymbolFile()); } return NULL; } @@ -1219,15 +1246,9 @@ SymbolFileDWARFDebugMap::FindNamespace (const lldb_private::SymbolContext& sc, //------------------------------------------------------------------ // PluginInterface protocol //------------------------------------------------------------------ -const char * +lldb_private::ConstString SymbolFileDWARFDebugMap::GetPluginName() { - return "SymbolFileDWARFDebugMap"; -} - -const char * -SymbolFileDWARFDebugMap::GetShortPluginName() -{ return GetPluginNameStatic(); } @@ -1454,7 +1475,7 @@ SymbolFileDWARFDebugMap::LinkOSOAddress (Address &addr) if (addr_module == exe_module) return true; // Address is already in terms of the main executable module - CompileUnitInfo *cu_info = GetCompileUnitInfo ((SymbolFileDWARF *)addr_module->GetSymbolVendor()->GetSymbolFile()); + CompileUnitInfo *cu_info = GetCompileUnitInfo (GetSymbolFileAsSymbolFileDWARF(addr_module->GetSymbolVendor()->GetSymbolFile())); if (cu_info) { const lldb::addr_t oso_file_addr = addr.GetFileAddress(); |
