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llvm-project/lldb/source/Core/Module.cpp

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//===-- Module.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/Core/Module.h"
#include "lldb/Core/DataBuffer.h"
#include "lldb/Core/DataBufferHeap.h"
#include "lldb/Core/Log.h"
#include "lldb/Core/ModuleList.h"
#include "lldb/Core/ModuleSpec.h"
#include "lldb/Core/RegularExpression.h"
#include "lldb/Core/Section.h"
#include "lldb/Core/StreamString.h"
#include "lldb/Core/Timer.h"
#include "lldb/Host/Host.h"
#include "lldb/lldb-private-log.h"
#include "lldb/Symbol/CompileUnit.h"
#include "lldb/Symbol/ObjectFile.h"
#include "lldb/Symbol/SymbolContext.h"
#include "lldb/Symbol/SymbolVendor.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/Target.h"
using namespace lldb;
using namespace lldb_private;
// Shared pointers to modules track module lifetimes in
// targets and in the global module, but this collection
// will track all module objects that are still alive
typedef std::vector<Module *> ModuleCollection;
static ModuleCollection &
GetModuleCollection()
{
// This module collection needs to live past any module, so we could either make it a
// shared pointer in each module or just leak is. Since it is only an empty vector by
// the time all the modules have gone away, we just leak it for now. If we decide this
// is a big problem we can introduce a Finalize method that will tear everything down in
// a predictable order.
static ModuleCollection *g_module_collection = NULL;
if (g_module_collection == NULL)
g_module_collection = new ModuleCollection();
return *g_module_collection;
}
Mutex *
Module::GetAllocationModuleCollectionMutex()
{
// NOTE: The mutex below must be leaked since the global module list in
// the ModuleList class will get torn at some point, and we can't know
// if it will tear itself down before the "g_module_collection_mutex" below
// will. So we leak a Mutex object below to safeguard against that
static Mutex *g_module_collection_mutex = NULL;
if (g_module_collection_mutex == NULL)
g_module_collection_mutex = new Mutex (Mutex::eMutexTypeRecursive); // NOTE: known leak
return g_module_collection_mutex;
}
size_t
Module::GetNumberAllocatedModules ()
{
Mutex::Locker locker (GetAllocationModuleCollectionMutex());
return GetModuleCollection().size();
}
Module *
Module::GetAllocatedModuleAtIndex (size_t idx)
{
Mutex::Locker locker (GetAllocationModuleCollectionMutex());
ModuleCollection &modules = GetModuleCollection();
if (idx < modules.size())
return modules[idx];
return NULL;
}
#if 0
// These functions help us to determine if modules are still loaded, yet don't require that
// you have a command interpreter and can easily be called from an external debugger.
namespace lldb {
void
ClearModuleInfo (void)
{
const bool mandatory = true;
ModuleList::RemoveOrphanSharedModules(mandatory);
}
void
DumpModuleInfo (void)
{
Mutex::Locker locker (Module::GetAllocationModuleCollectionMutex());
ModuleCollection &modules = GetModuleCollection();
const size_t count = modules.size();
printf ("%s: %llu modules:\n", __PRETTY_FUNCTION__, (uint64_t)count);
for (size_t i=0; i<count; ++i)
{
StreamString strm;
Module *module = modules[i];
const bool in_shared_module_list = ModuleList::ModuleIsInCache (module);
module->GetDescription(&strm, eDescriptionLevelFull);
printf ("%p: shared = %i, ref_count = %3u, module = %s\n",
module,
in_shared_module_list,
(uint32_t)module->use_count(),
strm.GetString().c_str());
}
}
}
#endif
Module::Module (const ModuleSpec &module_spec) :
m_mutex (Mutex::eMutexTypeRecursive),
m_mod_time (module_spec.GetFileSpec().GetModificationTime()),
m_arch (module_spec.GetArchitecture()),
m_uuid (),
m_file (module_spec.GetFileSpec()),
m_platform_file(module_spec.GetPlatformFileSpec()),
m_symfile_spec (module_spec.GetSymbolFileSpec()),
m_object_name (module_spec.GetObjectName()),
m_object_offset (module_spec.GetObjectOffset()),
m_objfile_sp (),
m_symfile_ap (),
m_ast (),
m_source_mappings (),
m_did_load_objfile (false),
m_did_load_symbol_vendor (false),
m_did_parse_uuid (false),
m_did_init_ast (false),
m_is_dynamic_loader_module (false),
m_file_has_changed (false),
m_first_file_changed_log (false)
{
// Scope for locker below...
{
Mutex::Locker locker (GetAllocationModuleCollectionMutex());
GetModuleCollection().push_back(this);
}
LogSP log(lldb_private::GetLogIfAnyCategoriesSet (LIBLLDB_LOG_OBJECT|LIBLLDB_LOG_MODULES));
if (log)
log->Printf ("%p Module::Module((%s) '%s/%s%s%s%s')",
this,
m_arch.GetArchitectureName(),
m_file.GetDirectory().AsCString(""),
m_file.GetFilename().AsCString(""),
m_object_name.IsEmpty() ? "" : "(",
m_object_name.IsEmpty() ? "" : m_object_name.AsCString(""),
m_object_name.IsEmpty() ? "" : ")");
}
Module::Module(const FileSpec& file_spec,
const ArchSpec& arch,
const ConstString *object_name,
off_t object_offset) :
m_mutex (Mutex::eMutexTypeRecursive),
m_mod_time (file_spec.GetModificationTime()),
m_arch (arch),
m_uuid (),
m_file (file_spec),
m_platform_file(),
m_symfile_spec (),
m_object_name (),
m_object_offset (object_offset),
m_objfile_sp (),
m_symfile_ap (),
m_ast (),
m_source_mappings (),
m_did_load_objfile (false),
m_did_load_symbol_vendor (false),
m_did_parse_uuid (false),
m_did_init_ast (false),
m_is_dynamic_loader_module (false),
m_file_has_changed (false),
m_first_file_changed_log (false)
{
// Scope for locker below...
{
Mutex::Locker locker (GetAllocationModuleCollectionMutex());
GetModuleCollection().push_back(this);
}
if (object_name)
m_object_name = *object_name;
LogSP log(lldb_private::GetLogIfAnyCategoriesSet (LIBLLDB_LOG_OBJECT|LIBLLDB_LOG_MODULES));
if (log)
log->Printf ("%p Module::Module((%s) '%s/%s%s%s%s')",
this,
m_arch.GetArchitectureName(),
m_file.GetDirectory().AsCString(""),
m_file.GetFilename().AsCString(""),
m_object_name.IsEmpty() ? "" : "(",
m_object_name.IsEmpty() ? "" : m_object_name.AsCString(""),
m_object_name.IsEmpty() ? "" : ")");
}
Module::~Module()
{
// Scope for locker below...
{
Mutex::Locker locker (GetAllocationModuleCollectionMutex());
ModuleCollection &modules = GetModuleCollection();
ModuleCollection::iterator end = modules.end();
ModuleCollection::iterator pos = std::find(modules.begin(), end, this);
assert (pos != end);
modules.erase(pos);
}
LogSP log(lldb_private::GetLogIfAnyCategoriesSet (LIBLLDB_LOG_OBJECT|LIBLLDB_LOG_MODULES));
if (log)
log->Printf ("%p Module::~Module((%s) '%s/%s%s%s%s')",
this,
m_arch.GetArchitectureName(),
m_file.GetDirectory().AsCString(""),
m_file.GetFilename().AsCString(""),
m_object_name.IsEmpty() ? "" : "(",
m_object_name.IsEmpty() ? "" : m_object_name.AsCString(""),
m_object_name.IsEmpty() ? "" : ")");
// Release any auto pointers before we start tearing down our member
// variables since the object file and symbol files might need to make
// function calls back into this module object. The ordering is important
// here because symbol files can require the module object file. So we tear
// down the symbol file first, then the object file.
m_symfile_ap.reset();
m_objfile_sp.reset();
}
ObjectFile *
Module::GetMemoryObjectFile (const lldb::ProcessSP &process_sp, lldb::addr_t header_addr, Error &error)
{
if (m_objfile_sp)
{
error.SetErrorString ("object file already exists");
}
else
{
Mutex::Locker locker (m_mutex);
if (process_sp)
{
m_did_load_objfile = true;
std::auto_ptr<DataBufferHeap> data_ap (new DataBufferHeap (512, 0));
Error readmem_error;
const size_t bytes_read = process_sp->ReadMemory (header_addr,
data_ap->GetBytes(),
data_ap->GetByteSize(),
readmem_error);
if (bytes_read == 512)
{
DataBufferSP data_sp(data_ap.release());
m_objfile_sp = ObjectFile::FindPlugin(shared_from_this(), process_sp, header_addr, data_sp);
if (m_objfile_sp)
{
StreamString s;
s.Printf("0x%16.16llx", header_addr);
m_object_name.SetCString (s.GetData());
// Once we get the object file, update our module with the object file's
// architecture since it might differ in vendor/os if some parts were
// unknown.
m_objfile_sp->GetArchitecture (m_arch);
}
else
{
error.SetErrorString ("unable to find suitable object file plug-in");
}
}
else
{
error.SetErrorStringWithFormat ("unable to read header from memory: %s", readmem_error.AsCString());
}
}
else
{
error.SetErrorString ("invalid process");
}
}
return m_objfile_sp.get();
}
const lldb_private::UUID&
Module::GetUUID()
{
Mutex::Locker locker (m_mutex);
if (m_did_parse_uuid == false)
{
ObjectFile * obj_file = GetObjectFile ();
if (obj_file != NULL)
{
obj_file->GetUUID(&m_uuid);
m_did_parse_uuid = true;
}
}
return m_uuid;
}
ClangASTContext &
Module::GetClangASTContext ()
{
Mutex::Locker locker (m_mutex);
if (m_did_init_ast == false)
{
ObjectFile * objfile = GetObjectFile();
ArchSpec object_arch;
if (objfile && objfile->GetArchitecture(object_arch))
{
m_did_init_ast = true;
// LLVM wants this to be set to iOS or MacOSX; if we're working on
// a bare-boards type image, change the triple for llvm's benefit.
if (object_arch.GetTriple().getVendor() == llvm::Triple::Apple
&& object_arch.GetTriple().getOS() == llvm::Triple::UnknownOS)
{
if (object_arch.GetTriple().getArch() == llvm::Triple::arm ||
object_arch.GetTriple().getArch() == llvm::Triple::thumb)
{
object_arch.GetTriple().setOS(llvm::Triple::IOS);
}
else
{
object_arch.GetTriple().setOS(llvm::Triple::MacOSX);
}
}
m_ast.SetArchitecture (object_arch);
}
}
return m_ast;
}
void
Module::ParseAllDebugSymbols()
{
Mutex::Locker locker (m_mutex);
uint32_t num_comp_units = GetNumCompileUnits();
if (num_comp_units == 0)
return;
SymbolContext sc;
sc.module_sp = shared_from_this();
uint32_t cu_idx;
SymbolVendor *symbols = GetSymbolVendor ();
for (cu_idx = 0; cu_idx < num_comp_units; cu_idx++)
{
sc.comp_unit = symbols->GetCompileUnitAtIndex(cu_idx).get();
if (sc.comp_unit)
{
sc.function = NULL;
symbols->ParseVariablesForContext(sc);
symbols->ParseCompileUnitFunctions(sc);
uint32_t func_idx;
for (func_idx = 0; (sc.function = sc.comp_unit->GetFunctionAtIndex(func_idx).get()) != NULL; ++func_idx)
{
symbols->ParseFunctionBlocks(sc);
// Parse the variables for this function and all its blocks
symbols->ParseVariablesForContext(sc);
}
// Parse all types for this compile unit
sc.function = NULL;
symbols->ParseTypes(sc);
}
}
}
void
Module::CalculateSymbolContext(SymbolContext* sc)
{
sc->module_sp = shared_from_this();
}
ModuleSP
Module::CalculateSymbolContextModule ()
{
return shared_from_this();
}
void
Module::DumpSymbolContext(Stream *s)
{
s->Printf(", Module{%p}", this);
}
uint32_t
Module::GetNumCompileUnits()
{
Mutex::Locker locker (m_mutex);
Timer scoped_timer(__PRETTY_FUNCTION__, "Module::GetNumCompileUnits (module = %p)", this);
SymbolVendor *symbols = GetSymbolVendor ();
if (symbols)
return symbols->GetNumCompileUnits();
return 0;
}
CompUnitSP
Module::GetCompileUnitAtIndex (uint32_t index)
{
Mutex::Locker locker (m_mutex);
uint32_t num_comp_units = GetNumCompileUnits ();
CompUnitSP cu_sp;
if (index < num_comp_units)
{
SymbolVendor *symbols = GetSymbolVendor ();
if (symbols)
cu_sp = symbols->GetCompileUnitAtIndex(index);
}
return cu_sp;
}
bool
Module::ResolveFileAddress (lldb::addr_t vm_addr, Address& so_addr)
{
Mutex::Locker locker (m_mutex);
Timer scoped_timer(__PRETTY_FUNCTION__, "Module::ResolveFileAddress (vm_addr = 0x%llx)", vm_addr);
ObjectFile* ofile = GetObjectFile();
if (ofile)
return so_addr.ResolveAddressUsingFileSections(vm_addr, ofile->GetSectionList());
return false;
}
uint32_t
Module::ResolveSymbolContextForAddress (const Address& so_addr, uint32_t resolve_scope, SymbolContext& sc)
{
Mutex::Locker locker (m_mutex);
uint32_t resolved_flags = 0;
// Clear the result symbol context in case we don't find anything
sc.Clear();
// Get the section from the section/offset address.
SectionSP section_sp (so_addr.GetSection());
// Make sure the section matches this module before we try and match anything
if (section_sp && section_sp->GetModule().get() == this)
{
// If the section offset based address resolved itself, then this
// is the right module.
sc.module_sp = shared_from_this();
resolved_flags |= eSymbolContextModule;
// Resolve the compile unit, function, block, line table or line
// entry if requested.
if (resolve_scope & eSymbolContextCompUnit ||
resolve_scope & eSymbolContextFunction ||
resolve_scope & eSymbolContextBlock ||
resolve_scope & eSymbolContextLineEntry )
{
SymbolVendor *symbols = GetSymbolVendor ();
if (symbols)
resolved_flags |= symbols->ResolveSymbolContext (so_addr, resolve_scope, sc);
}
// Resolve the symbol if requested, but don't re-look it up if we've already found it.
if (resolve_scope & eSymbolContextSymbol && !(resolved_flags & eSymbolContextSymbol))
{
ObjectFile* ofile = GetObjectFile();
if (ofile)
{
Symtab *symtab = ofile->GetSymtab();
if (symtab)
{
if (so_addr.IsSectionOffset())
{
sc.symbol = symtab->FindSymbolContainingFileAddress(so_addr.GetFileAddress());
if (sc.symbol)
resolved_flags |= eSymbolContextSymbol;
}
}
}
}
}
return resolved_flags;
}
uint32_t
Module::ResolveSymbolContextForFilePath
(
const char *file_path,
uint32_t line,
bool check_inlines,
uint32_t resolve_scope,
SymbolContextList& sc_list
)
{
FileSpec file_spec(file_path, false);
return ResolveSymbolContextsForFileSpec (file_spec, line, check_inlines, resolve_scope, sc_list);
}
uint32_t
Module::ResolveSymbolContextsForFileSpec (const FileSpec &file_spec, uint32_t line, bool check_inlines, uint32_t resolve_scope, SymbolContextList& sc_list)
{
Mutex::Locker locker (m_mutex);
Timer scoped_timer(__PRETTY_FUNCTION__,
"Module::ResolveSymbolContextForFilePath (%s%s%s:%u, check_inlines = %s, resolve_scope = 0x%8.8x)",
file_spec.GetDirectory().AsCString(""),
file_spec.GetDirectory() ? "/" : "",
file_spec.GetFilename().AsCString(""),
line,
check_inlines ? "yes" : "no",
resolve_scope);
const uint32_t initial_count = sc_list.GetSize();
SymbolVendor *symbols = GetSymbolVendor ();
if (symbols)
symbols->ResolveSymbolContext (file_spec, line, check_inlines, resolve_scope, sc_list);
return sc_list.GetSize() - initial_count;
}
uint32_t
Module::FindGlobalVariables(const ConstString &name, const ClangNamespaceDecl *namespace_decl, bool append, uint32_t max_matches, VariableList& variables)
{
SymbolVendor *symbols = GetSymbolVendor ();
if (symbols)
return symbols->FindGlobalVariables(name, namespace_decl, append, max_matches, variables);
return 0;
}
uint32_t
Module::FindGlobalVariables(const RegularExpression& regex, bool append, uint32_t max_matches, VariableList& variables)
{
SymbolVendor *symbols = GetSymbolVendor ();
if (symbols)
return symbols->FindGlobalVariables(regex, append, max_matches, variables);
return 0;
}
uint32_t
Module::FindCompileUnits (const FileSpec &path,
bool append,
SymbolContextList &sc_list)
{
if (!append)
sc_list.Clear();
const uint32_t start_size = sc_list.GetSize();
const uint32_t num_compile_units = GetNumCompileUnits();
SymbolContext sc;
sc.module_sp = shared_from_this();
const bool compare_directory = path.GetDirectory();
for (uint32_t i=0; i<num_compile_units; ++i)
{
sc.comp_unit = GetCompileUnitAtIndex(i).get();
if (sc.comp_unit)
{
if (FileSpec::Equal (*sc.comp_unit, path, compare_directory))
sc_list.Append(sc);
}
}
return sc_list.GetSize() - start_size;
}
uint32_t
Module::FindFunctions (const ConstString &name,
const ClangNamespaceDecl *namespace_decl,
uint32_t name_type_mask,
bool include_symbols,
bool include_inlines,
bool append,
SymbolContextList& sc_list)
{
if (!append)
sc_list.Clear();
const uint32_t start_size = sc_list.GetSize();
// Find all the functions (not symbols, but debug information functions...
SymbolVendor *symbols = GetSymbolVendor ();
if (symbols)
symbols->FindFunctions(name, namespace_decl, name_type_mask, include_inlines, append, sc_list);
// Now check our symbol table for symbols that are code symbols if requested
if (include_symbols)
{
ObjectFile *objfile = GetObjectFile();
if (objfile)
{
Symtab *symtab = objfile->GetSymtab();
if (symtab)
{
std::vector<uint32_t> symbol_indexes;
symtab->FindAllSymbolsWithNameAndType (name, eSymbolTypeCode, Symtab::eDebugAny, Symtab::eVisibilityAny, symbol_indexes);
const uint32_t num_matches = symbol_indexes.size();
if (num_matches)
{
const bool merge_symbol_into_function = true;
SymbolContext sc(this);
for (uint32_t i=0; i<num_matches; i++)
{
sc.symbol = symtab->SymbolAtIndex(symbol_indexes[i]);
sc_list.AppendIfUnique (sc, merge_symbol_into_function);
}
}
}
}
}
return sc_list.GetSize() - start_size;
}
uint32_t
Module::FindFunctions (const RegularExpression& regex,
bool include_symbols,
bool include_inlines,
bool append,
SymbolContextList& sc_list)
{
if (!append)
sc_list.Clear();
const uint32_t start_size = sc_list.GetSize();
SymbolVendor *symbols = GetSymbolVendor ();
if (symbols)
symbols->FindFunctions(regex, include_inlines, append, sc_list);
// Now check our symbol table for symbols that are code symbols if requested
if (include_symbols)
{
ObjectFile *objfile = GetObjectFile();
if (objfile)
{
Symtab *symtab = objfile->GetSymtab();
if (symtab)
{
std::vector<uint32_t> symbol_indexes;
symtab->AppendSymbolIndexesMatchingRegExAndType (regex, eSymbolTypeCode, Symtab::eDebugAny, Symtab::eVisibilityAny, symbol_indexes);
const uint32_t num_matches = symbol_indexes.size();
if (num_matches)
{
const bool merge_symbol_into_function = true;
SymbolContext sc(this);
for (uint32_t i=0; i<num_matches; i++)
{
sc.symbol = symtab->SymbolAtIndex(symbol_indexes[i]);
sc_list.AppendIfUnique (sc, merge_symbol_into_function);
}
}
}
}
}
return sc_list.GetSize() - start_size;
}
uint32_t
Module::FindTypes_Impl (const SymbolContext& sc,
const ConstString &name,
const ClangNamespaceDecl *namespace_decl,
bool append,
uint32_t max_matches,
TypeList& types)
{
Timer scoped_timer(__PRETTY_FUNCTION__, __PRETTY_FUNCTION__);
if (sc.module_sp.get() == NULL || sc.module_sp.get() == this)
{
SymbolVendor *symbols = GetSymbolVendor ();
if (symbols)
return symbols->FindTypes(sc, name, namespace_decl, append, max_matches, types);
}
return 0;
}
uint32_t
Module::FindTypesInNamespace (const SymbolContext& sc,
const ConstString &type_name,
const ClangNamespaceDecl *namespace_decl,
uint32_t max_matches,
TypeList& type_list)
{
const bool append = true;
return FindTypes_Impl(sc, type_name, namespace_decl, append, max_matches, type_list);
}
uint32_t
Module::FindTypes (const SymbolContext& sc,
const ConstString &name,
bool exact_match,
uint32_t max_matches,
TypeList& types)
{
uint32_t num_matches = 0;
const char *type_name_cstr = name.GetCString();
std::string type_scope;
std::string type_basename;
const bool append = true;
TypeClass type_class = eTypeClassAny;
if (Type::GetTypeScopeAndBasename (type_name_cstr, type_scope, type_basename, type_class))
{
// Check if "name" starts with "::" which means the qualified type starts
// from the root namespace and implies and exact match. The typenames we
// get back from clang do not start with "::" so we need to strip this off
// in order to get the qualfied names to match
if (type_scope.size() >= 2 && type_scope[0] == ':' && type_scope[1] == ':')
{
type_scope.erase(0,2);
exact_match = true;
}
ConstString type_basename_const_str (type_basename.c_str());
if (FindTypes_Impl(sc, type_basename_const_str, NULL, append, max_matches, types))
{
types.RemoveMismatchedTypes (type_scope, type_basename, type_class, exact_match);
num_matches = types.GetSize();
}
}
else
{
// The type is not in a namespace/class scope, just search for it by basename
if (type_class != eTypeClassAny)
{
// The "type_name_cstr" will have been modified if we have a valid type class
// prefix (like "struct", "class", "union", "typedef" etc).
num_matches = FindTypes_Impl(sc, ConstString(type_name_cstr), NULL, append, max_matches, types);
types.RemoveMismatchedTypes (type_class);
num_matches = types.GetSize();
}
else
{
num_matches = FindTypes_Impl(sc, name, NULL, append, max_matches, types);
}
}
return num_matches;
}
//uint32_t
//Module::FindTypes(const SymbolContext& sc, const RegularExpression& regex, bool append, uint32_t max_matches, Type::Encoding encoding, const char *udt_name, TypeList& types)
//{
// Timer scoped_timer(__PRETTY_FUNCTION__);
// SymbolVendor *symbols = GetSymbolVendor ();
// if (symbols)
// return symbols->FindTypes(sc, regex, append, max_matches, encoding, udt_name, types);
// return 0;
//
//}
SymbolVendor*
Module::GetSymbolVendor (bool can_create)
{
Mutex::Locker locker (m_mutex);
if (m_did_load_symbol_vendor == false && can_create)
{
ObjectFile *obj_file = GetObjectFile ();
if (obj_file != NULL)
{
Timer scoped_timer(__PRETTY_FUNCTION__, __PRETTY_FUNCTION__);
m_symfile_ap.reset(SymbolVendor::FindPlugin(shared_from_this()));
m_did_load_symbol_vendor = true;
}
}
return m_symfile_ap.get();
}
void
Module::SetFileSpecAndObjectName (const FileSpec &file, const ConstString &object_name)
{
// Container objects whose paths do not specify a file directly can call
// this function to correct the file and object names.
m_file = file;
m_mod_time = file.GetModificationTime();
m_object_name = object_name;
}
const ArchSpec&
Module::GetArchitecture () const
{
return m_arch;
}
void
Module::GetDescription (Stream *s, lldb::DescriptionLevel level)
{
Mutex::Locker locker (m_mutex);
if (level >= eDescriptionLevelFull)
{
if (m_arch.IsValid())
s->Printf("(%s) ", m_arch.GetArchitectureName());
}
if (level == eDescriptionLevelBrief)
{
const char *filename = m_file.GetFilename().GetCString();
if (filename)
s->PutCString (filename);
}
else
{
char path[PATH_MAX];
if (m_file.GetPath(path, sizeof(path)))
s->PutCString(path);
}
const char *object_name = m_object_name.GetCString();
if (object_name)
s->Printf("(%s)", object_name);
}
void
Module::ReportError (const char *format, ...)
{
if (format && format[0])
{
StreamString strm;
strm.PutCString("error: ");
GetDescription(&strm, lldb::eDescriptionLevelBrief);
strm.PutChar (' ');
va_list args;
va_start (args, format);
strm.PrintfVarArg(format, args);
va_end (args);
const int format_len = strlen(format);
if (format_len > 0)
{
const char last_char = format[format_len-1];
if (last_char != '\n' || last_char != '\r')
strm.EOL();
}
Host::SystemLog (Host::eSystemLogError, "%s", strm.GetString().c_str());
}
}
bool
Module::FileHasChanged () const
{
if (m_file_has_changed == false)
m_file_has_changed = (m_file.GetModificationTime() != m_mod_time);
return m_file_has_changed;
}
void
Module::ReportErrorIfModifyDetected (const char *format, ...)
{
if (m_first_file_changed_log == false)
{
if (FileHasChanged ())
{
m_first_file_changed_log = true;
if (format)
{
StreamString strm;
strm.PutCString("error: the object file ");
GetDescription(&strm, lldb::eDescriptionLevelFull);
strm.PutCString (" has been modified\n");
va_list args;
va_start (args, format);
strm.PrintfVarArg(format, args);
va_end (args);
const int format_len = strlen(format);
if (format_len > 0)
{
const char last_char = format[format_len-1];
if (last_char != '\n' || last_char != '\r')
strm.EOL();
}
strm.PutCString("The debug session should be aborted as the original debug information has been overwritten.\n");
Host::SystemLog (Host::eSystemLogError, "%s", strm.GetString().c_str());
}
}
}
}
void
Module::ReportWarning (const char *format, ...)
{
if (format && format[0])
{
StreamString strm;
strm.PutCString("warning: ");
GetDescription(&strm, lldb::eDescriptionLevelFull);
strm.PutChar (' ');
va_list args;
va_start (args, format);
strm.PrintfVarArg(format, args);
va_end (args);
const int format_len = strlen(format);
if (format_len > 0)
{
const char last_char = format[format_len-1];
if (last_char != '\n' || last_char != '\r')
strm.EOL();
}
Host::SystemLog (Host::eSystemLogWarning, "%s", strm.GetString().c_str());
}
}
void
Module::LogMessage (Log *log, const char *format, ...)
{
if (log)
{
StreamString log_message;
GetDescription(&log_message, lldb::eDescriptionLevelFull);
log_message.PutCString (": ");
va_list args;
va_start (args, format);
log_message.PrintfVarArg (format, args);
va_end (args);
log->PutCString(log_message.GetString().c_str());
}
}
void
Module::LogMessageVerboseBacktrace (Log *log, const char *format, ...)
{
if (log)
{
StreamString log_message;
GetDescription(&log_message, lldb::eDescriptionLevelFull);
log_message.PutCString (": ");
va_list args;
va_start (args, format);
log_message.PrintfVarArg (format, args);
va_end (args);
if (log->GetVerbose())
Host::Backtrace (log_message, 1024);
log->PutCString(log_message.GetString().c_str());
}
}
void
Module::Dump(Stream *s)
{
Mutex::Locker locker (m_mutex);
//s->Printf("%.*p: ", (int)sizeof(void*) * 2, this);
s->Indent();
s->Printf("Module %s/%s%s%s%s\n",
m_file.GetDirectory().AsCString(),
m_file.GetFilename().AsCString(),
m_object_name ? "(" : "",
m_object_name ? m_object_name.GetCString() : "",
m_object_name ? ")" : "");
s->IndentMore();
ObjectFile *objfile = GetObjectFile ();
if (objfile)
objfile->Dump(s);
SymbolVendor *symbols = GetSymbolVendor ();
if (symbols)
symbols->Dump(s);
s->IndentLess();
}
TypeList*
Module::GetTypeList ()
{
SymbolVendor *symbols = GetSymbolVendor ();
if (symbols)
return &symbols->GetTypeList();
return NULL;
}
const ConstString &
Module::GetObjectName() const
{
return m_object_name;
}
ObjectFile *
Module::GetObjectFile()
{
Mutex::Locker locker (m_mutex);
if (m_did_load_objfile == false)
{
m_did_load_objfile = true;
Timer scoped_timer(__PRETTY_FUNCTION__,
"Module::GetObjectFile () module = %s", GetFileSpec().GetFilename().AsCString(""));
DataBufferSP file_data_sp;
m_objfile_sp = ObjectFile::FindPlugin (shared_from_this(),
&m_file,
m_object_offset,
m_file.GetByteSize(),
file_data_sp);
if (m_objfile_sp)
{
// Once we get the object file, update our module with the object file's
// architecture since it might differ in vendor/os if some parts were
// unknown.
m_objfile_sp->GetArchitecture (m_arch);
}
}
return m_objfile_sp.get();
}
const Symbol *
Module::FindFirstSymbolWithNameAndType (const ConstString &name, SymbolType symbol_type)
{
Timer scoped_timer(__PRETTY_FUNCTION__,
"Module::FindFirstSymbolWithNameAndType (name = %s, type = %i)",
name.AsCString(),
symbol_type);
ObjectFile *objfile = GetObjectFile();
if (objfile)
{
Symtab *symtab = objfile->GetSymtab();
if (symtab)
return symtab->FindFirstSymbolWithNameAndType (name, symbol_type, Symtab::eDebugAny, Symtab::eVisibilityAny);
}
return NULL;
}
void
Module::SymbolIndicesToSymbolContextList (Symtab *symtab, std::vector<uint32_t> &symbol_indexes, SymbolContextList &sc_list)
{
// No need to protect this call using m_mutex all other method calls are
// already thread safe.
size_t num_indices = symbol_indexes.size();
if (num_indices > 0)
{
SymbolContext sc;
CalculateSymbolContext (&sc);
for (size_t i = 0; i < num_indices; i++)
{
sc.symbol = symtab->SymbolAtIndex (symbol_indexes[i]);
if (sc.symbol)
sc_list.Append (sc);
}
}
}
size_t
Module::FindSymbolsWithNameAndType (const ConstString &name, SymbolType symbol_type, SymbolContextList &sc_list)
{
// No need to protect this call using m_mutex all other method calls are
// already thread safe.
Timer scoped_timer(__PRETTY_FUNCTION__,
"Module::FindSymbolsWithNameAndType (name = %s, type = %i)",
name.AsCString(),
symbol_type);
const size_t initial_size = sc_list.GetSize();
ObjectFile *objfile = GetObjectFile ();
if (objfile)
{
Symtab *symtab = objfile->GetSymtab();
if (symtab)
{
std::vector<uint32_t> symbol_indexes;
symtab->FindAllSymbolsWithNameAndType (name, symbol_type, symbol_indexes);
SymbolIndicesToSymbolContextList (symtab, symbol_indexes, sc_list);
}
}
return sc_list.GetSize() - initial_size;
}
size_t
Module::FindSymbolsMatchingRegExAndType (const RegularExpression &regex, SymbolType symbol_type, SymbolContextList &sc_list)
{
// No need to protect this call using m_mutex all other method calls are
// already thread safe.
Timer scoped_timer(__PRETTY_FUNCTION__,
"Module::FindSymbolsMatchingRegExAndType (regex = %s, type = %i)",
regex.GetText(),
symbol_type);
const size_t initial_size = sc_list.GetSize();
ObjectFile *objfile = GetObjectFile ();
if (objfile)
{
Symtab *symtab = objfile->GetSymtab();
if (symtab)
{
std::vector<uint32_t> symbol_indexes;
symtab->FindAllSymbolsMatchingRexExAndType (regex, symbol_type, Symtab::eDebugAny, Symtab::eVisibilityAny, symbol_indexes);
SymbolIndicesToSymbolContextList (symtab, symbol_indexes, sc_list);
}
}
return sc_list.GetSize() - initial_size;
}
const TimeValue &
Module::GetModificationTime () const
{
return m_mod_time;
}
bool
Module::IsExecutable ()
{
if (GetObjectFile() == NULL)
return false;
else
return GetObjectFile()->IsExecutable();
}
bool
Module::IsLoadedInTarget (Target *target)
{
ObjectFile *obj_file = GetObjectFile();
if (obj_file)
{
SectionList *sections = obj_file->GetSectionList();
if (sections != NULL)
{
size_t num_sections = sections->GetSize();
for (size_t sect_idx = 0; sect_idx < num_sections; sect_idx++)
{
SectionSP section_sp = sections->GetSectionAtIndex(sect_idx);
if (section_sp->GetLoadBaseAddress(target) != LLDB_INVALID_ADDRESS)
{
return true;
}
}
}
}
return false;
}
bool
Module::SetArchitecture (const ArchSpec &new_arch)
{
if (!m_arch.IsValid())
{
m_arch = new_arch;
return true;
}
return m_arch == new_arch;
}
bool
Module::SetLoadAddress (Target &target, lldb::addr_t offset, bool &changed)
{
size_t num_loaded_sections = 0;
ObjectFile *objfile = GetObjectFile();
if (objfile)
{
SectionList *section_list = objfile->GetSectionList ();
if (section_list)
{
const size_t num_sections = section_list->GetSize();
size_t sect_idx = 0;
for (sect_idx = 0; sect_idx < num_sections; ++sect_idx)
{
// Iterate through the object file sections to find the
// first section that starts of file offset zero and that
// has bytes in the file...
SectionSP section_sp (section_list->GetSectionAtIndex (sect_idx));
// Only load non-thread specific sections when given a slide
if (section_sp && !section_sp->IsThreadSpecific())
{
if (target.GetSectionLoadList().SetSectionLoadAddress (section_sp, section_sp->GetFileAddress() + offset))
++num_loaded_sections;
}
}
}
}
changed = num_loaded_sections > 0;
return num_loaded_sections > 0;
}
bool
Module::MatchesModuleSpec (const ModuleSpec &module_ref)
{
const UUID &uuid = module_ref.GetUUID();
if (uuid.IsValid())
{
// If the UUID matches, then nothing more needs to match...
if (uuid == GetUUID())
return true;
else
return false;
}
const FileSpec &file_spec = module_ref.GetFileSpec();
if (file_spec)
{
if (!FileSpec::Equal (file_spec, m_file, file_spec.GetDirectory()))
return false;
}
const FileSpec &platform_file_spec = module_ref.GetPlatformFileSpec();
if (platform_file_spec)
{
if (!FileSpec::Equal (platform_file_spec, GetPlatformFileSpec (), platform_file_spec.GetDirectory()))
return false;
}
const ArchSpec &arch = module_ref.GetArchitecture();
if (arch.IsValid())
{
if (m_arch != arch)
return false;
}
const ConstString &object_name = module_ref.GetObjectName();
if (object_name)
{
if (object_name != GetObjectName())
return false;
}
return true;
}
bool
Module::FindSourceFile (const FileSpec &orig_spec, FileSpec &new_spec) const
{
Mutex::Locker locker (m_mutex);
return m_source_mappings.FindFile (orig_spec, new_spec);
}
bool
Module::RemapSourceFile (const char *path, std::string &new_path) const
{
Mutex::Locker locker (m_mutex);
return m_source_mappings.RemapPath(path, new_path);
}
uint32_t
Module::GetVersion (uint32_t *versions, uint32_t num_versions)
{
ObjectFile *obj_file = GetObjectFile();
if (obj_file)
return obj_file->GetVersion (versions, num_versions);
if (versions && num_versions)
{
for (uint32_t i=0; i<num_versions; ++i)
versions[i] = UINT32_MAX;
}
return 0;
}
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