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llvm-capstone/lldb/source/Core/Module.cpp
Greg Clayton e1cd1be6d6 Switching back to using std::tr1::shared_ptr. We originally switched away 
due to RTTI worries since llvm and clang don't use RTTI, but I was able to 
switch back with no issues as far as I can tell. Once the RTTI issue wasn't
an issue, we were looking for a way to properly track weak pointers to objects
to solve some of the threading issues we have been running into which naturally
led us back to std::tr1::weak_ptr. We also wanted the ability to make a shared 
pointer from just a pointer, which is also easily solved using the 
std::tr1::enable_shared_from_this class. 

The main reason for this move back is so we can start properly having weak
references to objects. Currently a lldb_private::Thread class has a refrence
to its parent lldb_private::Process. This doesn't work well when we now hand
out a SBThread object that contains a shared pointer to a lldb_private::Thread
as this SBThread can be held onto by external clients and if they end up
using one of these objects we can easily crash.

So the next task is to start adopting std::tr1::weak_ptr where ever it makes
sense which we can do with lldb_private::Debugger, lldb_private::Target,
lldb_private::Process, lldb_private::Thread, lldb_private::StackFrame, and
many more objects now that they are no longer using intrusive ref counted
pointer objects (you can't do std::tr1::weak_ptr functionality with intrusive
pointers).

llvm-svn: 149207
2012-01-29 20:56:30 +00:00

980 lines
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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/Log.h"
#include "lldb/Core/ModuleList.h"
#include "lldb/Core/RegularExpression.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/ObjectFile.h"
#include "lldb/Symbol/SymbolContext.h"
#include "lldb/Symbol/SymbolVendor.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)
{
ModuleList::RemoveOrphanSharedModules();
}
void
DumpModuleInfo (void)
{
Mutex::Locker locker (Module::GetAllocationModuleCollectionMutex());
ModuleCollection &modules = GetModuleCollection();
const size_t count = modules.size();
printf ("%s: %zu modules:\n", __PRETTY_FUNCTION__, 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 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_object_name (),
m_object_offset (object_offset),
m_objfile_sp (),
m_symfile_ap (),
m_ast (),
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_was_modified (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::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT));
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);
if (pos != end)
modules.erase(pos);
}
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT));
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();
}
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;
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();
}
Module *
Module::CalculateSymbolContextModule ()
{
return 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.
const Section *section = so_addr.GetSection();
// Make sure the section matches this module before we try and match anything
if (section && section->GetModule() == 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 (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 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, 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 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, 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;
}
// depending on implementation details, type lookup might fail because of
// embedded spurious namespace:: prefixes. this call strips them, paying
// attention to the fact that a type might have namespace'd type names as
// arguments to templates, and those must not be stripped off
static const char*
StripTypeName(const char* name_cstr)
{
// Protect against null c string.
if (!name_cstr)
return name_cstr;
const char* skip_namespace = strstr(name_cstr, "::");
const char* template_arg_char = strchr(name_cstr, '<');
while (skip_namespace != NULL)
{
if (template_arg_char != NULL &&
skip_namespace > template_arg_char) // but namespace'd template arguments are still good to go
break;
name_cstr = skip_namespace+2;
skip_namespace = strstr(name_cstr, "::");
}
return name_cstr;
}
uint32_t
Module::FindTypes (const SymbolContext& sc, const ConstString &name, const ClangNamespaceDecl *namespace_decl, bool append, uint32_t max_matches, TypeList& types)
{
uint32_t retval = FindTypes_Impl(sc, name, namespace_decl, append, max_matches, types);
if (retval == 0)
{
const char *orig_name = name.GetCString();
const char *stripped = StripTypeName(orig_name);
// Only do this lookup if StripTypeName has stripped the name:
if (stripped != orig_name)
return FindTypes_Impl(sc, ConstString(stripped), namespace_decl, append, max_matches, types);
else
return 0;
}
else
return retval;
}
//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(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());
}
}
void
Module::ReportErrorIfModifyDetected (const char *format, ...)
{
if (!GetModified(true) && GetModified(false))
{
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());
}
}
bool
Module::GetModified (bool use_cached_only)
{
if (m_was_modified == false && use_cached_only == false)
{
TimeValue curr_mod_time (m_file.GetModificationTime());
m_was_modified = curr_mod_time != m_mod_time;
}
return m_was_modified;
}
bool
Module::SetModified (bool b)
{
const bool prev_value = m_was_modified;
m_was_modified = b;
return prev_value;
}
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(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;
}
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