bool
SymbolContext::GetAddressRange (uint32_t scope, AddressRange &range) const
{
if ((scope & eSymbolContextLineEntry) && line_entry.IsValid())
{
range = line_entry.range;
return true;
}
else if ((scope & eSymbolContextFunction) && function != NULL)
{
range = function->GetAddressRange();
return true;
}
else if ((scope & eSymbolContextSymbol) && symbol != NULL && symbol->GetAddressRangePtr())
{
range = *symbol->GetAddressRangePtr();
if (range.GetByteSize() == 0)
{
if (module_sp)
{
ObjectFile *objfile = module_sp->GetObjectFile();
if (objfile)
{
Symtab *symtab = objfile->GetSymtab();
if (symtab)
range.SetByteSize(symtab->CalculateSymbolSize (symbol));
}
}
}
return true;
}
range.Clear();
return false;
}
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;
}
// Find the load address of a symbol
static lldb::addr_t findSymbolAddress( Process *proc, ConstString findName )
{
assert( proc != nullptr );
ModuleSP module = proc->GetTarget().GetExecutableModule();
assert( module.get() != nullptr );
ObjectFile *exe = module->GetObjectFile();
assert( exe != nullptr );
lldb_private::Symtab *symtab = exe->GetSymtab( );
assert( symtab != nullptr );
for ( size_t i = 0; i < symtab->GetNumSymbols( ); i++ )
{
const Symbol* sym = symtab->SymbolAtIndex( i );
assert( sym != nullptr );
const ConstString &symName = sym->GetName( );
if ( ConstString::Compare( findName, symName ) == 0 )
{
Address addr = sym->GetAddress();
return addr.GetLoadAddress( & proc->GetTarget() );
}
}
return LLDB_INVALID_ADDRESS;
}
Symtab *SymbolVendor::GetSymtab() {
ModuleSP module_sp(GetModule());
if (module_sp) {
ObjectFile *objfile = module_sp->GetObjectFile();
if (objfile) {
// Get symbol table from unified section list.
return objfile->GetSymtab();
}
}
return nullptr;
}
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 = GetSP();
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;
}
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;
}
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;
}
size_t
Module::FindSymbolsMatchingRegExAndType (const RegularExpression ®ex, 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;
}
bool
Address::Dump (Stream *s, ExecutionContextScope *exe_scope, DumpStyle style, DumpStyle fallback_style, uint32_t addr_size) const
{
// If the section was NULL, only load address is going to work unless we are
// trying to deref a pointer
SectionSP section_sp (GetSection());
if (!section_sp && style != DumpStyleResolvedPointerDescription)
style = DumpStyleLoadAddress;
ExecutionContext exe_ctx (exe_scope);
Target *target = exe_ctx.GetTargetPtr();
// If addr_byte_size is UINT32_MAX, then determine the correct address
// byte size for the process or default to the size of addr_t
if (addr_size == UINT32_MAX)
{
if (target)
addr_size = target->GetArchitecture().GetAddressByteSize ();
else
addr_size = sizeof(addr_t);
}
Address so_addr;
switch (style)
{
case DumpStyleInvalid:
return false;
case DumpStyleSectionNameOffset:
if (section_sp)
{
section_sp->DumpName(s);
s->Printf (" + %llu", m_offset);
}
else
{
s->Address(m_offset, addr_size);
}
break;
case DumpStyleSectionPointerOffset:
s->Printf("(Section *)%p + ", section_sp.get());
s->Address(m_offset, addr_size);
break;
case DumpStyleModuleWithFileAddress:
if (section_sp)
s->Printf("%s[", section_sp->GetModule()->GetFileSpec().GetFilename().AsCString());
// Fall through
case DumpStyleFileAddress:
{
addr_t file_addr = GetFileAddress();
if (file_addr == LLDB_INVALID_ADDRESS)
{
if (fallback_style != DumpStyleInvalid)
return Dump (s, exe_scope, fallback_style, DumpStyleInvalid, addr_size);
return false;
}
s->Address (file_addr, addr_size);
if (style == DumpStyleModuleWithFileAddress && section_sp)
s->PutChar(']');
}
break;
case DumpStyleLoadAddress:
{
addr_t load_addr = GetLoadAddress (target);
if (load_addr == LLDB_INVALID_ADDRESS)
{
if (fallback_style != DumpStyleInvalid)
return Dump (s, exe_scope, fallback_style, DumpStyleInvalid, addr_size);
return false;
}
s->Address (load_addr, addr_size);
}
break;
case DumpStyleResolvedDescription:
case DumpStyleResolvedDescriptionNoModule:
if (IsSectionOffset())
{
uint32_t pointer_size = 4;
ModuleSP module_sp (GetModule());
if (target)
pointer_size = target->GetArchitecture().GetAddressByteSize();
else if (module_sp)
pointer_size = module_sp->GetArchitecture().GetAddressByteSize();
bool showed_info = false;
if (section_sp)
{
SectionType sect_type = section_sp->GetType();
switch (sect_type)
{
case eSectionTypeData:
if (module_sp)
{
ObjectFile *objfile = module_sp->GetObjectFile();
if (objfile)
{
Symtab *symtab = objfile->GetSymtab();
if (symtab)
{
const addr_t file_Addr = GetFileAddress();
Symbol *symbol = symtab->FindSymbolContainingFileAddress (file_Addr);
if (symbol)
{
const char *symbol_name = symbol->GetName().AsCString();
if (symbol_name)
{
s->PutCString(symbol_name);
addr_t delta = file_Addr - symbol->GetAddress().GetFileAddress();
if (delta)
s->Printf(" + %llu", delta);
showed_info = true;
}
}
}
}
}
break;
case eSectionTypeDataCString:
// Read the C string from memory and display it
showed_info = true;
ReadCStringFromMemory (exe_scope, *this, s);
break;
case eSectionTypeDataCStringPointers:
{
if (ReadAddress (exe_scope, *this, pointer_size, so_addr))
{
#if VERBOSE_OUTPUT
s->PutCString("(char *)");
so_addr.Dump(s, exe_scope, DumpStyleLoadAddress, DumpStyleFileAddress);
s->PutCString(": ");
#endif
showed_info = true;
ReadCStringFromMemory (exe_scope, so_addr, s);
}
}
break;
case eSectionTypeDataObjCMessageRefs:
{
if (ReadAddress (exe_scope, *this, pointer_size, so_addr))
{
if (target && so_addr.IsSectionOffset())
{
SymbolContext func_sc;
target->GetImages().ResolveSymbolContextForAddress (so_addr,
eSymbolContextEverything,
func_sc);
if (func_sc.function || func_sc.symbol)
{
showed_info = true;
#if VERBOSE_OUTPUT
s->PutCString ("(objc_msgref *) -> { (func*)");
so_addr.Dump(s, exe_scope, DumpStyleLoadAddress, DumpStyleFileAddress);
#else
s->PutCString ("{ ");
#endif
Address cstr_addr(*this);
cstr_addr.SetOffset(cstr_addr.GetOffset() + pointer_size);
func_sc.DumpStopContext(s, exe_scope, so_addr, true, true, false);
if (ReadAddress (exe_scope, cstr_addr, pointer_size, so_addr))
{
#if VERBOSE_OUTPUT
s->PutCString("), (char *)");
so_addr.Dump(s, exe_scope, DumpStyleLoadAddress, DumpStyleFileAddress);
s->PutCString(" (");
#else
s->PutCString(", ");
#endif
ReadCStringFromMemory (exe_scope, so_addr, s);
}
#if VERBOSE_OUTPUT
s->PutCString(") }");
#else
s->PutCString(" }");
#endif
}
}
}
}
break;
case eSectionTypeDataObjCCFStrings:
{
Address cfstring_data_addr(*this);
cfstring_data_addr.SetOffset(cfstring_data_addr.GetOffset() + (2 * pointer_size));
if (ReadAddress (exe_scope, cfstring_data_addr, pointer_size, so_addr))
{
#if VERBOSE_OUTPUT
s->PutCString("(CFString *) ");
cfstring_data_addr.Dump(s, exe_scope, DumpStyleLoadAddress, DumpStyleFileAddress);
s->PutCString(" -> @");
#else
s->PutChar('@');
#endif
if (so_addr.Dump(s, exe_scope, DumpStyleResolvedDescription))
showed_info = true;
}
}
break;
case eSectionTypeData4:
// Read the 4 byte data and display it
showed_info = true;
s->PutCString("(uint32_t) ");
DumpUInt (exe_scope, *this, 4, s);
break;
case eSectionTypeData8:
// Read the 8 byte data and display it
showed_info = true;
s->PutCString("(uint64_t) ");
DumpUInt (exe_scope, *this, 8, s);
break;
case eSectionTypeData16:
// Read the 16 byte data and display it
showed_info = true;
s->PutCString("(uint128_t) ");
DumpUInt (exe_scope, *this, 16, s);
break;
case eSectionTypeDataPointers:
// Read the pointer data and display it
{
if (ReadAddress (exe_scope, *this, pointer_size, so_addr))
{
s->PutCString ("(void *)");
so_addr.Dump(s, exe_scope, DumpStyleLoadAddress, DumpStyleFileAddress);
showed_info = true;
if (so_addr.IsSectionOffset())
{
SymbolContext pointer_sc;
if (target)
{
target->GetImages().ResolveSymbolContextForAddress (so_addr,
eSymbolContextEverything,
pointer_sc);
if (pointer_sc.function || pointer_sc.symbol)
{
s->PutCString(": ");
pointer_sc.DumpStopContext(s, exe_scope, so_addr, true, false, false);
}
}
}
}
}
break;
default:
break;
}
}
if (!showed_info)
{
if (module_sp)
{
SymbolContext sc;
module_sp->ResolveSymbolContextForAddress(*this, eSymbolContextEverything, sc);
if (sc.function || sc.symbol)
{
bool show_stop_context = true;
const bool show_module = (style == DumpStyleResolvedDescription);
const bool show_fullpaths = false;
const bool show_inlined_frames = true;
if (sc.function == NULL && sc.symbol != NULL)
{
// If we have just a symbol make sure it is in the right section
if (sc.symbol->ValueIsAddress())
{
if (sc.symbol->GetAddress().GetSection() != GetSection())
{
// don't show the module if the symbol is a trampoline symbol
show_stop_context = false;
}
}
}
if (show_stop_context)
{
// We have a function or a symbol from the same
// sections as this address.
sc.DumpStopContext (s,
exe_scope,
*this,
show_fullpaths,
show_module,
show_inlined_frames);
}
else
{
// We found a symbol but it was in a different
// section so it isn't the symbol we should be
// showing, just show the section name + offset
Dump (s, exe_scope, DumpStyleSectionNameOffset);
}
}
}
}
}
else
{
if (fallback_style != DumpStyleInvalid)
return Dump (s, exe_scope, fallback_style, DumpStyleInvalid, addr_size);
return false;
}
break;
case DumpStyleDetailedSymbolContext:
if (IsSectionOffset())
{
ModuleSP module_sp (GetModule());
if (module_sp)
{
SymbolContext sc;
module_sp->ResolveSymbolContextForAddress(*this, eSymbolContextEverything, sc);
if (sc.symbol)
{
// If we have just a symbol make sure it is in the same section
// as our address. If it isn't, then we might have just found
// the last symbol that came before the address that we are
// looking up that has nothing to do with our address lookup.
if (sc.symbol->ValueIsAddress() && sc.symbol->GetAddress().GetSection() != GetSection())
sc.symbol = NULL;
}
sc.GetDescription(s, eDescriptionLevelBrief, target);
if (sc.block)
{
bool can_create = true;
bool get_parent_variables = true;
bool stop_if_block_is_inlined_function = false;
VariableList variable_list;
sc.block->AppendVariables (can_create,
get_parent_variables,
stop_if_block_is_inlined_function,
&variable_list);
uint32_t num_variables = variable_list.GetSize();
for (uint32_t var_idx = 0; var_idx < num_variables; ++var_idx)
{
Variable *var = variable_list.GetVariableAtIndex (var_idx).get();
if (var && var->LocationIsValidForAddress (*this))
{
s->Indent();
s->Printf (" Variable: id = {0x%8.8llx}, name = \"%s\", type= \"%s\", location =",
var->GetID(),
var->GetName().GetCString(),
var->GetType()->GetName().GetCString());
var->DumpLocationForAddress(s, *this);
s->PutCString(", decl = ");
var->GetDeclaration().DumpStopContext(s, false);
s->EOL();
}
}
}
}
}
else
{
if (fallback_style != DumpStyleInvalid)
return Dump (s, exe_scope, fallback_style, DumpStyleInvalid, addr_size);
return false;
}
break;
case DumpStyleResolvedPointerDescription:
{
Process *process = exe_ctx.GetProcessPtr();
if (process)
{
addr_t load_addr = GetLoadAddress (target);
if (load_addr != LLDB_INVALID_ADDRESS)
{
Error memory_error;
addr_t dereferenced_load_addr = process->ReadPointerFromMemory(load_addr, memory_error);
if (dereferenced_load_addr != LLDB_INVALID_ADDRESS)
{
Address dereferenced_addr;
if (dereferenced_addr.SetLoadAddress(dereferenced_load_addr, target))
{
StreamString strm;
if (dereferenced_addr.Dump (&strm, exe_scope, DumpStyleResolvedDescription, DumpStyleInvalid, addr_size))
{
s->Address (dereferenced_load_addr, addr_size, " -> ", " ");
s->Write(strm.GetData(), strm.GetSize());
return true;
}
}
}
}
}
if (fallback_style != DumpStyleInvalid)
return Dump (s, exe_scope, fallback_style, DumpStyleInvalid, addr_size);
return false;
}
break;
}
return true;
}
