FreeChainXenon/binutils-gdb
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PR 11855

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* script.cc (Script_options::Script_options): Initialize
	symbol_definitions_ and symbol_references_.
	(Script_options::add_symbol_assignment): Update
	symbol_definitions_ and symbol_references_.
	(Script_options::add_symbol_reference): New function.
	(script_symbol): New function.
	* script.h (class Script_options): Add symbol_definitions_ and
	symbol_references_ fields.
	(Script_options::referenced_const_iterator): New type.
	(Script_options::referenced_begin): New function.
	(Script_options::referenced_end): New function.
	(Script_options::is_referenced): New function.
	(Script_options::any_unreferenced): New function.
	* script-c.h (script_symbol): Declare.
	* yyscript.y (exp): Call script_symbol.
	* symtab.cc: Include "script.h".
	(Symbol_table::gc_mark_undef_symbols): Add layout parameter.
	Change all callers.  Check symbols referenced by scripts.
	(Symbol_table::add_undefined_symbols_from_command_line): Add
	layout parameter.  Change all callers.
	(Symbol_table::do_add_undefined_symbols_from_command_line):
	Likewise.  Break out loop body.  Check symbols referenced by
	scripts.
	(Symbol_table::add_undefined_symbol_from_command_line): New
	function broken out of
	do_add_undefined_symbols_from_command_line.
	* symtab.h (class Symbol_table): Update declarations.
	* archive.cc: Include "layout.h".
	(Archive::should_include_member): Add layout parameter.  Change
	all callers.  Check for symbol mentioned in expression.
	* archive.h (class Archive): Update declaration.
	* object.cc (Sized_relobj::do_should_include_member): Add layout
	parameter.
	* object.h (Object::should_include_member): Add layout parameter.
	Change all callers.
	(Object::do_should_include_member): Add layout parameter.
	(class Sized_relobj): Update declaration.
	* dynobj.cc (Sized_dynobj::do_should_include_member): Add layout
	parameter.
	* dynobj.h (class Sized_dynobj): Update declaration.
	* plugin.cc (Sized_pluginobj::do_should_include_member): Add
	layout parameter.
	* plugin.h (class Sized_pluginobj): Update declaration.
This commit is contained in:
Ian Lance Taylor 2010-08-02 13:34:33 +00:00
parent 93d90f466b
commit 88a4108bde
16 changed files with 255 additions and 76 deletions
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34
gold/script.h
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@ -423,6 +423,10 @@ class Script_options
add_symbol_assignment(const char* name, size_t length, bool is_defsym,
Expression* value, bool provide, bool hidden);
// Add a reference to a symbol.
void
add_symbol_reference(const char* name, size_t length);
// Add an assertion.
void
add_assertion(Expression* check, const char* message, size_t messagelen);
@ -439,6 +443,32 @@ class Script_options
void
add_symbols_to_table(Symbol_table*);
// Used to iterate over symbols which are referenced in expressions
// but not defined.
typedef Unordered_set<std::string>::const_iterator referenced_const_iterator;
referenced_const_iterator
referenced_begin() const
{ return this->symbol_references_.begin(); }
referenced_const_iterator
referenced_end() const
{ return this->symbol_references_.end(); }
// Return whether a symbol is referenced but not defined.
bool
is_referenced(const std::string& name) const
{
return (this->symbol_references_.find(name)
!= this->symbol_references_.end());
}
// Return whether there are any symbols which were referenced but
// not defined.
bool
any_unreferenced() const
{ return !this->symbol_references_.empty(); }
// Finalize the symbol values. Also check assertions.
void
finalize_symbols(Symbol_table*, const Layout*);
@ -497,6 +527,10 @@ class Script_options
std::string entry_;
// Symbols to set.
Symbol_assignments symbol_assignments_;
// Symbols defined in an expression, for faster lookup.
Unordered_set<std::string> symbol_definitions_;
// Symbols referenced in an expression.
Unordered_set<std::string> symbol_references_;
// Assertions to check.
Assertions assertions_;
// Version information parsed from a version script.