diff options
Diffstat (limited to 'gold/script.h')
| -rw-r--r-- | gold/script.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/gold/script.h b/gold/script.h index 3b8cb92..70e3a59 100644 --- a/gold/script.h +++ b/gold/script.h @@ -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. |