class Icf;
// The base class of an entry in the symbol table. The symbol table
-// can have a lot of entries, so we don't want this class to big.
+// can have a lot of entries, so we don't want this class too big.
// Size dependent fields can be found in the template class
// Sized_symbol. Targets may support their own derived classes.
version() const
{ return this->version_; }
+ void
+ clear_version()
+ { this->version_ = NULL; }
+
// Return whether this version is the default for this symbol name
// (eg, "foo@@V2" is a default version; "foo@V1" is not). Only
// meaningful for versioned symbols.
is_predefined() const
{ return this->is_predefined_; }
+ // Return true if this is a C++ vtable symbol.
+ bool
+ is_cxx_vtable() const
+ { return is_prefix_of("_ZTV", this->name_); }
+
protected:
// Instances of this class should always be created at a specific
// size.
bool only_if_ref;
};
+// Specify an object/section/offset location. Used by ODR code.
+
+struct Symbol_location
+{
+ // Object where the symbol is defined.
+ Object* object;
+ // Section-in-object where the symbol is defined.
+ unsigned int shndx;
+ // For relocatable objects, offset-in-section where the symbol is defined.
+ // For dynamic objects, address where the symbol is defined.
+ off_t offset;
+ bool operator==(const Symbol_location& that) const
+ {
+ return (this->object == that.object
+ && this->shndx == that.shndx
+ && this->offset == that.offset);
+ }
+};
+
// This class manages warnings. Warnings are a GNU extension. When
// we see a section named .gnu.warning.SYM in an object file, and if
// we wind using the definition of SYM from that object file, then we
// the locations the symbols is (weakly) defined (and certain other
// conditions are met). This map will be used later to detect
// possible One Definition Rule (ODR) violations.
- struct Symbol_location
- {
- Object* object; // Object where the symbol is defined.
- unsigned int shndx; // Section-in-object where the symbol is defined.
- off_t offset; // Offset-in-section where the symbol is defined.
- bool operator==(const Symbol_location& that) const
- {
- return (this->object == that.object
- && this->shndx == that.shndx
- && this->offset == that.offset);
- }
- };
-
struct Symbol_location_hash
{
size_t operator()(const Symbol_location& loc) const