if (!sym)
return NULL;
+ if (!SYMBOL_OBJFILE_OWNED (sym))
+ return sym;
+
/* We either have an OBJFILE, or we can get at it from the sym's
symtab. Anything else is a bug. */
gdb_assert (objfile || symbol_symtab (sym));
domain_name (domain), language_str (language));
}
+ /* Initialize block_found so that the language la_lookup_symbol_nonlocal
+ routines don't have to set it (to NULL) if a primitive type is found.
+ We do this early so that block_found is also NULL if no symbol is
+ found (though this is not part of the API, and callers cannot assume
+ this). */
+ block_found = NULL;
+
/* Make sure we do something sensible with is_a_field_of_this, since
the callers that set this parameter to some non-null value will
certainly use it later. If we don't set it, the contents of
if (sym != NULL)
return sym;
+ /* If we didn't find a definition for a builtin type in the static block,
+ search for it now. This is actually the right thing to do and can be
+ a massive performance win. E.g., when debugging a program with lots of
+ shared libraries we could search all of them only to find out the
+ builtin type isn't defined in any of them. This is common for types
+ like "void". */
+ if (domain == VAR_DOMAIN)
+ {
+ struct gdbarch *gdbarch;
+
+ if (block == NULL)
+ gdbarch = target_gdbarch ();
+ else
+ gdbarch = block_gdbarch (block);
+ sym = language_lookup_primitive_type_as_symbol (langdef, gdbarch, name);
+ if (sym != NULL)
+ return sym;
+ }
+
return lookup_global_symbol (name, block, domain);
}
\f
-/* Initialize the symbol SYM. */
+/* Helper function to initialize the fields of an objfile-owned symbol.
+ It assumed that *SYM is already all zeroes. */
+
+static void
+initialize_objfile_symbol_1 (struct symbol *sym)
+{
+ SYMBOL_OBJFILE_OWNED (sym) = 1;
+ SYMBOL_SECTION (sym) = -1;
+}
+
+/* Initialize the symbol SYM, and mark it as being owned by an objfile. */
void
initialize_objfile_symbol (struct symbol *sym)
{
memset (sym, 0, sizeof (*sym));
- SYMBOL_SECTION (sym) = -1;
+ initialize_objfile_symbol_1 (sym);
}
/* Allocate and initialize a new 'struct symbol' on OBJFILE's
struct symbol *result;
result = OBSTACK_ZALLOC (&objfile->objfile_obstack, struct symbol);
- SYMBOL_SECTION (result) = -1;
+ initialize_objfile_symbol_1 (result);
return result;
}
struct template_symbol *result;
result = OBSTACK_ZALLOC (&objfile->objfile_obstack, struct template_symbol);
- SYMBOL_SECTION (&result->base) = -1;
+ initialize_objfile_symbol_1 (&result->base);
return result;
}
struct objfile *
symbol_objfile (const struct symbol *symbol)
{
- return SYMTAB_OBJFILE (symbol->symtab);
+ gdb_assert (SYMBOL_OBJFILE_OWNED (symbol));
+ return SYMTAB_OBJFILE (symbol->owner.symtab);
}
/* See symtab.h. */
struct gdbarch *
symbol_arch (const struct symbol *symbol)
{
- return get_objfile_arch (symbol_objfile (symbol));
+ if (!SYMBOL_OBJFILE_OWNED (symbol))
+ return symbol->owner.arch;
+ return get_objfile_arch (SYMTAB_OBJFILE (symbol->owner.symtab));
}
/* See symtab.h. */
struct symtab *
symbol_symtab (const struct symbol *symbol)
{
- return symbol->symtab;
+ gdb_assert (SYMBOL_OBJFILE_OWNED (symbol));
+ return symbol->owner.symtab;
}
/* See symtab.h. */
void
symbol_set_symtab (struct symbol *symbol, struct symtab *symtab)
{
- symbol->symtab = symtab;
+ gdb_assert (SYMBOL_OBJFILE_OWNED (symbol));
+ symbol->owner.symtab = symtab;
}
\f