db_symbol_by_name
if (db_symbol_by_name("db_machine_init", &val) != NULL) {
args->result = (db_symbol_by_name(symbol, &value) != NULL) ? 0 : -1;
if ((st = db_symbol_by_name(db_tok_string, &addr)) == NULL) {
if (db_symbol_by_name(db_tok_string, valuep) == NULL) {
Elf_Sym * db_symbol_by_name(const char *, db_expr_t *);