find_symbol_by_name
func = find_symbol_by_name(file->elf, *name);
func = find_symbol_by_name(file->elf, s);
sym = find_symbol_by_name(file->elf, symname);
sym = find_symbol_by_name(file->elf, pv_ops_tables[idx].name);
key_sym = find_symbol_by_name(file->elf, tmp);
struct symbol *find_symbol_by_name(const struct elf *elf, const char *name);
sym = find_symbol_by_name(e->out, sym_name);
sym = find_symbol_by_name(e->out, sym_name);
sym = find_symbol_by_name(e->out, sym_name);
sym = find_symbol_by_name(e->out, sym_name);
klp_sym = find_symbol_by_name(e->out, sym_name);