diff options
Diffstat (limited to 'Zend/zend_builtin_functions.c')
| -rw-r--r-- | Zend/zend_builtin_functions.c | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/Zend/zend_builtin_functions.c b/Zend/zend_builtin_functions.c index 5e803057d7..4f295bdd0d 100644 --- a/Zend/zend_builtin_functions.c +++ b/Zend/zend_builtin_functions.c @@ -70,6 +70,7 @@ static ZEND_FUNCTION(extension_loaded); static ZEND_FUNCTION(get_extension_funcs); static ZEND_FUNCTION(get_defined_constants); static ZEND_FUNCTION(debug_backtrace); +static ZEND_FUNCTION(debug_print_backtrace); #if ZEND_DEBUG static ZEND_FUNCTION(zend_test_func); #ifdef ZTS @@ -129,6 +130,7 @@ static zend_function_entry builtin_functions[] = { ZEND_FE(get_extension_funcs, NULL) ZEND_FE(get_defined_constants, NULL) ZEND_FE(debug_backtrace, NULL) + ZEND_FE(debug_print_backtrace, NULL) #if ZEND_DEBUG ZEND_FE(zend_test_func, NULL) #ifdef ZTS @@ -1296,6 +1298,143 @@ static zval *debug_backtrace_get_args(void ***curpos TSRMLS_DC) { return arg_array; } +void debug_print_backtrace_args(zval *arg_array) +{ + zval **tmp; + HashPosition iterator; + int i = 0; + + zend_hash_internal_pointer_reset_ex(arg_array->value.ht, &iterator); + while (zend_hash_get_current_data_ex(arg_array->value.ht, (void **) &tmp, &iterator) == SUCCESS) { + if (i++) { + ZEND_PUTS(", "); + } + zend_print_flat_zval_r(*tmp); + zend_hash_move_forward_ex(arg_array->value.ht, &iterator); + } +} + +/* {{{ proto void debug_print_backtrace(void) */ +ZEND_FUNCTION(debug_print_backtrace) +{ + zend_execute_data *ptr; + int lineno; + char *function_name; + char *filename; + char *class_name; + char *call_type; + char *include_filename = NULL; + zval *arg_array; + void **cur_arg_pos = EG(argument_stack).top_element; + void **args = cur_arg_pos; + int arg_stack_consistent = 0; + int frames_on_stack = 0; + int indent; + + if (ZEND_NUM_ARGS()) { + ZEND_WRONG_PARAM_COUNT(); + } + + while (--args >= EG(argument_stack).elements) { + if (*args--) { + break; + } + args -= *(ulong*)args; + frames_on_stack++; + + if (args == EG(argument_stack).elements) { + arg_stack_consistent = 1; + break; + } + } + + ptr = EG(current_execute_data); + + /* skip debug_backtrace() */ + ptr = ptr->prev_execute_data; + cur_arg_pos -= 2; + frames_on_stack--; + + array_init(return_value); + + while (ptr) { + if (ptr->op_array) { + filename = ptr->op_array->filename; + lineno = ptr->opline->lineno; + } else { + filename = NULL; + } + + function_name = ptr->function_state.function->common.function_name; + + if (function_name) { + if (ptr->object) { + class_name = Z_OBJCE(*ptr->object)->name; + call_type = "->"; + } else if (ptr->function_state.function->common.scope) { + class_name = ptr->function_state.function->common.scope->name; + call_type = "::"; + } else { + class_name = NULL; + call_type = NULL; + } + if ((! ptr->opline) || ((ptr->opline->opcode == ZEND_DO_FCALL_BY_NAME) || (ptr->opline->opcode == ZEND_DO_FCALL))) { + if (arg_stack_consistent && (frames_on_stack > 0)) { + arg_array = debug_backtrace_get_args(&cur_arg_pos TSRMLS_CC); + frames_on_stack--; + } + } + } else { + /* i know this is kinda ugly, but i'm trying to avoid extra cycles in the main execution loop */ + zend_bool build_filename_arg = 1; + + switch (ptr->opline->op2.u.constant.value.lval) { + case ZEND_EVAL: + function_name = "eval"; + build_filename_arg = 0; + break; + case ZEND_INCLUDE: + function_name = "include"; + break; + case ZEND_REQUIRE: + function_name = "require"; + break; + case ZEND_INCLUDE_ONCE: + function_name = "include_once"; + break; + case ZEND_REQUIRE_ONCE: + function_name = "require_once"; + break; + default: + /* this can actually happen if you use debug_backtrace() in your error_handler and + * you're in the top-scope */ + function_name = "unknown"; + build_filename_arg = 0; + break; + } + + if (build_filename_arg && include_filename) { + MAKE_STD_ZVAL(arg_array); + array_init(arg_array); + add_next_index_string(arg_array, include_filename, 1); + } + } + zend_printf("#%-2d ", indent); + if (class_name) { + ZEND_PUTS(class_name); + ZEND_PUTS(call_type); + } + zend_printf("%s(", function_name?function_name:"main"); + debug_print_backtrace_args(arg_array); + ZVAL_DELREF(arg_array); + zend_printf(") called at [%s:%d]\n", filename, lineno); + include_filename = filename; + ptr = ptr->prev_execute_data; + ++indent; + } +} + +/* }}} */ /* {{{ proto void debug_backtrace(void) Prints out a backtrace */ ZEND_FUNCTION(debug_backtrace) |