mirror of
https://github.com/php/php-src.git
synced 2024-09-25 11:57:26 +00:00
265 lines
9.8 KiB
C
265 lines
9.8 KiB
C
/*
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+----------------------------------------------------------------------+
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| PHP Version 5 |
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+----------------------------------------------------------------------+
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| Copyright (c) 1997-2014 The PHP Group |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Authors: Felipe Pena <felipe@php.net> |
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| Authors: Joe Watkins <joe.watkins@live.co.uk> |
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| Authors: Bob Weinand <bwoebi@php.net> |
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+----------------------------------------------------------------------+
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*/
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#include "phpdbg.h"
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#include "phpdbg_print.h"
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#include "phpdbg_utils.h"
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#include "phpdbg_opcode.h"
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#include "phpdbg_prompt.h"
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ZEND_EXTERN_MODULE_GLOBALS(phpdbg);
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#define PHPDBG_PRINT_COMMAND_D(f, h, a, m, l, s, flags) \
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PHPDBG_COMMAND_D_EXP(f, h, a, m, l, s, &phpdbg_prompt_commands[9], flags)
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const phpdbg_command_t phpdbg_print_commands[] = {
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PHPDBG_PRINT_COMMAND_D(exec, "print out the instructions in the execution context", 'e', print_exec, NULL, 0, PHPDBG_ASYNC_SAFE),
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PHPDBG_PRINT_COMMAND_D(opline, "print out the instruction in the current opline", 'o', print_opline, NULL, 0, PHPDBG_ASYNC_SAFE),
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PHPDBG_PRINT_COMMAND_D(class, "print out the instructions in the specified class", 'c', print_class, NULL, "s", PHPDBG_ASYNC_SAFE),
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PHPDBG_PRINT_COMMAND_D(method, "print out the instructions in the specified method", 'm', print_method, NULL, "m", PHPDBG_ASYNC_SAFE),
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PHPDBG_PRINT_COMMAND_D(func, "print out the instructions in the specified function", 'f', print_func, NULL, "s", PHPDBG_ASYNC_SAFE),
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PHPDBG_PRINT_COMMAND_D(stack, "print out the instructions in the current stack", 's', print_stack, NULL, 0, PHPDBG_ASYNC_SAFE),
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PHPDBG_END_COMMAND
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};
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PHPDBG_PRINT(opline) /* {{{ */
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{
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if (EG(in_execution) && EG(current_execute_data)) {
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phpdbg_print_opline(EG(current_execute_data), 1 TSRMLS_CC);
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} else {
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phpdbg_error("inactive", "type=\"execution\"", "Not Executing!");
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}
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return SUCCESS;
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} /* }}} */
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static inline void phpdbg_print_function_helper(zend_function *method TSRMLS_DC) /* {{{ */
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{
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switch (method->type) {
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case ZEND_USER_FUNCTION: {
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zend_op_array* op_array = &(method->op_array);
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HashTable vars;
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if (op_array) {
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zend_op *opline = &(op_array->opcodes[0]);
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zend_uint opcode = 0,
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end = op_array->last-1;
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if (method->common.scope) {
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phpdbg_writeln("printoplineinfo", "type=\"User\" startline=\"%d\" endline=\"%d\" method=\"%s::%s\" file=\"%s\"", "\tL%d-%d %s::%s() %s",
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op_array->line_start,
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op_array->line_end,
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method->common.scope->name,
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method->common.function_name,
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op_array->filename ? op_array->filename : "unknown");
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} else {
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phpdbg_writeln("printoplineinfo", "type=\"User\" startline=\"%d\" endline=\"%d\" function=\"%s\" file=\"%s\"", "\tL%d-%d %s() %s",
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method->common.function_name ? op_array->line_start : 0,
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method->common.function_name ? op_array->line_end : 0,
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method->common.function_name ? method->common.function_name : "{main}",
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op_array->filename ? op_array->filename : "unknown");
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}
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zend_hash_init(&vars, op_array->last, NULL, NULL, 0);
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do {
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char *decode = phpdbg_decode_opline(op_array, opline, &vars TSRMLS_CC);
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if (decode != NULL) {
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phpdbg_writeln("print", "line=\"%u\" opline=\"%p\" opcode=\"%s\" op=\"%s\"", "\t\tL%u\t%p %-30s %s",
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opline->lineno,
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opline,
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phpdbg_decode_opcode(opline->opcode),
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decode);
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free(decode);
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} else {
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phpdbg_error("print", "type=\"decodefailure\" opline=\"%16p\"", "\tFailed to decode opline %16p", opline);
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}
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opline++;
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} while (opcode++ < end);
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zend_hash_destroy(&vars);
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}
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} break;
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default: {
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if (method->common.scope) {
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phpdbg_writeln("printoplineinfo", "type=\"Internal\" method=\"%s::%s\"", "Internal %s::%s()", method->common.scope->name, method->common.function_name);
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} else {
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phpdbg_writeln("printoplineinfo", "type=\"Internal\" function=\"%s\"", "\tInternal %s()", method->common.function_name);
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}
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}
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}
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} /* }}} */
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PHPDBG_PRINT(exec) /* {{{ */
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{
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if (PHPDBG_G(exec)) {
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if (!PHPDBG_G(ops) && !(PHPDBG_G(flags) & PHPDBG_IN_SIGNAL_HANDLER)) {
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phpdbg_compile(TSRMLS_C);
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}
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if (PHPDBG_G(ops)) {
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phpdbg_notice("printinfo", "file=\"%s\" num=\"%d\"", "Context %s (%d ops)", PHPDBG_G(exec), PHPDBG_G(ops)->last);
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phpdbg_print_function_helper((zend_function*) PHPDBG_G(ops) TSRMLS_CC);
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}
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} else {
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phpdbg_error("inactive", "type=\"nocontext\"", "No execution context set");
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}
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return SUCCESS;
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} /* }}} */
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PHPDBG_PRINT(stack) /* {{{ */
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{
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zend_op_array *ops = EG(active_op_array);
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if (EG(in_execution) && ops) {
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if (ops->function_name) {
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if (ops->scope) {
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phpdbg_notice("printinfo", "method=\"%s::%s\" num=\"%d\"", "Stack in %s::%s() (%d ops)", ops->scope->name, ops->function_name, ops->last);
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} else {
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phpdbg_notice("printinfo", "function=\"%s\" num=\"%d\"", "Stack in %s() (%d ops)", ops->function_name, ops->last);
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}
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} else {
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if (ops->filename) {
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phpdbg_notice("printinfo", "file=\"%s\" num=\"%d\"", "Stack in %s (%d ops)", ops->filename, ops->last);
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} else {
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phpdbg_notice("printinfo", "opline=\"%p\" num=\"%d\"", "Stack @ %p (%d ops)", ops, ops->last);
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}
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}
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phpdbg_print_function_helper((zend_function*) ops TSRMLS_CC);
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} else {
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phpdbg_error("inactive", "type=\"execution\"", "Not Executing!");
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}
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return SUCCESS;
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} /* }}} */
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PHPDBG_PRINT(class) /* {{{ */
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{
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zend_class_entry **ce;
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if (phpdbg_safe_class_lookup(param->str, param->len, &ce TSRMLS_CC) == SUCCESS) {
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phpdbg_notice("printinfo", "type=\"%s\" flag=\"%s\" class=\"%s\" num=\"%d\"", "%s %s: %s (%d methods)",
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((*ce)->type == ZEND_USER_CLASS) ?
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"User" : "Internal",
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((*ce)->ce_flags & ZEND_ACC_INTERFACE) ?
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"Interface" :
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((*ce)->ce_flags & ZEND_ACC_ABSTRACT) ?
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"Abstract Class" :
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"Class",
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(*ce)->name,
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zend_hash_num_elements(&(*ce)->function_table));
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phpdbg_xml("<printmethods %r>");
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if (zend_hash_num_elements(&(*ce)->function_table)) {
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HashPosition position;
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zend_function *method;
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for (zend_hash_internal_pointer_reset_ex(&(*ce)->function_table, &position);
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zend_hash_get_current_data_ex(&(*ce)->function_table, (void**) &method, &position) == SUCCESS;
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zend_hash_move_forward_ex(&(*ce)->function_table, &position)) {
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phpdbg_print_function_helper(method TSRMLS_CC);
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}
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}
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phpdbg_xml("</printmethods>");
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} else {
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phpdbg_error("print", "type=\"noclass\" class=\"%s\"", "The class %s could not be found", param->str);
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}
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return SUCCESS;
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} /* }}} */
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PHPDBG_PRINT(method) /* {{{ */
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{
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zend_class_entry **ce;
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if (phpdbg_safe_class_lookup(param->method.class, strlen(param->method.class), &ce TSRMLS_CC) == SUCCESS) {
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zend_function *fbc;
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char *lcname = zend_str_tolower_dup(param->method.name, strlen(param->method.name));
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if (zend_hash_find(&(*ce)->function_table, lcname, strlen(lcname)+1, (void**)&fbc) == SUCCESS) {
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phpdbg_notice("printinfo", "type=\"%s\" flags=\"Method\" symbol=\"%s\" num=\"%d\"", "%s Method %s (%d ops)",
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(fbc->type == ZEND_USER_FUNCTION) ? "User" : "Internal",
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fbc->common.function_name,
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(fbc->type == ZEND_USER_FUNCTION) ? fbc->op_array.last : 0);
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phpdbg_print_function_helper(fbc TSRMLS_CC);
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} else {
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phpdbg_error("print", "type=\"nomethod\" method=\"%s::%s\"", "The method %s::%s could not be found", param->method.class, param->method.name);
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}
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efree(lcname);
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} else {
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phpdbg_error("print", "type=\"noclass\" class=\"%s\"", "The class %s could not be found", param->method.class);
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}
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return SUCCESS;
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} /* }}} */
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PHPDBG_PRINT(func) /* {{{ */
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{
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HashTable *func_table = EG(function_table);
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zend_function* fbc;
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const char *func_name = param->str;
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size_t func_name_len = param->len;
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char *lcname;
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/* search active scope if begins with period */
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if (func_name[0] == '.') {
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if (EG(scope)) {
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func_name++;
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func_name_len--;
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func_table = &EG(scope)->function_table;
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} else {
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phpdbg_error("inactive", "type=\"noclasses\"", "No active class");
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return SUCCESS;
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}
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} else if (!EG(function_table)) {
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phpdbg_error("inactive", "type=\"function_table\"", "No function table loaded");
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return SUCCESS;
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} else {
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func_table = EG(function_table);
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}
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lcname = zend_str_tolower_dup(func_name, func_name_len);
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phpdbg_try_access {
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if (zend_hash_find(func_table, lcname, func_name_len + 1, (void **) &fbc) == SUCCESS) {
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phpdbg_notice("printinfo", "type=\"%s\" flags=\"%s\" symbol=\"%s\" num=\"%d\"", "%s %s %s (%d ops)",
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(fbc->type == ZEND_USER_FUNCTION) ? "User" : "Internal",
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(fbc->common.scope) ? "Method" : "Function",
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fbc->common.function_name,
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(fbc->type == ZEND_USER_FUNCTION) ? fbc->op_array.last : 0);
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phpdbg_print_function_helper(fbc TSRMLS_CC);
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} else {
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phpdbg_error("print", "type=\"nofunction\" function=\"%s\"", "The function %s could not be found", func_name);
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}
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} phpdbg_catch_access {
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phpdbg_error("signalsegv", "function=\"%.*s\"", "Couldn't fetch function %.*s, invalid data source", (int) func_name_len, func_name);
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} phpdbg_end_try_access();
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efree(lcname);
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return SUCCESS;
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} /* }}} */
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