mirror of
https://github.com/php/php-src.git
synced 2024-09-22 18:37:25 +00:00
1204 lines
32 KiB
C
1204 lines
32 KiB
C
/*
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+----------------------------------------------------------------------+
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| PHP Version 5 |
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+----------------------------------------------------------------------+
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| Copyright (c) 1997-2013 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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+----------------------------------------------------------------------+
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*/
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#include <stdio.h>
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#include <string.h>
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#include "zend.h"
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#include "zend_compile.h"
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#include "phpdbg.h"
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#include "phpdbg_help.h"
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#include "phpdbg_print.h"
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#include "phpdbg_info.h"
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#include "phpdbg_break.h"
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#include "phpdbg_bp.h"
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#include "phpdbg_opcode.h"
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#include "phpdbg_list.h"
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#include "phpdbg_utils.h"
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#include "phpdbg_prompt.h"
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#include "phpdbg_cmd.h"
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|
|
|
/* {{{ forward declarations */
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static PHPDBG_COMMAND(exec);
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static PHPDBG_COMMAND(compile);
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static PHPDBG_COMMAND(step);
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static PHPDBG_COMMAND(next);
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static PHPDBG_COMMAND(run);
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static PHPDBG_COMMAND(eval);
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static PHPDBG_COMMAND(until);
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|
static PHPDBG_COMMAND(finish);
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static PHPDBG_COMMAND(leave);
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static PHPDBG_COMMAND(print);
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static PHPDBG_COMMAND(break);
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static PHPDBG_COMMAND(back);
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static PHPDBG_COMMAND(list);
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static PHPDBG_COMMAND(info);
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static PHPDBG_COMMAND(clean);
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static PHPDBG_COMMAND(clear);
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static PHPDBG_COMMAND(help);
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static PHPDBG_COMMAND(quiet);
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static PHPDBG_COMMAND(aliases);
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static PHPDBG_COMMAND(shell);
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static PHPDBG_COMMAND(oplog);
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static PHPDBG_COMMAND(quit); /* }}} */
|
|
|
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/* {{{ command declarations */
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static const phpdbg_command_t phpdbg_prompt_commands[] = {
|
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PHPDBG_COMMAND_D(exec, "set execution context", 'e', NULL, 1),
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PHPDBG_COMMAND_D(compile, "attempt to pre-compile execution context", 'c', NULL, 0),
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PHPDBG_COMMAND_D(step, "step through execution", 's', NULL, 1),
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PHPDBG_COMMAND_D(next, "continue execution", 'n', NULL, 0),
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PHPDBG_COMMAND_D(run, "attempt execution", 'r', NULL, 0),
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PHPDBG_COMMAND_D(eval, "evaluate some code", 'E', NULL, 1),
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PHPDBG_COMMAND_D(until, "continue past the current line", 'u', NULL, 0),
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PHPDBG_COMMAND_D(finish, "continue past the end of the stack", 'f', NULL, 0),
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PHPDBG_COMMAND_D(leave, "continue until the end of the stack", 'L', NULL, 0),
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PHPDBG_COMMAND_D(print, "print something", 'p', phpdbg_print_commands, 2),
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PHPDBG_COMMAND_D(break, "set breakpoint", 'b', phpdbg_break_commands, 1),
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|
PHPDBG_COMMAND_D(back, "show trace", 't', NULL, 0),
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PHPDBG_COMMAND_D(list, "lists some code", 'l', phpdbg_list_commands, 2),
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PHPDBG_COMMAND_D(info, "displays some informations", 'i', phpdbg_info_commands, 1),
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PHPDBG_COMMAND_D(clean, "clean the execution environment", 'X', NULL, 0),
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PHPDBG_COMMAND_D(clear, "clear breakpoints", 'C', NULL, 0),
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PHPDBG_COMMAND_D(help, "show help menu", 'h', phpdbg_help_commands, 2),
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PHPDBG_COMMAND_D(quiet, "silence some output", 'Q', NULL, 1),
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PHPDBG_COMMAND_D(aliases, "show alias list", 'a', NULL, 0),
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PHPDBG_COMMAND_D(oplog, "sets oplog output", 'O', NULL, 1),
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PHPDBG_COMMAND_D(shell, "shell a command", '-', NULL, 1),
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PHPDBG_COMMAND_D(quit, "exit phpdbg", 'q', NULL, 0),
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PHPDBG_END_COMMAND
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}; /* }}} */
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|
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ZEND_EXTERN_MODULE_GLOBALS(phpdbg);
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|
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void phpdbg_init(char *init_file, size_t init_file_len, zend_bool use_default TSRMLS_DC) /* {{{ */
|
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{
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zend_bool init_default = 0;
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|
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if (!init_file && use_default) {
|
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struct stat sb;
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|
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if (VCWD_STAT(".phpdbginit", &sb) != -1) {
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init_file = ".phpdbginit";
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init_file_len = strlen(".phpdbginit");
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init_default = 1;
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|
}
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}
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|
|
|
if (init_file) {
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FILE *fp = fopen(init_file, "r");
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if (fp) {
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int line = 1;
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|
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char cmd[PHPDBG_MAX_CMD];
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size_t cmd_len = 0L;
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char *code = NULL;
|
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size_t code_len = 0L;
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zend_bool in_code = 0;
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|
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while (fgets(cmd, PHPDBG_MAX_CMD, fp) != NULL) {
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phpdbg_command_t *selected = NULL;
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cmd_len = strlen(cmd)-1;
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|
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while (*cmd && isspace(cmd[cmd_len-1]))
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cmd_len--;
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cmd[cmd_len] = '\0';
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|
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if (*cmd && cmd_len > 0L && cmd[0] != '#') {
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if (cmd_len == 2) {
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if (memcmp(cmd, "<:", sizeof("<:")-1) == SUCCESS) {
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in_code = 1;
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goto next_line;
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} else {
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if (memcmp(cmd, ":>", sizeof(":>")-1) == SUCCESS) {
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in_code = 0;
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code[code_len] = '\0';
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{
|
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zend_eval_stringl(
|
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code, code_len, NULL, "phpdbginit code" TSRMLS_CC);
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}
|
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free(code);
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code = NULL;
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goto next_line;
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}
|
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}
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}
|
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|
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if (in_code) {
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if (code == NULL) {
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code = malloc(cmd_len);
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} else code = realloc(code, code_len + cmd_len);
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|
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if (code) {
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memcpy(
|
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&code[code_len], cmd, cmd_len);
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code_len += cmd_len;
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}
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goto next_line;
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}
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switch (phpdbg_do_cmd(phpdbg_prompt_commands, &selected, cmd, cmd_len TSRMLS_CC)) {
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case FAILURE:
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phpdbg_error(
|
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"Unrecognized command in %s:%d: %s!", init_file, line, cmd);
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break;
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}
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}
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next_line:
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line++;
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}
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if (code) {
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free(code);
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}
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fclose(fp);
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} else {
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phpdbg_error(
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"Failed to open %s for initialization", init_file);
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}
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|
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if (!init_default) {
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free(init_file);
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}
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}
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} /* }}} */
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static PHPDBG_COMMAND(exec) /* {{{ */
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{
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switch (param->type) {
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case STR_PARAM: {
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struct stat sb;
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|
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if (VCWD_STAT(param->str, &sb) != FAILURE) {
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if (sb.st_mode & (S_IFREG|S_IFLNK)) {
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if (PHPDBG_G(exec)) {
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phpdbg_notice("Unsetting old execution context: %s", PHPDBG_G(exec));
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efree(PHPDBG_G(exec));
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PHPDBG_G(exec) = NULL;
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}
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|
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if (PHPDBG_G(ops)) {
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phpdbg_notice("Destroying compiled opcodes");
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phpdbg_clean(0 TSRMLS_CC);
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}
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PHPDBG_G(exec) = phpdbg_resolve_path(param->str TSRMLS_CC);
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if (!PHPDBG_G(exec)) {
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phpdbg_error("Cannot get real file path");
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return SUCCESS;
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}
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PHPDBG_G(exec_len) = strlen(PHPDBG_G(exec));
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|
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phpdbg_notice("Set execution context: %s", PHPDBG_G(exec));
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|
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} else {
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phpdbg_error("Cannot use %s as execution context, not a valid file or symlink", param->str);
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}
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} else {
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phpdbg_error("Cannot stat %s, ensure the file exists", param->str);
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}
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} break;
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|
|
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phpdbg_default_switch_case();
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}
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return SUCCESS;
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|
} /* }}} */
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|
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int phpdbg_compile(TSRMLS_D) /* {{{ */
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{
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zend_file_handle fh;
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|
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if (EG(in_execution)) {
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phpdbg_error("Cannot compile while in execution");
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return FAILURE;
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}
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phpdbg_notice("Attempting compilation of %s", PHPDBG_G(exec));
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|
|
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if (php_stream_open_for_zend_ex(PHPDBG_G(exec), &fh,
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USE_PATH|STREAM_OPEN_FOR_INCLUDE TSRMLS_CC) == SUCCESS) {
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PHPDBG_G(ops) = zend_compile_file(&fh, ZEND_INCLUDE TSRMLS_CC);
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zend_destroy_file_handle(&fh TSRMLS_CC);
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phpdbg_notice("Success");
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return SUCCESS;
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} else {
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phpdbg_error("Could not open file %s", PHPDBG_G(exec));
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}
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return FAILURE;
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} /* }}} */
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|
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static PHPDBG_COMMAND(compile) /* {{{ */
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{
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if (!PHPDBG_G(exec)) {
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phpdbg_error("No execution context");
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return SUCCESS;
|
|
}
|
|
|
|
if (!EG(in_execution)) {
|
|
if (PHPDBG_G(ops)) {
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phpdbg_error("Destroying previously compiled opcodes");
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phpdbg_clean(0 TSRMLS_CC);
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}
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}
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|
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phpdbg_compile(TSRMLS_C);
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|
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return SUCCESS;
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} /* }}} */
|
|
|
|
static PHPDBG_COMMAND(step) /* {{{ */
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{
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switch (param->type) {
|
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case EMPTY_PARAM:
|
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case NUMERIC_PARAM: {
|
|
if (param->type == NUMERIC_PARAM && param->num) {
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PHPDBG_G(flags) |= PHPDBG_IS_STEPPING;
|
|
} else {
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PHPDBG_G(flags) &= ~PHPDBG_IS_STEPPING;
|
|
}
|
|
|
|
phpdbg_notice("Stepping %s",
|
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(PHPDBG_G(flags) & PHPDBG_IS_STEPPING) ? "on" : "off");
|
|
} break;
|
|
|
|
phpdbg_default_switch_case();
|
|
}
|
|
|
|
return SUCCESS;
|
|
} /* }}} */
|
|
|
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static PHPDBG_COMMAND(next) /* {{{ */
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|
{
|
|
return PHPDBG_NEXT;
|
|
} /* }}} */
|
|
|
|
static PHPDBG_COMMAND(until) /* {{{ */
|
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{
|
|
if (!EG(in_execution)) {
|
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phpdbg_error("Not executing");
|
|
return SUCCESS;
|
|
}
|
|
|
|
PHPDBG_G(flags) |= PHPDBG_IN_UNTIL;
|
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{
|
|
zend_uint next = 0,
|
|
self = (EG(current_execute_data)->opline - EG(active_op_array)->opcodes);
|
|
zend_op *opline = &EG(active_op_array)->opcodes[self];
|
|
|
|
for (next = self; next < EG(active_op_array)->last; next++) {
|
|
if (EG(active_op_array)->opcodes[next].lineno != opline->lineno) {
|
|
zend_hash_index_update(
|
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&PHPDBG_G(seek),
|
|
(zend_ulong) &EG(active_op_array)->opcodes[next],
|
|
&EG(active_op_array)->opcodes[next],
|
|
sizeof(zend_op), NULL);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return PHPDBG_UNTIL;
|
|
} /* }}} */
|
|
|
|
static PHPDBG_COMMAND(finish) /* {{{ */
|
|
{
|
|
if (!EG(in_execution)) {
|
|
phpdbg_error("Not executing");
|
|
return SUCCESS;
|
|
}
|
|
|
|
PHPDBG_G(flags) |= PHPDBG_IN_FINISH;
|
|
{
|
|
zend_uint next = 0,
|
|
self = (EG(current_execute_data)->opline - EG(active_op_array)->opcodes);
|
|
zend_op *opline = &EG(active_op_array)->opcodes[self];
|
|
|
|
for (next = self; next < EG(active_op_array)->last; next++) {
|
|
switch (EG(active_op_array)->opcodes[next].opcode) {
|
|
case ZEND_RETURN:
|
|
case ZEND_THROW:
|
|
case ZEND_EXIT:
|
|
#ifdef ZEND_YIELD
|
|
case ZEND_YIELD:
|
|
#endif
|
|
zend_hash_index_update(
|
|
&PHPDBG_G(seek),
|
|
(zend_ulong) &EG(active_op_array)->opcodes[next],
|
|
&EG(active_op_array)->opcodes[next],
|
|
sizeof(zend_op), NULL);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return PHPDBG_FINISH;
|
|
} /* }}} */
|
|
|
|
static PHPDBG_COMMAND(leave) /* {{{ */
|
|
{
|
|
if (!EG(in_execution)) {
|
|
phpdbg_error("Not executing");
|
|
return SUCCESS;
|
|
}
|
|
|
|
PHPDBG_G(flags) |= PHPDBG_IN_LEAVE;
|
|
{
|
|
zend_uint next = 0,
|
|
self = (EG(current_execute_data)->opline - EG(active_op_array)->opcodes);
|
|
zend_op *opline = &EG(active_op_array)->opcodes[self];
|
|
|
|
for (next = self; next < EG(active_op_array)->last; next++) {
|
|
switch (EG(active_op_array)->opcodes[next].opcode) {
|
|
case ZEND_RETURN:
|
|
case ZEND_THROW:
|
|
case ZEND_EXIT:
|
|
#ifdef ZEND_YIELD
|
|
case ZEND_YIELD:
|
|
#endif
|
|
zend_hash_index_update(
|
|
&PHPDBG_G(seek),
|
|
(zend_ulong) &EG(active_op_array)->opcodes[next],
|
|
&EG(active_op_array)->opcodes[next],
|
|
sizeof(zend_op), NULL);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return PHPDBG_LEAVE;
|
|
} /* }}} */
|
|
|
|
static PHPDBG_COMMAND(run) /* {{{ */
|
|
{
|
|
if (EG(in_execution)) {
|
|
phpdbg_error("Cannot start another execution while one is in progress");
|
|
return SUCCESS;
|
|
}
|
|
|
|
if (PHPDBG_G(ops) || PHPDBG_G(exec)) {
|
|
zend_op **orig_opline = EG(opline_ptr);
|
|
zend_op_array *orig_op_array = EG(active_op_array);
|
|
zval **orig_retval_ptr = EG(return_value_ptr_ptr);
|
|
|
|
if (!PHPDBG_G(ops)) {
|
|
if (phpdbg_compile(TSRMLS_C) == FAILURE) {
|
|
phpdbg_error(
|
|
"Failed to compile %s, cannot run", PHPDBG_G(exec));
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
EG(active_op_array) = PHPDBG_G(ops);
|
|
EG(return_value_ptr_ptr) = &PHPDBG_G(retval);
|
|
if (!EG(active_symbol_table)) {
|
|
zend_rebuild_symbol_table(TSRMLS_C);
|
|
}
|
|
|
|
zend_try {
|
|
/* last chance ... */
|
|
zend_activate_auto_globals(TSRMLS_C);
|
|
} zend_end_try();
|
|
|
|
/* clean seek state */
|
|
PHPDBG_G(flags) &= ~PHPDBG_SEEK_MASK;
|
|
zend_hash_clean(
|
|
&PHPDBG_G(seek));
|
|
|
|
zend_try {
|
|
zend_execute(
|
|
EG(active_op_array) TSRMLS_CC);
|
|
} zend_catch {
|
|
EG(active_op_array) = orig_op_array;
|
|
EG(opline_ptr) = orig_opline;
|
|
EG(return_value_ptr_ptr) = orig_retval_ptr;
|
|
|
|
if (!(PHPDBG_G(flags) & PHPDBG_IS_QUITTING)) {
|
|
phpdbg_error("Caught exit/error from VM");
|
|
goto out;
|
|
}
|
|
} zend_end_try();
|
|
|
|
if (EG(exception)) {
|
|
phpdbg_error("Uncaught Exception !");
|
|
/*
|
|
* @TODO(anyone) something better !!
|
|
*/
|
|
zend_print_zval_r(
|
|
EG(exception), 0 TSRMLS_CC);
|
|
|
|
/* make sure this is dtor'd and reset */
|
|
zval_ptr_dtor(&EG(exception));
|
|
EG(exception) = NULL;
|
|
}
|
|
|
|
EG(active_op_array) = orig_op_array;
|
|
EG(opline_ptr) = orig_opline;
|
|
EG(return_value_ptr_ptr) = orig_retval_ptr;
|
|
|
|
} else {
|
|
phpdbg_error("Nothing to execute!");
|
|
}
|
|
|
|
out:
|
|
return SUCCESS;
|
|
} /* }}} */
|
|
|
|
static PHPDBG_COMMAND(eval) /* {{{ */
|
|
{
|
|
switch (param->type) {
|
|
case STR_PARAM: {
|
|
zend_bool stepping = (PHPDBG_G(flags) & PHPDBG_IS_STEPPING);
|
|
zval retval;
|
|
|
|
PHPDBG_G(flags) &= ~ PHPDBG_IS_STEPPING;
|
|
|
|
/* disable stepping while eval() in progress */
|
|
PHPDBG_G(flags) |= PHPDBG_IN_EVAL;
|
|
if (zend_eval_stringl(param->str, param->len,
|
|
&retval, "eval()'d code" TSRMLS_CC) == SUCCESS) {
|
|
zend_print_zval_r(
|
|
&retval, 0 TSRMLS_CC);
|
|
phpdbg_writeln(EMPTY);
|
|
zval_dtor(&retval);
|
|
}
|
|
PHPDBG_G(flags) &= ~PHPDBG_IN_EVAL;
|
|
|
|
/* switch stepping back on */
|
|
if (stepping) {
|
|
PHPDBG_G(flags) |= PHPDBG_IS_STEPPING;
|
|
}
|
|
} break;
|
|
|
|
phpdbg_default_switch_case();
|
|
}
|
|
|
|
return SUCCESS;
|
|
} /* }}} */
|
|
|
|
static PHPDBG_COMMAND(back) /* {{{ */
|
|
{
|
|
if (!EG(in_execution)) {
|
|
phpdbg_error("Not executing!");
|
|
return SUCCESS;
|
|
}
|
|
|
|
switch (param->type) {
|
|
case EMPTY_PARAM:
|
|
case NUMERIC_PARAM: {
|
|
zval zbacktrace;
|
|
zval **tmp;
|
|
HashPosition position;
|
|
int i = 0,
|
|
limit = (param->type == NUMERIC_PARAM) ? param->num : 0;
|
|
|
|
zend_fetch_debug_backtrace(
|
|
&zbacktrace, 0, 0, limit TSRMLS_CC);
|
|
|
|
for (zend_hash_internal_pointer_reset_ex(Z_ARRVAL(zbacktrace), &position);
|
|
zend_hash_get_current_data_ex(Z_ARRVAL(zbacktrace), (void**)&tmp, &position) == SUCCESS;
|
|
zend_hash_move_forward_ex(Z_ARRVAL(zbacktrace), &position)) {
|
|
if (i++) {
|
|
phpdbg_writeln(",");
|
|
}
|
|
zend_print_flat_zval_r(*tmp TSRMLS_CC);
|
|
}
|
|
|
|
phpdbg_writeln(EMPTY);
|
|
zval_dtor(&zbacktrace);
|
|
} break;
|
|
|
|
phpdbg_default_switch_case();
|
|
}
|
|
|
|
return SUCCESS;
|
|
} /* }}} */
|
|
|
|
static PHPDBG_COMMAND(print) /* {{{ */
|
|
{
|
|
switch (param->type) {
|
|
case EMPTY_PARAM: {
|
|
phpdbg_writeln(SEPARATE);
|
|
phpdbg_notice("Execution Context Information");
|
|
#ifdef HAVE_LIBREADLINE
|
|
phpdbg_writeln("Readline\tyes");
|
|
#else
|
|
phpdbg_writeln("Readline\tno");
|
|
#endif
|
|
|
|
phpdbg_writeln("Exec\t\t%s", PHPDBG_G(exec) ? PHPDBG_G(exec) : "none");
|
|
phpdbg_writeln("Compiled\t%s", PHPDBG_G(ops) ? "yes" : "no");
|
|
phpdbg_writeln("Stepping\t%s", (PHPDBG_G(flags) & PHPDBG_IS_STEPPING) ? "on" : "off");
|
|
phpdbg_writeln("Quietness\t%s", (PHPDBG_G(flags) & PHPDBG_IS_QUIET) ? "on" : "off");
|
|
phpdbg_writeln("Oplog\t\t%s", PHPDBG_G(oplog) ? "on" : "off");
|
|
|
|
if (PHPDBG_G(ops)) {
|
|
phpdbg_writeln("Opcodes\t\t%d", PHPDBG_G(ops)->last);
|
|
|
|
if (PHPDBG_G(ops)->last_var) {
|
|
phpdbg_writeln("Variables\t%d", PHPDBG_G(ops)->last_var-1);
|
|
} else {
|
|
phpdbg_writeln("Variables\tNone");
|
|
}
|
|
}
|
|
|
|
phpdbg_writeln("Executing\t%s", EG(in_execution) ? "yes" : "no");
|
|
if (EG(in_execution)) {
|
|
phpdbg_writeln("VM Return\t%d", PHPDBG_G(vmret));
|
|
}
|
|
phpdbg_writeln("Classes\t\t%d", zend_hash_num_elements(EG(class_table)));
|
|
phpdbg_writeln("Functions\t%d", zend_hash_num_elements(EG(function_table)));
|
|
phpdbg_writeln("Constants\t%d", zend_hash_num_elements(EG(zend_constants)));
|
|
phpdbg_writeln("Included\t%d", zend_hash_num_elements(&EG(included_files)));
|
|
|
|
phpdbg_print_breakpoints(PHPDBG_BREAK_FILE TSRMLS_CC);
|
|
phpdbg_print_breakpoints(PHPDBG_BREAK_SYM TSRMLS_CC);
|
|
phpdbg_print_breakpoints(PHPDBG_BREAK_METHOD TSRMLS_CC);
|
|
phpdbg_print_breakpoints(PHPDBG_BREAK_OPLINE TSRMLS_CC);
|
|
phpdbg_print_breakpoints(PHPDBG_BREAK_COND TSRMLS_CC);
|
|
|
|
phpdbg_writeln(SEPARATE);
|
|
} break;
|
|
|
|
phpdbg_default_switch_case();
|
|
}
|
|
|
|
return SUCCESS;
|
|
} /* }}} */
|
|
|
|
static PHPDBG_COMMAND(info) /* {{{ */
|
|
{
|
|
return SUCCESS;
|
|
} /* }}} */
|
|
|
|
static PHPDBG_COMMAND(break) /* {{{ */
|
|
{
|
|
switch (param->type) {
|
|
case ADDR_PARAM:
|
|
phpdbg_set_breakpoint_opline(param->addr TSRMLS_CC);
|
|
break;
|
|
case NUMERIC_PARAM:
|
|
phpdbg_set_breakpoint_file(phpdbg_current_file(TSRMLS_C), param->num TSRMLS_CC);
|
|
break;
|
|
case METHOD_PARAM:
|
|
phpdbg_set_breakpoint_method(param->method.class, param->method.name TSRMLS_CC);
|
|
break;
|
|
case FILE_PARAM:
|
|
phpdbg_set_breakpoint_file(param->file.name, param->file.line TSRMLS_CC);
|
|
break;
|
|
case STR_PARAM:
|
|
phpdbg_set_breakpoint_symbol(param->str TSRMLS_CC);
|
|
break;
|
|
|
|
phpdbg_default_switch_case();
|
|
}
|
|
|
|
return SUCCESS;
|
|
} /* }}} */
|
|
|
|
static PHPDBG_COMMAND(shell)
|
|
{
|
|
/* don't allow this to loop, ever ... */
|
|
switch (param->type) {
|
|
case STR_PARAM: {
|
|
FILE *fd = VCWD_POPEN(param->str, "w");
|
|
if (fd) {
|
|
/* do something perhaps ?? do we want input ?? */
|
|
fclose(fd);
|
|
} else {
|
|
phpdbg_error(
|
|
"Failed to execute %s", param->str);
|
|
}
|
|
} break;
|
|
|
|
phpdbg_default_switch_case();
|
|
}
|
|
return SUCCESS;
|
|
}
|
|
|
|
static PHPDBG_COMMAND(quit) /* {{{ */
|
|
{
|
|
/* don't allow this to loop, ever ... */
|
|
if (!(PHPDBG_G(flags) & PHPDBG_IS_QUITTING)) {
|
|
|
|
PHPDBG_G(flags) |= PHPDBG_IS_QUITTING;
|
|
zend_bailout();
|
|
}
|
|
|
|
return SUCCESS;
|
|
} /* }}} */
|
|
|
|
static PHPDBG_COMMAND(clean) /* {{{ */
|
|
{
|
|
if (EG(in_execution)) {
|
|
phpdbg_error("Cannot clean environment while executing");
|
|
return SUCCESS;
|
|
}
|
|
|
|
phpdbg_notice("Cleaning Execution Environment");
|
|
|
|
phpdbg_writeln("Classes\t\t\t%d", zend_hash_num_elements(EG(class_table)));
|
|
phpdbg_writeln("Functions\t\t%d", zend_hash_num_elements(EG(function_table)));
|
|
phpdbg_writeln("Constants\t\t%d", zend_hash_num_elements(EG(zend_constants)));
|
|
phpdbg_writeln("Includes\t\t%d", zend_hash_num_elements(&EG(included_files)));
|
|
|
|
phpdbg_clean(1 TSRMLS_CC);
|
|
|
|
return SUCCESS;
|
|
} /* }}} */
|
|
|
|
static PHPDBG_COMMAND(clear) /* {{{ */
|
|
{
|
|
phpdbg_notice("Clearing Breakpoints");
|
|
|
|
phpdbg_writeln("File\t\t\t%d", zend_hash_num_elements(&PHPDBG_G(bp)[PHPDBG_BREAK_FILE]));
|
|
phpdbg_writeln("Functions\t\t%d", zend_hash_num_elements(&PHPDBG_G(bp)[PHPDBG_BREAK_SYM]));
|
|
phpdbg_writeln("Methods\t\t\t%d", zend_hash_num_elements(&PHPDBG_G(bp)[PHPDBG_BREAK_METHOD]));
|
|
phpdbg_writeln("Oplines\t\t\t%d", zend_hash_num_elements(&PHPDBG_G(bp)[PHPDBG_BREAK_OPLINE]));
|
|
phpdbg_writeln("Conditionals\t\t%d", zend_hash_num_elements(&PHPDBG_G(bp)[PHPDBG_BREAK_COND]));
|
|
|
|
phpdbg_clear_breakpoints(TSRMLS_C);
|
|
|
|
return SUCCESS;
|
|
} /* }}} */
|
|
|
|
static PHPDBG_COMMAND(aliases) /* {{{ */
|
|
{
|
|
const phpdbg_command_t *prompt_command = phpdbg_prompt_commands;
|
|
|
|
phpdbg_help_header();
|
|
phpdbg_writeln("Below are the aliased, short versions of all supported commands");
|
|
while (prompt_command && prompt_command->name) {
|
|
if (prompt_command->alias) {
|
|
if (prompt_command->subs) {
|
|
const phpdbg_command_t *sub_command = prompt_command->subs;
|
|
phpdbg_writeln(EMPTY);
|
|
phpdbg_writeln(" %c -> %s", prompt_command->alias, prompt_command->name);
|
|
while (sub_command && sub_command->name) {
|
|
if (sub_command->alias) {
|
|
phpdbg_writeln(" |-------- %c -> %s\t%s", sub_command->alias,
|
|
sub_command->name, sub_command->tip);
|
|
}
|
|
++sub_command;
|
|
}
|
|
phpdbg_writeln(EMPTY);
|
|
} else {
|
|
phpdbg_writeln(" %c -> %s\t%s", prompt_command->alias,
|
|
prompt_command->name, prompt_command->tip);
|
|
}
|
|
}
|
|
|
|
++prompt_command;
|
|
}
|
|
phpdbg_help_footer();
|
|
|
|
return SUCCESS;
|
|
} /* }}} */
|
|
|
|
static PHPDBG_COMMAND(oplog) /* {{{ */
|
|
{
|
|
switch (param->type) {
|
|
case EMPTY_PARAM:
|
|
case NUMERIC_PARAM:
|
|
if ((param->type != NUMERIC_PARAM) || !param->num) {
|
|
if (PHPDBG_G(oplog)) {
|
|
phpdbg_notice("Disabling oplog");
|
|
fclose(
|
|
PHPDBG_G(oplog));
|
|
} else {
|
|
phpdbg_error("No oplog currently open");
|
|
}
|
|
}
|
|
break;
|
|
|
|
case STR_PARAM: {
|
|
/* open oplog */
|
|
FILE *old = PHPDBG_G(oplog);
|
|
|
|
PHPDBG_G(oplog) = fopen(param->str, "w+");
|
|
if (!PHPDBG_G(oplog)) {
|
|
phpdbg_error("Failed to open %s for oplog", param->str);
|
|
PHPDBG_G(oplog) = old;
|
|
} else {
|
|
if (old) {
|
|
phpdbg_notice("Closing previously open oplog");
|
|
fclose(old);
|
|
}
|
|
phpdbg_notice("Successfully opened oplog %s", param->str);
|
|
}
|
|
} break;
|
|
|
|
phpdbg_default_switch_case();
|
|
}
|
|
|
|
return SUCCESS;
|
|
} /* }}} */
|
|
|
|
static PHPDBG_COMMAND(help) /* {{{ */
|
|
{
|
|
switch (param->type) {
|
|
case EMPTY_PARAM: {
|
|
const phpdbg_command_t *prompt_command = phpdbg_prompt_commands;
|
|
const phpdbg_command_t *help_command = phpdbg_help_commands;
|
|
|
|
phpdbg_help_header();
|
|
phpdbg_writeln("To get help regarding a specific command type \"help command\"");
|
|
|
|
phpdbg_notice("Commands");
|
|
|
|
while (prompt_command && prompt_command->name) {
|
|
phpdbg_writeln(
|
|
"\t%s\t%s", prompt_command->name, prompt_command->tip);
|
|
++prompt_command;
|
|
}
|
|
|
|
phpdbg_notice("Helpers Loaded");
|
|
|
|
while (help_command && help_command->name) {
|
|
phpdbg_writeln("\t%s\t%s", help_command->name, help_command->tip);
|
|
++help_command;
|
|
}
|
|
|
|
phpdbg_notice("Command Line Options and Flags");
|
|
phpdbg_writeln("\tOption\tExample\t\t\tPurpose");
|
|
phpdbg_writeln(EMPTY);
|
|
phpdbg_writeln("\t-c\t-c/my/php.ini\t\tSet php.ini file to load");
|
|
phpdbg_writeln("\t-d\t-dmemory_limit=4G\tSet a php.ini directive");
|
|
phpdbg_writeln("\t-n\t-N/A\t\t\tDisable default php.ini");
|
|
phpdbg_writeln("\t-e\t-emytest.php\t\tSet execution context");
|
|
phpdbg_writeln("\t-v\tN/A\t\t\tEnable opline output while executing");
|
|
phpdbg_writeln("\t-s\tN/A\t\t\tEnable stepping");
|
|
phpdbg_writeln("\t-b\tN/A\t\t\tDisable the use of colours");
|
|
phpdbg_writeln("\t-i\t-imy.init\t\tSet the phpdbginit file");
|
|
phpdbg_writeln("\t-I\tN/A\t\t\tDisable loading .phpdbginit");
|
|
phpdbg_writeln("\t-O\t-Omy.oplog\t\tSets oplog output file");
|
|
phpdbg_help_footer();
|
|
} break;
|
|
|
|
phpdbg_default_switch_case();
|
|
}
|
|
|
|
return SUCCESS;
|
|
} /* }}} */
|
|
|
|
static PHPDBG_COMMAND(quiet) /* {{{ */
|
|
{
|
|
switch (param->type) {
|
|
case NUMERIC_PARAM: {
|
|
if (param->num) {
|
|
PHPDBG_G(flags) |= PHPDBG_IS_QUIET;
|
|
} else {
|
|
PHPDBG_G(flags) &= ~PHPDBG_IS_QUIET;
|
|
}
|
|
phpdbg_notice("Quietness %s",
|
|
(PHPDBG_G(flags) & PHPDBG_IS_QUIET) ? "enabled" : "disabled");
|
|
} break;
|
|
|
|
phpdbg_default_switch_case();
|
|
}
|
|
|
|
return SUCCESS;
|
|
} /* }}} */
|
|
|
|
static PHPDBG_COMMAND(list) /* {{{ */
|
|
{
|
|
switch (param->type) {
|
|
case NUMERIC_PARAM:
|
|
case EMPTY_PARAM:
|
|
return PHPDBG_LIST_HANDLER(lines)(param TSRMLS_CC);
|
|
|
|
case FILE_PARAM:
|
|
return PHPDBG_LIST_HANDLER(lines)(param TSRMLS_CC);
|
|
|
|
case STR_PARAM:
|
|
phpdbg_list_function_byname(param->str, param->len TSRMLS_CC);
|
|
break;
|
|
|
|
case METHOD_PARAM:
|
|
return PHPDBG_LIST_HANDLER(method)(param TSRMLS_CC);
|
|
|
|
phpdbg_default_switch_case();
|
|
}
|
|
|
|
return SUCCESS;
|
|
} /* }}} */
|
|
|
|
int phpdbg_interactive(TSRMLS_D) /* {{{ */
|
|
{
|
|
size_t cmd_len;
|
|
int ret = SUCCESS;
|
|
|
|
#ifndef HAVE_LIBREADLINE
|
|
char cmd[PHPDBG_MAX_CMD];
|
|
|
|
while (!(PHPDBG_G(flags) & PHPDBG_IS_QUITTING) &&
|
|
phpdbg_write(PROMPT) &&
|
|
(fgets(cmd, PHPDBG_MAX_CMD, stdin) != NULL)) {
|
|
cmd_len = strlen(cmd) - 1;
|
|
#else
|
|
char *cmd = NULL;
|
|
|
|
while (!(PHPDBG_G(flags) & PHPDBG_IS_QUITTING)) {
|
|
cmd = readline(PROMPT);
|
|
cmd_len = cmd ? strlen(cmd) : 0;
|
|
#endif
|
|
|
|
/* trim space from end of input */
|
|
while (*cmd && isspace(cmd[cmd_len-1]))
|
|
cmd_len--;
|
|
|
|
/* ensure string is null terminated */
|
|
cmd[cmd_len] = '\0';
|
|
|
|
if (*cmd && cmd_len > 0L) {
|
|
/* keep a cursor to selected command */
|
|
phpdbg_command_t *selected = NULL;
|
|
|
|
#ifdef HAVE_LIBREADLINE
|
|
add_history(cmd);
|
|
#endif
|
|
|
|
switch (ret = phpdbg_do_cmd(phpdbg_prompt_commands, &selected, cmd, cmd_len TSRMLS_CC)) {
|
|
case FAILURE:
|
|
if (!(PHPDBG_G(flags) & PHPDBG_IS_QUITTING)) {
|
|
phpdbg_error("Failed to execute %s!", cmd);
|
|
}
|
|
break;
|
|
|
|
case PHPDBG_LEAVE:
|
|
case PHPDBG_FINISH:
|
|
case PHPDBG_UNTIL:
|
|
case PHPDBG_NEXT: {
|
|
if (!EG(in_execution)) {
|
|
phpdbg_error("Not running");
|
|
}
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
#ifdef HAVE_LIBREADLINE
|
|
if (cmd) {
|
|
free(cmd);
|
|
cmd = NULL;
|
|
}
|
|
#endif
|
|
} else if (PHPDBG_G(last)) {
|
|
ret = PHPDBG_G(last)->handler(PHPDBG_G(lparam) TSRMLS_CC);
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
out:
|
|
#ifdef HAVE_LIBREADLINE
|
|
if (cmd) {
|
|
free(cmd);
|
|
}
|
|
#endif
|
|
|
|
return ret;
|
|
} /* }}} */
|
|
|
|
void phpdbg_print_opline(zend_execute_data *execute_data, zend_bool ignore_flags TSRMLS_DC) /* {{{ */
|
|
{
|
|
/* force out a line while stepping so the user knows what is happening */
|
|
if (ignore_flags ||
|
|
(!(PHPDBG_G(flags) & PHPDBG_IS_QUIET) ||
|
|
(PHPDBG_G(flags) & PHPDBG_IS_STEPPING) ||
|
|
(PHPDBG_G(oplog)))) {
|
|
|
|
zend_op *opline = execute_data->opline;
|
|
|
|
if (ignore_flags ||
|
|
(!(PHPDBG_G(flags) & PHPDBG_IS_QUIET) ||
|
|
(PHPDBG_G(flags) & PHPDBG_IS_STEPPING))) {
|
|
/* output line info */
|
|
phpdbg_notice("#%lu %p %s %s",
|
|
opline->lineno,
|
|
opline,
|
|
phpdbg_decode_opcode(opline->opcode),
|
|
execute_data->op_array->filename ? execute_data->op_array->filename : "unknown");
|
|
}
|
|
|
|
if (!ignore_flags && PHPDBG_G(oplog)) {
|
|
phpdbg_log_ex(PHPDBG_G(oplog), "#%lu %p %s %s",
|
|
opline->lineno,
|
|
opline,
|
|
phpdbg_decode_opcode(opline->opcode),
|
|
execute_data->op_array->filename ? execute_data->op_array->filename : "unknown");
|
|
}
|
|
}
|
|
} /* }}} */
|
|
|
|
void phpdbg_clean(zend_bool full TSRMLS_DC) /* {{{ */
|
|
{
|
|
/* this is implicitly required */
|
|
if (PHPDBG_G(ops)) {
|
|
destroy_op_array(PHPDBG_G(ops) TSRMLS_CC);
|
|
efree(PHPDBG_G(ops));
|
|
PHPDBG_G(ops) = NULL;
|
|
}
|
|
|
|
if (full) {
|
|
PHPDBG_G(flags) |= PHPDBG_IS_CLEANING;
|
|
|
|
zend_bailout();
|
|
}
|
|
} /* }}} */
|
|
|
|
static inline zend_execute_data *phpdbg_create_execute_data(zend_op_array *op_array, zend_bool nested TSRMLS_DC) /* {{{ */
|
|
{
|
|
#if PHP_VERSION_ID >= 50500
|
|
return zend_create_execute_data_from_op_array(op_array, nested TSRMLS_CC);
|
|
#else
|
|
|
|
#undef EX
|
|
#define EX(element) execute_data->element
|
|
#undef EX_CV
|
|
#define EX_CV(var) EX(CVs)[var]
|
|
#undef EX_CVs
|
|
#define EX_CVs() EX(CVs)
|
|
#undef EX_T
|
|
#define EX_T(offset) (*(temp_variable *)((char *) EX(Ts) + offset))
|
|
#undef EX_Ts
|
|
#define EX_Ts() EX(Ts)
|
|
|
|
zend_execute_data *execute_data = (zend_execute_data *)zend_vm_stack_alloc(
|
|
ZEND_MM_ALIGNED_SIZE(sizeof(zend_execute_data)) +
|
|
ZEND_MM_ALIGNED_SIZE(sizeof(zval**) * op_array->last_var * (EG(active_symbol_table) ? 1 : 2)) +
|
|
ZEND_MM_ALIGNED_SIZE(sizeof(temp_variable)) * op_array->T TSRMLS_CC);
|
|
|
|
EX(CVs) = (zval***)((char*)execute_data + ZEND_MM_ALIGNED_SIZE(sizeof(zend_execute_data)));
|
|
memset(EX(CVs), 0, sizeof(zval**) * op_array->last_var);
|
|
EX(Ts) = (temp_variable *)(((char*)EX(CVs)) + ZEND_MM_ALIGNED_SIZE(sizeof(zval**) * op_array->last_var * (EG(active_symbol_table) ? 1 : 2)));
|
|
EX(fbc) = NULL;
|
|
EX(called_scope) = NULL;
|
|
EX(object) = NULL;
|
|
EX(old_error_reporting) = NULL;
|
|
EX(op_array) = op_array;
|
|
EX(symbol_table) = EG(active_symbol_table);
|
|
EX(prev_execute_data) = EG(current_execute_data);
|
|
EG(current_execute_data) = execute_data;
|
|
EX(nested) = nested;
|
|
|
|
if (!op_array->run_time_cache && op_array->last_cache_slot) {
|
|
op_array->run_time_cache = ecalloc(op_array->last_cache_slot, sizeof(void*));
|
|
}
|
|
|
|
if (op_array->this_var != -1 && EG(This)) {
|
|
Z_ADDREF_P(EG(This)); /* For $this pointer */
|
|
if (!EG(active_symbol_table)) {
|
|
EX_CV(op_array->this_var) = (zval**)EX_CVs() + (op_array->last_var + op_array->this_var);
|
|
*EX_CV(op_array->this_var) = EG(This);
|
|
} else {
|
|
if (zend_hash_add(EG(active_symbol_table), "this", sizeof("this"), &EG(This), sizeof(zval *), (void**)&EX_CV(op_array->this_var))==FAILURE) {
|
|
Z_DELREF_P(EG(This));
|
|
}
|
|
}
|
|
}
|
|
|
|
EX(opline) = UNEXPECTED((op_array->fn_flags & ZEND_ACC_INTERACTIVE) != 0) && EG(start_op) ? EG(start_op) : op_array->opcodes;
|
|
EG(opline_ptr) = &EX(opline);
|
|
|
|
EX(function_state).function = (zend_function *) op_array;
|
|
EX(function_state).arguments = NULL;
|
|
|
|
return execute_data;
|
|
#endif
|
|
} /* }}} */
|
|
|
|
#if PHP_VERSION_ID >= 50500
|
|
void phpdbg_execute_ex(zend_execute_data *execute_data TSRMLS_DC) /* {{{ */
|
|
{
|
|
#else
|
|
void phpdbg_execute_ex(zend_op_array *op_array TSRMLS_DC) /* {{{ */
|
|
{
|
|
long long flags = 0;
|
|
zend_ulong address = 0L;
|
|
zend_execute_data *execute_data;
|
|
zend_bool nested = 0;
|
|
#endif
|
|
zend_bool original_in_execution = EG(in_execution);
|
|
|
|
#if PHP_VERSION_ID < 50500
|
|
if (EG(exception)) {
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
EG(in_execution) = 1;
|
|
|
|
#if PHP_VERSION_ID >= 50500
|
|
if (0) {
|
|
zend_vm_enter:
|
|
execute_data = phpdbg_create_execute_data(EG(active_op_array), 1 TSRMLS_CC);
|
|
}
|
|
#else
|
|
zend_vm_enter:
|
|
execute_data = phpdbg_create_execute_data(op_array, nested TSRMLS_CC);
|
|
nested = 1;
|
|
#endif
|
|
|
|
while (1) {
|
|
#ifdef ZEND_WIN32
|
|
if (EG(timed_out)) {
|
|
zend_timeout(0);
|
|
}
|
|
#endif
|
|
|
|
#define DO_INTERACTIVE() do {\
|
|
phpdbg_list_file(\
|
|
zend_get_executed_filename(TSRMLS_C), \
|
|
3, \
|
|
zend_get_executed_lineno(TSRMLS_C)-1, \
|
|
zend_get_executed_lineno(TSRMLS_C) \
|
|
TSRMLS_CC\
|
|
);\
|
|
\
|
|
do {\
|
|
switch (phpdbg_interactive(TSRMLS_C)) {\
|
|
case PHPDBG_LEAVE:\
|
|
case PHPDBG_FINISH:\
|
|
case PHPDBG_UNTIL:\
|
|
case PHPDBG_NEXT:{\
|
|
goto next;\
|
|
}\
|
|
}\
|
|
} while(!(PHPDBG_G(flags) & PHPDBG_IS_QUITTING));\
|
|
} while(0)
|
|
|
|
/* allow conditional breakpoints to access the vm uninterrupted */
|
|
if (PHPDBG_G(flags) & PHPDBG_IN_COND_BP) {
|
|
/* skip possible breakpoints */
|
|
goto next;
|
|
}
|
|
|
|
/* perform seek operation */
|
|
if (PHPDBG_G(flags) & PHPDBG_SEEK_MASK) {
|
|
/* current address */
|
|
zend_ulong address = (zend_ulong) execute_data->opline;
|
|
|
|
/* run to next line */
|
|
if (PHPDBG_G(flags) & PHPDBG_IN_UNTIL) {
|
|
if (zend_hash_index_exists(&PHPDBG_G(seek), address)) {
|
|
PHPDBG_G(flags) &= ~PHPDBG_IN_UNTIL;
|
|
zend_hash_clean(
|
|
&PHPDBG_G(seek));
|
|
} else {
|
|
/* skip possible breakpoints */
|
|
goto next;
|
|
}
|
|
}
|
|
|
|
/* run to finish */
|
|
if (PHPDBG_G(flags) & PHPDBG_IN_FINISH) {
|
|
if (zend_hash_index_exists(&PHPDBG_G(seek), address)) {
|
|
PHPDBG_G(flags) &= ~PHPDBG_IN_FINISH;
|
|
zend_hash_clean(
|
|
&PHPDBG_G(seek));
|
|
}
|
|
/* skip possible breakpoints */
|
|
goto next;
|
|
}
|
|
|
|
/* break for leave */
|
|
if (PHPDBG_G(flags) & PHPDBG_IN_LEAVE) {
|
|
if (zend_hash_index_exists(&PHPDBG_G(seek), address)) {
|
|
PHPDBG_G(flags) &= ~PHPDBG_IN_LEAVE;
|
|
zend_hash_clean(
|
|
&PHPDBG_G(seek));
|
|
phpdbg_notice(
|
|
"Breaking for leave at %s:%u",
|
|
zend_get_executed_filename(TSRMLS_C),
|
|
zend_get_executed_lineno(TSRMLS_C)
|
|
);
|
|
DO_INTERACTIVE();
|
|
} else {
|
|
/* skip possible breakpoints */
|
|
goto next;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* not while in conditionals */
|
|
phpdbg_print_opline(
|
|
execute_data, 0 TSRMLS_CC);
|
|
|
|
/* conditions cannot be executed by eval()'d code */
|
|
if (!(PHPDBG_G(flags) & PHPDBG_IN_EVAL)
|
|
&& (PHPDBG_G(flags) & PHPDBG_HAS_COND_BP)
|
|
&& phpdbg_find_conditional_breakpoint(TSRMLS_C) == SUCCESS) {
|
|
DO_INTERACTIVE();
|
|
}
|
|
|
|
if ((PHPDBG_G(flags) & PHPDBG_HAS_FILE_BP)
|
|
&& phpdbg_find_breakpoint_file(execute_data->op_array TSRMLS_CC) == SUCCESS) {
|
|
DO_INTERACTIVE();
|
|
}
|
|
|
|
if ((PHPDBG_G(flags) & (PHPDBG_HAS_METHOD_BP|PHPDBG_HAS_SYM_BP))) {
|
|
/* check we are at the beginning of the stack */
|
|
if (execute_data->opline == EG(active_op_array)->opcodes) {
|
|
if (phpdbg_find_breakpoint_symbol(
|
|
execute_data->function_state.function TSRMLS_CC) == SUCCESS) {
|
|
DO_INTERACTIVE();
|
|
}
|
|
}
|
|
}
|
|
|
|
if ((PHPDBG_G(flags) & PHPDBG_HAS_OPLINE_BP)
|
|
&& phpdbg_find_breakpoint_opline(execute_data->opline TSRMLS_CC) == SUCCESS) {
|
|
DO_INTERACTIVE();
|
|
}
|
|
|
|
if ((PHPDBG_G(flags) & PHPDBG_IS_STEPPING)) {
|
|
DO_INTERACTIVE();
|
|
}
|
|
|
|
next:
|
|
PHPDBG_G(vmret) = execute_data->opline->handler(execute_data TSRMLS_CC);
|
|
|
|
if (PHPDBG_G(vmret) > 0) {
|
|
switch (PHPDBG_G(vmret)) {
|
|
case 1:
|
|
EG(in_execution) = original_in_execution;
|
|
return;
|
|
case 2:
|
|
#if PHP_VERSION_ID < 50500
|
|
op_array = EG(active_op_array);
|
|
#endif
|
|
goto zend_vm_enter;
|
|
break;
|
|
case 3:
|
|
execute_data = EG(current_execute_data);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
zend_error_noreturn(E_ERROR, "Arrived at end of main loop which shouldn't happen");
|
|
} /* }}} */
|