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xdebug.c
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xdebug.c
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/*
+----------------------------------------------------------------------+
| Xdebug |
+----------------------------------------------------------------------+
| Copyright (c) 2002, 2003 Derick Rethans |
+----------------------------------------------------------------------+
| This source file is subject to version 1.0 of the Xdebug license, |
| that is bundled with this package in the file LICENSE, and is |
| available at through the world-wide-web at |
| http://xdebug.derickrethans.nl/license.php |
| If you did not receive a copy of the Xdebug license and are unable |
| to obtain it through the world-wide-web, please send a note to |
| xdebug@derickrethans.nl so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Derick Rethans <derick@xdebug.org> |
| Ilia Alshanetsky <ilia@prohost.org> |
| Harald Radi <harald.radi@nme.at> |
+----------------------------------------------------------------------+
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#include "main/php_version.h"
#include "xdebug_compat.h"
#if HAVE_XDEBUG
#ifndef PHP_WIN32
#include <sys/time.h>
#include <unistd.h>
#else
#include "win32/time.h"
#include <process.h>
#endif
#include "TSRM.h"
#include "SAPI.h"
#include "php_ini.h"
#include "ext/standard/head.h"
#include "ext/standard/html.h"
#include "ext/standard/info.h"
#include "ext/standard/php_smart_str.h"
#include "php_globals.h"
#include "ext/standard/php_var.h"
#include "zend.h"
#include "zend_API.h"
#include "zend_execute.h"
#include "zend_compile.h"
#include "zend_constants.h"
#include "zend_extensions.h"
#ifdef ZEND_ENGINE_2
# include "zend_exceptions.h"
# if PHP_MAJOR_VERSION == 5 && PHP_MINOR_VERSION >= 1
# include "zend_vm.h"
# endif
#endif
#include "php_xdebug.h"
#include "xdebug_private.h"
#include "xdebug_code_coverage.h"
#include "xdebug_com.h"
#include "xdebug_llist.h"
#include "xdebug_mm.h"
#include "xdebug_var.h"
#include "xdebug_profiler.h"
#include "xdebug_superglobals.h"
#include "usefulstuff.h"
/* execution redirection functions */
zend_op_array* (*old_compile_file)(zend_file_handle* file_handle, int type TSRMLS_DC);
zend_op_array* xdebug_compile_file(zend_file_handle*, int TSRMLS_DC);
void (*xdebug_old_execute)(zend_op_array *op_array TSRMLS_DC);
void xdebug_execute(zend_op_array *op_array TSRMLS_DC);
void (*xdebug_old_execute_internal)(zend_execute_data *current_execute_data, int return_value_used TSRMLS_DC);
void xdebug_execute_internal(zend_execute_data *current_execute_data, int return_value_used TSRMLS_DC);
/* error callback repalcement functions */
void (*old_error_cb)(int type, const char *error_filename, const uint error_lineno, const char *format, va_list args);
void (*new_error_cb)(int type, const char *error_filename, const uint error_lineno, const char *format, va_list args);
void xdebug_error_cb(int type, const char *error_filename, const uint error_lineno, const char *format, va_list args);
#ifdef ZEND_ENGINE_2
void xdebug_throw_exception_hook(zval *exception TSRMLS_DC);
int xdebug_exit_handler(ZEND_OPCODE_HANDLER_ARGS);
int (*old_exit_handler)(ZEND_OPCODE_HANDLER_ARGS);
static int xdebug_jmp_handler(ZEND_OPCODE_HANDLER_ARGS);
static int (*old_jmp_handler)(ZEND_OPCODE_HANDLER_ARGS);
static int xdebug_jmpz_handler(ZEND_OPCODE_HANDLER_ARGS);
static int (*old_jmpz_handler)(ZEND_OPCODE_HANDLER_ARGS);
static int xdebug_is_identical_handler(ZEND_OPCODE_HANDLER_ARGS);
static int (*old_is_identical_handler)(ZEND_OPCODE_HANDLER_ARGS);
static int xdebug_is_not_identical_handler(ZEND_OPCODE_HANDLER_ARGS);
static int (*old_is_not_identical_handler)(ZEND_OPCODE_HANDLER_ARGS);
static int xdebug_is_equal_handler(ZEND_OPCODE_HANDLER_ARGS);
static int (*old_is_equal_handler)(ZEND_OPCODE_HANDLER_ARGS);
static int xdebug_is_not_equal_handler(ZEND_OPCODE_HANDLER_ARGS);
static int (*old_is_not_equal_handler)(ZEND_OPCODE_HANDLER_ARGS);
static int xdebug_is_smaller_handler(ZEND_OPCODE_HANDLER_ARGS);
static int (*old_is_smaller_handler)(ZEND_OPCODE_HANDLER_ARGS);
static int xdebug_is_smaller_or_equal_handler(ZEND_OPCODE_HANDLER_ARGS);
static int (*old_is_smaller_or_equal_handler)(ZEND_OPCODE_HANDLER_ARGS);
#endif
static zval *get_zval(znode *node, temp_variable *Ts, int *is_var);
static char* return_trace_stack_frame_begin(function_stack_entry* i, int fnr TSRMLS_DC);
static char* return_trace_stack_frame_end(function_stack_entry* i, int fnr TSRMLS_DC);
static char* return_trace_stack_retval(function_stack_entry* i, zval* retval TSRMLS_DC);
int zend_xdebug_initialised = 0;
function_entry xdebug_functions[] = {
PHP_FE(xdebug_get_stack_depth, NULL)
PHP_FE(xdebug_get_function_stack, NULL)
PHP_FE(xdebug_call_class, NULL)
PHP_FE(xdebug_call_function, NULL)
PHP_FE(xdebug_call_file, NULL)
PHP_FE(xdebug_call_line, NULL)
PHP_FE(xdebug_var_dump, NULL)
PHP_FE(xdebug_debug_zval, NULL)
PHP_FE(xdebug_enable, NULL)
PHP_FE(xdebug_disable, NULL)
PHP_FE(xdebug_is_enabled, NULL)
PHP_FE(xdebug_break, NULL)
PHP_FE(xdebug_start_trace, NULL)
PHP_FE(xdebug_stop_trace, NULL)
PHP_FE(xdebug_get_tracefile_name, NULL)
#if MEMORY_LIMIT
PHP_FE(xdebug_memory_usage, NULL)
PHP_FE(xdebug_peak_memory_usage, NULL)
#endif
PHP_FE(xdebug_time_index, NULL)
PHP_FE(xdebug_start_code_coverage, NULL)
PHP_FE(xdebug_stop_code_coverage, NULL)
PHP_FE(xdebug_get_code_coverage, NULL)
PHP_FE(xdebug_get_function_count, NULL)
PHP_FE(xdebug_dump_superglobals, NULL)
{NULL, NULL, NULL}
};
zend_module_entry xdebug_module_entry = {
STANDARD_MODULE_HEADER,
"xdebug",
xdebug_functions,
PHP_MINIT(xdebug),
PHP_MSHUTDOWN(xdebug),
PHP_RINIT(xdebug),
#ifndef ZEND_ENGINE_2
PHP_RSHUTDOWN(xdebug),
#else
NULL,
#endif
PHP_MINFO(xdebug),
XDEBUG_VERSION,
#ifdef ZEND_ENGINE_2
ZEND_MODULE_POST_ZEND_DEACTIVATE_N(xdebug),
#else
NULL,
NULL,
#endif
STANDARD_MODULE_PROPERTIES_EX
};
ZEND_DECLARE_MODULE_GLOBALS(xdebug)
#if COMPILE_DL_XDEBUG
ZEND_GET_MODULE(xdebug)
#endif
static PHP_INI_MH(OnUpdateServer)
{
DUMP_TOK(server);
}
static PHP_INI_MH(OnUpdateGet)
{
DUMP_TOK(get);
}
static PHP_INI_MH(OnUpdatePost)
{
DUMP_TOK(post);
}
static PHP_INI_MH(OnUpdateCookie)
{
DUMP_TOK(cookie);
}
static PHP_INI_MH(OnUpdateFiles)
{
DUMP_TOK(files);
}
static PHP_INI_MH(OnUpdateEnv)
{
DUMP_TOK(env);
}
static PHP_INI_MH(OnUpdateRequest)
{
DUMP_TOK(request);
}
static PHP_INI_MH(OnUpdateSession)
{
DUMP_TOK(session);
}
static PHP_INI_MH(OnUpdateAllowedClients)
{
return SUCCESS;
}
static PHP_INI_MH(OnUpdateIDEKey)
{
if (XG(ide_key)) {
xdfree(XG(ide_key));
}
if (!new_value) {
XG(ide_key) = NULL;
} else {
XG(ide_key) = xdstrdup(new_value);
}
return SUCCESS;
}
static PHP_INI_MH(OnUpdateDebugMode)
{
if (!new_value) {
XG(remote_mode) = XDEBUG_NONE;
} else if (strcmp(new_value, "jit") == 0) {
XG(remote_mode) = XDEBUG_JIT;
} else if (strcmp(new_value, "req") == 0) {
XG(remote_mode) = XDEBUG_REQ;
} else {
XG(remote_mode) = XDEBUG_NONE;
}
return SUCCESS;
}
PHP_INI_BEGIN()
/* Debugger settings */
STD_PHP_INI_BOOLEAN("xdebug.auto_trace", "0", PHP_INI_ALL, OnUpdateBool, auto_trace, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_ENTRY("xdebug.trace_output_dir", "/tmp", PHP_INI_ALL, OnUpdateString, trace_output_dir, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_ENTRY("xdebug.trace_output_name", "crc32", PHP_INI_ALL, OnUpdateString, trace_output_name, zend_xdebug_globals, xdebug_globals)
#if ZEND_EXTENSION_API_NO < 90000000
STD_PHP_INI_ENTRY("xdebug.trace_format", "0", PHP_INI_ALL, OnUpdateInt, trace_format, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_ENTRY("xdebug.trace_options", "0", PHP_INI_ALL, OnUpdateInt, trace_options, zend_xdebug_globals, xdebug_globals)
#else
STD_PHP_INI_ENTRY("xdebug.trace_format", "0", PHP_INI_ALL, OnUpdateLong, trace_format, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_ENTRY("xdebug.trace_options", "0", PHP_INI_ALL, OnUpdateLong, trace_options, zend_xdebug_globals, xdebug_globals)
#endif
STD_PHP_INI_BOOLEAN("xdebug.collect_includes","1", PHP_INI_ALL, OnUpdateBool, collect_includes, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_BOOLEAN("xdebug.collect_params", "0", PHP_INI_ALL, OnUpdateBool, collect_params, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_BOOLEAN("xdebug.collect_return", "0", PHP_INI_ALL, OnUpdateBool, collect_return, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_BOOLEAN("xdebug.default_enable", "1", PHP_INI_SYSTEM, OnUpdateBool, default_enable, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_BOOLEAN("xdebug.extended_info", "1", PHP_INI_SYSTEM, OnUpdateBool, extended_info, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_ENTRY("xdebug.manual_url", "http://www.php.net", PHP_INI_ALL, OnUpdateString, manual_url, zend_xdebug_globals, xdebug_globals)
#if ZEND_EXTENSION_API_NO < 90000000
STD_PHP_INI_ENTRY("xdebug.max_nesting_level", "100", PHP_INI_ALL, OnUpdateInt, max_nesting_level, zend_xdebug_globals, xdebug_globals)
#else
STD_PHP_INI_ENTRY("xdebug.max_nesting_level", "100", PHP_INI_ALL, OnUpdateLong, max_nesting_level, zend_xdebug_globals, xdebug_globals)
#endif
STD_PHP_INI_BOOLEAN("xdebug.show_local_vars", "0", PHP_INI_ALL, OnUpdateBool, show_local_vars, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_BOOLEAN("xdebug.show_mem_delta", "0", PHP_INI_ALL, OnUpdateBool, show_mem_delta, zend_xdebug_globals, xdebug_globals)
/* Dump superglobals settings */
PHP_INI_ENTRY("xdebug.dump.COOKIE", NULL, PHP_INI_ALL, OnUpdateCookie)
PHP_INI_ENTRY("xdebug.dump.ENV", NULL, PHP_INI_ALL, OnUpdateEnv)
PHP_INI_ENTRY("xdebug.dump.FILES", NULL, PHP_INI_ALL, OnUpdateFiles)
PHP_INI_ENTRY("xdebug.dump.GET", NULL, PHP_INI_ALL, OnUpdateGet)
PHP_INI_ENTRY("xdebug.dump.POST", NULL, PHP_INI_ALL, OnUpdatePost)
PHP_INI_ENTRY("xdebug.dump.REQUEST", NULL, PHP_INI_ALL, OnUpdateRequest)
PHP_INI_ENTRY("xdebug.dump.SERVER", NULL, PHP_INI_ALL, OnUpdateServer)
PHP_INI_ENTRY("xdebug.dump.SESSION", NULL, PHP_INI_ALL, OnUpdateSession)
STD_PHP_INI_BOOLEAN("xdebug.dump_globals", "1", PHP_INI_ALL, OnUpdateBool, dump_globals, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_BOOLEAN("xdebug.dump_once", "1", PHP_INI_ALL, OnUpdateBool, dump_once, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_BOOLEAN("xdebug.dump_undefined", "0", PHP_INI_ALL, OnUpdateBool, dump_undefined, zend_xdebug_globals, xdebug_globals)
/* Profiler settings */
STD_PHP_INI_BOOLEAN("xdebug.profiler_enable", "0", PHP_INI_SYSTEM|PHP_INI_PERDIR, OnUpdateBool, profiler_enable, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_ENTRY("xdebug.profiler_output_dir", "/tmp", PHP_INI_SYSTEM|PHP_INI_PERDIR, OnUpdateString, profiler_output_dir, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_ENTRY("xdebug.profiler_output_name", "crc32", PHP_INI_SYSTEM|PHP_INI_PERDIR, OnUpdateString, profiler_output_name, zend_xdebug_globals, xdebug_globals)
/* Remote debugger settings */
STD_PHP_INI_BOOLEAN("xdebug.remote_enable", "0", PHP_INI_SYSTEM|PHP_INI_PERDIR, OnUpdateBool, remote_enable, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_ENTRY("xdebug.remote_handler", "dbgp", PHP_INI_ALL, OnUpdateString, remote_handler, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_ENTRY("xdebug.remote_host", "localhost", PHP_INI_ALL, OnUpdateString, remote_host, zend_xdebug_globals, xdebug_globals)
PHP_INI_ENTRY("xdebug.remote_mode", "req", PHP_INI_ALL, OnUpdateDebugMode)
#if ZEND_EXTENSION_API_NO < 90000000
STD_PHP_INI_ENTRY("xdebug.remote_port", "9000", PHP_INI_ALL, OnUpdateInt, remote_port, zend_xdebug_globals, xdebug_globals)
#else
STD_PHP_INI_ENTRY("xdebug.remote_port", "9000", PHP_INI_ALL, OnUpdateLong, remote_port, zend_xdebug_globals, xdebug_globals)
#endif
STD_PHP_INI_BOOLEAN("xdebug.remote_autostart","0", PHP_INI_ALL, OnUpdateBool, remote_autostart, zend_xdebug_globals, xdebug_globals)
PHP_INI_ENTRY("xdebug.allowed_clients", "", PHP_INI_SYSTEM, OnUpdateAllowedClients)
PHP_INI_ENTRY("xdebug.idekey", "", PHP_INI_ALL, OnUpdateIDEKey)
PHP_INI_END()
static void php_xdebug_init_globals (zend_xdebug_globals *xg TSRMLS_DC)
{
xg->stack = NULL;
xg->level = 0;
xg->do_trace = 0;
xg->trace_file = NULL;
xg->do_code_coverage = 0;
xg->error_handler = NULL;
xg->breakpoint_count = 0;
xdebug_llist_init(&xg->server, dump_dtor);
xdebug_llist_init(&xg->get, dump_dtor);
xdebug_llist_init(&xg->post, dump_dtor);
xdebug_llist_init(&xg->cookie, dump_dtor);
xdebug_llist_init(&xg->files, dump_dtor);
xdebug_llist_init(&xg->env, dump_dtor);
xdebug_llist_init(&xg->request, dump_dtor);
xdebug_llist_init(&xg->session, dump_dtor);
}
#ifdef ZTS
static void php_xdebug_shutdown_globals (zend_xdebug_globals *xg TSRMLS_DC)
{
xdebug_llist_empty(&xg->server, NULL);
xdebug_llist_empty(&xg->get, NULL);
xdebug_llist_empty(&xg->post, NULL);
xdebug_llist_empty(&xg->cookie, NULL);
xdebug_llist_empty(&xg->files, NULL);
xdebug_llist_empty(&xg->env, NULL);
xdebug_llist_empty(&xg->request, NULL);
xdebug_llist_empty(&xg->session, NULL);
}
#endif
void xdebug_env_key()
{
char *ide_key = getenv("DBGP_IDEKEY");
if (!ide_key || !*ide_key) {
ide_key = getenv("USER");
if (!ide_key || !*ide_key) {
ide_key = getenv("USERNAME");
}
}
if (ide_key && *ide_key) {
zend_alter_ini_entry("xdebug.idekey", sizeof("xdebug.idekey"), ide_key, strlen(ide_key), PHP_INI_SYSTEM, PHP_INI_STAGE_ACTIVATE);
}
}
void xdebug_env_config()
{
char *config = getenv("XDEBUG_CONFIG");
xdebug_arg *parts;
int i;
/*
XDEBUG_CONFIG format:
XDEBUG_CONFIG=var=val var=val
*/
xdebug_env_key();
if (!config) {
return;
}
parts = (xdebug_arg*) xdmalloc(sizeof(xdebug_arg));
xdebug_arg_init(parts);
xdebug_explode(" ", config, parts, -1);
for (i = 0; i < parts->c; ++i) {
char *name = NULL;
char *envvar = parts->args[i];
char *envval = NULL;
char *eq = strchr(envvar, '=');
if (!eq || !*eq) {
continue;
}
*eq = 0;
envval = eq + 1;
if (!*envval) {
continue;
}
if (strcasecmp(envvar, "remote_enable") == 0) {
name = "xdebug.remote_enable";
} else
if (strcasecmp(envvar, "remote_port") == 0) {
name = "xdebug.remote_port";
} else
if (strcasecmp(envvar, "remote_host") == 0) {
name = "xdebug.remote_host";
} else
if (strcasecmp(envvar, "remote_handler") == 0) {
name = "xdebug.remote_handler";
} else
if (strcasecmp(envvar, "remote_mode") == 0) {
name = "xdebug.remote_mode";
} else
if (strcasecmp(envvar, "idekey") == 0) {
name = "xdebug.idekey";
}
if (name) {
zend_alter_ini_entry(name, strlen(name) + 1, envval, strlen(envval), PHP_INI_SYSTEM, PHP_INI_STAGE_ACTIVATE);
}
}
xdebug_arg_dtor(parts);
}
PHP_MINIT_FUNCTION(xdebug)
{
ZEND_INIT_MODULE_GLOBALS(xdebug, php_xdebug_init_globals, php_xdebug_shutdown_globals);
REGISTER_INI_ENTRIES();
#ifdef ZEND_ENGINE_2
# if PHP_MINOR_VERSION >= 1
zend_vm_use_old_executor();
# endif
#endif
/* get xdebug ini entries from the environment also */
xdebug_env_config();
/* Redirect compile and execute functions to our own */
old_compile_file = zend_compile_file;
zend_compile_file = xdebug_compile_file;
xdebug_old_execute = zend_execute;
zend_execute = xdebug_execute;
xdebug_old_execute_internal = zend_execute_internal;
zend_execute_internal = xdebug_execute_internal;
/* Replace error handler callback with our own */
old_error_cb = zend_error_cb;
new_error_cb = xdebug_error_cb;
/* Overload the "exit" opcode */
#ifdef ZEND_ENGINE_2
old_exit_handler = zend_opcode_handlers[ZEND_EXIT];
zend_opcode_handlers[ZEND_EXIT] = xdebug_exit_handler;
old_jmp_handler = zend_opcode_handlers[ZEND_JMP];
old_jmpz_handler = zend_opcode_handlers[ZEND_JMPZ];
old_is_identical_handler = zend_opcode_handlers[ZEND_IS_IDENTICAL];
old_is_not_identical_handler = zend_opcode_handlers[ZEND_IS_NOT_IDENTICAL];
old_is_equal_handler = zend_opcode_handlers[ZEND_IS_EQUAL];
old_is_not_equal_handler = zend_opcode_handlers[ZEND_IS_NOT_EQUAL];
old_is_smaller_handler = zend_opcode_handlers[ZEND_IS_SMALLER];
old_is_smaller_or_equal_handler = zend_opcode_handlers[ZEND_IS_SMALLER_OR_EQUAL];
zend_opcode_handlers[ZEND_JMP] = xdebug_jmp_handler;
zend_opcode_handlers[ZEND_JMPZ] = xdebug_jmpz_handler;
zend_opcode_handlers[ZEND_IS_IDENTICAL] = xdebug_is_identical_handler;
zend_opcode_handlers[ZEND_IS_NOT_IDENTICAL] = xdebug_is_not_identical_handler;
zend_opcode_handlers[ZEND_IS_EQUAL] = xdebug_is_equal_handler;
zend_opcode_handlers[ZEND_IS_NOT_EQUAL] = xdebug_is_not_equal_handler;
zend_opcode_handlers[ZEND_IS_SMALLER] = xdebug_is_smaller_handler;
zend_opcode_handlers[ZEND_IS_SMALLER_OR_EQUAL] = xdebug_is_smaller_or_equal_handler;
#endif
if (zend_xdebug_initialised == 0) {
zend_error(E_WARNING, "Xdebug MUST be loaded as a Zend extension");
}
REGISTER_LONG_CONSTANT("XDEBUG_TRACE_APPEND", XDEBUG_TRACE_OPTION_APPEND, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("XDEBUG_TRACE_COMPUTERIZED", XDEBUG_TRACE_OPTION_COMPUTERIZED, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("XDEBUG_CC_UNUSED", XDEBUG_CC_OPTION_UNUSED, CONST_CS | CONST_PERSISTENT);
XG(breakpoint_count) = 0;
return SUCCESS;
}
PHP_MSHUTDOWN_FUNCTION(xdebug)
{
/* Reset compile, execute and error callbacks */
zend_compile_file = old_compile_file;
zend_execute = xdebug_old_execute;
zend_execute_internal = xdebug_old_execute_internal;
zend_error_cb = old_error_cb;
return SUCCESS;
}
void used_var_dtor (void *elem)
{
char *s = elem;
if (s) {
xdfree(s);
}
}
void stack_element_dtor (void *dummy, void *elem)
{
int i;
function_stack_entry *e = elem;
e->refcount--;
if (e->refcount == 0) {
if (e->function.function) {
xdfree(e->function.function);
}
if (e->function.class) {
xdfree(e->function.class);
}
if (e->filename) {
xdfree(e->filename);
}
if (e->var) {
for (i = 0; i < e->varc; i++) {
if (e->var[i].name) {
xdfree(e->var[i].name);
}
}
xdfree(e->var);
}
if (e->include_filename) {
xdfree(e->include_filename);
}
if (e->used_vars) {
xdebug_hash_destroy(e->used_vars);
}
if (e->profile.call_list) {
xdebug_llist_destroy(e->profile.call_list, NULL);
}
xdfree(e);
}
}
PHP_RINIT_FUNCTION(xdebug)
{
zend_function *orig;
char *idekey = zend_ini_string("xdebug.idekey", sizeof("xdebug.idekey"), 0);
XG(level) = 0;
XG(do_trace) = 0;
XG(do_code_coverage) = 0;
XG(code_coverage) = xdebug_hash_alloc(32, xdebug_coverage_file_dtor);
XG(stack) = xdebug_llist_alloc(stack_element_dtor);
XG(trace_file) = NULL;
XG(tracefile_name) = NULL;
XG(profile_file) = NULL;
XG(error_handler) = NULL;
XG(prev_memory) = 0;
XG(function_count) = 0;
if (idekey && *idekey) {
if (XG(ide_key)) {
xdfree(XG(ide_key));
}
XG(ide_key) = xdstrdup(idekey);
}
/* Only enabled extended info when it is not disabled */
CG(extended_info) = XG(extended_info);
if (XG(default_enable)) {
zend_error_cb = new_error_cb;
#ifdef ZEND_ENGINE_2
zend_throw_exception_hook = xdebug_throw_exception_hook;
#endif
}
XG(remote_enabled) = 0;
XG(profiler_enabled) = 0;
XG(breakpoints_allowed) = 1;
if (XG(auto_trace) && XG(trace_output_dir) && strlen(XG(trace_output_dir))) {
/* In case we do an auto-trace we are not interested in the return
* value, but we still have to free it. */
xdfree(xdebug_start_trace(NULL, XG(trace_options) TSRMLS_CC));
}
/* Initialize some debugger context properties */
XG(context).list.last_file = NULL;
XG(context).list.last_line = 0;
XG(context).do_break = 0;
XG(context).do_step = 0;
XG(context).do_next = 0;
XG(context).do_finish = 0;
/* Initialize dump superglobals */
XG(dumped) = 0;
/* Initialize start time */
XG(start_time) = xdebug_get_utime();
zend_hash_find(EG(function_table), "var_dump", 9, (void **)&orig);
orig->internal_function.handler = zif_xdebug_var_dump;
return SUCCESS;
}
#ifdef ZEND_ENGINE_2
ZEND_MODULE_POST_ZEND_DEACTIVATE_D(xdebug)
{
TSRMLS_FETCH();
#else
PHP_RSHUTDOWN_FUNCTION(xdebug)
{
#endif
xdebug_llist_destroy(XG(stack), NULL);
XG(stack) = NULL;
if (XG(do_trace) && XG(trace_file)) {
xdebug_stop_trace(TSRMLS_C);
}
if (XG(profile_file)) {
fclose(XG(profile_file));
}
if (XG(error_handler)) {
efree(XG(error_handler));
}
if (XG(ide_key)) {
xdfree(XG(ide_key));
XG(ide_key) = NULL;
}
XG(level) = 0;
XG(do_trace) = 0;
XG(do_code_coverage) = 0;
xdebug_hash_destroy(XG(code_coverage));
if (XG(remote_enabled)) {
XG(context).handler->remote_deinit(&(XG(context)));
xdebug_close_socket(XG(context).socket);
if (XG(context).program_name) {
xdfree(XG(context).program_name);
}
}
if (XG(context.list.last_file)) {
xdfree(XG(context).list.last_file);
}
return SUCCESS;
}
PHP_MINFO_FUNCTION(xdebug)
{
xdebug_remote_handler_info *ptr = xdebug_handlers_get();
php_info_print_table_start();
php_info_print_table_header(2, "xdebug support", "enabled");
php_info_print_table_row(2, "Version", XDEBUG_VERSION);
php_info_print_table_end();
if (zend_xdebug_initialised == 0) {
php_info_print_table_start();
php_info_print_table_header(1, "XDEBUG NOT LOADED AS ZEND EXTENSION");
php_info_print_table_end();
}
php_info_print_table_start();
php_info_print_table_header(2, "Supported protocols", "Revision");
while (ptr->name) {
php_info_print_table_row(2, ptr->description, ptr->handler.get_revision());
ptr++;
}
php_info_print_table_end();
DISPLAY_INI_ENTRIES();
}
void xdebug_build_fname(xdebug_func *tmp, zend_execute_data *edata TSRMLS_DC)
{
memset(tmp, 0, sizeof(xdebug_func));
if (edata) {
if (edata->function_state.function->common.function_name) {
#if ZEND_EXTENSION_API_NO < 90000000
if (edata->ce) {
tmp->type = XFUNC_STATIC_MEMBER;
tmp->class = xdstrdup(edata->ce->name);
} else if (edata->object.ptr) {
tmp->type = XFUNC_MEMBER;
tmp->class = xdstrdup(edata->object.ptr->value.obj.ce->name);
} else {
tmp->type = XFUNC_NORMAL;
}
#else
if (edata->object) {
tmp->type = XFUNC_MEMBER;
if (edata->function_state.function->common.scope) { /* __autoload has no scope */
tmp->class = xdstrdup(edata->function_state.function->common.scope->name);
}
} else if (EG(scope) && edata->function_state.function->common.scope && edata->function_state.function->common.scope->name) {
tmp->type = XFUNC_STATIC_MEMBER;
tmp->class = xdstrdup(edata->function_state.function->common.scope->name);
} else {
tmp->type = XFUNC_NORMAL;
}
#endif
tmp->function = xdstrdup(edata->function_state.function->common.function_name);
} else {
switch (edata->opline->op2.u.constant.value.lval) {
case ZEND_EVAL:
tmp->type = XFUNC_EVAL;
break;
case ZEND_INCLUDE:
tmp->type = XFUNC_INCLUDE;
break;
case ZEND_REQUIRE:
tmp->type = XFUNC_REQUIRE;
break;
case ZEND_INCLUDE_ONCE:
tmp->type = XFUNC_INCLUDE_ONCE;
break;
case ZEND_REQUIRE_ONCE:
tmp->type = XFUNC_REQUIRE_ONCE;
break;
default:
tmp->type = XFUNC_UNKNOWN;
break;
}
}
}
}
static void trace_function_begin(function_stack_entry *fse, int function_nr TSRMLS_DC)
{
if (XG(do_trace) && XG(trace_file)) {
char *t = return_trace_stack_frame_begin(fse, function_nr TSRMLS_CC);
fprintf(XG(trace_file), "%s", t);
fflush(XG(trace_file));
xdfree(t);
}
}
static void trace_function_end(function_stack_entry *fse, int function_nr TSRMLS_DC)
{
if (XG(do_trace) && XG(trace_file)) {
char *t = return_trace_stack_frame_end(fse, function_nr TSRMLS_CC);
fprintf(XG(trace_file), "%s", t);
fflush(XG(trace_file));
xdfree(t);
}
}
static function_stack_entry *add_stack_frame(zend_execute_data *zdata, zend_op_array *op_array, int type TSRMLS_DC)
{
function_stack_entry *tmp;
zend_op *cur_opcode;
zval **param;
void **p = EG(argument_stack).top_element-2;
int arg_count = (ulong) *p;
int i = 0;
tmp = xdmalloc (sizeof (function_stack_entry));
tmp->var = NULL;
tmp->varc = 0;
tmp->refcount = 1;
tmp->level = XG(level);
tmp->arg_done = 0;
tmp->used_vars = NULL;
tmp->user_defined = type;
tmp->filename = NULL;
tmp->include_filename = NULL;
tmp->profile.call_list = xdebug_llist_alloc(profile_call_entry_dtor);
tmp->op_array = op_array;
if (EG(current_execute_data) && EG(current_execute_data)->op_array) {
/* Normal function calls */
tmp->filename = xdstrdup(EG(current_execute_data)->op_array->filename);
XG(function_count)++;
} else if (EG(current_execute_data) &&
EG(current_execute_data)->prev_execute_data &&
XDEBUG_LLIST_TAIL(XG(stack))
) {
/* Ugly hack for call_user_*() type function calls */
zend_function *tmpf = EG(current_execute_data)->prev_execute_data->function_state.function;
if (tmpf && (tmpf->common.type != 3) && tmpf->common.function_name) {
if (
(strcmp(tmpf->common.function_name, "call_user_func") == 0) ||
(strcmp(tmpf->common.function_name, "call_user_func_array") == 0) ||
(strcmp(tmpf->common.function_name, "call_user_func_method") == 0) ||
(strcmp(tmpf->common.function_name, "call_user_func_method_array") == 0)
) {
tmp->filename = xdstrdup(((function_stack_entry*) XDEBUG_LLIST_VALP(XDEBUG_LLIST_TAIL(XG(stack))))->filename);
}
}
XG(function_count)++;
}
if (!tmp->filename) {
/* Includes/main script etc */
tmp->filename = (op_array && op_array->filename) ? xdstrdup(op_array->filename): NULL;
}
/* Call user function locations */
if (!tmp->filename && XDEBUG_LLIST_TAIL(XG(stack)) && XDEBUG_LLIST_VALP(XDEBUG_LLIST_TAIL(XG(stack))) ) {
tmp->filename = xdstrdup(((function_stack_entry*) XDEBUG_LLIST_VALP(XDEBUG_LLIST_TAIL(XG(stack))))->filename);
}
#if MEMORY_LIMIT
tmp->prev_memory = XG(prev_memory);
tmp->memory = AG(allocated_memory);
XG(prev_memory) = tmp->memory;
#else
tmp->memory = 0;
tmp->prev_memory = 0;
#endif
tmp->time = xdebug_get_utime();
tmp->lineno = 0;
xdebug_build_fname(&(tmp->function), zdata TSRMLS_CC);
if (!tmp->function.type) {
tmp->function.function = xdstrdup("{main}");
tmp->function.class = NULL;
tmp->function.type = XFUNC_NORMAL;
} else if (tmp->function.type & XFUNC_INCLUDES) {
cur_opcode = *EG(opline_ptr);
tmp->lineno = cur_opcode->lineno;
if (tmp->function.type == XFUNC_EVAL) {
int is_var;
tmp->include_filename = get_zval_value(get_zval(&zdata->opline->op1, zdata->Ts, &is_var), 0);
} else if (XG(collect_includes)) {
tmp->include_filename = xdstrdup(zend_get_executed_filename(TSRMLS_C));
}
} else {
if (EG(opline_ptr)) {
cur_opcode = *EG(opline_ptr);
if (cur_opcode) {
tmp->lineno = cur_opcode->lineno;
}
}
if (XG(collect_params)) {
tmp->var = xdmalloc(arg_count * sizeof (xdebug_var));
for (i = 0; i < arg_count; i++) {
tmp->var[tmp->varc].name = NULL;
if (zend_ptr_stack_get_arg(tmp->varc + 1, (void**) ¶m TSRMLS_CC) == SUCCESS) {
tmp->var[tmp->varc].addr = *param;
} else {
tmp->var[tmp->varc].addr = NULL;
}
tmp->varc++;
}
}
}
if (XG(do_code_coverage)) {
xdebug_count_line(tmp->filename, tmp->lineno, 0 TSRMLS_CC);
}
if (XDEBUG_LLIST_TAIL(XG(stack))) {
function_stack_entry *prev = XDEBUG_LLIST_VALP(XDEBUG_LLIST_TAIL(XG(stack)));
tmp->prev = prev;
} else {
tmp->prev = 0;
}
xdebug_llist_insert_next(XG(stack), XDEBUG_LLIST_TAIL(XG(stack)), tmp);
return tmp;
}
static void add_used_variables(function_stack_entry *fse, zend_op_array *op_array)
{
int i = 0;
int j = op_array->size;
if (!fse->used_vars) {
fse->used_vars = xdebug_hash_alloc(64, used_var_dtor);
}
while (i < j) {
if (op_array->opcodes[i].opcode == ZEND_FETCH_R || op_array->opcodes[i].opcode == ZEND_FETCH_W) {
if (op_array->opcodes[i].op1.op_type == IS_CONST) {
if (Z_TYPE(op_array->opcodes[i].op1.u.constant) == IS_STRING) {
xdebug_hash_update(
fse->used_vars,
op_array->opcodes[i].op1.u.constant.value.str.val,
op_array->opcodes[i].op1.u.constant.value.str.len,
xdstrdup(op_array->opcodes[i].op1.u.constant.value.str.val)
);
} else { /* unusual but not impossible situation */
int use_copy;
zval tmp_zval;
zend_make_printable_zval(&(op_array->opcodes[i].op1.u.constant), &tmp_zval, &use_copy);
xdebug_hash_update(fse->used_vars, tmp_zval.value.str.val, tmp_zval.value.str.len, xdstrdup(tmp_zval.value.str.val));
zval_dtor(&tmp_zval);
}
}
}
i++;
}
}
static int handle_breakpoints(function_stack_entry *fse, int breakpoint_type)
{
xdebug_brk_info *extra_brk_info = NULL;
char *tmp_name = NULL;
TSRMLS_FETCH();
/* Function breakpoints */
if (fse->function.type == XFUNC_NORMAL) {
if (xdebug_hash_find(XG(context).function_breakpoints, fse->function.function, strlen(fse->function.function), (void *) &extra_brk_info)) {
/* Yup, breakpoint found, we call the handler when it's not
* disabled*/
if (!extra_brk_info->disabled && (extra_brk_info->function_break_type == breakpoint_type)) {
if (fse->user_defined == XDEBUG_INTERNAL || (breakpoint_type == XDEBUG_BRK_FUNC_RETURN)) {
if (!XG(context).handler->remote_breakpoint(&(XG(context)), XG(stack), fse->filename, fse->lineno, XDEBUG_BREAK)) {
XG(remote_enabled) = 0;
return 0;
}
} else {
XG(context).do_break = 1;
}
}
}
}
/* class->function breakpoints */
else if (fse->function.type == XFUNC_MEMBER || fse->function.type == XFUNC_STATIC_MEMBER) {
tmp_name = xdebug_sprintf("%s::%s", fse->function.class, fse->function.function);
if (xdebug_hash_find(XG(context).class_breakpoints, tmp_name, strlen(tmp_name), (void *) &extra_brk_info)) {
/* Yup, breakpoint found, call handler if the breakpoint is not
* disabled */
if (!extra_brk_info->disabled) {
XG(context).do_break = 1;
}
}
xdfree(tmp_name);
}
return 1;
}
#if PHP_API_VERSION >= 20030820
#define COOKIE_ENCODE , 1
#else
#define COOKIE_ENCODE
#endif
void xdebug_execute(zend_op_array *op_array TSRMLS_DC)
{
zval **dummy;
zend_execute_data *edata = EG(current_execute_data);
function_stack_entry *fse, *xfse;
char *magic_cookie = NULL;
int do_return = (XG(do_trace) && XG(trace_file));
int function_nr = 0;
xdebug_llist_element *le;
if (XG(level) == 0) {
/* Set session cookie if requested */
if (
((
PG(http_globals)[TRACK_VARS_GET] &&
zend_hash_find(PG(http_globals)[TRACK_VARS_GET]->value.ht, "XDEBUG_SESSION_START", sizeof("XDEBUG_SESSION_START"), (void **) &dummy) == SUCCESS
) || (
PG(http_globals)[TRACK_VARS_POST] &&
zend_hash_find(PG(http_globals)[TRACK_VARS_POST]->value.ht, "XDEBUG_SESSION_START", sizeof("XDEBUG_SESSION_START"), (void **) &dummy) == SUCCESS
)) && !(
PG(http_globals)[TRACK_VARS_COOKIE] &&
zend_hash_find(PG(http_globals)[TRACK_VARS_COOKIE]->value.ht, "XDEBUG_SESSION", sizeof("XDEBUG_SESSION"), (void **) &dummy) == SUCCESS
)
) {
convert_to_string_ex(dummy);
magic_cookie = xdstrdup(Z_STRVAL_PP(dummy));
if (XG(ide_key)) {
xdfree(XG(ide_key));
}
XG(ide_key) = xdstrdup(Z_STRVAL_PP(dummy));
php_setcookie("XDEBUG_SESSION", sizeof("XDEBUG_SESSION"), Z_STRVAL_PP(dummy), Z_STRLEN_PP(dummy), time(NULL) + 3600, "/", 1, NULL, 0, 0 COOKIE_ENCODE TSRMLS_CC);
} else if (
PG(http_globals)[TRACK_VARS_COOKIE] &&
zend_hash_find(PG(http_globals)[TRACK_VARS_COOKIE]->value.ht, "XDEBUG_SESSION", sizeof("XDEBUG_SESSION"), (void **) &dummy) == SUCCESS