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xdebug.c
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xdebug.c
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/*
+----------------------------------------------------------------------+
| Xdebug |
+----------------------------------------------------------------------+
| Copyright (c) 2002-2012 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 "main/php_ini.h"
#include "ext/standard/head.h"
#include "ext/standard/html.h"
#include "ext/standard/info.h"
#include "ext/standard/php_string.h"
#include "php_globals.h"
#include "main/php_output.h"
#include "ext/standard/php_var.h"
#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_stack.h"
#include "xdebug_superglobals.h"
#include "xdebug_tracing.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 replacement functions */
void (*xdebug_old_error_cb)(int type, const char *error_filename, const uint error_lineno, const char *format, va_list args);
void (*xdebug_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);
static int xdebug_header_handler(sapi_header_struct *h XG_SAPI_HEADER_OP_DC, sapi_headers_struct *s TSRMLS_DC);
static int xdebug_ub_write(const char *string, unsigned int lenght TSRMLS_DC);
static void xdebug_throw_exception_hook(zval *exception TSRMLS_DC);
int xdebug_exit_handler(ZEND_OPCODE_HANDLER_ARGS);
int zend_xdebug_initialised = 0;
int zend_xdebug_global_offset = -1;
int (*xdebug_orig_header_handler)(sapi_header_struct *h XG_SAPI_HEADER_OP_DC, sapi_headers_struct *s TSRMLS_DC);
int (*xdebug_orig_ub_write)(const char *string, unsigned int len TSRMLS_DC);
static int xdebug_trigger_enabled(int setting, char *var_name TSRMLS_DC);
zend_function_entry xdebug_functions[] = {
PHP_FE(xdebug_get_stack_depth, NULL)
PHP_FE(xdebug_get_function_stack, NULL)
PHP_FE(xdebug_get_formatted_function_stack, NULL)
PHP_FE(xdebug_print_function_stack, NULL)
PHP_FE(xdebug_get_declared_vars, 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_debug_zval_stdout, 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)
PHP_FE(xdebug_get_profiler_filename, NULL)
PHP_FE(xdebug_dump_aggr_profiling_data, NULL)
PHP_FE(xdebug_clear_aggr_profiling_data, NULL)
#if HAVE_PHP_MEMORY_USAGE
PHP_FE(xdebug_memory_usage, NULL)
PHP_FE(xdebug_peak_memory_usage, NULL)
#endif
PHP_FE(xdebug_time_index, NULL)
PHP_FE(xdebug_start_error_collection, NULL)
PHP_FE(xdebug_stop_error_collection, NULL)
PHP_FE(xdebug_get_collected_errors, 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)
PHP_FE(xdebug_get_headers, 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),
PHP_RSHUTDOWN(xdebug),
PHP_MINFO(xdebug),
XDEBUG_VERSION,
#if (PHP_MAJOR_VERSION == 5 && PHP_MINOR_VERSION >= 2) || PHP_MAJOR_VERSION >= 6
NO_MODULE_GLOBALS,
#endif
ZEND_MODULE_POST_ZEND_DEACTIVATE_N(xdebug),
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(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;
}
#ifdef P_tmpdir
# define XDEBUG_TEMP_DIR P_tmpdir
#else
# define XDEBUG_TEMP_DIR "/tmp"
#endif
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_BOOLEAN("xdebug.trace_enable_trigger", "0", PHP_INI_SYSTEM|PHP_INI_PERDIR, OnUpdateBool, trace_enable_trigger, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_ENTRY("xdebug.trace_output_dir", XDEBUG_TEMP_DIR, PHP_INI_ALL, OnUpdateString, trace_output_dir, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_ENTRY("xdebug.trace_output_name", "trace.%c", PHP_INI_ALL, OnUpdateString, trace_output_name, zend_xdebug_globals, xdebug_globals)
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)
STD_PHP_INI_BOOLEAN("xdebug.coverage_enable", "1", PHP_INI_SYSTEM, OnUpdateBool, coverage_enable, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_BOOLEAN("xdebug.collect_includes","1", PHP_INI_ALL, OnUpdateBool, collect_includes, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_ENTRY("xdebug.collect_params", "0", PHP_INI_ALL, OnUpdateLong, 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.collect_vars", "0", PHP_INI_ALL, OnUpdateBool, collect_vars, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_BOOLEAN("xdebug.collect_assignments", "0", PHP_INI_ALL, OnUpdateBool, collect_assignments, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_BOOLEAN("xdebug.default_enable", "1", PHP_INI_ALL, 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.file_link_format", "", PHP_INI_ALL, OnUpdateString, file_link_format, 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)
STD_PHP_INI_ENTRY("xdebug.max_nesting_level", "100", PHP_INI_ALL, OnUpdateLong, max_nesting_level, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_BOOLEAN("xdebug.overload_var_dump", "1", PHP_INI_SYSTEM|PHP_INI_PERDIR, OnUpdateBool, overload_var_dump, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_BOOLEAN("xdebug.show_exception_trace", "0", PHP_INI_ALL, OnUpdateBool, show_ex_trace, zend_xdebug_globals, xdebug_globals)
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", XDEBUG_TEMP_DIR, PHP_INI_SYSTEM|PHP_INI_PERDIR, OnUpdateString, profiler_output_dir, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_ENTRY("xdebug.profiler_output_name", "cachegrind.out.%p", PHP_INI_SYSTEM|PHP_INI_PERDIR, OnUpdateString, profiler_output_name, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_BOOLEAN("xdebug.profiler_enable_trigger", "0", PHP_INI_SYSTEM|PHP_INI_PERDIR, OnUpdateBool, profiler_enable_trigger, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_BOOLEAN("xdebug.profiler_append", "0", PHP_INI_SYSTEM|PHP_INI_PERDIR, OnUpdateBool, profiler_append, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_BOOLEAN("xdebug.profiler_aggregate", "0", PHP_INI_SYSTEM|PHP_INI_PERDIR, OnUpdateBool, profiler_aggregate, 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)
STD_PHP_INI_ENTRY("xdebug.remote_port", "9000", PHP_INI_ALL, OnUpdateLong, remote_port, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_BOOLEAN("xdebug.remote_autostart","0", PHP_INI_ALL, OnUpdateBool, remote_autostart, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_BOOLEAN("xdebug.remote_connect_back","0", PHP_INI_ALL, OnUpdateBool, remote_connect_back, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_ENTRY("xdebug.remote_log", "", PHP_INI_ALL, OnUpdateString, remote_log, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_ENTRY("xdebug.idekey", "", PHP_INI_ALL, OnUpdateString, ide_key_setting, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_ENTRY("xdebug.remote_cookie_expire_time", "3600", PHP_INI_ALL, OnUpdateLong, remote_cookie_expire_time, zend_xdebug_globals, xdebug_globals)
/* Variable display settings */
STD_PHP_INI_ENTRY("xdebug.var_display_max_children", "128", PHP_INI_ALL, OnUpdateLong, display_max_children, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_ENTRY("xdebug.var_display_max_data", "512", PHP_INI_ALL, OnUpdateLong, display_max_data, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_ENTRY("xdebug.var_display_max_depth", "3", PHP_INI_ALL, OnUpdateLong, display_max_depth, zend_xdebug_globals, xdebug_globals)
STD_PHP_INI_ENTRY("xdebug.cli_color", "0", PHP_INI_ALL, OnUpdateBool, cli_color, zend_xdebug_globals, xdebug_globals)
/* Scream support */
STD_PHP_INI_BOOLEAN("xdebug.scream", "0", PHP_INI_ALL, OnUpdateBool, do_scream, zend_xdebug_globals, xdebug_globals)
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->coverage_enable = 0;
xg->previous_filename = "";
xg->previous_file = NULL;
xg->do_code_coverage = 0;
xg->breakpoint_count = 0;
xg->ide_key = NULL;
xg->output_is_tty = OUTPUT_NOT_CHECKED;
xdebug_llist_init(&xg->server, xdebug_superglobals_dump_dtor);
xdebug_llist_init(&xg->get, xdebug_superglobals_dump_dtor);
xdebug_llist_init(&xg->post, xdebug_superglobals_dump_dtor);
xdebug_llist_init(&xg->cookie, xdebug_superglobals_dump_dtor);
xdebug_llist_init(&xg->files, xdebug_superglobals_dump_dtor);
xdebug_llist_init(&xg->env, xdebug_superglobals_dump_dtor);
xdebug_llist_init(&xg->request, xdebug_superglobals_dump_dtor);
xdebug_llist_init(&xg->session, xdebug_superglobals_dump_dtor);
/* Get reserved offset */
xg->reserved_offset = zend_xdebug_global_offset;
/* Override header generation in SAPI */
if (sapi_module.header_handler != xdebug_header_handler) {
xdebug_orig_header_handler = sapi_module.header_handler;
sapi_module.header_handler = xdebug_header_handler;
}
xg->headers = NULL;
/* Capturing output */
if (sapi_module.ub_write != xdebug_ub_write) {
xdebug_orig_ub_write = sapi_module.ub_write;
sapi_module.ub_write = xdebug_ub_write;
}
}
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);
}
char *xdebug_env_key(TSRMLS_D)
{
char *ide_key;
ide_key = XG(ide_key_setting);
if (ide_key && *ide_key) {
return ide_key;
}
ide_key = getenv("DBGP_IDEKEY");
if (ide_key && *ide_key) {
return ide_key;
}
ide_key = getenv("USER");
if (ide_key && *ide_key) {
return ide_key;
}
ide_key = getenv("USERNAME");
if (ide_key && *ide_key) {
return ide_key;
}
return NULL;
}
void xdebug_env_config(TSRMLS_D)
{
char *config = getenv("XDEBUG_CONFIG");
xdebug_arg *parts;
int i;
/*
XDEBUG_CONFIG format:
XDEBUG_CONFIG=var=val var=val
*/
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) {
if (XG(ide_key)) {
xdfree(XG(ide_key));
}
XG(ide_key) = xdstrdup(envval);
} else
if (strcasecmp(envvar, "profiler_enable") == 0) {
name = "xdebug.profiler_enable";
} else
if (strcasecmp(envvar, "profiler_output_dir") == 0) {
name = "xdebug.profiler_output_dir";
} else
if (strcasecmp(envvar, "profiler_output_name") == 0) {
name = "xdebug.profiler_output_name";
} else
if (strcasecmp(envvar, "profiler_enable_trigger") == 0) {
name = "xdebug.profiler_enable_trigger";
} else
if (strcasecmp(envvar, "remote_log") == 0) {
name = "xdebug.remote_log";
} else
if (strcasecmp(envvar, "remote_cookie_expire_time") == 0) {
name = "xdebug.remote_cookie_expire_time";
}
else if (strcasecmp(envvar, "cli_color") == 0) {
name = "xdebug.cli_color";
}
if (name) {
zend_alter_ini_entry(name, strlen(name) + 1, envval, strlen(envval), PHP_INI_SYSTEM, PHP_INI_STAGE_ACTIVATE);
}
}
xdebug_arg_dtor(parts);
}
static int xdebug_silence_handler(ZEND_OPCODE_HANDLER_ARGS)
{
zend_op *cur_opcode = *EG(opline_ptr);
if (XG(do_scream)) {
execute_data->opline++;
if (cur_opcode->opcode == ZEND_BEGIN_SILENCE) {
XG(in_at) = 1;
} else {
XG(in_at) = 0;
}
return ZEND_USER_OPCODE_CONTINUE;
}
return ZEND_USER_OPCODE_DISPATCH;
}
static int xdebug_include_or_eval_handler(ZEND_OPCODE_HANDLER_ARGS)
{
zend_op *opline = execute_data->opline;
#if PHP_VERSION_ID >= 50399
if (opline->extended_value == ZEND_EVAL) {
#else
if (Z_LVAL(opline->op2.u.constant) == ZEND_EVAL) {
#endif
zval *inc_filename;
zval tmp_inc_filename;
int is_var;
inc_filename = xdebug_get_zval(execute_data, opline->XDEBUG_TYPE(op1), &opline->op1, execute_data->Ts, &is_var);
/* If there is no inc_filename, we're just bailing out instead */
if (!inc_filename) {
return ZEND_USER_OPCODE_DISPATCH;
}
if (inc_filename->type != IS_STRING) {
tmp_inc_filename = *inc_filename;
zval_copy_ctor(&tmp_inc_filename);
convert_to_string(&tmp_inc_filename);
inc_filename = &tmp_inc_filename;
}
/* Now let's store this info */
if (XG(last_eval_statement)) {
efree(XG(last_eval_statement));
}
XG(last_eval_statement) = estrndup(Z_STRVAL_P(inc_filename), Z_STRLEN_P(inc_filename));
if (inc_filename == &tmp_inc_filename) {
zval_dtor(&tmp_inc_filename);
}
}
return ZEND_USER_OPCODE_DISPATCH;
}
int xdebug_is_output_tty(TSRMLS_D)
{
if (XG(output_is_tty) == OUTPUT_NOT_CHECKED) {
#ifndef PHP_WIN32
XG(output_is_tty) = isatty(STDOUT_FILENO);
#else
XG(output_is_tty) = getenv("ANSICON");
#endif
}
return (XG(output_is_tty));
}
#if 0
int static xdebug_stack_insert_top(zend_stack *stack, const void *element, int size)
{
int i;
if (stack->top >= stack->max) { /* we need to allocate more memory */
stack->elements = (void **) erealloc(stack->elements,
(sizeof(void **) * (stack->max += 64)));
if (!stack->elements) {
return FAILURE;
}
}
/* move all existing ones up */
for (i = stack->top; i >= 0; i--) {
stack->elements[i + 1] = stack->elements[i];
}
/* replace top handler */
stack->elements[0] = (void *) emalloc(size);
memcpy(stack->elements[0], element, size);
return stack->top++;
}
#endif
PHP_MINIT_FUNCTION(xdebug)
{
zend_extension dummy_ext;
ZEND_INIT_MODULE_GLOBALS(xdebug, php_xdebug_init_globals, php_xdebug_shutdown_globals);
REGISTER_INI_ENTRIES();
/* initialize aggregate call information hash */
zend_hash_init_ex(&XG(aggr_calls), 50, NULL, (dtor_func_t) xdebug_profile_aggr_call_entry_dtor, 1, 0);
/* 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 */
xdebug_old_error_cb = zend_error_cb;
xdebug_new_error_cb = xdebug_error_cb;
/* Get reserved offset */
zend_xdebug_global_offset = zend_get_resource_handle(&dummy_ext);
/* Overload the "exit" opcode */
XDEBUG_SET_OPCODE_OVERRIDE_ASSIGN(exit, ZEND_EXIT);
/* Overload opcodes for code coverage */
if (XG(coverage_enable)) {
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_JMP);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_JMPZ);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_JMPZ_EX);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_JMPNZ);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_IS_IDENTICAL);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_IS_NOT_IDENTICAL);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_IS_EQUAL);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_IS_NOT_EQUAL);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_IS_SMALLER);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_IS_SMALLER_OR_EQUAL);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_BOOL_NOT);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_ADD);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_SUB);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_MUL);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_DIV);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_ADD_ARRAY_ELEMENT);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_RETURN);
#if PHP_VERSION_ID >= 50400
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_RETURN_BY_REF);
#endif
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_EXT_STMT);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_RAISE_ABSTRACT_ERROR);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_SEND_VAR);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_SEND_VAR_NO_REF);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_SEND_VAL);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_NEW);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_EXT_FCALL_BEGIN);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_CATCH);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_BOOL);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_ADD_CHAR);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_ADD_STRING);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_INIT_ARRAY);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_FETCH_DIM_R);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_FETCH_OBJ_R);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_FETCH_OBJ_W);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_FETCH_OBJ_FUNC_ARG);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_FETCH_DIM_FUNC_ARG);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_FETCH_DIM_UNSET);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_FETCH_OBJ_UNSET);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_FETCH_CLASS);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_FETCH_CONSTANT);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_CONCAT);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_ISSET_ISEMPTY_DIM_OBJ);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_PRE_INC_OBJ);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_SWITCH_FREE);
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_QM_ASSIGN);
#if (PHP_MAJOR_VERSION == 5 && PHP_MINOR_VERSION >= 3) || PHP_MAJOR_VERSION >= 6
XDEBUG_SET_OPCODE_OVERRIDE_COMMON(ZEND_DECLARE_LAMBDA_FUNCTION);
#endif
}
XDEBUG_SET_OPCODE_OVERRIDE_ASSIGN(include_or_eval, ZEND_INCLUDE_OR_EVAL);
XDEBUG_SET_OPCODE_OVERRIDE_ASSIGN(assign, ZEND_ASSIGN);
XDEBUG_SET_OPCODE_OVERRIDE_ASSIGN(assign_add, ZEND_ASSIGN_ADD);
XDEBUG_SET_OPCODE_OVERRIDE_ASSIGN(assign_sub, ZEND_ASSIGN_SUB);
XDEBUG_SET_OPCODE_OVERRIDE_ASSIGN(assign_mul, ZEND_ASSIGN_MUL);
XDEBUG_SET_OPCODE_OVERRIDE_ASSIGN(assign_div, ZEND_ASSIGN_DIV);
XDEBUG_SET_OPCODE_OVERRIDE_ASSIGN(assign_mod, ZEND_ASSIGN_MOD);
XDEBUG_SET_OPCODE_OVERRIDE_ASSIGN(assign_sl, ZEND_ASSIGN_SL);
XDEBUG_SET_OPCODE_OVERRIDE_ASSIGN(assign_sr, ZEND_ASSIGN_SR);
XDEBUG_SET_OPCODE_OVERRIDE_ASSIGN(assign_concat, ZEND_ASSIGN_CONCAT);
XDEBUG_SET_OPCODE_OVERRIDE_ASSIGN(assign_bw_or, ZEND_ASSIGN_BW_OR);
XDEBUG_SET_OPCODE_OVERRIDE_ASSIGN(assign_bw_and, ZEND_ASSIGN_BW_AND);
XDEBUG_SET_OPCODE_OVERRIDE_ASSIGN(assign_bw_xor, ZEND_ASSIGN_BW_XOR);
XDEBUG_SET_OPCODE_OVERRIDE_ASSIGN(assign_dim, ZEND_ASSIGN_DIM);
XDEBUG_SET_OPCODE_OVERRIDE_ASSIGN(assign_obj, ZEND_ASSIGN_OBJ);
XDEBUG_SET_OPCODE_OVERRIDE_ASSIGN(pre_inc, ZEND_PRE_INC);
XDEBUG_SET_OPCODE_OVERRIDE_ASSIGN(post_inc, ZEND_POST_INC);
XDEBUG_SET_OPCODE_OVERRIDE_ASSIGN(pre_dec, ZEND_PRE_DEC);
XDEBUG_SET_OPCODE_OVERRIDE_ASSIGN(post_dec, ZEND_POST_DEC);
XDEBUG_SET_OPCODE_OVERRIDE_ASSIGN(pre_inc_obj, ZEND_PRE_INC_OBJ);
XDEBUG_SET_OPCODE_OVERRIDE_ASSIGN(post_inc_obj, ZEND_POST_INC_OBJ);
XDEBUG_SET_OPCODE_OVERRIDE_ASSIGN(pre_dec_obj, ZEND_PRE_DEC_OBJ);
XDEBUG_SET_OPCODE_OVERRIDE_ASSIGN(post_dec_obj, ZEND_POST_DEC_OBJ);
zend_set_user_opcode_handler(ZEND_BEGIN_SILENCE, xdebug_silence_handler);
zend_set_user_opcode_handler(ZEND_END_SILENCE, xdebug_silence_handler);
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_TRACE_HTML", XDEBUG_TRACE_OPTION_HTML, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("XDEBUG_CC_UNUSED", XDEBUG_CC_OPTION_UNUSED, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("XDEBUG_CC_DEAD_CODE", XDEBUG_CC_OPTION_DEAD_CODE, CONST_CS | CONST_PERSISTENT);
XG(breakpoint_count) = 0;
XG(output_is_tty) = OUTPUT_NOT_CHECKED;
#ifndef ZTS
if (sapi_module.header_handler != xdebug_header_handler) {
xdebug_orig_header_handler = sapi_module.header_handler;
sapi_module.header_handler = xdebug_header_handler;
}
if (sapi_module.ub_write != xdebug_ub_write) {
xdebug_orig_ub_write = sapi_module.ub_write;
sapi_module.ub_write = xdebug_ub_write;
}
#endif
return SUCCESS;
}
PHP_MSHUTDOWN_FUNCTION(xdebug)
{
if (XG(profiler_aggregate)) {
xdebug_profiler_output_aggr_data(NULL TSRMLS_CC);
}
/* 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 = xdebug_old_error_cb;
zend_hash_destroy(&XG(aggr_calls));
#ifdef ZTS
ts_free_id(xdebug_globals_id);
#else
php_xdebug_shutdown_globals(&xdebug_globals TSRMLS_CC);
#endif
return SUCCESS;
}
static void xdebug_llist_string_dtor(void *dummy, void *elem)
{
char *s = elem;
if (s) {
xdfree(s);
}
}
static void xdebug_used_var_dtor(void *dummy, void *elem)
{
char *s = elem;
if (s) {
xdfree(s);
}
}
static void xdebug_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_llist_destroy(e->used_vars, NULL);
e->used_vars = NULL;
}
if (e->profile.call_list) {
xdebug_llist_destroy(e->profile.call_list, NULL);
e->profile.call_list = NULL;
}
xdfree(e);
}
}
#if PHP_VERSION_ID >= 50200
#define COOKIE_ENCODE , 1, 0
#elif PHP_API_VERSION >= 20030820
#define COOKIE_ENCODE , 1
#else
#define COOKIE_ENCODE
#endif
int xdebug_ub_write(const char *string, unsigned int length TSRMLS_DC)
{
if (XG(remote_enabled)) {
if (-1 == XG(context).handler->remote_stream_output(string, length TSRMLS_CC)) {
return 0;
}
}
return xdebug_orig_ub_write(string, length TSRMLS_CC);
}
PHP_RINIT_FUNCTION(xdebug)
{
zend_function *orig;
char *idekey;
zval **dummy;
/* Get the ide key for this session */
XG(ide_key) = NULL;
idekey = xdebug_env_key(TSRMLS_C);
if (idekey && *idekey) {
if (XG(ide_key)) {
xdfree(XG(ide_key));
}
XG(ide_key) = xdstrdup(idekey);
}
/* Get xdebug ini entries from the environment also,
this can override the idekey if one is set */
xdebug_env_config(TSRMLS_C);
XG(no_exec) = 0;
XG(level) = 0;
XG(do_trace) = 0;
XG(coverage_enable) = 0;
XG(do_code_coverage) = 0;
XG(code_coverage) = xdebug_hash_alloc(32, xdebug_coverage_file_dtor);
XG(stack) = xdebug_llist_alloc(xdebug_stack_element_dtor);
XG(trace_file) = NULL;
XG(tracefile_name) = NULL;
XG(profile_file) = NULL;
XG(profile_filename) = NULL;
XG(prev_memory) = 0;
XG(function_count) = -1;
XG(active_symbol_table) = NULL;
XG(This) = NULL;
XG(last_exception_trace) = NULL;
XG(last_eval_statement) = NULL;
XG(do_collect_errors) = 0;
XG(collected_errors) = xdebug_llist_alloc(xdebug_llist_string_dtor);
XG(reserved_offset) = zend_xdebug_global_offset;
/* {{{ Initialize auto globals in Zend Engine 2 */
zend_is_auto_global("_ENV", sizeof("_ENV")-1 TSRMLS_CC);
zend_is_auto_global("_GET", sizeof("_GET")-1 TSRMLS_CC);
zend_is_auto_global("_POST", sizeof("_POST")-1 TSRMLS_CC);
zend_is_auto_global("_COOKIE", sizeof("_COOKIE")-1 TSRMLS_CC);
zend_is_auto_global("_REQUEST", sizeof("_REQUEST")-1 TSRMLS_CC);
zend_is_auto_global("_FILES", sizeof("_FILES")-1 TSRMLS_CC);
zend_is_auto_global("_SERVER", sizeof("_SERVER")-1 TSRMLS_CC);
zend_is_auto_global("_SESSION", sizeof("_SESSION")-1 TSRMLS_CC);
/* }}} */
/* Check if we have this special get variable that stops a debugging
* request without executing any code */
if (
(
(
PG(http_globals)[TRACK_VARS_GET] &&
zend_hash_find(PG(http_globals)[TRACK_VARS_GET]->value.ht, "XDEBUG_SESSION_STOP_NO_EXEC", sizeof("XDEBUG_SESSION_STOP_NO_EXEC"), (void **) &dummy) == SUCCESS
) || (
PG(http_globals)[TRACK_VARS_POST] &&
zend_hash_find(PG(http_globals)[TRACK_VARS_POST]->value.ht, "XDEBUG_SESSION_STOP_NO_EXEC", sizeof("XDEBUG_SESSION_STOP_NO_EXEC"), (void **) &dummy) == SUCCESS
)
)
&& !SG(headers_sent)
) {
php_setcookie("XDEBUG_SESSION", sizeof("XDEBUG_SESSION"), "", 0, time(NULL) + XG(remote_cookie_expire_time), "/", 1, NULL, 0, 0 COOKIE_ENCODE TSRMLS_CC);
XG(no_exec) = 1;
}
/* Only enabled extended info when it is not disabled */
#if (PHP_MAJOR_VERSION == 5 && PHP_MINOR_VERSION >= 3) || PHP_MAJOR_VERSION >= 6
CG(compiler_options) = CG(compiler_options) | (XG(extended_info) ? ZEND_COMPILE_EXTENDED_INFO : 0);
#else
CG(extended_info) = XG(extended_info);
#endif
/* Hack: We check for a soap header here, if that's existing, we don't use
* Xdebug's error handler to keep soap fault from fucking up. */
if (XG(default_enable) && zend_hash_find(Z_ARRVAL_P(PG(http_globals)[TRACK_VARS_SERVER]), "HTTP_SOAPACTION", 16, (void**)&dummy) == FAILURE) {
zend_error_cb = xdebug_new_error_cb;
zend_throw_exception_hook = xdebug_throw_exception_hook;
}
XG(remote_enabled) = 0;
XG(profiler_enabled) = 0;
XG(breakpoints_allowed) = 1;
if (
(XG(auto_trace) || xdebug_trigger_enabled(XG(trace_enable_trigger), "XDEBUG_TRACE" TSRMLS_CC))
&& 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).program_name = NULL;
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();
/* Override var_dump with our own function */
XG(var_dump_overloaded) = 0;
if (XG(overload_var_dump)) {
zend_hash_find(EG(function_table), "var_dump", 9, (void **)&orig);
XG(orig_var_dump_func) = orig->internal_function.handler;
orig->internal_function.handler = zif_xdebug_var_dump;
XG(var_dump_overloaded) = 1;
}
/* Override set_time_limit with our own function to prevent timing out while debugging */
zend_hash_find(EG(function_table), "set_time_limit", 15, (void **)&orig);
XG(orig_set_time_limit_func) = orig->internal_function.handler;
orig->internal_function.handler = zif_xdebug_set_time_limit;
XG(headers) = xdebug_llist_alloc(xdebug_llist_string_dtor);
/* Signal that we're in a request now */
XG(in_execution) = 1;
return SUCCESS;
}
ZEND_MODULE_POST_ZEND_DEACTIVATE_D(xdebug)
{
zend_function *orig;
TSRMLS_FETCH();
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);
}
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(profile_filename)) {
xdfree(XG(profile_filename));
}
if (XG(ide_key)) {
xdfree(XG(ide_key));
XG(ide_key) = NULL;
}
XG(level) = 0;
XG(do_trace) = 0;
XG(coverage_enable) = 0;
XG(do_code_coverage) = 0;
xdebug_hash_destroy(XG(code_coverage));
XG(code_coverage) = NULL;
if (XG(context.list.last_file)) {
xdfree(XG(context).list.last_file);
}
if (XG(last_exception_trace)) {
xdfree(XG(last_exception_trace));
}
if (XG(last_eval_statement)) {
efree(XG(last_eval_statement));
}
xdebug_llist_destroy(XG(collected_errors), NULL);
XG(collected_errors) = NULL;
/* Reset var_dump and set_time_limit to the original function */
if (XG(var_dump_overloaded)) {
zend_hash_find(EG(function_table), "var_dump", 9, (void **)&orig);
orig->internal_function.handler = XG(orig_var_dump_func);
}
zend_hash_find(EG(function_table), "set_time_limit", 15, (void **)&orig);
orig->internal_function.handler = XG(orig_set_time_limit_func);
/* Clean up collected headers */
xdebug_llist_destroy(XG(headers), NULL);
XG(headers) = NULL;
return SUCCESS;
}
PHP_RSHUTDOWN_FUNCTION(xdebug)
{
/* Signal that we're no longer in a request */
XG(in_execution) = 0;