forked from xdebug/xdebug
/
xdebug_code_coverage.c
1270 lines (1108 loc) · 39.6 KB
/
xdebug_code_coverage.c
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/*
+----------------------------------------------------------------------+
| Xdebug |
+----------------------------------------------------------------------+
| Copyright (c) 2002-2016 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> |
+----------------------------------------------------------------------+
*/
#include "php_xdebug.h"
#include "xdebug_private.h"
#include "xdebug_set.h"
#include "xdebug_var.h"
#include "xdebug_branch_info.h"
#include "xdebug_code_coverage.h"
#include "xdebug_compat.h"
#include "xdebug_tracing.h"
extern ZEND_DECLARE_MODULE_GLOBALS(xdebug);
static void xdebug_build_fname_from_oparray(xdebug_func *tmp, zend_op_array *opa TSRMLS_DC);
static char* xdebug_func_format(xdebug_func *func TSRMLS_DC);
void xdebug_coverage_line_dtor(void *data)
{
xdebug_coverage_line *line = (xdebug_coverage_line *) data;
xdfree(line);
}
xdebug_coverage_file *xdebug_coverage_file_ctor(char *filename)
{
xdebug_coverage_file *file;
file = xdmalloc(sizeof(xdebug_coverage_file));
file->name = xdstrdup(filename);
file->lines = xdebug_hash_alloc(128, xdebug_coverage_line_dtor);
file->functions = xdebug_hash_alloc(128, xdebug_coverage_function_dtor);
file->has_branch_info = 0;
return file;
}
void xdebug_coverage_file_dtor(void *data)
{
xdebug_coverage_file *file = (xdebug_coverage_file *) data;
xdebug_hash_destroy(file->lines);
xdebug_hash_destroy(file->functions);
xdfree(file->name);
xdfree(file);
}
xdebug_coverage_function *xdebug_coverage_function_ctor(char *function_name)
{
xdebug_coverage_function *function;
function = xdmalloc(sizeof(xdebug_coverage_function));
function->name = xdstrdup(function_name);
function->branch_info = NULL;
return function;
}
void xdebug_coverage_function_dtor(void *data)
{
xdebug_coverage_function *function = (xdebug_coverage_function *) data;
if (function->branch_info) {
xdebug_branch_info_free(function->branch_info);
}
xdfree(function->name);
xdfree(function);
}
void xdebug_print_opcode_info(char type, zend_execute_data *execute_data, const zend_op *cur_opcode TSRMLS_DC)
{
#if PHP_VERSION_ID >= 70000
zend_op_array *op_array = &execute_data->func->op_array;
#else
zend_op_array *op_array = execute_data->op_array;
#endif
char *file = (char*) STR_NAME_VAL(op_array->filename);
xdebug_func func_info;
char *function_name;
#if PHP_VERSION_ID >= 70000
long opnr = execute_data->opline - execute_data->func->op_array.opcodes;
#else
long opnr = execute_data->opline - execute_data->op_array->opcodes;
#endif
xdebug_build_fname_from_oparray(&func_info, op_array TSRMLS_CC);
function_name = xdebug_func_format(&func_info TSRMLS_CC);
if (func_info.class) {
xdfree(func_info.class);
}
if (func_info.function) {
xdfree(func_info.function);
}
xdebug_branch_info_mark_reached(file, function_name, op_array, opnr TSRMLS_CC);
xdfree(function_name);
}
int xdebug_check_branch_entry_handler(ZEND_USER_OPCODE_HANDLER_ARGS)
{
if (XG(do_code_coverage) && XG(code_coverage_branch_check)) {
const zend_op *cur_opcode;
#if PHP_VERSION_ID >= 70000
cur_opcode = execute_data->opline;
#else
cur_opcode = *EG(opline_ptr);
#endif
xdebug_print_opcode_info('G', execute_data, cur_opcode TSRMLS_CC);
}
return ZEND_USER_OPCODE_DISPATCH;
}
#define XDEBUG_OPCODE_OVERRIDE(f) \
int xdebug_##f##_handler(ZEND_USER_OPCODE_HANDLER_ARGS) \
{ \
return xdebug_common_override_handler(ZEND_USER_OPCODE_HANDLER_ARGS_PASSTHRU); \
}
int xdebug_common_override_handler(ZEND_USER_OPCODE_HANDLER_ARGS)
{
if (XG(do_code_coverage)) {
const zend_op *cur_opcode;
int lineno;
char *file;
#if PHP_VERSION_ID >= 70000
zend_op_array *op_array = &execute_data->func->op_array;
cur_opcode = execute_data->opline;
lineno = cur_opcode->lineno;
#else
zend_op_array *op_array = execute_data->op_array;
cur_opcode = *EG(opline_ptr);
lineno = cur_opcode->lineno;
#endif
file = (char*) STR_NAME_VAL(op_array->filename);
xdebug_print_opcode_info('C', execute_data, cur_opcode TSRMLS_CC);
xdebug_count_line(file, lineno, 0, 0 TSRMLS_CC);
}
return ZEND_USER_OPCODE_DISPATCH;
}
#if PHP_VERSION_ID >= 70000
static int xdebug_is_static_call(const zend_op *cur_opcode, const zend_op *prev_opcode, const zend_op **found_opcode)
{
const zend_op *opcode_ptr;
opcode_ptr = cur_opcode;
# if PHP_VERSION_ID >= 70100
while (!(opcode_ptr->opcode == ZEND_EXT_STMT) && !((opcode_ptr->opcode == ZEND_FETCH_STATIC_PROP_W) || (opcode_ptr->opcode == ZEND_FETCH_STATIC_PROP_RW))) {
opcode_ptr = opcode_ptr - 1;
}
if ((opcode_ptr->opcode == ZEND_FETCH_STATIC_PROP_W) || (opcode_ptr->opcode == ZEND_FETCH_STATIC_PROP_RW)) {
# else
while (!(opcode_ptr->opcode == ZEND_EXT_STMT) && !((opcode_ptr->opcode == ZEND_FETCH_W) || (opcode_ptr->opcode == ZEND_FETCH_RW))) {
opcode_ptr = opcode_ptr - 1;
}
if (((opcode_ptr->opcode == ZEND_FETCH_W) || (opcode_ptr->opcode == ZEND_FETCH_RW)) && opcode_ptr->extended_value == ZEND_FETCH_STATIC_MEMBER) {
# endif
*found_opcode = opcode_ptr;
return 1;
}
return 0;
}
#else
static int xdebug_is_static_call(const zend_op *cur_opcode, const zend_op *prev_opcode, const zend_op **found_opcode)
{
const zend_op *opcode_ptr;
opcode_ptr = prev_opcode;
while (opcode_ptr->opcode == ZEND_FETCH_DIM_W || opcode_ptr->opcode == ZEND_FETCH_OBJ_W || opcode_ptr->opcode == ZEND_FETCH_W || opcode_ptr->opcode == ZEND_FETCH_RW) {
opcode_ptr = opcode_ptr - 1;
}
opcode_ptr++;
if (opcode_ptr->op1_type == IS_CONST && opcode_ptr->extended_value == ZEND_FETCH_STATIC_MEMBER)
{
*found_opcode = cur_opcode;
return 1;
}
return 0;
}
#endif
static char *xdebug_find_var_name(zend_execute_data *execute_data TSRMLS_DC)
{
const zend_op *cur_opcode, *next_opcode, *prev_opcode = NULL, *opcode_ptr;
zval *dimval;
int is_var;
#if PHP_VERSION_ID >= 70000
zend_op_array *op_array = &execute_data->func->op_array;
#else
int cv_len;
zend_op_array *op_array = execute_data->op_array;
#endif
xdebug_str name = XDEBUG_STR_INITIALIZER;
int gohungfound = 0, is_static = 0;
char *zval_value = NULL;
xdebug_var_export_options *options;
const zend_op *static_opcode_ptr;
#if PHP_VERSION_ID >= 70000
cur_opcode = execute_data->opline;
#else
cur_opcode = *EG(opline_ptr);
#endif
next_opcode = cur_opcode + 1;
prev_opcode = cur_opcode - 1;
if (cur_opcode->op1_type == IS_VAR &&
(next_opcode->op1_type == IS_VAR || cur_opcode->op2_type == IS_VAR) &&
prev_opcode->opcode == ZEND_FETCH_RW &&
prev_opcode->op1_type == IS_CONST &&
#if PHP_VERSION_ID >= 70000
Z_TYPE_P(RT_CONSTANT_EX(op_array->literals, prev_opcode->op1)) == IS_STRING
#else
Z_TYPE_P(prev_opcode->op1.zv) == IS_STRING
#endif
) {
#if PHP_VERSION_ID >= 70000
xdebug_str_add(&name, xdebug_sprintf("$%s", Z_STRVAL_P(RT_CONSTANT_EX(op_array->literals, prev_opcode->op1))), 1);
#else
xdebug_str_add(&name, xdebug_sprintf("$%s", Z_STRVAL_P(prev_opcode->op1.zv)), 1);
#endif
}
is_static = xdebug_is_static_call(cur_opcode, prev_opcode, &static_opcode_ptr);
options = xdebug_var_export_options_from_ini(TSRMLS_C);
options->no_decoration = 1;
if (cur_opcode->op1_type == IS_CV) {
#if PHP_VERSION_ID >= 70000
xdebug_str_add(&name, xdebug_sprintf("$%s", zend_get_compiled_variable_name(op_array, cur_opcode->op1.var)->val), 1);
#else
xdebug_str_add(&name, xdebug_sprintf("$%s", zend_get_compiled_variable_name(op_array, cur_opcode->op1.var, &cv_len)), 1);
#endif
} else if (cur_opcode->op1_type == IS_VAR && cur_opcode->opcode == ZEND_ASSIGN && (prev_opcode->opcode == ZEND_FETCH_W || prev_opcode->opcode == ZEND_FETCH_RW)) {
if (is_static) {
xdebug_str_add(&name, xdebug_sprintf("self::"), 1);
} else {
zval_value = xdebug_get_zval_value(xdebug_get_zval(execute_data, prev_opcode->op1_type, &prev_opcode->op1, &is_var), 0, options);
xdebug_str_add(&name, xdebug_sprintf("$%s", zval_value), 1);
}
} else if (is_static) { /* todo : see if you can change this and the previous cases around */
xdebug_str_add(&name, xdebug_sprintf("self::"), 1 );
}
if ((cur_opcode->opcode >= ZEND_ASSIGN_ADD && cur_opcode->opcode <= ZEND_ASSIGN_BW_XOR)
#if PHP_VERSION_ID >= 50600
|| cur_opcode->opcode == ZEND_ASSIGN_POW
#endif
) {
if (cur_opcode->extended_value == ZEND_ASSIGN_OBJ) {
zval_value = xdebug_get_zval_value(xdebug_get_zval(execute_data, cur_opcode->op2_type, &cur_opcode->op2, &is_var), 0, options);
if (cur_opcode->op1_type == IS_UNUSED) {
xdebug_str_add(&name, xdebug_sprintf("$this->%s", zval_value), 1);
} else {
xdebug_str_add(&name, xdebug_sprintf("->%s", zval_value), 1);
}
} else if (cur_opcode->extended_value == ZEND_ASSIGN_DIM) {
zval_value = xdebug_get_zval_value(xdebug_get_zval(execute_data, cur_opcode->op2_type, &cur_opcode->op2, &is_var), 0, NULL);
xdebug_str_add(&name,xdebug_sprintf("[%s]", zval_value), 1);
}
}
if (cur_opcode->opcode >= ZEND_PRE_INC_OBJ && cur_opcode->opcode <= ZEND_POST_DEC_OBJ) {
zval_value = xdebug_get_zval_value(xdebug_get_zval(execute_data, cur_opcode->op2_type, &cur_opcode->op2, &is_var), 0, options);
xdebug_str_add(&name, xdebug_sprintf("$this->%s", zval_value), 1);
}
if (zval_value) {
xdfree(zval_value);
zval_value = NULL;
}
/* Scroll back to start of FETCHES */
/* FIXME: See whether we can do this unroll looping only once - in is_static() */
gohungfound = 0;
#if PHP_VERSION_ID >= 70000
if (!is_static) {
#endif
opcode_ptr = prev_opcode;
while (opcode_ptr->opcode == ZEND_FETCH_DIM_W || opcode_ptr->opcode == ZEND_FETCH_OBJ_W || opcode_ptr->opcode == ZEND_FETCH_W || opcode_ptr->opcode == ZEND_FETCH_RW) {
opcode_ptr = opcode_ptr - 1;
gohungfound = 1;
}
opcode_ptr = opcode_ptr + 1;
#if PHP_VERSION_ID >= 70000
} else { /* if we have a static method, we should already have found the first fetch */
opcode_ptr = static_opcode_ptr;
gohungfound = 1;
}
#endif
if (gohungfound) {
do
{
if (opcode_ptr->op1_type == IS_UNUSED && opcode_ptr->opcode == ZEND_FETCH_OBJ_W) {
xdebug_str_add(&name, "$this", 0);
}
if (opcode_ptr->op1_type == IS_CV) {
#if PHP_VERSION_ID >= 70000
xdebug_str_add(&name, xdebug_sprintf("$%s", zend_get_compiled_variable_name(op_array, opcode_ptr->op1.var)->val), 1);
#else
xdebug_str_add(&name, xdebug_sprintf("$%s", zend_get_compiled_variable_name(op_array, opcode_ptr->op1.var, &cv_len)), 1);
#endif
}
#if PHP_VERSION_ID >= 70100
if (opcode_ptr->opcode == ZEND_FETCH_STATIC_PROP_W || opcode_ptr->opcode == ZEND_FETCH_STATIC_PROP_R || opcode_ptr->opcode == ZEND_FETCH_STATIC_PROP_RW) {
zval_value = xdebug_get_zval_value(xdebug_get_zval(execute_data, opcode_ptr->op1_type, &opcode_ptr->op1, &is_var), 0, options);
xdebug_str_add(&name, xdebug_sprintf("%s", zval_value), 1);
}
#endif
if (opcode_ptr->opcode == ZEND_FETCH_W) {
zval_value = xdebug_get_zval_value(xdebug_get_zval(execute_data, opcode_ptr->op1_type, &opcode_ptr->op1, &is_var), 0, options);
xdebug_str_add(&name, xdebug_sprintf("%s", zval_value), 1);
}
if (is_static && opcode_ptr->opcode == ZEND_FETCH_RW) {
zval_value = xdebug_get_zval_value(xdebug_get_zval(execute_data, opcode_ptr->op1_type, &opcode_ptr->op1, &is_var), 0, options);
xdebug_str_add(&name, xdebug_sprintf("%s", zval_value), 1);
}
if (opcode_ptr->opcode == ZEND_FETCH_DIM_W) {
if (opcode_ptr->op2_type != IS_VAR) {
zval_value = xdebug_get_zval_value(xdebug_get_zval(execute_data, opcode_ptr->op2_type, &opcode_ptr->op2, &is_var), 0, NULL);
xdebug_str_add(&name, xdebug_sprintf("[%s]", zval_value), 1);
} else {
xdebug_str_add(&name, xdebug_sprintf("[???]") , 1);
}
} else if (opcode_ptr->opcode == ZEND_FETCH_OBJ_W) {
zval_value = xdebug_get_zval_value(xdebug_get_zval(execute_data, opcode_ptr->op2_type, &opcode_ptr->op2, &is_var), 0, options);
xdebug_str_add(&name, xdebug_sprintf("->%s", zval_value), 1);
}
opcode_ptr = opcode_ptr + 1;
if (zval_value) {
xdfree(zval_value);
zval_value = NULL;
}
} while (opcode_ptr->opcode == ZEND_FETCH_DIM_W || opcode_ptr->opcode == ZEND_FETCH_OBJ_W || opcode_ptr->opcode == ZEND_FETCH_W || opcode_ptr->opcode == ZEND_FETCH_RW);
}
if (cur_opcode->opcode == ZEND_ASSIGN_OBJ) {
if (cur_opcode->op1_type == IS_UNUSED) {
xdebug_str_add(&name, "$this", 0);
}
dimval = xdebug_get_zval(execute_data, cur_opcode->op2_type, &cur_opcode->op2, &is_var);
xdebug_str_add(&name, xdebug_sprintf("->%s", Z_STRVAL_P(dimval)), 1);
}
if (cur_opcode->opcode == ZEND_ASSIGN_DIM) {
if (next_opcode->opcode == ZEND_OP_DATA && cur_opcode->op2_type == IS_UNUSED) {
xdebug_str_add(&name, "[]", 0);
} else {
zval_value = xdebug_get_zval_value(xdebug_get_zval(execute_data, opcode_ptr->op2_type, &opcode_ptr->op2, &is_var), 0, NULL);
xdebug_str_add(&name, xdebug_sprintf("[%s]", zval_value), 1);
xdfree(zval_value);
}
}
xdfree(options->runtime);
xdfree(options);
return name.d;
}
static int xdebug_common_assign_dim_handler(char *op, int do_cc, ZEND_USER_OPCODE_HANDLER_ARGS)
{
char *file;
#if PHP_VERSION_ID >= 70000
zend_op_array *op_array = &execute_data->func->op_array;
#else
zend_op_array *op_array = execute_data->op_array;
#endif
int lineno;
const zend_op *cur_opcode, *next_opcode;
char *full_varname;
zval *val = NULL;
int is_var;
function_stack_entry *fse;
#if PHP_VERSION_ID >= 70000
cur_opcode = execute_data->opline;
#else
cur_opcode = *EG(opline_ptr);
#endif
next_opcode = cur_opcode + 1;
file = (char*) STR_NAME_VAL(op_array->filename);
lineno = cur_opcode->lineno;
if (XG(do_code_coverage)) {
xdebug_print_opcode_info('=', execute_data, cur_opcode TSRMLS_CC);
if (do_cc) {
xdebug_count_line(file, lineno, 0, 0 TSRMLS_CC);
}
}
if (XG(do_trace) && XG(trace_context) && XG(collect_assignments)) {
full_varname = xdebug_find_var_name(execute_data TSRMLS_CC);
if (cur_opcode->opcode >= ZEND_PRE_INC && cur_opcode->opcode <= ZEND_POST_DEC) {
char *tmp_varname;
switch (cur_opcode->opcode) {
case ZEND_PRE_INC: tmp_varname = xdebug_sprintf("++%s", full_varname); break;
case ZEND_POST_INC: tmp_varname = xdebug_sprintf("%s++", full_varname); break;
case ZEND_PRE_DEC: tmp_varname = xdebug_sprintf("--%s", full_varname); break;
case ZEND_POST_DEC: tmp_varname = xdebug_sprintf("%s--", full_varname); break;
}
xdfree(full_varname);
full_varname = tmp_varname;
val = xdebug_get_zval(execute_data, cur_opcode->op1_type, &cur_opcode->op1, &is_var);
} else if (cur_opcode->opcode >= ZEND_PRE_INC_OBJ && cur_opcode->opcode <= ZEND_POST_DEC_OBJ) {
char *tmp_varname;
switch (cur_opcode->opcode) {
case ZEND_PRE_INC_OBJ: tmp_varname = xdebug_sprintf("++%s", full_varname); break;
case ZEND_POST_INC_OBJ: tmp_varname = xdebug_sprintf("%s++", full_varname); break;
case ZEND_PRE_DEC_OBJ: tmp_varname = xdebug_sprintf("--%s", full_varname); break;
case ZEND_POST_DEC_OBJ: tmp_varname = xdebug_sprintf("%s--", full_varname); break;
}
xdfree(full_varname);
full_varname = tmp_varname;
val = xdebug_get_zval(execute_data, cur_opcode->op2_type, &cur_opcode->op2, &is_var);
} else if (next_opcode->opcode == ZEND_OP_DATA) {
val = xdebug_get_zval(execute_data, next_opcode->op1_type, &next_opcode->op1, &is_var);
} else {
val = xdebug_get_zval(execute_data, cur_opcode->op2_type, &cur_opcode->op2, &is_var);
}
fse = XDEBUG_LLIST_VALP(XDEBUG_LLIST_TAIL(XG(stack)));
if (XG(do_trace) && XG(trace_context) && XG(collect_assignments) && XG(trace_handler)->assignment) {
XG(trace_handler)->assignment(XG(trace_context), fse, full_varname, val, op, file, lineno TSRMLS_CC);
}
xdfree(full_varname);
}
return ZEND_USER_OPCODE_DISPATCH;
}
#define XDEBUG_OPCODE_OVERRIDE_ASSIGN(f,o,cc) \
int xdebug_##f##_handler(ZEND_USER_OPCODE_HANDLER_ARGS) \
{ \
return xdebug_common_assign_dim_handler((o), (cc), ZEND_USER_OPCODE_HANDLER_ARGS_PASSTHRU); \
}
XDEBUG_OPCODE_OVERRIDE_ASSIGN(assign,"=",1)
XDEBUG_OPCODE_OVERRIDE_ASSIGN(assign_add,"+=",0)
XDEBUG_OPCODE_OVERRIDE_ASSIGN(assign_sub,"-=",0)
XDEBUG_OPCODE_OVERRIDE_ASSIGN(assign_mul,"*=",0)
XDEBUG_OPCODE_OVERRIDE_ASSIGN(assign_div,"/=",0)
XDEBUG_OPCODE_OVERRIDE_ASSIGN(assign_mod,"%=",0)
#if PHP_VERSION_ID >= 50600
XDEBUG_OPCODE_OVERRIDE_ASSIGN(assign_pow,"**=",0)
#endif
XDEBUG_OPCODE_OVERRIDE_ASSIGN(assign_sl,"<<=",0)
XDEBUG_OPCODE_OVERRIDE_ASSIGN(assign_sr,">>=",0)
XDEBUG_OPCODE_OVERRIDE_ASSIGN(pre_inc,"",0)
XDEBUG_OPCODE_OVERRIDE_ASSIGN(post_inc,"",0)
XDEBUG_OPCODE_OVERRIDE_ASSIGN(pre_dec,"",0)
XDEBUG_OPCODE_OVERRIDE_ASSIGN(post_dec,"",0)
XDEBUG_OPCODE_OVERRIDE_ASSIGN(pre_inc_obj,"",0)
XDEBUG_OPCODE_OVERRIDE_ASSIGN(post_inc_obj,"",0)
XDEBUG_OPCODE_OVERRIDE_ASSIGN(pre_dec_obj,"",0)
XDEBUG_OPCODE_OVERRIDE_ASSIGN(post_dec_obj,"",0)
XDEBUG_OPCODE_OVERRIDE_ASSIGN(assign_concat,".=",1)
XDEBUG_OPCODE_OVERRIDE_ASSIGN(assign_bw_or,"|=",0)
XDEBUG_OPCODE_OVERRIDE_ASSIGN(assign_bw_and,"&=",0)
XDEBUG_OPCODE_OVERRIDE_ASSIGN(assign_bw_xor,"^=",0)
XDEBUG_OPCODE_OVERRIDE_ASSIGN(assign_dim,"=",1)
XDEBUG_OPCODE_OVERRIDE_ASSIGN(assign_obj,"=",1)
inline void xdebug_count_line(char *filename, int lineno, int executable, int deadcode TSRMLS_DC)
{
xdebug_coverage_file *file;
xdebug_coverage_line *line;
if (strcmp(XG(previous_filename), filename) == 0) {
file = XG(previous_file);
} else {
/* Check if the file already exists in the hash */
if (!xdebug_hash_find(XG(code_coverage), filename, strlen(filename), (void *) &file)) {
/* The file does not exist, so we add it to the hash */
file = xdebug_coverage_file_ctor(filename);
xdebug_hash_add(XG(code_coverage), filename, strlen(filename), file);
}
XG(previous_filename) = file->name;
XG(previous_file) = file;
}
/* Check if the line already exists in the hash */
if (!xdebug_hash_index_find(file->lines, lineno, (void *) &line)) {
line = xdmalloc(sizeof(xdebug_coverage_line));
line->lineno = lineno;
line->count = 0;
line->executable = 0;
xdebug_hash_index_add(file->lines, lineno, line);
}
if (executable) {
if (line->executable != 1 && deadcode) {
line->executable = 2;
} else {
line->executable = 1;
}
} else {
line->count++;
}
}
static void prefill_from_opcode(char *fn, zend_op opcode, int deadcode TSRMLS_DC)
{
if (
opcode.opcode != ZEND_NOP &&
opcode.opcode != ZEND_EXT_NOP &&
opcode.opcode != ZEND_RECV &&
opcode.opcode != ZEND_RECV_INIT
&& opcode.opcode != ZEND_VERIFY_ABSTRACT_CLASS
&& opcode.opcode != ZEND_OP_DATA
&& opcode.opcode != ZEND_ADD_INTERFACE
&& opcode.opcode != ZEND_TICKS
#if PHP_VERSION_ID >= 50500
&& opcode.opcode != ZEND_FAST_CALL
#endif
) {
xdebug_count_line(fn, opcode.lineno, 1, deadcode TSRMLS_CC);
}
}
#if PHP_VERSION_ID < 70000
static zend_brk_cont_element* xdebug_find_brk_cont(zend_uint nest_levels, int array_offset, zend_op_array *op_array)
{
zend_brk_cont_element *jmp_to;
do {
if (array_offset == -1) {
/* broken break/continue in code */
return NULL;
}
jmp_to = &op_array->brk_cont_array[array_offset];
array_offset = jmp_to->parent;
} while (--nest_levels > 0);
return jmp_to;
}
#endif
#define XDEBUG_ZNODE_ELEM(node,var) node.var
#if ZEND_USE_ABS_JMP_ADDR
# define XDEBUG_ZNODE_JMP_LINE(node, opline, base) (int32_t)(((long)((node).jmp_addr) - (long)(base_address)) / sizeof(zend_op))
#else
# define XDEBUG_ZNODE_JMP_LINE(node, opline, base) (int32_t)(((int32_t)((node).jmp_offset) / sizeof(zend_op)) + (opline))
#endif
static int xdebug_find_jump(zend_op_array *opa, unsigned int position, long *jmp1, long *jmp2)
{
#if PHP_VERSION_ID < 70000 || ZEND_USE_ABS_JMP_ADDR
zend_op *base_address = &(opa->opcodes[0]);
#endif
zend_op opcode = opa->opcodes[position];
if (opcode.opcode == ZEND_JMP) {
#if PHP_VERSION_ID >= 70000
*jmp1 = XDEBUG_ZNODE_JMP_LINE(opcode.op1, position, base_address);
#else
*jmp1 = ((long) XDEBUG_ZNODE_ELEM(opcode.op1, jmp_addr) - (long) base_address) / sizeof(zend_op);
#endif
return 1;
} else if (
opcode.opcode == ZEND_JMPZ ||
opcode.opcode == ZEND_JMPNZ ||
opcode.opcode == ZEND_JMPZ_EX ||
opcode.opcode == ZEND_JMPNZ_EX
) {
*jmp1 = position + 1;
#if PHP_VERSION_ID >= 70000
*jmp2 = XDEBUG_ZNODE_JMP_LINE(opcode.op2, position, base_address);
#else
*jmp2 = ((long) XDEBUG_ZNODE_ELEM(opcode.op2, jmp_addr) - (long) base_address) / sizeof(zend_op);
#endif
return 1;
} else if (opcode.opcode == ZEND_JMPZNZ) {
#if PHP_VERSION_ID >= 70000
*jmp1 = XDEBUG_ZNODE_JMP_LINE(opcode.op2, position, base_address);
*jmp2 = (int32_t) (position + ((int32_t)opcode.extended_value / sizeof(zend_op)));
#else
*jmp1 = XDEBUG_ZNODE_ELEM(opcode.op2, opline_num);
*jmp2 = opcode.extended_value;
#endif
return 1;
#if PHP_VERSION_ID < 70000
} else if (opcode.opcode == ZEND_BRK || opcode.opcode == ZEND_CONT) {
zend_brk_cont_element *el;
if (opcode.op2_type == IS_CONST
#ifdef ZEND_ENGINE_2
&& XDEBUG_ZNODE_ELEM(opcode.op1, jmp_addr) != (zend_op*) 0xFFFFFFFF
#endif
) {
el = xdebug_find_brk_cont(Z_LVAL_P(opcode.op2.zv), XDEBUG_ZNODE_ELEM(opcode.op1, opline_num), opa);
if (el) {
*jmp1 = opcode.opcode == ZEND_BRK ? el->brk : el->cont;
return 1;
} else {
/* broken break/continue in code */
return 0;
}
}
#endif
#if PHP_VERSION_ID >= 70000
} else if (opcode.opcode == ZEND_FE_FETCH_R || opcode.opcode == ZEND_FE_FETCH_RW) {
*jmp1 = position + 1;
*jmp2 = position + (opcode.extended_value / sizeof(zend_op));
return 1;
} else if (opcode.opcode == ZEND_FE_RESET_R || opcode.opcode == ZEND_FE_RESET_RW) {
#else
} else if (opcode.opcode == ZEND_FE_RESET || opcode.opcode == ZEND_FE_FETCH) {
#endif
*jmp1 = position + 1;
#if PHP_VERSION_ID >= 70000
*jmp2 = XDEBUG_ZNODE_JMP_LINE(opcode.op2, position, base_address);
#else
*jmp2 = XDEBUG_ZNODE_ELEM(opcode.op2, opline_num);
#endif
return 1;
} else if (opcode.opcode == ZEND_CATCH) {
*jmp1 = position + 1;
if (!opcode.result.num) {
#if PHP_VERSION_ID >= 70100
*jmp2 = position + (opcode.extended_value / sizeof(zend_op));
#else
*jmp2 = opcode.extended_value;
#endif
if (*jmp2 == *jmp1) {
*jmp2 = XDEBUG_JMP_NOT_SET;
}
} else {
*jmp2 = XDEBUG_JMP_EXIT;
}
return 1;
} else if (opcode.opcode == ZEND_GOTO) {
#if PHP_VERSION_ID >= 70000
*jmp1 = XDEBUG_ZNODE_JMP_LINE(opcode.op1, position, base_address);
#else
*jmp1 = ((long) XDEBUG_ZNODE_ELEM(opcode.op1, jmp_addr) - (long) base_address) / sizeof(zend_op);
#endif
return 1;
#if PHP_VERSION_ID >= 50500
} else if (opcode.opcode == ZEND_FAST_CALL) {
#if PHP_VERSION_ID >= 70000
*jmp1 = XDEBUG_ZNODE_JMP_LINE(opcode.op1, position, base_address);
#else
*jmp1 = ((long) XDEBUG_ZNODE_ELEM(opcode.op1, jmp_addr) - (long) base_address) / sizeof(zend_op);
#endif
*jmp2 = position + 1;
return 1;
} else if (opcode.opcode == ZEND_FAST_RET) {
*jmp1 = XDEBUG_JMP_EXIT;
return 1;
#endif
} else if (
#if PHP_VERSION_ID >= 50500
opcode.opcode == ZEND_GENERATOR_RETURN ||
#endif
opcode.opcode == ZEND_EXIT ||
opcode.opcode == ZEND_THROW ||
opcode.opcode == ZEND_RETURN
) {
*jmp1 = XDEBUG_JMP_EXIT;
return 1;
}
return 0;
}
static void xdebug_analyse_branch(zend_op_array *opa, unsigned int position, xdebug_set *set, xdebug_branch_info *branch_info TSRMLS_DC)
{
long jump_pos1 = XDEBUG_JMP_NOT_SET;
long jump_pos2 = XDEBUG_JMP_NOT_SET;
/*(fprintf(stderr, "Branch analysis from position: %d\n", position);)*/
if (branch_info) {
xdebug_set_add(branch_info->starts, position);
branch_info->branches[position].start_lineno = opa->opcodes[position].lineno;
}
/* First we see if the branch has been visited, if so we bail out. */
if (xdebug_set_in(set, position)) {
return;
}
/*(fprintf(stderr, "XDEBUG Adding %d\n", position);)*/
/* Loop over the opcodes until the end of the array, or until a jump point has been found */
xdebug_set_add(set, position);
while (position < opa->last) {
jump_pos1 = XDEBUG_JMP_NOT_SET;
jump_pos2 = XDEBUG_JMP_NOT_SET;
/* See if we have a jump instruction */
if (xdebug_find_jump(opa, position, &jump_pos1, &jump_pos2)) {
/*(fprintf(stderr, "XDEBUG Jump found. Position 1 = %d", jump_pos1);)*/
if (jump_pos2 != XDEBUG_JMP_NOT_SET) {
/*(fprintf(stderr, ", Position 2 = %d\n", jump_pos2))*/;
} else {
/*(fprintf(stderr, "\n"))*/;
}
if (jump_pos1 == XDEBUG_JMP_EXIT || jump_pos1 != XDEBUG_JMP_NOT_SET) {
if (branch_info) {
xdebug_branch_info_update(branch_info, position, opa->opcodes[position].lineno, 0, jump_pos1);
}
if (jump_pos1 != XDEBUG_JMP_EXIT) {
xdebug_analyse_branch(opa, jump_pos1, set, branch_info TSRMLS_CC);
}
}
if (jump_pos2 == XDEBUG_JMP_EXIT || jump_pos2 != XDEBUG_JMP_NOT_SET) {
if (branch_info) {
xdebug_branch_info_update(branch_info, position, opa->opcodes[position].lineno, 1, jump_pos2);
}
if (jump_pos2 != XDEBUG_JMP_EXIT) {
xdebug_analyse_branch(opa, jump_pos2, set, branch_info TSRMLS_CC);
}
}
break;
}
/* See if we have a throw instruction */
if (opa->opcodes[position].opcode == ZEND_THROW) {
/* fprintf(stderr, "Throw found at %d\n", position); */
if (branch_info) {
xdebug_set_add(branch_info->ends, position);
branch_info->branches[position].start_lineno = opa->opcodes[position].lineno;
}
break;
}
/* See if we have an exit instruction */
if (opa->opcodes[position].opcode == ZEND_EXIT) {
/* fprintf(stderr, "X* Return found\n"); */
if (branch_info) {
xdebug_set_add(branch_info->ends, position);
branch_info->branches[position].start_lineno = opa->opcodes[position].lineno;
}
break;
}
/* See if we have a return instruction */
if (
opa->opcodes[position].opcode == ZEND_RETURN
|| opa->opcodes[position].opcode == ZEND_RETURN_BY_REF
) {
/*(fprintf(stderr, "XDEBUG Return found\n");)*/
if (branch_info) {
xdebug_set_add(branch_info->ends, position);
branch_info->branches[position].start_lineno = opa->opcodes[position].lineno;
}
break;
}
position++;
/*(fprintf(stderr, "XDEBUG Adding %d\n", position);)*/
xdebug_set_add(set, position);
}
}
static void xdebug_analyse_oparray(zend_op_array *opa, xdebug_set *set, xdebug_branch_info *branch_info TSRMLS_DC)
{
unsigned int position = 0;
while (position < opa->last) {
if (position == 0) {
xdebug_analyse_branch(opa, position, set, branch_info TSRMLS_CC);
if (branch_info) {
xdebug_set_add(branch_info->entry_points, position);
}
} else if (opa->opcodes[position].opcode == ZEND_CATCH) {
xdebug_analyse_branch(opa, position, set, branch_info TSRMLS_CC);
if (branch_info) {
xdebug_set_add(branch_info->entry_points, position);
}
}
position++;
}
if (branch_info) {
xdebug_set_add(branch_info->ends, opa->last-1);
branch_info->branches[opa->last-1].start_lineno = opa->opcodes[opa->last-1].lineno;
}
}
static void xdebug_build_fname_from_oparray(xdebug_func *tmp, zend_op_array *opa TSRMLS_DC)
{
int closure = 0;
memset(tmp, 0, sizeof(xdebug_func));
if (opa->function_name) {
if (strcmp(STR_NAME_VAL(opa->function_name), "{closure}") == 0) {
tmp->function = xdebug_sprintf(
"{closure:%s:%d-%d}",
STR_NAME_VAL(opa->filename),
opa->line_start,
opa->line_end
);
closure = 1;
} else {
tmp->function = xdstrdup(STR_NAME_VAL(opa->function_name));
}
} else {
tmp->function = xdstrdup("{main}");
}
if (opa->scope && !closure) {
tmp->type = XFUNC_MEMBER;
tmp->class = xdstrdup(STR_NAME_VAL(opa->scope->name));
} else {
tmp->type = XFUNC_NORMAL;
}
}
static char* xdebug_func_format(xdebug_func *func TSRMLS_DC)
{
switch (func->type) {
case XFUNC_NORMAL:
return xdstrdup(func->function);
case XFUNC_MEMBER:
return xdebug_sprintf("%s->%s", func->class, func->function);
default:
return xdstrdup("???");
}
}
static void prefill_from_oparray(char *filename, zend_op_array *op_array TSRMLS_DC)
{
unsigned int i;
xdebug_set *set = NULL;
xdebug_branch_info *branch_info = NULL;
op_array->reserved[XG(dead_code_analysis_tracker_offset)] = (void*) XG(dead_code_last_start_id);
/* Check for abstract methods and simply return from this function in those
* cases. */
#if PHP_VERSION_ID >= 70000
if (op_array->fn_flags & ZEND_ACC_ABSTRACT) {
#else
if (op_array->last >= 3 && op_array->opcodes[op_array->last - 3].opcode == ZEND_RAISE_ABSTRACT_ERROR) {
#endif
return;
}
/* Run dead code analysis if requested */
if (XG(code_coverage_dead_code_analysis) && (op_array->fn_flags & ZEND_ACC_DONE_PASS_TWO)) {
set = xdebug_set_create(op_array->last);
if (XG(code_coverage_branch_check)) {
branch_info = xdebug_branch_info_create(op_array->last);
}
xdebug_analyse_oparray(op_array, set, branch_info TSRMLS_CC);
}
/* The normal loop then finally */
for (i = 0; i < op_array->last; i++) {
zend_op opcode = op_array->opcodes[i];
prefill_from_opcode(filename, opcode, set ? !xdebug_set_in(set, i) : 0 TSRMLS_CC);
}
if (set) {
xdebug_set_free(set);
}
if (branch_info) {
char *function_name;
xdebug_func func_info;
xdebug_build_fname_from_oparray(&func_info, op_array TSRMLS_CC);
function_name = xdebug_func_format(&func_info TSRMLS_CC);
if (func_info.class) {
xdfree(func_info.class);
}
if (func_info.function) {
xdfree(func_info.function);
}
xdebug_branch_post_process(op_array, branch_info);
xdebug_branch_find_paths(branch_info);
xdebug_branch_info_add_branches_and_paths(filename, (char*) function_name, branch_info TSRMLS_CC);
xdfree(function_name);
}
}
#if PHP_VERSION_ID >= 70000
static int prefill_from_function_table(zend_op_array *opa)
#else
static int prefill_from_function_table(zend_op_array *opa TSRMLS_DC, int num_args, va_list args, zend_hash_key *hash_key)
#endif
{
if (opa->type == ZEND_USER_FUNCTION) {
if ((long) opa->reserved[XG(dead_code_analysis_tracker_offset)] < XG(dead_code_last_start_id)) {
prefill_from_oparray((char*) STR_NAME_VAL(opa->filename), opa TSRMLS_CC);
}
}
return ZEND_HASH_APPLY_KEEP;
}
static int prefill_from_class_table(zend_class_entry **class_entry TSRMLS_DC, int num_args, va_list args, zend_hash_key *hash_key)
{
#if PHP_VERSION_ID < 70000
char *new_filename;
#endif
zend_class_entry *ce;
ce = *class_entry;
#if PHP_VERSION_ID < 70000
new_filename = va_arg(args, char*);
#endif
if (ce->type == ZEND_USER_CLASS) {
if (!(ce->ce_flags & ZEND_XDEBUG_VISITED)) {
#if PHP_VERSION_ID >= 70000
zend_op_array *val;
#endif
ce->ce_flags |= ZEND_XDEBUG_VISITED;
#if PHP_VERSION_ID >= 70000
ZEND_HASH_INC_APPLY_COUNT(&ce->function_table);
ZEND_HASH_FOREACH_PTR(&ce->function_table, val) {
prefill_from_function_table(val);
} ZEND_HASH_FOREACH_END();
ZEND_HASH_DEC_APPLY_COUNT(&ce->function_table);
#else
zend_hash_apply_with_arguments(&ce->function_table TSRMLS_CC, (apply_func_args_t) prefill_from_function_table, 1, new_filename);
#endif
}
}
return ZEND_HASH_APPLY_KEEP;
}
void xdebug_prefill_code_coverage(zend_op_array *op_array TSRMLS_DC)
{
if ((long) op_array->reserved[XG(dead_code_analysis_tracker_offset)] < XG(dead_code_last_start_id)) {
prefill_from_oparray((char*) STR_NAME_VAL(op_array->filename), op_array TSRMLS_CC);
}
zend_hash_apply_with_arguments(CG(function_table) TSRMLS_CC, (apply_func_args_t) prefill_from_function_table, 1, STR_NAME_VAL(op_array->filename));
zend_hash_apply_with_arguments(CG(class_table) TSRMLS_CC, (apply_func_args_t) prefill_from_class_table, 1, STR_NAME_VAL(op_array->filename));
}
void xdebug_code_coverage_start_of_function(zend_op_array *op_array TSRMLS_DC)
{
xdebug_path *path = xdebug_path_new(NULL);
xdebug_prefill_code_coverage(op_array TSRMLS_CC);
xdebug_path_info_add_path_for_level(XG(paths_stack), path, XG(level) TSRMLS_CC);
if (XG(branches).size == 0 || XG(level) >= XG(branches).size) {
XG(branches).size = XG(level) + 32;
XG(branches).last_branch_nr = realloc(XG(branches).last_branch_nr, sizeof(int) * XG(branches.size));
}
XG(branches).last_branch_nr[XG(level)] = -1;
}
void xdebug_code_coverage_end_of_function(zend_op_array *op_array TSRMLS_DC)
{
xdebug_str str = XDEBUG_STR_INITIALIZER;
xdebug_path *path = xdebug_path_info_get_path_for_level(XG(paths_stack), XG(level) TSRMLS_CC);
char *file = (char*) STR_NAME_VAL(op_array->filename);
xdebug_func func_info;
char *function_name;
if (!path) {
return;
}
xdebug_create_key_for_path(path, &str);
xdebug_build_fname_from_oparray(&func_info, op_array TSRMLS_CC);
function_name = xdebug_func_format(&func_info TSRMLS_CC);
if (func_info.class) {
xdfree(func_info.class);
}
if (func_info.function) {
xdfree(func_info.function);
}