/
code_coverage.c
1194 lines (992 loc) · 37.7 KB
/
code_coverage.c
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/*
+----------------------------------------------------------------------+
| Xdebug |
+----------------------------------------------------------------------+
| Copyright (c) 2002-2023 Derick Rethans |
+----------------------------------------------------------------------+
| This source file is subject to version 1.01 of the Xdebug license, |
| that is bundled with this package in the file LICENSE, and is |
| available at through the world-wide-web at |
| https://xdebug.org/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 |
| derick@xdebug.org so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
*/
#include "php_xdebug.h"
#include "zend_extensions.h"
#include "branch_info.h"
#include "code_coverage_private.h"
#include "base/base.h"
#include "base/filter.h"
#include "lib/compat.h"
#include "lib/set.h"
#include "lib/var.h"
#include "tracing/tracing.h"
/* True globals */
int zend_xdebug_filter_offset = -1;
int zend_xdebug_cc_run_offset = -1;
extern ZEND_DECLARE_MODULE_GLOBALS(xdebug);
static void xdebug_coverage_line_dtor(void *data)
{
xdebug_coverage_line *line = (xdebug_coverage_line *) data;
xdfree(line);
}
xdebug_coverage_file *xdebug_coverage_file_ctor(zend_string *filename)
{
xdebug_coverage_file *file;
file = xdmalloc(sizeof(xdebug_coverage_file));
file->name = zend_string_copy(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;
}
static 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);
zend_string_release(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);
}
static void xdebug_func_format(char *buffer, size_t buffer_size, xdebug_func *func)
{
if (func->type == XFUNC_NORMAL) {
int len = ZSTR_LEN(func->function);
if (len + 1 > buffer_size) {
goto error;
}
memcpy(buffer, ZSTR_VAL(func->function), len);
buffer[len] = '\0';
return;
}
if (func->type == XFUNC_MEMBER) {
int func_len = ZSTR_LEN(func->function);
int len = ZSTR_LEN(func->object_class) + 2 + func_len;
if (len + 1 > buffer_size) {
goto error;
}
memcpy(buffer, ZSTR_VAL(func->object_class), ZSTR_LEN(func->object_class));
memcpy(buffer + ZSTR_LEN(func->object_class), "->", 2);
memcpy(buffer + ZSTR_LEN(func->object_class) + 2, ZSTR_VAL(func->function), func_len);
buffer[len] = '\0';
return;
}
error:
memcpy(buffer, "?", 1);
buffer[1] = '\0';
}
static void xdebug_build_fname_from_oparray(xdebug_func *tmp, zend_op_array *opa)
{
int wrapped = 0;
memset(tmp, 0, sizeof(xdebug_func));
if (opa->function_name) {
if (opa->fn_flags & ZEND_ACC_CLOSURE) {
tmp->function = xdebug_wrap_closure_location_around_function_name(opa, opa->function_name);
wrapped = 1;
} else if (
opa->fn_flags & ZEND_ACC_TRAIT_CLONE
|| (opa->scope && opa->scope->ce_flags & ZEND_ACC_TRAIT)
) {
tmp->function = xdebug_wrap_location_around_function_name("trait-method", opa, opa->function_name);
wrapped = 1;
} else {
tmp->function = zend_string_copy(opa->function_name);
}
} else {
tmp->function = ZSTR_INIT_LITERAL("{main}", false);
tmp->type = XFUNC_MAIN;
}
if (opa->scope && !wrapped) {
tmp->type = XFUNC_MEMBER;
tmp->object_class = zend_string_copy(opa->scope->name);
} else {
tmp->type = XFUNC_NORMAL;
}
}
static void xdebug_print_opcode_info(zend_execute_data *execute_data, const zend_op *cur_opcode)
{
zend_op_array *op_array = &execute_data->func->op_array;
xdebug_func func_info;
char function_name[1024];
long opnr = execute_data->opline - execute_data->func->op_array.opcodes;
xdebug_build_fname_from_oparray(&func_info, op_array);
xdebug_func_format(function_name, sizeof(function_name), &func_info);
if (func_info.object_class) {
zend_string_release(func_info.object_class);
}
if (func_info.scope_class) {
zend_string_release(func_info.scope_class);
}
if (func_info.function) {
zend_string_release(func_info.function);
}
xdebug_branch_info_mark_reached(op_array->filename, function_name, op_array, opnr);
}
static int xdebug_check_branch_entry_handler(XDEBUG_OPCODE_HANDLER_ARGS)
{
zend_op_array *op_array = &execute_data->func->op_array;
const zend_op *cur_opcode = execute_data->opline;
if (!op_array->reserved[XG_COV(code_coverage_filter_offset)] && XG_COV(code_coverage_active)) {
xdebug_print_opcode_info(execute_data, cur_opcode);
}
return xdebug_call_original_opcode_handler_if_set(cur_opcode->opcode, XDEBUG_OPCODE_HANDLER_ARGS_PASSTHRU);
}
static void xdebug_count_line(zend_string *filename, int lineno, int executable, int deadcode)
{
xdebug_coverage_file *file;
xdebug_coverage_line *line;
if (XG_COV(previous_filename) && zend_string_equals(XG_COV(previous_filename), filename)) {
file = XG_COV(previous_file);
} else {
/* Check if the file already exists in the hash */
if (!xdebug_hash_find(XG_COV(code_coverage_info), ZSTR_VAL(filename), ZSTR_LEN(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_COV(code_coverage_info), ZSTR_VAL(filename), ZSTR_LEN(filename), file);
}
if (XG_COV(previous_filename)) {
zend_string_release(XG_COV(previous_filename));
}
XG_COV(previous_filename) = zend_string_copy(file->name);
XG_COV(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 int xdebug_common_override_handler(XDEBUG_OPCODE_HANDLER_ARGS)
{
zend_op_array *op_array = &execute_data->func->op_array;
const zend_op *cur_opcode = execute_data->opline;
if (!op_array->reserved[XG_COV(code_coverage_filter_offset)] && XG_COV(code_coverage_active)) {
int lineno;
lineno = cur_opcode->lineno;
xdebug_print_opcode_info(execute_data, cur_opcode);
xdebug_count_line(op_array->filename, lineno, 0, 0);
}
return xdebug_call_original_opcode_handler_if_set(cur_opcode->opcode, XDEBUG_OPCODE_HANDLER_ARGS_PASSTHRU);
}
static int xdebug_coverage_include_or_eval_handler(XDEBUG_OPCODE_HANDLER_ARGS)
{
zend_op_array *op_array = &execute_data->func->op_array;
const zend_op *opline = execute_data->opline;
xdebug_coverage_record_if_active(execute_data, op_array);
return xdebug_call_original_opcode_handler_if_set(opline->opcode, XDEBUG_OPCODE_HANDLER_ARGS_PASSTHRU);
}
static void prefill_from_opcode(zend_string *filename, zend_op opcode, int deadcode)
{
if (
opcode.opcode != ZEND_NOP &&
opcode.opcode != ZEND_EXT_NOP &&
opcode.opcode != ZEND_RECV &&
opcode.opcode != ZEND_RECV_INIT
&& opcode.opcode != ZEND_OP_DATA
&& opcode.opcode != ZEND_TICKS
&& opcode.opcode != ZEND_FAST_CALL
&& opcode.opcode != ZEND_RECV_VARIADIC
) {
xdebug_count_line(filename, opcode.lineno, 1, deadcode);
}
}
#define XDEBUG_ZNODE_ELEM(node,var) node.var
static int xdebug_find_jumps(zend_op_array *opa, unsigned int position, size_t *jump_count, int *jumps)
{
#if ZEND_USE_ABS_JMP_ADDR
zend_op *base_address = &(opa->opcodes[0]);
#endif
zend_op opcode = opa->opcodes[position];
if (opcode.opcode == ZEND_JMP) {
jumps[0] = XDEBUG_ZNODE_JMP_LINE(opcode.op1, position, base_address);
*jump_count = 1;
return 1;
} else if (
opcode.opcode == ZEND_JMPZ ||
opcode.opcode == ZEND_JMPNZ ||
opcode.opcode == ZEND_JMPZ_EX ||
opcode.opcode == ZEND_JMPNZ_EX
) {
jumps[0] = position + 1;
jumps[1] = XDEBUG_ZNODE_JMP_LINE(opcode.op2, position, base_address);
*jump_count = 2;
return 1;
#if PHP_VERSION_ID < 80200
} else if (opcode.opcode == ZEND_JMPZNZ) {
jumps[0] = XDEBUG_ZNODE_JMP_LINE(opcode.op2, position, base_address);
jumps[1] = position + ((int32_t) opcode.extended_value / (int32_t) sizeof(zend_op));
*jump_count = 2;
return 1;
#endif
} else if (opcode.opcode == ZEND_FE_FETCH_R || opcode.opcode == ZEND_FE_FETCH_RW) {
jumps[0] = position + 1;
jumps[1] = position + (opcode.extended_value / sizeof(zend_op));
*jump_count = 2;
return 1;
} else if (opcode.opcode == ZEND_FE_RESET_R || opcode.opcode == ZEND_FE_RESET_RW) {
jumps[0] = position + 1;
jumps[1] = XDEBUG_ZNODE_JMP_LINE(opcode.op2, position, base_address);
*jump_count = 2;
return 1;
} else if (opcode.opcode == ZEND_CATCH) {
*jump_count = 2;
jumps[0] = position + 1;
if (!(opcode.extended_value & ZEND_LAST_CATCH)) {
jumps[1] = XDEBUG_ZNODE_JMP_LINE(opcode.op2, position, base_address);
if (jumps[1] == jumps[0]) {
jumps[1] = XDEBUG_JMP_NOT_SET;
*jump_count = 1;
}
} else {
jumps[1] = XDEBUG_JMP_EXIT;
}
return 1;
} else if (opcode.opcode == ZEND_GOTO) {
jumps[0] = XDEBUG_ZNODE_JMP_LINE(opcode.op1, position, base_address);
*jump_count = 1;
return 1;
} else if (opcode.opcode == ZEND_FAST_CALL) {
jumps[0] = XDEBUG_ZNODE_JMP_LINE(opcode.op1, position, base_address);
jumps[1] = position + 1;
*jump_count = 2;
return 1;
} else if (opcode.opcode == ZEND_FAST_RET) {
jumps[0] = XDEBUG_JMP_EXIT;
*jump_count = 1;
return 1;
} else if (
opcode.opcode == ZEND_GENERATOR_RETURN ||
opcode.opcode == ZEND_EXIT ||
opcode.opcode == ZEND_THROW ||
opcode.opcode == ZEND_MATCH_ERROR ||
opcode.opcode == ZEND_RETURN
) {
jumps[0] = XDEBUG_JMP_EXIT;
*jump_count = 1;
return 1;
} else if (
opcode.opcode == ZEND_MATCH ||
opcode.opcode == ZEND_SWITCH_LONG ||
opcode.opcode == ZEND_SWITCH_STRING
) {
zval *array_value;
HashTable *myht;
zval *val;
array_value = RT_CONSTANT(&opa->opcodes[position], opcode.op2);
myht = Z_ARRVAL_P(array_value);
/* All 'case' statements */
ZEND_HASH_FOREACH_VAL_IND(myht, val) {
if (*jump_count < XDEBUG_BRANCH_MAX_OUTS - 2) {
jumps[*jump_count] = position + (val->value.lval / sizeof(zend_op));
(*jump_count)++;
}
} ZEND_HASH_FOREACH_END();
/* The 'default' case */
jumps[*jump_count] = position + (opcode.extended_value / sizeof(zend_op));
(*jump_count)++;
if (opcode.opcode != ZEND_MATCH) {
/* The 'next' opcode */
jumps[*jump_count] = position + 1;
(*jump_count)++;
}
return 1;
}
return 0;
}
static void xdebug_analyse_branch(zend_op_array *opa, unsigned int position, xdebug_set *set, xdebug_branch_info *branch_info)
{
/* 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) {
size_t jump_count = 0;
int jumps[XDEBUG_BRANCH_MAX_OUTS];
size_t i;
/* See if we have a jump instruction */
if (xdebug_find_jumps(opa, position, &jump_count, jumps)) {
for (i = 0; i < jump_count; i++) {
if (jumps[i] == XDEBUG_JMP_EXIT || jumps[i] != XDEBUG_JMP_NOT_SET) {
if (branch_info) {
xdebug_branch_info_update(branch_info, position, opa->opcodes[position].lineno, i, jumps[i]);
}
if (jumps[i] != XDEBUG_JMP_EXIT) {
xdebug_analyse_branch(opa, jumps[i], set, branch_info);
}
}
}
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)
{
unsigned int position = 0;
while (position < opa->last) {
if (position == 0) {
xdebug_analyse_branch(opa, position, set, branch_info);
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);
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 prefill_from_oparray(zend_string *filename, zend_op_array *op_array)
{
unsigned int i;
xdebug_set *set = NULL;
xdebug_branch_info *branch_info = NULL;
op_array->reserved[XG_COV(dead_code_analysis_tracker_offset)] = (void*) XG_COV(dead_code_last_start_id);
/* Check for abstract methods and simply return from this function in those
* cases. */
if (op_array->fn_flags & ZEND_ACC_ABSTRACT) {
return;
}
/* Check whether this function should be filtered out */
{
/*
function_stack_entry tmp_fse;
tmp_fse.filename = STR_NAME_VAL(op_array->filename);
xdebug_build_fname_from_oparray(&tmp_fse.function, op_array);
printf(" - PREFIL FILTERED FOR %s (%s::%s): %s\n",
tmp_fse.filename, tmp_fse.function.class, tmp_fse.function.function,
op_array->reserved[XG_COV(code_coverage_filter_offset)] ? "YES" : "NO");
*/
if (op_array->reserved[XG_COV(code_coverage_filter_offset)]) {
return;
}
}
/* Run dead code analysis if requested */
if (XG_COV(code_coverage_dead_code_analysis) && (op_array->fn_flags & ZEND_ACC_DONE_PASS_TWO)) {
set = xdebug_set_create(op_array->last);
if (XG_COV(code_coverage_branch_check)) {
branch_info = xdebug_branch_info_create(op_array->last);
}
xdebug_analyse_oparray(op_array, set, branch_info);
}
/* 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);
}
if (set) {
xdebug_set_free(set);
}
if (branch_info) {
char function_name[1024];
xdebug_func func_info;
xdebug_build_fname_from_oparray(&func_info, op_array);
xdebug_func_format(function_name, sizeof(function_name), &func_info);
if (func_info.object_class) {
zend_string_release(func_info.object_class);
}
if (func_info.scope_class) {
zend_string_release(func_info.scope_class);
}
if (func_info.function) {
zend_string_release(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);
}
#if PHP_VERSION_ID >= 80100
if (!op_array->num_dynamic_func_defs) {
return;
}
for (i = 0; i < op_array->num_dynamic_func_defs; i++) {
prefill_from_oparray(filename, op_array->dynamic_func_defs[i]);
}
#endif
}
static int prefill_from_function_table(zend_op_array *opa)
{
if (opa->type == ZEND_USER_FUNCTION) {
if ((long) opa->reserved[XG_COV(dead_code_analysis_tracker_offset)] < XG_COV(dead_code_last_start_id)) {
prefill_from_oparray(opa->filename, opa);
}
}
return ZEND_HASH_APPLY_KEEP;
}
/* Set correct int format to use */
#if SIZEOF_ZEND_LONG == 4
# define XDEBUG_PTR_KEY_LEN 8
# define XDEBUG_PTR_KEY_FMT "%08X"
#else
# define XDEBUG_PTR_KEY_LEN 16
# define XDEBUG_PTR_KEY_FMT "%016lX"
#endif
static int prefill_from_class_table(zend_class_entry *ce)
{
if (ce->type == ZEND_USER_CLASS) {
zend_op_array *val;
ZEND_HASH_FOREACH_PTR(&ce->function_table, val) {
prefill_from_function_table(val);
} ZEND_HASH_FOREACH_END();
}
return ZEND_HASH_APPLY_KEEP;
}
static void xdebug_prefill_code_coverage(zend_op_array *op_array)
{
zend_op_array *function_op_array;
zend_class_entry *class_entry;
if ((long) op_array->reserved[XG_COV(dead_code_analysis_tracker_offset)] < XG_COV(dead_code_last_start_id)) {
prefill_from_oparray(op_array->filename, op_array);
}
ZEND_HASH_REVERSE_FOREACH_PTR(CG(function_table), function_op_array) {
if (_idx == XG_COV(prefill_function_count)) {
break;
}
prefill_from_function_table(function_op_array);
} ZEND_HASH_FOREACH_END();
XG_COV(prefill_function_count) = CG(function_table)->nNumUsed;
ZEND_HASH_REVERSE_FOREACH_PTR(CG(class_table), class_entry) {
if (_idx == XG_COV(prefill_class_count)) {
break;
}
prefill_from_class_table(class_entry);
} ZEND_HASH_FOREACH_END();
XG_COV(prefill_class_count) = CG(class_table)->nNumUsed;
}
void xdebug_code_coverage_start_of_function(zend_op_array *op_array, char *function_name)
{
xdebug_path *path = xdebug_path_new(NULL);
int orig_size = XG_COV(branches).size;
xdebug_prefill_code_coverage(op_array);
xdebug_path_info_add_path_for_level(XG_COV(paths_stack), path, XDEBUG_VECTOR_COUNT(XG_BASE(stack)));
if (orig_size == 0 || XDEBUG_VECTOR_COUNT(XG_BASE(stack)) >= orig_size) {
size_t i = 0;
XG_COV(branches).size = XDEBUG_VECTOR_COUNT(XG_BASE(stack)) + 32;
XG_COV(branches).last_branch_nr = realloc(XG_COV(branches).last_branch_nr, sizeof(int) * XG_COV(branches.size));
for (i = orig_size; i < XG_COV(branches).size; i++) {
XG_COV(branches).last_branch_nr[i] = -1;
}
}
XG_COV(branches).last_branch_nr[XDEBUG_VECTOR_COUNT(XG_BASE(stack))] = -1;
}
void xdebug_code_coverage_end_of_function(zend_op_array *op_array, zend_string *filename, char *function_name)
{
xdebug_str str = XDEBUG_STR_INITIALIZER;
xdebug_path *path = xdebug_path_info_get_path_for_level(XG_COV(paths_stack), XDEBUG_VECTOR_COUNT(XG_BASE(stack)));
if (!path || !path->elements) {
return;
}
xdebug_create_key_for_path(path, &str);
xdebug_branch_info_mark_end_of_function_reached(filename, function_name, str.d, str.l);
xdfree(str.d);
if (path) {
xdebug_path_free(path);
}
}
PHP_FUNCTION(xdebug_start_code_coverage)
{
zend_long options = 0;
if (!XDEBUG_MODE_IS(XDEBUG_MODE_COVERAGE)) {
php_error(E_WARNING, "Code coverage needs to be enabled in php.ini by setting 'xdebug.mode' to 'coverage'");
RETURN_FALSE;
}
if (zend_parse_parameters(ZEND_NUM_ARGS(), "|l", &options) == FAILURE) {
return;
}
XG_COV(code_coverage_unused) = (options & XDEBUG_CC_OPTION_UNUSED);
XG_COV(code_coverage_dead_code_analysis) = (options & XDEBUG_CC_OPTION_DEAD_CODE);
XG_COV(code_coverage_branch_check) = (options & XDEBUG_CC_OPTION_BRANCH_CHECK);
XG_COV(code_coverage_active) = 1;
RETURN_TRUE;
}
PHP_FUNCTION(xdebug_stop_code_coverage)
{
zend_bool cleanup = 1;
if (!XDEBUG_MODE_IS(XDEBUG_MODE_COVERAGE)) {
RETURN_FALSE;
}
if (zend_parse_parameters(ZEND_NUM_ARGS(), "|b", &cleanup) == FAILURE) {
return;
}
if (!XG_COV(code_coverage_active)) {
RETURN_FALSE;
}
if (cleanup) {
if (XG_COV(previous_filename)) {
zend_string_release(XG_COV(previous_filename));
}
XG_COV(previous_filename) = NULL;
XG_COV(previous_file) = NULL;
if (XG_COV(previous_mark_filename)) {
zend_string_release(XG_COV(previous_mark_filename));
}
XG_COV(previous_mark_filename) = NULL;
XG_COV(previous_mark_file) = NULL;
xdebug_hash_destroy(XG_COV(code_coverage_info));
XG_COV(code_coverage_info) = xdebug_hash_alloc(32, xdebug_coverage_file_dtor);
XG_COV(dead_code_last_start_id)++;
xdebug_path_info_dtor(XG_COV(paths_stack));
XG_COV(paths_stack) = xdebug_path_info_ctor();
}
XG_COV(code_coverage_active) = 0;
RETURN_TRUE;
}
static int xdebug_lineno_cmp(Bucket *f, Bucket *s)
{
if (f->h < s->h) {
return -1;
} else if (f->h > s->h) {
return 1;
} else {
return 0;
}
}
static void add_line(void *ret, xdebug_hash_element *e)
{
xdebug_coverage_line *line = (xdebug_coverage_line*) e->ptr;
zval *retval = (zval*) ret;
if (line->executable && (line->count == 0)) {
add_index_long(retval, line->lineno, -line->executable);
} else {
add_index_long(retval, line->lineno, 1);
}
}
static void add_branches(zval *retval, xdebug_branch_info *branch_info)
{
zval *branches, *branch, *out, *out_hit;
unsigned int i;
XDEBUG_MAKE_STD_ZVAL(branches);
array_init(branches);
for (i = 0; i < branch_info->starts->size; i++) {
if (xdebug_set_in(branch_info->starts, i)) {
size_t j = 0;
XDEBUG_MAKE_STD_ZVAL(branch);
array_init(branch);
add_assoc_long(branch, "op_start", i);
add_assoc_long(branch, "op_end", branch_info->branches[i].end_op);
add_assoc_long(branch, "line_start", branch_info->branches[i].start_lineno);
add_assoc_long(branch, "line_end", branch_info->branches[i].end_lineno);
add_assoc_long(branch, "hit", branch_info->branches[i].hit);
XDEBUG_MAKE_STD_ZVAL(out);
array_init(out);
for (j = 0; j < branch_info->branches[i].outs_count; j++) {
if (branch_info->branches[i].outs[j]) {
add_index_long(out, j, branch_info->branches[i].outs[j]);
}
}
add_assoc_zval(branch, "out", out);
XDEBUG_MAKE_STD_ZVAL(out_hit);
array_init(out_hit);
for (j = 0; j < branch_info->branches[i].outs_count; j++) {
if (branch_info->branches[i].outs[j]) {
add_index_long(out_hit, j, branch_info->branches[i].outs_hit[j]);
}
}
add_assoc_zval(branch, "out_hit", out_hit);
add_index_zval(branches, i, branch);
efree(out_hit);
efree(out);
efree(branch);
}
}
add_assoc_zval_ex(retval, "branches", HASH_KEY_SIZEOF("branches"), branches);
efree(branches);
}
static void add_paths(zval *retval, xdebug_branch_info *branch_info)
{
zval *paths, *path, *path_container;
unsigned int i, j;
XDEBUG_MAKE_STD_ZVAL(paths);
array_init(paths);
for (i = 0; i < branch_info->path_info.paths_count; i++) {
XDEBUG_MAKE_STD_ZVAL(path);
array_init(path);
XDEBUG_MAKE_STD_ZVAL(path_container);
array_init(path_container);
for (j = 0; j < branch_info->path_info.paths[i]->elements_count; j++) {
add_next_index_long(path, branch_info->path_info.paths[i]->elements[j]);
}
add_assoc_zval(path_container, "path", path);
add_assoc_long(path_container, "hit", branch_info->path_info.paths[i]->hit);
add_next_index_zval(paths, path_container);
efree(path_container);
efree(path);
}
add_assoc_zval_ex(retval, "paths", HASH_KEY_SIZEOF("paths"), paths);
efree(paths);
}
static void add_cc_function(void *ret, xdebug_hash_element *e)
{
xdebug_coverage_function *function = (xdebug_coverage_function*) e->ptr;
zval *retval = (zval*) ret;
zval *function_info;
zend_string *trait_scope = NULL;
XDEBUG_MAKE_STD_ZVAL(function_info);
array_init(function_info);
if (function->branch_info) {
add_branches(function_info, function->branch_info);
add_paths(function_info, function->branch_info);
}
if ((trait_scope = xdebug_get_trait_scope(function->name)) != NULL) {
char *with_scope = xdebug_sprintf("%s->%s", ZSTR_VAL(trait_scope), function->name);
add_assoc_zval_ex(retval, with_scope, strlen(with_scope), function_info);
} else {
add_assoc_zval_ex(retval, function->name, HASH_KEY_STRLEN(function->name), function_info);
}
efree(function_info);
}
static void add_file(void *ret, xdebug_hash_element *e)
{
xdebug_coverage_file *file = (xdebug_coverage_file*) e->ptr;
zval *retval = (zval*) ret;
zval *lines, *functions, *file_info;
HashTable *target_hash;
/* Add all the lines */
XDEBUG_MAKE_STD_ZVAL(lines);
array_init(lines);
xdebug_hash_apply(file->lines, (void *) lines, add_line);
/* Sort on linenumber */
target_hash = HASH_OF(lines);
zend_hash_sort(target_hash, xdebug_lineno_cmp, 0);
/* Add the branch and path info */
if (XG_COV(code_coverage_branch_check)) {
XDEBUG_MAKE_STD_ZVAL(file_info);
array_init(file_info);
XDEBUG_MAKE_STD_ZVAL(functions);
array_init(functions);
xdebug_hash_apply(file->functions, (void *) functions, add_cc_function);
add_assoc_zval_ex(file_info, "lines", HASH_KEY_SIZEOF("lines"), lines);
add_assoc_zval_ex(file_info, "functions", HASH_KEY_SIZEOF("functions"), functions);
add_assoc_zval_ex(retval, ZSTR_VAL(file->name), ZSTR_LEN(file->name), file_info);
efree(functions);
efree(file_info);
} else {
add_assoc_zval_ex(retval, ZSTR_VAL(file->name), ZSTR_LEN(file->name), lines);
}
efree(lines);
}
PHP_FUNCTION(xdebug_get_code_coverage)
{
array_init(return_value);
if (!XG_COV(code_coverage_info)) {
return;
}
xdebug_hash_apply(XG_COV(code_coverage_info), (void *) return_value, add_file);
}
PHP_FUNCTION(xdebug_get_function_count)
{
RETURN_LONG(XG_BASE(function_count));
}
PHP_FUNCTION(xdebug_code_coverage_started)
{
RETURN_BOOL(XG_COV(code_coverage_active));
}
void xdebug_init_coverage_globals(xdebug_coverage_globals_t *xg)
{
xg->previous_filename = NULL;
xg->previous_file = NULL;
xg->previous_mark_filename = NULL;
xg->previous_mark_file = NULL;
xg->paths_stack = NULL;
xg->branches.size = 0;
xg->branches.last_branch_nr = NULL;
xg->code_coverage_active = 0;
/* Get reserved offset */
xg->dead_code_analysis_tracker_offset = zend_xdebug_cc_run_offset;
xg->dead_code_last_start_id = 1;
xg->code_coverage_filter_offset = zend_xdebug_filter_offset;
}
void xdebug_coverage_count_line_if_active(zend_op_array *op_array, zend_string *file, int lineno)
{
if (XG_COV(code_coverage_active) && !op_array->reserved[XG_COV(code_coverage_filter_offset)]) {
xdebug_count_line(file, lineno, 0, 0);
}
}
void xdebug_coverage_count_line_if_branch_check_active(zend_op_array *op_array, zend_string *file, int lineno)
{
if (XG_COV(code_coverage_active) && XG_COV(code_coverage_branch_check)) {
xdebug_coverage_count_line_if_active(op_array, file, lineno);
}
}
void xdebug_coverage_record_if_active(zend_execute_data *execute_data, zend_op_array *op_array)
{
if (!op_array->reserved[XG_COV(code_coverage_filter_offset)] && XG_COV(code_coverage_active)) {
xdebug_print_opcode_info(execute_data, execute_data->opline);
}
}
void xdebug_coverage_compile_file(zend_op_array *op_array)
{
if (XG_COV(code_coverage_active) && XG_COV(code_coverage_unused) && (op_array->fn_flags & ZEND_ACC_DONE_PASS_TWO)) {
xdebug_prefill_code_coverage(op_array);
}
}
int xdebug_coverage_execute_ex(function_stack_entry *fse, zend_op_array *op_array, zend_string **tmp_filename, char **tmp_function_name)
{
xdebug_func func_info;
if (!fse->filtered_code_coverage && XG_COV(code_coverage_active) && XG_COV(code_coverage_unused)) {
char buffer[1024];
*tmp_filename = zend_string_copy(op_array->filename);
xdebug_build_fname_from_oparray(&func_info, op_array);
xdebug_func_format(buffer, sizeof(buffer), &func_info);
*tmp_function_name = xdstrdup(buffer);
xdebug_code_coverage_start_of_function(op_array, *tmp_function_name);
if (func_info.object_class) {
zend_string_release(func_info.object_class);
}
if (func_info.scope_class) {
zend_string_release(func_info.scope_class);
}
if (func_info.function) {
zend_string_release(func_info.function);
}
return 1;
}
return 0;
}