#include "phpdbg.h"
#include "phpdbg_print.h"
#include "phpdbg_utils.h"
#include "phpdbg_opcode.h"
#include "phpdbg_prompt.h"
ZEND_EXTERN_MODULE_GLOBALS(phpdbg);
#define PHPDBG_PRINT_COMMAND_D(f, h, a, m, l, s) \
PHPDBG_COMMAND_D_EXP(f, h, a, m, l, s, &phpdbg_prompt_commands[9])
const phpdbg_command_t phpdbg_print_commands[] = {
PHPDBG_PRINT_COMMAND_D(exec, "print out the instructions in the execution context", 'e', print_exec, NULL, 0),
PHPDBG_PRINT_COMMAND_D(opline, "print out the instruction in the current opline", 'o', print_opline, NULL, 0),
PHPDBG_PRINT_COMMAND_D(class, "print out the instructions in the specified class", 'c', print_class, NULL, "s"),
PHPDBG_PRINT_COMMAND_D(method, "print out the instructions in the specified method", 'm', print_method, NULL, "m"),
PHPDBG_PRINT_COMMAND_D(func, "print out the instructions in the specified function", 'f', print_func, NULL, "s"),
PHPDBG_PRINT_COMMAND_D(stack, "print out the instructions in the current stack", 's', print_stack, NULL, 0),
PHPDBG_END_COMMAND
};
PHPDBG_PRINT(opline)
{
if (EG(in_execution) && EG(current_execute_data)) {
phpdbg_print_opline(EG(current_execute_data), 1 TSRMLS_CC);
} else {
phpdbg_error("Not Executing!");
}
return SUCCESS;
}
static inline void phpdbg_print_function_helper(zend_function *method TSRMLS_DC)
{
switch (method->type) {
case ZEND_USER_FUNCTION: {
zend_op_array* op_array = &(method->op_array);
HashTable vars;
if (op_array) {
zend_op *opline = &(op_array->opcodes[0]);
zend_uint opcode = 0,
end = op_array->last-1;
if (method->common.scope) {
phpdbg_writeln("\tL%d-%d %s::%s() %s",
op_array->line_start, op_array->line_end,
method->common.scope->name,
method->common.function_name,
op_array->filename ? op_array->filename : "unknown");
} else {
phpdbg_writeln("\tL%d-%d %s() %s",
method->common.function_name ? op_array->line_start : 0,
method->common.function_name ? op_array->line_end : 0,
method->common.function_name ? method->common.function_name : "{main}",
op_array->filename ? op_array->filename : "unknown");
}
zend_hash_init(&vars, op_array->last, NULL, NULL, 0);
do {
char *decode = phpdbg_decode_opline(op_array, opline, &vars TSRMLS_CC);
if (decode != NULL) {
phpdbg_writeln("\t\tL%u\t%p %-30s %s",
opline->lineno,
opline,
phpdbg_decode_opcode(opline->opcode),
decode);
free(decode);
} else {
phpdbg_error("\tFailed to decode opline %16p", opline);
}
opline++;
} while (opcode++ < end);
zend_hash_destroy(&vars);
}
} break;
default: {
if (method->common.scope) {
phpdbg_writeln("\tInternal %s::%s()", method->common.scope->name, method->common.function_name);
} else {
phpdbg_writeln("\tInternal %s()", method->common.function_name);
}
}
}
}
PHPDBG_PRINT(exec)
{
if (PHPDBG_G(exec)) {
if (!PHPDBG_G(ops)) {
phpdbg_compile(TSRMLS_C);
}
if (PHPDBG_G(ops)) {
phpdbg_notice("Context %s", PHPDBG_G(exec));
phpdbg_print_function_helper((zend_function*) PHPDBG_G(ops) TSRMLS_CC);
}
} else {
phpdbg_error("No execution context set");
}
return SUCCESS;
}
PHPDBG_PRINT(stack)
{
zend_op_array *ops = EG(active_op_array);
if (EG(in_execution) && ops) {
if (ops->function_name) {
if (ops->scope) {
phpdbg_notice("Stack in %s::%s()", ops->scope->name, ops->function_name);
} else {
phpdbg_notice("Stack in %s()", ops->function_name);
}
} else {
if (ops->filename) {
phpdbg_notice("Stack in %s", ops->filename);
} else {
phpdbg_notice("Stack @ %p", ops);
}
}
phpdbg_print_function_helper((zend_function*) ops TSRMLS_CC);
} else {
phpdbg_error("Not Executing!");
}
return SUCCESS;
}
PHPDBG_PRINT(class)
{
zend_class_entry **ce;
if (zend_lookup_class(param->str, param->len, &ce TSRMLS_CC) == SUCCESS) {
phpdbg_notice("%s %s: %s",
((*ce)->type == ZEND_USER_CLASS) ?
"User" : "Internal",
((*ce)->ce_flags & ZEND_ACC_INTERFACE) ?
"Interface" :
((*ce)->ce_flags & ZEND_ACC_ABSTRACT) ?
"Abstract Class" :
"Class",
(*ce)->name);
phpdbg_writeln("Methods (%d):", zend_hash_num_elements(&(*ce)->function_table));
if (zend_hash_num_elements(&(*ce)->function_table)) {
HashPosition position;
zend_function *method;
for (zend_hash_internal_pointer_reset_ex(&(*ce)->function_table, &position);
zend_hash_get_current_data_ex(&(*ce)->function_table, (void**) &method, &position) == SUCCESS;
zend_hash_move_forward_ex(&(*ce)->function_table, &position)) {
phpdbg_print_function_helper(method TSRMLS_CC);
}
}
} else {
phpdbg_error("The class %s could not be found", param->str);
}
return SUCCESS;
}
PHPDBG_PRINT(method)
{
zend_class_entry **ce;
if (zend_lookup_class(param->method.class, strlen(param->method.class), &ce TSRMLS_CC) == SUCCESS) {
zend_function *fbc;
char *lcname = zend_str_tolower_dup(param->method.name, strlen(param->method.name));
if (zend_hash_find(&(*ce)->function_table, lcname, strlen(lcname)+1, (void**)&fbc) == SUCCESS) {
phpdbg_notice("%s Method %s",
(fbc->type == ZEND_USER_FUNCTION) ? "User" : "Internal",
fbc->common.function_name);
phpdbg_print_function_helper(fbc TSRMLS_CC);
} else {
phpdbg_error("The method %s could not be found", param->method.name);
}
efree(lcname);
} else {
phpdbg_error("The class %s could not be found", param->method.class);
}
return SUCCESS;
}
PHPDBG_PRINT(func)
{
HashTable *func_table = EG(function_table);
zend_function* fbc;
const char *func_name = param->str;
size_t func_name_len = param->len;
char *lcname;
if (func_name[0] == '.') {
if (EG(scope)) {
func_name++;
func_name_len--;
func_table = &EG(scope)->function_table;
} else {
phpdbg_error("No active class");
return SUCCESS;
}
} else if (!EG(function_table)) {
phpdbg_error("No function table loaded");
return SUCCESS;
} else {
func_table = EG(function_table);
}
lcname = zend_str_tolower_dup(func_name, func_name_len);
if (zend_hash_find(func_table, lcname, strlen(lcname)+1, (void**)&fbc) == SUCCESS) {
phpdbg_notice("%s %s %s",
(fbc->type == ZEND_USER_FUNCTION) ? "User" : "Internal",
(fbc->common.scope) ? "Method" : "Function",
fbc->common.function_name);
phpdbg_print_function_helper(fbc TSRMLS_CC);
} else {
phpdbg_error("The function %s could not be found", func_name);
}
efree(lcname);
return SUCCESS;
}