diff options
Diffstat (limited to 'sapi/phpdbg/phpdbg_info.c')
| -rw-r--r-- | sapi/phpdbg/phpdbg_info.c | 488 |
1 files changed, 488 insertions, 0 deletions
diff --git a/sapi/phpdbg/phpdbg_info.c b/sapi/phpdbg/phpdbg_info.c new file mode 100644 index 0000000000..4774fa5a9e --- /dev/null +++ b/sapi/phpdbg/phpdbg_info.c @@ -0,0 +1,488 @@ +/* + +----------------------------------------------------------------------+ + | PHP Version 5 | + +----------------------------------------------------------------------+ + | Copyright (c) 1997-2014 The PHP Group | + +----------------------------------------------------------------------+ + | This source file is subject to version 3.01 of the PHP license, | + | that is bundled with this package in the file LICENSE, and is | + | available through the world-wide-web at the following url: | + | http://www.php.net/license/3_01.txt | + | If you did not receive a copy of the PHP license and are unable to | + | obtain it through the world-wide-web, please send a note to | + | license@php.net so we can mail you a copy immediately. | + +----------------------------------------------------------------------+ + | Authors: Felipe Pena <felipe@php.net> | + | Authors: Joe Watkins <joe.watkins@live.co.uk> | + | Authors: Bob Weinand <bwoebi@php.net> | + +----------------------------------------------------------------------+ +*/ + +#include "php.h" +#include "phpdbg.h" +#include "phpdbg_utils.h" +#include "phpdbg_info.h" +#include "phpdbg_bp.h" +#include "phpdbg_prompt.h" + +ZEND_EXTERN_MODULE_GLOBALS(phpdbg); + +#define PHPDBG_INFO_COMMAND_D(f, h, a, m, l, s, flags) \ + PHPDBG_COMMAND_D_EXP(f, h, a, m, l, s, &phpdbg_prompt_commands[14], flags) + +const phpdbg_command_t phpdbg_info_commands[] = { + PHPDBG_INFO_COMMAND_D(break, "show breakpoints", 'b', info_break, NULL, 0, PHPDBG_ASYNC_SAFE), + PHPDBG_INFO_COMMAND_D(files, "show included files", 'F', info_files, NULL, 0, PHPDBG_ASYNC_SAFE), + PHPDBG_INFO_COMMAND_D(classes, "show loaded classes", 'c', info_classes, NULL, 0, PHPDBG_ASYNC_SAFE), + PHPDBG_INFO_COMMAND_D(funcs, "show loaded classes", 'f', info_funcs, NULL, 0, PHPDBG_ASYNC_SAFE), + PHPDBG_INFO_COMMAND_D(error, "show last error", 'e', info_error, NULL, 0, PHPDBG_ASYNC_SAFE), + PHPDBG_INFO_COMMAND_D(constants, "show user defined constants", 'd', info_constants, NULL, 0, PHPDBG_ASYNC_SAFE), + PHPDBG_INFO_COMMAND_D(vars, "show active variables", 'v', info_vars, NULL, 0, PHPDBG_ASYNC_SAFE), + PHPDBG_INFO_COMMAND_D(globals, "show superglobals", 'g', info_globals, NULL, 0, PHPDBG_ASYNC_SAFE), + PHPDBG_INFO_COMMAND_D(literal, "show active literal constants", 'l', info_literal, NULL, 0, PHPDBG_ASYNC_SAFE), + PHPDBG_INFO_COMMAND_D(memory, "show memory manager stats", 'm', info_memory, NULL, 0, PHPDBG_ASYNC_SAFE), + PHPDBG_END_COMMAND +}; + +PHPDBG_INFO(break) /* {{{ */ +{ + phpdbg_print_breakpoints(PHPDBG_BREAK_FILE TSRMLS_CC); + phpdbg_print_breakpoints(PHPDBG_BREAK_SYM TSRMLS_CC); + phpdbg_print_breakpoints(PHPDBG_BREAK_METHOD TSRMLS_CC); + phpdbg_print_breakpoints(PHPDBG_BREAK_OPLINE TSRMLS_CC); + phpdbg_print_breakpoints(PHPDBG_BREAK_FILE_OPLINE TSRMLS_CC); + phpdbg_print_breakpoints(PHPDBG_BREAK_FUNCTION_OPLINE TSRMLS_CC); + phpdbg_print_breakpoints(PHPDBG_BREAK_METHOD_OPLINE TSRMLS_CC); + phpdbg_print_breakpoints(PHPDBG_BREAK_COND TSRMLS_CC); + phpdbg_print_breakpoints(PHPDBG_BREAK_OPCODE TSRMLS_CC); + + return SUCCESS; +} /* }}} */ + +PHPDBG_INFO(files) /* {{{ */ +{ + HashPosition pos; + char *fname; + + phpdbg_try_access { + phpdbg_notice("includedfilecount", "num=\"%d\"", "Included files: %d", zend_hash_num_elements(&EG(included_files))); + } phpdbg_catch_access { + phpdbg_error("signalsegv", "", "Could not fetch included file count, invalid data source"); + } phpdbg_end_try_access(); + + phpdbg_try_access { + zend_hash_internal_pointer_reset_ex(&EG(included_files), &pos); + while (zend_hash_get_current_key_ex(&EG(included_files), &fname, NULL, NULL, 0, &pos) == HASH_KEY_IS_STRING) { + phpdbg_writeln("includedfile", "name=\"%s\"", "File: %s", fname); + zend_hash_move_forward_ex(&EG(included_files), &pos); + } + } phpdbg_catch_access { + phpdbg_error("signalsegv", "", "Could not fetch file name, invalid data source, aborting included file listing"); + } phpdbg_end_try_access(); + + return SUCCESS; +} /* }}} */ + +PHPDBG_INFO(error) /* {{{ */ +{ + if (PG(last_error_message)) { + phpdbg_try_access { + phpdbg_writeln("lasterror", "error=\"%s\" file=\"%s\" line=\"%d\"", "Last error: %s at %s line %d", PG(last_error_message), PG(last_error_file), PG(last_error_lineno)); + } phpdbg_catch_access { + phpdbg_notice("lasterror", "error=\"\"", "No error found!"); + } phpdbg_end_try_access(); + } else { + phpdbg_notice("lasterror", "error=\"\"", "No error found!"); + } + return SUCCESS; +} /* }}} */ + +PHPDBG_INFO(constants) /* {{{ */ +{ + HashPosition pos; + HashTable consts; + zend_constant *data; + + zend_hash_init(&consts, 8, NULL, NULL, 0); + + if (EG(zend_constants)) { + phpdbg_try_access { + zend_hash_internal_pointer_reset_ex(EG(zend_constants), &pos); + while (zend_hash_get_current_data_ex(EG(zend_constants), (void **) &data, &pos) == SUCCESS) { + if (data->module_number == PHP_USER_CONSTANT) { + zend_hash_update(&consts, data->name, data->name_len, (void **) &data, sizeof(zend_constant *), NULL); + } + zend_hash_move_forward_ex(EG(zend_constants), &pos); + } + } phpdbg_catch_access { + phpdbg_error("signalsegv", "", "Cannot fetch all the constants, invalid data source"); + } phpdbg_end_try_access(); + } + + phpdbg_notice("constantinfo", "num=\"%d\"", "User-defined constants (%d)", zend_hash_num_elements(&consts)); + + if (zend_hash_num_elements(&consts)) { + phpdbg_out("Address Refs Type Constant\n"); + for (zend_hash_internal_pointer_reset_ex(&consts, &pos); + zend_hash_get_current_data_ex(&consts, (void **) &data, &pos) == SUCCESS; + zend_hash_move_forward_ex(&consts, &pos)) { + data = *(zend_constant **) data; + +#define VARIABLEINFO(attrs, msg, ...) phpdbg_writeln("constant", "address=\"%p\" refcount=\"%d\" type=\"%s\" name=\"%.*s\" " attrs, "%-18p %-7d %-9s %.*s" msg, &data->value, Z_REFCOUNT(data->value), zend_zval_type_name(&data->value), data->name_len - 1, data->name, ##__VA_ARGS__) + + switch (Z_TYPE(data->value)) { + case IS_STRING: + phpdbg_try_access { + VARIABLEINFO("length=\"%d\" value=\"%.*s\"", "\nstring (%d) \"%.*s%s\"", Z_STRLEN(data->value), Z_STRLEN(data->value) < 255 ? Z_STRLEN(data->value) : 255, Z_STRVAL(data->value), Z_STRLEN(data->value) > 255 ? "..." : ""); + } phpdbg_catch_access { + VARIABLEINFO("", ""); + } phpdbg_end_try_access(); + break; + case IS_BOOL: + VARIABLEINFO("value=\"%s\"", "\nbool (%s)", Z_LVAL(data->value) ? "true" : "false"); + break; + case IS_LONG: + VARIABLEINFO("value=\"%ld\"", "\nint (%ld)", Z_LVAL(data->value)); + break; + case IS_DOUBLE: + VARIABLEINFO("value=\"%lf\"", "\ndouble (%lf)", Z_DVAL(data->value)); + break; + default: + VARIABLEINFO("", ""); + +#undef VARIABLEINFO + } + } + } + + return SUCCESS; +} /* }}} */ + +static int phpdbg_arm_auto_global(zend_auto_global *auto_global TSRMLS_DC) { + if (auto_global->armed) { + if (PHPDBG_G(flags) & PHPDBG_IN_SIGNAL_HANDLER) { + phpdbg_notice("variableinfo", "unreachable=\"%.*s\"", "Cannot show information about superglobal variable %.*s", auto_global->name_len, auto_global->name); + } else { + auto_global->armed = auto_global->auto_global_callback(auto_global->name, auto_global->name_len TSRMLS_CC); + } + } + + return 0; +} + +static int phpdbg_print_symbols(zend_bool show_globals TSRMLS_DC) { + HashTable vars, *symtable; + HashPosition pos; + char *var; + zval **data; + + if (!EG(active_op_array)) { + phpdbg_error("inactive", "type=\"op_array\"", "No active op array!"); + return SUCCESS; + } + + if (!EG(active_symbol_table)) { + zend_rebuild_symbol_table(TSRMLS_C); + + if (!EG(active_symbol_table)) { + phpdbg_error("inactive", "type=\"symbol_table\"", "No active symbol table!"); + return SUCCESS; + } + } + + + if (show_globals) { + /* that array should only be manipulated during init, so safe for async access during execution */ + zend_hash_apply(CG(auto_globals), (apply_func_t) phpdbg_arm_auto_global TSRMLS_CC); + symtable = &EG(symbol_table); + } else { + symtable = EG(active_symbol_table); + } + + zend_hash_init(&vars, 8, NULL, NULL, 0); + + phpdbg_try_access { + zend_hash_internal_pointer_reset_ex(symtable, &pos); + while (zend_hash_get_current_key_ex(symtable, &var, NULL, NULL, 0, &pos) == HASH_KEY_IS_STRING) { + zend_hash_get_current_data_ex(symtable, (void **)&data, &pos); + if (zend_is_auto_global(var, strlen(var) TSRMLS_CC) ^ !show_globals) { + zend_hash_update(&vars, var, strlen(var)+1, (void**)data, sizeof(zval*), NULL); + } + zend_hash_move_forward_ex(symtable, &pos); + } + } phpdbg_catch_access { + phpdbg_error("signalsegv", "", "Cannot fetch all data from the symbol table, invalid data source"); + } phpdbg_end_try_access(); + + if (show_globals) { + phpdbg_notice("variableinfo", "num=\"%d\"", "Superglobal variables (%d)", zend_hash_num_elements(&vars)); + } else { + zend_op_array *ops = EG(active_op_array); + + if (ops->function_name) { + if (ops->scope) { + phpdbg_notice("variableinfo", "method=\"%s::%s\" num=\"%d\"", "Variables in %s::%s() (%d)", ops->scope->name, ops->function_name, zend_hash_num_elements(&vars)); + } else { + phpdbg_notice("variableinfo", "function=\"%s\" num=\"%d\"", "Variables in %s() (%d)", ops->function_name, zend_hash_num_elements(&vars)); + } + } else { + if (ops->filename) { + phpdbg_notice("variableinfo", "file=\"%s\" num=\"%d\"", "Variables in %s (%d)", ops->filename, zend_hash_num_elements(&vars)); + } else { + phpdbg_notice("variableinfo", "opline=\"%p\" num=\"%d\"", "Variables @ %p (%d)", ops, zend_hash_num_elements(&vars)); + } + } + } + + if (zend_hash_num_elements(&vars)) { + phpdbg_out("Address Refs Type Variable\n"); + for (zend_hash_internal_pointer_reset_ex(&vars, &pos); + zend_hash_get_current_data_ex(&vars, (void**) &data, &pos) == SUCCESS; + zend_hash_move_forward_ex(&vars, &pos)) { + char *var; + zend_bool invalid_data = 1; + + zend_hash_get_current_key_ex(&vars, &var, NULL, NULL, 0, &pos); + + phpdbg_try_access { + if (!(invalid_data = !*data)) { +#define VARIABLEINFO(attrs, msg, ...) phpdbg_writeln("variable", "address=\"%p\" refcount=\"%d\" type=\"%s\" refstatus=\"%s\" name=\"%s\" " attrs, "%-18p %-7d %-9s %s$%s" msg, *data, Z_REFCOUNT_PP(data), zend_zval_type_name(*data), Z_ISREF_PP(data) ? "&": "", var, ##__VA_ARGS__) + + switch (Z_TYPE_PP(data)) { + case IS_RESOURCE: + phpdbg_try_access { + int type; + VARIABLEINFO("type=\"%s\"", "\n|-------(typeof)------> (%s)\n", zend_list_find(Z_RESVAL_PP(data), &type) ? zend_rsrc_list_get_rsrc_type(type TSRMLS_CC) : "unknown"); + } phpdbg_catch_access { + VARIABLEINFO("type=\"unknown\"", "\n|-------(typeof)------> (unknown)\n"); + } phpdbg_end_try_access(); + break; + case IS_OBJECT: + phpdbg_try_access { + VARIABLEINFO("instanceof=\"%s\"", "\n|-----(instanceof)----> (%s)\n", Z_OBJCE_PP(data)->name); + } phpdbg_catch_access { + VARIABLEINFO("instanceof=\"%s\"", "\n|-----(instanceof)----> (unknown)\n"); + } phpdbg_end_try_access(); + break; + case IS_STRING: + phpdbg_try_access { + VARIABLEINFO("length=\"%d\" value=\"%.*s\"", "\nstring (%d) \"%.*s%s\"", Z_STRLEN_PP(data), Z_STRLEN_PP(data) < 255 ? Z_STRLEN_PP(data) : 255, Z_STRVAL_PP(data), Z_STRLEN_PP(data) > 255 ? "..." : ""); + } phpdbg_catch_access { + VARIABLEINFO("", ""); + } phpdbg_end_try_access(); + break; + case IS_BOOL: + VARIABLEINFO("value=\"%s\"", "\nbool (%s)", Z_LVAL_PP(data) ? "true" : "false"); + break; + case IS_LONG: + VARIABLEINFO("value=\"%ld\"", "\nint (%ld)", Z_LVAL_PP(data)); + break; + case IS_DOUBLE: + VARIABLEINFO("value=\"%lf\"", "\ndouble (%lf)", Z_DVAL_PP(data)); + break; + default: + VARIABLEINFO("", ""); + } + } + +#undef VARIABLEINFO + } phpdbg_end_try_access(); + + if (invalid_data) { + phpdbg_writeln("variable", "name=\"%s\"", "n/a\tn/a\tn/a\t$%s", var); + } + } + } + + zend_hash_destroy(&vars); + + return SUCCESS; +} /* }}} */ + +PHPDBG_INFO(vars) /* {{{ */ +{ + return phpdbg_print_symbols(0 TSRMLS_CC); +} + +PHPDBG_INFO(globals) /* {{{ */ +{ + return phpdbg_print_symbols(1 TSRMLS_CC); +} + +PHPDBG_INFO(literal) /* {{{ */ +{ + /* literals are assumed to not be manipulated during executing of their op_array and as such async safe */ + if ((EG(in_execution) && EG(active_op_array)) || PHPDBG_G(ops)) { + zend_op_array *ops = EG(active_op_array) ? EG(active_op_array) : PHPDBG_G(ops); + int literal = 0, count = ops->last_literal-1; + + if (ops->function_name) { + if (ops->scope) { + phpdbg_notice("literalinfo", "method=\"%s::%s\" num=\"%d\"", "Literal Constants in %s::%s() (%d)", ops->scope->name, ops->function_name, count); + } else { + phpdbg_notice("literalinfo", "function=\"%s\" num=\"%d\"", "Literal Constants in %s() (%d)", ops->function_name, count); + } + } else { + if (ops->filename) { + phpdbg_notice("literalinfo", "file=\"%s\" num=\"%d\"", "Literal Constants in %s (%d)", ops->filename, count); + } else { + phpdbg_notice("literalinfo", "opline=\"%p\" num=\"%d\"", "Literal Constants @ %p (%d)", ops, count); + } + } + + while (literal < ops->last_literal) { + if (Z_TYPE(ops->literals[literal].constant) != IS_NULL) { + phpdbg_write("literal", "id=\"%u\"", "|-------- C%u -------> [", literal); + zend_print_zval(&ops->literals[literal].constant, 0); + phpdbg_out("]\n"); + } + literal++; + } + } else { + phpdbg_error("inactive", "type=\"execution\"", "Not executing!"); + } + + return SUCCESS; +} /* }}} */ + +PHPDBG_INFO(memory) /* {{{ */ +{ + size_t used, real, peak_used, peak_real; + zend_mm_heap *heap; + zend_bool is_mm; + + if (PHPDBG_G(flags) & PHPDBG_IN_SIGNAL_HANDLER) { + heap = zend_mm_set_heap(phpdbg_original_heap_sigsafe_mem(TSRMLS_C) TSRMLS_CC); + } + if ((is_mm = is_zend_mm(TSRMLS_C))) { + used = zend_memory_usage(0 TSRMLS_CC); + real = zend_memory_usage(1 TSRMLS_CC); + peak_used = zend_memory_peak_usage(0 TSRMLS_CC); + peak_real = zend_memory_peak_usage(1 TSRMLS_CC); + } + if (PHPDBG_G(flags) & PHPDBG_IN_SIGNAL_HANDLER) { + zend_mm_set_heap(heap TSRMLS_CC); + } + + if (is_mm) { + phpdbg_notice("meminfo", "", "Memory Manager Information"); + phpdbg_notice("current", "", "Current"); + phpdbg_writeln("used", "mem=\"%.3f\"", "|-------> Used:\t%.3f kB", (float) (used / 1024)); + phpdbg_writeln("real", "mem=\"%.3f\"", "|-------> Real:\t%.3f kB", (float) (real / 1024)); + phpdbg_notice("peak", "", "Peak"); + phpdbg_writeln("used", "mem=\"%.3f\"", "|-------> Used:\t%.3f kB", (float) (peak_used / 1024)); + phpdbg_writeln("real", "mem=\"%.3f\"", "|-------> Real:\t%.3f kB", (float) (peak_real / 1024)); + } else { + phpdbg_error("inactive", "type=\"memory_manager\"", "Memory Manager Disabled!"); + } + return SUCCESS; +} /* }}} */ + +static inline void phpdbg_print_class_name(zend_class_entry **ce TSRMLS_DC) /* {{{ */ +{ + phpdbg_writeln("class", "type=\"%s\" flags=\"%s\" name=\"%s\" methodcount=\"%d\"", "%s %s %s (%d)", + ((*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, zend_hash_num_elements(&(*ce)->function_table)); +} /* }}} */ + +PHPDBG_INFO(classes) /* {{{ */ +{ + HashPosition position; + zend_class_entry **ce; + HashTable classes; + + zend_hash_init(&classes, 8, NULL, NULL, 0); + + phpdbg_try_access { + for (zend_hash_internal_pointer_reset_ex(EG(class_table), &position); + zend_hash_get_current_data_ex(EG(class_table), (void**)&ce, &position) == SUCCESS; + zend_hash_move_forward_ex(EG(class_table), &position)) { + if ((*ce)->type == ZEND_USER_CLASS) { + zend_hash_next_index_insert(&classes, ce, sizeof(ce), NULL); + } + } + } phpdbg_catch_access { + phpdbg_notice("signalsegv", "", "Not all classes could be fetched, possibly invalid data source"); + } phpdbg_end_try_access(); + + phpdbg_notice("classinfo", "num=\"%d\"", "User Classes (%d)", zend_hash_num_elements(&classes)); + + /* once added, assume that classes are stable... until shutdown. */ + for (zend_hash_internal_pointer_reset_ex(&classes, &position); + zend_hash_get_current_data_ex(&classes, (void**)&ce, &position) == SUCCESS; + zend_hash_move_forward_ex(&classes, &position)) { + + phpdbg_print_class_name(ce TSRMLS_CC); + + if ((*ce)->parent) { + zend_class_entry *pce; + + phpdbg_xml("<parents %r>"); + pce = (*ce)->parent; + do { + phpdbg_out("|-------- "); + phpdbg_print_class_name(&pce TSRMLS_CC); + } while ((pce = pce->parent)); + phpdbg_xml("</parents>"); + } + + if ((*ce)->info.user.filename) { + phpdbg_writeln("classsource", "file=\"%s\" line=\"%u\"", "|---- in %s on line %u", (*ce)->info.user.filename, (*ce)->info.user.line_start); + } else { + phpdbg_writeln("classsource", "", "|---- no source code"); + } + } + + zend_hash_destroy(&classes); + + return SUCCESS; +} /* }}} */ + +PHPDBG_INFO(funcs) /* {{{ */ +{ + HashPosition position; + zend_function *zf, **pzf; + HashTable functions; + + zend_hash_init(&functions, 8, NULL, NULL, 0); + + phpdbg_try_access { + for (zend_hash_internal_pointer_reset_ex(EG(function_table), &position); + zend_hash_get_current_data_ex(EG(function_table), (void**)&zf, &position) == SUCCESS; + zend_hash_move_forward_ex(EG(function_table), &position)) { + if (zf->type == ZEND_USER_FUNCTION) { + zend_hash_next_index_insert(&functions, (void**) &zf, sizeof(zend_function), NULL); + } + } + } phpdbg_catch_access { + phpdbg_notice("signalsegv", "", "Not all functions could be fetched, possibly invalid data source"); + } phpdbg_end_try_access(); + + phpdbg_notice("functioninfo", "num=\"%d\"", "User Functions (%d)", zend_hash_num_elements(&functions)); + + for (zend_hash_internal_pointer_reset_ex(&functions, &position); + zend_hash_get_current_data_ex(&functions, (void**)&pzf, &position) == SUCCESS; + zend_hash_move_forward_ex(&functions, &position)) { + zend_op_array *op_array = &((*pzf)->op_array); + + phpdbg_write("function", "name=\"%s\"", "|-------- %s", op_array->function_name ? op_array->function_name : "{main}"); + + if (op_array->filename) { + phpdbg_writeln("functionsource", "file=\"%s\" line=\"%d\"", " in %s on line %d", + op_array->filename, + op_array->line_start); + } else { + phpdbg_writeln("functionsource", "", " (no source code)"); + } + } + + zend_hash_destroy(&functions); + + return SUCCESS; +} /* }}} */ |