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편집 파일: zend_vm_trace_handlers.h

/* +----------------------------------------------------------------------+ | Zend Engine | +----------------------------------------------------------------------+ | Copyright (c) 1998-2018 Zend Technologies Ltd. (http://www.zend.com) | +----------------------------------------------------------------------+ | This source file is subject to version 2.00 of the Zend 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.zend.com/license/2_00.txt. | | If you did not receive a copy of the Zend license and are unable to | | obtain it through the world-wide-web, please send a note to | | license@zend.com so we can mail you a copy immediately. | +----------------------------------------------------------------------+ | Authors: Dmitry Stogov <dmitry@php.net> | +----------------------------------------------------------------------+ */ #include "zend_sort.h" #define VM_TRACE(op) zend_vm_trace(#op, sizeof(#op)-1); #define VM_TRACE_START() zend_vm_trace_init(); #define VM_TRACE_END() zend_vm_trace_finish(); static HashTable vm_trace_ht; static void zend_vm_trace(const char *op, size_t op_len) { static const char *last = NULL; static size_t last_len = 0; char buf[256]; size_t len; zval tmp, *zv; if (EXPECTED(last)) { len = last_len + 1 + op_len; memcpy(buf, last, last_len); buf[last_len] = ' '; memcpy(buf + last_len + 1, op, op_len + 1); zv = zend_hash_str_find(&vm_trace_ht, buf, len); if (EXPECTED(zv)) { if (EXPECTED(Z_LVAL_P(zv) < ZEND_LONG_MAX)) { Z_LVAL_P(zv)++; } } else { ZVAL_LONG(&tmp, 1); zend_hash_str_add_new(&vm_trace_ht, buf, len, &tmp); } } last = op; last_len = op_len; } static int zend_vm_trace_compare(const Bucket *p1, const Bucket *p2) { if (Z_LVAL(p1->val) < Z_LVAL(p2->val)) { return 1; } else if (Z_LVAL(p1->val) > Z_LVAL(p2->val)) { return -1; } else { return 0; } } static void zend_vm_trace_finish(void) { zend_string *key; zval *val; FILE *f; f = fopen("zend_vm_trace.log", "w+"); if (f) { zend_hash_sort(&vm_trace_ht, (compare_func_t)zend_vm_trace_compare, 0); ZEND_HASH_FOREACH_STR_KEY_VAL(&vm_trace_ht, key, val) { fprintf(f, "%s "ZEND_LONG_FMT"\n", ZSTR_VAL(key), Z_LVAL_P(val)); } ZEND_HASH_FOREACH_END(); fclose(f); } zend_hash_destroy(&vm_trace_ht); } static void zend_vm_trace_init(void) { FILE *f; zend_hash_init(&vm_trace_ht, 0, NULL, NULL, 1); f = fopen("zend_vm_trace.log", "r"); if (f) { char buf[256]; size_t len; zval tmp; while (!feof(f)) { if (fgets(buf, sizeof(buf)-1, f)) { len = strlen(buf); while (len > 0 && buf[len-1] <= ' ') { len--; buf[len] = 0; } while (len > 0 && buf[len-1] >= '0' && buf[len-1] <= '9') { len--; } if (len > 1) { buf[len-1] = 0; ZVAL_LONG(&tmp, ZEND_STRTOL(buf + len, NULL, 10)); zend_hash_str_add(&vm_trace_ht, buf, len - 1, &tmp); } } } fclose(f); } }