1 /*
2 +----------------------------------------------------------------------+
3 | Zend Engine |
4 +----------------------------------------------------------------------+
5 | Copyright (c) Zend Technologies Ltd. (http://www.zend.com) |
6 +----------------------------------------------------------------------+
7 | This source file is subject to version 2.00 of the Zend license, |
8 | that is bundled with this package in the file LICENSE, and is |
9 | available through the world-wide-web at the following url: |
10 | http://www.zend.com/license/2_00.txt. |
11 | If you did not receive a copy of the Zend license and are unable to |
12 | obtain it through the world-wide-web, please send a note to |
13 | license@zend.com so we can mail you a copy immediately. |
14 +----------------------------------------------------------------------+
15 | Authors: Dmitry Stogov <dmitry@php.net> |
16 +----------------------------------------------------------------------+
17 */
18
19 #include "zend_vm_handlers.h"
20 #include "zend_sort.h"
21
22 #define GEN_MAP(n, name) do { \
23 ZVAL_LONG(&tmp, (zend_long)(uintptr_t)zend_opcode_handlers[n]); \
24 zend_hash_str_add(&vm_trace_ht, #name, sizeof(#name) - 1, &tmp); \
25 } while (0);
26
27 #define VM_TRACE_START() do { \
28 zval tmp; \
29 zend_hash_init(&vm_trace_ht, 0, NULL, NULL, 1); \
30 VM_HANDLERS(GEN_MAP) \
31 zend_vm_trace_init(); \
32 } while (0)
33
34 #ifdef _WIN64
35 # define ADDR_FMT "%016I64x"
36 #elif SIZEOF_SIZE_T == 4
37 # define ADDR_FMT "%08zx"
38 #elif SIZEOF_SIZE_T == 8
39 # define ADDR_FMT "%016zx"
40 #else
41 # error "Unknown SIZEOF_SIZE_T"
42 #endif
43
44 static HashTable vm_trace_ht;
45
zend_vm_trace_compare(const Bucket * p1,const Bucket * p2)46 static int zend_vm_trace_compare(const Bucket *p1, const Bucket *p2)
47 {
48 if (Z_LVAL(p1->val) > Z_LVAL(p2->val)) {
49 return 1;
50 } else if (Z_LVAL(p1->val) < Z_LVAL(p2->val)) {
51 return -1;
52 } else {
53 return 0;
54 }
55 }
56
zend_vm_trace_init(void)57 static void zend_vm_trace_init(void)
58 {
59 FILE *f;
60 zend_string *key, *prev_key;
61 zval *val;
62 zend_long prev_addr;
63
64 f = fopen("zend_vm.map", "w+");
65 if (f) {
66 zend_hash_sort(&vm_trace_ht, (bucket_compare_func_t)zend_vm_trace_compare, 0);
67 prev_key = NULL;
68 ZEND_HASH_MAP_FOREACH_STR_KEY_VAL(&vm_trace_ht, key, val) {
69 if (prev_key) {
70 fprintf(f, ADDR_FMT" "ADDR_FMT" t %s\n", prev_addr, Z_LVAL_P(val) - prev_addr, ZSTR_VAL(prev_key));
71 }
72 prev_key = key;
73 prev_addr = Z_LVAL_P(val);
74 } ZEND_HASH_FOREACH_END();
75 if (prev_key) {
76 fprintf(f, ADDR_FMT" "ADDR_FMT" t %s\n", prev_addr, 0, ZSTR_VAL(prev_key));
77 }
78 fclose(f);
79 }
80 zend_hash_destroy(&vm_trace_ht);
81 }
82
