blob: 3850e05461a5d574252589d4e366bd6c7e210906 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
- add another way to determine if the process is run under valgrind - based on LD_PRELOAD patterns presence
- Submitted: https://github.com/gperftools/gperftools/pull/1316
--- src/base/dynamic_annotations.c.orig 2021-02-15 06:44:21 UTC
+++ src/base/dynamic_annotations.c
@@ -43,6 +43,21 @@
#include "base/dynamic_annotations.h"
#include "getenv_safe.h" // for TCMallocGetenvSafe
+static int running_on_valgrind_preload = -1;
+void __attribute__ ((constructor)) premain() {
+ char *LD_PRELOAD = getenv("LD_PRELOAD");
+ if (LD_PRELOAD == NULL)
+ LD_PRELOAD = getenv("LD_32_PRELOAD");
+ running_on_valgrind_preload = LD_PRELOAD != NULL &&
+ (
+ strstr(LD_PRELOAD, "/valgrind/") != NULL
+ ||
+ strstr(LD_PRELOAD, "/vgpreload") != NULL
+ )
+ ?
+ 1 : 0;
+}
+
static int GetRunningOnValgrind(void) {
#ifdef RUNNING_ON_VALGRIND
if (RUNNING_ON_VALGRIND) return 1;
@@ -51,6 +66,11 @@ static int GetRunningOnValgrind(void) {
if (running_on_valgrind_str) {
return strcmp(running_on_valgrind_str, "0") != 0;
}
+
+ // use the LD_PRELOAD trick from https://stackoverflow.com/questions/365458/how-can-i-detect-if-a-program-is-running-from-within-valgrind
+ if (running_on_valgrind_preload == 1)
+ return 1;
+
return 0;
}
|
