Run child process with ASAN_OPTIONS=verify_asan_link_order=0.

libasan.so checks if it is the first loaded shared library
and exists if not.

In some tests rr records another rr process which gets then
as first library librrpage.so.

Visible in tests:
ignore_nested nested_detach nested_detach_kill nested_detach_wait

==1913200==ASan runtime does not come first in initial library list; you should either link runtime to your application or manually preload it with LD_PRELOAD.

src/RecordSession.cc

@@ -2225,6 +2225,10 @@ static string lookup_by_path(const string& name) {
     env.push_back("SYSTEMD_RDRAND=0");
   }
 
+#if defined(__SANITIZE_ADDRESS__)
+  env.push_back("ASAN_OPTIONS=verify_asan_link_order=0");
+#endif
+
   shr_ptr session(
       new RecordSession(full_path, argv, env, disable_cpuid_features,
                         syscallbuf, syscallbuf_desched_sig, bind_cpu,

src/test/ignore_nested.c

@@ -5,11 +5,17 @@
 // environment. The runner uses this to test
 // --nested=ignore in the absence of RR_UNDER_RR
 // environment variable.
-int main(int argc, char *argv[]) {
+int main(int argc, char *argv[], char *envp[]) {
     if (argc > 1 && strcmp(argv[1], "--inner") == 0) {
         atomic_puts("EXIT-SUCCESS");
         return 0;
     }
-    char *newenv[] = { NULL };
+    char *newenv[2] = {};
+    for (int i = 0; envp[i] != NULL; i++) {
+        if (strncmp(envp[i], "ASAN_OPTIONS=", 13) == 0) {
+            newenv[0] = envp[i];
+            break;
+        }
+    }
     return execve(argv[1], &argv[1], newenv);
 }