| // RUN: %clangxx -O2 %s -o %t && %run %t 2>&1 | FileCheck %s |
| |
| #include <stdio.h> |
| |
| #if !defined(__GLIBC_PREREQ) |
| #define __GLIBC_PREREQ(a, b) 0 |
| #endif |
| |
| // getauxval() used instead of sysconf() in GetPageSize() is defined starting |
| // glbc version 2.16. |
| // Does not work with 2.31 and above at it calls sysconf for SIGSTKSZ. |
| #if __GLIBC_PREREQ(2, 16) && !__GLIBC_PREREQ(2, 31) |
| extern "C" long sysconf(int name) { |
| fprintf(stderr, "sysconf wrapper called: %d\n", name); |
| return 0; |
| } |
| #endif |
| |
| int main() { |
| // All we need to check is that the sysconf() interceptor defined above was |
| // not called. Should it get called, it will crash right there, any |
| // instrumented code executed before sanitizer init is finished will crash |
| // accessing non-initialized sanitizer internals. Even if it will not crash |
| // in some configuration, it should never be called anyway. |
| fprintf(stderr, "Passed\n"); |
| // CHECK-NOT: sysconf wrapper called |
| // CHECK: Passed |
| // CHECK-NOT: sysconf wrapper called |
| return 0; |
| } |
