src/compiler-rt/test/msan/keep-going-dso.cc

   1 // RUN: %clangxx_msan -O0 %s -o %t && not %run %t >%t.out 2>&1
   2 // FileCheck --check-prefix=CHECK-KEEP-GOING %s <%t.out
   3 // RUN: %clangxx_msan -O0 %s -o %t && MSAN_OPTIONS=keep_going=0 not %run %t >%t.out 2>&1
   4 // FileCheck %s <%t.out
   5 // RUN: %clangxx_msan -O0 %s -o %t && MSAN_OPTIONS=keep_going=1 not %run %t >%t.out 2>&1
   6 // FileCheck --check-prefix=CHECK-KEEP-GOING %s <%t.out
   7
   8 // RUN: %clangxx_msan -mllvm -msan-keep-going=1 -O0 %s -o %t && not %run %t >%t.out 2>&1
   9 // FileCheck --check-prefix=CHECK-KEEP-GOING %s <%t.out
  10 // RUN: %clangxx_msan -mllvm -msan-keep-going=1 -O0 %s -o %t && MSAN_OPTIONS=keep_going=0 not %run %t >%t.out 2>&1
  11 // FileCheck %s <%t.out
  12 // RUN: %clangxx_msan -mllvm -msan-keep-going=1 -O0 %s -o %t && MSAN_OPTIONS=keep_going=1 not %run %t >%t.out 2>&1
  13 // FileCheck --check-prefix=CHECK-KEEP-GOING %s <%t.out
  14
  15 // Test how -mllvm -msan-keep-going and MSAN_OPTIONS=keep_going affect reports
  16 // from interceptors.
  17 // -mllvm -msan-keep-going provides the default value of keep_going flag, but is
  18 // always overwritten by MSAN_OPTIONS
  19
  20 #include <stdio.h>
  21 #include <stdlib.h>
  22 #include <string.h>
  23
  24 int main(int argc, char **argv) {
  25   char *volatile x = (char*)malloc(5 * sizeof(char));
  26   x[4] = 0;
  27   if (strlen(x) < 3)
  28     exit(0);
  29   fprintf(stderr, "Done\n");
  30   // CHECK-NOT: Done
  31   // CHECK-KEEP-GOING: Done
  32   return 0;
  33 }