compiler-rt/test/msan/recover.cpp

   1 // RUN: %clangxx_msan -O0 %s -o %t && not %run %t >%t.out 2>&1
   2 // FileCheck %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 %s <%t.out
   7
   8 // Test behavior of -fsanitize-recover=memory and MSAN_OPTIONS=keep_going.
   9 // -fsanitize-recover=memory provides the default value of keep_going flag; value
  10 // of 1 can be overwritten by MSAN_OPTIONS, value of 0 can not.
  11
  12 // RUN: %clangxx_msan -fsanitize-recover=memory -O0 %s -o %t && not %run %t >%t.out 2>&1
  13 // FileCheck --check-prefix=CHECK-RECOVER %s <%t.out
  14 // RUN: %clangxx_msan -fsanitize-recover=memory -O0 %s -o %t && MSAN_OPTIONS=keep_going=0 not %run %t >%t.out 2>&1
  15 // FileCheck %s <%t.out
  16 // RUN: %clangxx_msan -fsanitize-recover=memory -O0 %s -o %t && MSAN_OPTIONS=keep_going=1 not %run %t >%t.out 2>&1
  17 // FileCheck --check-prefix=CHECK-RECOVER %s <%t.out
  18 // RUN: %clangxx_msan -fsanitize-recover=memory -O0 %s -o %t && MSAN_OPTIONS=halt_on_error=1 not %run %t >%t.out 2>&1
  19 // FileCheck %s <%t.out
  20 // RUN: %clangxx_msan -fsanitize-recover=memory -O0 %s -o %t && MSAN_OPTIONS=halt_on_error=0 not %run %t >%t.out 2>&1
  21 // FileCheck --check-prefix=CHECK-RECOVER %s <%t.out
  22
  23 // Basic test of legacy -mllvm -msan-keep-going and MSAN_OPTIONS=keep_going.
  24
  25 // RUN: %clangxx_msan -mllvm -msan-keep-going=1 -O0 %s -o %t && not %run %t >%t.out 2>&1
  26 // FileCheck --check-prefix=CHECK-RECOVER %s <%t.out
  27 // RUN: %clangxx_msan -mllvm -msan-keep-going=1 -O0 %s -o %t && MSAN_OPTIONS=keep_going=0 not %run %t >%t.out 2>&1
  28 // FileCheck %s <%t.out
  29
  30 #include <stdio.h>
  31 #include <stdlib.h>
  32
  33 int main(int argc, char **argv) {
  34   char *volatile x = (char*)malloc(5 * sizeof(char));
  35   if (x[0])
  36     exit(0);
  37   fprintf(stderr, "Done\n");
  38   // CHECK-NOT: Done
  39   // CHECK-RECOVER: Done
  40   return 0;
  41 }