recover-dso.cpp
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// RUN: %clangxx_msan -O0 %s -o %t && not %run %t >%t.out 2>&1
// FileCheck --check-prefix=CHECK-RECOVER %s <%t.out
// RUN: %clangxx_msan -O0 %s -o %t && MSAN_OPTIONS=keep_going=0 not %run %t >%t.out 2>&1
// FileCheck %s <%t.out
// RUN: %clangxx_msan -O0 %s -o %t && MSAN_OPTIONS=keep_going=1 not %run %t >%t.out 2>&1
// FileCheck --check-prefix=CHECK-RECOVER %s <%t.out
// Test how -fsanitize-recover=memory and MSAN_OPTIONS=keep_going affect reports
// from interceptors.
// -fsanitize-recover=memory provides the default value of keep_going flag, but is
// always overwritten by MSAN_OPTIONS
// RUN: %clangxx_msan -fsanitize-recover=memory -O0 %s -o %t && not %run %t >%t.out 2>&1
// FileCheck --check-prefix=CHECK-RECOVER %s <%t.out
// RUN: %clangxx_msan -fsanitize-recover=memory -O0 %s -o %t && MSAN_OPTIONS=keep_going=0 not %run %t >%t.out 2>&1
// FileCheck %s <%t.out
// RUN: %clangxx_msan -fsanitize-recover=memory -O0 %s -o %t && MSAN_OPTIONS=keep_going=1 not %run %t >%t.out 2>&1
// FileCheck --check-prefix=CHECK-RECOVER %s <%t.out
// Test how legacy -mllvm -msan-keep-going and MSAN_OPTIONS=keep_going affect
// reports from interceptors.
// RUN: %clangxx_msan -mllvm -msan-keep-going=1 -O0 %s -o %t && not %run %t >%t.out 2>&1
// FileCheck --check-prefix=CHECK-RECOVER %s <%t.out
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int main(int argc, char **argv) {
char *volatile x = (char*)malloc(5 * sizeof(char));
x[4] = 0;
if (strlen(x) < 3)
exit(0);
fprintf(stderr, "Done\n");
// CHECK-NOT: Done
// CHECK-RECOVER: Done
return 0;
}