death-callback.cpp
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// RUN: %clangxx_msan -DERROR %s -o %t && not %run %t 2>&1 | \
// RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-NOCB
// RUN: %clangxx_msan -DERROR -DMSANCB_SET %s -o %t && not %run %t 2>&1 | \
// RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-CB
// RUN: %clangxx_msan -DERROR -DMSANCB_SET -DMSANCB_CLEAR %s -o %t && not %run %t 2>&1 | \
// RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-NOCB
// RUN: %clangxx_msan -DMSANCB_SET %s -o %t && %run %t 2>&1 | \
// RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-NOCB
#include <sanitizer/msan_interface.h>
#include <stdio.h>
#include <stdlib.h>
void cb(void) {
fprintf(stderr, "msan-death-callback\n");
}
int main(int argc, char **argv) {
int *volatile p = (int *)malloc(sizeof(int));
*p = 42;
free(p);
#ifdef MSANCB_SET
__msan_set_death_callback(cb);
#endif
#ifdef MSANCB_CLEAR
__msan_set_death_callback(0);
#endif
#ifdef ERROR
if (*p)
exit(0);
#endif
// CHECK-CB: msan-death-callback
// CHECK-NOCB-NOT: msan-death-callback
fprintf(stderr, "done\n");
return 0;
}