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// MSAN re-execs on unlimited stacks. We use that to verify ReExec() uses the
// right path.
// RUN: %clangxx_msan -O0 %s -o %t && ulimit -s unlimited && %run %t | FileCheck %s
#include <stdio.h>
#if !defined(__GLIBC_PREREQ)
#define __GLIBC_PREREQ(a, b) 0
#endif
#if __GLIBC_PREREQ(2, 16)
#include <sys/auxv.h>
#endif
int main() {
#if __GLIBC_PREREQ(2, 16)
// Make sure AT_EXECFN didn't get overwritten by re-exec.
puts(reinterpret_cast<const char *>(getauxval(AT_EXECFN)));
#else
puts("No getauxval");
#endif
// CHECK-NOT: /proc/self/exe
}
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