/* DF-5721 probe 1: user-mode int3 must be a plain SIGTRAP, never DDB. */
#include <stdio.h>
#include <unistd.h>
int main(void)
{
	printf("int3: about to execute 0xcc in user mode\n");
	fflush(stdout);
	__asm__ __volatile__("int3");
	/* not reached if SIGTRAP kills us (shell prints 'Trace/BPT trap') */
	printf("int3: NO SIGNAL (unexpected)\n");
	fflush(stdout);
	return 1;
}