root/tools/perf/tests/workloads/traploop.c
// SPDX-License-Identifier: GPL-2.0
#include <stdlib.h>
#include "../tests.h"

#define BENCH_RUNS 999999

#ifdef __aarch64__
static void trap_bench(void)
{
        unsigned long val;

        asm("mrs %0, ID_AA64ISAR0_EL1" : "=r" (val));   /* TRAP + ERET */
}
#else
static void trap_bench(void) { }
#endif

static int traploop(int argc, const char **argv)
{
        int num_loops = BENCH_RUNS;

        if (argc > 0)
                num_loops = atoi(argv[0]);

        for (int i = 0; i < num_loops; i++)
                trap_bench();

        return 0;
}

DEFINE_WORKLOAD(traploop);