LXR linux/tools/testing/selftests/bpf/prog

   1// SPDX-License-Identifier: GPL-2.0
   2/* Copyright (c) 2020 Facebook */
   3
   4#include <test_progs.h>
   5#include "test_endian.skel.h"
   6
   7static int duration;
   8
   9#define IN16 0x1234
  10#define IN32 0x12345678U
  11#define IN64 0x123456789abcdef0ULL
  12
  13#define OUT16 0x3412
  14#define OUT32 0x78563412U
  15#define OUT64 0xf0debc9a78563412ULL
  16
  17void test_endian(void)
  18{
  19        struct test_endian* skel;
  20        struct test_endian__bss *bss;
  21        int err;
  22
  23        skel = test_endian__open_and_load();
  24        if (CHECK(!skel, "skel_open", "failed to open skeleton\n"))
  25                return;
  26        bss = skel->bss;
  27
  28        bss->in16 = IN16;
  29        bss->in32 = IN32;
  30        bss->in64 = IN64;
  31
  32        err = test_endian__attach(skel);
  33        if (CHECK(err, "skel_attach", "skeleton attach failed: %d\n", err))
  34                goto cleanup;
  35
  36        usleep(1);
  37
  38        CHECK(bss->out16 != OUT16, "out16", "got 0x%llx != exp 0x%llx\n",
  39              (__u64)bss->out16, (__u64)OUT16);
  40        CHECK(bss->out32 != OUT32, "out32", "got 0x%llx != exp 0x%llx\n",
  41              (__u64)bss->out32, (__u64)OUT32);
  42        CHECK(bss->out64 != OUT64, "out16", "got 0x%llx != exp 0x%llx\n",
  43              (__u64)bss->out64, (__u64)OUT64);
  44
  45        CHECK(bss->const16 != OUT16, "const16", "got 0x%llx != exp 0x%llx\n",
  46              (__u64)bss->const16, (__u64)OUT16);
  47        CHECK(bss->const32 != OUT32, "const32", "got 0x%llx != exp 0x%llx\n",
  48              (__u64)bss->const32, (__u64)OUT32);
  49        CHECK(bss->const64 != OUT64, "const64", "got 0x%llx != exp 0x%llx\n",
  50              (__u64)bss->const64, (__u64)OUT64);
  51cleanup:
  52        test_endian__destroy(skel);
  53}
  54