tests/test_skel.h

/* Copyright 2018, Google Inc.  All rights reserved.
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 * modification, are permitted provided that the following conditions are
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 *
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 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
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 * contributors may be used to endorse or promote products derived from
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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/*
 * Make sure it's defined before including anything else.  A number of syscalls
 * are GNU extensions and rely on being exported by glibc.
 */
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif

/*
 * Make sure the assert checks aren't removed as all the unittests are based
 * on them.
 */
#undef NDEBUG

#include <assert.h>
#include <fcntl.h>
#include <sched.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
#include <sys/prctl.h>
#include <sys/stat.h>
#include <sys/vfs.h>
#include <sys/wait.h>

#include <linux/capability.h>

#include "linux_syscall_support.h"

#define SKIP_TEST_EXIT_STATUS 77

void assert_buffers_eq_len(const void *buf1, const void *buf2, size_t len) {
  const uint8_t *u8_1 = (const uint8_t *)buf1;
  const uint8_t *u8_2 = (const uint8_t *)buf2;
  size_t i;

  for (i = 0; i < len; ++i) {
    if (u8_1[i] != u8_2[i])
      printf("offset %zu: %02x != %02x\n", i, u8_1[i], u8_2[i]);
  }
}
#define assert_buffers_eq(obj1, obj2) assert_buffers_eq_len(obj1, obj2, sizeof(*obj1))