root/tools/perf/tests/bitmap.c

DEFINITIONS

1. get_bitmap
2. test_bitmap
3. test__bitmap_print

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <linux/compiler.h>
   3 #include <linux/bitmap.h>
   4 #include <perf/cpumap.h>
   5 #include <internal/cpumap.h>
   6 #include "tests.h"
   7 #include "debug.h"
   8 
   9 #define NBITS 100
  10 
  11 static unsigned long *get_bitmap(const char *str, int nbits)
  12 {
  13         struct perf_cpu_map *map = perf_cpu_map__new(str);
  14         unsigned long *bm = NULL;
  15         int i;
  16 
  17         bm = bitmap_alloc(nbits);
  18 
  19         if (map && bm) {
  20                 for (i = 0; i < map->nr; i++)
  21                         set_bit(map->map[i], bm);
  22         }
  23 
  24         if (map)
  25                 perf_cpu_map__put(map);
  26         return bm;
  27 }
  28 
  29 static int test_bitmap(const char *str)
  30 {
  31         unsigned long *bm = get_bitmap(str, NBITS);
  32         char buf[100];
  33         int ret;
  34 
  35         bitmap_scnprintf(bm, NBITS, buf, sizeof(buf));
  36         pr_debug("bitmap: %s\n", buf);
  37 
  38         ret = !strcmp(buf, str);
  39         free(bm);
  40         return ret;
  41 }
  42 
  43 int test__bitmap_print(struct test *test __maybe_unused, int subtest __maybe_unused)
  44 {
  45         TEST_ASSERT_VAL("failed to convert map", test_bitmap("1"));
  46         TEST_ASSERT_VAL("failed to convert map", test_bitmap("1,5"));
  47         TEST_ASSERT_VAL("failed to convert map", test_bitmap("1,3,5,7,9,11,13,15,17,19,21-40"));
  48         TEST_ASSERT_VAL("failed to convert map", test_bitmap("2-5"));
  49         TEST_ASSERT_VAL("failed to convert map", test_bitmap("1,3-6,8-10,24,35-37"));
  50         TEST_ASSERT_VAL("failed to convert map", test_bitmap("1,3-6,8-10,24,35-37"));
  51         TEST_ASSERT_VAL("failed to convert map", test_bitmap("1-10,12-20,22-30,32-40"));
  52         return 0;
  53 }