mirror of
https://github.com/torvalds/linux.git
synced 2024-11-24 13:11:40 +00:00
09c434b8a0
Add SPDX license identifiers to all files which:
- Have no license information of any form
- Have MODULE_LICENCE("GPL*") inside which was used in the initial
scan/conversion to ignore the file
These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:
GPL-2.0-only
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
421 lines
11 KiB
C
421 lines
11 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* Test cases for printf facility.
|
|
*/
|
|
|
|
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
|
|
|
|
#include <linux/bitmap.h>
|
|
#include <linux/init.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/printk.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/string.h>
|
|
#include <linux/uaccess.h>
|
|
|
|
#include "../tools/testing/selftests/kselftest_module.h"
|
|
|
|
static unsigned total_tests __initdata;
|
|
static unsigned failed_tests __initdata;
|
|
|
|
static char pbl_buffer[PAGE_SIZE] __initdata;
|
|
|
|
|
|
static bool __init
|
|
__check_eq_uint(const char *srcfile, unsigned int line,
|
|
const unsigned int exp_uint, unsigned int x)
|
|
{
|
|
if (exp_uint != x) {
|
|
pr_err("[%s:%u] expected %u, got %u\n",
|
|
srcfile, line, exp_uint, x);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
static bool __init
|
|
__check_eq_bitmap(const char *srcfile, unsigned int line,
|
|
const unsigned long *exp_bmap, const unsigned long *bmap,
|
|
unsigned int nbits)
|
|
{
|
|
if (!bitmap_equal(exp_bmap, bmap, nbits)) {
|
|
pr_warn("[%s:%u] bitmaps contents differ: expected \"%*pbl\", got \"%*pbl\"\n",
|
|
srcfile, line,
|
|
nbits, exp_bmap, nbits, bmap);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static bool __init
|
|
__check_eq_pbl(const char *srcfile, unsigned int line,
|
|
const char *expected_pbl,
|
|
const unsigned long *bitmap, unsigned int nbits)
|
|
{
|
|
snprintf(pbl_buffer, sizeof(pbl_buffer), "%*pbl", nbits, bitmap);
|
|
if (strcmp(expected_pbl, pbl_buffer)) {
|
|
pr_warn("[%s:%u] expected \"%s\", got \"%s\"\n",
|
|
srcfile, line,
|
|
expected_pbl, pbl_buffer);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static bool __init
|
|
__check_eq_u32_array(const char *srcfile, unsigned int line,
|
|
const u32 *exp_arr, unsigned int exp_len,
|
|
const u32 *arr, unsigned int len) __used;
|
|
static bool __init
|
|
__check_eq_u32_array(const char *srcfile, unsigned int line,
|
|
const u32 *exp_arr, unsigned int exp_len,
|
|
const u32 *arr, unsigned int len)
|
|
{
|
|
if (exp_len != len) {
|
|
pr_warn("[%s:%u] array length differ: expected %u, got %u\n",
|
|
srcfile, line,
|
|
exp_len, len);
|
|
return false;
|
|
}
|
|
|
|
if (memcmp(exp_arr, arr, len*sizeof(*arr))) {
|
|
pr_warn("[%s:%u] array contents differ\n", srcfile, line);
|
|
print_hex_dump(KERN_WARNING, " exp: ", DUMP_PREFIX_OFFSET,
|
|
32, 4, exp_arr, exp_len*sizeof(*exp_arr), false);
|
|
print_hex_dump(KERN_WARNING, " got: ", DUMP_PREFIX_OFFSET,
|
|
32, 4, arr, len*sizeof(*arr), false);
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
#define __expect_eq(suffix, ...) \
|
|
({ \
|
|
int result = 0; \
|
|
total_tests++; \
|
|
if (!__check_eq_ ## suffix(__FILE__, __LINE__, \
|
|
##__VA_ARGS__)) { \
|
|
failed_tests++; \
|
|
result = 1; \
|
|
} \
|
|
result; \
|
|
})
|
|
|
|
#define expect_eq_uint(...) __expect_eq(uint, ##__VA_ARGS__)
|
|
#define expect_eq_bitmap(...) __expect_eq(bitmap, ##__VA_ARGS__)
|
|
#define expect_eq_pbl(...) __expect_eq(pbl, ##__VA_ARGS__)
|
|
#define expect_eq_u32_array(...) __expect_eq(u32_array, ##__VA_ARGS__)
|
|
|
|
static void __init test_zero_clear(void)
|
|
{
|
|
DECLARE_BITMAP(bmap, 1024);
|
|
|
|
/* Known way to set all bits */
|
|
memset(bmap, 0xff, 128);
|
|
|
|
expect_eq_pbl("0-22", bmap, 23);
|
|
expect_eq_pbl("0-1023", bmap, 1024);
|
|
|
|
/* single-word bitmaps */
|
|
bitmap_clear(bmap, 0, 9);
|
|
expect_eq_pbl("9-1023", bmap, 1024);
|
|
|
|
bitmap_zero(bmap, 35);
|
|
expect_eq_pbl("64-1023", bmap, 1024);
|
|
|
|
/* cross boundaries operations */
|
|
bitmap_clear(bmap, 79, 19);
|
|
expect_eq_pbl("64-78,98-1023", bmap, 1024);
|
|
|
|
bitmap_zero(bmap, 115);
|
|
expect_eq_pbl("128-1023", bmap, 1024);
|
|
|
|
/* Zeroing entire area */
|
|
bitmap_zero(bmap, 1024);
|
|
expect_eq_pbl("", bmap, 1024);
|
|
}
|
|
|
|
static void __init test_fill_set(void)
|
|
{
|
|
DECLARE_BITMAP(bmap, 1024);
|
|
|
|
/* Known way to clear all bits */
|
|
memset(bmap, 0x00, 128);
|
|
|
|
expect_eq_pbl("", bmap, 23);
|
|
expect_eq_pbl("", bmap, 1024);
|
|
|
|
/* single-word bitmaps */
|
|
bitmap_set(bmap, 0, 9);
|
|
expect_eq_pbl("0-8", bmap, 1024);
|
|
|
|
bitmap_fill(bmap, 35);
|
|
expect_eq_pbl("0-63", bmap, 1024);
|
|
|
|
/* cross boundaries operations */
|
|
bitmap_set(bmap, 79, 19);
|
|
expect_eq_pbl("0-63,79-97", bmap, 1024);
|
|
|
|
bitmap_fill(bmap, 115);
|
|
expect_eq_pbl("0-127", bmap, 1024);
|
|
|
|
/* Zeroing entire area */
|
|
bitmap_fill(bmap, 1024);
|
|
expect_eq_pbl("0-1023", bmap, 1024);
|
|
}
|
|
|
|
static void __init test_copy(void)
|
|
{
|
|
DECLARE_BITMAP(bmap1, 1024);
|
|
DECLARE_BITMAP(bmap2, 1024);
|
|
|
|
bitmap_zero(bmap1, 1024);
|
|
bitmap_zero(bmap2, 1024);
|
|
|
|
/* single-word bitmaps */
|
|
bitmap_set(bmap1, 0, 19);
|
|
bitmap_copy(bmap2, bmap1, 23);
|
|
expect_eq_pbl("0-18", bmap2, 1024);
|
|
|
|
bitmap_set(bmap2, 0, 23);
|
|
bitmap_copy(bmap2, bmap1, 23);
|
|
expect_eq_pbl("0-18", bmap2, 1024);
|
|
|
|
/* multi-word bitmaps */
|
|
bitmap_set(bmap1, 0, 109);
|
|
bitmap_copy(bmap2, bmap1, 1024);
|
|
expect_eq_pbl("0-108", bmap2, 1024);
|
|
|
|
bitmap_fill(bmap2, 1024);
|
|
bitmap_copy(bmap2, bmap1, 1024);
|
|
expect_eq_pbl("0-108", bmap2, 1024);
|
|
|
|
/* the following tests assume a 32- or 64-bit arch (even 128b
|
|
* if we care)
|
|
*/
|
|
|
|
bitmap_fill(bmap2, 1024);
|
|
bitmap_copy(bmap2, bmap1, 109); /* ... but 0-padded til word length */
|
|
expect_eq_pbl("0-108,128-1023", bmap2, 1024);
|
|
|
|
bitmap_fill(bmap2, 1024);
|
|
bitmap_copy(bmap2, bmap1, 97); /* ... but aligned on word length */
|
|
expect_eq_pbl("0-108,128-1023", bmap2, 1024);
|
|
}
|
|
|
|
#define PARSE_TIME 0x1
|
|
|
|
struct test_bitmap_parselist{
|
|
const int errno;
|
|
const char *in;
|
|
const unsigned long *expected;
|
|
const int nbits;
|
|
const int flags;
|
|
};
|
|
|
|
static const unsigned long exp[] __initconst = {
|
|
BITMAP_FROM_U64(1),
|
|
BITMAP_FROM_U64(2),
|
|
BITMAP_FROM_U64(0x0000ffff),
|
|
BITMAP_FROM_U64(0xffff0000),
|
|
BITMAP_FROM_U64(0x55555555),
|
|
BITMAP_FROM_U64(0xaaaaaaaa),
|
|
BITMAP_FROM_U64(0x11111111),
|
|
BITMAP_FROM_U64(0x22222222),
|
|
BITMAP_FROM_U64(0xffffffff),
|
|
BITMAP_FROM_U64(0xfffffffe),
|
|
BITMAP_FROM_U64(0x3333333311111111ULL),
|
|
BITMAP_FROM_U64(0xffffffff77777777ULL),
|
|
BITMAP_FROM_U64(0),
|
|
};
|
|
|
|
static const unsigned long exp2[] __initconst = {
|
|
BITMAP_FROM_U64(0x3333333311111111ULL),
|
|
BITMAP_FROM_U64(0xffffffff77777777ULL)
|
|
};
|
|
|
|
static const struct test_bitmap_parselist parselist_tests[] __initconst = {
|
|
#define step (sizeof(u64) / sizeof(unsigned long))
|
|
|
|
{0, "0", &exp[0], 8, 0},
|
|
{0, "1", &exp[1 * step], 8, 0},
|
|
{0, "0-15", &exp[2 * step], 32, 0},
|
|
{0, "16-31", &exp[3 * step], 32, 0},
|
|
{0, "0-31:1/2", &exp[4 * step], 32, 0},
|
|
{0, "1-31:1/2", &exp[5 * step], 32, 0},
|
|
{0, "0-31:1/4", &exp[6 * step], 32, 0},
|
|
{0, "1-31:1/4", &exp[7 * step], 32, 0},
|
|
{0, "0-31:4/4", &exp[8 * step], 32, 0},
|
|
{0, "1-31:4/4", &exp[9 * step], 32, 0},
|
|
{0, "0-31:1/4,32-63:2/4", &exp[10 * step], 64, 0},
|
|
{0, "0-31:3/4,32-63:4/4", &exp[11 * step], 64, 0},
|
|
{0, " ,, 0-31:3/4 ,, 32-63:4/4 ,, ", &exp[11 * step], 64, 0},
|
|
|
|
{0, "0-31:1/4,32-63:2/4,64-95:3/4,96-127:4/4", exp2, 128, 0},
|
|
|
|
{0, "0-2047:128/256", NULL, 2048, PARSE_TIME},
|
|
|
|
{0, "", &exp[12 * step], 8, 0},
|
|
{0, "\n", &exp[12 * step], 8, 0},
|
|
{0, ",, ,, , , ,", &exp[12 * step], 8, 0},
|
|
{0, " , ,, , , ", &exp[12 * step], 8, 0},
|
|
{0, " , ,, , , \n", &exp[12 * step], 8, 0},
|
|
|
|
{-EINVAL, "-1", NULL, 8, 0},
|
|
{-EINVAL, "-0", NULL, 8, 0},
|
|
{-EINVAL, "10-1", NULL, 8, 0},
|
|
{-EINVAL, "0-31:", NULL, 8, 0},
|
|
{-EINVAL, "0-31:0", NULL, 8, 0},
|
|
{-EINVAL, "0-31:0/", NULL, 8, 0},
|
|
{-EINVAL, "0-31:0/0", NULL, 8, 0},
|
|
{-EINVAL, "0-31:1/0", NULL, 8, 0},
|
|
{-EINVAL, "0-31:10/1", NULL, 8, 0},
|
|
{-EOVERFLOW, "0-98765432123456789:10/1", NULL, 8, 0},
|
|
|
|
{-EINVAL, "a-31", NULL, 8, 0},
|
|
{-EINVAL, "0-a1", NULL, 8, 0},
|
|
{-EINVAL, "a-31:10/1", NULL, 8, 0},
|
|
{-EINVAL, "0-31:a/1", NULL, 8, 0},
|
|
{-EINVAL, "0-\n", NULL, 8, 0},
|
|
};
|
|
|
|
static void __init __test_bitmap_parselist(int is_user)
|
|
{
|
|
int i;
|
|
int err;
|
|
ktime_t time;
|
|
DECLARE_BITMAP(bmap, 2048);
|
|
char *mode = is_user ? "_user" : "";
|
|
|
|
for (i = 0; i < ARRAY_SIZE(parselist_tests); i++) {
|
|
#define ptest parselist_tests[i]
|
|
|
|
if (is_user) {
|
|
mm_segment_t orig_fs = get_fs();
|
|
size_t len = strlen(ptest.in);
|
|
|
|
set_fs(KERNEL_DS);
|
|
time = ktime_get();
|
|
err = bitmap_parselist_user(ptest.in, len,
|
|
bmap, ptest.nbits);
|
|
time = ktime_get() - time;
|
|
set_fs(orig_fs);
|
|
} else {
|
|
time = ktime_get();
|
|
err = bitmap_parselist(ptest.in, bmap, ptest.nbits);
|
|
time = ktime_get() - time;
|
|
}
|
|
|
|
if (err != ptest.errno) {
|
|
pr_err("parselist%s: %d: input is %s, errno is %d, expected %d\n",
|
|
mode, i, ptest.in, err, ptest.errno);
|
|
continue;
|
|
}
|
|
|
|
if (!err && ptest.expected
|
|
&& !__bitmap_equal(bmap, ptest.expected, ptest.nbits)) {
|
|
pr_err("parselist%s: %d: input is %s, result is 0x%lx, expected 0x%lx\n",
|
|
mode, i, ptest.in, bmap[0],
|
|
*ptest.expected);
|
|
continue;
|
|
}
|
|
|
|
if (ptest.flags & PARSE_TIME)
|
|
pr_err("parselist%s: %d: input is '%s' OK, Time: %llu\n",
|
|
mode, i, ptest.in, time);
|
|
}
|
|
}
|
|
|
|
static void __init test_bitmap_parselist(void)
|
|
{
|
|
__test_bitmap_parselist(0);
|
|
}
|
|
|
|
static void __init test_bitmap_parselist_user(void)
|
|
{
|
|
__test_bitmap_parselist(1);
|
|
}
|
|
|
|
#define EXP_BYTES (sizeof(exp) * 8)
|
|
|
|
static void __init test_bitmap_arr32(void)
|
|
{
|
|
unsigned int nbits, next_bit;
|
|
u32 arr[sizeof(exp) / 4];
|
|
DECLARE_BITMAP(bmap2, EXP_BYTES);
|
|
|
|
memset(arr, 0xa5, sizeof(arr));
|
|
|
|
for (nbits = 0; nbits < EXP_BYTES; ++nbits) {
|
|
bitmap_to_arr32(arr, exp, nbits);
|
|
bitmap_from_arr32(bmap2, arr, nbits);
|
|
expect_eq_bitmap(bmap2, exp, nbits);
|
|
|
|
next_bit = find_next_bit(bmap2,
|
|
round_up(nbits, BITS_PER_LONG), nbits);
|
|
if (next_bit < round_up(nbits, BITS_PER_LONG))
|
|
pr_err("bitmap_copy_arr32(nbits == %d:"
|
|
" tail is not safely cleared: %d\n",
|
|
nbits, next_bit);
|
|
|
|
if (nbits < EXP_BYTES - 32)
|
|
expect_eq_uint(arr[DIV_ROUND_UP(nbits, 32)],
|
|
0xa5a5a5a5);
|
|
}
|
|
}
|
|
|
|
static void noinline __init test_mem_optimisations(void)
|
|
{
|
|
DECLARE_BITMAP(bmap1, 1024);
|
|
DECLARE_BITMAP(bmap2, 1024);
|
|
unsigned int start, nbits;
|
|
|
|
for (start = 0; start < 1024; start += 8) {
|
|
for (nbits = 0; nbits < 1024 - start; nbits += 8) {
|
|
memset(bmap1, 0x5a, sizeof(bmap1));
|
|
memset(bmap2, 0x5a, sizeof(bmap2));
|
|
|
|
bitmap_set(bmap1, start, nbits);
|
|
__bitmap_set(bmap2, start, nbits);
|
|
if (!bitmap_equal(bmap1, bmap2, 1024)) {
|
|
printk("set not equal %d %d\n", start, nbits);
|
|
failed_tests++;
|
|
}
|
|
if (!__bitmap_equal(bmap1, bmap2, 1024)) {
|
|
printk("set not __equal %d %d\n", start, nbits);
|
|
failed_tests++;
|
|
}
|
|
|
|
bitmap_clear(bmap1, start, nbits);
|
|
__bitmap_clear(bmap2, start, nbits);
|
|
if (!bitmap_equal(bmap1, bmap2, 1024)) {
|
|
printk("clear not equal %d %d\n", start, nbits);
|
|
failed_tests++;
|
|
}
|
|
if (!__bitmap_equal(bmap1, bmap2, 1024)) {
|
|
printk("clear not __equal %d %d\n", start,
|
|
nbits);
|
|
failed_tests++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void __init selftest(void)
|
|
{
|
|
test_zero_clear();
|
|
test_fill_set();
|
|
test_copy();
|
|
test_bitmap_arr32();
|
|
test_bitmap_parselist();
|
|
test_bitmap_parselist_user();
|
|
test_mem_optimisations();
|
|
}
|
|
|
|
KSTM_MODULE_LOADERS(test_bitmap);
|
|
MODULE_AUTHOR("david decotigny <david.decotigny@googlers.com>");
|
|
MODULE_LICENSE("GPL");
|