linux-imx

/*

 * Test cases for lib/hexdump.c module.

 */

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

​

#include <linux/init.h>

#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/random.h>

#include <linux/string.h>

​

static const unsigned char data_b[] = {

    '\xbe', '\x32', '\xdb', '\x7b', '\x0a', '\x18', '\x93', '\xb2', /* 00 - 07 */

    '\x70', '\xba', '\xc4', '\x24', '\x7d', '\x83', '\x34', '\x9b', /* 08 - 0f */

    '\xa6', '\x9c', '\x31', '\xad', '\x9c', '\x0f', '\xac', '\xe9', /* 10 - 17 */

    '\x4c', '\xd1', '\x19', '\x99', '\x43', '\xb1', '\xaf', '\x0c', /* 18 - 1f */

};

​

static const unsigned char data_a[] = ".2.{....p..$}.4...1.....L...C...";

​

static const char * const test_data_1[] __initconst = {

    "be", "32", "db", "7b", "0a", "18", "93", "b2",

    "70", "ba", "c4", "24", "7d", "83", "34", "9b",

    "a6", "9c", "31", "ad", "9c", "0f", "ac", "e9",

    "4c", "d1", "19", "99", "43", "b1", "af", "0c",

};

​

static const char * const test_data_2_le[] __initconst = {

    "32be", "7bdb", "180a", "b293",

    "ba70", "24c4", "837d", "9b34",

    "9ca6", "ad31", "0f9c", "e9ac",

    "d14c", "9919", "b143", "0caf",

};

​

static const char * const test_data_2_be[] __initconst = {

    "be32", "db7b", "0a18", "93b2",

    "70ba", "c424", "7d83", "349b",

    "a69c", "31ad", "9c0f", "ace9",

    "4cd1", "1999", "43b1", "af0c",

};

​

static const char * const test_data_4_le[] __initconst = {

    "7bdb32be", "b293180a", "24c4ba70", "9b34837d",

    "ad319ca6", "e9ac0f9c", "9919d14c", "0cafb143",

};

​

static const char * const test_data_4_be[] __initconst = {

    "be32db7b", "0a1893b2", "70bac424", "7d83349b",

    "a69c31ad", "9c0face9", "4cd11999", "43b1af0c",

};

​

static const char * const test_data_8_le[] __initconst = {

    "b293180a7bdb32be", "9b34837d24c4ba70",

    "e9ac0f9cad319ca6", "0cafb1439919d14c",

};

​

static const char * const test_data_8_be[] __initconst = {

    "be32db7b0a1893b2", "70bac4247d83349b",

    "a69c31ad9c0face9", "4cd1199943b1af0c",

};

​

#define FILL_CHAR   '#'

​

static unsigned total_tests __initdata;

static unsigned failed_tests __initdata;

​

static void __init test_hexdump_prepare_test(size_t len, int rowsize,

                         int groupsize, char *test,

                         size_t testlen, bool ascii)

{

    char *p;

    const char * const *result;

    size_t l = len;

    int gs = groupsize, rs = rowsize;

    unsigned int i;

    const bool is_be = IS_ENABLED(CONFIG_CPU_BIG_ENDIAN);

​

    if (rs != 16 && rs != 32)

        rs = 16;

​

    if (l > rs)

        l = rs;

​

    if (!is_power_of_2(gs) || gs > 8 || (len % gs != 0))

        gs = 1;

​

    if (gs == 8)

        result = is_be ? test_data_8_be : test_data_8_le;

    else if (gs == 4)

        result = is_be ? test_data_4_be : test_data_4_le;

    else if (gs == 2)

        result = is_be ? test_data_2_be : test_data_2_le;