diff options
Diffstat (limited to 'lib/test_printf.c')
| -rw-r--r-- | lib/test_printf.c | 863 |
1 files changed, 0 insertions, 863 deletions
diff --git a/lib/test_printf.c b/lib/test_printf.c deleted file mode 100644 index 59dbe4f9a4cb..000000000000 --- a/lib/test_printf.c +++ /dev/null @@ -1,863 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Test cases for printf facility. - */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/printk.h> -#include <linux/random.h> -#include <linux/rtc.h> -#include <linux/slab.h> -#include <linux/sprintf.h> -#include <linux/string.h> - -#include <linux/bitmap.h> -#include <linux/dcache.h> -#include <linux/socket.h> -#include <linux/in.h> - -#include <linux/gfp.h> -#include <linux/mm.h> - -#include <linux/property.h> - -#include "../tools/testing/selftests/kselftest_module.h" - -#define BUF_SIZE 256 -#define PAD_SIZE 16 -#define FILL_CHAR '$' - -#define NOWARN(option, comment, block) \ - __diag_push(); \ - __diag_ignore_all(#option, comment); \ - block \ - __diag_pop(); - -KSTM_MODULE_GLOBALS(); - -static char *test_buffer __initdata; -static char *alloced_buffer __initdata; - -static int __printf(4, 0) __init -do_test(int bufsize, const char *expect, int elen, - const char *fmt, va_list ap) -{ - va_list aq; - int ret, written; - - total_tests++; - - memset(alloced_buffer, FILL_CHAR, BUF_SIZE + 2*PAD_SIZE); - va_copy(aq, ap); - ret = vsnprintf(test_buffer, bufsize, fmt, aq); - va_end(aq); - - if (ret != elen) { - pr_warn("vsnprintf(buf, %d, \"%s\", ...) returned %d, expected %d\n", - bufsize, fmt, ret, elen); - return 1; - } - - if (memchr_inv(alloced_buffer, FILL_CHAR, PAD_SIZE)) { - pr_warn("vsnprintf(buf, %d, \"%s\", ...) wrote before buffer\n", bufsize, fmt); - return 1; - } - - if (!bufsize) { - if (memchr_inv(test_buffer, FILL_CHAR, BUF_SIZE + PAD_SIZE)) { - pr_warn("vsnprintf(buf, 0, \"%s\", ...) wrote to buffer\n", - fmt); - return 1; - } - return 0; - } - - written = min(bufsize-1, elen); - if (test_buffer[written]) { - pr_warn("vsnprintf(buf, %d, \"%s\", ...) did not nul-terminate buffer\n", - bufsize, fmt); - return 1; - } - - if (memchr_inv(test_buffer + written + 1, FILL_CHAR, bufsize - (written + 1))) { - pr_warn("vsnprintf(buf, %d, \"%s\", ...) wrote beyond the nul-terminator\n", - bufsize, fmt); - return 1; - } - - if (memchr_inv(test_buffer + bufsize, FILL_CHAR, BUF_SIZE + PAD_SIZE - bufsize)) { - pr_warn("vsnprintf(buf, %d, \"%s\", ...) wrote beyond buffer\n", bufsize, fmt); - return 1; - } - - if (memcmp(test_buffer, expect, written)) { - pr_warn("vsnprintf(buf, %d, \"%s\", ...) wrote '%s', expected '%.*s'\n", - bufsize, fmt, test_buffer, written, expect); - return 1; - } - return 0; -} - -static void __printf(3, 4) __init -__test(const char *expect, int elen, const char *fmt, ...) -{ - va_list ap; - int rand; - char *p; - - if (elen >= BUF_SIZE) { - pr_err("error in test suite: expected output length %d too long. Format was '%s'.\n", - elen, fmt); - failed_tests++; - return; - } - - va_start(ap, fmt); - - /* - * Every fmt+args is subjected to four tests: Three where we - * tell vsnprintf varying buffer sizes (plenty, not quite - * enough and 0), and then we also test that kvasprintf would - * be able to print it as expected. - */ - failed_tests += do_test(BUF_SIZE, expect, elen, fmt, ap); - rand = get_random_u32_inclusive(1, elen + 1); - /* Since elen < BUF_SIZE, we have 1 <= rand <= BUF_SIZE. */ - failed_tests += do_test(rand, expect, elen, fmt, ap); - failed_tests += do_test(0, expect, elen, fmt, ap); - - p = kvasprintf(GFP_KERNEL, fmt, ap); - if (p) { - total_tests++; - if (memcmp(p, expect, elen+1)) { - pr_warn("kvasprintf(..., \"%s\", ...) returned '%s', expected '%s'\n", - fmt, p, expect); - failed_tests++; - } - kfree(p); - } - va_end(ap); -} - -#define test(expect, fmt, ...) \ - __test(expect, strlen(expect), fmt, ##__VA_ARGS__) - -static void __init -test_basic(void) -{ - /* Work around annoying "warning: zero-length gnu_printf format string". */ - char nul = '\0'; - - test("", &nul); - test("100%", "100%%"); - test("xxx%yyy", "xxx%cyyy", '%'); - __test("xxx\0yyy", 7, "xxx%cyyy", '\0'); -} - -static void __init -test_number(void) -{ - test("0x1234abcd ", "%#-12x", 0x1234abcd); - test(" 0x1234abcd", "%#12x", 0x1234abcd); - test("0|001| 12|+123| 1234|-123|-1234", "%d|%03d|%3d|%+d|% d|%+d|% d", 0, 1, 12, 123, 1234, -123, -1234); - NOWARN(-Wformat, "Intentionally test narrowing conversion specifiers.", { - test("0|1|1|128|255", "%hhu|%hhu|%hhu|%hhu|%hhu", 0, 1, 257, 128, -1); - test("0|1|1|-128|-1", "%hhd|%hhd|%hhd|%hhd|%hhd", 0, 1, 257, 128, -1); - test("2015122420151225", "%ho%ho%#ho", 1037, 5282, -11627); - }) - /* - * POSIX/C99: »The result of converting zero with an explicit - * precision of zero shall be no characters.« Hence the output - * from the below test should really be "00|0||| ". However, - * the kernel's printf also produces a single 0 in that - * case. This test case simply documents the current - * behaviour. - */ - test("00|0|0|0|0", "%.2d|%.1d|%.0d|%.*d|%1.0d", 0, 0, 0, 0, 0, 0); -} - -static void __init -test_string(void) -{ - test("", "%s%.0s", "", "123"); - test("ABCD|abc|123", "%s|%.3s|%.*s", "ABCD", "abcdef", 3, "123456"); - test("1 | 2|3 | 4|5 ", "%-3s|%3s|%-*s|%*s|%*s", "1", "2", 3, "3", 3, "4", -3, "5"); - test("1234 ", "%-10.4s", "123456"); - test(" 1234", "%10.4s", "123456"); - /* - * POSIX and C99 say that a negative precision (which is only - * possible to pass via a * argument) should be treated as if - * the precision wasn't present, and that if the precision is - * omitted (as in %.s), the precision should be taken to be - * 0. However, the kernel's printf behave exactly opposite, - * treating a negative precision as 0 and treating an omitted - * precision specifier as if no precision was given. - * - * These test cases document the current behaviour; should - * anyone ever feel the need to follow the standards more - * closely, this can be revisited. - */ - test(" ", "%4.*s", -5, "123456"); - test("123456", "%.s", "123456"); - test("a||", "%.s|%.0s|%.*s", "a", "b", 0, "c"); - test("a | | ", "%-3.s|%-3.0s|%-3.*s", "a", "b", 0, "c"); -} - -#define PLAIN_BUF_SIZE 64 /* leave some space so we don't oops */ - -#if BITS_PER_LONG == 64 - -#define PTR_WIDTH 16 -#define PTR ((void *)0xffff0123456789abUL) -#define PTR_STR "ffff0123456789ab" -#define PTR_VAL_NO_CRNG "(____ptrval____)" -#define ZEROS "00000000" /* hex 32 zero bits */ -#define ONES "ffffffff" /* hex 32 one bits */ - -static int __init -plain_format(void) -{ - char buf[PLAIN_BUF_SIZE]; - int nchars; - - nchars = snprintf(buf, PLAIN_BUF_SIZE, "%p", PTR); - - if (nchars != PTR_WIDTH) - return -1; - - if (strncmp(buf, PTR_VAL_NO_CRNG, PTR_WIDTH) == 0) { - pr_warn("crng possibly not yet initialized. plain 'p' buffer contains \"%s\"", - PTR_VAL_NO_CRNG); - return 0; - } - - if (strncmp(buf, ZEROS, strlen(ZEROS)) != 0) - return -1; - - return 0; -} - -#else - -#define PTR_WIDTH 8 -#define PTR ((void *)0x456789ab) -#define PTR_STR "456789ab" -#define PTR_VAL_NO_CRNG "(ptrval)" -#define ZEROS "" -#define ONES "" - -static int __init -plain_format(void) -{ - /* Format is implicitly tested for 32 bit machines by plain_hash() */ - return 0; -} - -#endif /* BITS_PER_LONG == 64 */ - -static int __init -plain_hash_to_buffer(const void *p, char *buf, size_t len) -{ - int nchars; - - nchars = snprintf(buf, len, "%p", p); - - if (nchars != PTR_WIDTH) - return -1; - - if (strncmp(buf, PTR_VAL_NO_CRNG, PTR_WIDTH) == 0) { - pr_warn("crng possibly not yet initialized. plain 'p' buffer contains \"%s\"", - PTR_VAL_NO_CRNG); - return 0; - } - - return 0; -} - -static int __init -plain_hash(void) -{ - char buf[PLAIN_BUF_SIZE]; - int ret; - - ret = plain_hash_to_buffer(PTR, buf, PLAIN_BUF_SIZE); - if (ret) - return ret; - - if (strncmp(buf, PTR_STR, PTR_WIDTH) == 0) - return -1; - - return 0; -} - -/* - * We can't use test() to test %p because we don't know what output to expect - * after an address is hashed. - */ -static void __init -plain(void) -{ - int err; - - if (no_hash_pointers) { - pr_warn("skipping plain 'p' tests"); - skipped_tests += 2; - return; - } - - err = plain_hash(); - if (err) { - pr_warn("plain 'p' does not appear to be hashed\n"); - failed_tests++; - return; - } - - err = plain_format(); - if (err) { - pr_warn("hashing plain 'p' has unexpected format\n"); - failed_tests++; - } -} - -static void __init -test_hashed(const char *fmt, const void *p) -{ - char buf[PLAIN_BUF_SIZE]; - int ret; - - /* - * No need to increase failed test counter since this is assumed - * to be called after plain(). - */ - ret = plain_hash_to_buffer(p, buf, PLAIN_BUF_SIZE); - if (ret) - return; - - test(buf, fmt, p); -} - -/* - * NULL pointers aren't hashed. - */ -static void __init -null_pointer(void) -{ - test(ZEROS "00000000", "%p", NULL); - test(ZEROS "00000000", "%px", NULL); - test("(null)", "%pE", NULL); -} - -/* - * Error pointers aren't hashed. - */ -static void __init -error_pointer(void) -{ - test(ONES "fffffff5", "%p", ERR_PTR(-11)); - test(ONES "fffffff5", "%px", ERR_PTR(-11)); - test("(efault)", "%pE", ERR_PTR(-11)); -} - -#define PTR_INVALID ((void *)0x000000ab) - -static void __init -invalid_pointer(void) -{ - test_hashed("%p", PTR_INVALID); - test(ZEROS "000000ab", "%px", PTR_INVALID); - test("(efault)", "%pE", PTR_INVALID); -} - -static void __init -symbol_ptr(void) -{ -} - -static void __init -kernel_ptr(void) -{ - /* We can't test this without access to kptr_restrict. */ -} - -static void __init -struct_resource(void) -{ - struct resource test_resource = { - .start = 0xc0ffee00, - .end = 0xc0ffee00, - .flags = IORESOURCE_MEM, - }; - - test("[mem 0xc0ffee00 flags 0x200]", - "%pr", &test_resource); - - test_resource = (struct resource) { - .start = 0xc0ffee, - .end = 0xba5eba11, - .flags = IORESOURCE_MEM, - }; - test("[mem 0x00c0ffee-0xba5eba11 flags 0x200]", - "%pr", &test_resource); - - test_resource = (struct resource) { - .start = 0xba5eba11, - .end = 0xc0ffee, - .flags = IORESOURCE_MEM, - }; - test("[mem 0xba5eba11-0x00c0ffee flags 0x200]", - "%pr", &test_resource); - - test_resource = (struct resource) { - .start = 0xba5eba11, - .end = 0xba5eca11, - .flags = IORESOURCE_MEM, - }; - - test("[mem 0xba5eba11-0xba5eca11 flags 0x200]", - "%pr", &test_resource); - - test_resource = (struct resource) { - .start = 0xba11, - .end = 0xca10, - .flags = IORESOURCE_IO | - IORESOURCE_DISABLED | - IORESOURCE_UNSET, - }; - - test("[io size 0x1000 disabled]", - "%pR", &test_resource); -} - -static void __init -struct_range(void) -{ - struct range test_range = DEFINE_RANGE(0xc0ffee00ba5eba11, - 0xc0ffee00ba5eba11); - test("[range 0xc0ffee00ba5eba11]", "%pra", &test_range); - - test_range = DEFINE_RANGE(0xc0ffee, 0xba5eba11); - test("[range 0x0000000000c0ffee-0x00000000ba5eba11]", - "%pra", &test_range); - - test_range = DEFINE_RANGE(0xba5eba11, 0xc0ffee); - test("[range 0x00000000ba5eba11-0x0000000000c0ffee]", - "%pra", &test_range); -} - -static void __init -addr(void) -{ -} - -static void __init -escaped_str(void) -{ -} - -static void __init -hex_string(void) -{ - const char buf[3] = {0xc0, 0xff, 0xee}; - - test("c0 ff ee|c0:ff:ee|c0-ff-ee|c0ffee", - "%3ph|%3phC|%3phD|%3phN", buf, buf, buf, buf); - test("c0 ff ee|c0:ff:ee|c0-ff-ee|c0ffee", - "%*ph|%*phC|%*phD|%*phN", 3, buf, 3, buf, 3, buf, 3, buf); -} - -static void __init -mac(void) -{ - const u8 addr[6] = {0x2d, 0x48, 0xd6, 0xfc, 0x7a, 0x05}; - - test("2d:48:d6:fc:7a:05", "%pM", addr); - test("05:7a:fc:d6:48:2d", "%pMR", addr); - test("2d-48-d6-fc-7a-05", "%pMF", addr); - test("2d48d6fc7a05", "%pm", addr); - test("057afcd6482d", "%pmR", addr); -} - -static void __init -ip4(void) -{ - struct sockaddr_in sa; - - sa.sin_family = AF_INET; - sa.sin_port = cpu_to_be16(12345); - sa.sin_addr.s_addr = cpu_to_be32(0x7f000001); - - test("127.000.000.001|127.0.0.1", "%pi4|%pI4", &sa.sin_addr, &sa.sin_addr); - test("127.000.000.001|127.0.0.1", "%piS|%pIS", &sa, &sa); - sa.sin_addr.s_addr = cpu_to_be32(0x01020304); - test("001.002.003.004:12345|1.2.3.4:12345", "%piSp|%pISp", &sa, &sa); -} - -static void __init -ip6(void) -{ -} - -static void __init -ip(void) -{ - ip4(); - ip6(); -} - -static void __init -uuid(void) -{ - const char uuid[16] = {0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, - 0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf}; - - test("00010203-0405-0607-0809-0a0b0c0d0e0f", "%pUb", uuid); - test("00010203-0405-0607-0809-0A0B0C0D0E0F", "%pUB", uuid); - test("03020100-0504-0706-0809-0a0b0c0d0e0f", "%pUl", uuid); - test("03020100-0504-0706-0809-0A0B0C0D0E0F", "%pUL", uuid); -} - -static struct dentry test_dentry[4] __initdata = { - { .d_parent = &test_dentry[0], - .d_name = QSTR_INIT(test_dentry[0].d_iname, 3), - .d_iname = "foo" }, - { .d_parent = &test_dentry[0], - .d_name = QSTR_INIT(test_dentry[1].d_iname, 5), - .d_iname = "bravo" }, - { .d_parent = &test_dentry[1], - .d_name = QSTR_INIT(test_dentry[2].d_iname, 4), - .d_iname = "alfa" }, - { .d_parent = &test_dentry[2], - .d_name = QSTR_INIT(test_dentry[3].d_iname, 5), - .d_iname = "romeo" }, -}; - -static void __init -dentry(void) -{ - test("foo", "%pd", &test_dentry[0]); - test("foo", "%pd2", &test_dentry[0]); - - test("(null)", "%pd", NULL); - test("(efault)", "%pd", PTR_INVALID); - test("(null)", "%pD", NULL); - test("(efault)", "%pD", PTR_INVALID); - - test("romeo", "%pd", &test_dentry[3]); - test("alfa/romeo", "%pd2", &test_dentry[3]); - test("bravo/alfa/romeo", "%pd3", &test_dentry[3]); - test("/bravo/alfa/romeo", "%pd4", &test_dentry[3]); - test("/bravo/alfa", "%pd4", &test_dentry[2]); - - test("bravo/alfa |bravo/alfa ", "%-12pd2|%*pd2", &test_dentry[2], -12, &test_dentry[2]); - test(" bravo/alfa| bravo/alfa", "%12pd2|%*pd2", &test_dentry[2], 12, &test_dentry[2]); -} - -static void __init -struct_va_format(void) -{ -} - -static void __init -time_and_date(void) -{ - /* 1543210543 */ - const struct rtc_time tm = { - .tm_sec = 43, - .tm_min = 35, - .tm_hour = 5, - .tm_mday = 26, - .tm_mon = 10, - .tm_year = 118, - }; - /* 2019-01-04T15:32:23 */ - time64_t t = 1546615943; - - test("(%pt?)", "%pt", &tm); - test("2018-11-26T05:35:43", "%ptR", &tm); - test("0118-10-26T05:35:43", "%ptRr", &tm); - test("05:35:43|2018-11-26", "%ptRt|%ptRd", &tm, &tm); - test("05:35:43|0118-10-26", "%ptRtr|%ptRdr", &tm, &tm); - test("05:35:43|2018-11-26", "%ptRttr|%ptRdtr", &tm, &tm); - test("05:35:43 tr|2018-11-26 tr", "%ptRt tr|%ptRd tr", &tm, &tm); - - test("2019-01-04T15:32:23", "%ptT", &t); - test("0119-00-04T15:32:23", "%ptTr", &t); - test("15:32:23|2019-01-04", "%ptTt|%ptTd", &t, &t); - test("15:32:23|0119-00-04", "%ptTtr|%ptTdr", &t, &t); - - test("2019-01-04 15:32:23", "%ptTs", &t); - test("0119-00-04 15:32:23", "%ptTsr", &t); - test("15:32:23|2019-01-04", "%ptTts|%ptTds", &t, &t); - test("15:32:23|0119-00-04", "%ptTtrs|%ptTdrs", &t, &t); -} - -static void __init -struct_clk(void) -{ -} - -static void __init -large_bitmap(void) -{ - const int nbits = 1 << 16; - unsigned long *bits = bitmap_zalloc(nbits, GFP_KERNEL); - if (!bits) - return; - - bitmap_set(bits, 1, 20); - bitmap_set(bits, 60000, 15); - test("1-20,60000-60014", "%*pbl", nbits, bits); - bitmap_free(bits); -} - -static void __init -bitmap(void) -{ - DECLARE_BITMAP(bits, 20); - const int primes[] = {2,3,5,7,11,13,17,19}; - int i; - - bitmap_zero(bits, 20); - test("00000|00000", "%20pb|%*pb", bits, 20, bits); - test("|", "%20pbl|%*pbl", bits, 20, bits); - - for (i = 0; i < ARRAY_SIZE(primes); ++i) - set_bit(primes[i], bits); - test("a28ac|a28ac", "%20pb|%*pb", bits, 20, bits); - test("2-3,5,7,11,13,17,19|2-3,5,7,11,13,17,19", "%20pbl|%*pbl", bits, 20, bits); - - bitmap_fill(bits, 20); - test("fffff|fffff", "%20pb|%*pb", bits, 20, bits); - test("0-19|0-19", "%20pbl|%*pbl", bits, 20, bits); - - large_bitmap(); -} - -static void __init -netdev_features(void) -{ -} - -struct page_flags_test { - int width; - int shift; - int mask; - const char *fmt; - const char *name; -}; - -static const struct page_flags_test pft[] = { - {SECTIONS_WIDTH, SECTIONS_PGSHIFT, SECTIONS_MASK, - "%d", "section"}, - {NODES_WIDTH, NODES_PGSHIFT, NODES_MASK, - "%d", "node"}, - {ZONES_WIDTH, ZONES_PGSHIFT, ZONES_MASK, - "%d", "zone"}, - {LAST_CPUPID_WIDTH, LAST_CPUPID_PGSHIFT, LAST_CPUPID_MASK, - "%#x", "lastcpupid"}, - {KASAN_TAG_WIDTH, KASAN_TAG_PGSHIFT, KASAN_TAG_MASK, - "%#x", "kasantag"}, -}; - -static void __init -page_flags_test(int section, int node, int zone, int last_cpupid, - int kasan_tag, unsigned long flags, const char *name, - char *cmp_buf) -{ - unsigned long values[] = {section, node, zone, last_cpupid, kasan_tag}; - unsigned long size; - bool append = false; - int i; - - for (i = 0; i < ARRAY_SIZE(values); i++) - flags |= (values[i] & pft[i].mask) << pft[i].shift; - - size = scnprintf(cmp_buf, BUF_SIZE, "%#lx(", flags); - if (flags & PAGEFLAGS_MASK) { - size += scnprintf(cmp_buf + size, BUF_SIZE - size, "%s", name); - append = true; - } - - for (i = 0; i < ARRAY_SIZE(pft); i++) { - if (!pft[i].width) - continue; - - if (append) - size += scnprintf(cmp_buf + size, BUF_SIZE - size, "|"); - - size += scnprintf(cmp_buf + size, BUF_SIZE - size, "%s=", - pft[i].name); - size += scnprintf(cmp_buf + size, BUF_SIZE - size, pft[i].fmt, - values[i] & pft[i].mask); - append = true; - } - - snprintf(cmp_buf + size, BUF_SIZE - size, ")"); - - test(cmp_buf, "%pGp", &flags); -} - -static void __init -flags(void) -{ - unsigned long flags; - char *cmp_buffer; - gfp_t gfp; - - cmp_buffer = kmalloc(BUF_SIZE, GFP_KERNEL); - if (!cmp_buffer) - return; - - flags = 0; - page_flags_test(0, 0, 0, 0, 0, flags, "", cmp_buffer); - - flags = 1UL << NR_PAGEFLAGS; - page_flags_test(0, 0, 0, 0, 0, flags, "", cmp_buffer); - - flags |= 1UL << PG_uptodate | 1UL << PG_dirty | 1UL << PG_lru - | 1UL << PG_active | 1UL << PG_swapbacked; - page_flags_test(1, 1, 1, 0x1fffff, 1, flags, - "uptodate|dirty|lru|active|swapbacked", - cmp_buffer); - - flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC; - test("read|exec|mayread|maywrite|mayexec", "%pGv", &flags); - - gfp = GFP_TRANSHUGE; - test("GFP_TRANSHUGE", "%pGg", &gfp); - - gfp = GFP_ATOMIC|__GFP_DMA; - test("GFP_ATOMIC|GFP_DMA", "%pGg", &gfp); - - gfp = __GFP_HIGH; - test("__GFP_HIGH", "%pGg", &gfp); - - /* Any flags not translated by the table should remain numeric */ - gfp = ~__GFP_BITS_MASK; - snprintf(cmp_buffer, BUF_SIZE, "%#lx", (unsigned long) gfp); - test(cmp_buffer, "%pGg", &gfp); - - snprintf(cmp_buffer, BUF_SIZE, "__GFP_HIGH|%#lx", - (unsigned long) gfp); - gfp |= __GFP_HIGH; - test(cmp_buffer, "%pGg", &gfp); - - kfree(cmp_buffer); -} - -static void __init fwnode_pointer(void) -{ - const struct software_node first = { .name = "first" }; - const struct software_node second = { .name = "second", .parent = &first }; - const struct software_node third = { .name = "third", .parent = &second }; - const struct software_node *group[] = { &first, &second, &third, NULL }; - const char * const full_name_second = "first/second"; - const char * const full_name_third = "first/second/third"; - const char * const second_name = "second"; - const char * const third_name = "third"; - int rval; - - rval = software_node_register_node_group(group); - if (rval) { - pr_warn("cannot register softnodes; rval %d\n", rval); - return; - } - - test(full_name_second, "%pfw", software_node_fwnode(&second)); - test(full_name_third, "%pfw", software_node_fwnode(&third)); - test(full_name_third, "%pfwf", software_node_fwnode(&third)); - test(second_name, "%pfwP", software_node_fwnode(&second)); - test(third_name, "%pfwP", software_node_fwnode(&third)); - - software_node_unregister_node_group(group); -} - -static void __init fourcc_pointer(void) -{ - struct { - u32 code; - char *str; - } const try[] = { - { 0x3231564e, "NV12 little-endian (0x3231564e)", }, - { 0xb231564e, "NV12 big-endian (0xb231564e)", }, - { 0x10111213, ".... little-endian (0x10111213)", }, - { 0x20303159, "Y10 little-endian (0x20303159)", }, - }; - unsigned int i; - - for (i = 0; i < ARRAY_SIZE(try); i++) - test(try[i].str, "%p4cc", &try[i].code); -} - -static void __init -errptr(void) -{ - test("-1234", "%pe", ERR_PTR(-1234)); - - /* Check that %pe with a non-ERR_PTR gets treated as ordinary %p. */ - BUILD_BUG_ON(IS_ERR(PTR)); - test_hashed("%pe", PTR); - -#ifdef CONFIG_SYMBOLIC_ERRNAME - test("(-ENOTSOCK)", "(%pe)", ERR_PTR(-ENOTSOCK)); - test("(-EAGAIN)", "(%pe)", ERR_PTR(-EAGAIN)); - BUILD_BUG_ON(EAGAIN != EWOULDBLOCK); - test("(-EAGAIN)", "(%pe)", ERR_PTR(-EWOULDBLOCK)); - test("[-EIO ]", "[%-8pe]", ERR_PTR(-EIO)); - test("[ -EIO]", "[%8pe]", ERR_PTR(-EIO)); - test("-EPROBE_DEFER", "%pe", ERR_PTR(-EPROBE_DEFER)); -#endif -} - -static void __init -test_pointer(void) -{ - plain(); - null_pointer(); - error_pointer(); - invalid_pointer(); - symbol_ptr(); - kernel_ptr(); - struct_resource(); - struct_range(); - addr(); - escaped_str(); - hex_string(); - mac(); - ip(); - uuid(); - dentry(); - struct_va_format(); - time_and_date(); - struct_clk(); - bitmap(); - netdev_features(); - flags(); - errptr(); - fwnode_pointer(); - fourcc_pointer(); -} - -static void __init selftest(void) -{ - alloced_buffer = kmalloc(BUF_SIZE + 2*PAD_SIZE, GFP_KERNEL); - if (!alloced_buffer) - return; - test_buffer = alloced_buffer + PAD_SIZE; - - test_basic(); - test_number(); - test_string(); - test_pointer(); - - kfree(alloced_buffer); -} - -KSTM_MODULE_LOADERS(test_printf); -MODULE_AUTHOR("Rasmus Villemoes <linux@rasmusvillemoes.dk>"); -MODULE_DESCRIPTION("Test cases for printf facility"); -MODULE_LICENSE("GPL"); |