diff options
Diffstat (limited to 'tests/include/endian_test.c')
| -rw-r--r-- | tests/include/endian_test.c | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/tests/include/endian_test.c b/tests/include/endian_test.c new file mode 100644 index 000000000000..2431b54535a2 --- /dev/null +++ b/tests/include/endian_test.c @@ -0,0 +1,139 @@ +/*- + * Copyright (c) 2021 M. Warner Losh <imp@FreeBSD.org> + * + * SPDX-License-Identifier: BSD-2-Clause + */ + +#include <endian.h> + +#include <atf-c.h> + +ATF_TC(endian); +ATF_TC_HEAD(endian, tc) +{ + atf_tc_set_md_var(tc, "descr", "Test swapping macros in <byteswap.h>"); +} + +ATF_TC_BODY(endian, tc) +{ + /* glibc doesn't define the {__,}bswap_{16,32,64} */ +#ifdef __bswap_16 + atf_tc_fail_nonfatal("__bswap_16 improperly defined"); +#endif +#ifdef bswap_16 + atf_tc_fail_nonfatal("bswap_16 improperly defined"); +#endif +#ifdef __bswap_32 + atf_tc_fail_nonfatal("__bswap_32 improperly defined"); +#endif +#ifdef bswap_32 + atf_tc_fail_nonfatal("bswap_32 improperly defined"); +#endif +#ifdef __bswap_64 + atf_tc_fail_nonfatal("__bswap_64 improperly defined"); +#endif +#ifdef bswap_64 + atf_tc_fail_nonfatal("bswap_64 improperly defined"); +#endif + + /* glibc doesn't define bswap{16,32,64} */ +#ifdef bswap16 + atf_tc_fail_nonfatal("bswap16 improperly defined"); +#endif +#ifdef bswap32 + atf_tc_fail_nonfatal("bswap32 improperly defined"); +#endif +#ifdef bswap64 + atf_tc_fail_nonfatal("bswap64 improperly defined"); +#endif + + /* + * glibc defines with two underscores. We don't test for only one since + * that doesn't interfere. + */ +#ifndef __BIG_ENDIAN + atf_tc_fail_nonfatal("__BIG_ENDIAN not defined"); +#endif +#ifndef __LITTLE_ENDIAN + atf_tc_fail_nonfatal("__LITTLE_ENDIAN not defined"); +#endif +#ifndef __PDP_ENDIAN + atf_tc_fail_nonfatal("__PDP_ENDIAN not defined"); +#endif +#ifndef __FLOAT_WORD_ORDER + atf_tc_fail_nonfatal("__FLOAT_WORD_ORDER not defined"); +#endif +#ifndef __BYTE_ORDER + atf_tc_fail_nonfatal("__BYTE_ORDER not defined"); +#endif + + /* order to host */ +#ifdef __BYTE_ORDER +#if __BYTE_ORDER == __BIG_ENDIAN +#define H16(x) be16toh(x) +#define H32(x) be32toh(x) +#define H64(x) be64toh(x) +#define O16(x) le16toh(x) +#define O32(x) le32toh(x) +#define O64(x) le64toh(x) +#else +#define H16(x) le16toh(x) +#define H32(x) le32toh(x) +#define H64(x) le64toh(x) +#define O16(x) be16toh(x) +#define O32(x) be32toh(x) +#define O64(x) be64toh(x) +#endif +#endif + ATF_REQUIRE(H16(0x1234) == 0x1234); + ATF_REQUIRE(H32(0x12345678ul) == 0x12345678ul); + ATF_REQUIRE(H64(0x123456789abcdef0ull) == 0x123456789abcdef0ull); + ATF_REQUIRE(O16(0x1234) == __bswap16(0x1234)); + ATF_REQUIRE(O32(0x12345678ul) == __bswap32(0x12345678ul)); + ATF_REQUIRE(O64(0x123456789abcdef0ull) == __bswap64(0x123456789abcdef0ull)); +#undef H16 +#undef H32 +#undef H64 +#undef O16 +#undef O32 +#undef O64 + + /* host to order */ +#ifdef __BYTE_ORDER +#if __BYTE_ORDER == __BIG_ENDIAN +#define H16(x) htobe16(x) +#define H32(x) htobe32(x) +#define H64(x) htobe64(x) +#define O16(x) htole16(x) +#define O32(x) htole32(x) +#define O64(x) htole64(x) +#else +#define H16(x) htole16(x) +#define H32(x) htole32(x) +#define H64(x) htole64(x) +#define O16(x) htobe16(x) +#define O32(x) htobe32(x) +#define O64(x) htobe64(x) +#endif +#endif + ATF_REQUIRE(H16(0x1234) == 0x1234); + ATF_REQUIRE(H32(0x12345678ul) == 0x12345678ul); + ATF_REQUIRE(H64(0x123456789abcdef0ull) == 0x123456789abcdef0ull); + ATF_REQUIRE(O16(0x1234) == __bswap16(0x1234)); + ATF_REQUIRE(O32(0x12345678ul) == __bswap32(0x12345678ul)); + ATF_REQUIRE(O64(0x123456789abcdef0ull) == __bswap64(0x123456789abcdef0ull)); +#undef H16 +#undef H32 +#undef H64 +#undef O16 +#undef O32 +#undef O64 +} + +ATF_TP_ADD_TCS(tp) +{ + + ATF_TP_ADD_TC(tp, endian); + + return atf_no_error(); +} |