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Index: include/Makefile
===================================================================
--- include/Makefile
+++ include/Makefile
@@ -459,6 +459,9 @@
${SDESTDIR}${INCLUDEDIR}/dev/mlx5
.endif
+HAS_TESTS=
+SUBDIR.${MK_TESTS}+= tests
+
.include <bsd.prog.mk>
installincludes: ${SHARED}
Index: include/tests/Makefile
===================================================================
--- /dev/null
+++ include/tests/Makefile
@@ -0,0 +1,11 @@
+# Copyright 2021 M. Warner Losh <imp@FreeBSD.org>
+# SPDX-License-Identifier: BSD-2-Clause
+
+.include <bsd.own.mk>
+
+ATF_TESTS_C+= byteswap_test
+ATF_TESTS_C+= byteswap_endian_test
+ATF_TESTS_C+= endian_test
+ATF_TESTS_C+= sys_endian_test
+
+.include <bsd.test.mk>
Index: include/tests/byteswap_endian_test.c
===================================================================
--- /dev/null
+++ include/tests/byteswap_endian_test.c
@@ -0,0 +1,9 @@
+/*-
+ * Copyright (c) 2021 M Warner Losh <imp@FreeBSD.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+/* Make sure this still passes if both endian.h and byteswap.h included */
+#include <endian.h>
+#include "byteswap_test.c"
Index: include/tests/byteswap_test.c
===================================================================
--- /dev/null
+++ include/tests/byteswap_test.c
@@ -0,0 +1,76 @@
+/*-
+ * Copyright (c) 2021 M Warner Losh <imp@FreeBSD.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <byteswap.h>
+
+#include <atf-c.h>
+
+ATF_TC(byteswap);
+ATF_TC_HEAD(byteswap, tc)
+{
+ atf_tc_set_md_var(tc, "descr", "Test swapping macros in <byteswap.h>");
+}
+
+ATF_TC_BODY(byteswap, tc)
+{
+ uint16_t ui16;
+ uint32_t ui32;
+ uint64_t ui64;
+
+ // glibc defines the {__,}bswap_{16,32,64}
+#ifndef __bswap_16
+ atf_tc_fail_nonfatal("__bswap_16 not defined");
+#endif
+#ifndef bswap_16
+ atf_tc_fail_nonfatal("bswap_16 not defined");
+#endif
+#ifndef __bswap_32
+ atf_tc_fail_nonfatal("__bswap_32 not defined");
+#endif
+#ifndef bswap_32
+ atf_tc_fail_nonfatal("bswap_32 not defined");
+#endif
+#ifndef __bswap_64
+ atf_tc_fail_nonfatal("__bswap_64 not defined");
+#endif
+#ifndef bswap_64
+ atf_tc_fail_nonfatal("bswap_64 not defined");
+#endif
+
+ // glibc does not 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
+
+ ui16 = 0x1234;
+ ATF_REQUIRE_MSG(0x3412 == bswap_16(ui16),
+ "bswap16(%#x) != 0x3412 instead %#x\n", ui16, bswap_16(ui16));
+
+ ui32 = 0x12345678ul;
+ ATF_REQUIRE_MSG(0x78563412ul == bswap_32(ui32),
+ "bswap32(%#lx) != 0x78563412 instead %#lx\n",
+ (unsigned long)ui32, (unsigned long)bswap_32(ui32));
+
+ ui64 = 0x123456789abcdef0ull;
+ ATF_REQUIRE_MSG(0xf0debc9a78563412ull == bswap_64(ui64),
+ "bswap64(%#llx) != 0x3412 instead %#llx\n",
+ (unsigned long long)ui64, (unsigned long long)bswap_64(ui64));
+
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+
+ ATF_TP_ADD_TC(tp, byteswap);
+
+ return atf_no_error();
+}
Index: include/tests/endian_test.c
===================================================================
--- /dev/null
+++ include/tests/endian_test.c
@@ -0,0 +1,137 @@
+/*-
+ * 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();
+}
Index: include/tests/sys_endian_test.c
===================================================================
--- /dev/null
+++ include/tests/sys_endian_test.c
@@ -0,0 +1,134 @@
+/*-
+ * Copyright (c) 2021 M Warner Losh <imp@FreeBSD.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <sys/endian.h>
+
+#include <atf-c.h>
+
+ATF_TC(sys_endian);
+ATF_TC_HEAD(sys_endian, tc)
+{
+ atf_tc_set_md_var(tc, "descr", "Test swapping macros in <byteswap.h>");
+}
+
+ATF_TC_BODY(sys_endian, tc)
+{
+ // FreeBSD sys/endian.h doesn't define the {__,}bswap_{16,32,64}
+#ifdef __bswap_16
+ atf_tc_fail_nonfatal("__bswap_16 defined");
+#endif
+#ifdef bswap_16
+ atf_tc_fail_nonfatal("bswap_16 defined");
+#endif
+#ifdef __bswap_32
+ atf_tc_fail_nonfatal("__bswap_32 defined");
+#endif
+#ifdef bswap_32
+ atf_tc_fail_nonfatal("bswap_32 defined");
+#endif
+#ifdef __bswap_64
+ atf_tc_fail_nonfatal("__bswap_64 defined");
+#endif
+#ifdef bswap_64
+ atf_tc_fail_nonfatal("bswap_64 defined");
+#endif
+
+ // FreeBSD sys/endian.h does define bswap{16,32,64}
+#ifndef bswap16
+ atf_tc_fail_nonfatal("bswap16 not defined");
+#endif
+#ifndef bswap32
+ atf_tc_fail_nonfatal("bswap32 not defined");
+#endif
+#ifndef bswap64
+ atf_tc_fail_nonfatal("bswap64 not defined");
+#endif
+
+ // FreeBSD defines with one underscore
+ // We don't test for two 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 _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, sys_endian);
+
+ return atf_no_error();
+}

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