Move rtems/freebsd to freebsd and contrib to freebsd/contrib

1 files changed, 114 insertions, 0 deletions

diff --git a/freebsd/sys/linker_set.h b/freebsd/sys/linker_set.h
new file mode 100644
index 00000000..94b307ef
--- /dev/null
+++ b/freebsd/sys/linker_set.h
@@ -0,0 +1,114 @@
+/*-
+ * Copyright (c) 1999 John D. Polstra
+ * Copyright (c) 1999,2001 Peter Wemm <peter@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _SYS_LINKER_SET_HH_
+#define _SYS_LINKER_SET_HH_
+
+#ifndef _SYS_CDEFS_HH_
+#error this file needs sys/cdefs.h as a prerequisite
+#endif
+
+/*
+ * The following macros are used to declare global sets of objects, which
+ * are collected by the linker into a `linker_set' as defined below.
+ * For ELF, this is done by constructing a separate segment for each set.
+ */
+
+/*
+ * Private macros, not to be used outside this header file.
+ */
+#ifdef __GNUCLIKE___SECTION
+#ifndef __rtems__
+#define __MAKE_SET(set, sym)						\
+	static void const * const __set_##set##_sym_##sym 		\
+	__section("set_" #set) __used = &sym
+#else /* __rtems__ */
+#define __MAKE_SET(set, sym)						\
+	static void const * const __set_##set##_sym_##sym 		\
+	__section("_bsd_set_" #set) __used = &sym
+#endif /* __rtems__ */
+#else /* !__GNUCLIKE___SECTION */
+#ifndef lint
+#error this file needs to be ported to your compiler
+#endif /* lint */
+#define __MAKE_SET(set, sym)	extern void const * const (__set_##set##_sym_##sym)
+#endif /* __GNUCLIKE___SECTION */
+
+/*
+ * Public macros.
+ */
+#define TEXT_SET(set, sym)	__MAKE_SET(set, sym)
+#define DATA_SET(set, sym)	__MAKE_SET(set, sym)
+#define BSS_SET(set, sym)	__MAKE_SET(set, sym)
+#define ABS_SET(set, sym)	__MAKE_SET(set, sym)
+#define SET_ENTRY(set, sym)	__MAKE_SET(set, sym)
+
+/*
+ * Initialize before referring to a given linker set.
+ */
+#ifndef __rtems__
+#define SET_DECLARE(set, ptype)						\
+	extern ptype *__CONCAT(__start_set_,set);			\
+	extern ptype *__CONCAT(__stop_set_,set)
+
+#define SET_BEGIN(set)							\
+	(&__CONCAT(__start_set_,set))
+#define SET_LIMIT(set)							\
+	(&__CONCAT(__stop_set_,set))
+#else /* __rtems__ */
+#define SET_DECLARE(set, ptype)						\
+	extern ptype *__CONCAT(_bsd__start_set_,set) [];		\
+	extern ptype *__CONCAT(_bsd__stop_set_,set) []
+
+#define SET_BEGIN(set)							\
+	(__CONCAT(_bsd__start_set_,set))
+#define SET_LIMIT(set)							\
+	(__CONCAT(_bsd__stop_set_,set))
+#endif /* __rtems__ */
+
+/*
+ * Iterate over all the elements of a set.
+ *
+ * Sets always contain addresses of things, and "pvar" points to words
+ * containing those addresses.  Thus is must be declared as "type **pvar",
+ * and the address of each set item is obtained inside the loop by "*pvar".
+ */
+#define SET_FOREACH(pvar, set)						\
+	for (pvar = SET_BEGIN(set); pvar < SET_LIMIT(set); pvar++)
+
+#define SET_ITEM(set, i)						\
+	((SET_BEGIN(set))[i])
+
+/*
+ * Provide a count of the items in a set.
+ */
+#define SET_COUNT(set)							\
+	(SET_LIMIT(set) - SET_BEGIN(set))
+
+#endif	/* _SYS_LINKER_SET_HH_ */