[src/trunk]: src/lib/csu/sh3_elf .init/.fini support.

[tsubai <tsubai%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/ba1f1b16a284
branches:  trunk
changeset: 513095:ba1f1b16a284
user:      tsubai <tsubai%NetBSD.org@localhost>
date:      Mon Jul 23 20:43:31 2001 +0000

description:
.init/.fini support.

diffstat:

 lib/csu/sh3_elf/Makefile   |   4 +-
 lib/csu/sh3_elf/dot_init.h |  75 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 78 insertions(+), 1 deletions(-)

diffs (89 lines):

diff -r f97983fb5adc -r ba1f1b16a284 lib/csu/sh3_elf/Makefile
--- a/lib/csu/sh3_elf/Makefile  Mon Jul 23 20:39:16 2001 +0000
+++ b/lib/csu/sh3_elf/Makefile  Mon Jul 23 20:43:31 2001 +0000
@@ -1,3 +1,5 @@
-#      $NetBSD: Makefile,v 1.1 1999/10/07 11:56:29 msaitoh Exp $
+#      $NetBSD: Makefile,v 1.2 2001/07/23 20:43:31 tsubai Exp $
+
+CPPFLAGS+= -I- -I${.CURDIR}
 
 .include "${.CURDIR}/../common_elf/Makefile.inc"
diff -r f97983fb5adc -r ba1f1b16a284 lib/csu/sh3_elf/dot_init.h
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/lib/csu/sh3_elf/dot_init.h        Mon Jul 23 20:43:31 2001 +0000
@@ -0,0 +1,75 @@
+/*     $NetBSD: dot_init.h,v 1.1 2001/07/23 20:43:31 tsubai Exp $      */
+
+/*-
+ * Copyright (c) 2001 Ross Harvey
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *     This product includes software developed by the NetBSD
+ *     Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+#include <sys/cdefs.h>                 /* RCS ID & Copyright macro defns */
+
+/*
+ * These must be extern to avoid warnings ("declared static but never defined")
+ * However, only the declaration is extern, the actually __asm() defines them
+ * as static.
+ */
+#define INIT_FALLTHRU_DECL void init_fallthru(void)
+#define FINI_FALLTHRU_DECL void fini_fallthru(void)
+
+#define INIT_FALLTHRU()        init_fallthru()
+#define FINI_FALLTHRU()        fini_fallthru()
+
+#define MD_SECTION_PROLOGUE(sect, entry_pt)                \
+               __asm (                                     \
+               ".section "#sect",\"ax\",@progbits      \n" \
+               #entry_pt":                             \n" \
+               "       sts.l   pr, @-r15               \n" \
+               "       .align  2                       \n" \
+               "       /* fall thru */                 \n" \
+               ".previous")
+
+#define MD_SECTION_EPILOGUE(sect)                          \
+               __asm (                                     \
+               ".section "#sect",\"ax\",@progbits      \n" \
+               "       lds.l   @r15+, pr               \n" \
+               "       rts                             \n" \
+               "       nop                             \n" \
+               ".previous")
+
+#ifdef __LEADING_UNDERSCORE
+#define MD_INIT_SECTION_PROLOGUE MD_SECTION_PROLOGUE(.init, _init_fallthru)
+#define MD_FINI_SECTION_PROLOGUE MD_SECTION_PROLOGUE(.fini, _fini_fallthru)
+#else
+#define MD_INIT_SECTION_PROLOGUE MD_SECTION_PROLOGUE(.init, init_fallthru)
+#define MD_FINI_SECTION_PROLOGUE MD_SECTION_PROLOGUE(.fini, fini_fallthru)
+#endif
+
+#define MD_INIT_SECTION_EPILOGUE MD_SECTION_EPILOGUE(.init)
+#define MD_FINI_SECTION_EPILOGUE MD_SECTION_EPILOGUE(.fini)