things for amd64; from art@

6 files changed, 500 insertions, 0 deletions

diff --git a/lib/csu/amd64/Makefile b/lib/csu/amd64/Makefile
new file mode 100644
index 00000000000..ddbe9a140f7
--- /dev/null
+++ b/lib/csu/amd64/Makefile
@@ -0,0 +1,61 @@
+#	$OpenBSD: Makefile,v 1.1 2004/01/28 01:46:17 mickey Exp $
+
+CFLAGS+=	-DLIBC_SCCS -fno-omit-frame-pointer
+OBJS=		crt0.o gcrt0.o crtbegin.o crtend.o crtbeginS.o crtendS.o
+SRCS=		crt0.c crtbegin.c crtbeginS.c crtend.c crtendS.c
+
+ELFDIR=		${.CURDIR}/../common_elf
+.PATH:		${ELFDIR}
+CFLAGS+=	-I${ELFDIR} -I${.CURDIR}
+
+PICFLAG?=-fpic
+
+all: ${OBJS}
+
+crt0.o: crt0.c
+	@echo ${COMPILE.c} -DCRT0 ${.CURDIR}/crt0.c -o ${.TARGET}
+	@${COMPILE.c} -DCRT0 ${.CURDIR}/crt0.c -o ${.TARGET}.o
+	@${LD} -x -r -o ${.TARGET} ${.TARGET}.o
+	@rm -f ${.TARGET}.o
+
+gcrt0.o: crt0.c
+	@echo ${COMPILE.c} -DMCRT0 ${.CURDIR}/crt0.c -o ${.TARGET}
+	@${COMPILE.c} -DMCRT0 ${.CURDIR}/crt0.c -o ${.TARGET}.o
+	@${LD} -x -r -o ${.TARGET} ${.TARGET}.o
+	@rm -f ${.TARGET}.o
+
+crtbegin.o: crtbegin.c
+	@echo ${COMPILE.c} ${ELFDIR}/crtbegin.c -o ${.TARGET}
+	@${COMPILE.c} ${ELFDIR}/crtbegin.c -o ${.TARGET}.o
+	@${LD} -x -r -o ${.TARGET} ${.TARGET}.o
+	@rm -f ${.TARGET}.o
+
+crtbeginS.o: crtbeginS.c
+	@echo ${COMPILE.c} ${PICFLAG} ${ELFDIR}/crtbeginS.c -o ${.TARGET}
+	@${COMPILE.c} ${PICFLAG} ${ELFDIR}/crtbeginS.c -o ${.TARGET}.o
+	@${LD} -x -r -o ${.TARGET} ${.TARGET}.o
+	@rm -f ${.TARGET}.o
+
+crtend.o: crtend.c
+	@echo ${COMPILE.c} ${ELFDIR}/crtend.c -o ${.TARGET}
+	@${COMPILE.c} ${ELFDIR}/crtend.c -o ${.TARGET}.o
+	@${LD} -x -r -o ${.TARGET} ${.TARGET}.o
+	@rm -f ${.TARGET}.o
+
+crtendS.o: crtendS.c
+	@echo ${COMPILE.c} ${PICFLAG} ${ELFDIR}/crtendS.c -o ${.TARGET}
+	@${COMPILE.c} ${PICFLAG} ${ELFDIR}/crtendS.c -o ${.TARGET}.o
+	@${LD} -x -r -o ${.TARGET} ${.TARGET}.o
+	@rm -f ${.TARGET}.o
+
+realinstall:
+	${INSTALL} ${INSTALL_COPY} -o ${BINOWN} -g ${BINGRP} -m 444 ${OBJS} \
+	    ${DESTDIR}/usr/lib
+
+afterdepend: .depend
+	@(TMP=/tmp/_depend$$$$; \
+	    sed -e 's/^\([^\.]*\).o[ ]*:/\1.o g\1.o:/' \
+	    < .depend > $$TMP; \
+	mv $$TMP .depend)
+
+.include <bsd.prog.mk>
diff --git a/lib/csu/amd64/crt0.c b/lib/csu/amd64/crt0.c
new file mode 100644
index 00000000000..b948fe048de
--- /dev/null
+++ b/lib/csu/amd64/crt0.c
@@ -0,0 +1,128 @@
+/*	$OpenBSD: crt0.c,v 1.1 2004/01/28 01:46:17 mickey Exp $	*/
+/*
+ * Copyright (c) 1995 Christopher G. Demetriou
+ * 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 Christopher G. Demetriou
+ *	for the NetBSD Project.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char rcsid[] = "$OpenBSD: crt0.c,v 1.1 2004/01/28 01:46:17 mickey Exp $";
+#endif /* LIBC_SCCS and not lint */
+
+#include <sys/param.h>
+#include <stdlib.h>
+
+static char	*_strrchr(char *, char);
+
+char	**environ;
+char	*__progname = "";
+
+char __progname_storage[NAME_MAX+1];
+
+#ifdef MCRT0
+extern void	monstartup(u_long, u_long);
+extern void	_mcleanup(void);
+extern unsigned char _etext, _eprol;
+#endif /* MCRT0 */
+
+__asm(" .text				;\
+	.align	8			;\
+	.globl	__start			;\
+	.globl	_start			;\
+_start:					;\
+__start:				;\
+	movq	%rbx,%r9		;\
+	movq	%rcx,%r8		;\
+	movq	%rdx,%rcx		;\
+	movq	(%rsp),%rdi		;\
+	leaq	16(%rsp,%rdi,8),%rdx	;\
+	leaq	8(%rsp),%rsi		;\
+	subq	$8,%rsp			;\
+	andq	$~15,%rsp		;\
+	addq	$8,%rsp			;\
+	jmp	___start		;\
+");
+
+void
+___start(argc, argv, envp, cleanup, obj, ps_strings)
+	int argc;
+	char **argv;
+	char ** envp;
+	void (*cleanup)(void);			/* from shared loader */
+	const void *obj;			/* from shared loader */
+	struct ps_strings *ps_strings;
+{
+	char *namep;
+	register struct kframe *kfp;
+	char *s;
+
+        environ = envp;
+
+	if ((namep = argv[0]) != NULL) {	/* NULL ptr if argc = 0 */
+		if ((__progname = _strrchr(namep, '/')) == NULL)
+			__progname = namep;
+		else
+			++__progname;
+		for (s = __progname_storage; *__progname &&
+		    s < &__progname_storage[sizeof __progname_storage - 1]; )
+			*s++ = *__progname++;
+		*s = '\0';
+		__progname = __progname_storage;
+	}
+
+#ifdef MCRT0
+	atexit(_mcleanup);
+	monstartup((u_long)&_eprol, (u_long)&_etext);
+#endif
+
+	__init();
+
+	exit(main(argc, argv, environ));
+}
+
+
+static char *
+_strrchr(p, ch)
+register char *p, ch;
+{
+	register char *save;
+
+	for (save = NULL;; ++p) {
+		if (*p == ch)
+			save = (char *)p;
+		if (!*p)
+			return(save);
+	}
+/* NOTREACHED */
+}
+
+#ifdef MCRT0
+asm ("  .text");
+asm ("_eprol:");
+#endif
+
diff --git a/lib/csu/amd64/md_init.h b/lib/csu/amd64/md_init.h
new file mode 100644
index 00000000000..243091f7255
--- /dev/null
+++ b/lib/csu/amd64/md_init.h
@@ -0,0 +1,61 @@
+/* $OpenBSD: md_init.h,v 1.1 2004/01/28 01:46:17 mickey 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.
+ */
+
+#define MD_SECT_CALL_FUNC(section, func) \
+	__asm (".section "#section", \"ax\"\n"	\
+	"	call " #func "\n"		\
+	"	.previous")
+
+/*
+ * Align is after because we want the function to start at the first
+ * address of the section, but overall we want the section to be
+ * aligned by the align amount.
+ */
+#define MD_SECTION_PROLOGUE(sect, entry_pt)	\
+	__asm (					\
+	".section "#sect",\"ax\",@progbits	\n" \
+	"	.globl " #entry_pt "		\n" \
+	"	.type " #entry_pt ",@function	\n" \
+	#entry_pt":				\n" \
+	"	.align 16			\n" \
+	"	/* fall thru */			\n" \
+	"	.previous")
+
+
+#define MD_SECTION_EPILOGUE(sect)		\
+	__asm (					\
+	".section "#sect",\"ax\",@progbits	\n" \
+	"	ret				\n" \
+	"	.previous")
diff --git a/lib/csu/x86_64/Makefile b/lib/csu/x86_64/Makefile
new file mode 100644
index 00000000000..ddbe9a140f7
--- /dev/null
+++ b/lib/csu/x86_64/Makefile
@@ -0,0 +1,61 @@
+#	$OpenBSD: Makefile,v 1.1 2004/01/28 01:46:17 mickey Exp $
+
+CFLAGS+=	-DLIBC_SCCS -fno-omit-frame-pointer
+OBJS=		crt0.o gcrt0.o crtbegin.o crtend.o crtbeginS.o crtendS.o
+SRCS=		crt0.c crtbegin.c crtbeginS.c crtend.c crtendS.c
+
+ELFDIR=		${.CURDIR}/../common_elf
+.PATH:		${ELFDIR}
+CFLAGS+=	-I${ELFDIR} -I${.CURDIR}
+
+PICFLAG?=-fpic
+
+all: ${OBJS}
+
+crt0.o: crt0.c
+	@echo ${COMPILE.c} -DCRT0 ${.CURDIR}/crt0.c -o ${.TARGET}
+	@${COMPILE.c} -DCRT0 ${.CURDIR}/crt0.c -o ${.TARGET}.o
+	@${LD} -x -r -o ${.TARGET} ${.TARGET}.o
+	@rm -f ${.TARGET}.o
+
+gcrt0.o: crt0.c
+	@echo ${COMPILE.c} -DMCRT0 ${.CURDIR}/crt0.c -o ${.TARGET}
+	@${COMPILE.c} -DMCRT0 ${.CURDIR}/crt0.c -o ${.TARGET}.o
+	@${LD} -x -r -o ${.TARGET} ${.TARGET}.o
+	@rm -f ${.TARGET}.o
+
+crtbegin.o: crtbegin.c
+	@echo ${COMPILE.c} ${ELFDIR}/crtbegin.c -o ${.TARGET}
+	@${COMPILE.c} ${ELFDIR}/crtbegin.c -o ${.TARGET}.o
+	@${LD} -x -r -o ${.TARGET} ${.TARGET}.o
+	@rm -f ${.TARGET}.o
+
+crtbeginS.o: crtbeginS.c
+	@echo ${COMPILE.c} ${PICFLAG} ${ELFDIR}/crtbeginS.c -o ${.TARGET}
+	@${COMPILE.c} ${PICFLAG} ${ELFDIR}/crtbeginS.c -o ${.TARGET}.o
+	@${LD} -x -r -o ${.TARGET} ${.TARGET}.o
+	@rm -f ${.TARGET}.o
+
+crtend.o: crtend.c
+	@echo ${COMPILE.c} ${ELFDIR}/crtend.c -o ${.TARGET}
+	@${COMPILE.c} ${ELFDIR}/crtend.c -o ${.TARGET}.o
+	@${LD} -x -r -o ${.TARGET} ${.TARGET}.o
+	@rm -f ${.TARGET}.o
+
+crtendS.o: crtendS.c
+	@echo ${COMPILE.c} ${PICFLAG} ${ELFDIR}/crtendS.c -o ${.TARGET}
+	@${COMPILE.c} ${PICFLAG} ${ELFDIR}/crtendS.c -o ${.TARGET}.o
+	@${LD} -x -r -o ${.TARGET} ${.TARGET}.o
+	@rm -f ${.TARGET}.o
+
+realinstall:
+	${INSTALL} ${INSTALL_COPY} -o ${BINOWN} -g ${BINGRP} -m 444 ${OBJS} \
+	    ${DESTDIR}/usr/lib
+
+afterdepend: .depend
+	@(TMP=/tmp/_depend$$$$; \
+	    sed -e 's/^\([^\.]*\).o[ ]*:/\1.o g\1.o:/' \
+	    < .depend > $$TMP; \
+	mv $$TMP .depend)
+
+.include <bsd.prog.mk>
diff --git a/lib/csu/x86_64/crt0.c b/lib/csu/x86_64/crt0.c
new file mode 100644
index 00000000000..b948fe048de
--- /dev/null
+++ b/lib/csu/x86_64/crt0.c
@@ -0,0 +1,128 @@
+/*	$OpenBSD: crt0.c,v 1.1 2004/01/28 01:46:17 mickey Exp $	*/
+/*
+ * Copyright (c) 1995 Christopher G. Demetriou
+ * 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 Christopher G. Demetriou
+ *	for the NetBSD Project.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char rcsid[] = "$OpenBSD: crt0.c,v 1.1 2004/01/28 01:46:17 mickey Exp $";
+#endif /* LIBC_SCCS and not lint */
+
+#include <sys/param.h>
+#include <stdlib.h>
+
+static char	*_strrchr(char *, char);
+
+char	**environ;
+char	*__progname = "";
+
+char __progname_storage[NAME_MAX+1];
+
+#ifdef MCRT0
+extern void	monstartup(u_long, u_long);
+extern void	_mcleanup(void);
+extern unsigned char _etext, _eprol;
+#endif /* MCRT0 */
+
+__asm(" .text				;\
+	.align	8			;\
+	.globl	__start			;\
+	.globl	_start			;\
+_start:					;\
+__start:				;\
+	movq	%rbx,%r9		;\
+	movq	%rcx,%r8		;\
+	movq	%rdx,%rcx		;\
+	movq	(%rsp),%rdi		;\
+	leaq	16(%rsp,%rdi,8),%rdx	;\
+	leaq	8(%rsp),%rsi		;\
+	subq	$8,%rsp			;\
+	andq	$~15,%rsp		;\
+	addq	$8,%rsp			;\
+	jmp	___start		;\
+");
+
+void
+___start(argc, argv, envp, cleanup, obj, ps_strings)
+	int argc;
+	char **argv;
+	char ** envp;
+	void (*cleanup)(void);			/* from shared loader */
+	const void *obj;			/* from shared loader */
+	struct ps_strings *ps_strings;
+{
+	char *namep;
+	register struct kframe *kfp;
+	char *s;
+
+        environ = envp;
+
+	if ((namep = argv[0]) != NULL) {	/* NULL ptr if argc = 0 */
+		if ((__progname = _strrchr(namep, '/')) == NULL)
+			__progname = namep;
+		else
+			++__progname;
+		for (s = __progname_storage; *__progname &&
+		    s < &__progname_storage[sizeof __progname_storage - 1]; )
+			*s++ = *__progname++;
+		*s = '\0';
+		__progname = __progname_storage;
+	}
+
+#ifdef MCRT0
+	atexit(_mcleanup);
+	monstartup((u_long)&_eprol, (u_long)&_etext);
+#endif
+
+	__init();
+
+	exit(main(argc, argv, environ));
+}
+
+
+static char *
+_strrchr(p, ch)
+register char *p, ch;
+{
+	register char *save;
+
+	for (save = NULL;; ++p) {
+		if (*p == ch)
+			save = (char *)p;
+		if (!*p)
+			return(save);
+	}
+/* NOTREACHED */
+}
+
+#ifdef MCRT0
+asm ("  .text");
+asm ("_eprol:");
+#endif
+
diff --git a/lib/csu/x86_64/md_init.h b/lib/csu/x86_64/md_init.h
new file mode 100644
index 00000000000..243091f7255
--- /dev/null
+++ b/lib/csu/x86_64/md_init.h
@@ -0,0 +1,61 @@
+/* $OpenBSD: md_init.h,v 1.1 2004/01/28 01:46:17 mickey 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.
+ */
+
+#define MD_SECT_CALL_FUNC(section, func) \
+	__asm (".section "#section", \"ax\"\n"	\
+	"	call " #func "\n"		\
+	"	.previous")
+
+/*
+ * Align is after because we want the function to start at the first
+ * address of the section, but overall we want the section to be
+ * aligned by the align amount.
+ */
+#define MD_SECTION_PROLOGUE(sect, entry_pt)	\
+	__asm (					\
+	".section "#sect",\"ax\",@progbits	\n" \
+	"	.globl " #entry_pt "		\n" \
+	"	.type " #entry_pt ",@function	\n" \
+	#entry_pt":				\n" \
+	"	.align 16			\n" \
+	"	/* fall thru */			\n" \
+	"	.previous")
+
+
+#define MD_SECTION_EPILOGUE(sect)		\
+	__asm (					\
+	".section "#sect",\"ax\",@progbits	\n" \
+	"	ret				\n" \
+	"	.previous")