powerpc64 assembly for .init / .fini
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ross
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5f4bf87665
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5
lib/csu/powerpc64/Makefile
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5
lib/csu/powerpc64/Makefile
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# $NetBSD: Makefile,v 1.1 2006/06/30 22:49:50 ross Exp $
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CPPFLAGS+= -I- -I${.CURDIR}
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.include "${.CURDIR}/../common_elf/Makefile.inc"
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99
lib/csu/powerpc64/crt0.c
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lib/csu/powerpc64/crt0.c
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/ $NetBSD: crt0.c,v 1.1 2006/06/30 22:49:50 ross Exp $ */
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/*
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* Copyright (c) 1997 Jason R. Thorpe.
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* Copyright (c) 1995 Christopher G. Demetriou
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the
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* NetBSD Project. See http://www.NetBSD.org/ for
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* information about NetBSD.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>>
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*/
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#include "common.h"
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/*
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* Small Data Area designators. If not defined, will show up as being
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* at address zero.
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*/
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extern int _SDA_BASE_[];
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__weak_extern(_SDA_BASE_);
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extern int _SDA2_BASE_[];
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__weak_extern(_SDA2_BASE_);
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/*
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* First 5 arguments are specified by the PowerPC SVR4 ABI. The
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* last argument, ps_strings, is a NetBSD extension.
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*/
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void _start(int, char **, char **, const Obj_Entry *,
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void (*)(void), struct ps_strings *);
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void
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_start(int argc, char **argv, char **envp,
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const Obj_Entry *obj, /* from shared loader */
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void (*cleanup)(void), /* from shared loader */
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struct ps_strings *ps_strings) /* NetBSD extension */
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{
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char *namep;
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if ((namep = argv[0]) != NULL) { /* NULL ptr if argc = 0 */
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if ((__progname = _strrchr(namep, '/')) == NULL)
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__progname = namep;
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else
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__progname++;
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}
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environ = envp;
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if (ps_strings != (struct ps_strings *)0)
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__ps_strings = ps_strings;
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#ifdef DYNAMIC
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if (&_DYNAMIC != NULL)
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_rtld_setup(cleanup, obj);
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#endif
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#ifdef MCRT0
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atexit(_mcleanup);
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monstartup((u_long)&_eprol, (u_long)&_etext);
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#endif
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atexit(_fini);
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_init();
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exit(main(argc, argv, environ));
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}
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/*
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* NOTE: Leave the RCS ID _after_ __start(), in case it gets placed in .text.
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*/
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#if defined(LIBC_SCCS) && !defined(lint)
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__RCSID("$NetBSD: crt0.c,v 1.1 2006/06/30 22:49:50 ross Exp $");
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#endif /* LIBC_SCCS and not lint */
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#include "common.c"
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79
lib/csu/powerpc64/dot_init.h
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79
lib/csu/powerpc64/dot_init.h
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/* $NetBSD: dot_init.h,v 1.1 2006/06/30 22:49:50 ross Exp $ */
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/*-
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* Copyright (c) 2001, 2006 Ross Harvey
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
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#include <machine/asm.h>
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/*
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* These must be extern to avoid warnings ("declared static but never defined")
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* However, only the declaration is extern, the actually __asm() defines them
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* as static.
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*/
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#define INIT_FALLTHRU_DECL void init_fallthru(void)
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#define FINI_FALLTHRU_DECL void fini_fallthru(void)
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#define INIT_FALLTHRU() init_fallthru()
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#define FINI_FALLTHRU() fini_fallthru()
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#define MD_SECTION_PROLOGUE(sect, entry_pt) \
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__asm ( \
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".pushsection \".opd\",\"aw\" \n" \
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".align 3 \n" \
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#entry_pt": .quad ." #entry_pt ",.TOC.@tocbase,0\n" \
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".size " #entry_pt ",24 \n" \
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".type " #entry_pt ",@function \n" \
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".pushsection "#sect",\"ax\",@progbits \n" \
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"." #entry_pt": \n" \
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" stdu %r1,-48(%r1) \n" \
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" mflr %r0 \n" \
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" std %r0,16(%r1) \n" \
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" /* fall thru */ \n" \
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".popsection \n" \
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".popsection")
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#define MD_SECTION_EPILOGUE(sect) \
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__asm ( \
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".pushsection "#sect",\"ax\",@progbits \n" \
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" ld %r0,16(%r1) \n" \
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" mtlr %r0 \n" \
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" la %r1,48(%r1) \n" \
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" blr \n" \
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".popsection")
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#define MD_INIT_SECTION_PROLOGUE MD_SECTION_PROLOGUE(.init, init_fallthru)
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#define MD_FINI_SECTION_PROLOGUE MD_SECTION_PROLOGUE(.fini, fini_fallthru)
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#define MD_INIT_SECTION_EPILOGUE MD_SECTION_EPILOGUE(.init)
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#define MD_FINI_SECTION_EPILOGUE MD_SECTION_EPILOGUE(.fini)
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