From 443242732ce6e0f788e3344ec79f35187e1def61 Mon Sep 17 00:00:00 2001 From: nwhitehorn Date: Sat, 10 Jul 2010 03:45:55 +0000 Subject: C startup support for 64-bit PowerPC. Obtained from: projects/ppc64 --- lib/csu/powerpc64/Makefile | 23 +++++++++ lib/csu/powerpc64/crt1.c | 123 +++++++++++++++++++++++++++++++++++++++++++++ lib/csu/powerpc64/crti.S | 61 ++++++++++++++++++++++ lib/csu/powerpc64/crtn.S | 41 +++++++++++++++ 4 files changed, 248 insertions(+) create mode 100644 lib/csu/powerpc64/Makefile create mode 100644 lib/csu/powerpc64/crt1.c create mode 100644 lib/csu/powerpc64/crti.S create mode 100644 lib/csu/powerpc64/crtn.S (limited to 'lib/csu') diff --git a/lib/csu/powerpc64/Makefile b/lib/csu/powerpc64/Makefile new file mode 100644 index 0000000..23954e8 --- /dev/null +++ b/lib/csu/powerpc64/Makefile @@ -0,0 +1,23 @@ +# $FreeBSD$ + +.PATH: ${.CURDIR}/../common + +SRCS= crt1.c crti.S crtn.S +OBJS= ${SRCS:N*.h:R:S/$/.o/g} +OBJS+= gcrt1.o +CFLAGS+= -Wall -Wno-unused \ + -I${.CURDIR}/../common \ + -I${.CURDIR}/../../libc/include + +all: ${OBJS} + +CLEANFILES= ${OBJS} + +gcrt1.o: crt1.c + ${CC} ${CFLAGS} -DGCRT -c -o gcrt1.o ${.ALLSRC} + +realinstall: + ${INSTALL} -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \ + ${OBJS} ${DESTDIR}${LIBDIR} + +.include diff --git a/lib/csu/powerpc64/crt1.c b/lib/csu/powerpc64/crt1.c new file mode 100644 index 0000000..080691c --- /dev/null +++ b/lib/csu/powerpc64/crt1.c @@ -0,0 +1,123 @@ +/* LINTLIBRARY */ +/*- + * Copyright 2001 David E. O'Brien. + * All rights reserved. + * Copyright 1996-1998 John D. Polstra. + * All rights reserved. + * Copyright (c) 1997 Jason R. Thorpe. + * 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 for the + * FreeBSD Project. See http://www.freebsd.org/ for + * information about FreeBSD. + * This product includes software developed for the + * NetBSD Project. See http://www.netbsd.org/ for + * information about NetBSD. + * 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. + */ + +#ifndef lint +#ifndef __GNUC__ +#error "GCC is needed to compile this file" +#endif +#endif /* lint */ + +#include + +#include "libc_private.h" +#include "crtbrand.c" + +struct Struct_Obj_Entry; +struct ps_strings; + +extern int _DYNAMIC; +#pragma weak _DYNAMIC + +extern void _fini(void); +extern void _init(void); +extern int main(int, char **, char **); +extern void _start(int, char **, char **, const struct Struct_Obj_Entry *, + void (*)(void), struct ps_strings *); + +#ifdef GCRT +extern void _mcleanup(void); +extern void monstartup(void *, void *); +extern int eprol; +extern int etext; +#endif + +char **environ; +const char *__progname = ""; +struct ps_strings *__ps_strings; + +/* The entry function. */ +/* + * First 5 arguments are specified by the PowerPC SVR4 ABI. + * The last argument, ps_strings, is a BSD extension. + */ +/* ARGSUSED */ +void +_start(int argc, char **argv, char **env, + const struct Struct_Obj_Entry *obj __unused, void (*cleanup)(void), + struct ps_strings *ps_strings) +{ + const char *s; + + environ = env; + + if (argc > 0 && argv[0] != NULL) { + __progname = argv[0]; + for (s = __progname; *s != '\0'; s++) + if (*s == '/') + __progname = s + 1; + } + + if (ps_strings != (struct ps_strings *)0) + __ps_strings = ps_strings; + + if (&_DYNAMIC != NULL) + atexit(cleanup); + else + _init_tls(); + +#ifdef GCRT + atexit(_mcleanup); +#endif + atexit(_fini); +#ifdef GCRT + monstartup(&eprol, &etext); +#endif + _init(); + exit( main(argc, argv, env) ); +} + +#ifdef GCRT +__asm__(".text"); +__asm__("eprol:"); +__asm__(".previous"); +#endif + +__asm__(".ident\t\"$FreeBSD$\""); diff --git a/lib/csu/powerpc64/crti.S b/lib/csu/powerpc64/crti.S new file mode 100644 index 0000000..4118765 --- /dev/null +++ b/lib/csu/powerpc64/crti.S @@ -0,0 +1,61 @@ +/*- + * Copyright 2001 David E. O'Brien + * 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 ``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. + */ + + .section .init,"ax",@progbits + .align 2 + .globl _init + .section ".opd","aw" + .align 3 +_init: + .quad ._init,.TOC.@tocbase,0 + .previous + + .align 4 + .global ._init + .type ._init,@function +._init: + stdu 1,-48(1) + mflr 0 + std 0,64(1) + + .section .fini,"ax",@progbits + .align 2 + .globl _fini + .section ".opd","aw" + .align 3 +_fini: + .quad ._fini,.TOC.@tocbase,0 + .previous + + .align 4 + .global ._fini + .type ._fini,@function +._fini: + stdu 1,-48(1) + mflr 0 + std 0,64(1) + + .section .rodata +.ascii "$FreeBSD$\0" diff --git a/lib/csu/powerpc64/crtn.S b/lib/csu/powerpc64/crtn.S new file mode 100644 index 0000000..42ca083 --- /dev/null +++ b/lib/csu/powerpc64/crtn.S @@ -0,0 +1,41 @@ +/*- + * Copyright 2001 David E. O'Brien + * 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 ``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. + */ + + .section .init,"ax",@progbits + ld %r1,0(%r1) + ld 0,16(%r1) + mtlr 0 + blr + + + .section .fini,"ax",@progbits + ld %r1,0(%r1) + ld 0,16(%r1) + mtlr 0 + blr + + + .section .rodata +.ascii "$FreeBSD$\0" -- cgit v1.1