From d0811445ef2fa0e8042da90e797c66781b93a966 Mon Sep 17 00:00:00 2001 From: gonzo Date: Sat, 3 May 2008 11:16:32 +0000 Subject: Bring C runtime bits for FreeBSD/mips from p4 mips2-jnpr branch. Approved by: cognet (mentor) --- lib/csu/mips/Makefile | 23 ++++++++++ lib/csu/mips/crt1.c | 116 ++++++++++++++++++++++++++++++++++++++++++++++++++ lib/csu/mips/crti.S | 37 ++++++++++++++++ lib/csu/mips/crtn.S | 15 +++++++ 4 files changed, 191 insertions(+) create mode 100644 lib/csu/mips/Makefile create mode 100644 lib/csu/mips/crt1.c create mode 100644 lib/csu/mips/crti.S create mode 100644 lib/csu/mips/crtn.S (limited to 'lib/csu') diff --git a/lib/csu/mips/Makefile b/lib/csu/mips/Makefile new file mode 100644 index 0000000..23954e8 --- /dev/null +++ b/lib/csu/mips/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/mips/crt1.c b/lib/csu/mips/crt1.c new file mode 100644 index 0000000..746cee2 --- /dev/null +++ b/lib/csu/mips/crt1.c @@ -0,0 +1,116 @@ +/*- + * Copyright 1996-1998 John D. Polstra. + * All rights reserved. + * 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. + * + * $FreeBSD$ + */ + +#include +__FBSDID("$FreeBSD$"); + +#ifndef __GNUC__ +#error "GCC is needed to compile this file" +#endif + +#include +#include "libc_private.h" +#include "crtbrand.c" + +struct Struct_Obj_Entry; +struct ps_strings; + +#ifndef NOSHARED +extern int _DYNAMIC; +#pragma weak _DYNAMIC +#endif + +extern void _init(void); +extern void _fini(void); +extern int main(int, char **, char **); + +#ifdef GCRT +extern void _mcleanup(void); +extern void monstartup(void *, void *); +extern int eprol; +extern int etext; +#endif + +char **environ; +const char *__progname = ""; + +void __gccmain(void) {} +void __main(void) {} + +/* The entry function. */ +void +__start(char **ap, + void (*cleanup)(void), /* from shared loader */ + struct Struct_Obj_Entry *obj, /* from shared loader */ + struct ps_strings *ps_strings) +{ + int argc; + char **argv; + char **env; + + argc = * (long *) ap; + argv = ap + 1; + env = ap + 2 + argc; + environ = env; + if(argc > 0 && argv[0] != NULL) { + const char *s; + __progname = argv[0]; + for (s = __progname; *s != '\0'; s++) + if (*s == '/') + __progname = s + 1; + } + +#ifndef NOSHARED + if (&_DYNAMIC != NULL) + atexit(cleanup); +#endif +#ifdef GCRT + atexit(_mcleanup); +#endif + atexit(_fini); +#ifdef GCRT + monstartup(&eprol, &etext); +#endif +#ifndef NOGPREL + _init(); +#endif + exit( main(argc, argv, env) ); +} + +#ifdef GCRT +__asm__(".text"); +__asm__("eprol:"); +__asm__(".previous"); +#endif diff --git a/lib/csu/mips/crti.S b/lib/csu/mips/crti.S new file mode 100644 index 0000000..1a0d23e --- /dev/null +++ b/lib/csu/mips/crti.S @@ -0,0 +1,37 @@ +#include +__FBSDID("$FreeBSD$"); + + .section .init,"ax",%progbits + .align 4 + .globl _init + .type _init,%function +_init: +#ifdef __ABICALLS__ + .set noreorder + .cpload $25 + .set reorder + subu sp, sp, 32 + .cprestore 16 + sw ra, 28(sp) + +#else + subu sp, sp, 32 + sw ra, 28(sp) +#endif + + .section .fini,"ax",%progbits + .align 4 + .globl _fini + .type _fini,%function +_fini: +#ifdef __ABICALLS__ + .set noreorder + .cpload $25 + .set reorder + subu sp, sp, 32 + .cprestore 16 + sw ra, 28(sp) +#else + subu sp, sp, 32 + sw ra, 28(sp) +#endif diff --git a/lib/csu/mips/crtn.S b/lib/csu/mips/crtn.S new file mode 100644 index 0000000..4803994 --- /dev/null +++ b/lib/csu/mips/crtn.S @@ -0,0 +1,15 @@ +#include +__FBSDID("$FreeBSD$"); + .section .init,"ax",%progbits + lw ra, 28(sp) + .set noreorder + j ra + addu sp, sp, 32 + .set reorder + + .section .fini,"ax",%progbits + lw ra, 28(sp) + .set noreorder + j ra + addu sp, sp, 32 + .set reorder -- cgit v1.1