diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/csu/arm/Makefile | 23 | ||||
| -rw-r--r-- | lib/csu/arm/crt1.c | 137 | ||||
| -rw-r--r-- | lib/csu/arm/crti.S | 5 | ||||
| -rw-r--r-- | lib/csu/arm/crtn.S | 4 |
4 files changed, 169 insertions, 0 deletions
diff --git a/lib/csu/arm/Makefile b/lib/csu/arm/Makefile new file mode 100644 index 0000000..23954e8 --- /dev/null +++ b/lib/csu/arm/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 <bsd.lib.mk> diff --git a/lib/csu/arm/crt1.c b/lib/csu/arm/crt1.c new file mode 100644 index 0000000..706aaee --- /dev/null +++ b/lib/csu/arm/crt1.c @@ -0,0 +1,137 @@ +/* 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 <stdlib.h> + +#include "libc_private.h" +#include "crtbrand.c" +#include <machine/asm.h> + +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. */ +__asm(" .text \n" +" .align 0 \n" +" .globl _start \n" +" _start: \n" +" mov r5, r2 /* cleanup */ \n" +" mov r4, r1 /* obj_main */ \n" +" mov r3, r0 /* ps_strings */ \n" +" /* Get argc, argv, and envp from stack */ \n" +" ldr r0, [sp, #0x0000] \n" +" add r1, sp, #0x0004 \n" +" add r2, r1, r0, lsl #2 \n" +" add r2, r2, #0x0004 \n" +" /* Ensure the stack is properly aligned before calling C code. */\n" +" bic sp, sp, #7 \n" +" sub sp, sp, #8 \n" +" str r5, [sp, #4] \n" +" str r4, [sp, #0] \n" +"\n" +" b __start "); +/* 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); + +#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/arm/crti.S b/lib/csu/arm/crti.S new file mode 100644 index 0000000..2261c37 --- /dev/null +++ b/lib/csu/arm/crti.S @@ -0,0 +1,5 @@ +#include <machine/asm.h> +__FBSDID("$FreeBSD$"); + +ENTRY(_init) +ENTRY(_fini) diff --git a/lib/csu/arm/crtn.S b/lib/csu/arm/crtn.S new file mode 100644 index 0000000..2785e42 --- /dev/null +++ b/lib/csu/arm/crtn.S @@ -0,0 +1,4 @@ +#include <machine/asm.h> +__FBSDID("$FreeBSD$"); +.section init +.section fini |
