diff options
Diffstat (limited to 'lib/csu')
-rw-r--r-- | lib/csu/sparc/Makefile | 26 | ||||
-rw-r--r-- | lib/csu/sparc/crt1.c | 103 | ||||
-rw-r--r-- | lib/csu/sparc/crtbegin.c | 77 | ||||
-rw-r--r-- | lib/csu/sparc/crtend.c | 31 |
4 files changed, 237 insertions, 0 deletions
diff --git a/lib/csu/sparc/Makefile b/lib/csu/sparc/Makefile new file mode 100644 index 0000000..2c101c3 --- /dev/null +++ b/lib/csu/sparc/Makefile @@ -0,0 +1,26 @@ +# +# $FreeBSD$ +# + +SRCS= crt1.c crtbegin.c crtend.c +OBJS= crt1.o crtbegin.o crtend.o +OBJS+= gcrt1.o +SOBJS= crtbegin.So crtend.So +CFLAGS+= -Wall -Wno-unused +NOMAN= true +NOPIC= true +NOPROFILE= true +INTERNALLIB= true + +all: ${OBJS} ${SOBJS} + +gcrt1.o: crt1.c + ${CC} ${CFLAGS} -DGCRT -c -o gcrt1.o ${.CURDIR}/crt1.c + +realinstall: +.for file in ${OBJS} ${SOBJS} + ${INSTALL} ${COPY} -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \ + ${file} ${DESTDIR}${LIBDIR}/${file:S/.So$/S.o/} +.endfor + +.include <bsd.lib.mk> diff --git a/lib/csu/sparc/crt1.c b/lib/csu/sparc/crt1.c new file mode 100644 index 0000000..095effc --- /dev/null +++ b/lib/csu/sparc/crt1.c @@ -0,0 +1,103 @@ +/*- + * 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. + * + * $FreeBSD$ + */ + +#ifndef __GNUC__ +#error "GCC is needed to compile this file" +#endif + +#include <stdlib.h> + +struct Struct_Obj_Entry; +struct ps_strings; + +#pragma weak _DYNAMIC +extern int _DYNAMIC; + +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; +char *__progname = ""; + +/* 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) { + char *s; + __progname = argv[0]; + for (s = __progname; *s != '\0'; s++) + if (*s == '/') + __progname = s + 1; + } + + 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 diff --git a/lib/csu/sparc/crtbegin.c b/lib/csu/sparc/crtbegin.c new file mode 100644 index 0000000..4cb2903 --- /dev/null +++ b/lib/csu/sparc/crtbegin.c @@ -0,0 +1,77 @@ +/*- + * Copyright 1996-1998 John D. Polstra. + * 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. + * + * $FreeBSD$ + */ + +typedef void (*fptr)(void); + +static fptr ctor_list[1] __attribute__((section(".ctors"))) = { (fptr) -1 }; +static fptr dtor_list[1] __attribute__((section(".dtors"))) = { (fptr) -1 }; + +/* Both do_ctors() and do_dtors() live in .text (the default) */ +static void +do_ctors(void) +{ + fptr *fpp; + + for(fpp = ctor_list + 1; *fpp != 0; ++fpp) + (**fpp)(); +} + +static void +do_dtors(void) +{ + fptr *fpp; + + for(fpp = dtor_list + 1; *fpp != 0; ++fpp) + ; + while(--fpp > dtor_list) + (**fpp)(); +} + +/* + * On very large programs, it is possible to get a relocation overflow + * of the 21-bit BSR displacements. It is particularly likely for the + * calls from _init() and _fini(), because they are in separate sections. + * Avoid the problem by forcing indirect calls. + */ +static void (*p_do_ctors)(void) = do_ctors; +static void (*p_do_dtors)(void) = do_dtors; + +extern void _init(void) __attribute__((section(".init"))); + +void +_init(void) +{ + (*p_do_ctors)(); +} + +extern void _fini(void) __attribute__((section(".fini"))); + +void +_fini(void) +{ + (*p_do_dtors)(); +} diff --git a/lib/csu/sparc/crtend.c b/lib/csu/sparc/crtend.c new file mode 100644 index 0000000..d6228a3 --- /dev/null +++ b/lib/csu/sparc/crtend.c @@ -0,0 +1,31 @@ +/*- + * Copyright 1996-1998 John D. Polstra. + * 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. + * + * $FreeBSD$ + */ + +typedef void (*fptr)(void); + +static fptr ctor_end[1] __attribute__((section(".ctors"))) = { 0 }; +static fptr dtor_end[1] __attribute__((section(".dtors"))) = { 0 }; |