mirror of
https://github.com/freebsd/freebsd-src.git
synced 2024-12-03 08:22:44 +00:00
Trash startup sources from NetBSD in favour of jdp's FreeBSD source
now that has been committed. The makefile is derived from the i386-elf version, modified to pick up most of the source (except crt1.c) from i386-elf. With minor changes to i386-elf/crt1.c, this directory can be combined with i386-elf to be a single csu/elf directory for all seasons.
This commit is contained in:
John Birrell
parent
fbb2bc058d
commit
b843e53a97
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=34454
@ -1,41 +1,23 @@
|
||||
# $Id$
|
||||
# From: NetBSD: Makefile,v 1.15 1997/10/24 21:18:25 thorpej Exp
|
||||
#
|
||||
# $Id: Makefile,v 1.1.1.1 1998/03/07 20:27:10 jdp Exp $
|
||||
#
|
||||
|
||||
CPPFLAGS+= -DLIBC_SCCS -DPIC -DDYNAMIC -DELFSIZE=64
|
||||
CPPFLAGS+= -I${.CURDIR}/../../../libexec/ld.elf_so
|
||||
COPT+= -fPIC
|
||||
.PATH: ${.CURDIR}/../i386-elf
|
||||
SRCS= crt1.c crtbegin.c crtend.c crti.S crtn.S
|
||||
OBJS= ${SRCS:N*.h:R:S/$/.o/g}
|
||||
SOBJS= crtbegin.so crtend.so
|
||||
CFLAGS+= -Wall -Wno-unused
|
||||
NOMAN= true
|
||||
NOPIC= true
|
||||
NOPROFILE= true
|
||||
INTERNALLIB= true
|
||||
|
||||
OBJS= crt0.o gcrt0.o crtbegin.o crtend.o
|
||||
all: ${OBJS} ${SOBJS}
|
||||
|
||||
CLEANFILES+= core a.out
|
||||
realinstall:
|
||||
.for file in ${OBJS} ${SOBJS}
|
||||
${INSTALL} ${COPY} -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
|
||||
${file} ${DESTDIR}${LIBDIR}/${file:S/.so$/S.o/}
|
||||
.endfor
|
||||
|
||||
all: ${OBJS}
|
||||
|
||||
crt0.o: crt0.c
|
||||
${CC} -DCRT0 -c ${.CURDIR}/crt0.c -o ${.TARGET}.o
|
||||
@${LD} -x -r -o ${.TARGET} ${.TARGET}.o
|
||||
@rm -f ${.TARGET}.o
|
||||
|
||||
gcrt0.o: crt0.c
|
||||
${CC} -DMCRT0 -c ${.CURDIR}/crt0.c -o ${.TARGET}.o
|
||||
@${LD} -x -r -o ${.TARGET} ${.TARGET}.o
|
||||
@rm -f ${.TARGET}.o
|
||||
|
||||
crtbegin.o: crtbegin.c
|
||||
${CC} -c ${.CURDIR}/crtbegin.c -o ${.TARGET}.o
|
||||
@${LD} -x -r -o ${.TARGET} ${.TARGET}.o
|
||||
@rm -f ${.TARGET}.o
|
||||
|
||||
crtend.o: crtend.c
|
||||
${CC} -c ${.CURDIR}/crtend.c -o ${.TARGET}.o
|
||||
@${LD} -x -r -o ${.TARGET} ${.TARGET}.o
|
||||
@rm -f ${.TARGET}.o
|
||||
|
||||
install:
|
||||
${INSTALL} ${COPY} -o ${BINOWN} -g ${BINGRP} -m 444 ${OBJS} \
|
||||
${DESTDIR}/usr/lib
|
||||
rm -f ${DESTDIR}/usr/lib/crtbeginS.o ${DESTDIR}/usr/lib/crtendS.o
|
||||
ln ${DESTDIR}/usr/lib/crtbegin.o ${DESTDIR}/usr/lib/crtbeginS.o
|
||||
ln ${DESTDIR}/usr/lib/crtend.o ${DESTDIR}/usr/lib/crtendS.o
|
||||
|
||||
.include <bsd.prog.mk>
|
||||
.include <bsd.lib.mk>
|
||||
|
||||
@ -1,243 +0,0 @@
|
||||
/* $Id$ */
|
||||
/* From: NetBSD: crt0.c,v 1.11 1997/10/20 20:41:09 thorpej Exp */
|
||||
|
||||
/*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#ifdef ECOFF_COMPAT
|
||||
#undef DYNAMIC
|
||||
#endif
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/exec.h>
|
||||
#include <sys/syscall.h>
|
||||
#include <vm/vm.h>
|
||||
|
||||
#include <stdlib.h>
|
||||
#ifdef DYNAMIC
|
||||
#include <dlfcn.h>
|
||||
#include "rtld.h"
|
||||
#else
|
||||
typedef void Obj_Entry;
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Lots of the chunks of this file cobbled together from pieces of
|
||||
* other NetBSD crt files, including the common code.
|
||||
*/
|
||||
|
||||
extern int __syscall __P((int, ...));
|
||||
#define _exit(v) __syscall(SYS_exit, (v))
|
||||
#define write(fd, s, n) __syscall(SYS_write, (fd), (s), (n))
|
||||
|
||||
#define _FATAL(str) \
|
||||
do { \
|
||||
write(2, str, sizeof(str)); \
|
||||
_exit(1); \
|
||||
} while (0)
|
||||
|
||||
static char *_strrchr __P((char *, char));
|
||||
|
||||
|
||||
char **environ;
|
||||
char *__progname = "";
|
||||
struct ps_strings *__ps_strings = 0;
|
||||
|
||||
#ifndef ECOFF_COMPAT
|
||||
extern void __init __P((void));
|
||||
extern void __fini __P((void));
|
||||
#endif /* ECOFF_COMPAT */
|
||||
|
||||
#ifdef DYNAMIC
|
||||
void rtld_setup __P((void (*)(void), const Obj_Entry *obj));
|
||||
|
||||
const Obj_Entry *__mainprog_obj;
|
||||
|
||||
/*
|
||||
* Arrange for _DYNAMIC to be weak and undefined (and therefore to show up
|
||||
* as being at address zero, unless something else defines it). That way,
|
||||
* if we happen to be compiling without -static but with without any
|
||||
* shared libs present, things will still work.
|
||||
*/
|
||||
asm(".weak _DYNAMIC");
|
||||
extern int _DYNAMIC;
|
||||
#endif /* DYNAMIC */
|
||||
|
||||
#ifdef MCRT0
|
||||
extern void monstartup __P((u_long, u_long));
|
||||
extern void _mcleanup __P((void));
|
||||
extern unsigned char _etext, _eprol;
|
||||
#endif /* MCRT0 */
|
||||
|
||||
void __start __P((char **, void (*cleanup) __P((void)), const Obj_Entry *,
|
||||
struct ps_strings *));
|
||||
int main __P((int, char **, char **));
|
||||
|
||||
void
|
||||
__start(sp, cleanup, obj, ps_strings)
|
||||
char **sp;
|
||||
void (*cleanup) __P((void)); /* from shared loader */
|
||||
const Obj_Entry *obj; /* from shared loader */
|
||||
struct ps_strings *ps_strings;
|
||||
{
|
||||
long argc;
|
||||
char **argv, *namep;
|
||||
|
||||
argc = *(long *)sp;
|
||||
argv = sp + 1;
|
||||
environ = sp + 2 + argc; /* 2: argc + NULL ending argv */
|
||||
|
||||
if ((namep = argv[0]) != NULL) { /* NULL ptr if argc = 0 */
|
||||
if ((__progname = _strrchr(namep, '/')) == NULL)
|
||||
__progname = namep;
|
||||
else
|
||||
__progname++;
|
||||
}
|
||||
|
||||
if (ps_strings != (struct ps_strings *)0 &&
|
||||
ps_strings != (struct ps_strings *)0xbabefacedeadbeef)
|
||||
__ps_strings = ps_strings;
|
||||
|
||||
#ifdef DYNAMIC
|
||||
if (&_DYNAMIC != NULL)
|
||||
rtld_setup(cleanup, obj);
|
||||
#endif
|
||||
|
||||
#ifdef MCRT0
|
||||
atexit(_mcleanup);
|
||||
monstartup((u_long)&_eprol, (u_long)&_etext);
|
||||
#endif
|
||||
|
||||
#ifndef ECOFF_COMPAT
|
||||
atexit(__fini);
|
||||
__init();
|
||||
#endif /* ECOFF_COMPAT */
|
||||
|
||||
exit(main(argc, argv, environ));
|
||||
}
|
||||
|
||||
/*
|
||||
* NOTE: Leave the RCS ID _after_ __start(), in case it gets placed in .text.
|
||||
*/
|
||||
#if defined(LIBC_SCCS) && !defined(lint)
|
||||
__RCSID("$NetBSD: crt0.c,v 1.11 1997/10/20 20:41:09 thorpej Exp $");
|
||||
#endif /* LIBC_SCCS and not lint */
|
||||
|
||||
static char *
|
||||
_strrchr(p, ch)
|
||||
register char *p, ch;
|
||||
{
|
||||
register char *save;
|
||||
|
||||
for (save = NULL;; ++p) {
|
||||
if (*p == ch)
|
||||
save = (char *)p;
|
||||
if (!*p)
|
||||
return(save);
|
||||
}
|
||||
/* NOTREACHED */
|
||||
}
|
||||
|
||||
#ifdef MCRT0
|
||||
asm (" .text");
|
||||
asm ("_eprol:");
|
||||
#endif
|
||||
|
||||
#ifdef DYNAMIC
|
||||
void
|
||||
rtld_setup(cleanup, obj)
|
||||
void (*cleanup) __P((void));
|
||||
const Obj_Entry *obj;
|
||||
{
|
||||
|
||||
if ((obj == NULL) || (obj->magic != RTLD_MAGIC))
|
||||
_FATAL("Corrupt Obj_Entry pointer in GOT");
|
||||
if (obj->version != RTLD_VERSION)
|
||||
_FATAL("Dynamic linker version mismatch");
|
||||
|
||||
__mainprog_obj = obj;
|
||||
atexit(cleanup);
|
||||
}
|
||||
|
||||
void *
|
||||
dlopen(name, mode)
|
||||
const char *name;
|
||||
int mode;
|
||||
{
|
||||
|
||||
if (__mainprog_obj == NULL)
|
||||
return NULL;
|
||||
return (__mainprog_obj->dlopen)(name, mode);
|
||||
}
|
||||
|
||||
int
|
||||
dlclose(fd)
|
||||
void *fd;
|
||||
{
|
||||
|
||||
if (__mainprog_obj == NULL)
|
||||
return -1;
|
||||
return (__mainprog_obj->dlclose)(fd);
|
||||
}
|
||||
|
||||
void *
|
||||
dlsym(fd, name)
|
||||
void *fd;
|
||||
const char *name;
|
||||
{
|
||||
|
||||
if (__mainprog_obj == NULL)
|
||||
return NULL;
|
||||
return (__mainprog_obj->dlsym)(fd, name);
|
||||
}
|
||||
|
||||
#if 0 /* not supported for ELF shlibs, apparently */
|
||||
int
|
||||
dlctl(fd, cmd, arg)
|
||||
void *fd, *arg;
|
||||
int cmd;
|
||||
{
|
||||
|
||||
if (__mainprog_obj == NULL)
|
||||
return -1;
|
||||
return (__mainprog_obj->dlctl)(fd, cmd, arg);
|
||||
}
|
||||
#endif
|
||||
|
||||
char *
|
||||
dlerror()
|
||||
{
|
||||
|
||||
if (__mainprog_obj == NULL)
|
||||
return NULL;
|
||||
return (__mainprog_obj->dlerror)();
|
||||
}
|
||||
#endif /* DYNAMIC */
|
||||
@ -1,120 +0,0 @@
|
||||
/* $Id$ */
|
||||
/* From: NetBSD: crtbegin.c,v 1.2 1997/03/21 05:47:28 cgd Exp */
|
||||
|
||||
/*
|
||||
* Copyright (c) 1993 Paul Kranenburg
|
||||
* 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 Paul Kranenburg.
|
||||
* 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 ECOFF_COMPAT
|
||||
|
||||
/*
|
||||
* XXX EVENTUALLY SHOULD BE MERGED BACK WITH c++rt0.c
|
||||
*/
|
||||
|
||||
/*
|
||||
* Run-time module which handles constructors and destructors,
|
||||
* and NetBSD identification.
|
||||
*
|
||||
* The linker constructs the following arrays of pointers to global
|
||||
* constructors and destructors. The first element contains the
|
||||
* number of pointers in each or -1 to indicate that the run-time
|
||||
* code should figure out how many there are. The tables are also
|
||||
* null-terminated.
|
||||
*/
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/exec.h>
|
||||
#include <sys/exec_elf.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
/* #include "sysident.h" */
|
||||
|
||||
static void (*__CTOR_LIST__[1]) __P((void))
|
||||
__attribute__((section(".ctors"))) = { (void *)-1 }; /* XXX */
|
||||
static void (*__DTOR_LIST__[1]) __P((void))
|
||||
__attribute__((section(".dtors"))) = { (void *)-1 }; /* XXX */
|
||||
|
||||
static void __dtors __P((void));
|
||||
static void __ctors __P((void));
|
||||
|
||||
static void
|
||||
__dtors()
|
||||
{
|
||||
unsigned long i = (unsigned long) __DTOR_LIST__[0];
|
||||
void (**p)(void);
|
||||
|
||||
if (i == -1) {
|
||||
for (i = 1; __DTOR_LIST__[i] != NULL; i++)
|
||||
;
|
||||
i--;
|
||||
}
|
||||
p = __DTOR_LIST__ + i;
|
||||
while (i--)
|
||||
(**p--)();
|
||||
}
|
||||
|
||||
static void
|
||||
__ctors()
|
||||
{
|
||||
void (**p)(void) = __CTOR_LIST__ + 1;
|
||||
|
||||
while (*p)
|
||||
(**p++)();
|
||||
}
|
||||
|
||||
extern void __init(void) __attribute__((section(".init")));
|
||||
|
||||
void
|
||||
__init()
|
||||
{
|
||||
static int initialized = 0;
|
||||
|
||||
/*
|
||||
* Call global constructors.
|
||||
* Arrange to call global destructors at exit.
|
||||
*/
|
||||
if (!initialized) {
|
||||
initialized = 1;
|
||||
__ctors();
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
extern void __fini(void) __attribute__((section(".fini")));
|
||||
|
||||
void
|
||||
__fini()
|
||||
{
|
||||
/*
|
||||
* Call global destructors.
|
||||
*/
|
||||
__dtors();
|
||||
}
|
||||
|
||||
#endif /* !ECOFF_COMPAT */
|
||||
@ -1,15 +0,0 @@
|
||||
/* $Id$ */
|
||||
/* From: NetBSD: crtend.c,v 1.2 1997/10/10 08:45:30 mrg Exp */
|
||||
|
||||
#ifndef ECOFF_COMPAT
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
|
||||
static void (*__CTOR_LIST__[1]) __P((void))
|
||||
__attribute__((__unused__))
|
||||
__attribute__((section(".ctors"))) = { (void *)0 }; /* XXX */
|
||||
static void (*__DTOR_LIST__[1]) __P((void))
|
||||
__attribute__((__unused__))
|
||||
__attribute__((section(".dtors"))) = { (void *)0 }; /* XXX */
|
||||
|
||||
#endif /* !ECOFF_COMPAT */
|
||||
Loading…
Reference in New Issue
Block a user