4b999f1962
building defaults to off until clang is updated. current clang does not handle -shared, necessary to change the ld invocation to build shared libraries properly. a new clang should be installed and MKPIC defaults to no unless the newer clang is detected. changes: . mainly small imports of a Makefile or two and small fixes (turning things back on that were turned off in Makefiles) . e.g.: dynamic librefuse now depends on dynamic libpuffs, so libpuffs has to be built dynamically too and a make dependency barrier is needed in lib/Makefile . all library objects now have a PIC (for .so) and non-PIC version, so everything is built twice. . generate PIC versions of the compat (un-RENAMEd) jump files, include function type annotation in generated assembly . build progs with -static by default for now . also build ld.elf_so . also import NetBSD ldd
163 lines
5.6 KiB
C
163 lines
5.6 KiB
C
/* $NetBSD: ldd_elfxx.c,v 1.4 2009/09/07 04:49:03 dholland Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1998, 2000 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Paul Kranenburg.
|
|
*
|
|
* 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
* ``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 FOUNDATION OR CONTRIBUTORS
|
|
* 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.
|
|
*/
|
|
|
|
/*
|
|
* Copyright 1996 John D. Polstra.
|
|
* Copyright 1996 Matt Thomas <matt@3am-software.com>
|
|
* 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 John Polstra.
|
|
* 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#ifndef lint
|
|
__RCSID("$NetBSD: ldd_elfxx.c,v 1.4 2009/09/07 04:49:03 dholland Exp $");
|
|
#endif /* not lint */
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/mman.h>
|
|
#include <sys/wait.h>
|
|
|
|
#include <dirent.h>
|
|
#include <err.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <stdarg.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <ctype.h>
|
|
|
|
#include "debug.h"
|
|
#include "rtld.h"
|
|
#include "ldd.h"
|
|
|
|
#define munmap minix_munmap
|
|
|
|
/*
|
|
* elfxx_ldd() - bit-size independant ELF ldd implementation.
|
|
* returns 0 on success and -1 on failure.
|
|
*/
|
|
int
|
|
ELFNAME(ldd)(int fd, char *path, const char *fmt1, const char *fmt2)
|
|
{
|
|
struct stat st;
|
|
|
|
if (lseek(fd, 0, SEEK_SET) < 0 ||
|
|
fstat(fd, &st) < 0) {
|
|
_rtld_error("%s: %s", path, strerror(errno));
|
|
return -1;
|
|
}
|
|
|
|
_rtld_pagesz = sysconf(_SC_PAGESIZE);
|
|
|
|
#ifdef RTLD_ARCH_SUBDIR
|
|
_rtld_add_paths(path, &_rtld_default_paths,
|
|
RTLD_DEFAULT_LIBRARY_PATH "/" RTLD_ARCH_SUBDIR);
|
|
#endif
|
|
_rtld_add_paths(path, &_rtld_default_paths, RTLD_DEFAULT_LIBRARY_PATH);
|
|
|
|
_rtld_paths = NULL;
|
|
_rtld_trust = (st.st_mode & (S_ISUID | S_ISGID)) == 0;
|
|
if (_rtld_trust)
|
|
_rtld_add_paths(path, &_rtld_paths, getenv("LD_LIBRARY_PATH"));
|
|
|
|
_rtld_process_hints(path, &_rtld_paths, &_rtld_xforms, _PATH_LD_HINTS);
|
|
_rtld_objmain = _rtld_map_object(xstrdup(path), fd, &st);
|
|
if (_rtld_objmain == NULL)
|
|
return -1;
|
|
|
|
_rtld_objmain->path = xstrdup(path);
|
|
_rtld_digest_dynamic(path, _rtld_objmain);
|
|
|
|
/* Link the main program into the list of objects. */
|
|
*_rtld_objtail = _rtld_objmain;
|
|
_rtld_objtail = &_rtld_objmain->next;
|
|
++_rtld_objmain->refcount;
|
|
|
|
(void) _rtld_load_needed_objects(_rtld_objmain, 0);
|
|
|
|
if (fmt1 == NULL)
|
|
printf("%s:\n", _rtld_objmain->path);
|
|
main_local = path;
|
|
main_progname = _rtld_objmain->path;
|
|
print_needed(_rtld_objmain, fmt1, fmt2);
|
|
|
|
while (_rtld_objlist != NULL) {
|
|
Obj_Entry *obj = _rtld_objlist;
|
|
_rtld_objlist = obj->next;
|
|
while (obj->rpaths != NULL) {
|
|
const Search_Path *rpath = obj->rpaths;
|
|
obj->rpaths = rpath->sp_next;
|
|
xfree(__UNCONST(rpath->sp_path));
|
|
xfree(__UNCONST(rpath));
|
|
}
|
|
while (obj->needed != NULL) {
|
|
const Needed_Entry *needed = obj->needed;
|
|
obj->needed = needed->next;
|
|
xfree(__UNCONST(needed));
|
|
}
|
|
(void) munmap(obj->mapbase, obj->mapsize);
|
|
xfree(obj->path);
|
|
xfree(obj);
|
|
}
|
|
|
|
_rtld_objmain = NULL;
|
|
_rtld_objtail = &_rtld_objlist;
|
|
/* Need to free _rtld_paths? */
|
|
|
|
return 0;
|
|
}
|