d549ead6a9
Preloaded library could have changed the environment, and unconditional assingment to the environ undoes the customization. The binaries needs to be recompiled to get the fix. Move the common code to set up environ and __progname into the helper. Note that ia64 possibly not fixed, due to it still using old csu. Reported and tested by: John Hein <jhein@symmetricom.com> Reviewed by: kan, scf Approved by: secteam (simon) MFC after: 2 weeks
110 lines
3.2 KiB
C
110 lines
3.2 KiB
C
/* LINTLIBRARY */
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/*-
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* Copyright 2001 David E. O'Brien.
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* All rights reserved.
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* Copyright (c) 1995, 1998 Berkeley Software Design, Inc.
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* All rights reserved.
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* Copyright 1996-1998 John D. Polstra.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the authors may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#ifndef lint
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#ifndef __GNUC__
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#error "GCC is needed to compile this file"
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#endif
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#endif /* lint */
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#include <stdlib.h>
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#include "libc_private.h"
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#include "crtbrand.c"
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#include "ignore_init.c"
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struct Struct_Obj_Entry;
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struct ps_strings;
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extern void __sparc_utrap_setup(void);
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#ifdef GCRT
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extern void _mcleanup(void);
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extern void monstartup(void *, void *);
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extern int eprol;
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extern int etext;
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#endif
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void _start(char **, void (*)(void), struct Struct_Obj_Entry *,
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struct ps_strings *);
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/* The entry function. */
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/*
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* %o0 holds ps_strings pointer.
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*
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* Note: kernel may (is not set in stone yet) pass ELF aux vector in %o1,
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* but for now we do not use it here.
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*
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* The SPARC compliance definitions specifies that the kernel pass the
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* address of a function to be executed on exit in %g1. We do not make
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* use of it as it is quite broken, because gcc can use this register
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* as a temporary, so it is not safe from C code. Its even more broken
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* for dynamic executables since rtld runs first.
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*/
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/* ARGSUSED */
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void
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_start(char **ap, void (*cleanup)(void), struct Struct_Obj_Entry *obj __unused,
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struct ps_strings *ps_strings __unused)
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{
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int argc;
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char **argv;
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char **env;
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argc = *(long *)(void *)ap;
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argv = ap + 1;
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env = ap + 2 + argc;
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handle_argv(argc, argv, env);
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if (&_DYNAMIC != NULL)
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atexit(cleanup);
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else {
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__sparc_utrap_setup();
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_init_tls();
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}
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#ifdef GCRT
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atexit(_mcleanup);
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monstartup(&eprol, &etext);
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#endif
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handle_static_init(argc, argv, env);
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exit(main(argc, argv, env));
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}
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#ifdef GCRT
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__asm__(".text");
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__asm__("eprol:");
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__asm__(".previous");
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#endif
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