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
123 lines
3.8 KiB
C
123 lines
3.8 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 1996-1998 John D. Polstra.
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* All rights reserved.
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* Copyright (c) 1997 Jason R. Thorpe.
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* Copyright (c) 1995 Christopher G. Demetriou
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the
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* FreeBSD Project. See http://www.freebsd.org/ for
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* information about FreeBSD.
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* This product includes software developed for the
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* NetBSD Project. See http://www.netbsd.org/ for
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* information about NetBSD.
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* 4. The name of the author 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 _start(int, char **, char **, const struct Struct_Obj_Entry *,
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void (*)(void), struct ps_strings *);
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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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struct ps_strings *__ps_strings;
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void __start(int, char **, char **, struct ps_strings *,
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const struct Struct_Obj_Entry *, void (*)(void));
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/* The entry function. */
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__asm(" .text \n"
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" .align 0 \n"
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" .globl _start \n"
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" _start: \n"
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" mov r5, r2 /* cleanup */ \n"
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" mov r4, r1 /* obj_main */ \n"
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" mov r3, r0 /* ps_strings */ \n"
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" /* Get argc, argv, and envp from stack */ \n"
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" ldr r0, [sp, #0x0000] \n"
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" add r1, sp, #0x0004 \n"
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" add r2, r1, r0, lsl #2 \n"
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" add r2, r2, #0x0004 \n"
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" /* Ensure the stack is properly aligned before calling C code. */\n"
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" bic sp, sp, #7 \n"
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" sub sp, sp, #8 \n"
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" str r5, [sp, #4] \n"
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" str r4, [sp, #0] \n"
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"\n"
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" b __start ");
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/* ARGSUSED */
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void
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__start(int argc, char **argv, char **env, struct ps_strings *ps_strings,
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const struct Struct_Obj_Entry *obj __unused, void (*cleanup)(void))
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{
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handle_argv(argc, argv, env);
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if (ps_strings != (struct ps_strings *)0)
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__ps_strings = ps_strings;
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if (&_DYNAMIC != NULL)
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atexit(cleanup);
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else
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_init_tls();
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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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