cbbcfbf8b7
macro for identification, instead of several different hand-rolled variants (plain .ident, .ascii, etc).
141 lines
4.1 KiB
C
141 lines
4.1 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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struct Struct_Obj_Entry;
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struct ps_strings;
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extern int _DYNAMIC;
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#pragma weak _DYNAMIC
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extern void _fini(void);
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extern void _init(void);
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extern int main(int, char **, char **);
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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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char **environ;
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const char *__progname = "";
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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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const char *s;
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environ = env;
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if (argc > 0 && argv[0] != NULL) {
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__progname = argv[0];
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for (s = __progname; *s != '\0'; s++)
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if (*s == '/')
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__progname = s + 1;
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}
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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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#endif
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atexit(_fini);
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#ifdef GCRT
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monstartup(&eprol, &etext);
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#endif
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_init();
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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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