Current Path : /usr/src/lib/csu/arm/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
Current File : //usr/src/lib/csu/arm/crt1.c |
/* LINTLIBRARY */ /*- * Copyright 2001 David E. O'Brien. * All rights reserved. * Copyright 1996-1998 John D. Polstra. * All rights reserved. * Copyright (c) 1997 Jason R. Thorpe. * 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 for the * FreeBSD Project. See http://www.freebsd.org/ for * information about FreeBSD. * This product includes software developed for the * NetBSD Project. See http://www.netbsd.org/ for * information about NetBSD. * 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> __FBSDID("$FreeBSD: release/9.1.0/lib/csu/arm/crt1.c 216338 2010-12-09 21:31:21Z dim $"); #ifndef lint #ifndef __GNUC__ #error "GCC is needed to compile this file" #endif #endif /* lint */ #include <stdlib.h> #include "libc_private.h" #include "crtbrand.c" struct Struct_Obj_Entry; struct ps_strings; extern int _DYNAMIC; #pragma weak _DYNAMIC extern void _fini(void); extern void _init(void); extern int main(int, char **, char **); extern void _start(int, char **, char **, const struct Struct_Obj_Entry *, void (*)(void), struct ps_strings *); #ifdef GCRT extern void _mcleanup(void); extern void monstartup(void *, void *); extern int eprol; extern int etext; #endif char **environ; const char *__progname = ""; struct ps_strings *__ps_strings; void __start(int, char **, char **, struct ps_strings *, const struct Struct_Obj_Entry *, void (*)(void)); /* The entry function. */ __asm(" .text \n" " .align 0 \n" " .globl _start \n" " _start: \n" " mov r5, r2 /* cleanup */ \n" " mov r4, r1 /* obj_main */ \n" " mov r3, r0 /* ps_strings */ \n" " /* Get argc, argv, and envp from stack */ \n" " ldr r0, [sp, #0x0000] \n" " add r1, sp, #0x0004 \n" " add r2, r1, r0, lsl #2 \n" " add r2, r2, #0x0004 \n" " /* Ensure the stack is properly aligned before calling C code. */\n" " bic sp, sp, #7 \n" " sub sp, sp, #8 \n" " str r5, [sp, #4] \n" " str r4, [sp, #0] \n" "\n" " b __start "); /* ARGSUSED */ void __start(int argc, char **argv, char **env, struct ps_strings *ps_strings, const struct Struct_Obj_Entry *obj __unused, void (*cleanup)(void)) { const char *s; environ = env; if (argc > 0 && argv[0] != NULL) { __progname = argv[0]; for (s = __progname; *s != '\0'; s++) if (*s == '/') __progname = s + 1; } if (ps_strings != (struct ps_strings *)0) __ps_strings = ps_strings; if (&_DYNAMIC != NULL) atexit(cleanup); else _init_tls(); #ifdef GCRT atexit(_mcleanup); #endif atexit(_fini); #ifdef GCRT monstartup(&eprol, &etext); #endif _init(); exit( main(argc, argv, env) ); } #ifdef GCRT __asm__(".text"); __asm__("eprol:"); __asm__(".previous"); #endif