From d501ad45e35b79af56b469fbd8a5bf9df0d16505 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Tue, 9 Aug 2005 04:54:18 +0000 Subject: update crt0 to crt1 based heavily on glibc start.S and to sync up with __uClibc_main changes --- libc/sysdeps/linux/sh/crt0.S | 136 ------------------------------------------- 1 file changed, 136 deletions(-) delete mode 100644 libc/sysdeps/linux/sh/crt0.S (limited to 'libc/sysdeps/linux/sh/crt0.S') diff --git a/libc/sysdeps/linux/sh/crt0.S b/libc/sysdeps/linux/sh/crt0.S deleted file mode 100644 index 9a3936750..000000000 --- a/libc/sysdeps/linux/sh/crt0.S +++ /dev/null @@ -1,136 +0,0 @@ -/* Startup code for SH & ELF. - Copyright (C) 1999 Free Software Foundation, Inc. - Copyright (C) 2001 Hewlett-Packard Australia - Copyright (C) 2002 Stefan Allius - - This program is free software; you can redistribute it and/or modify it under - the terms of the GNU Library General Public License as published by the Free - Software Foundation; either version 2 of the License, or (at your option) any - later version. - - This program is distributed in the hope that it will be useful, but WITHOUT - ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS - FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more - details. - - You should have received a copy of the GNU Library General Public License - along with this program; if not, write to the Free Software Foundation, Inc., - 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -*/ - - -/* This is the canonical entry point, usually the first thing in the text - segment. - - At this entry point, most registers' values are unspecified, except: - - sp The stack contains the arguments and environment: - 0(sp) argc - 4(sp) argv[0] - ... - (4*argc)(sp) NULL - (4*(argc+1))(sp) envp[0] - ... - NULL -*/ - -#include - - .file "crt0.S" - .text - .globl _start - .type _start,@function - .type main,@function - .size _start,_start_end - _start -_start: - /* Clear the frame pointer since this is the outermost frame. */ - mov #0, r14 - - /* Pop argc off the stack and save a pointer to argv */ - mov.l @r15+,r4 - mov r15, r5 - -#if defined L_crt0 || ! defined __UCLIBC_CTOR_DTOR__ - /* - * Setup the value for the environment pointer: - * r6 = (argc + 1) * 4 - * r6 += argv (in delay slot) - */ - mov r4,r6 - add #1,r6 - shll2 r6 - - /* jump to __uClibc_main (argc, argv, envp) */ - mov.l L_main, r0 - jsr @r0 - add r5, r6 /* delay slot */ - - /* We should not get here. */ - mov.l L_abort, r0 - jmp @r0 - nop - -_start_end: - .align 2 - -L_main: - .long __uClibc_main /* in libuClibc.*.so */ - -#else /* (L_crt1) && __UCLIBC_CTOR_DTOR__ */ - /* Push the finip argument to __uClibc_start_main() onto the stack */ - mov.l L_fini,r6 - mov.l r6,@-r15 - - /* Setup the value for the initp argument */ - mov.l L_init, r7 - - /* - * Setup the value for the environment pointer: - * r6 = (argc + 1) * 4 - * r6 += argv (in delay slot) - */ - mov r4,r6 - add #1,r6 - shll2 r6 - - /* jump to __uClibc_start_main (argc, argv, envp, app_init, app_fini) */ - mov.l L_main, r0 - jsr @r0 - add r5, r6 /* delay slot */ - /* We should not get here. */ - mov.l L_abort, r0 - jmp @r0 - nop -_start_end: - .align 2 - -L_main: - .long __uClibc_start_main /* in libuClibc.*.so */ - - .weak _init - .type _init,@function -_init: - rts - nop - - .size _init,.-_init - .weak _fini - .set _fini,_init - -L_init: - .long _init -L_fini: - .long _fini - -#endif - -L_abort: - .long abort - -/* Define a symbol for the first piece of initialized data. */ - .data - .globl __data_start -__data_start: - .long 0 - .weak data_start - data_start = __data_start -- cgit v1.2.3