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/*
* libc/sysdeps/linux/v850/crt0.S -- Initial program entry point for linux/v850
*
* Copyright (C) 2001,02,03 NEC Electronics Corporation
* Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License. See the file COPYING.LIB in the main
* directory of this archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include <clinkage.h>
/* Upon entry, the stack contains the following data:
argc, argv[0], ..., argv[argc-1], 0, envp[0], ..., 0
*/
.text
C_ENTRY(start):
ld.w 0[sp], r6 /* Arg 0: argc */
addi 4, sp, r7 /* Arg 1: argv */
mov r7, r8 /* Arg 2: envp */
mov r6, r10 /* skip argc elements to get envp start */
add 1, r10 /* ...plus the NULL at the end of argv */
shl 2, r10 /* Convert to byte-count to skip */
add r10, r8
/* Load CTBP register */
mov hilo(C_SYMBOL_NAME(_ctbp)), r19
ldsr r19, ctbp
/* Load GP */
mov hilo(C_SYMBOL_NAME(_gp)), gp
/* tail-call uclibc's startup routine */
addi -24, sp, sp /* Stack space reserved for args */
jr C_SYMBOL_NAME(__uClibc_main)
/* Stick in a dummy reference to `main', so that if an application
is linking when the `main' function is in a static library (.a)
we can be sure that `main' actually gets linked in. */
L_dummy_main_reference:
.long C_SYMBOL_NAME(main)
/* 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
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