genode/base-okl4/src/test/okl4_01_hello_raw/crt0.s
2013-01-10 21:44:47 +01:00

55 lines
1.1 KiB
ArmAsm

/**
* \brief Startup code for Genode applications
* \author Christian Helmuth
* \date 2006-07-06
*/
/*
* Copyright (C) 2006-2013 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU General Public License version 2.
*/
/*--- .text (program code) -------------------------*/
.text
.globl _start
_start:
/* XXX Switch to our own stack. */
mov $_stack_high,%esp
/* Clear the base pointer so that stack backtraces will work. */
xor %ebp,%ebp
/* Jump into init C code */
call _main
/* We should never get here since _main does not return */
1: int $3
jmp 2f
.ascii "_main() returned."
2: jmp 1b
/*--------------------------------------------------*/
.globl __dso_handle
__dso_handle:
.long 0
/*--- .eh_frame (exception frames) -----------------*/
/*
.section .eh_frame,"aw"
.globl __EH_FRAME_BEGIN__
__EH_FRAME_BEGIN__:
*/
/*--- .bss (non-initialized data) ------------------*/
.bss
.p2align 4
.globl _stack_low
_stack_low:
.space 64*1024
.globl _stack_high
_stack_high: