84 lines
2.1 KiB
ArmAsm
84 lines
2.1 KiB
ArmAsm
|
/* Generic simplistic start-up-stub for CRIS/CRISv32.
|
||
|
|
Copyright (C) 1993-2005 Axis Communications.
|
||
|
|
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. Neither the name of Axis Communications nor the names of its
|
||
|
|
contributors may be used to endorse or promote products derived
|
||
|
|
from this software without specific prior written permission.
|
||
|
|
|
||
|
|
THIS SOFTWARE IS PROVIDED BY AXIS COMMUNICATIONS AND ITS CONTRIBUTORS
|
||
|
|
``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 AXIS
|
||
|
|
COMMUNICATIONS OR ITS CONTRIBUTORS 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. */
|
||
|
|
|
||
|
|
#undef cris
|
||
|
|
#undef L
|
||
|
|
#ifdef __NO_UNDERSCORES__
|
||
|
|
#define L(x) x
|
||
|
|
#else
|
||
|
|
#define L(x) _ ## x
|
||
|
|
#endif
|
||
|
|
|
||
|
|
; Rudimentary v0..v32-compatible startup stub.
|
||
|
|
|
||
|
|
#ifdef __ELF__
|
||
|
|
.section .startup,"ax"
|
||
|
|
#endif
|
||
|
|
.global __start
|
||
|
|
nop
|
||
|
|
__start:
|
||
|
|
ba 0f
|
||
|
|
nop
|
||
|
|
|
||
|
|
.rept 256 - 2
|
||
|
|
.dword _.int
|
||
|
|
.endr
|
||
|
|
|
||
|
|
_.int:
|
||
|
|
#ifdef __arch_common_v10_v32
|
||
|
|
; This is just to allow the multilib to compile without
|
||
|
|
; hackery: the "common" subset doesn't recognize
|
||
|
|
; interrupt-return insns.
|
||
|
|
#elif __CRIS_arch_version >= 32
|
||
|
|
rete
|
||
|
|
rfe
|
||
|
|
#else
|
||
|
|
reti
|
||
|
|
nop
|
||
|
|
#endif
|
||
|
|
|
||
|
|
0:
|
||
|
|
move.d __setup,$r9
|
||
|
|
jsr $r9
|
||
|
|
nop
|
||
|
|
#ifdef __ELF__
|
||
|
|
jsr L(_init)
|
||
|
|
nop
|
||
|
|
move.d L(_fini),$r10
|
||
|
|
jsr L(atexit)
|
||
|
|
nop
|
||
|
|
#endif
|
||
|
|
jsr L(main)
|
||
|
|
nop
|
||
|
|
jsr L(exit)
|
||
|
|
nop
|
||
|
|
0:
|
||
|
|
nop
|
||
|
|
ba 0b
|
||
|
|
nop
|