0bb4152b76
"setf", not "nop", for common_v10_v32 compatibility. Move out interrupt table to irqtable.S. Include here for non-ELF. * cris/irqtable.S: Extracted from cris/crt0.S. Provide per-entry weak default stub definitions. * cris/crtn.c: Use "setf", not "nop", for common_v10_v32 compatibility. * cris/setup.S [__arch_common_v10_v32]: Return. * cris/Makefile.in (BSP_OBJS): Add irqtable.o.
86 lines
2.3 KiB
ArmAsm
86 lines
2.3 KiB
ArmAsm
/* Generic simplistic start-up-stub for CRIS/CRISv32.
|
|
Copyright (C) 1993-2005, 2007 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:
|
|
move.d 0f,$r9
|
|
jump $r9
|
|
setf
|
|
|
|
#ifndef __ELF__
|
|
|
|
; For a.out, everything read-only and code-wise goes into a
|
|
; single section, so we can't separate the interrupt table from
|
|
; the startup code if we want to have files in-between.
|
|
#define IN_CRT0
|
|
#include "irqtable.S"
|
|
|
|
#else
|
|
|
|
; The interrupt table (at offset 12, irq #3) is expected here.
|
|
; The simplest way to make sure we link it in, is to sacrifice
|
|
; some memory and refer to it with a relocation.
|
|
.text
|
|
.dword __irqtable_at_irq3
|
|
|
|
#endif /* __ELF__ */
|
|
|
|
0:
|
|
move.d __setup,$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
|