deac/osd-contiki
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

fix build errors with start.S

Browse source
This commit is contained in:
maralvira 2010-11-07 15:19:45 +00:00
parent 29333232d5
commit 4664151419
1 changed files with 24 additions and 28 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

52
cpu/mc1322x/src/start.S
View file

@ -30,7 +30,7 @@
*
* This file is part of the Contiki OS.
*
* $Id: start.S,v 1.3 2010/11/07 14:57:53 maralvira Exp $
* $Id: start.S,v 1.4 2010/11/07 15:19:45 maralvira Exp $
*/
@ -58,15 +58,6 @@ IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
.global main // int main(void)
.global _etext // -> .data initial values in ROM
.global _data // -> .data area in RAM
.global _edata // end of .data area
.global __bss_start // -> .bss area in RAM
.global __bss_end__ // end of .bss area
.global _stack // top of stack
// Stack Sizes
.set UND_STACK_SIZE, 0x00000004
.set ABT_STACK_SIZE, 0x00000004
@ -86,16 +77,10 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
.equ I_BIT, 0x80 // when I bit is set, IRQ is disabled
.equ F_BIT, 0x40 // when F bit is set, FIQ is disabled
.text
.code 32
.align 2
.set _rom_data_init, 0x108d0
.global _start
.func _start
.section .start
.set _rom_data_init, 0x108d0
.global _start
_start:
b _begin // reset - _start
ldr pc,_undf // undefined
@ -165,18 +150,18 @@ _begin:
msr CPSR_c, #(MODE_SYS)
/* Clear BSS */
/* Clear BSS */
clear_bss:
ldr r0, _bss_start /* find start o
ldr r1, _bss_end /* stop here
mov r2, #0x00000000 /* clear
ldr r0, _bss_start /* find start of bss segment */
ldr r1, _bss_end /* stop here */
mov r2, #0x00000000 /* clear */
clbss_l:
str r2, [r0] /* clear loop..
add r0, r0, #4
cmp r0, r1
blt clbss_l
b main
str r2, [r0] /* clear loop... */
add r0, r0, #4
cmp r0, r1
blt clbss_l
b main
_undf: .word __undf // undefined
_swi: .word __swi // SWI
@ -192,3 +177,14 @@ __dabt: b . // data abort
/* IRQ handler set in isr.c */
//__irq: b . // IRQ
__fiq: b . // FIQ
/*
* These are defined in the board-specific linker script.
*/
.globl _bss_start
_bss_start:
.word __bss_start
.globl _bss_end
_bss_end:
.word _end