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fix build errors with start.S

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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
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52
cpu/mc1322x/src/start.S
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@ -30,7 +30,7 @@
* *
* This file is part of the Contiki OS. * 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. 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 // Stack Sizes
.set UND_STACK_SIZE, 0x00000004 .set UND_STACK_SIZE, 0x00000004
.set ABT_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 I_BIT, 0x80 // when I bit is set, IRQ is disabled
.equ F_BIT, 0x40 // when F bit is set, FIQ 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 .section .start
.set _rom_data_init, 0x108d0
.global _start
_start: _start:
b _begin // reset - _start b _begin // reset - _start
ldr pc,_undf // undefined ldr pc,_undf // undefined
@ -165,18 +150,18 @@ _begin:
msr CPSR_c, #(MODE_SYS) msr CPSR_c, #(MODE_SYS)
/* Clear BSS */ /* Clear BSS */
clear_bss: clear_bss:
ldr r0, _bss_start /* find start o ldr r0, _bss_start /* find start of bss segment */
ldr r1, _bss_end /* stop here ldr r1, _bss_end /* stop here */
mov r2, #0x00000000 /* clear mov r2, #0x00000000 /* clear */
clbss_l: clbss_l:
str r2, [r0] /* clear loop.. str r2, [r0] /* clear loop... */
add r0, r0, #4 add r0, r0, #4
cmp r0, r1 cmp r0, r1
blt clbss_l blt clbss_l
b main b main
_undf: .word __undf // undefined _undf: .word __undf // undefined
_swi: .word __swi // SWI _swi: .word __swi // SWI
@ -192,3 +177,14 @@ __dabt: b . // data abort
/* IRQ handler set in isr.c */ /* IRQ handler set in isr.c */
//__irq: b . // IRQ //__irq: b . // IRQ
__fiq: b . // FIQ __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