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Merge pull request #493 from aozima/pulls 

update libcpu:arm926
This commit is contained in:
Bernard Xiong 2015-06-04 17:24:21 +08:00
parent 0ac07f9ffb 314379cc77
commit ebe21c4760
3 changed files with 54 additions and 16 deletions
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12
libcpu/arm/arm926/start_gcc.S
View File

@ -22,6 +22,7 @@
* 2011-01-13 weety first version
* 2015-04-15 ArdaFu Split from AT91SAM9260 BSP
* 2015-04-21 ArdaFu Remove remap code. Using mmu to map vector table
* 2015-06-04 aozima Align stack address to 8 byte.
*/
#define S_FRAME_SIZE (18*4) //72
@ -61,31 +62,32 @@
.section .nobss, "w"
.space UND_STK_SIZE
.align 3
.global UND_STACK_START
UND_STACK_START:
.space ABT_STK_SIZE
.align 2
.align 3
.global ABT_STACK_START
ABT_STACK_START:
.space FIQ_STK_SIZE
.align 2
.align 3
.global FIQ_STACK_START
FIQ_STACK_START:
.space IRQ_STK_SIZE
.align 2
.align 3
.global IRQ_STACK_START
IRQ_STACK_START:
.skip SYS_STK_SIZE
.align 2
.align 3
.global SYS_STACK_START
SYS_STACK_START:
.space SVC_STK_SIZE
.align 2
.align 3
.global SVC_STACK_START
SVC_STACK_START:

12
libcpu/arm/arm926/start_iar.S
View File

@ -22,6 +22,7 @@
; * 2011-01-13 weety first version
; * 2015-04-15 ArdaFu Split from AT91SAM9260 BSP
; * 2015-04-21 ArdaFu Remove remap code. Using mmu to map vector table
; * 2015-06-04 aozima Align stack address to 8 byte.
; */
#define S_FRAME_SIZE (18*4) ;72
@ -62,31 +63,32 @@
SECTION .noinit:DATA:NOROOT(3)
DATA
ALIGNRAM 3
DS8 UND_STK_SIZE
PUBLIC UND_STACK_START
UND_STACK_START:
ALIGNRAM 2
ALIGNRAM 3
DS8 ABT_STK_SIZE
PUBLIC ABT_STACK_START
ABT_STACK_START:
ALIGNRAM 2
ALIGNRAM 3
DS8 FIQ_STK_SIZE
PUBLIC FIQ_STACK_START
FIQ_STACK_START:
ALIGNRAM 2
ALIGNRAM 3
DS8 IRQ_STK_SIZE
PUBLIC IRQ_STACK_START
IRQ_STACK_START:
ALIGNRAM 2
ALIGNRAM 3
DS8 SYS_STK_SIZE
PUBLIC SYS_STACK_START
SYS_STACK_START:
ALIGNRAM 2
ALIGNRAM 3
DS8 SVC_STK_SIZE
PUBLIC SVC_STACK_START
SVC_STACK_START:

46
libcpu/arm/arm926/start_rvds.S
View File

@ -22,6 +22,7 @@
; * 2011-08-14 weety first version
; * 2015-04-15 ArdaFu Split from AT91SAM9260 BSP
; * 2015-04-21 ArdaFu Remove remap code. Using mmu to map vector table
; * 2015-06-04 aozima Align stack address to 8 byte.
; */
S_FRAME_SIZE EQU (18*4) ;72
@ -60,38 +61,44 @@ NOINT EQU 0xC0
GET rt_low_level_keil.inc
;----------------------- Stack and Heap Definitions ----------------------------
AREA STACK, NOINIT, READWRITE, ALIGN=2
AREA STACK, NOINIT, READWRITE, ALIGN=3
Stack_Mem
SPACE UND_STK_SIZE
EXPORT UND_STACK_START
UND_STACK_START
ALIGN 4
ALIGN 8
SPACE ABT_STK_SIZE
EXPORT ABT_STACK_START
ABT_STACK_START
ALIGN 4
ALIGN 8
SPACE FIQ_STK_SIZE
EXPORT FIQ_STACK_START
FIQ_STACK_START
ALIGN 4
ALIGN 8
SPACE IRQ_STK_SIZE
EXPORT IRQ_STACK_START
IRQ_STACK_START
ALIGN 4
ALIGN 8
SPACE SYS_STK_SIZE
EXPORT SYS_STACK_START
SYS_STACK_START
ALIGN 4
ALIGN 8
SPACE SVC_STK_SIZE
EXPORT SVC_STACK_START
SVC_STACK_START
Stack_Top
__initial_sp
__heap_base
Heap_Mem SPACE Heap_Size
__heap_limit
PRESERVE8
;--------------Jump vector table------------------------------------------------
EXPORT Entry_Point
@ -291,4 +298,31 @@ rt_hw_context_switch_interrupt_do PROC
LDMFD SP!, {R0-R12,LR,PC}^ ; pop new task's R0-R12,LR & PC SPSR to CPSR
ENDP
;*******************************************************************************
; User Stack and Heap initialization
;*******************************************************************************
IF :DEF:__MICROLIB
EXPORT __initial_sp
EXPORT __heap_base
EXPORT __heap_limit
ELSE
IMPORT __use_two_region_memory
EXPORT __user_initial_stackheap
__user_initial_stackheap
LDR R0, = Heap_Mem ; heap base
LDR R1, = SVC_STACK_START ; stack base (top-address)
LDR R2, = (Heap_Mem + Heap_Size) ; heap limit
LDR R3, = (SVC_STACK_START - SVC_STK_SIZE) ; stack limit (low-address)
BX LR
ALIGN
ENDIF
END