Kenji Arai
Please see my note book http://mbed.org/users/kenjiArai/notebook/freertos-on-mbed-board-with-mbed-cloud-ide--never-/
This is too old.
Below is another FreeRTOS on mbed.
http://developer.mbed.org/users/rgrover1/code/FreeRTOS/
I don't know it works well or not.
I have not evaluated it.
FreeRTOS/Source/portable/GCC/ARM_CM3/port_asm_mbed.s
- Committer:
- kenjiArai
- Date:
- 2011-01-01
- Revision:
- 0:d4960fcea8ff
File content as of revision 0:d4960fcea8ff:
;//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
;
; This is a program for FreeRTOS on LPC1768 mbed IDE
;
; C source file: port_asm.c
; Compiled on: GCC: (Sourcery G++ Lite 2010q1-188) 4.4.1
; Hand modification by: Kenji Arai / JH1PJL
; http://www.page.sannet.ne.jp/kenjia/index.html
;
; Started on: October 31st, 2010
; updated on: October 31st, 2010
;
;//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
; .syntax unified
; .cpu cortex-m3
; .fpu softvfp
; .eabi_attribute 20, 1
; .eabi_attribute 21, 1
; .eabi_attribute 23, 3
; .eabi_attribute 24, 1
; .eabi_attribute 25, 1
; .eabi_attribute 26, 1
; .eabi_attribute 30, 6
; .eabi_attribute 18, 4
EXTERN pxCurrentTCB
EXTERN uxCriticalNesting
EXTERN vTaskSwitchContext
EXTERN vTaskIncrementTick
EXTERN prvCopyDataToQueue
EXTERN xTaskRemoveFromEventList
EXTERN prvCopyDataFromQueue
EXTERN prvIdleTask
EXTERN xTaskGenericCreate
EXTERN xSchedulerRunning
EXTERN xTickCount
EXTERN vConfigureTimerForRunTimeStats
EXTERN xPortStartScheduler
EXTERN vPortEndScheduler
CODE16
PRESERVE8
AREA Port, CODE, READONLY
;//////////////////////////////////////////////////////
; .thumb
THUMB
; .file "port_asm.c"
; .text
; .align 2
ALIGN 2
GLOBAL Reset_Handler
THUMB
Reset_Handler
push {r7, lr}
pop {r7, pc}
;///////////////////////////////////////////////////////
ALIGN 2
; .global vPortSVCHandler
GLOBAL vPortSVCHandler
; .thumb
THUMB
; .thumb_func
; .type vPortSVCHandler, %function
;vPortSVCHandler:
vPortSVCHandler
; @ Naked Function: prologue and epilogue provided by programmer.
; @ args = 0, pretend = 0, frame = 0
; @ frame_needed = 1, uses_anonymous_args = 0
;@ 199 "port_asm.c" 1
ldr r3, pxCurrentTCBConst2
ldr r1, [r3]
ldr r0, [r1]
ldmia r0!, {r4-r11}
msr psp, r0
mov r0, #0
msr basepri, r0
orr r14, #0xd
bx r14
; .align 2
ALIGN 2
;pxCurrentTCBConst2: .word pxCurrentTCB
pxCurrentTCBConst2 DCD pxCurrentTCB
;@ 0 "" 2
; .thumb
THUMB
; .size vPortSVCHandler, .-vPortSVCHandler
;///////////////////////////////////////////////////////
; .align 2
ALIGN 2
; .global vPortStartFirstTask
GLOBAL vPortStartFirstTask
; .thumb
THUMB
; .thumb_func
; .type vPortStartFirstTask, %function
;vPortStartFirstTask:
vPortStartFirstTask
; @ Naked Function: prologue and epilogue provided by programmer.
; @ args = 0, pretend = 0, frame = 0
; @ frame_needed = 1, uses_anonymous_args = 0
;@ 218 "port_asm.c" 1
ldr r0, =0xE000ED08
ldr r0, [r0]
ldr r0, [r0]
msr msp, r0
svc 0
;@ 0 "" 2
; .thumb
THUMB
; .size vPortStartFirstTask, .-vPortStartFirstTask
;///////////////////////////////////////////////////////
; .align 2
ALIGN 2
; .global vPortEnterCritical
GLOBAL vPortEnterCritical
; .thumb
THUMB
; .thumb_func
; .type vPortEnterCritical, %function
;vPortEnterCritical:
vPortEnterCritical
; @ args = 0, pretend = 0, frame = 0
; @ frame_needed = 1, uses_anonymous_args = 0
; @ link register save eliminated.
push {r7}
add r7, sp, #0
;@ 270 "port_asm.c" 1
mov r0, #40
msr basepri, r0
;@ 0 "" 2
; .thumb
THUMB
movw r3, #:lower16:uxCriticalNesting
movt r3, #:upper16:uxCriticalNesting
ldr r3, [r3, #0]
add r2, r3, #1
movw r3, #:lower16:uxCriticalNesting
movt r3, #:upper16:uxCriticalNesting
str r2, [r3, #0]
mov sp, r7
pop {r7}
bx lr
; .size vPortEnterCritical, .-vPortEnterCritical
;///////////////////////////////////////////////////////
; .align 2
ALIGN 2
; .global vPortExitCritical
GLOBAL vPortExitCritical
; .thumb
THUMB
; .thumb_func
; .type vPortExitCritical, %function
;vPortExitCritical:
vPortExitCritical
; @ args = 0, pretend = 0, frame = 0
; @ frame_needed = 1, uses_anonymous_args = 0
; @ link register save eliminated.
push {r7}
add r7, sp, #0
movw r3, #:lower16:uxCriticalNesting
movt r3, #:upper16:uxCriticalNesting
ldr r3, [r3, #0]
add r2, r3, #-1
movw r3, #:lower16:uxCriticalNesting
movt r3, #:upper16:uxCriticalNesting
str r2, [r3, #0]
movw r3, #:lower16:uxCriticalNesting
movt r3, #:upper16:uxCriticalNesting
ldr r3, [r3, #0]
cmp r3, #0
; bne .L9
bne Jmp0
;@ 280 "port_asm.c" 1
mov r0, #0
msr basepri, r0
;@ 0 "" 2
; .thumb
THUMB
;.L9:
Jmp0
mov sp, r7
pop {r7}
bx lr
; .size vPortExitCritical, .-vPortExitCritical
;///////////////////////////////////////////////////////
; .align 2
ALIGN 2
; .global xPortPendSVHandler
GLOBAL xPortPendSVHandler
; .thumb
THUMB
; .thumb_func
; .type xPortPendSVHandler, %function
;xPortPendSVHandler:
xPortPendSVHandler
; @ Naked Function: prologue and epilogue provided by programmer.
; @ args = 0, pretend = 0, frame = 0
; @ frame_needed = 1, uses_anonymous_args = 0
;@ 289 "port_asm.c" 1
mrs r0, psp
ldr r3, pxCurrentTCBConst
ldr r2, [r3]
stmdb r0!, {r4-r11}
str r0, [r2]
stmdb sp!, {r3, r14}
mov r0, #40
msr basepri, r0
; error " port_asm_mbed.s.s.LPC1768.o(Port) contains invalid call from '~PRES8 (The user did not require code to preserve 8-byte aligment of 8-byte data objects)' function to 'REQ8 (Code was permitted to depend on the 8-byte aligment of 8-byte data items)' function vTaskSwitchContext. (EL6238E)
bl vTaskSwitchContext
mov r0, #0
msr basepri, r0
ldmia sp!, {r3, r14}
ldr r1, [r3]
ldr r0, [r1]
ldmia r0!, {r4-r11}
msr psp, r0
bx r14
; .align 2
ALIGN 2
;pxCurrentTCBConst: .word pxCurrentTCB
pxCurrentTCBConst DCD pxCurrentTCB
;@ 0 "" 2
; .thumb
THUMB
; .size xPortPendSVHandler, .-xPortPendSVHandler
;///////////////////////////////////////////////////////
; .align 2
ALIGN 2
; .global xPortSysTickHandler
GLOBAL xPortSysTickHandler
; .thumb
THUMB
; .thumb_func
; .type xPortSysTickHandler, %function
;xPortSysTickHandler:
xPortSysTickHandler
; @ args = 0, pretend = 0, frame = 8
; @ frame_needed = 1, uses_anonymous_args = 0
push {r7, lr}
sub sp, sp, #8
add r7, sp, #0
; movw r3, #:lower16:-536810236
; movt r3, #:upper16:-536810236
movw r3, #0xED04
movt r3, #0xE000
; movw r3, #:LDW:(-536810236)
; movt r3, #:HDW:(-536810236)
; mov32 r3, -536810236
; mov r2, #268435456
str r2, [r3, #0]
mov r3, #0
str r3, [r7, #4]
;@ 329 "port_asm.c" 1
mov r0, #40
msr basepri, r0
;@ 0 "" 2
; .thumb
THUMB
bl vTaskIncrementTick
;@ 333 "port_asm.c" 1
mov r0, #0
msr basepri, r0
;@ 0 "" 2
; .thumb
THUMB
add r7, r7, #8
mov sp, r7
pop {r7, pc}
; .size xPortSysTickHandler, .-xPortSysTickHandler
;///////////////////////////////////////////////////////
; .align 2
ALIGN 2
; .global xQueueGenericSendFromISR
GLOBAL xQueueGenericSendFromISR
; .thumb
THUMB
; .thumb_func
; .type xQueueGenericSendFromISR, %function
;xQueueGenericSendFromISR:
xQueueGenericSendFromISR
; @ args = 0, pretend = 0, frame = 24
; @ frame_needed = 1, uses_anonymous_args = 0
push {r7, lr}
sub sp, sp, #24
add r7, sp, #0
str r0, [r7, #12]
str r1, [r7, #8]
str r2, [r7, #4]
str r3, [r7, #0]
mov r3, #0
str r3, [r7, #20]
;@ 399 "port_asm.c" 1
mov r0, #40
msr basepri, r0
;@ 0 "" 2
; .thumb
THUMB
ldr r3, [r7, #12]
ldr r2, [r3, #56]
ldr r3, [r7, #12]
ldr r3, [r3, #60]
cmp r2, r3
; bcs .L15
bcs Jmp5
ldr r0, [r7, #12]
ldr r1, [r7, #8]
ldr r2, [r7, #0]
bl prvCopyDataToQueue
ldr r3, [r7, #12]
ldr r3, [r3, #72]
cmp r3, #-1
; bne .L16
bne Jmp1
ldr r3, [r7, #12]
ldr r3, [r3, #36]
cmp r3, #0
; beq .L21
beq Jmp2
ldr r3, [r7, #12]
add r3, r3, #36
mov r0, r3
bl xTaskRemoveFromEventList
mov r3, r0
cmp r3, #0
; beq .L22
beq Jmp3
ldr r3, [r7, #4]
mov r2, #1
str r2, [r3, #0]
; b .L18
b Jmp4
;.L16:
Jmp1
ldr r3, [r7, #12]
ldr r3, [r3, #72]
add r2, r3, #1
ldr r3, [r7, #12]
str r2, [r3, #72]
; b .L18
b Jmp4
;.L21:
Jmp2
nop
; b .L18
b Jmp4
;.L22:
Jmp3
nop
;.L18:
Jmp4
mov r3, #1
str r3, [r7, #16]
; b .L19
b Jmp6
;.L15:
Jmp5
mov r3, #0
str r3, [r7, #16]
;.L19:
Jmp6
;@ 436 "port_asm.c" 1
mov r0, #0
msr basepri, r0
;@ 0 "" 2
; .thumb
THUMB
ldr r3, [r7, #16]
mov r0, r3
add r7, r7, #24
mov sp, r7
pop {r7, pc}
; .size xQueueGenericSendFromISR, .-xQueueGenericSendFromISR
;///////////////////////////////////////////////////////
; .align 2
ALIGN 2
; .global xQueueReceiveFromISR
GLOBAL xQueueReceiveFromISR
; .thumb
THUMB
; .thumb_func
; .type xQueueReceiveFromISR, %function
;xQueueReceiveFromISR:
xQueueReceiveFromISR
; @ args = 0, pretend = 0, frame = 24
; @ frame_needed = 1, uses_anonymous_args = 0
push {r7, lr}
sub sp, sp, #24
add r7, sp, #0
str r0, [r7, #12]
str r1, [r7, #8]
str r2, [r7, #4]
mov r3, #0
str r3, [r7, #20]
;@ 449 "port_asm.c" 1
mov r0, #40
msr basepri, r0
;@ 0 "" 2
; .thumb
THUMB
ldr r3, [r7, #12]
ldr r3, [r3, #56]
cmp r3, #0
; beq .L24
beq Jmp11
ldr r0, [r7, #12]
ldr r1, [r7, #8]
bl prvCopyDataFromQueue
ldr r3, [r7, #12]
ldr r3, [r3, #56]
add r2, r3, #-1
ldr r3, [r7, #12]
str r2, [r3, #56]
ldr r3, [r7, #12]
ldr r3, [r3, #68]
cmp r3, #-1
; bne .L25
bne Jmp7
ldr r3, [r7, #12]
ldr r3, [r3, #16]
cmp r3, #0
; beq .L30
beq Jmp8
ldr r3, [r7, #12]
add r3, r3, #16
mov r0, r3
bl xTaskRemoveFromEventList
mov r3, r0
cmp r3, #0
; beq .L31
beq Jmp9
ldr r3, [r7, #4]
mov r2, #1
str r2, [r3, #0]
; b .L27
b Jmp10
;.L25:
Jmp7
ldr r3, [r7, #12]
ldr r3, [r3, #68]
add r2, r3, #1
ldr r3, [r7, #12]
str r2, [r3, #68]
; b .L27
b Jmp10
;.L30:
Jmp8
nop
; b .L27
b Jmp10
;.L31:
Jmp9
nop
;.L27:
Jmp10
mov r3, #1
str r3, [r7, #16]
; b .L28
b Jmp12
;.L24:
Jmp11
mov r3, #0
str r3, [r7, #16]
;.L28:
Jmp12
;@ 489 "port_asm.c" 1
mov r0, #0
msr basepri, r0
;@ 0 "" 2
; .thumb
THUMB
ldr r3, [r7, #16]
mov r0, r3
add r7, r7, #24
mov sp, r7
pop {r7, pc}
; .size xQueueReceiveFromISR, .-xQueueReceiveFromISR
;///////////////////////////////////////////////////////
; .section .rodata
; AREA Text, CODE, READONLY ??????????????????????????????????????????????
; .align 2
ALIGN 2
;.LC0:
Txt0
; .ascii "IDLE\000"
DCB "IDLE\000",0
; .text
; AREA Port, CODE, READONLY ??????????????????????????????????????????????
;///////////////////////////////////////////////////////
; .align 2
ALIGN 2
; .global vTaskStartScheduler
GLOBAL vTaskStartScheduler
; .thumb
THUMB
; .thumb_func
; .type vTaskStartScheduler, %function
;vTaskStartScheduler:
vTaskStartScheduler
; @ args = 0, pretend = 0, frame = 8
; @ frame_needed = 1, uses_anonymous_args = 0
push {r7, lr}
sub sp, sp, #24
add r7, sp, #16
; movw r3, #:lower16:.LC0
; movt r3, #:upper16:.LC0
; movw r3, # LDW Txt0
; movt r3, # HDW Txt0
movw r3, #:lower16:Txt0
movt r3, #:upper16:Txt0
mov r2, #0
str r2, [sp, #0]
mov r2, #0
str r2, [sp, #4]
mov r2, #0
str r2, [sp, #8]
mov r2, #0
str r2, [sp, #12]
movw r0, #:lower16:prvIdleTask
movt r0, #:upper16:prvIdleTask
mov r1, r3
mov r2, #64
mov r3, #0
bl xTaskGenericCreate
mov r3, r0
str r3, [r7, #4]
ldr r3, [r7, #4]
cmp r3, #1
; bne .L34
bne Jmp13
;@ 514 "port_asm.c" 1
mov r0, #40
msr basepri, r0
;@ 0 "" 2
; .thumb
THUMB
movw r3, #:lower16:xSchedulerRunning
movt r3, #:upper16:xSchedulerRunning
mov r2, #1
str r2, [r3, #0]
movw r3, #:lower16:xTickCount
movt r3, #:upper16:xTickCount
mov r2, #0
str r2, [r3, #0]
bl vConfigureTimerForRunTimeStats
bl xPortStartScheduler
;.L34:
Jmp13
add r7, r7, #8
mov sp, r7
pop {r7, pc}
; .size vTaskStartScheduler, .-vTaskStartScheduler
;///////////////////////////////////////////////////////
; .align 2
ALIGN 2
; .global vTaskEndScheduler
GLOBAL vTaskEndScheduler
; .thumb
THUMB
; .thumb_func
; .type vTaskEndScheduler, %function
;vTaskEndScheduler:
vTaskEndScheduler
; @ args = 0, pretend = 0, frame = 0
; @ frame_needed = 1, uses_anonymous_args = 0
push {r7, lr}
add r7, sp, #0
;@ 546 "port_asm.c" 1
mov r0, #40
msr basepri, r0
;@ 0 "" 2
; .thumb
THUMB
movw r3, #:lower16:xSchedulerRunning
movt r3, #:upper16:xSchedulerRunning
mov r2, #0
str r2, [r3, #0]
bl vPortEndScheduler
pop {r7, pc}
; .size vTaskEndScheduler, .-vTaskEndScheduler
; .ident "GCC: (Sourcery G++ Lite 2010q1-188) 4.4.1"
ALIGN 2
nop
nop
nop
END