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我是visualGDB的新手。最近新建了一个stm32单机项目,任何.cpp.c文件都可以正确编译,但是当我将μC/OS-II迁移到项目中时,发现os_cpu_a.s文件无法正确组装。错误日志如下所示: os_cpu_a.s 组装错误日志图像

我的Makefile标志设置是: 我的 visualGDB makefile 设置图像

请给我一些建议!任何帮助将不胜感激!

os_cpu_a.s文件内容如下图所示:

;/*********************** (C) COPYRIGHT 2010 Libraworks *************************
;* File Name    : os_cpu_a.asm 
;* Author       : Librae 
;* Version      : V1.0
;* Date         : 06/10/2010
;* Description  : μCOS-II asm port  for STM32
;*******************************************************************************/

        IMPORT  OSRunning               ; External references
        IMPORT  OSPrioCur
        IMPORT  OSPrioHighRdy
        IMPORT  OSTCBCur
        IMPORT  OSTCBHighRdy
        IMPORT  OSIntNesting
        IMPORT  OSIntExit
        IMPORT  OSTaskSwHook
           
        EXPORT  OSStartHighRdy               
        EXPORT  OSCtxSw
        EXPORT  OSIntCtxSw
        EXPORT  OS_CPU_SR_Save                              ; Functions declared in this file
        EXPORT  OS_CPU_SR_Restore   
        EXPORT  PendSV_Handler
            
     
        NVIC_INT_CTRL       EQU     0xE000ED04  
        NVIC_SYSPRI2        EQU     0xE000ED20  
        NVIC_PENDSV_PRI     EQU     0xFFFF0000  
        NVIC_PENDSVSET      EQU     0x10000000  


        PRESERVE8 
        
        AREA    |.text|, CODE, READONLY
        THUMB 
    
           

;********************************************************************************************************
;                                   CRITICAL SECTION METHOD 3 FUNCTIONS
;
; Description: Disable/Enable interrupts by preserving the state of interrupts.  Generally speaking you
;              would store the state of the interrupt disable flag in the local variable 'cpu_sr' and then
;              disable interrupts.  'cpu_sr' is allocated in all of uC/OS-II's functions that need to
;              disable interrupts.  You would restore the interrupt disable state by copying back 'cpu_sr'
;              into the CPU's status register.
;
; Prototypes :     OS_CPU_SR  OS_CPU_SR_Save(void);
;                  void       OS_CPU_SR_Restore(OS_CPU_SR cpu_sr);
;
;
; Note(s)    : 1) These functions are used in general like this:
;
;                 void Task (void *p_arg)
;                 {
;                 #if OS_CRITICAL_METHOD == 3          /* Allocate storage for CPU status register */
;                     OS_CPU_SR  cpu_sr;
;                 #endif
;
;                          :
;                          :
;                     OS_ENTER_CRITICAL();             /* cpu_sr = OS_CPU_SaveSR();                */
;                          :
;                          :
;                     OS_EXIT_CRITICAL();              /* OS_CPU_RestoreSR(cpu_sr);                */
;                          :
;                          :
;                 }
;********************************************************************************************************

OS_CPU_SR_Save
    MRS     R0, PRIMASK     
    CPSID   I               
    BX      LR             

OS_CPU_SR_Restore
    MSR     PRIMASK, R0     
    BX      LR              


OSStartHighRdy
        LDR     R4, =NVIC_SYSPRI2      ; set the PendSV exception priority
        LDR     R5, =NVIC_PENDSV_PRI
        STR     R5, [R4]

        MOV     R4, #0                 ; set the PSP to 0 for initial context switch call
        MSR     PSP, R4

        LDR     R4, =OSRunning         ; OSRunning = TRUE
        MOV     R5, #1
        STRB    R5, [R4]

                                       
        LDR     R4, =NVIC_INT_CTRL     ;rigger the PendSV exception (causes context switch)
        LDR     R5, =NVIC_PENDSVSET
        STR     R5, [R4]

        CPSIE   I                      ;enable interrupts at processor level
OSStartHang
        B       OSStartHang            ;should never get here

  
OSCtxSw
        PUSH    {R4, R5}
        LDR     R4, =NVIC_INT_CTRL      
        LDR     R5, =NVIC_PENDSVSET
        STR     R5, [R4]
        POP     {R4, R5}
        BX      LR

OSIntCtxSw
        PUSH    {R4, R5}
        LDR     R4, =NVIC_INT_CTRL      
        LDR     R5, =NVIC_PENDSVSET
        STR     R5, [R4]
        POP     {R4, R5}
        BX      LR
        NOP



PendSV_Handler
    CPSID   I                                                   ; Prevent interruption during context switch
    MRS     R0, PSP                                            
    CBZ     R0, PendSV_Handler_Nosave                           ; Skip register save the first time

    SUBS    R0, R0, #0x20                                       ; Save remaining regs r4-11 on process stack
    STM     R0, {R4-R11}

    LDR     R1, =OSTCBCur                                       ; OSTCBCur->OSTCBStkPtr = SP;
    LDR     R1, [R1]
    STR     R0, [R1]                                            ; R0 is SP of process being switched out

                                                                ; At this point, entire context of process has been saved
PendSV_Handler_Nosave
    PUSH    {R14}                                               ; Save LR exc_return value
    LDR     R0, =OSTaskSwHook                                   ; OSTaskSwHook();
    BLX     R0
    POP     {R14}

    LDR     R0, =OSPrioCur                                      ; OSPrioCur = OSPrioHighRdy;
    LDR     R1, =OSPrioHighRdy
    LDRB    R2, [R1]
    STRB    R2, [R0]

    LDR     R0, =OSTCBCur                                       ; OSTCBCur  = OSTCBHighRdy;
    LDR     R1, =OSTCBHighRdy
    LDR     R2, [R1]
    STR     R2, [R0]

    LDR     R0, [R2]                                            ; R0 is new process SP; SP = OSTCBHighRdy->OSTCBStkPtr;
    LDM     R0, {R4-R11}                                        ; Restore r4-11 from new process stack
    ADDS    R0, R0, #0x20
    MSR     PSP, R0                                             ; Load PSP with new process SP
    ORR     LR, LR, #0x04                                       ; Ensure exception return uses process stack
    CPSIE   I
    BX      LR                                                  ; Exception return will restore remaining context

 end  

顺便说一句,似乎版本中的任何中文字符都会被视为垃圾邮件作为防止垃圾邮件的方法?所以我必须删除我代码中的所有中文注释。

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