*.s files cannot be correctly assembled in visualGDB - stm32

Question

I am new to visualGDB. Recently I new a stm32 stand-alone project, any .cpp and .c files could be compiled correctly, but when i migrated µC/OS-II into the project, I found os_cpu_a.s file couldn't be assembled correctly.
Error logs are shown as follows:
And my Makefile flags setting is:
Please give me some suggestions! Any help will be appreciated!
os_cpu_a.s files content is shown below:
;/*********************** (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
By the way, it seems that any chinese character in edition will be treated as spam as a spam prevention method?So i have to delete all chinese comment in my code.