[update] FPU支持HardFault_Handler

Middlewares/coredump/coredump_cmd.S

@@ -54,45 +54,52 @@ coredump_cmd_asm:
 	POP {r0} /* xpsr */
         BX      LR
 
-	IMPORT rt_hw_hard_fault_exception
-	EXPORT HardFault_Handler
+    IMPORT rt_hw_hard_fault_exception
+    EXPORT HardFault_Handler
 HardFault_Handler:
 
-	; get current context
-	MRS 	r0, msp 				; get fault context from handler.
-	TST 	lr, #0x04				; if(!EXC_RETURN[2])
-	BEQ 	_get_sp_done
-	MRS 	r0, psp 				; get fault context from thread.
+    ; get current context
+    MRS     r0, msp                 ; get fault context from handler.
+    TST     lr, #0x04               ; if(!EXC_RETURN[2])
+    BEQ     _get_sp_done
+    MRS     r0, psp                 ; get fault context from thread.
 _get_sp_done
 
-	STMFD	r0!, {r4 - r11} 		; push r4 - r11 register
-	;STMFD	 r0!, {lr}				 ; push exec_return register
 #if defined ( __ARMVFP__ )
-	MOV  R1, #0   ; not use FPU
-	TST  lr, #(1<<4)
-	BNE  _set_flag_done
-	MOV  R1, #1   ; use FPU
-_set_flag_done	  
-	SUB 	r0, r0, #0x04			; push dummy for flag
-	STR 	R1, [r0]
+    TST     lr, #0x10               ; if(!EXC_RETURN[4])
+    BNE     skip_push_fpu
+    VSTMDB  r0!, {d8 - d15}         ; push FPU register s16~s31
+skip_push_fpu
 #endif
-	SUB 	r0, r0, #0x04
-	STR 	lr, [r0]
 
-	TST 	lr, #0x04				; if(!EXC_RETURN[2])
-	BEQ 	_update_msp
-	MSR 	psp, r0 				; update stack pointer to PSP.
-	B		_update_done
+    STMFD   r0!, {r4 - r11}         ; push r4 - r11 register
+
+#if defined ( __ARMVFP__ )
+    MOV     r4, #0x00               ; flag = 0
+    TST     lr, #0x10               ; if(!EXC_RETURN[4])
+    BNE     push_flag
+    MOV     r4, #0x01               ; flag = 1
+push_flag
+    STMFD   r0!, {r4}              ; push flag
+#endif
+
+    STMFD   r0!, {lr}              ; push flag
+
+    TST     lr, #0x04               ; if(!EXC_RETURN[2])
+    BEQ     _update_msp
+    MSR     psp, r0                 ; update stack pointer to PSP.
+    B       _update_done
 _update_msp
-	MSR 	msp, r0 				; update stack pointer to MSP.
+    MSR     msp, r0                 ; update stack pointer to MSP.
 _update_done
 
-	PUSH	{lr}
-	BL		rt_hw_hard_fault_exception
-	POP 	{lr}
+    PUSH    {lr}
+    BL      rt_hw_hard_fault_exception
+    POP     {lr}
+
+    ORR     lr, lr, #0x04
+    BX      lr
+
+    END
 
-	ORR 	lr, lr, #0x04
-	BX		lr
-        
-        END
 

Middlewares/rtthread/rtconfig.h

@@ -67,7 +67,7 @@
 
 // <e>Software timers Configuration
 // <i> Enables user timers
-#define RT_USING_TIMER_SOFT         0
+#define RT_USING_TIMER_SOFT         1
 #if RT_USING_TIMER_SOFT == 0
     #undef RT_USING_TIMER_SOFT
 #endif