SDK调试遇到DataAbortHandler问题。 运行后不显示结果,debug模式下发现进入DataAbortHandler异常函数。程序中存在大数组。 原因:SDK默认的堆栈为1024bytes,需要将堆栈调大。 修改方法: 解决:对application中src下的lscript.ld双击,对stack and heap sizes进行修改,改成较大尺寸。
HandlerPabortsub sp,sp,#4;decrement sp(to store jump address) stmfd sp!,{r0} ;PUSH the work register to stack(lr does''t push because itreturnto original address) ldr r0,=$HandlePabort ;load the address of HandleXXX to r0 ldr r0,[r0] ;load the contents(service routine start addres...
Xil_Out32((BaseAddr) + (u32)(RegOffset), (u32)(Data))extern u8 intflag;int main(){ init...
svc模式进入data abort svc模式进入data abort,也就是Linux的内核模式进入data aboart时,会跳转到__dabt_svc。 __dabt_svc: svc_entry @保护寄存器现场 mrs r9, cpsr tst r3, #PSR_I_BIT@检查是否要开中断 biceq r9, r9, #PSR_I_BIT bl CPU_DABORT_HANDLER @处理异常之前的准备工作 msr cpsr_c, r9...
HandlerPabort HANDLER HandlePabort HandlerPabort HANDLER HandlePabort 展开: { HandlerPabort sub sp,sp,#4 ;decrement sp(to store jump address) stmfd sp!,{r0} ;PUSH the work register to stack(lr does''t push because it return to original address) ...
NKSetDataAbortHandler (Windows CE 5.0)项目 2012/09/14 Send FeedbackThis function is supplied to allow an OEM to replace the default abort handler on an ARM built OS.复制 PFNVOID NKSetDataAbortHandler(PFNVOIDpfnDataAbortHandler); Parameters...
This function is specific to ARM and XScale processors, excluding StrongARM, and is called from the kernel when a data abort occurs.Syntax复制 void OEMDataAbortHandler(void); ParametersNone.Return ValueNone.RemarksThis function is required for ARM7 class CPUs to handle base-register updates.O...
Data Abort 可能是内部同步异常,也可能是同步External Abort (即 External abort 可以属于同步异常哦) 4、instruction abort、data abort 在aarch64架构中,instruction abort、data abort已然变成了同步异常中的一种。不再是单独的异常模型了。所以当出现instruction abort、data abort时,那么一定是同步异常,可能是interna...
On Pi 3+, 4.14 branch, I occasionally get a kernel panic on boot. With a "bad mode in data abort handler detected" message, and PC at dwc_otg_fiq_fsm Probably some rare timing specific problem, as: it only happens occasionally. can no lo...
My application for an Arm7 or Arm9 based microcontroller does not work. When I run it in the simulator or with my JTAG debugger (ULINK), I see that the program counter (R15) jumps to the labelDAbt_Handler?A. What does that mean? How can I find the location where my application cra...