通过lr-=4计算出触发异常前的指令地址,同时保存r0-r3和lr入undef_exception stack用于最后恢复现场和取得异常指令本身,随后进入分发程序CommonHandler.CommonHandler是一个公共的异常服务程序,它通过不同的传入参数来进行处理,在这里mov r1,#ID_UNDEF_INSTR就是指定异常模式为undef Exception....
device drvier在initialize过程中,肯定有个初始化中断的过程. 典型的做法是首先调用GetISRInfo函数从注册表里把IRQ和SysIntr读出来(当然同时还读了InterfaceType, BusNumber等其他东东), 然后前面会声明个m_hISTEvent的handler, 在这里就CreatEvent, 建立IST事件. 如果EVENT建立成功, 下面就InterruptInitialize(SysIntr,...
(Xil_ExceptionHandler)XFsbl_UndefHandler,(void*)0);Xil_ExceptionRegisterHandler(XIL_EXCEPTION_ID_SWI_INT, (Xil_ExceptionHandler)XFsbl_SvcHandler,(void*)0);Xil_ExceptionRegisterHandler(XIL_EXCEPTION_ID_PREFETCH_ABORT_INT, (Xil_ExceptionHandler)XFsbl_PreFetchAbortHandler,(void*)0);Xil_ExceptionRegister...
To detect the error type that was triggered in the fault handler, the Cortex-M33 processor has several Fault Status Registers (FSRs). The status bits inside these FSRs indicate the fault type that has been detected. Although it might not pin-point exactly when or where things had gone wrong...
(1) 《Arm® Architecture Reference Manual Armv8, for Armv8-A architecture profile - The AArch64 System Level Memory Model D4.4 Cache support》。 (2)ARMV8 datasheet学习笔记4:AArch64系统级体系结构之编程模型(1)-EL/ET/ST(注意本文部分描述有误)...
Therefore, there will be a short time frame where an exception handler will be entered in ARM state (for example, Prefetch or Data abort). In case the handler routine is coded with Thumb(2) instructions, this might result in a deadlock of the processor trying to execute the undefined ...
(handler=<optimized out>) at /usr/src/debug/gcc/gcc/libstdc++-v3/libsupc++/eh_terminate.cc:48 #5 0x00007f5763cb0189 in std::terminate () at /usr/src/debug/gcc/gcc/libstdc++-v3/libsupc++/eh_terminate.cc:58 #6 0x00007f5763cb0ec7 in __cxxabiv1::__cxa_pure_virtual () at /...
#include "stdlib.h" /* abort() */ #include "xxhash.h" XXH64_hash_t calcul_hash_streaming(FileHandler fh) { /* create a hash state */ XXH64_state_t* const state = XXH64_createState(); if (state==NULL) abort(); size_t const bufferSize = SOME_SIZE; void* const buffer = mal...