一、打印far、fsr寄存器，进行错误确认。
unsigned int far, fsr; __asm__ ("MRC p15, 0, %0, c6, c0, 0" : "=r" far); __asm__ ("MRC p15, 0, %0, c5, c0, 0" : "=r" fsr); printf("far = %x, fsr = %x\n", far, fsr);
[ARM DEBUG] 打印ARM far与fsr寄存器
原文：https://www.cnblogs.com/smilingsusu/p/11927133.html
