GCC移植perf_counterGCC移植perf_counter
GCC移植perf_counter从github上获取源代码git clone https://github.com/GorgonMeducer/perf_counter.git拷贝需要的源代码perf_counter.cperf_counter.hperf_os_patch_freertos.csystick_wrapper_gcc.s注意事项：要在启动代码中注释掉默认的 Weak版本的 SysTick_Handler的函数实体 @ .weak SysTick_Handl
