core_cm3.c错误的原因

固件库编程：关于core_cm3.c的错误然后编译发现如下错误和警告：…/CMSIS/CM3/core_cm3.c(445): error: non-ASM statement in naked function is not supporteduint32_t result=0;^…/CMSIS/CM3/core_cm3.c(442): note: attribute is hereuint32_t __get_PSP(void) attribute( ( naked ) );^…/CMS