[Bug] IAR编译M4内核报错

[TianTsingmo]

RT-Thread Version

master

Hardware Type/Architectures

ARM contex-M4内核系列

Develop Toolchain

IAR

Describe the bug

IAR 7.8~9.7编译M4内核工程报错，提示cpuport.c中__iar_builtin_rsr报错

经排查，错误来源自#11316提交

Other additional context

No response

[TianTsingmo]

#11316

[wdfk-prog]

#11316

• 请问你能尝试修复一下提交pr吗?或者怎么样才能编译通过?
• 由于我手上没有IAR的编译器,这一段是没有验证的

[TianTsingmo]

#11316

• 请问你能尝试修复一下提交pr吗?或者怎么样才能编译通过?
• 由于我手上没有IAR的编译器,这一段是没有验证的

可以采用GNU一样的处理，直接汇编即可，同样修复的还有PREMASK
/**
\brief Get IPSR Register
\details Returns the content of the IPSR Register.
\return IPSR Register value
*/
rt_inline rt_uint32_t rt_hw_get_ipsr(void)
{
#if defined(__CC_ARM)
register uint32_t __regIPSR __asm("ipsr");
return(__regIPSR);
#elif defined(clang)
uint32_t result;
__asm volatile ("MRS %0, ipsr" : "=r" (result) );
return(result);
#elif defined(IAR_SYSTEMS_ICC)
uint32_t result;
__asm volatile ("MRS %0, ipsr" : "=r" (result) );
return(result);
#elif defined ( GNUC )
uint32_t result;
__asm volatile ("MRS %0, ipsr" : "=r" (result) );
return(result);
#endif
}

/**
\brief Get PRIMASK Register
\details Returns the content of the PRIMASK Register.
\return PRIMASK Register value
*/
rt_inline rt_uint32_t rt_hw_get_primask_value(void)
{
#if defined(__CC_ARM)
register uint32_t __regPRIMASK __asm("primask");
return (__regPRIMASK);
#elif defined(clang)
uint32_t result;
__asm volatile ("MRS %0, primask" : "=r" (result));
return result;
#elif defined(IAR_SYSTEMS_ICC)
uint32_t result;
__asm volatile ("MRS %0, primask" : "=r" (result));
return result;
#elif defined(GNUC)
uint32_t result;
__asm volatile ("MRS %0, primask" : "=r" (result));
return result;
#endif
}