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Prevent Clang errors and warnings when building CMSIS. #8

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Prevent Clang errors and warnings when building CMSIS. #8

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d0295f4
CMSIS/cmsis_gcc.h: Fixed clang error
oliviermartin Nov 23, 2015
cea527e
CMSIS/RTX: Prevent warning 'unknown pragma' with Clang
oliviermartin Nov 23, 2015
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4 changes: 4 additions & 0 deletions CMSIS/Include/cmsis_gcc.h
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Original file line number Diff line number Diff line change
Expand Up @@ -335,11 +335,15 @@ __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __get_FPSCR(void)
__attribute__( ( always_inline ) ) __STATIC_INLINE void __set_FPSCR(uint32_t fpscr)
{
#if (__FPU_PRESENT == 1U) && (__FPU_USED == 1U)
#ifdef __clang__
__builtin_arm_set_fpscr(fpscr);
#else
/* Empty asm statement works as a scheduling barrier */
__ASM volatile ("");
__ASM volatile ("VMSR fpscr, %0" : : "r" (fpscr) : "vfpcc");
__ASM volatile ("");
#endif
#endif
}

#endif /* (__CORTEX_M == 0x04U) || (__CORTEX_M == 0x07U) */
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2 changes: 2 additions & 0 deletions CMSIS/RTOS/RTX/INC/RTX_CM_lib.h
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Expand Up @@ -36,7 +36,9 @@
#pragma O3
#define __USED __attribute__((used))
#elif defined (__GNUC__)
#if !defined(__clang__)
#pragma GCC optimize ("O3")
#endif
#define __USED __attribute__((used))
#elif defined (__ICCARM__)
#define __USED __root
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