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Improve include logic for <arm_acle.h> under GCC

pull/174/head
Jeffrey Walton 2016-05-06 06:56:08 -04:00
parent f86aca7258
commit d37afa9ab0
1 changed files with 4 additions and 1 deletions
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5
cpu.h
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@ -20,7 +20,7 @@
# if CRYPTOPP_BOOL_NEON_INTRINSICS_AVAILABLE # if CRYPTOPP_BOOL_NEON_INTRINSICS_AVAILABLE
# include <arm_neon.h> # include <arm_neon.h>
# endif # endif
# if (__ARM_ACLE >= 200) # if defined(__ARM_FEATURE_CRC32) || (__ARM_ACLE >= 200)
# include <arm_acle.h> # include <arm_acle.h>
# endif # endif
#endif // ARM-32 or ARM-64 #endif // ARM-32 or ARM-64
@ -242,6 +242,7 @@ void CRYPTOPP_API DetectArmFeatures();
//! \brief Determine if an ARM processor has Advanced SIMD available //! \brief Determine if an ARM processor has Advanced SIMD available
//! \returns true if the hardware is capable of Advanced SIMD at runtime, false otherwise. //! \returns true if the hardware is capable of Advanced SIMD at runtime, false otherwise.
//! \details Runtime support requires compile time support.
inline bool HasNEON() inline bool HasNEON()
{ {
if (!g_ArmDetectionDone) if (!g_ArmDetectionDone)
@ -251,6 +252,8 @@ inline bool HasNEON()
//! \brief Determine if an ARM processor has CRC32 available //! \brief Determine if an ARM processor has CRC32 available
//! \returns true if the hardware is capable of CRC32 at runtime, false otherwise. //! \returns true if the hardware is capable of CRC32 at runtime, false otherwise.
//! \details Runtime support requires compile time support. When compiling with GCC, you may
//! need to compile with <tt>-march=armv8-a+crc</tt>.
inline bool HasCRC32() inline bool HasCRC32()
{ {
if (!g_ArmDetectionDone) if (!g_ArmDetectionDone)