diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/common/tusb_compiler.h | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/src/common/tusb_compiler.h b/src/common/tusb_compiler.h index 713bbb8d4..5ab56e145 100644 --- a/src/common/tusb_compiler.h +++ b/src/common/tusb_compiler.h @@ -138,10 +138,14 @@ #define TU_ATTR_BIT_FIELD_ORDER_BEGIN #define TU_ATTR_BIT_FIELD_ORDER_END - #if __has_attribute(__fallthrough__) - #define TU_ATTR_FALLTHROUGH __attribute__((fallthrough)) - #else + #if __GNUC__ < 5 #define TU_ATTR_FALLTHROUGH do {} while (0) /* fallthrough */ + #else + #if __has_attribute(__fallthrough__) + #define TU_ATTR_FALLTHROUGH __attribute__((fallthrough)) + #else + #define TU_ATTR_FALLTHROUGH do {} while (0) /* fallthrough */ + #endif #endif // Endian conversion use well-known host to network (big endian) naming @@ -151,8 +155,17 @@ #define TU_BYTE_ORDER TU_BIG_ENDIAN #endif - #define TU_BSWAP16(u16) (__builtin_bswap16(u16)) - #define TU_BSWAP32(u32) (__builtin_bswap32(u32)) + // Unfortunately XC16 doesn't provide builtins for 32bit endian conversion + #if defined(__XC16) + #define TU_BSWAP16(u16) (__builtin_swap(u16)) + #define TU_BSWAP32(u32) ((((u32) & 0xff000000) >> 24) | \ + (((u32) & 0x00ff0000) >> 8) | \ + (((u32) & 0x0000ff00) << 8) | \ + (((u32) & 0x000000ff) << 24)) + #else + #define TU_BSWAP16(u16) (__builtin_bswap16(u16)) + #define TU_BSWAP32(u32) (__builtin_bswap32(u32)) + #endif #ifndef __ARMCC_VERSION // List of obsolete callback function that is renamed and should not be defined. |