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| author | Jessica Hamilton <jessica.l.hamilton@gmail.com> | 2014-05-04 12:03:11 +1200 |
|---|---|---|
| committer | Jessica Hamilton <jessica.l.hamilton@gmail.com> | 2014-05-27 05:35:38 +1200 |
| commit | 4ffdf2ed40845d8fb856a1a3ca5b5e74616850e9 (patch) | |
| tree | a8da7c964b53fe8902db3942bfd59dccd0c32a8f | |
| parent | 36764b40013b19746e6caa041ab3f5100c84a4c2 (diff) | |
* Introduced in gcc-4.3 for at least Intel platforms
* On ARM, full support added in gcc-4.8
* Other platforms untested, left as-is
* This introduces a breaking change to the ABI for gcc4
| -rw-r--r-- | headers/os/support/ByteOrder.h | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/headers/os/support/ByteOrder.h b/headers/os/support/ByteOrder.h index 96e996119d..9952769ff4 100644 --- a/headers/os/support/ByteOrder.h +++ b/headers/os/support/ByteOrder.h @@ -111,19 +111,28 @@ typedef enum { #ifdef __cplusplus extern "C" { -#endif +#endif extern status_t swap_data(type_code type, void *data, size_t length, swap_action action); extern bool is_type_swapped(type_code type); - /* Private implementations */ extern double __swap_double(double arg); extern float __swap_float(float arg); +#if (defined(__INTEL__) || defined(__x86_64__)) && GCC_VERSION >= 40300 +#define __swap_int64(arg) __builtin_bswap64(arg) +#define __swap_int32(arg) __builtin_bswap32(arg) +#define __swap_int16(arg) __builtin_bswap16(arg) +#elif defined(__ARM__) && GCC_VERSION >= 40800 +#define __swap_int64(arg) __builtin_bswap64(arg) +#define __swap_int32(arg) __builtin_bswap32(arg) +#define __swap_int16(arg) __builtin_bswap16(arg) +#else extern uint64 __swap_int64(uint64 arg); extern uint32 __swap_int32(uint32 arg); extern uint16 __swap_int16(uint16 arg); +#endif #ifdef __cplusplus } |