projects / fio.git / blame
| Commit | Line | Data |
|---|---|---|
| b7759568 SC |
1 | #include <stdint.h> |
| 2 | #include "os/os.h" | |
| 3 | ||
| 4 | int endian_check(void) | |
| 5 | { | |
| 6 | union { | |
| 7 | uint8_t c[8]; | |
| 8 | uint64_t v; | |
| 9 | } u; | |
| 10 | int le = 0, be = 0; | |
| 11 | ||
| 12 | u.v = 0x12; | |
| 13 | if (u.c[7] == 0x12) | |
| 14 | be = 1; | |
| 15 | else if (u.c[0] == 0x12) | |
| 16 | le = 1; | |
| 17 | ||
| 18 | #if defined(FIO_LITTLE_ENDIAN) | |
| 19 | if (be) | |
| 20 | return 1; | |
| 21 | #elif defined(FIO_BIG_ENDIAN) | |
| 22 | if (le) | |
| 23 | return 1; | |
| 24 | #else | |
| 25 | return 1; | |
| 26 | #endif | |
| 27 | ||
| 28 | if (!le && !be) | |
| 29 | return 1; | |
| 30 | ||
| 31 | return 0; | |
| 32 | } | |
| 33 |