Created
December 5, 2009 07:21
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| // a) As Mac OS X does not have byteswap.h | |
| // needed this for a c util I had used over the years on linux. | |
| // did not find a solution to stopgap via macports, sadly, but this did the trick | |
| #if HAVE_BYTESWAP_H | |
| #include <byteswap.h> | |
| #else | |
| #define bswap_16(value) \ | |
| ((((value) & 0xff) << 8) | ((value) >> 8)) | |
| #define bswap_32(value) \ | |
| (((uint32_t)bswap_16((uint16_t)((value) & 0xffff)) << 16) | \ | |
| (uint32_t)bswap_16((uint16_t)((value) >> 16))) | |
| #define bswap_64(value) \ | |
| (((uint64_t)bswap_32((uint32_t)((value) & 0xffffffff)) \ | |
| << 32) | \ | |
| (uint64_t)bswap_32((uint32_t)((value) >> 32))) | |
| #endif | |
| (b) change this line 357 to | |
| while((c = getopt(argc, argv, "hvi::o::p:k::")) != -1){ |
Thanks.
@atr000 This does not work?
#if defined(__APPLE__)
// Mac OS X / Darwin features
#include <libkern/OSByteOrder.h>
#define bswap_16(x) OSSwapInt16(x)
#define bswap_32(x) OSSwapInt32(x)
#define bswap_64(x) OSSwapInt64(x)
#endif
How about something as simple as this?
#define bswap_16 __builtin_bswap16
#define bswap_32 __builtin_bswap32
#define bswap_64 __builtin_bswap64
// a) As Mac OS X does not have byteswap.h
// needed this for a c util I had used over the years on linux.
// did not find a solution to stopgap via macports, sadly, but this did the trick
#if HAVE_BYTESWAP_H
#include <byteswap.h>
#else
#define bswap_16 __builtin_bswap16
#define bswap_32 __builtin_bswap32
#define bswap_64 __builtin_bswap64
#endif
@robotarmy MacOS has everything needed in libkern/OSByteOrder.h.
@robotarmy MacOS has everything needed in
libkern/OSByteOrder.h.
It's not always available. For example in DriverKit (or please tell me how!).
@Baekalfen Do you mean it was removed from some of the recent SDK? (Or what is implied by always?)
@Baekalfen Do you mean it was removed from some of the recent SDK? (Or what is implied by always?)
libkern is generally available on macOS, but I found that it wouldn't work when I was developing this driver: MacVFN
Don't remember if the include was missing, or it was ifdef'ed out
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Thanks for this! Worked perfectly 👍