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| author | H.J. Lu <hjl.tools@gmail.com> | 2016-07-11 15:32:10 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2016-07-11 15:32:23 -0700 |
| commit | cf1ad5b3add36790cbf58a3972c492a8f1632929 (patch) | |
| tree | 941623f93e951e3ad7ee23b6becef195c68f1750 /sysdeps/unix | |
| parent | c10f90dcef42092a96007fed7e77f9d470e5bb76 (diff) | |
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X86-64: Define LO_HI_LONG to skip pos_h [BZ #20349]
Define LO_HI_LONG to skip pos_h since it is ignored by kernel:
static inline loff_t pos_from_hilo(unsigned long high, unsigned long low)
{
#define HALF_LONG_BITS (BITS_PER_LONG / 2)
return (((loff_t)high << HALF_LONG_BITS) << HALF_LONG_BITS) | low;
}
where size of loff_t == size of long.
[BZ #20349]
* sysdeps/unix/sysv/linux/x86_64/sysdep.h (LO_HI_LONG): New.
Diffstat (limited to 'sysdeps/unix')
| -rw-r--r-- | sysdeps/unix/sysv/linux/x86_64/sysdep.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/x86_64/sysdep.h b/sysdeps/unix/sysv/linux/x86_64/sysdep.h index d023d68174..1a671e1819 100644 --- a/sysdeps/unix/sysv/linux/x86_64/sysdep.h +++ b/sysdeps/unix/sysv/linux/x86_64/sysdep.h @@ -385,4 +385,8 @@ # endif #endif +/* How to pass the off{64}_t argument on p{readv,writev}{64}. */ +#undef LO_HI_LONG +#define LO_HI_LONG(val) (val) + #endif /* linux/x86_64/sysdep.h */ |