[LTP] Ping: [PATCH] uapi: Make __{u, s}64 match {u, }int64_t in userspace

Cyril Hrubis chrubis@suse.cz
Fri Jun 17 17:04:12 CEST 2022


Hi!
> >>> I could be persuaded otherwise with an example of a program for which
> >>> changing __s64 from 'long long' to 'long' would break *binary* backward
> >>> compatibility, or similarly for __u64.
> >>
> >> C++ could break.
> > 
> > Thinking of this again we can detect C++ as well so it can be safely
> > enabled just for C with:
> > 
> > #if !defined(__KERNEL__) && !defined(__cplusplus) && __BITSPERLONG == 64
> > # include <asm-generic/int-l64.h>
> > #else
> > # include <asm-generic/int-ll64.h>
> > #endif
> > 
> 
> I'm very interested in seeing this merged, as that would allow 
> simplifying the man-pages by removing unnecessary kernel details such as 
> u64[1].  How is the state of this patch?

I guess that it stalled because I haven't posted it as an actual patch,
I should do so to get this back on a track.

-- 
Cyril Hrubis
chrubis@suse.cz


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