[PATCH v6] Implement -e trace=%statfs option for tracing statfs like syscalls

[Dmitry V. Levin]

On Tue, Mar 28, 2017 at 09:40:48AM +0530, Abhishek Tiwari wrote:
> >> Sir,
> >> the statfs64.test file calls the statfs.test itself.
> >> On adding 17 statfs64 to my test file gives error
> >>
> >> undefined: __NR_statfs64
> > This is quite possible on 64-bit architectures, as they have no need in
> > a separate syscall for retrieving some 64-bit values (like st_size and
> > st_blocks).
> >
> >> Is adding following entries correct ?
> > Not really.
> >
> >> In file tests/scno.h:
> >>
> >> #ifndef __NR_statfs
> >> # define __NR_statfs64 (SYSCALL_BIT | 332 )
> > Note that this file is generated (as it is stated in its header), as it
> > is ABI-dependent.
> >
> >> Is adding it to last entry fine ?
> >>
> >> In file tests/ksysent.h:
> >>
> >> #ifdef __NR_statfs
> >> [__NR_statfs64 & 0xffff] = "statfs64",
> >>
> 
> Sir, how to overcome error to test for statfs64 ?

Why do you insist on testing a syscall on an architecture that
neither declares nor implements it?


-- 
ldv
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