Re: [PATCH 1/2] linux: Consolidate sigaction implementation

[Andreas Schwab <schwab at suse dot de>]

On Nov 17 2017, Adhemerval Zanella <adhemerval.zanella@linaro.org> wrote:

>   - All architectures now define and use a kernel_sigaction struct meant
>     for the syscall, even for the architectures where the user sigaction
>     has the same layout of the kernel expected one (s390-64 and ia64).
>     Although it requires more work for these architectures, it simplifies
>     the generic implementation. Also, sigaction is hardly a hotspot where
>     micro optimization would play an important role.
>
>   - The generic kernel_sigaction definition is now aligned with expected
>     UAPI one for newer ports, where SA_RESTORER and sa_restorer is not
>     expected to be defined.  This means adding kernel_sigaction for
>     current architectures that does define it (m68k, nios2, powerpc, s390,
>     sh, sparc, and tile) and which rely on previous generic definition.

There is no need to define kernel_sigaction in more than one file, since
it is the same (except for the presense of sa_restorer) for all
architectures.

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
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