linux-kernel - Re: [PATCH 10/19] csky: Signal handling

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Date:   Tue, 27 Mar 2018 10:41:11 +0800
From:   Guo Ren <ren_guo@...ky.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     linux-arch <linux-arch@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Jason Cooper <jason@...edaemon.net>,
        c-sky_gcc_upstream@...ky.com, gnu-csky@...tor.com,
        thomas.petazzoni@...tlin.com, wbx@...ibc-ng.org
Subject: Re: [PATCH 10/19] csky: Signal handling

On Mon, Mar 26, 2018 at 03:04:01PM +0200, Arnd Bergmann wrote:
> On Sun, Mar 18, 2018 at 8:51 PM, Guo Ren <ren_guo@...ky.com> wrote:
> > Signed-off-by: Guo Ren <ren_guo@...ky.com>
> > ---
> >  arch/csky/include/uapi/asm/sigcontext.h |  33 +++
> >  arch/csky/include/uapi/asm/signal.h     | 164 ++++++++++++++
> >  arch/csky/kernel/signal.c               | 379 ++++++++++++++++++++++++++++++++
> >  3 files changed, 576 insertions(+)
> 
> Please have a look at arch/riscv and arch/nds32 for this, I think it can be
> simplified. This is an incompatible change of course, but when we change
> the system call ABI anyway, that is the right time to do it.
Ok.

> 
> 
> > +#define NSIG           32
> > +typedef unsigned long sigset_t;
> > +
> > +#endif /* __KERNEL__ */
> > +
> > +#define SIGHUP          1
> > +#define SIGINT          2
> > +#define SIGQUIT                 3
> > +#define SIGILL          4
> > +#define SIGTRAP                 5
> > +#define SIGABRT                 6
> > +#define SIGIOT          6
> > +#define SIGBUS          7
> > +#define SIGFPE          8
> > +#define SIGKILL                 9
> > +#define SIGUSR1                10
> > +#define SIGSEGV                11
> > +#define SIGUSR2                12
> > +#define SIGPIPE                13
> 
> In particular the constants should come from the asm-generic headers
> rather than being duplicated. If you need anything special, it may be
> better to modify the generic headers.
Ok, use asm-generic.

Best Regards
 Guo Ren