linux-kernel - Re: [PATCH v6 08/27] csky: define syscall_get

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Message-ID: <20181221144836.GA4267@guoren-Inspiron-7460>
Date:   Fri, 21 Dec 2018 22:48:36 +0800
From:   Guo Ren <guoren@...nel.org>
To:     "Dmitry V. Levin" <ldv@...linux.org>
Cc:     linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 08/27] csky: define syscall_get_arch()

On Fri, Dec 21, 2018 at 05:36:41AM +0300, Dmitry V. Levin wrote:
> Hi,
> 
> On Fri, Dec 14, 2018 at 12:44:12PM +0800, Guo Ren wrote:
> > Thx Dmitry,
> > 
> > Reviewed-by: Guo Ren <guoren@...nel.org>
> 
> Given that the whole series is going to be pinged for quite some
> time yet, would you mind taking this patch into the csky tree?
OK.

Best Regards
 Guo Ren

>  
> Thanks.
> 
> > On Thu, Dec 13, 2018 at 08:22:07PM +0300, Dmitry V. Levin wrote:
> > > syscall_get_arch() is required to be implemented on all architectures
> > > in order to extend the generic ptrace API with PTRACE_GET_SYSCALL_INFO
> > > request.
> > > 
> > > Cc: Guo Ren <guoren@...nel.org>
> > > Cc: Paul Moore <paul@...l-moore.com>
> > > Cc: Eric Paris <eparis@...hat.com>
> > > Cc: Oleg Nesterov <oleg@...hat.com>
> > > Cc: Andy Lutomirski <luto@...nel.org>
> > > Cc: Elvira Khabirova <lineprinter@...linux.org>
> > > Cc: Eugene Syromyatnikov <esyr@...hat.com>
> > > Cc: linux-audit@...hat.com
> > > Signed-off-by: Dmitry V. Levin <ldv@...linux.org>
> > > ---
> > > 
> > > Notes:
> > >     v6: unchanged
> > > 
> > >  arch/csky/include/asm/syscall.h | 7 +++++++
> > >  include/uapi/linux/audit.h      | 1 +
> > >  2 files changed, 8 insertions(+)
> > > 
> > > diff --git a/arch/csky/include/asm/syscall.h b/arch/csky/include/asm/syscall.h
> > > index 926a64a8b4ee..d637445737b7 100644
> > > --- a/arch/csky/include/asm/syscall.h
> > > +++ b/arch/csky/include/asm/syscall.h
> > > @@ -6,6 +6,7 @@
> > >  #include <linux/sched.h>
> > >  #include <linux/err.h>
> > >  #include <abi/regdef.h>
> > > +#include <uapi/linux/audit.h>
> > >  
> > >  static inline int
> > >  syscall_get_nr(struct task_struct *task, struct pt_regs *regs)
> > > @@ -68,4 +69,10 @@ syscall_set_arguments(struct task_struct *task, struct pt_regs *regs,
> > >  	memcpy(&regs->a1 + i * sizeof(regs->a1), args, n * sizeof(regs->a0));
> > >  }
> > >  
> > > +static inline int
> > > +syscall_get_arch(void)
> > > +{
> > > +	return AUDIT_ARCH_CSKY;
> > > +}
> > > +
> > >  #endif	/* __ASM_SYSCALL_H */
> > > diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h
> > > index 72aeea0a740d..55904a40d768 100644
> > > --- a/include/uapi/linux/audit.h
> > > +++ b/include/uapi/linux/audit.h
> > > @@ -384,6 +384,7 @@ enum {
> > >  #define AUDIT_ARCH_C6X		(EM_TI_C6000|__AUDIT_ARCH_LE)
> > >  #define AUDIT_ARCH_C6XBE	(EM_TI_C6000)
> > >  #define AUDIT_ARCH_CRIS		(EM_CRIS|__AUDIT_ARCH_LE)
> > > +#define AUDIT_ARCH_CSKY		(EM_CSKY|__AUDIT_ARCH_LE)
> > >  #define AUDIT_ARCH_FRV		(EM_FRV)
> > >  #define AUDIT_ARCH_I386		(EM_386|__AUDIT_ARCH_LE)
> > >  #define AUDIT_ARCH_IA64		(EM_IA_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
> > > -- 
> > > ldv
> 
> -- 
> ldv