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

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Date:   Fri, 21 Dec 2018 05:36:41 +0300
From:   "Dmitry V. Levin" <ldv@...linux.org>
To:     Guo Ren <guoren@...nel.org>
Cc:     linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 08/27] csky: define syscall_get_arch()

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?
 
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

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