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Message-ID: <20190325121754.GB19244@altlinux.org>
Date: Mon, 25 Mar 2019 15:17:54 +0300
From: "Dmitry V. Levin" <ldv@...linux.org>
To: Guo Ren <guoren@...nel.org>
Cc: arnd@...db.de, linux-arch@...r.kernel.org,
strace-devel@...ts.strace.io, linux-kernel@...r.kernel.org,
ren_guo@...ky.com
Subject: Re: [PATCH] csky: Update syscall_trace_enter/exit implementation
On Mon, Mar 25, 2019 at 08:03:39PM +0800, guoren@...nel.org wrote:
[...]
> diff --git a/arch/csky/include/uapi/asm/ptrace.h b/arch/csky/include/uapi/asm/ptrace.h
> index a4eaa8d..9bf5b1a 100644
> --- a/arch/csky/include/uapi/asm/ptrace.h
> +++ b/arch/csky/include/uapi/asm/ptrace.h
> @@ -62,6 +62,11 @@ struct user_fp {
> #define instruction_pointer(regs) ((regs)->pc)
> #define profile_pc(regs) instruction_pointer(regs)
>
> +static inline unsigned long regs_return_value(struct pt_regs *regs)
> +{
> + return regs->a0;
> +}
> +
> #endif /* __KERNEL__ */
> #endif /* __ASSEMBLY__ */
> #endif /* _CSKY_PTRACE_H */
I wonder why we have this #ifdef __KERNEL__ code in the uapi namespace,
it defeats the idea of uapi. Doesn't it belong to non-uapi
include/asm/ptrace.h namespace?
--
ldv
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