linux-kernel - Re: [PATCH 2/4] LoongArch: Add prologue unwinder support

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Message-ID: <1afd44fab8dacdda7927b6e699bf74c8a1cad773.camel@xry111.site>
Date:   Tue, 02 Aug 2022 09:39:00 +0800
From:   Xi Ruoyao <xry111@...111.site>
To:     Huacai Chen <chenhuacai@...nel.org>,
        Youling Tang <tangyouling@...ngson.cn>
Cc:     Qing Zhang <zhangqing@...ngson.cn>,
        WANG Xuerui <kernel@...0n.name>, loongarch@...ts.linux.dev,
        LKML <linux-kernel@...r.kernel.org>,
        Jiaxun Yang <jiaxun.yang@...goat.com>,
        Jinyang He <hejinyang@...ngson.cn>
Subject: Re: [PATCH 2/4] LoongArch: Add prologue unwinder support

On Tue, 2022-08-02 at 09:34 +0800, Huacai Chen wrote:
> > > #define UNWINDER_GUESS     0
> > > #define UNWINDER_PROLOGURE 1
> > 
> > Maybe it's better to define with enum type?
> > enum unwind_type {
> >          UNWINDER_GUESS,
> >          UNWINDER_PROLOGURE,
> > };
> Both macro and enum are acceptable, but enum is essentially "int",
> while the "type" member is "char" here.

"0" or "1" will also be "int" (C99 6.4.4.1 para 5).

-- 
Xi Ruoyao <xry111@...111.site>
School of Aerospace Science and Technology, Xidian University