linux-kernel - Re: [PATCH v9 02/10] Makefile: Prepare for using macros for inline asm

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Date:   Tue, 6 Nov 2018 11:57:57 -0700
From:   Logan Gunthorpe <logang@...tatee.com>
To:     Nadav Amit <namit@...are.com>, Ingo Molnar <mingo@...hat.com>
Cc:     linux-kernel@...r.kernel.org, x86@...nel.org,
        Sam Ravnborg <sam@...nborg.org>,
        Michal Marek <michal.lkml@...kovi.net>,
        Thomas Gleixner <tglx@...utronix.de>,
        "H. Peter Anvin" <hpa@...or.com>, linux-kbuild@...r.kernel.org,
        Stephen Bates <sbates@...thlin.com>
Subject: Re: [PATCH v9 02/10] Makefile: Prepare for using macros for inline
 asm

On 2018-10-03 3:30 p.m., Nadav Amit wrote:
> +ASM_MACRO_FLAGS = -Wa,arch/x86/kernel/macros.s -Wa,-
> +export ASM_MACRO_FLAGS
> +KBUILD_CFLAGS += $(ASM_MACRO_FLAGS)

I'm not sure how much we care about this or what we can do about it, but
adding the macros.s to the command line like this has effectively broken
distributed compiling with distcc and icecc as of v4.20-rc1. Neither
tool will successfully distribute any compile processes because the
non-local machines won't have a copy of macros.s.

Thanks,

Logan