linux-kernel - Re: Build error: ‘EM

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Date:   Fri, 24 Sep 2021 10:30:30 +0100
From:   Jon Hunter <jonathanh@...dia.com>
To:     Miles Chen <miles.chen@...iatek.com>,
        Stefan Wahren <stefan.wahren@...e.com>,
        Jisheng Zhang <jszhang@...nel.org>,
        open list <linux-kernel@...r.kernel.org>,
        Palmer Dabbelt <palmerdabbelt@...gle.com>
CC:     "linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>
Subject: Re: Build error: ‘EM_RISCV’ undeclared


On 13/09/2021 03:49, Miles Chen wrote:
> On Sun, 2021-09-12 at 12:29 +0200, Stefan Wahren wrote:
>> Hi,
>>
>> i tried to compile current torvalds tree
>> ("78e709522d2c012cb0daad2e668506637bffb7c2") for
>> arm/multi_v7_defconfig
>> and get the following build issue:
>>
>>    UPD     include/generated/utsrelease.h
>> scripts/sorttable.c: In function ‘do_file’:
>> scripts/sorttable.c:352:7: error: ‘EM_RISCV’ undeclared (first use in
>> this function)
>>    case EM_RISCV:
>>         ^
>> scripts/sorttable.c:352:7: note: each undeclared identifier is
>> reported
>> only once for each function it appears in
>>
>> I assume this is caused by:
>>
>> 54fed35fd3939398be292e4090b0b1c5ff2238b4 ("riscv: Enable
>> BUILDTIME_TABLE_SORT")
> 
> I hit this error too. I add the follow conditional EM_RISCV
> definition in sorttable.c to build pass (arm64/defconfig).
> 
> I will submit a patch out.
> 
> diff --git a/scripts/sorttable.c b/scripts/sorttable.c
> index f355869c65cd..6ee4fa882919 100644
> --- a/scripts/sorttable.c
> +++ b/scripts/sorttable.c
> @@ -54,6 +54,10 @@
>   #define EM_ARCV2       195
>   #endif
> 
> +#ifndef EM_RISCV
> +#define EM_RISCV       243
> +#endif
> +


This is still broken in the mainline. Any plans to get this fix merged 
there? I believe it has now been broken for nearly 2 weeks.

Thanks!
Jon

-- 
nvpublic