linux-kernel - Re: [PATCH v1 1/1] remoteproc: qcom: pas: Coredump elf class to elf64

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Message-ID: <0328b17b-2956-9cf6-f90c-63210b01e61f@linaro.org>
Date:   Fri, 10 Mar 2023 14:16:42 +0200
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Sibi Sankar <quic_sibis@...cinc.com>,
        Gokul krishna Krishnakumar <quic_gokukris@...cinc.com>,
        linux-remoteproc@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Trilok Soni <quic_tsoni@...cinc.com>,
        Satya Durga Srinivasu Prabhala <quic_satyap@...cinc.com>,
        Rajendra Nayak <quic_rjendra@...cinc.com>,
        Elliot Berman <quic_eberman@...cinc.com>,
        Guru Das Srinagesh <quic_gurus@...cinc.com>,
        Melody Olvera <quic_molvera@...cinc.com>
Subject: Re: [PATCH v1 1/1] remoteproc: qcom: pas: Coredump elf class to elf64

On 10/03/2023 06:04, Sibi Sankar wrote:
> Hey Gokul,
> 
> Thanks for the patch.
> 
> On 3/9/23 05:40, Gokul krishna Krishnakumar wrote:
>> This change adds a new initialization param which modifies the elf
>> class accordingly. Some of the subsystem dump analysis tools need
>> the elf class to be elf64.
>>
> 
> https://lore.kernel.org/lkml/8dea333d-544d-7c07-d560-a1a9c3a38ddc@quicinc.com/
> 
> This patch was already sent upstream a while back ^^. IIRC the firmware
> certainly aren't 64 bit elfs and dump analysis tools don't really care 
> as long the coredump contains section headers.

I think that if we want to change the coredump ELF class, we should 
match the class of the loaded firmware file. Same applies to the ELF 
machine (EM_NONE).

-- 
With best wishes
Dmitry