linux-kernel - Re: [PATCH V6] GCOV: Add config to check the preqequisites situation

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Date:   Thu, 23 Jul 2020 11:47:51 +0200
From:   Peter Oberparleiter <oberpar@...ux.ibm.com>
To:     Cixi Geng <gengcixi@...il.com>,
        Greg KH <gregkh@...uxfoundation.org>, jslaby@...e.com,
        linux-serial@...r.kernel.org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Cc:     Cixi Geng1 <cixi.geng1@...soc.com>,
        Orson Zhai <orsonzhai@...il.com>, zhang.lyra@...il.com
Subject: Re: [PATCH V6] GCOV: Add config to check the preqequisites situation

On 16.07.2020 14:38, Cixi Geng wrote:
> Hi All:
> Does this patch need more modification?

Yes. As it is now there's still a prompt for the prereq symbol. There
should be no prompt for this symbol in the config dialog.

[...]


>> diff --git a/kernel/gcov/Kconfig b/kernel/gcov/Kconfig
>> index 3941a9c48f83..f415c4aaf0ab 100644
>> --- a/kernel/gcov/Kconfig
>> +++ b/kernel/gcov/Kconfig
>> @@ -51,6 +51,16 @@ config GCOV_PROFILE_ALL
>>         larger and run slower. Also be sure to exclude files from profiling
>>         which are not linked to the kernel image to prevent linker errors.
>>
>> +config GCOV_PROFILE_PREREQS
>> +       bool "Profile Kernel for prereqs"
>> +       default y if GCOV_KERNEL && !COMPILE_TEST
>> +       help
>> +         This options activates profiling for the specified kernel modules.
>> +
>> +         When some modules need Gcov data, enable this config, then configure
>> +         with gcov on the corresponding modules,The directories or files of
>> +         these modules will be added profiling flags after kernel compile.
>> +

Replace the portion above with these lines:

config GCOV_PROFILE_PREREQS
        def_bool y if GCOV_KERNEL && !COMPILE_TEST



-- 
Peter Oberparleiter
Linux on Z Development - IBM Germany