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Date:   Tue, 05 May 2020 23:51:27 +1000
From:   Michael Ellerman <mpe@...erman.id.au>
To:     Will Deacon <will@...nel.org>,
        Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Amit Daniel Kachhap <amit.kachhap@....com>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Vincenzo Frascino <Vincenzo.Frascino@....com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 1/2] init/kconfig: Add LD_VERSION Kconfig

Will Deacon <will@...nel.org> writes:
> On Mon, May 04, 2020 at 09:11:12AM +0200, Geert Uytterhoeven wrote:
>> On Mon, Mar 30, 2020 at 1:42 PM Amit Daniel Kachhap
>> <amit.kachhap@....com> wrote:
>> > This option can be used in Kconfig files to compare the ld version
>> > and enable/disable incompatible config options if required.
>> >
>> > This option is used in the subsequent patch along with GCC_VERSION to
>> > filter out an incompatible feature.
>> >
>> > Signed-off-by: Amit Daniel Kachhap <amit.kachhap@....com>
>> 
>> > --- a/init/Kconfig
>> > +++ b/init/Kconfig
>> > @@ -17,6 +17,10 @@ config GCC_VERSION
>> >         default $(shell,$(srctree)/scripts/gcc-version.sh $(CC)) if CC_IS_GCC
>> >         default 0
>> >
>> > +config LD_VERSION
>> > +       int
>> > +       default $(shell,$(LD) --version | $(srctree)/scripts/ld-version.sh)
>> > +
>> >  config CC_IS_CLANG
>> >         def_bool $(success,$(CC) --version | head -n 1 | grep -q clang)
>> 
>> .config: warning: symbol value '2.01827e+11' invalid for LD_VERSION
>> 
>> Seen with the or32 compiler on kisskb, e.g.
>> http://kisskb.ellerman.id.au/kisskb/buildresult/14226173/
>
> Hmm. The binutils version there is '2.26.20160125', but I think
> scripts/ld-version.sh is expecting that to be '2.26.0.20160125' as it would
> then ignore the date suffix as of commit 0d61ed17dd30 ("ld-version: Drop
> the 4th and 5th version components").

I updated the or32 compiler on kisskb to gcc 9.3.0, thanks to Arnd for
building it.

It has binutils 2.34.

cheers

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