[Buildroot] [PATCHv2] linux: may fail to boot for binutils 2.29+ even without armv7m
peter at korsgaard.com
Sun Jun 17 15:04:15 UTC 2018
>>>>> "Yann" == Yann E MORIN <yann.morin.1998 at free.fr> writes:
> Commit f13477b (linux: config.in: add comment for Arm Cortex-M) added a
> comment so that the user that the linux kernel may miscompile with
> binutils 2.29+, when the target is an armv7m CPU.
> However, the real trigger is a compilation in thumb2 mode, which happens
> to be the only option for armv7m CPUs.
> We can't know whether the kernel will be built in arm or thumb2 mode,
> though, because we do not have that information: it is only available in
> the Linux' .config file, which we don;t have access to at the time we
> run our menuconfig.
> So, relax the conditions under which the comment is made, so that it
> appears as soon as binutils are >= 2.29 (i.e. not 2.28, which is the
> oldest we support) for ARM CPUs.
> Signed-off-by: "Yann E. MORIN" <yann.morin.1998 at free.fr>
> Cc: Christophe Priouzeau <christophe.priouzeau at st.com>
> Cc: Laurent GONZALEZ <br22 at gezedo.com>
> Cc: Peter Korsgaard <peter at korsgaard.com>
> Cc: Thomas Petazzoni <thomas.petazzoni at bootlin.com>
> Cc: Arnout Vandecappelle <arnout at mind.be>
> Changes v1 -> v2:
> - only applicable to ARM CPUs. (Peter)
Committed to 2018.02.x, thanks.
Bye, Peter Korsgaard
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