[Buildroot] [PATCHv2] linux: may fail to boot for binutils 2.29+ even without armv7m
Yann E. MORIN
yann.morin.1998 at free.fr
Fri Jun 1 18:01:57 UTC 2018
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)
linux/Config.in | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/linux/Config.in b/linux/Config.in
index bffb52fd18..c29b1f6c88 100644
@@ -9,7 +9,7 @@ config BR2_LINUX_KERNEL
comment "Linux kernel may fail to boot with binutils >= 2.29"
- depends on BR2_ARM_CPU_ARMV7M
+ depends on BR2_arm || BR2_armeb
depends on !BR2_BINUTILS_VERSION_2_28_X
# Packages that need to have a kernel with support for loadable modules,
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