[Buildroot] [PATCH] toolchain/toolchain-external/toolchain-external-arm-arm: add dependency on NEON

[Peter Korsgaard]

>>>>> "Thomas" == Thomas Petazzoni <thomas.petazzoni at bootlin.com> writes:

 > While testing Buildroot on a Cortex-A5 that doesn't provide NEON, we
 > found out that a system generated with the ARM toolchain from Arm
 > didn't boot. It turns out that this ARM toolchain is built with:

 >   --with-arch=armv7-a --with-fpu=neon --with-float=hard --with-mode=thumb

 > So, it uses NEON as its FPU, which means it can only work on CPU cores
 > that have NEON support. This commit adds the appropriate dependency to
 > the toolchain-external-arm-arm package, and adjusts the Config.in help
 > text accordingly.

 > While at it, it also drops the part of the Config.in help text that
 > says the code is tuned for Cortex-A9, as it is not the case: it was
 > the case for the Linaro toolchain (built with --with-tune=cortex-a9),
 > but not for the ARM toolchain, for which no specific --with-tune is
 > passed.

 > Signed-off-by: Thomas Petazzoni <thomas.petazzoni at bootlin.com>
 > Cc: Alexandre Belloni <alexandre.belloni at bootlin.com>
 > Cc: Romain Naour <romain.naour at gmail.com>

Committed to 2020.02.x and 2020.08.x, thanks.

-- 
Bye, Peter Korsgaard