arm64: Add detection code for broken .inst support in binutils

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Binutils version up to (and including) 2.25 have a pathological
behaviour when it comes to mixing .inst directive and arithmetic
involving labels. The assembler complains about non-constant
expressions and compilation stops pretty quickly.

In order to detect this and work around it, let's add a bit of
detection code that will set the CONFIG_BROKEN_GAS_INST option
should a broken gas be detected.

Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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Marc Zyngier 2016-12-06 15:27:43 +00:00 • committed by Catalin Marinas

parent 49f5522e49

commit bbb56c2722

1 changed files with 8 additions and 2 deletions

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arch/arm64/Makefile

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