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H A Dbuiltin-check.cdiff 900b4df347bbac4874149a226143a556909faba8 Fri Feb 26 04:32:30 CST 2021 Peter Zijlstra <peterz@infradead.org> objtool: Parse options from OBJTOOL_ARGS

Teach objtool to parse options from the OBJTOOL_ARGS environment
variable.

This enables things like:

$ OBJTOOL_ARGS="--backup" make O=defconfig-build/ kernel/ponies.o

to obtain both defconfig-build/kernel/ponies.o{,.orig} and easily
inspect what objtool actually did.

Suggested-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Link: https://lkml.kernel.org/r/20210226110004.252553847@infradead.org