On Wed, Mar 03, 2021 at 08:45:31AM -0000, tip-bot2 for Peter Zijlstra wrote: > The following commit has been merged into the objtool/core branch of tip: > > Commit-ID: b52eb21aeca75790869c26b91b1d7b80b3946430 > Gitweb: https://git.kernel.org/tip/b52eb21aeca75790869c26b91b1d7b80b3946430 > Author: Peter Zijlstra <peterz@xxxxxxxxxxxxx> > AuthorDate: Fri, 26 Feb 2021 11:32:30 +01:00 > Committer: Peter Zijlstra <peterz@xxxxxxxxxxxxx> > CommitterDate: Wed, 03 Mar 2021 09:38:32 +01:00 > > 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. Latest objdiff.sh to go with this: $ cat objdiff.sh #!/bin/bash name=$1 pre=${name}.orig post=${name} function to_text { obj=$1 ( objdump -wdr $obj; readelf -W --relocs --symbols $obj | awk '/^Relocation section/ { $6=0 } { print $0 }' ) > ${obj}.tmp } to_text $pre to_text $post diff -u ${pre}.tmp ${post}.tmp rm ${pre}.tmp ${post}.tmp
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