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objtool: Explicitly avoid self modifying code in .altinstr_replacement
authorPeter Zijlstra <peterz@infradead.org>
Tue, 26 Oct 2021 12:01:34 +0000 (14:01 +0200)
committerPeter Zijlstra <peterz@infradead.org>
Thu, 28 Oct 2021 21:25:25 +0000 (23:25 +0200)
commitdd003edeffa3cb87bc9862582004f405d77d7670
tree9454b4bcf4fd88610280877db064b766925af3e6tree | snapshot
parent1739c66eb7bd5f27f1b69a5a26e10e8327d1e136commit | diff
objtool: Explicitly avoid self modifying code in .altinstr_replacement

Assume ALTERNATIVE()s know what they're doing and do not change, or
cause to change, instructions in .altinstr_replacement sections.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Borislav Petkov <bp@suse.de>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Tested-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/r/20211026120309.722511775@infradead.org
tools/objtool/check.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git