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| author | Song Liu <song@kernel.org> | 2026-09-16 11:43:27 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2026-09-21 11:12:06 +0200 |
| commit | dff07c58cae7f60e7ae08e9c005e8ec125391f98 (patch) | |
| tree | d5f67ba382f0023e70a04dcbf6257e326629b955 /tools/perf/scripts/python | |
| parent | 6549ce0dd1be2400ecdd8693e47c189c54562a4e (diff) | |
objtool/klp: Add test for empty x86 alternative replacements
ALTERNATIVE_2("orig", "repl", ft1, "", ft2) produces a second entry whose
replacement is empty. Its replacement offset still carries a relocation,
but the label it points at is the end of the previous replacement -- which
is also where the next one begins. The value is meaningless and only ever
used with a length of zero, so cloning must not follow it.
The first version of this fixture passed with the fix reverted, because the
empty entry pointed at its own end label rather than at the neighbour's
replacement. It has to reach into another function's replacement to
distinguish the behaviour.
This tests the behavior of commit 636f230ce21e ("objtool/klp: Ignore
replacement offset of empty x86 alternatives").
Assisted-by: Claude:claude-opus-4
Based-on-test-by: Joe Lawrence <joe.lawrence@redhat.com>
Assisted-by: Claude:claude-opus-5
Signed-off-by: Song Liu <song@kernel.org>
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://patch.msgid.link/20260916184351.2720310-35-song@kernel.org
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions