diff options
| author | Josh Poimboeuf <[email protected]> | 2021-02-24 10:29:14 -0600 |
|---|---|---|
| committer | Josh Poimboeuf <[email protected]> | 2021-04-19 12:36:32 -0500 |
| commit | 99033461e685b48549ec77608b4bda75ddf772ce (patch) | |
| tree | 07f19d4cb298b9b7fb1593cecf6287d83d696e7d /tools/perf/util/trace-event-scripting.c | |
| parent | 900b4df347bbac4874149a226143a556909faba8 (diff) | |
objtool: Support asm jump tables
Objtool detection of asm jump tables would normally just work, except
for the fact that asm retpolines use alternatives. Objtool thinks the
alternative code path (a jump to the retpoline) is a sibling call.
Don't treat alternative indirect branches as sibling calls when the
original instruction has a jump table.
Signed-off-by: Josh Poimboeuf <[email protected]>
Tested-by: Ard Biesheuvel <[email protected]>
Acked-by: Ard Biesheuvel <[email protected]>
Tested-by: Sami Tolvanen <[email protected]>
Acked-by: Peter Zijlstra (Intel) <[email protected]>
Acked-by: Herbert Xu <[email protected]>
Link: https://lore.kernel.org/r/460cf4dc675d64e1124146562cabd2c05aa322e8.1614182415.git.jpoimboe@redhat.com
Diffstat (limited to 'tools/perf/util/trace-event-scripting.c')
0 files changed, 0 insertions, 0 deletions