perf tool jit profiling broken 20.04

[Younes Manton]

The following kernel commit:

[babd04386b1df8c364cdaa39ac0e54349502e1e5] perf jit: Include program header in ELF files

introduced a bug in perf that causes samples to be attributed to the wrong instructions in
the annotated assembly output of `perf report` and `perf annotate`.

The following commit:

[89b15d00527b7825ff19130ed83478e80e3fae99] perf inject: Fix GEN_ELF_TEXT_OFFSET for jit

fixes the bug. Can it be backported to 20.04 and wherever else it's needed? The output looks very
confusing when parts of the code one expects to accumulate ticks don't and other parts
that shouldn't be executed at all accumulate ticks.

The above patch depends on parts of d6e6a27d960f9f07aef0b979c49c6736ede28f75, which depends on something else, etc. etc.

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 2020197

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Younes Manton (younes-m)]

Log files not relevant.

[Timo Aaltonen (tjaalton)]

fixed in 6.1-rc1 and up, and not found in upstream stable@ so please send it there?

[Timo Aaltonen (tjaalton)]

the breaking commit was added upstream to 5.4.215, 5.15.71