perf tools power9 JSON files build breakage on ubuntu 18.04 cross build

[Ian Rogers]

On Thu, Mar 23, 2023 at 6:11 AM Arnaldo Carvalho de Melo
<acme at kernel.org> wrote:
>
> Exception processing pmu-events/arch/powerpc/power9/other.json
> Traceback (most recent call last):
>   File "pmu-events/jevents.py", line 997, in <module>
>     main()
>   File "pmu-events/jevents.py", line 979, in main
>     ftw(arch_path, [], preprocess_one_file)
>   File "pmu-events/jevents.py", line 935, in ftw
>     ftw(item.path, parents + [item.name], action)
>   File "pmu-events/jevents.py", line 933, in ftw
>     action(parents, item)
>   File "pmu-events/jevents.py", line 514, in preprocess_one_file
>     for event in read_json_events(item.path, topic):
>   File "pmu-events/jevents.py", line 388, in read_json_events
>     events = json.load(open(path), object_hook=JsonEvent)
>   File "/usr/lib/python3.6/json/__init__.py", line 296, in load
>     return loads(fp.read(),
>   File "/usr/lib/python3.6/encodings/ascii.py", line 26, in decode
>     return codecs.ascii_decode(input, self.errors)[0]
> UnicodeDecodeError: 'ascii' codec can't decode byte 0xc2 in position 55090: ordinal not in range(128)
>   CC      /tmp/build/perf/tests/expr.o
> pmu-events/Build:35: recipe for target '/tmp/build/perf/pmu-events/pmu-events.c' failed
> make[3]: *** [/tmp/build/perf/pmu-events/pmu-events.c] Error 1
> make[3]: *** Deleting file '/tmp/build/perf/pmu-events/pmu-events.c'
> Makefile.perf:679: recipe for target '/tmp/build/perf/pmu-events/pmu-events-in.o' failed
> make[2]: *** [/tmp/build/perf/pmu-events/pmu-events-in.o] Error 2
> make[2]: *** Waiting for unfinished jobs....
>
>
> Now jevents is an opt-out feature so I'm noticing these problems.
>
> A similar fix for s390 was accepted today:

The JEVENTS_ARCH=all make option builds the s390 files even on x86.
I'm confused as to why that's been working before these fixes.

Thanks,
Ian

> https://lore.kernel.org/r/20230323122532.2305847-1-tmricht@linux.ibm.com
> https://lore.kernel.org/r/ZBwkl77/I31AQk12@osiris
> --
>
> - Arnaldo