Re: [PATCH 4/4] perf symbol: Add missing libgen.h include to get basename() prototype

[Arnaldo Melo <arnaldo.melo@gmail.com>]

On April 1, 2026 6:08:16 PM GMT-03:00, Ian Rogers <irogers@google.com> wrote:
>On Wed, Apr 1, 2026 at 2:02 PM Arnaldo Carvalho de Melo <acme@kernel.org> wrote:
>>
>> From: Arnaldo Carvalho de Melo <acme@redhat.com>
>>
>> This works in some places because there are tricks to prefer a GNU
>> version instead of the XPG version, but started breaking in some musl
>> libc systems due to some unrelated change that made libgen.h stop being
>> included by chance.
>>
>> Since symbol.h is using basename(), make it include libgen.h.
>>
>> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
>> ---
>>  tools/perf/tests/make    | 2 +-
>>  tools/perf/util/symbol.h | 1 +
>>  2 files changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/tools/perf/tests/make b/tools/perf/tests/make
>> index 6587dc326d1b272e..e12ff6397077806e 100644
>> --- a/tools/perf/tests/make
>> +++ b/tools/perf/tests/make
>> @@ -148,7 +148,7 @@ run += make_extra_tests
>>  run += make_no_jevents
>>  run += make_jevents_all
>>  run += make_no_bpf_skel
>> -run += make_gen_vmlinux_h
>> +#run += make_gen_vmlinux_h
>
>This looks like something removed during testing that you meant to put back.


Yeah, unrelated, I'll send a v2 removing the header dir move that was already merged, as you noted.

This gen vmlinux test is failing and I still need to figure out, seems like a newer clang is complaining about some struct forward declarations I'm vmlinux.h.

- Arnaldo 

>Thanks,
>Ian
>
>>  run += make_libperl
>>  run += make_no_libpython
>>  run += make_no_scripts
>> diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
>> index c67814d6d6d6f64a..b37ecc2e90f77efe 100644
>> --- a/tools/perf/util/symbol.h
>> +++ b/tools/perf/util/symbol.h
>> @@ -10,6 +10,7 @@
>>  #include <linux/rbtree.h>
>>  #include <stdio.h>
>>  #include <errno.h>
>> +#include <libgen.h>
>>  #include "addr_location.h"
>>  #include "path.h"
>>  #include "symbol_conf.h"
>> --
>> 2.53.0
>>
>

- Arnaldo