linux-kernel - Re: [PATCH v2] perf trace: Split BPF skel code to util/bpf_trace

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Message-Id: <175095968570.2045399.17117196657041897009.b4-ty@kernel.org>
Date: Thu, 26 Jun 2025 10:41:25 -0700
From: Namhyung Kim <namhyung@...nel.org>
To: Arnaldo Carvalho de Melo <acme@...nel.org>, 
 Ian Rogers <irogers@...gle.com>, Kan Liang <kan.liang@...ux.intel.com>, 
 Namhyung Kim <namhyung@...nel.org>
Cc: Jiri Olsa <jolsa@...nel.org>, Adrian Hunter <adrian.hunter@...el.com>, 
 Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...nel.org>, 
 LKML <linux-kernel@...r.kernel.org>, linux-perf-users@...r.kernel.org, 
 Song Liu <song@...nel.org>, bpf@...r.kernel.org, 
 Howard Chu <howardchu95@...il.com>
Subject: Re: [PATCH v2] perf trace: Split BPF skel code to
 util/bpf_trace_augment.c

On Mon, 23 Jun 2025 15:57:21 -0700, Namhyung Kim wrote:
> And make builtin-trace.c less conditional.  Dummy functions will be
> called when BUILD_BPF_SKEL=0 is used.  This makes the builtin-trace.c
> slightly smaller and simpler by removing the skeleton and its helpers.
> 
> The conditional guard of trace__init_syscalls_bpf_prog_array_maps() is
> changed from the HAVE_BPF_SKEL to HAVE_LIBBPF_SUPPORT as it doesn't
> have a skeleton in the code directly.  And a dummy function is added so
> that it can be called unconditionally.  The function will succeed only
> if the both conditions are true.
> 
> [...]
Applied to perf-tools-next, thanks!

Best regards,
Namhyung