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Message-ID: <20241211224927.968483-3-howardchu95@gmail.com> Date: Wed, 11 Dec 2024 14:49:27 -0800 From: Howard Chu <howardchu95@...il.com> To: acme@...nel.org Cc: namhyung@...nel.org, mark.rutland@....com, alexander.shishkin@...ux.intel.com, jolsa@...nel.org, irogers@...gle.com, adrian.hunter@...el.com, kan.liang@...ux.intel.com, linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org, Howard Chu <howardchu95@...il.com> Subject: [PATCH v3 2/2] perf docs: Add documentation for --force-btf option The --force-btf option is intended for debugging purposes and is currently undocumented. Add documentation for it. Signed-off-by: Howard Chu <howardchu95@...il.com> --- tools/perf/Documentation/perf-trace.txt | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/tools/perf/Documentation/perf-trace.txt b/tools/perf/Documentation/perf-trace.txt index 6e0cc50bbc13..fb3d2af33844 100644 --- a/tools/perf/Documentation/perf-trace.txt +++ b/tools/perf/Documentation/perf-trace.txt @@ -241,6 +241,11 @@ the thread executes on the designated CPUs. Default is to monitor all CPUs. printing using the existing 'perf trace' syscall arg beautifiers to map integer arguments to strings (pid to comm, syscall id to syscall name, etc). +--force-btf:: + Use btf_dump to pretty print syscall argument data, instead of using hand-crafted pretty + printers. This option is intended for testing BTF integration in perf trace. btf_dump-based + pretty-printing serves as a fallback to hand-crafted pretty printers, as the latter can + better pretty-print integer flags and struct pointers. PAGEFAULTS ---------- -- 2.43.0
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