perf trace: Correct default cpumask formatting to hexadecimal

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Currently, dynamic non-array fields such as 'cpumask_t' are mishandled in
'perf trace', causing the raw length and offset descriptors to be interpreted
and displayed as a literal integer (e.g., "cpumask: 524320" instead of the
actual mask data).

Correct the parsing of dynamic fields that do not have the
TEP_FIELD_IS_ARRAY flag set by introducing helper functions
format_field__get_raw_data() and format_field__get_cpumask().
Using these helpers, resolve the pointer to the raw bits within the
payload and format the cpumask as a zero-padded hexadecimal string by default.

Fixes: c5e006cdbd ("perf trace: Support tracepoint dynamic char arrays")
Signed-off-by: Aaron Tomlin <atomlin@atomlin.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>

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Aaron Tomlin 2026-07-22 11:50:48 -04:00 • committed by Namhyung Kim

parent eaab2eb09d

commit 89493fe58c

3 changed files with 159 additions and 9 deletions

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69

tools/perf/builtin-trace.c

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91

tools/perf/util/evsel.c

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6

tools/perf/util/evsel.h

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