perf tool: Add a delegate_tool that just delegates actions to another tool

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Add an ability to be able to compose perf_tools, by having one perform
an action and then calling a delegate. Currently the perf_tools have
if-then-elses setting the callback and then if-then-elses within the
callback. Understanding the behavior is complex as it is in two places
and logic for numerous operations, within things like perf inject, is
interwoven. By chaining perf_tools together based on command line
options this kind of code can be avoided.

Signed-off-by: Ian Rogers <irogers@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>

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Ian Rogers 2025-11-07 09:07:12 -08:00 • committed by Namhyung Kim

parent 71062e282d

commit 6331b26693

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171

tools/perf/util/tool.c

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9

tools/perf/util/tool.h

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