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perf expr: Add #target_cpu literal

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For CPU nanoseconds a lot of the stat-shadow metrics use either
task-clock or cpu-clock, the latter being used when
target__has_cpu. Add a #target_cpu literal so that json metrics can
perform the same test.

Signed-off-by: Ian Rogers <irogers@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
This commit is contained in:
Ian Rogers 2025-11-11 13:21:50 -08:00 committed by Namhyung Kim
parent c8035a4961
commit 2e5140849b
1 changed files with 3 additions and 0 deletions
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3
tools/perf/util/expr.c
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@ -409,6 +409,9 @@ double expr__get_literal(const char *literal, const struct expr_scanner_ctx *ctx
} else if (!strcmp("#core_wide", literal)) {
result = core_wide(ctx->system_wide, ctx->user_requested_cpu_list)
? 1.0 : 0.0;
} else if (!strcmp("#target_cpu", literal)) {
result = (ctx->system_wide || ctx->user_requested_cpu_list)
? 1.0 : 0.0;
} else {
pr_err("Unrecognized literal '%s'", literal);
}