From 734150717a7bec55d0e4d5a23e5433ed67849e19 Mon Sep 17 00:00:00 2001
From: Jiebin Sun <jiebin.sun@intel.com>
Date: Mon, 17 Aug 2026 17:46:15 +0800
Subject: perf c2c: extract shared data structures into util/c2c.h

The function browser belongs in libperf-ui.a, but that archive is also
linked into python/perf.so, where builtin command objects are unavailable.
The browser therefore cannot depend on types or callbacks owned by
builtin-c2c.c.

Move c2c_hists, compute_stats, c2c_hist_entry, and the shared column
formatting definitions from builtin-c2c.c to a new util/c2c.h. Move
c2c_fmt_free() and c2c_fmt_equal() to a new util/c2c.c.

Keep struct perf_c2c, the command instance, and
perf_c2c__browse_cacheline() private to builtin-c2c.c.

No functional change.

Signed-off-by: Jiebin Sun <jiebin.sun@intel.com>
Reviewed-by: Tianyou Li <tianyou.li@intel.com>
Reviewed-by: Wangyang Guo <wangyang.guo@intel.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Cc: Dapeng Mi <dapeng1.mi@linux.intel.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Thomas Falcon <thomas.falcon@intel.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/c2c.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 tools/perf/util/c2c.c

(limited to 'tools/perf/util/c2c.c')

diff --git a/tools/perf/util/c2c.c b/tools/perf/util/c2c.c
new file mode 100644
index 000000000000..58c7342dff46
--- /dev/null
+++ b/tools/perf/util/c2c.c
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <stdlib.h>
+#include <linux/kernel.h>
+#include "hist.h"
+#include "c2c.h"
+
+void c2c_fmt_free(struct perf_hpp_fmt *fmt)
+{
+	struct c2c_fmt *c2c_fmt;
+
+	c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
+	free(c2c_fmt);
+}
+
+bool c2c_fmt_equal(struct perf_hpp_fmt *a, struct perf_hpp_fmt *b)
+{
+	struct c2c_fmt *c2c_a = container_of(a, struct c2c_fmt, fmt);
+	struct c2c_fmt *c2c_b = container_of(b, struct c2c_fmt, fmt);
+
+	return c2c_a->dim == c2c_b->dim;
+}
-- 
cgit v1.2.3