linux-kernel - [RFC PATCH 26/77] tests: metadata: Add export symbols with local references tests

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Message-ID: <20260112142009.1006236-27-herve.codina@bootlin.com>
Date: Mon, 12 Jan 2026 15:19:16 +0100
From: Herve Codina <herve.codina@...tlin.com>
To: David Gibson <david@...son.dropbear.id.au>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>
Cc: Ayush Singh <ayush@...gleboard.org>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	devicetree-compiler@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	devicetree-spec@...r.kernel.org,
	Hui Pu <hui.pu@...ealthcare.com>,
	Ian Ray <ian.ray@...ealthcare.com>,
	Luca Ceresoli <luca.ceresoli@...tlin.com>,
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
	Herve Codina <herve.codina@...tlin.com>
Subject: [RFC PATCH 26/77] tests: metadata: Add export symbols with local references tests

Add tests related to export symbols using local phandle references
(FDT_EXPORT_SYM dtb tag).

Signed-off-by: Herve Codina <herve.codina@...tlin.com>
---
 .../metadata_exportsyms_local.dtb.dts.expect  | 26 +++++++++++++++++
 tests/metadata_exportsyms_local.dtb.expect    | 20 +++++++++++++
 tests/metadata_exportsyms_local.dts           | 28 +++++++++++++++++++
 .../metadata_exportsyms_local.dts.dts.expect  | 26 +++++++++++++++++
 tests/run_tests.sh                            |  2 +-
 5 files changed, 101 insertions(+), 1 deletion(-)
 create mode 100644 tests/metadata_exportsyms_local.dtb.dts.expect
 create mode 100644 tests/metadata_exportsyms_local.dtb.expect
 create mode 100644 tests/metadata_exportsyms_local.dts
 create mode 100644 tests/metadata_exportsyms_local.dts.dts.expect

diff --git a/tests/metadata_exportsyms_local.dtb.dts.expect b/tests/metadata_exportsyms_local.dtb.dts.expect
new file mode 100644
index 0000000..ac3d5b3
--- /dev/null
+++ b/tests/metadata_exportsyms_local.dtb.dts.expect
@@ -0,0 +1,26 @@
+/dts-v1/;
+
+/ {
+
+	node-a {
+	};
+
+	node-b {
+		phandle = <0x03>;
+	};
+
+	node-c {
+
+		sub-node {
+			phandle = <0x02>;
+		};
+	};
+
+	node-d {
+		phandle = <0x01>;
+
+		/export/ node_d: &{/node-d};
+		/export/ subnode_c: &{/node-c/sub-node};
+		/export/ node_b: &{/node-b};
+	};
+};
diff --git a/tests/metadata_exportsyms_local.dtb.expect b/tests/metadata_exportsyms_local.dtb.expect
new file mode 100644
index 0000000..2002553
--- /dev/null
+++ b/tests/metadata_exportsyms_local.dtb.expect
@@ -0,0 +1,20 @@
+/dts-v1/;
+
+/ {
+    node-a {
+    };
+    node-b {
+        phandle = <0x00000003>;
+    };
+    node-c {
+        sub-node {
+            phandle = <0x00000002>;
+        };
+    };
+    node-d {
+        phandle = <0x00000001>;
+        // [FDT_EXPORT_SYM] 'node_d' -> phandle 0x00000001
+        // [FDT_EXPORT_SYM] 'subnode_c' -> phandle 0x00000002
+        // [FDT_EXPORT_SYM] 'node_b' -> phandle 0x00000003
+    };
+};
diff --git a/tests/metadata_exportsyms_local.dts b/tests/metadata_exportsyms_local.dts
new file mode 100644
index 0000000..10e6e47
--- /dev/null
+++ b/tests/metadata_exportsyms_local.dts
@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
+/*
+ * Copyright (C) 2026 Bootlin
+ */
+
+/dts-v1/;
+
+/ {
+	node-a {
+	};
+
+	node_b: node-b {
+	};
+
+	node-c {
+		sub_node: sub-node {
+		};
+	};
+
+	node_d: node-d {
+		/export/ node_d: &node_d;
+		/export/ subnode_c: &sub_node;
+	};
+};
+
+&node_d {
+	/export/ node_b: &node_b;
+};
diff --git a/tests/metadata_exportsyms_local.dts.dts.expect b/tests/metadata_exportsyms_local.dts.dts.expect
new file mode 100644
index 0000000..4723e7e
--- /dev/null
+++ b/tests/metadata_exportsyms_local.dts.dts.expect
@@ -0,0 +1,26 @@
+/dts-v1/;
+
+/ {
+
+	node-a {
+	};
+
+	node_b: node-b {
+		phandle = <0x03>;
+	};
+
+	node-c {
+
+		sub_node: sub-node {
+			phandle = <0x02>;
+		};
+	};
+
+	node_d: node-d {
+		phandle = <0x01>;
+
+		/export/ node_d: &node_d;
+		/export/ subnode_c: &sub_node;
+		/export/ node_b: &node_b;
+	};
+};
diff --git a/tests/run_tests.sh b/tests/run_tests.sh
index def1a7e..ed3a240 100755
--- a/tests/run_tests.sh
+++ b/tests/run_tests.sh
@@ -1126,7 +1126,7 @@ wrap_fdtdump () {
 
 metadata_tests() {
 	for dt in metadata_reflocal metadata_refphandle \
-		  metadata_addon_base; do
+		  metadata_addon_base metadata_exportsyms_local; do
 		run_dtc_test -I dts -O dts -o $dt.dts.dts "$SRCDIR/$dt.dts"
 		base_run_test check_diff $dt.dts.dts "$SRCDIR/$dt.dts.dts.expect"
 		run_dtc_test -I dts -O dtb -o $dt.dtb "$SRCDIR/$dt.dts"
-- 
2.52.0