From 631142116cd29d3ff06cbebdbadb4f4e1ed13561 Mon Sep 17 00:00:00 2001
From: Stephan Hageboeck <stephan.hageboeck@cern.ch>
Date: Fri, 17 Apr 2026 11:07:22 +0200
Subject: [PATCH] [roottest] Add a test for CLING_PROFILE

The feature seems to have stopped working after the last llvm upgrade.
---
 roottest/cling/other/CMakeLists.txt |  4 ++++
 roottest/cling/other/testPerfMap.sh | 14 ++++++++++++++
 2 files changed, 18 insertions(+)
 create mode 100644 roottest/cling/other/testPerfMap.sh

diff --git a/roottest/cling/other/CMakeLists.txt b/roottest/cling/other/CMakeLists.txt
index 6ee494a75e080..7bac74f151ebb 100644
--- a/roottest/cling/other/CMakeLists.txt
+++ b/roottest/cling/other/CMakeLists.txt
@@ -61,3 +61,7 @@ ROOTTEST_ADD_TEST(checkMissingSymbolExitCode
 ROOTTEST_ADD_TEST(assertDirWithParen
                   MACRO assertDirWithParen.C
                   LABELS roottest regression cling)
+
+if(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
+    add_test(NAME testPerfMap COMMAND bash ${CMAKE_CURRENT_SOURCE_DIR}/testPerfMap.sh)
+endif()
\ No newline at end of file
diff --git a/roottest/cling/other/testPerfMap.sh b/roottest/cling/other/testPerfMap.sh
new file mode 100644
index 0000000000000..308d8d5ef19f7
--- /dev/null
+++ b/roottest/cling/other/testPerfMap.sh
@@ -0,0 +1,14 @@
+#!/bin/bash
+
+OUTPUT=$(mktemp /tmp/testPerfMap_XXXXX)
+CLING_PROFILE=1 root.exe -b -q -e "int testFunc42() { return 42; }" -e "testFunc42()" > ${OUTPUT} &
+PERF_MAP=/tmp/perf-${!}.map
+
+wait
+
+grep -q 42 ${OUTPUT} || { echo "Root process did not return the expected result in ${OUTPUT}" >&2; exit 1; }
+test -f ${PERF_MAP} || { echo "No perf map found in ${PERF_MAP}" >&2; exit 1; }
+
+if [ -f ${PERF_MAP} ]; then
+  c++filt < ${PERF_MAP} | grep 'testFunc42\(\)' || { echo "The test function was not exported to the perf map." >&2; exit 2; }
+fi