ci: support valgrind memcheck runs

.gitlab/artifacts.yml

@@ -146,6 +146,19 @@
             junit:
                 - ${CMAKE_CI_BUILD_DIR}/junit.xml
 
+.cmake_valgrind_artifacts:
+    artifacts:
+        expire_in: 1d
+        when: always
+        reports:
+            annotations:
+                - ${CMAKE_CI_BUILD_DIR}/annotations.json
+            junit:
+                - ${CMAKE_CI_BUILD_DIR}/junit.xml
+        paths:
+            # Valgrind logs.
+            - ${CMAKE_CI_BUILD_DIR}/Testing/Temporary/MemoryChecker.*.log
+
 .cmake_sphinx_artifacts:
     artifacts:
         expire_in: 1d

.gitlab/ci/ctest_memcheck_prep.cmake

@@ -5,3 +5,46 @@ set(lsan_suppressions "${CMAKE_CURRENT_LIST_DIR}/ctest_memcheck_$ENV{CMAKE_CONFI
 if (EXISTS "${lsan_suppressions}")
   set(ENV{LSAN_OPTIONS} "suppressions='${lsan_suppressions}'")
 endif ()
+
+if (CTEST_MEMORYCHECK_TYPE STREQUAL "Valgrind")
+  find_program(valgrind_exe NAMES valgrind)
+  set(CTEST_MEMORYCHECK_COMMAND "${valgrind_exe}")
+
+  set(valgrind_suppressions "${CMAKE_CURRENT_LIST_DIR}/ctest_memcheck_$ENV{CMAKE_CONFIGURATION}.valgrind.supp")
+  set(common_valgrind_suppressions "${CMAKE_CURRENT_LIST_DIR}/ctest_memcheck_$ENV{CMAKE_VALGRIND_CONFIGURATION}.valgrind.supp")
+  if (EXISTS "${valgrind_suppressions}")
+    set(CTEST_MEMORYCHECK_SUPPRESSIONS_FILE "${valgrind_suppressions}")
+  elseif (EXISTS "${common_valgrind_suppressions}")
+    set(CTEST_MEMORYCHECK_SUPPRESSIONS_FILE "${common_valgrind_suppressions}")
+  endif ()
+
+  set(valgrind_skip
+    /bin/*
+    /sbin/*
+    /usr/bin/*
+    /usr/lib64/qt5/bin/*
+    /usr/lib64/qt6/bin/*
+    /usr/lib64/qt6/libexec/*
+    bootstrap
+    sample_script
+    */Tests/CTestTest2/kwsysBin/*
+    */Tests/CTestTestCrash/Crash
+    *QtAutogen
+    # Ignore ISPC files which may contain unimplemented instructions.
+    */build/Tests/ISPC/TryCompile/ISPCTryCompile
+    # Ignore anything CI downloads.
+    */.gitlab/*)
+  list(JOIN valgrind_skip "," valgrind_skip)
+  string(CONCAT valgrind_options
+    "--gen-suppressions=all "
+    "--child-silent-after-fork=yes "
+    "--trace-children=yes "
+    "--trace-children-skip=${valgrind_skip} "
+    "--track-origins=yes "
+    "-q "
+    "--leak-check=yes "
+    "--show-reachable=yes "
+    "--num-callers=50 "
+    "-v ")
+  set(CTEST_MEMORYCHECK_COMMAND_OPTIONS "${valgrind_options}")
+endif ()