gitlab-ci: add clang asan job

.gitlab/ci/configure_fedora34_asan.cmake

@@ -0,0 +1,4 @@
+set(CMAKE_C_FLAGS "-fsanitize=address" CACHE STRING "")
+set(CMAKE_CXX_FLAGS "-fsanitize=address" CACHE STRING "")
+
+include("${CMAKE_CURRENT_LIST_DIR}/configure_fedora34_common.cmake")

.gitlab/ci/ctest_exclusions.cmake

@@ -13,6 +13,13 @@ if (CTEST_CMAKE_GENERATOR MATCHES "Visual Studio")
     "^ExternalProjectUpdateSetup$")
 endif ()
 
+if ("$ENV{CMAKE_CONFIGURATION}" MATCHES "_asan")
+  list(APPEND test_exclusions
+    CTestTest2 # crashes on purpose
+    BootstrapTest # no need to cover this for asan
+    )
+endif()
+
 string(REPLACE ";" "|" test_exclusions "${test_exclusions}")
 if (test_exclusions)
   set(test_exclusions "(${test_exclusions})")

.gitlab/ci/ctest_memcheck.cmake

@@ -0,0 +1,45 @@
+cmake_minimum_required(VERSION 3.8)
+
+include("${CMAKE_CURRENT_LIST_DIR}/gitlab_ci.cmake")
+
+# Read the files from the build directory.
+ctest_read_custom_files("${CTEST_BINARY_DIRECTORY}")
+
+# Pick up from where the configure left off.
+ctest_start(APPEND)
+
+include(ProcessorCount)
+ProcessorCount(nproc)
+if (NOT "$ENV{CTEST_MAX_PARALLELISM}" STREQUAL "")
+  if (nproc GREATER "$ENV{CTEST_MAX_PARALLELISM}")
+    set(nproc "$ENV{CTEST_MAX_PARALLELISM}")
+  endif ()
+endif ()
+
+set(CTEST_MEMORYCHECK_TYPE "$ENV{CTEST_MEMORYCHECK_TYPE}")
+set(CTEST_MEMORYCHECK_SANITIZER_OPTIONS "$ENV{CTEST_MEMORYCHECK_SANITIZER_OPTIONS}")
+
+set(lsan_suppressions "${CMAKE_CURRENT_LIST_DIR}/ctest_memcheck_$ENV{CMAKE_CONFIGURATION}.lsan.supp")
+if (EXISTS "${lsan_suppressions}")
+  set(ENV{LSAN_OPTIONS} "suppressions='${lsan_suppressions}'")
+endif ()
+
+include("${CMAKE_CURRENT_LIST_DIR}/ctest_exclusions.cmake")
+ctest_memcheck(
+  PARALLEL_LEVEL "${nproc}"
+  TEST_LOAD "${nproc}"
+  RETURN_VALUE test_result
+  EXCLUDE "${test_exclusions}"
+  DEFECT_COUNT defects)
+ctest_submit(PARTS Test)
+ctest_submit(PARTS Memcheck)
+
+if (test_result)
+  message(FATAL_ERROR
+    "Failed to test")
+endif ()
+
+if (defects)
+  message(FATAL_ERROR
+    "Found ${defects} memcheck defects")
+endif ()

.gitlab/ci/ctest_memcheck_fedora34_asan.lsan.supp

@@ -0,0 +1 @@
+# Add 'leak:<pattern>' lines here to suppress known leaks.

.gitlab/ci/env_fedora34_asan.sh

@@ -0,0 +1,2 @@
+export CC=/usr/bin/clang
+export CXX=/usr/bin/clang++

.gitlab/os-linux.yml

@@ -158,6 +158,27 @@
         CMAKE_CONFIGURATION: debian10_makefiles_clang
         CMAKE_GENERATOR: "Unix Makefiles"
 
+### Sanitizers
+
+.fedora_memcheck:
+    variables:
+        CMAKE_BUILD_TYPE: RelWithDebInfo
+
+.fedora_asan_addon:
+    extends: .fedora_memcheck
+
+    variables:
+        CTEST_MEMORYCHECK_TYPE: AddressSanitizer
+        CTEST_MEMORYCHECK_SANITIZER_OPTIONS: ""
+
+.fedora34_asan:
+    extends:
+        - .fedora34
+        - .fedora_asan_addon
+
+    variables:
+        CMAKE_CONFIGURATION: fedora34_asan
+
 ### Intel Compiler
 
 .intelcompiler:
@@ -306,6 +327,15 @@
 
     interruptible: true
 
+.cmake_memcheck_linux:
+    stage: test
+
+    script:
+        - *before_script_linux
+        - "$LAUNCHER ctest --output-on-failure -V -S .gitlab/ci/ctest_memcheck.cmake"
+
+    interruptible: true
+
 .cmake_build_linux_release:
     stage: build