From 9d268e1d169320375bec1cfee4e0e35ff2e1fdf5 Mon Sep 17 00:00:00 2001
From: Martin Gerhardy <martin.gerhardy@gmail.com>
Date: Sat, 13 Oct 2018 11:59:13 +0200
Subject: [PATCH] CMAKE: added sanitizers

---
 .clang-tidy                   |  4 ++++
 CMakeLists.txt                | 29 +++++++++++++++++++++++++++++
 contrib/.clang-tidy           |  6 ++++++
 src/tools/glslang/.clang-tidy |  6 ++++++
 4 files changed, 45 insertions(+)
 create mode 100644 .clang-tidy
 create mode 100644 contrib/.clang-tidy
 create mode 100644 src/tools/glslang/.clang-tidy

diff --git a/.clang-tidy b/.clang-tidy
new file mode 100644
index 000000000..3b47c1bda
--- /dev/null
+++ b/.clang-tidy
@@ -0,0 +1,4 @@
+---
+Checks:          'clang-diagnostic-*,clang-analyzer-*,modernizer*,-clang-analyzer-alpha*'
+...
+
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 594b009f1..461c23222 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -29,6 +29,9 @@ option(USE_CCACHE "Use ccache" ON)
 option(USE_GPROF "Use gprof - will become slow" OFF)
 option(USE_GCOV "Use gcov - will become slow" OFF)
 option(USE_DOXYGEN_CHECK "Use -Wdocumentation if available" OFF)
+option(USE_LINK_WHAT_YOU_USE "Enable link-what-you-use" OFF)
+option(USE_CPPCHECK "Enable cppcheck" OFF)
+option(USE_CLANG_TIDY "Enable Clang Tidy" OFF)
 set(DEBUGGER "gdb" CACHE STRING "Which debugger should be used")
 set_property(CACHE DEBUGGER PROPERTY STRINGS gdb lldb)
 set(SERVER_HOST "localhost" CACHE STRING "Host where the server is running on")
@@ -104,11 +107,37 @@ if (CCACHE)
 		message(STATUS "Using ccache")
 		set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK ${CCACHE})
 		set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ${CCACHE})
+		if (${CMAKE_CXX_COMPILER_ID} MATCHES "Clang")
+			set(ENV{CCACHE_CPP2} "yes")
+			add_compile_options(-Qunused-arguments)
+		endif()
 	endif()
 else()
 	message(STATUS "ccache not found")
 endif()
 
+if (USE_LINK_WHAT_YOU_USE)
+	set(CMAKE_LINK_WHAT_YOU_USE ON)
+endif()
+
+if (USE_CLANG_TIDY)
+	find_host_program(CLANG_TIDY_EXECUTABLE NAMES clang-tidy clang-tidy-3.8)
+	if (CLANG_TIDY_EXECUTABLE)
+		set(CLANG_TIDY_OPTS ${CLANG_TIDY_EXECUTABLE})
+		set(CMAKE_C_CLANG_TIDY "${CLANG_TIDY_OPTS}")
+		set(CMAKE_CXX_CLANG_TIDY "${CLANG_TIDY_OPTS}")
+	endif()
+endif()
+
+if (USE_CPPCHECK)
+	find_host_program(CPPCHECK_EXECUTABLE NAMES cppcheck)
+	if (CPPCHECK_EXECUTABLE)
+		set(CPPCHECK_OPTS ${CPPCHECK_EXECUTABLE} "--enable=all")
+		set(CMAKE_C_CPPCHECK "${CLANG_TIDY_OPTS}")
+		set(CMAKE_CXX_CPPCHECK "${CLANG_TIDY_OPTS}")
+	endif()
+endif()
+
 find_host_program(GDB_EXECUTABLE NAMES ${GDB_BINARY} gdb)
 find_host_program(LLDB_EXECUTABLE NAMES ${LLDB_BINARY} lldb)
 find_host_program(GIT_EXECUTABLE NAMES ${GIT_BINARY} git)
diff --git a/contrib/.clang-tidy b/contrib/.clang-tidy
new file mode 100644
index 000000000..381a0f45a
--- /dev/null
+++ b/contrib/.clang-tidy
@@ -0,0 +1,6 @@
+---
+# We want to disable all checks for 3rd party code.  However, clang-tidy will
+# assume we did not configure it correctly.  Just add one check that will never
+# be found.
+Checks: '-*,llvm-twine-local'
+...
diff --git a/src/tools/glslang/.clang-tidy b/src/tools/glslang/.clang-tidy
new file mode 100644
index 000000000..381a0f45a
--- /dev/null
+++ b/src/tools/glslang/.clang-tidy
@@ -0,0 +1,6 @@
+---
+# We want to disable all checks for 3rd party code.  However, clang-tidy will
+# assume we did not configure it correctly.  Just add one check that will never
+# be found.
+Checks: '-*,llvm-twine-local'
+...