[CMake] Track TSan's dependency on C++ headers

TSan relies on C++ headers, so when libc++ is being built as part of
the runtimes build, include an explicit dependency on cxx-headers which
is the same approach that's already used for other sanitizers.

Differential Revision: https://reviews.llvm.org/D88912

diff --git a/compiler-rt/cmake/Modules/AddCompilerRT.cmake b/compiler-rt/cmake/Modules/AddCompilerRT.cmake
index f2f0b5e..90a946a 100644 (file)
--- a/compiler-rt/cmake/Modules/AddCompilerRT.cmake
+++ b/compiler-rt/cmake/Modules/AddCompilerRT.cmake
@@ -140,6 +140,7 @@ endmacro()
 #                         CFLAGS <compile flags>
 #                         LINK_FLAGS <linker flags>
 #                         DEFS <compile definitions>
+#                         DEPS <dependencies>
 #                         LINK_LIBS <linked libraries> (only for shared library)
 #                         OBJECT_LIBS <object libraries to use as sources>
 #                         PARENT_TARGET <convenience parent target>
@@ -152,7 +153,7 @@ function(add_compiler_rt_runtime name type)
   cmake_parse_arguments(LIB
     ""
     "PARENT_TARGET"
-    "OS;ARCHS;SOURCES;CFLAGS;LINK_FLAGS;DEFS;LINK_LIBS;OBJECT_LIBS;ADDITIONAL_HEADERS"
+    "OS;ARCHS;SOURCES;CFLAGS;LINK_FLAGS;DEFS;DEPS;LINK_LIBS;OBJECT_LIBS;ADDITIONAL_HEADERS"
     ${ARGN})
   set(libnames)
   # Until we support this some other way, build compiler-rt runtime without LTO
@@ -329,6 +330,9 @@ function(add_compiler_rt_runtime name type)
         RUNTIME DESTINATION ${install_dir_${libname}}
                 ${COMPONENT_OPTION})
     endif()
+    if(LIB_DEPS)
+      add_dependencies(${libname} ${LIB_DEPS})
+    endif()
     set_target_properties(${libname} PROPERTIES
         OUTPUT_NAME ${output_name_${libname}})
     set_target_properties(${libname} PROPERTIES FOLDER "Compiler-RT Runtime")

diff --git a/compiler-rt/lib/tsan/CMakeLists.txt b/compiler-rt/lib/tsan/CMakeLists.txt
index c99b16d..3c6731d 100644 (file)
--- a/compiler-rt/lib/tsan/CMakeLists.txt
+++ b/compiler-rt/lib/tsan/CMakeLists.txt
@@ -25,6 +25,10 @@ append_list_if(SANITIZER_LIMIT_FRAME_SIZE -Wframe-larger-than=530
 append_list_if(COMPILER_RT_HAS_WGLOBAL_CONSTRUCTORS_FLAG -Wglobal-constructors
                TSAN_RTL_CFLAGS)
 
+if (TARGET cxx-headers OR HAVE_LIBCXX)
+  set(TSAN_DEPS cxx-headers)
+endif()
+
 set(TSAN_SOURCES
   rtl/tsan_clock.cpp
   rtl/tsan_debugging.cpp
@@ -142,6 +146,7 @@ if(APPLE)
                 RTSanitizerCommonSymbolizer
                 RTUbsan
     CFLAGS ${TSAN_RTL_CFLAGS}
+    DEPS ${TSAN_DEPS}
     LINK_FLAGS ${SANITIZER_COMMON_LINK_FLAGS} ${WEAK_SYMBOL_LINK_FLAGS}
     LINK_LIBS ${TSAN_LINK_LIBS} objc
     PARENT_TARGET tsan)
@@ -150,7 +155,8 @@ if(APPLE)
     ARCHS ${TSAN_SUPPORTED_ARCH}
     SOURCES ${TSAN_SOURCES} ${TSAN_CXX_SOURCES} ${TSAN_ASM_SOURCES}
     ADDITIONAL_HEADERS ${TSAN_HEADERS}
-    CFLAGS ${TSAN_RTL_CFLAGS})
+    CFLAGS ${TSAN_RTL_CFLAGS}
+    DEPS ${TSAN_DEPS})
 
   # Build and check Go runtime.
   set(BUILDGO_SCRIPT ${CMAKE_CURRENT_SOURCE_DIR}/go/buildgo.sh)
@@ -214,6 +220,7 @@ else()
               $<TARGET_OBJECTS:RTUbsan.${arch}>
       ADDITIONAL_HEADERS ${TSAN_HEADERS}
       CFLAGS ${TSAN_RTL_CFLAGS}
+      DEPS ${TSAN_DEPS}
       PARENT_TARGET tsan)
     add_compiler_rt_runtime(clang_rt.tsan_cxx
       STATIC
@@ -222,6 +229,7 @@ else()
               $<TARGET_OBJECTS:RTUbsan_cxx.${arch}>
       ADDITIONAL_HEADERS ${TSAN_HEADERS}
       CFLAGS ${TSAN_RTL_CFLAGS}
+      DEPS ${TSAN_DEPS}
       PARENT_TARGET tsan)
     list(APPEND TSAN_RUNTIME_LIBRARIES clang_rt.tsan-${arch}
                                        clang_rt.tsan_cxx-${arch})