[𝘀𝗽𝗿] initial version

Created using spr 1.3.6-beta.1

Author: arichardson

compiler-rt/cmake/Modules/AddCompilerRT.cmake

@@ -773,6 +773,7 @@ function(configure_compiler_rt_lit_site_cfg input output)
 
   string(REPLACE ${CMAKE_CFG_INTDIR} ${LLVM_BUILD_MODE} COMPILER_RT_RESOLVED_TEST_COMPILER ${COMPILER_RT_TEST_COMPILER})
   string(REPLACE ${CMAKE_CFG_INTDIR} ${LLVM_BUILD_MODE} COMPILER_RT_RESOLVED_OUTPUT_DIR ${COMPILER_RT_OUTPUT_DIR})
+  string(REPLACE ${CMAKE_CFG_INTDIR} ${LLVM_BUILD_MODE} COMPILER_RT_RESOLVED_EXEC_OUTPUT_DIR ${COMPILER_RT_EXEC_OUTPUT_DIR})
   string(REPLACE ${CMAKE_CFG_INTDIR} ${LLVM_BUILD_MODE} COMPILER_RT_RESOLVED_LIBRARY_OUTPUT_DIR ${output_dir})
 
   configure_lit_site_cfg(${input} ${output})

compiler-rt/test/hwasan/lit.cfg.py

@@ -2,6 +2,9 @@
 
 import os
 
+from lit.llvm import llvm_config
+from lit.llvm.subst import ToolSubst, FindTool
+
 # Setup config name.
 config.name = "HWAddressSanitizer" + getattr(config, "name_suffix", "default")
 
@@ -74,6 +77,12 @@ def build_invocation(compile_flags):
     ("%env_hwasan_opts=", "env HWASAN_OPTIONS=" + default_hwasan_opts_str)
 )
 
+# Ensure that we can use hwasan_symbolize from the expected location
+llvm_config.add_tool_substitutions(
+    [ToolSubst("hwasan_symbolize", unresolved="fatal")],
+    search_dirs=[config.compiler_rt_bindir],
+)
+
 # Default test suffixes.
 config.suffixes = [".c", ".cpp"]
 

compiler-rt/test/lit.common.configured.in

@@ -28,6 +28,7 @@ set_default("python_executable", "@Python3_EXECUTABLE@")
 set_default("compiler_rt_debug", @COMPILER_RT_DEBUG_PYBOOL@)
 set_default("compiler_rt_intercept_libdispatch", @COMPILER_RT_INTERCEPT_LIBDISPATCH_PYBOOL@)
 set_default("compiler_rt_output_dir", "@COMPILER_RT_RESOLVED_OUTPUT_DIR@")
+set_default("compiler_rt_bindir", "@COMPILER_RT_RESOLVED_EXEC_OUTPUT_DIR@")
 set_default("compiler_rt_libdir", "@COMPILER_RT_RESOLVED_LIBRARY_OUTPUT_DIR@")
 set_default("emulator", "@COMPILER_RT_EMULATOR@")
 set_default("asan_shadow_scale", "@COMPILER_RT_ASAN_SHADOW_SCALE@")

libcxx/CMakeLists.txt

@@ -413,9 +413,9 @@ if(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR AND NOT APPLE)
     string(APPEND LIBCXX_TARGET_SUBDIR /${LIBCXX_LIBDIR_SUBDIR})
   endif()
   set(LIBCXX_LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR}/${LIBCXX_TARGET_SUBDIR})
-  set(LIBCXX_GENERATED_INCLUDE_DIR "${LLVM_BINARY_DIR}/include/c++/v1")
-  set(LIBCXX_GENERATED_MODULE_DIR "${LLVM_BINARY_DIR}/modules/c++/v1")
-  set(LIBCXX_GENERATED_INCLUDE_TARGET_DIR "${LLVM_BINARY_DIR}/include/${LIBCXX_TARGET_SUBDIR}/c++/v1")
+  set(LIBCXX_GENERATED_INCLUDE_DIR "${LIBCXX_BINARY_DIR}/include/c++/v1")
+  set(LIBCXX_GENERATED_MODULE_DIR "${LIBCXX_BINARY_DIR}/modules/c++/v1")
+  set(LIBCXX_GENERATED_INCLUDE_TARGET_DIR "${LIBCXX_BINARY_DIR}/include/${LIBCXX_TARGET_SUBDIR}/c++/v1")
   set(LIBCXX_INSTALL_LIBRARY_DIR lib${LLVM_LIBDIR_SUFFIX}/${LIBCXX_TARGET_SUBDIR} CACHE STRING
       "Path where built libc++ libraries should be installed.")
   set(LIBCXX_INSTALL_INCLUDE_TARGET_DIR "${CMAKE_INSTALL_INCLUDEDIR}/${LIBCXX_TARGET_SUBDIR}/c++/v1" CACHE STRING
@@ -424,13 +424,11 @@ if(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR AND NOT APPLE)
 else()
   if(LLVM_LIBRARY_OUTPUT_INTDIR)
     set(LIBCXX_LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR})
-    set(LIBCXX_GENERATED_INCLUDE_DIR "${LLVM_BINARY_DIR}/include/c++/v1")
-    set(LIBCXX_GENERATED_MODULE_DIR "${LLVM_BINARY_DIR}/modules/c++/v1")
   else()
     set(LIBCXX_LIBRARY_DIR ${CMAKE_BINARY_DIR}/lib${LIBCXX_LIBDIR_SUFFIX})
-    set(LIBCXX_GENERATED_INCLUDE_DIR "${CMAKE_BINARY_DIR}/include/c++/v1")
-    set(LIBCXX_GENERATED_MODULE_DIR "${CMAKE_BINARY_DIR}/modules/c++/v1")
   endif()
+  set(LIBCXX_GENERATED_INCLUDE_DIR "${LIBCXX_BINARY_DIR}/include/c++/v1")
+  set(LIBCXX_GENERATED_MODULE_DIR "${LIBCXX_BINARY_DIR}/modules/c++/v1")
   set(LIBCXX_GENERATED_INCLUDE_TARGET_DIR "${LIBCXX_GENERATED_INCLUDE_DIR}")
   set(LIBCXX_INSTALL_LIBRARY_DIR lib${LIBCXX_LIBDIR_SUFFIX} CACHE STRING
       "Path where built libc++ libraries should be installed.")

libcxxabi/CMakeLists.txt

@@ -86,11 +86,7 @@ set(LIBCXXABI_STATIC_OUTPUT_NAME "c++abi" CACHE STRING "Output name for the stat
 
 set(LIBCXXABI_INSTALL_INCLUDE_DIR "${CMAKE_INSTALL_INCLUDEDIR}/c++/v1" CACHE STRING "Path to install the libc++abi headers at.")
 
-if(LLVM_LIBRARY_OUTPUT_INTDIR)
-  set(LIBCXXABI_GENERATED_INCLUDE_DIR "${LLVM_BINARY_DIR}/include/c++/v1")
-else()
-  set(LIBCXXABI_GENERATED_INCLUDE_DIR "${CMAKE_BINARY_DIR}/include/c++/v1")
-endif()
+set(LIBCXXABI_GENERATED_INCLUDE_DIR "${LIBCXXABI_BINARY_DIR}/include/c++/v1")
 
 set(LIBCXXABI_LIBCXX_LIBRARY_PATH "" CACHE PATH "The path to libc++ library.")
 set(LIBCXXABI_LIBRARY_VERSION "1.0" CACHE STRING

runtimes/CMakeLists.txt

@@ -49,6 +49,16 @@ function(runtime_register_component name)
   set_property(GLOBAL APPEND PROPERTY SUB_COMPONENTS ${name})
 endfunction()
 
+# This file can be used in two ways: it is either called from llvm/CMakeLists.txt
+# where case we reuse the build tree of the top-level build or directly invoked
+# in this directory. In that case we might be building against a LLVM install
+# tree and might not have a valid build tree set up yet.
+set(RUNTIMES_STANDALONE_BUILD OFF)
+if ("${CMAKE_SOURCE_DIR}" STREQUAL "${CMAKE_CURRENT_LIST_DIR}")
+  message(STATUS "Performing standalone runtimes build.")
+  set(RUNTIMES_STANDALONE_BUILD ON)
+endif()
+
 find_package(LLVM PATHS "${LLVM_BINARY_DIR}" NO_DEFAULT_PATH NO_CMAKE_FIND_ROOT_PATH)
 find_package(Clang PATHS "${LLVM_BINARY_DIR}" NO_DEFAULT_PATH NO_CMAKE_FIND_ROOT_PATH)
 
@@ -68,8 +78,13 @@ endif()
 
 # Setting these variables will allow the sub-build to put their outputs into
 # the library and bin directories of the top-level build.
-set(LLVM_LIBRARY_OUTPUT_INTDIR ${LLVM_LIBRARY_DIR})
-set(LLVM_RUNTIME_OUTPUT_INTDIR ${LLVM_TOOLS_BINARY_DIR})
+if (RUNTIMES_STANDALONE_BUILD)
+  set(LLVM_LIBRARY_OUTPUT_INTDIR ${CMAKE_CURRENT_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX})
+  set(LLVM_RUNTIME_OUTPUT_INTDIR ${CMAKE_CURRENT_BINARY_DIR}/bin)
+else()
+  set(LLVM_LIBRARY_OUTPUT_INTDIR ${LLVM_LIBRARY_DIR})
+  set(LLVM_RUNTIME_OUTPUT_INTDIR ${LLVM_TOOLS_BINARY_DIR})
+endif()
 
 # This variable makes sure that e.g. llvm-lit is found.
 set(LLVM_MAIN_SRC_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../llvm)
@@ -239,6 +254,21 @@ foreach(entry ${runtimes})
 endforeach()
 
 if(LLVM_INCLUDE_TESTS)
+  # If built with the runtimes build (rooted at runtimes/CMakeLists.txt), we
+  # won't have llvm-lit. If built with the bootstrapping build (rooted at
+  # llvm/CMakeLists.txt), the top-level llvm CMake invocation already generated
+  # the llvm-lit script.
+  if (RUNTIMES_STANDALONE_BUILD)
+    # Ensure that the appropriate variables for lit are set before adding any
+    # runtimes since their CMake tests configuration might depend on lit being
+    # present. This ensures that the testsuites use a local lit from the build
+    # dir rather than ${LLVM_INSTALL_DIR}/bin/llvm-lit (which may not exist if
+    # LLVM_BINARY_DIR points at an installed LLVM tree rather than a build tree).
+    set(LLVM_LIT_OUTPUT_DIR ${CMAKE_CURRENT_BINARY_DIR}/bin)
+    get_llvm_lit_path(_base_dir _file_name)
+    set(LLVM_EXTERNAL_LIT "${_base_dir}/${_file_name}" CACHE STRING "Command used to spawn lit" FORCE)
+  endif()
+
   set(LIT_ARGS_DEFAULT "-sv --show-xfail --show-unsupported")
   if (MSVC OR XCODE)
     set(LIT_ARGS_DEFAULT "${LIT_ARGS_DEFAULT} --no-progress-bar")
@@ -276,6 +306,8 @@ if(LLVM_INCLUDE_TESTS)
     # If built by manually invoking cmake on this directory, we don't have
     # llvm-lit. If invoked via llvm/runtimes, the toplevel llvm cmake
     # invocation already generated the llvm-lit script.
+    # NOTE: this must be called fater all testsuites have been added, since
+    # otherwise the generated llvm-lit does not have all required path mappings.
     add_subdirectory(${LLVM_MAIN_SRC_DIR}/utils/llvm-lit
                      ${CMAKE_CURRENT_BINARY_DIR}/llvm-lit)
   endif()
@@ -309,10 +341,10 @@ if(SUB_COMPONENTS)
   if(LLVM_RUNTIMES_TARGET)
     configure_file(
       ${CMAKE_CURRENT_SOURCE_DIR}/Components.cmake.in
-      ${LLVM_BINARY_DIR}/runtimes/${LLVM_RUNTIMES_TARGET}/Components.cmake)
+      ${CMAKE_CURRENT_BINARY_DIR}/runtimes/${LLVM_RUNTIMES_TARGET}/Components.cmake)
   else()
     configure_file(
       ${CMAKE_CURRENT_SOURCE_DIR}/Components.cmake.in
-      ${LLVM_BINARY_DIR}/runtimes/Components.cmake)
+      ${CMAKE_CURRENT_BINARY_DIR}/runtimes/Components.cmake)
   endif()
 endif()