gn build: Add some build files for clangd

Enough to build the clangd binaries, but this is still missing build
files for:
- fuzzer
- indexer
- index/dex/dexp
- benchmarks
- xpc

Differential Revision: https://reviews.llvm.org/D59899

llvm-svn: 357182

clang-tools-extra/clangd/refactor/tweaks/CMakeLists.txt

@@ -6,9 +6,9 @@ set(LLVM_LINK_COMPONENTS
 
 # A target containing all code tweaks (i.e. mini-refactorings) provided by
 # clangd.
-# Built as an object library to make sure linker does not remove global
+# Built as an object library to make sure the linker does not remove global
 # constructors that register individual tweaks in a global registry.
-# To enable these tweaks in exectubales or shared libraries, add
+# To enable these tweaks in executables or shared libraries, add
 # $<TARGET_OBJECTS:obj.clangDaemonTweaks> to a list of sources, see
 # clangd/tool/CMakeLists.txt for an example.
 add_clang_library(clangDaemonTweaks OBJECT

llvm/utils/gn/build/libs/atomic/BUILD.gn

@@ -0,0 +1,14 @@
+config("atomic_config") {
+  visibility = [ ":atomic" ]
+  libs = [ "atomic" ]
+}
+
+group("atomic") {
+  # Needed on platforms that have no native support for 64-bit atomics.
+  # FIXME: Check which platforms need this; certainly needs to be false on
+  # macOS and Windows, and doesn't seem to be needed on Linux either.
+  needs_explicit_lib_atomic = false
+  if (needs_explicit_lib_atomic) {
+    public_configs = [ ":atomic_config" ]
+  }
+}

llvm/utils/gn/secondary/BUILD.gn

@@ -13,6 +13,7 @@ group("default") {
     "//clang-tools-extra/clang-query/tool:clang-query",
     "//clang-tools-extra/clang-reorder-fields/tool:clang-reorder-fields",
     "//clang-tools-extra/clang-tidy/tool:clang-tidy",
+    "//clang-tools-extra/clangd/tool:clangd",
     "//clang-tools-extra/modularize",
     "//clang-tools-extra/pp-trace",
     "//clang/test",

llvm/utils/gn/secondary/clang-tools-extra/clang-apply-replacements/BUILD.gn

@@ -1,4 +1,5 @@
 static_library("clang-apply-replacements") {
+  output_name = "clangApplyReplacements"
   configs += [ "//llvm/utils/gn/build:clang_code" ]
   deps = [
     "//clang/lib/AST",

llvm/utils/gn/secondary/clang-tools-extra/clangd/BUILD.gn

@@ -0,0 +1,96 @@
+static_library("clangd") {
+  output_name = "clangDaemon"
+  configs += [ "//llvm/utils/gn/build:clang_code" ]
+  deps = [
+    "//clang-tools-extra/clang-tidy/abseil",
+    "//clang-tools-extra/clang-tidy/android",
+    "//clang-tools-extra/clang-tidy/boost",
+    "//clang-tools-extra/clang-tidy/bugprone",
+    "//clang-tools-extra/clang-tidy/cert",
+    "//clang-tools-extra/clang-tidy/cppcoreguidelines",
+    "//clang-tools-extra/clang-tidy/fuchsia",
+    "//clang-tools-extra/clang-tidy/google",
+    "//clang-tools-extra/clang-tidy/hicpp",
+    "//clang-tools-extra/clang-tidy/llvm",
+    "//clang-tools-extra/clang-tidy/misc",
+    "//clang-tools-extra/clang-tidy/modernize",
+    "//clang-tools-extra/clang-tidy/objc",
+    "//clang-tools-extra/clang-tidy/performance",
+    "//clang-tools-extra/clang-tidy/portability",
+    "//clang-tools-extra/clang-tidy/readability",
+    "//clang-tools-extra/clang-tidy/zircon",
+    "//clang/lib/AST",
+    "//clang/lib/ASTMatchers",
+    "//clang/lib/Basic",
+    "//clang/lib/Driver",
+    "//clang/lib/Format",
+    "//clang/lib/Frontend",
+    "//clang/lib/Index",
+    "//clang/lib/Lex",
+    "//clang/lib/Sema",
+    "//clang/lib/Serialization",
+    "//clang/lib/Tooling",
+    "//clang/lib/Tooling/Core",
+    "//clang/lib/Tooling/Inclusions",
+    "//clang/lib/Tooling/Refactoring",
+    "//llvm/lib/Support",
+    "//llvm/utils/gn/build/libs/atomic",
+    "//llvm/utils/gn/build/libs/pthread",
+  ]
+  include_dirs = [ "." ]
+  sources = [
+    "AST.cpp",
+    "Cancellation.cpp",
+    "ClangdLSPServer.cpp",
+    "ClangdServer.cpp",
+    "ClangdUnit.cpp",
+    "CodeComplete.cpp",
+    "CodeCompletionStrings.cpp",
+    "Compiler.cpp",
+    "Context.cpp",
+    "Diagnostics.cpp",
+    "DraftStore.cpp",
+    "ExpectedTypes.cpp",
+    "FS.cpp",
+    "FSProvider.cpp",
+    "FileDistance.cpp",
+    "FindSymbols.cpp",
+    "FuzzyMatch.cpp",
+    "GlobalCompilationDatabase.cpp",
+    "Headers.cpp",
+    "IncludeFixer.cpp",
+    "JSONTransport.cpp",
+    "Logger.cpp",
+    "Protocol.cpp",
+    "Quality.cpp",
+    "RIFF.cpp",
+    "Selection.cpp",
+    "SourceCode.cpp",
+    "TUScheduler.cpp",
+    "Threading.cpp",
+    "Trace.cpp",
+    "URI.cpp",
+    "XRefs.cpp",
+    "index/Background.cpp",
+    "index/BackgroundIndexStorage.cpp",
+    "index/CanonicalIncludes.cpp",
+    "index/FileIndex.cpp",
+    "index/Index.cpp",
+    "index/IndexAction.cpp",
+    "index/MemIndex.cpp",
+    "index/Merge.cpp",
+    "index/Ref.cpp",
+    "index/Serialization.cpp",
+    "index/Symbol.cpp",
+    "index/SymbolCollector.cpp",
+    "index/SymbolID.cpp",
+    "index/SymbolLocation.cpp",
+    "index/SymbolOrigin.cpp",
+    "index/YAMLSerialization.cpp",
+    "index/dex/Dex.cpp",
+    "index/dex/Iterator.cpp",
+    "index/dex/PostingList.cpp",
+    "index/dex/Trigram.cpp",
+    "refactor/Tweak.cpp",
+  ]
+}

llvm/utils/gn/secondary/clang-tools-extra/clangd/refactor/tweaks/BUILD.gn

@@ -0,0 +1,17 @@
+# A target containing all code tweaks (i.e. mini-refactorings) provided by
+# clangd.
+# Built as a source_set to make sure the linker does not remove global
+# constructors that register individual tweaks in a global registry.
+source_set("tweaks") {
+  configs += [ "//llvm/utils/gn/build:clang_code" ]
+  deps = [
+    "//clang-tools-extra/clangd",
+    "//clang/lib/AST",
+    "//clang/lib/Tooling/Core",
+    "//llvm/lib/Support",
+  ]
+  include_dirs = [ "../.." ]
+  sources = [
+    "SwapIfBranches.cpp",
+  ]
+}

llvm/utils/gn/secondary/clang-tools-extra/clangd/tool/BUILD.gn

@@ -0,0 +1,50 @@
+import("//llvm/utils/gn/build/write_cmake_config.gni")
+
+declare_args() {
+  # Whether to build clangd's XPC components.
+  clangd_build_xpc = false
+}
+
+write_cmake_config("features") {
+  # FIXME: Try moving Features.inc.in to tools, seems like a better location.
+  input = "../Features.inc.in"
+  output = "$target_gen_dir/Features.inc"
+  values = []
+  if (clangd_build_xpc) {
+    values += [ "CLANGD_BUILD_XPC=1" ]
+  } else {
+    values += [ "CLANGD_BUILD_XPC=0" ]
+  }
+}
+
+executable("clangd") {
+  configs += [ "//llvm/utils/gn/build:clang_code" ]
+  deps = [
+    ":features",
+    "//clang-tools-extra/clang-tidy",
+    "//clang-tools-extra/clangd",
+    "//clang-tools-extra/clangd/refactor/tweaks",
+    "//clang/lib/AST",
+    "//clang/lib/Basic",
+    "//clang/lib/Format",
+    "//clang/lib/Frontend",
+    "//clang/lib/Sema",
+    "//clang/lib/Tooling",
+    "//clang/lib/Tooling/Core",
+    "//llvm/lib/Support",
+  ]
+
+  include_dirs = [
+    "..",
+
+    # To pick up the generated inc files.
+    "$target_gen_dir",
+  ]
+  sources = [
+    "ClangdMain.cpp",
+  ]
+
+  if (clangd_build_xpc) {
+    # FIXME: Depend on clangdXpcJsonConversions, clangdXpcTransport
+  }
+}