Build changes.

- Added support for building with Clang and LLD
- Switched to use csc.exe Roslyn compiler under Mono
- Disable most of the support for explicit pre-C++11 ABI since we do not
need it anymore

Author: tritao

build/Helpers.lua

@@ -12,7 +12,7 @@ newoption {
 
 newoption {
    trigger     = "no-cxx11-abi",
-   description = "disable cxx11 abi on gcc 4.9+"
+   description = "disable C++-11 ABI on GCC 4.9+"
 }
 
 explicit_target_architecture = _OPTIONS["arch"]
@@ -40,7 +40,15 @@ if not _OPTIONS["arch"] then
   _OPTIONS["arch"] = target_architecture()
 end
 
-action = _ACTION or ""
+-- Uncomment to enable Roslyn compiler.
+--[[
+premake.override(premake.tools.dotnet, "gettoolname", function(base, cfg, tool)
+  if tool == "csc" then
+    return "csc"
+  end
+  return base(cfg, tool)
+end)
+]]
 
 basedir = path.getdirectory(_PREMAKE_COMMAND)
 depsdir = path.getabsolute("../deps");
@@ -50,7 +58,7 @@ bindir = path.getabsolute("../bin");
 examplesdir = path.getabsolute("../examples");
 testsdir = path.getabsolute("../tests");
 
-builddir = path.getabsolute("./" .. action);
+builddir = path.getabsolute("./" .. _ACTION);
 if _ARGS[1] then
     builddir = path.getabsolute("./" .. _ARGS[1]);
 end
@@ -72,6 +80,7 @@ msvc_cpp_defines = { }
 generate_build_config = true
 
 function string.starts(str, start)
+   if str == nil then return end
    return string.sub(str, 1, string.len(start)) == start
 end
 
@@ -99,6 +108,9 @@ function SetupNativeProject()
     buildoptions { gcc_buildflags }
     links { "stdc++" }
 
+  filter { "toolset:clang", "system:not macosx" }
+    linkoptions { "-fuse-ld=/usr/bin/ld.lld" }
+
   filter { "system:macosx", "language:C++" }
     buildoptions { gcc_buildflags, "-stdlib=libc++" }
     links { "c++" }
@@ -116,12 +128,6 @@ function SetupNativeProject()
     systemversion("latest")
 
   filter {}
-
-  if os.istarget("linux") then
-    if not UseCxx11ABI() then
-      defines { "_GLIBCXX_USE_CXX11_ABI=0" }
-    end
-  end
 end
 
 function SetupManagedProject()
@@ -195,13 +201,21 @@ function StaticLinksOpt(libnames)
   links(existing_libnames)
 end
 
+function UseClang()
+  local compiler = os.getenv("CXX")
+  return string.match(compiler, "clang")
+end
+
 function GccVersion()
   local compiler = os.getenv("CXX")
   if compiler == nil then
     compiler = "gcc"
   end
   local out = os.outputof(compiler.." -v")
   local version = string.match(out, "gcc version [0-9\\.]+")
+  if version == nil then
+    version = string.match(out, "clang version [0-9\\.]+")
+  end
   return string.sub(version, 13)
 end
 

build/LLVM.lua

@@ -10,6 +10,7 @@ local LLVMRootDirRelease = ""
 require "scripts/LLVM"
 
 function SearchLLVM()
+  local basedir = path.getdirectory(_PREMAKE_COMMAND)
   LLVMRootDirDebug = basedir .. "/scripts/" .. get_llvm_package_name(nil, "Debug")
   LLVMRootDirRelease = basedir .. "/scripts/" .. get_llvm_package_name()
 

build/Tests.lua

@@ -190,6 +190,9 @@ function SetupTestProjectsCSharp(name, depends, extraFiles, suffix)
 
     LinkNUnit()
     links { "CppSharp.Runtime" }
+
+    filter { "action:netcore" }
+      dotnetframework "netcoreapp2.0"
 end
 
 function SetupTestProjectsCLI(name, extraFiles, suffix)

build/premake5.lua

@@ -30,6 +30,7 @@ solution "CppSharp"
     include (srcdir .. "/AST")
     include (srcdir .. "/CppParser")
     include (srcdir .. "/CppParser/Bindings")
+    include (srcdir .. "/CppParser/Bootstrap")
     include (srcdir .. "/CppParser/ParserGen")
     include (srcdir .. "/Parser")
     include (srcdir .. "/CLI")

build/scripts/ClangToolset.cmake

@@ -0,0 +1,19 @@
+SET (CMAKE_C_COMPILER             "/usr/bin/clang")
+SET (CMAKE_C_FLAGS                "-Wall -std=c99")
+SET (CMAKE_C_FLAGS_DEBUG          "-glldb")
+SET (CMAKE_C_FLAGS_MINSIZEREL     "-Os -DNDEBUG")
+SET (CMAKE_C_FLAGS_RELEASE        "-O4 -DNDEBUG")
+SET (CMAKE_C_FLAGS_RELWITHDEBINFO "-O2 -glldb")
+
+SET (CMAKE_CXX_COMPILER             "/usr/bin/clang++")
+SET (CMAKE_CXX_FLAGS                "-Wall")
+SET (CMAKE_CXX_FLAGS_DEBUG          "-glldb")
+SET (CMAKE_CXX_FLAGS_MINSIZEREL     "-Os -DNDEBUG")
+SET (CMAKE_CXX_FLAGS_RELEASE        "-O4 -DNDEBUG")
+SET (CMAKE_CXX_FLAGS_RELWITHDEBINFO "-O2 -glldb")
+
+SET (CMAKE_AR      "/usr/bin/llvm-ar")
+SET (CMAKE_LINKER  "/usr/bin/llvm-ld")
+SET (CMAKE_NM      "/usr/bin/llvm-nm")
+SET (CMAKE_OBJDUMP "/usr/bin/llvm-objdump")
+SET (CMAKE_RANLIB  "/usr/bin/llvm-ranlib")

build/scripts/LLVM.lua

@@ -2,6 +2,7 @@ require "Build"
 require "Utils"
 require "../Helpers"
 
+local basedir = path.getdirectory(_PREMAKE_COMMAND)
 local llvm = path.getabsolute(basedir .. "/../deps/llvm")
 
 -- Prevent premake from inserting /usr/lib64 search path on linux. GCC does not need this path specified
@@ -112,15 +113,19 @@ function get_llvm_package_name(rev, conf, arch)
   local toolset = get_toolset_configuration_name(arch)
   table.insert(components, toolset)
 
-  if os.istarget("linux") then
-    local version = GccVersion()
-    if version < "5.0.0" then
-      -- Minor version matters only with gcc 4.8/4.9
-      version = string.match(version, "%d+.%d+")
-    else
-      version = string.match(version, "%d+")
-    end
-    table.insert(components, "gcc-"..version)
+	if os.istarget("linux") then
+		if UseClang() then
+			table.insert(components, "clang")
+		else
+			local version = GccVersion()
+			if version < "5.0.0" then
+				-- Minor version matters only with gcc 4.8/4.9
+				version = string.match(version, "%d+.%d+")
+			else
+				version = string.match(version, "%d+")
+			end
+			table.insert(components, "gcc-"..version)
+		end
   end
 
   if not conf then
@@ -129,12 +134,6 @@ function get_llvm_package_name(rev, conf, arch)
 
   table.insert(components, conf)
 
-  if os.istarget("linux") then
-    if GccVersion() >= "4.9.0" and not UseCxx11ABI() then
-      table.insert(components, "no-cxx11")
-    end
-  end
-
   return table.concat(components, "-")
 end
 
@@ -216,24 +215,24 @@ function cmake(gen, conf, builddir, options)
 	if options == nil then
 		options = ""
 	end
-	if not UseCxx11ABI() then
-		options = options.." -DCMAKE_CXX_FLAGS='-D_GLIBCXX_USE_CXX11_ABI=0'"
+
+	if UseClang() then
+		local cmake = path.join(basedir, "scripts", "ClangToolset.cmake")
+		options = options .. " -DLLVM_USE_LINKER=/usr/bin/ld.lld"
 	end
 
 	local cmd = cmake .. " -G " .. '"' .. gen .. '"'
  		.. ' -DCLANG_BUILD_TOOLS=false'
- 		.. ' -DCLANG_INSTALL_SCANBUILD=false'
- 		.. ' -DCLANG_INSTALL_SCANVIEW=false'
  		.. ' -DCLANG_TOOL_CLANG_DIFF_BUILD=false'
  		.. ' -DCLANG_TOOL_CLANG_FUNC_MAPPING_BUILD=false'
  		.. ' -DCLANG_TOOL_CLANG_IMPORT_TEST_BUILD=false'
  		.. ' -DCLANG_TOOL_CLANG_OFFLOAD_BUNDLER_BUILD=false'
  		.. ' -DCLANG_TOOL_CLANG_REFACTOR_BUILD=false'
  		.. ' -DCLANG_TOOL_CLANG_RENAME_BUILD=false'
  		.. ' -DCLANG_TOOL_DRIVER_BUILD=false'
- 		.. ' -DCLANG_TOOL_HANDLE_CXX_BUILD=false'
- 		.. ' -DCLANG_TOOL_HANDLE_LLVM_BUILD=false'
- 		.. ' -DLLVM_BUILD_TOOLS=false'
+		.. ' -DLLVM_BUILD_TOOLS=false'
+		.. ' -DLLVM_ENABLE_DUMP=true'
+		.. ' -DLLVM_ENABLE_DUMP=true'
  		.. ' -DLLVM_ENABLE_LIBEDIT=false'
  		.. ' -DLLVM_ENABLE_ZLIB=false'
  		.. ' -DLLVM_ENABLE_TERMINFO=false'
@@ -278,20 +277,17 @@ function cmake(gen, conf, builddir, options)
  		.. ' -DLLVM_TOOL_LLVM_LINK_BUILD=false'
  		.. ' -DLLVM_TOOL_LLVM_LTO_BUILD=false'
  		.. ' -DLLVM_TOOL_LLVM_LTO2_BUILD=false'
- 		.. ' -DLLVM_TOOL_LLVM_MCMARKUP_BUILD=false'
  		.. ' -DLLVM_TOOL_LLVM_MC_ASSEMBLE_FUZZER_BUILD=false'
  		.. ' -DLLVM_TOOL_LLVM_MC_BUILD=false'
  		.. ' -DLLVM_TOOL_LLVM_MC_DISASSEMBLE_FUZZER_BUILD=false'
  		.. ' -DLLVM_TOOL_LLVM_MCA_BUILD=false'
- 		.. ' -DLLVM_TOOL_LLVM_MC_FUZZER_BUILD=false'
  		.. ' -DLLVM_TOOL_LLVM_MODEXTRACT_BUILD=false'
  		.. ' -DLLVM_TOOL_LLVM_MT_BUILD=false'
  		.. ' -DLLVM_TOOL_LLVM_NM_BUILD=false'
  		.. ' -DLLVM_TOOL_LLVM_OBJCOPY_BUILD=false'
  		.. ' -DLLVM_TOOL_LLVM_OBJDUMP_BUILD=false'
  		.. ' -DLLVM_TOOL_LLVM_OPT_FUZZER_BUILD=false'
  		.. ' -DLLVM_TOOL_LLVM_OPT_REPORT_BUILD=false'
- 		.. ' -DLLVM_TOOL_LLVM_PDBDUMP_BUILD=false'
  		.. ' -DLLVM_TOOL_LLVM_PDBUTIL_BUILD=false'
  		.. ' -DLLVM_TOOL_LLVM_PROFDATA_BUILD=false'
  		.. ' -DLLVM_TOOL_LLVM_PDBUTIL_BUILD=false'
@@ -308,7 +304,6 @@ function cmake(gen, conf, builddir, options)
  		.. ' -DLLVM_TOOL_LLVM_UNDNAME_BUILD=false'
  		.. ' -DLLVM_TOOL_LLVM_XRAY_BUILD=false'
  		.. ' -DLLVM_TOOL_LTO_BUILD=false'
- 		.. ' -DLLVM_TOOL_MSBUILD_BUILD=false'
  		.. ' -DLLVM_TOOL_OBJ2YAML_BUILD=false'
  		.. ' -DLLVM_TOOL_OPT_BUILD=false'
  		.. ' -DLLVM_TOOL_OPT_VIEWER_BUILD=false'

src/CppParser/Bootstrap/Bootstrap.cs

@@ -19,8 +19,7 @@ static string GetSourceDirectory(string dir)
             {
                 var path = Path.Combine(directory.FullName, dir);
 
-                if (Directory.Exists(path) &&
-                    Directory.Exists(Path.Combine(directory.FullName, "patches")))
+                if (Directory.Exists(path))
                     return path;
 
                 directory = directory.Parent;
@@ -33,9 +32,7 @@ public void Setup(Driver driver)
         {
             driver.Options.GeneratorKind = GeneratorKind.CSharp;
             driver.Options.DryRun = true;
-            driver.ParserOptions.SetupXcode();
-            driver.ParserOptions.MicrosoftMode = false;
-            driver.ParserOptions.TargetTriple = "i686-apple-darwin12.4.0";
+            driver.ParserOptions.Setup();
 
             var module = driver.Options.AddModule("CppSharp");
 

src/CppParser/Bootstrap/premake5.lua

@@ -7,7 +7,9 @@ project "CppSharp.Parser.Bootstrap"
   debugdir "."
 
   files { "Bootstrap.cs", "*.lua" }
-  links { "CppSharp", "CppSharp.AST", "CppSharp.Generator", "System", "System.Core" }
+  links { "CppSharp", "CppSharp.AST", "CppSharp.Generator", "CppSharp.Parser" }
+
+  filter { "action:not netcore" }
+    links { "System", "System.Core" }
 
   SetupParser()
-  

src/Parser/premake5.lua

@@ -11,7 +11,7 @@ local function GenerateBuildConfig()
   file:close()
 end
 
-if generate_build_config == true then
+if generate_build_config == true and _ACTION then
   GenerateBuildConfig()
 end