diff options
Diffstat (limited to 'xmake/rules/c++/modules/clang/support.lua')
| -rw-r--r-- | xmake/rules/c++/modules/clang/support.lua | 79 |
1 files changed, 67 insertions, 12 deletions
diff --git a/xmake/rules/c++/modules/clang/support.lua b/xmake/rules/c++/modules/clang/support.lua index b1699d21a..a010fdde1 100644 --- a/xmake/rules/c++/modules/clang/support.lua +++ b/xmake/rules/c++/modules/clang/support.lua @@ -46,7 +46,10 @@ function _get_toolchain_includedirs_for_stlheaders(target, includedirs, clang) table.insert(argv, 1, "-stdlib=libstdc++") end end - local result = try {function () return os.iorunv(clang, argv, {envs = compinst:runenvs()}) end} + local compinst = target:compiler("cxx") + local result = try {function () + return os.iorunv(clang, argv, {envs = compinst and compinst:runenvs()}) + end} if result then for _, line in ipairs(result:split("\n", {plain = true})) do local line = line:trim() @@ -64,17 +67,25 @@ end function _get_std_module_manifest_path(target) local print_module_manifest_flag = get_print_library_module_manifest_path_flag(target) - local clang_path = path.directory(get_clang_path(target)) + local clang_path = get_clang_path(target) + if not clang_path then + return + end + local clang_dir = path.directory(clang_path) if print_module_manifest_flag then local compinst = target:compiler("cxx") - local outdata, _ = try { function() return os.iorunv(compinst:program(), {"-std=c++23", "-stdlib=libc++", "--sysroot=" .. path.join(clang_path, ".."), print_module_manifest_flag}, {envs = compinst:runenvs()}) end } + local sysroot = "--sysroot=" .. path.join(clang_dir, "..") + local flags = {"-std=c++23", "-stdlib=libc++", sysroot, print_module_manifest_flag} + local outdata, _ = try {function() + return os.iorunv(compinst:program(), flags, {envs = compinst:runenvs()}) + end} if outdata and not outdata:startswith("<NOT PRESENT>") then return outdata:trim() end end -- fallback on custom detection -- manifest can be found in <llvm_path>/lib subdirectory (i.e on debian it should be <llvm_path>/lib/x86_64-unknown-linux-gnu/) - local clang_lib_path = path.join(clang_path, "..", "lib") + local clang_lib_path = path.join(clang_dir, "..", "lib") local modules_json_path = path.join(clang_lib_path, "libc++.modules.json") if not os.isfile(modules_json_path) then modules_json_path = find_file("*/libc++.modules.json", clang_lib_path) @@ -119,6 +130,13 @@ function has_two_phase_compilation_support(target) return target:policy("build.c++.modules.two_phases") end +function has_precompile_reduced_bmi_support(target) + if not target:policy("build.c++.modules.clang.precompile_reduced_bmi") or not has_two_phase_compilation_support(target) then + return false + end + return get_modulesprecompilereducedbmiflag(target) ~= nil +end + -- flags that doesn't affect bmi generation function strippeable_flags() -- speculative list as there is no resource that list flags that prevent reusability, this list will likely be improve over time @@ -161,7 +179,11 @@ function toolchain_includedirs(target) runtime_flag = "-stdlib=libstdc++" end end - local _, result = try {function () return os.iorunv(clang, table.join({"-E", "-Wp,-v", "-xc++", os.nuldev()}, runtime_flag or {})) end} + local compinst = target:compiler("cxx") + local flags = table.join({"-E", "-Wp,-v", "-xc++", os.nuldev()}, runtime_flag or {}) + local _, result = try {function () + return os.iorunv(clang, flags, {envs = compinst and compinst:runenvs()}) + end} if result then for _, line in ipairs(result:split("\n", {plain = true})) do local line = line:trim() @@ -183,8 +205,10 @@ function get_clang_path(target) if not clang_path then local program, toolname = target:tool("cxx") if program and toolname:startswith("clang") then + local compinst = target:compiler("cxx") + local envs = compinst and compinst:runenvs() or os.getenvs() local clang = find_tool(toolname, {program = program, - envs = os.getenvs(), cachekey = "modules_support_clang_" .. toolname}) + envs = envs, cachekey = "modules_support_clang_" .. toolname}) if clang then clang_path = clang.program end @@ -201,8 +225,10 @@ function get_clang_version(target) if not clang_version then local program, toolname = target:tool("cxx") if program and toolname:startswith("clang") then + local compinst = target:compiler("cxx") + local envs = compinst and compinst:runenvs() or os.getenvs() local clang = find_tool(toolname, {program = program, version = true, - envs = os.getenvs(), cachekey = "modules_support_clang_" .. toolname}) + envs = envs, cachekey = "modules_support_clang_" .. toolname}) if clang then clang_version = clang.version end @@ -229,10 +255,13 @@ function get_clang_scan_deps(target) if dir and dir ~= "." and os.isdir(dir) then program = path.join(dir, program) end - local result = find_tool("clang-scan-deps", {program = program, version = true}) + local compinst = target:compiler("cxx") + local envs = compinst and compinst:runenvs() or os.getenvs() + local result = find_tool("clang-scan-deps", + {program = program, version = true, envs = envs}) if not result then -- find a system wide alternative - result = find_tool("clang-scan-deps", {version = true}) + result = find_tool("clang-scan-deps", {version = true, envs = envs}) end if result then clang_scan_deps = result.program @@ -295,9 +324,16 @@ function get_stdmodules(target) return {path.normalize(path.join(try_std_module_directory, "std.cppm")), path.normalize(path.join(try_std_module_directory, "std.compat.cppm"))} end -- then try the directory relative to clang bin directory - try_std_module_directory = path.join(path.directory(get_original_file(get_clang_path(target))), std_module_directory) - if os.isdir(try_std_module_directory) then - return {path.normalize(path.join(try_std_module_directory, "std.cppm")), path.normalize(path.join(try_std_module_directory, "std.compat.cppm"))} + local clang_path = get_clang_path(target) + if clang_path then + local clang_dir = path.directory(get_original_file(clang_path)) + try_std_module_directory = path.join(clang_dir, std_module_directory) + if os.isdir(try_std_module_directory) then + return { + path.normalize(path.join(try_std_module_directory, "std.cppm")), + path.normalize(path.join(try_std_module_directory, "std.compat.cppm")) + } + end end elseif cpplib == "stdc++" then -- dont be greedy and don't enable stdc++ std module support for llvm < 19 @@ -382,6 +418,25 @@ function get_modulesreducedbmiflag(target) return modulesreducedbmiflag or nil end +function get_modulesprecompilereducedbmiflag(target) + local modulesprecompilereducedbmiflag = _g.modulesprecompilereducedbmiflag + if modulesprecompilereducedbmiflag == nil then + local compinst = target:compiler("cxx") + local checkflags = "--precompile-reduced-bmi" + if target:has_tool("cxx", "clang_cl") then + -- clang_cl.has_flags() appends -c and treats unused-argument warnings as errors, + -- but --precompile-reduced-bmi does not use -c. Ignore that specific warning and + -- treat unknown-argument warnings as errors to reject unsupported flags. + checkflags = {checkflags, "-Wno-unused-command-line-argument", "-Werror=unknown-argument"} + end + if compinst:has_flags(checkflags, "cxxflags", {flagskey = "clang_modules_precompile_reduced_bmi", tryrun = true}) then + modulesprecompilereducedbmiflag = "--precompile-reduced-bmi" + end + _g.modulesprecompilereducedbmiflag = modulesprecompilereducedbmiflag or false + end + return modulesprecompilereducedbmiflag or nil +end + function has_clangscandepssupport(target) local support_clangscandeps = _g.support_clangscandeps if support_clangscandeps == nil then |