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--!A cross-platform build utility based on Lua
--
-- Licensed under the Apache License, Version 2.0 (the "License");
-- you may not use this file except in compliance with the License.
-- You may obtain a copy of the License at
--
-- http://www.apache.org/licenses/LICENSE-2.0
--
-- Unless required by applicable law or agreed to in writing, software
-- distributed under the License is distributed on an "AS IS" BASIS,
-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-- See the License for the specific language governing permissions and
-- limitations under the License.
--
-- Copyright (C) 2015-present, TBOOX Open Source Group.
--
-- @author ruki
-- @file clang.lua
--
-- inherit gcc
inherit("gcc")
import("core.language.language")
-- init it
function init(self)
-- init super
_super.init(self)
-- add cuflags
if not self:is_plat("windows", "mingw") then
self:add("shared.cuflags", "-fPIC")
end
-- suppress warning
self:add("cxflags", "-Qunused-arguments")
self:add("cuflags", "-Qunused-arguments")
self:add("mxflags", "-Qunused-arguments")
self:add("asflags", "-Qunused-arguments")
-- add cuda path
local cuda = get_config("cuda")
if cuda then
local cuda_path = "--cuda-path=" .. os.args(path.translate(cuda))
self:add("cuflags", cuda_path)
end
-- init flags map
self:set("mapflags",
{
-- warnings
["-W1"] = "-Wall"
, ["-W2"] = "-Wall"
, ["-W3"] = "-Wall"
, ["-W4"] = "-Wall -Wextra"
-- strip
, ["-s"] = "-s"
, ["-S"] = "-S"
-- rdc
, ["-rdc=true"] = "-fcuda-rdc"
, ["-rdc true"] = "-fcuda-rdc"
, ["--relocatable-device-code=true"] = "-fcuda-rdc"
, ["--relocatable-device-code true"] = "-fcuda-rdc"
, ["-rdc=false"] = ""
, ["-rdc false"] = ""
, ["--relocatable-device-code=false"] = ""
, ["--relocatable-device-code false"] = ""
})
end
-- make the fp-model flag
function nf_fpmodel(self, level)
local maps
if self:has_flags("-ffp-model=fast") then
maps =
{
precise = "-ffp-model=precise"
, fast = "-ffp-model=fast"
, strict = "-ffp-model=strict"
, except = "-ftrapping-math"
, noexcept = "-fno-trapping-math"
}
else
maps =
{
precise = "" -- default
, fast = "-ffast-math"
, strict = {"-frounding-math", "-ftrapping-math"}
, except = "-ftrapping-math"
, noexcept = "-fno-trapping-math"
}
end
return maps[level]
end
-- make the optimize flag
function nf_optimize(self, level)
-- only for source kind
local kind = self:kind()
if language.sourcekinds()[kind] then
local maps =
{
none = "-O0"
, fast = "-O1"
, faster = "-O2"
, fastest = "-O3"
, smallest = "-Oz" -- smaller than -Os
, aggressive = "-Ofast"
}
return maps[level]
end
end
-- make the warning flag
function nf_warning(self, level)
local maps = {
none = "-w"
, less = "-Wall"
, more = "-Wall"
, all = "-Wall"
, allextra = {"-Wall", "-Wextra"}
, extra = "-Wextra"
, pedantic = "-Wpedantic"
, everything = "-Weverything"
, error = "-Werror"
}
return maps[level]
end
-- make the symbol flag
function nf_symbol(self, level)
local kind = self:kind()
if kind == "ld" or kind == "sh" then
-- clang/windows need add `-g` to linker to generate pdb symbol file
if self:is_plat("windows") and level == "debug" then
return "-g"
end
else
return _super.nf_symbol(self, level)
end
end
-- make the exception flag
--
-- e.g.
-- set_exceptions("cxx")
-- set_exceptions("objc")
-- set_exceptions("no-cxx")
-- set_exceptions("no-objc")
-- set_exceptions("cxx", "objc")
function nf_exception(self, exp)
local maps = {
cxx = "-fcxx-exceptions",
["no-cxx"] = "-fno-cxx-exceptions",
objc = "-fobjc-exceptions",
["no-objc"] = "-fno-objc-exceptions"
}
local value = maps[exp]
if value then
return {exp:startswith("no-") and "-fno-exceptions" or "-fexceptions", value}
end
end
-- has -fms-runtime-lib?
function _has_ms_runtime_lib(self)
local has_ms_runtime_lib = _g._HAS_MS_RUNTIME_LIB
if has_ms_runtime_lib == nil then
if self:has_flags("-fms-runtime-lib=dll", "cxflags", {flagskey = "clang_ms_runtime_lib"}) then
has_ms_runtime_lib = true
end
has_ms_runtime_lib = has_ms_runtime_lib or false
_g._HAS_MS_RUNTIME_LIB = has_ms_runtime_lib
end
return has_ms_runtime_lib
end
-- make vs runtime flag
-- @see https://github.com/xmake-io/xmake/issues/3546
function nf_runtime(self, vs_runtime)
if self:is_plat("windows") and vs_runtime then
if not _has_ms_runtime_lib(self) then
if vs_runtime:startswith("MD") then
wprint("%s runtime is not available for the current Clang compiler.", vs_runtime)
end
return
end
local maps
local kind = self:kind()
if language.sourcekinds()[kind] then
maps = {
MT = "-fms-runtime-lib=static",
MTd = "-fms-runtime-lib=static_dbg",
MD = "-fms-runtime-lib=dll",
MDd = "-fms-runtime-lib=dll_dbg"
}
elseif kind == "ld" or kind == "sh" then
maps = {
MT = "-nostdlib",
MTd = "-nostdlib",
MD = "-nostdlib",
MDd = "-nostdlib"
}
end
return maps and maps[vs_runtime]
end
end
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