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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")
-- init it
function init(self)
-- init super
_super.init(self)
-- add cuflags
if not 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)
local maps =
{
none = "-O0"
, fast = "-O1"
, faster = "-O2"
, fastest = "-O3"
, smallest = "-Oz" -- smaller than -Os
, aggressive = "-Ofast"
}
return maps[level]
end
-- make the warning flag
function nf_warning(self, level)
local maps =
{
none = "-w"
, less = "-Wall"
, more = "-Wall"
, all = "-Wall"
, allextra = "-Wall -Wextra"
, 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:plat() == "windows" and level == "debug" then
return "-g"
end
else
return _super.nf_symbol(self, level)
end
end
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