check flags for sdcc

1 files changed, 128 insertions, 0 deletions

diff --git a/xmake/modules/detect/tools/sdcc/has_flags.lua b/xmake/modules/detect/tools/sdcc/has_flags.lua
new file mode 100644
index 000000000..bd6175207
--- /dev/null
+++ b/xmake/modules/detect/tools/sdcc/has_flags.lua
@@ -0,0 +1,128 @@
+--!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) 2015-2020, TBOOX Open Source Group.
+--
+-- @author      ruki
+-- @file        has_flags.lua
+--
+
+-- imports
+import("lib.detect.cache")
+import("core.language.language")
+
+-- is linker?
+function _islinker(flags, opt)
+  
+    -- the flags is "-Wl,<arg>"?
+    local flags_str = table.concat(flags, " ")
+    if flags_str:startswith("-Wl,") then
+        return true
+    end
+
+    -- the tool kind is ld or sh?
+    local toolkind = opt.toolkind or ""
+    return toolkind == "ld" or toolkind == "sh"
+end
+
+-- try running 
+function _try_running(...)
+
+    local argv = {...}
+    local errors = nil
+    return try { function () os.runv(unpack(argv)); return true end, catch { function (errs) errors = (errs or ""):trim() end }}, errors
+end
+
+-- attempt to check it from the argument list
+function _check_from_arglist(flags, opt, islinker)
+
+    -- only for compiler
+    if islinker or #flags > 1 then
+        return 
+    end
+
+    -- make cache key
+    local key = "detect.tools.sdcc.has_flags"
+
+    -- make flags key
+    local flagskey = opt.program .. "_" .. (opt.programver or "")
+
+    -- load cache
+    local cacheinfo  = cache.load(key)
+
+    -- get all flags from argument list
+    local allflags = cacheinfo[flagskey]
+    if not allflags then
+
+        -- get argument list
+        allflags = {}
+        local arglist = os.iorunv(opt.program, {"--help"})
+        if arglist then
+            for arg in arglist:gmatch("%s+(%-[%-%a%d]+)%s+") do
+                allflags[arg] = true
+            end
+        end
+
+        -- save cache
+        cacheinfo[flagskey] = allflags
+        cache.save(key, cacheinfo)
+    end
+
+    -- ok?
+    return allflags[flags[1]]
+end
+
+-- try running to check flags
+function _check_try_running(flags, opt, islinker)
+
+    -- get extension
+    -- @note we need detect extension for ndk/clang++.exe: warning: treating 'c' input as 'c++' when in C++ mode, this behavior is deprecated [-Wdeprecated]
+    local extension = opt.program:endswith("++") and ".cpp" or (table.wrap(language.sourcekinds()[opt.toolkind or "cc"])[1] or ".c")
+
+    -- make an stub source file
+    local sourcefile = path.join(os.tmpdir(), "detect", "sdcc_has_flags" .. extension)
+    if not os.isfile(sourcefile) then
+        io.writefile(sourcefile, "int main(int argc, char** argv)\n{return 0;}")
+    end
+
+    -- check flags for linker
+    if islinker then
+        return _try_running(opt.program, table.join(flags, "-o", os.tmpfile(), sourcefile))
+    end
+
+    -- check flags for compiler
+    -- @note we cannot use os.nuldev() as the output file, maybe run failed for some flags, e.g. --coverage
+    return _try_running(opt.program, table.join(flags, "-S", "-o", os.tmpfile(), sourcefile))
+end
+
+-- has_flags(flags)?
+-- 
+-- @param opt   the argument options, e.g. {toolname = "", program = "", programver = "", toolkind = "[cc|cxx|ld|ar|sh|gc|mm|mxx]"}
+--
+-- @return      true or false
+--
+function main(flags, opt)
+
+    -- is linker?
+    local islinker = _islinker(flags, opt)
+
+    -- attempt to check it from the argument list
+    if _check_from_arglist(flags, opt, islinker) then
+        return true
+    end
+
+    -- try running to check it
+    return _check_try_running(flags, opt, islinker)
+end
+