wasm平台下使用wasi工具链编译无法通过

[luciouskami]

    local toolchain = get_config("toolchain")
    if "emcc" == toolchain then
        add_ldflags({
            "-s EXPORTED_FUNCTIONS=['_client_main']", 
            "-s WASM=1", 
            "-s STANDALONE_WASM",
            "--no-entry",
            "-s ERROR_ON_UNDEFINED_SYMBOLS=0",
            "-s NODEJS_CATCH_EXIT=0", 
            "-s NODEJS_CATCH_REJECTION=0"}, {force =true}
        )
        elseif  "wasi" == toolchain then
            add_ldflags({
                "-Wl--no-entry",
                "-Wl--export=_main",
                "-Wl--export=_client_main",
                "-Wl--strip-all",
                "-Wl--allow-undefined"
               }
            )
    end

报错信息如下：

PS G:\MapProject\Repo2\CppMapTemplate> xmake -vD
[ 93%]: linking.release client.html
clang++ -o build\wasm\wasm32\release\client.html build\.objs\client\wasm\wasm32\release\MapFrameWork\src\1.common\config.cpp.o build\.objs\client\wasm\wasm32\release\MapFrameWork\src\1.common\timer.cpp.o build\.objs\client\wasm\wasm32\release\MapFrameWork\src\1.common\utils\json.cpp.o build\.objs\client\wasm\wasm32\release\MapFrameWork\src\3.client\async_timer.cpp.o build\.objs\client\wasm\wasm32\release\MapFrameWork\src\3.client\RmlUi\Core\Box.cpp.o build\.objs\client\wasm\wasm32\release\MapFrameWork\src\3.client\RmlUi\Core\Context.cpp.o build\.objs\client\wasm\wasm32\release\MapFrameWork\src\3.client\RmlUi\Core\Core.cpp.o build\.objs\client\wasm\wasm32\release\MapFrameWork\src\3.client\RmlUi\Core\Element.cpp.o build\.objs\client\wasm\wasm32\release\MapFrameWork\src\3.client\RmlUi\Core\ElementDocument.cpp.o build\.objs\client\wasm\wasm32\release\MapFrameWork\src\3.client\RmlUi\Core\Event.cpp.o build\.objs\client\wasm\wasm32\release\MapFrameWork\src\3.client\types\local_event.cpp.o build\.objs\client\wasm\wasm32\release\MapFrameWork\src\3.client\types\unit.cpp.o build\.objs\client\wasm\wasm32\release\MapFrameWork\3rd\fmt\src\fmt.cc.o build\.objs\client\wasm\wasm32\release\src\1.common\test_common.cpp.o build\.objs\client\wasm\wasm32\release\src\3.client\main.cpp.o build\.objs\client\wasm\wasm32\release\src\3.client\ui\console.cpp.o build\.objs\client\wasm\wasm32\release\src\3.client\ui\util.cpp.o --sysroot=nil\share\wasi-sysroot -s -Wl--no-entry -Wl--export=_main -Wl--export=_client_main -Wl--strip-all -Wl--allow-undefined -g0
[ 93%]: linking.release server.html
clang++ -o build\wasm\wasm32\release\server.html build\.objs\server\wasm\wasm32\release\MapFrameWork\src\1.common\config.cpp.o build\.objs\server\wasm\wasm32\release\MapFrameWork\src\1.common\timer.cpp.o build\.objs\server\wasm\wasm32\release\MapFrameWork\src\1.common\utils\json.cpp.o build\.objs\server\wasm\wasm32\release\MapFrameWork\src\2.server\jass\11api.cpp.o build\.objs\server\wasm\wasm32\release\MapFrameWork\src\2.server\jass\callback.cpp.o build\.objs\server\wasm\wasm32\release\MapFrameWork\src\2.server\jass\common.ai.cpp.o build\.objs\server\wasm\wasm32\release\MapFrameWork\src\2.server\jass\common.cpp.o build\.objs\server\wasm\wasm32\release\MapFrameWork\src\2.server\jass\dzapi.cpp.o build\.objs\server\wasm\wasm32\release\MapFrameWork\src\2.server\jass\japi.cpp.o build\.objs\server\wasm\wasm32\release\MapFrameWork\src\2.server\types\event\sync_event.cpp.o build\.objs\server\wasm\wasm32\release\MapFrameWork\src\2.server\types\event\war3_event.cpp.o build\.objs\server\wasm\wasm32\release\MapFrameWork\src\2.server\types\geometry\region.cpp.o build\.objs\server\wasm\wasm32\release\MapFrameWork\src\2.server\types\memory_log.cpp.o build\.objs\server\wasm\wasm32\release\MapFrameWork\src\2.server\types\model\doodad.cpp.o build\.objs\server\wasm\wasm32\release\MapFrameWork\src\2.server\types\model\effect.cpp.o build\.objs\server\wasm\wasm32\release\MapFrameWork\src\2.server\types\mover\mover.cpp.o build\.objs\server\wasm\wasm32\release\MapFrameWork\src\2.server\types\player\player.cpp.o build\.objs\server\wasm\wasm32\release\MapFrameWork\src\2.server\types\player\player_attribute.cpp.o build\.objs\server\wasm\wasm32\release\MapFrameWork\src\2.server\types\search\enum.cpp.o build\.objs\server\wasm\wasm32\release\MapFrameWork\src\2.server\types\search\selector.cpp.o build\.objs\server\wasm\wasm32\release\MapFrameWork\src\2.server\types\shared\prd_c.cpp.o build\.objs\server\wasm\wasm32\release\MapFrameWork\src\2.server\types\unit\unit.cpp.o build\.objs\server\wasm\wasm32\release\MapFrameWork\src\2.server\types\unit\unit_attack.cpp.o build\.objs\server\wasm\wasm32\release\MapFrameWork\src\2.server\types\unit\unit_attribute.cpp.o build\.objs\server\wasm\wasm32\release\MapFrameWork\src\2.server\types\unit\unit_buff.cpp.o build\.objs\server\wasm\wasm32\release\MapFrameWork\src\2.server\types\unit\unit_damage.cpp.o build\.objs\server\wasm\wasm32\release\MapFrameWork\src\2.server\types\unit\unit_effect.cpp.o build\.objs\server\wasm\wasm32\release\MapFrameWork\src\2.server\types\unit\unit_heal.cpp.o build\.objs\server\wasm\wasm32\release\MapFrameWork\src\2.server\types\unit\unit_mark.cpp.o build\.objs\server\wasm\wasm32\release\MapFrameWork\3rd\fmt\src\fmt.cc.o build\.objs\server\wasm\wasm32\release\src\1.common\test_common.cpp.o build\.objs\server\wasm\wasm32\release\src\2.server\ext\buff\晕眩.cpp.o build\.objs\server\wasm\wasm32\release\src\2.server\ext\player.cpp.o build\.objs\server\wasm\wasm32\release\src\2.server\ext\unit.cpp.o build\.objs\server\wasm\wasm32\release\src\2.server\main.cpp.o build\.objs\server\wasm\wasm32\release\src\2.server\map\init_map.cpp.o --sysroot=nil\share\wasi-sysroot -s -Wl--no-entry -Wl--export=main -Wl--export=_server_main -Wl--strip-all -Wl--allow-undefined -g0
clang++: warning: argument unused during compilation: '-s' [-Wunused-command-line-argument]
clang++: warning: argument unused during compilation: '-s' [-Wunused-command-line-argument]
LINK : 没有找到 build\wasm\wasm32\release\server.html 或上一个增量链接没有生成它；正在执行完全链接
LINK : fatal error LNK1561: 必须定义入口点
clang++: error: linker command failed with exit code 1561 (use -v to see invocation)
error: @programdir\modules\private\async\runjobs.lua:256: @programdir\actions\build\kinds\binary.lua:74: @programdir\core\sandbox\modules\os.lua:378: execv(clang++ -o build\wasm\wasm32\release\client.html build\.objs\client\wasm\wasm32\release\MapFrameWork\src\1.common\config.cpp.o build\.objs\client\wasm\wasm32\release\MapFrameWork\src\1.common\timer.cpp.o build\.objs\client\wasm\wasm32\release\MapFrameWork\src\1.common\utils\json.cpp.o build\.objs\client\wasm\wasm32\release\MapFrameWork\src\3.client\async_timer.cpp.o build\.objs\client\wasm\wasm32\release\MapFrameWork\src\3.client\RmlUi\Core\Box.cpp.o build\.objs\client\wasm\wasm32\release\MapFrameWork\src\3.client\RmlUi\Core\Context.cpp.o build\.objs\client\wasm\wasm32\release\MapFrameWork\src\3.client\RmlUi\Core\Core.cpp.o build\.objs\client\wasm\wasm32\release\MapFrameWork\src\3.client\RmlUi\Core\Element.cpp.o build\.objs\client\wasm\wasm32\release\MapFrameWork\src\3.client\RmlUi\Core\ElementDocument.cpp.o build\.objs\client\wasm\wasm32\release\MapFrameWork\src\3.client\RmlUi\Core\Event.cpp.o build\.objs\client\wasm\wasm32\release\MapFrameWork\src\3.client\types\local_event.cpp.o build\.objs\client\wasm\wasm32\release\MapFrameWork\src\3.client\types\unit.cpp.o build\.objs\client\wasm\wasm32\release\MapFrameWork\3rd\fmt\src\fmt.cc.o build\.objs\client\wasm\wasm32\release\src\1.common\test_common.cpp.o build\.objs\client\wasm\wasm32\release\src\3.client\main.cpp.o build\.objs\client\wasm\wasm32\release\src\3.client\ui\console.cpp.o build\.objs\client\wasm\wasm32\release\src\3.client\ui\util.cpp.o --sysroot=nil\share\wasi-sysroot -s -Wl--no-entry -Wl--export=_main -Wl--export=_client_main -Wl--strip-all -Wl--allow-undefined -g0) failed(1561)
stack traceback:
    [C]: in function 'error'
    [@programdir\core\base\os.lua:921]:
    [@programdir\core\sandbox\modules\os.lua:378]: in function 'execv'
    [@programdir\modules\core\tools\gcc.lua:475]:
    [C]: in function 'xpcall'
    [@programdir\core\base\utils.lua:280]:
    [@programdir\core\tool\linker.lua:224]: in function 'link'
    [@programdir\actions\build\kinds\binary.lua:74]: in function 'callback'
    [@programdir\modules\core\project\depend.lua:193]: in function 'on_changed'
    [@programdir\actions\build\kinds\binary.lua:55]: in function '_do_link_target'
    [@programdir\actions\build\kinds\binary.lua:102]:
    [@programdir\actions\build\kinds\binary.lua:129]: in function '_link_target'
    [@programdir\actions\build\kinds\binary.lua:157]: in function 'jobfunc'
    [@programdir\modules\private\async\runjobs.lua:232]:
    [C]: in function 'xpcall'
    [@programdir\core\base\utils.lua:280]: in function 'trycall'
    [@programdir\core\sandbox\modules\try.lua:117]: in function 'try'
    [@programdir\modules\private\async\runjobs.lua:218]: in function 'cotask'
    [@programdir\core\base\scheduler.lua:404]:

stack traceback:
        [C]: in function 'error'
        @programdir\core\base\os.lua:921: in function 'os.raiselevel'
        (...tail calls...)
        @programdir\modules\private\async\runjobs.lua:256: in field 'catch'
        @programdir\core\sandbox\modules\try.lua:123: in global 'try'
        @programdir\modules\private\async\runjobs.lua:218: in upvalue 'cotask'
        @programdir\core\base\scheduler.lua:404: in function <@programdir\core\base\scheduler.lua:397>

我想问一下xmake如何找到wasi工具链？因为我用最新的wasi sdk 20手动编译他是不会报错的。