improve to pass toolchain in tools.xmake #3774

xmake/core/tool/toolchain.lua

@@ -278,6 +278,11 @@ function _instance:check()
     return checkok
 end
 
+-- do load manually, it will call on_load()
+function _instance:load()
+    self:_load()
+end
+
 -- check cross toolchain
 function _instance:check_cross_toolchain()
     return sandbox_module.import("toolchains.cross.check", {rootdir = os.programdir(), anonymous = true})(self)
@@ -311,7 +316,15 @@ end
 
 -- save toolchain to file
 function _instance:savefile(filepath)
-    return io.save(filepath, {name = self:name(), info = self:info():info(), cachekey = self:cachekey(), configs = self._CONFIGS})
+    if not self:_is_loaded() then
+        os.raise("we can only save toolchain(%s) after it has been loaded!", self:name())
+    end
+    -- we strip on_load/on_check scripts to solve some issues
+    -- @see https://github.com/xmake-io/xmake/issues/3774
+    local info = table.clone(self:info():info())
+    info.load = nil
+    info.check = nil
+    return io.save(filepath, {name = self:name(), info = info, cachekey = self:cachekey(), configs = self._CONFIGS})
 end
 
 -- on check (builtin)
@@ -349,6 +362,11 @@ function _instance:_load()
     end
 end
 
+-- is loaded?
+function _instance:_is_loaded()
+    return self:info():get("__loaded")
+end
+
 -- get the tool description from the tool kind
 function _instance:_description(toolkind)
     local descriptions = self._DESCRIPTIONS

xmake/modules/package/tools/xmake.lua

@@ -241,14 +241,19 @@ function _get_package_toolchains_envs(package, opt)
 
         -- pass custom toolchains definition in project
         for _, toolchain_inst in ipairs(toolchains_custom) do
-            local toolchains_file = os.tmpfile()
-            dprint("passing toolchain(%s) to %s", toolchain_inst:name(), toolchains_file)
-            local ok, errors = toolchain_inst:savefile(toolchains_file)
-            if not ok then
-                raise("save toolchain failed, %s", errors or "unknown")
+            -- we must load it first
+            -- @see https://github.com/xmake-io/xmake/issues/3774
+            if toolchain_inst:check() then
+                toolchain_inst:load()
+                local toolchains_file = os.tmpfile()
+                dprint("passing toolchain(%s) to %s", toolchain_inst:name(), toolchains_file)
+                local ok, errors = toolchain_inst:savefile(toolchains_file)
+                if not ok then
+                    raise("save toolchain failed, %s", errors or "unknown")
+                end
+                envs.XMAKE_TOOLCHAIN_DATAFILES = envs.XMAKE_TOOLCHAIN_DATAFILES or {}
+                table.insert(envs.XMAKE_TOOLCHAIN_DATAFILES, toolchains_file)
             end
-            envs.XMAKE_TOOLCHAIN_DATAFILES = envs.XMAKE_TOOLCHAIN_DATAFILES or {}
-            table.insert(envs.XMAKE_TOOLCHAIN_DATAFILES, toolchains_file)
         end
     end
     return envs