Function LoadTarget

compileopts/target.go:192–231

Load a target specification.

(options *Options)

// Load a target specification.
func LoadTarget(options *Options) (*TargetSpec, error) {
	if options.Target == "" && options.GOARCH == "wasm" {
		// Set a specific target if we're building from a known GOOS/GOARCH
		// combination that is defined in a target JSON file.
		switch options.GOOS {
		case "js":
			options.Target = "wasm"
		case "wasip1":
			options.Target = "wasip1"
		case "wasip2":
			options.Target = "wasip2"
		default:
			return nil, errors.New("GOARCH=wasm but GOOS is not set correctly. Please set GOOS to js, wasip1, or wasip2.")
		}
	}

	if options.Target == "" {
		return defaultTarget(options)
	}

	// See whether there is a target specification for this target (e.g.
	// Arduino).
	spec := &TargetSpec{}
	err := spec.loadFromGivenStr(options.Target)
	if err != nil {
		return nil, err
	}
	// Successfully loaded this target from a built-in .json file. Make sure
	// it includes all parents as specified in the "inherits" key.
	err = spec.resolveInherits()
	if err != nil {
		return nil, fmt.Errorf("%s : %w", options.Target, err)
	}

	if spec.Scheduler == "asyncify" {
		spec.ExtraFiles = append(spec.ExtraFiles, "src/internal/task/task_asyncify_wasm.S")
	}

	return spec, nil
}

// GetTargetSpecs retrieves target specifications from the TINYGOROOT targets
// directory.  Only valid target JSON files are considered, and the function