(in-package :asdf)
+(export 'load-dso)
+
(defun concatenate-strings (strings &optional delimiter)
(if (not (rest strings))
(first strings)
(logical-pathname (translate-logical-pathname pathname))
(t pathname))))
-(defmethod asdf::input-files ((operation compile-op) (dso unix-dso))
+(defmethod input-files ((operation compile-op) (dso unix-dso))
(mapcar #'component-pathname (module-components dso)))
(defmethod output-files ((operation compile-op) (dso unix-dso))
(module-components dso)))))
(error 'operation-error :operation operation :component dso))))
+;; Taken from foreign.lisp in the CMUCL tree, but modified to delay
+;; resolving of symbols until they are used
+(defun load-dso (file)
+ (system::ensure-lisp-table-opened)
+ ; rtld global: so it can find all the symbols previously loaded
+ ; rtld lazy: that way dlopen will not fail if not all symbols are defined.
+ (let ((filename (namestring file)))
+ (format t ";;; Loading shared library ~A ...~%" filename)
+ (let ((sap (system::dlopen filename (logior system::rtld-lazy system::rtld-global))))
+ (cond ((zerop (system:sap-int sap))
+ (let ((err-string (system::dlerror)))
+
+ ;; For some reason dlerror always seems to return NIL,
+ ;; which isn't very informative.
+ (error "Can't open object ~S: ~S" file err-string)))
+ ((null (assoc sap system::*global-table* :test #'system:sap=))
+ (setf system::*global-table* (acons sap file system::*global-table*))
+ t)
+ (t nil)))))
+
+
(defmethod perform ((o load-op) (c unix-dso))
(let ((co (make-instance 'compile-op)))
(let ((filename (car (output-files co c))))
- #+cmu (ext:load-foreign filename)
- #+sbcl (sb-alien:load-shared-object filename))))
+ (load-dso filename))))
t)
+
+(defclass library (static-file)
+ ((libdir :initarg :libdir)))
+
+
+(defun relative-pathname (path)
+ (etypecase path
+ (cons path)
+ (string (if (char= #\/ (char path 0))
+ (subseq path 1)
+ path))))
+
+(defmethod component-pathname ((lib library))
+ (make-pathname :type "so"
+ :name (component-name lib)
+ :directory (relative-pathname (slot-value lib 'libdir))))
+
+(defmethod perform ((o load-op) (c library))
+ (load-dso (component-pathname c)))