(in-package :asdf)
-(export '*dso-extension*)
+(eval-when (:load-toplevel :compile-toplevel :execute)
+ (use-package :pkg-config))
-(defparameter *dso-extension*
+(export '(*search-library-path-on-reload* *dso-extension*
+ *operation* *system* *component* library shared-object
+ install-init-hook))
+
+(defvar *dso-extension*
#-(or darwin win32)"so" #+darwin"dylib" #+win32"dll")
+(defvar *search-library-path-on-reload* t)
+
+
+;;; Since Common Lisp implementations doesn't seem to agree on how to
+;;; run init hooks, we have to add our own compatibility layer.
+
+(defvar *init-hooks* ())
+
+(defun install-init-hook (func &optional (only-once t))
+ (if only-once
+ (pushnew func *init-hooks*)
+ (push func *init-hooks*)))
+
+(defun run-init-hooks ()
+ (mapcar #'funcall (reverse *init-hooks*)))
+
+(pushnew 'run-init-hooks
+ #+cmu ext:*after-save-initializations*
+ #+sbcl sb-ext:*init-hooks*
+ #+clisp custom:*init-hooks*)
+
+(defvar *reload-shared-objects* ()
+ "List of shared objects which should be reloaded from library search
+ path in saved images.")
+
+#?-(sbcl>= 1 0 22)
+(defvar *dont-save-shared-objects* ()
+ "List of shared objects which should not be saved in images.")
+
+(defun namestring-name (namestring)
+ (let ((pos (position #\/ namestring :from-end t)))
+ (if pos
+ (subseq namestring (1+ pos))
+ namestring)))
+
+(defun load-shared-object (pathname &optional dont-save-p (reload-p dont-save-p))
+ (let* ((namestring (ensure-namestring pathname)))
+ #?(sbcl< 1 0 22)(sb-alien:load-shared-object namestring)
+ #?(sbcl>= 1 0 22)
+ (sb-alien:load-shared-object namestring :dont-save dont-save-p)
+ #+cmu(ext:load-foreign namestring)
+ #?(clisp< 2 45)(ffi::foreign-library namestring)
+ #?(clisp>= 2 45)(ffi:open-foreign-library namestring)
+ (when dont-save-p
+ #?-(sbcl>= 1 0 22)
+ (pushnew namestring *dont-save-shared-objects* :test #'string=)
+ (when reload-p
+ (pushnew (namestring-name namestring)
+ *reload-shared-objects* :test #'string=)))))
+
+#?(or (sbcl< 1 0 22) (featurep :cmu))
+(progn
+ (defun remove-shared-objects ()
+ (dolist (namestring *dont-save-shared-objects*)
+ #+sbcl
+ (setf sb-alien::*shared-objects*
+ (remove namestring sb-alien::*shared-objects*
+ :key #'sb-alien::shared-object-file
+ :test #'string=))
+ #+cmu
+ (setf system::*global-table*
+ (remove namestring system::*global-table*
+ :key #'cdr :test #'string=))))
+ (pushnew 'remove-shared-objects
+ #+sbcl sb-ext:*save-hooks*
+ #+cmu ext:*before-save-initializations*))
+
+(defun reload-shared-objects ()
+ (handler-bind (#+sbcl (style-warning #'muffle-warning))
+ (dolist (namestring (reverse *reload-shared-objects*))
+ (load-shared-object namestring))))
+
+(install-init-hook 'reload-shared-objects)
+
+
;;; The following code is more or less copied from sb-bsd-sockets.asd,
;;; but extended to allow flags to be set in a general way. The class
-;;; has been renamed from unix-dso to shared-object as this code no
-;;; longer is unix specific
+;;; has been renamed from unix-dso to shared-object as this code is no
+;;; longer specific to unix
(defclass shared-object (module)
- ((ldflags :initform nil :initarg :ldflags)))
-
-;; For backwards compatibility
-(defclass unix-dso (shared-object)
- ())
+ ((ldflags :initform nil :initarg :ldflags)
+ (search :initform *search-library-path-on-reload* :initarg :search
+ :reader search-library-path-on-reload)))
(defun ensure-namestring (pathname)
(namestring
(slot-value dso 'ldflags)))
(error 'operation-error :operation operation :component dso))))
-#+clisp
-(defvar *loaded-libraries* ())
-
-(defun load-shared-object (pathname)
- (let ((namestring (ensure-namestring pathname)))
- #+sbcl(sb-alien:load-shared-object namestring)
- #+cmu(ext:load-foreign namestring)
- #+clisp
- (unless (find namestring *loaded-libraries* :test #'equal)
- (ffi::foreign-library namestring)
- (push namestring *loaded-libraries*))))
-
-
-(defmethod perform ((o load-op) (c shared-object))
+(defmethod perform ((o load-op) (dso shared-object))
(let ((co (make-instance 'compile-op)))
- (let ((pathname (car (output-files co c))))
- (load-shared-object pathname))))
+ (let ((pathname (car (output-files co dso))))
+ (load-shared-object pathname (search-library-path-on-reload dso)))))
(defmethod perform ((op compile-op) (c c-source-file))
(unless
- (= 0 (run-shell-command "gcc ~A~{ ~A~} -o ~S -c ~S"
+ (= 0 (run-shell-command "gcc -Wall ~A~{ ~A~} -o ~S -c ~S"
#-win32 "-fPIC"
#+win32 "-DBUILD_DLL"
(nconc
(defclass library (component)
((libdir :initarg :libdir :initform nil)
- (libname :initarg :libname :initform nil)))
+ (libname :initarg :libname :initform nil)
+ (search :initform *search-library-path-on-reload* :initarg :search
+ :reader search-library-path-on-reload)))
(defun split-path (path)
- (labels ((split (path)
- (unless (zerop (length path))
- (let ((slash (position #\/ path)))
- (if slash
- (cons (subseq path 0 slash) (split (subseq path (1+ slash))))
- (list path))))))
- (if (and (not (zerop (length path))) (char= (char path 0) #\/))
- (cons :absolute (split (subseq path 1)))
- (cons :relative (split path)))))
-
+ (when path
+ (labels ((split (path)
+ (unless (zerop (length path))
+ (let ((slash (position #\/ path)))
+ (if slash
+ (cons (subseq path 0 slash) (split (subseq path (1+ slash))))
+ (list path))))))
+ (if (and (not (zerop (length path))) (char= (char path 0) #\/))
+ (cons :absolute (split (subseq path 1)))
+ (cons :relative (split path))))))
+
(defmethod component-pathname ((lib library))
- (make-pathname :type *dso-extension*
- :name (or (slot-value lib 'libname) (component-name lib))
- :directory (split-path (slot-value lib 'libdir))))
+ (or
+ (when (slot-value lib 'libname)
+ (let ((filename (format nil "~A~A" (namestring (make-pathname :directory (split-path (slot-value lib 'libdir)))) (slot-value lib 'libname))))
+ (when (probe-file filename)
+ (pathname filename))))
+
+ (make-pathname
+ :type *dso-extension*
+ :name (or (slot-value lib 'libname) (component-name lib))
+ :directory (split-path (slot-value lib 'libdir)))))
-(defmethod perform ((o load-op) (c library))
- (load-shared-object (component-pathname c)))
-(defmethod perform ((operation operation) (c library))
+(defvar *loaded-libraries* ())
+
+(defmethod perform ((o load-op) (lib library))
+ (load-shared-object (component-pathname lib)
+ (search-library-path-on-reload lib))
+ (pushnew lib *loaded-libraries*))
+
+(defmethod perform ((operation operation) (lib library))
nil)
-(defmethod operation-done-p ((o load-op) (c library))
- (let ((namestring (ensure-namestring (component-pathname c))))
- #+sbcl(find namestring sb-alien::*shared-objects* :key #'sb-alien::shared-object-file :test #'equal)
- #+cmu(rassoc namestring system::*global-table* :test #'equal)
- #+clisp(find namestring *loaded-libraries* :test #'equal)))
+(defmethod operation-done-p ((o load-op) (lib library))
+ (find lib *loaded-libraries*))
-(defmethod operation-done-p ((o operation) (c library))
+(defmethod operation-done-p ((o operation) (lib library))
t)
+
+
+;;; Binding of dynamic variables during perform
+
+(defvar *operation* nil)
+(defvar *system* nil)
+(defvar *component* nil)
+
+(defmethod perform :around ((operation operation) (c component))
+ (let ((*operation* operation)
+ (*component* c)
+ (*system* (component-system c)))
+ (call-next-method)))