mdw@git.distorted.org.uk Git - clg/blob - tools/asdf-extensions.lisp

   1 (in-package :asdf)
   2
   3 (eval-when (:load-toplevel :compile-toplevel :execute)
   4   (use-package :pkg-config))
   5
   6 (export '(*search-library-path-on-reload* *dso-extension*
   7           *operation* *system* *component* library shared-object
   8           install-init-hook))
   9
  10 (defvar *dso-extension*
  11  #-(or darwin win32)"so" #+darwin"dylib" #+win32"dll")
  12
  13 (defvar *search-library-path-on-reload* t)
  14
  15
  16 ;;; Since Common Lisp implementations doesn't seem to agree on how to
  17 ;;; run init hooks, we have to add our own compatibility layer.
  18
  19 (defvar *init-hooks* ())
  20
  21 (defun install-init-hook (func &optional (only-once t))
  22   (if only-once
  23       (pushnew func *init-hooks*)
  24     (push func *init-hooks*)))
  25
  26 (defun run-init-hooks ()
  27   (mapcar #'funcall (reverse *init-hooks*)))
  28
  29 (pushnew 'run-init-hooks
  30   #+cmu ext:*after-save-initializations*
  31   #+sbcl sb-ext:*init-hooks*
  32   #+clisp custom:*init-hooks*)
  33
  34 (defvar *reload-shared-objects* ()
  35   "List of shared objects which should be reloaded from library search
  36   path in saved images.")
  37
  38 #?-(sbcl>= 1 0 22)
  39 (defvar *dont-save-shared-objects* ()
  40   "List of shared objects which should not be saved in images.")
  41
  42 (defun namestring-name (namestring)
  43   (let ((pos (position #\/ namestring :from-end t)))
  44     (if pos
  45         (subseq namestring (1+ pos))
  46       namestring)))
  47
  48 (defun load-shared-object (pathname &optional dont-save-p (reload-p dont-save-p))
  49   (let* ((namestring (ensure-namestring pathname)))
  50     #?(sbcl< 1 0 22)(sb-alien:load-shared-object namestring)
  51     #?(sbcl>= 1 0 22)
  52     (sb-alien:load-shared-object namestring :dont-save dont-save-p)
  53     #+cmu(ext:load-foreign namestring)
  54     #?(clisp< 2 45)(ffi::foreign-library namestring)
  55     #?(clisp>= 2 45)(ffi:open-foreign-library namestring)
  56     (when dont-save-p
  57       #?-(sbcl>= 1 0 22)
  58       (pushnew namestring *dont-save-shared-objects* :test #'string=)
  59       (when reload-p
  60         (pushnew (namestring-name namestring)
  61          *reload-shared-objects* :test #'string=)))))
  62
  63 #?(or (sbcl< 1 0 22) (featurep :cmu))
  64 (progn
  65   (defun remove-shared-objects ()
  66     (dolist (namestring *dont-save-shared-objects*)
  67       #+sbcl
  68       (setf sb-alien::*shared-objects*
  69        (remove namestring sb-alien::*shared-objects*
  70         :key #'sb-alien::shared-object-file
  71         :test #'string=))
  72       #+cmu
  73       (setf system::*global-table*
  74        (remove namestring system::*global-table*
  75         :key #'cdr :test #'string=))))
  76   (pushnew 'remove-shared-objects
  77    #+sbcl sb-ext:*save-hooks*
  78    #+cmu ext:*before-save-initializations*))
  79
  80 (defun reload-shared-objects ()
  81   (handler-bind (#+sbcl (style-warning #'muffle-warning))
  82     (dolist (namestring (reverse *reload-shared-objects*))
  83       (load-shared-object namestring))))
  84
  85 (install-init-hook 'reload-shared-objects)
  86
  87
  88
  89 ;;; The following code is more or less copied from sb-bsd-sockets.asd,
  90 ;;; but extended to allow flags to be set in a general way. The class
  91 ;;; has been renamed from unix-dso to shared-object as this code is no
  92 ;;; longer specific to unix
  93
  94 (defclass shared-object (module)
  95   ((ldflags :initform nil :initarg :ldflags)
  96    (search  :initform *search-library-path-on-reload* :initarg :search
  97             :reader search-library-path-on-reload)))
  98
  99 (defun ensure-namestring (pathname)
 100   (namestring
 101    (typecase pathname
 102      (logical-pathname (translate-logical-pathname pathname))
 103      (t pathname))))
 104
 105 (defmethod input-files ((operation compile-op) (dso shared-object))
 106   (mapcar #'component-pathname (module-components dso)))
 107
 108 (defmethod output-files ((operation compile-op) (dso shared-object))
 109   (let ((dir (component-pathname dso)))
 110     (list
 111      (make-pathname :type *dso-extension*
 112                     :name (component-name dso)
 113                     :directory (butlast (pathname-directory dir))
 114                     :defaults dir))))
 115
 116 (defmethod perform :after ((operation compile-op) (dso shared-object))
 117   (let ((output (first (output-files operation dso)))
 118         (inputs (mapcar #'ensure-namestring
 119                  (mapcan #'(lambda (c)
 120                              (output-files operation c))
 121                   (module-components dso)))))
 122     (unless (zerop
 123              (run-shell-command "gcc ~A -o ~S ~{~S~^ ~} ~{~A~^ ~}"
 124               #-(or darwin win32)"-shared"
 125               #+darwin "-bundle"
 126               #+win32
 127               (format nil "-shared -Wl,--out-implib,~S"
 128                (ensure-namestring
 129                 (make-pathname
 130                  :type "a"
 131                  :name (format nil "lib~Adll" (pathname-name output))
 132                  :defaults output)))
 133               (ensure-namestring output)
 134               inputs
 135               (slot-value dso 'ldflags)))
 136       (error 'operation-error :operation operation :component dso))))
 137
 138 (defmethod perform ((o load-op) (dso shared-object))
 139   (let ((co (make-instance 'compile-op)))
 140     (let ((pathname (car (output-files co dso))))
 141       (load-shared-object pathname (search-library-path-on-reload dso)))))
 142
 143
 144
 145 (defclass c-source-file (source-file)
 146   ((cflags :initform nil :initarg :cflags)
 147    (optimization :initform 2 :initarg :optimization)
 148    (definitions :initform nil :initarg :definitions)
 149    (include-paths :initform nil :initarg :include-paths)))
 150
 151
 152 (defmethod output-files ((op compile-op) (c c-source-file))
 153   (list (make-pathname :type "o" :defaults (component-pathname c))))
 154
 155 (defmethod component-pathname ((c c-source-file))
 156   (make-pathname :type "c" :name (component-name c)
 157                  :directory (pathname-directory (call-next-method))))
 158
 159 (defmethod perform ((op compile-op) (c c-source-file))
 160   (unless
 161       (= 0 (run-shell-command "gcc -Wall ~A~{ ~A~} -o ~S -c ~S"
 162             #-win32 "-fPIC"
 163             #+win32 "-DBUILD_DLL"
 164             (nconc
 165              (when (slot-value c 'optimization)
 166                (list (format nil "-O~A" (slot-value c 'optimization))))
 167              (loop
 168               for symbol in (slot-value c 'definitions)
 169               collect (format nil "-D~A" symbol))
 170              (loop
 171               for path in (slot-value c 'include-paths)
 172               collect (format nil "-I~A" path))
 173              (slot-value c 'cflags))
 174             (ensure-namestring (first (output-files op c)))
 175             (ensure-namestring (component-pathname c))))
 176     (error 'operation-error :operation op :component c)))
 177
 178
 179 (defmethod perform ((operation load-op) (c c-source-file))
 180   t)
 181
 182
 183 ;;; Shared libraries
 184
 185 (defclass library (component)
 186   ((libdir :initarg :libdir :initform nil)
 187    (libname :initarg :libname :initform nil)
 188    (search  :initform *search-library-path-on-reload* :initarg :search
 189             :reader search-library-path-on-reload)))
 190
 191
 192 (defun split-path (path)
 193   (when path
 194     (labels ((split (path)
 195                (unless (zerop (length path))
 196                  (let ((slash (position #\/ path)))
 197                    (if slash
 198                        (cons (subseq path 0 slash) (split (subseq path (1+ slash))))
 199                        (list path))))))
 200       (if (and (not (zerop (length path))) (char= (char path 0) #\/))
 201           (cons :absolute (split (subseq path 1)))
 202         (cons :relative (split path))))))
 203
 204
 205 (defmethod component-pathname ((lib library))
 206   (or
 207    (when (slot-value lib 'libname)
 208      (let ((filename (format nil "~A~A" (namestring (make-pathname :directory (split-path (slot-value lib 'libdir)))) (slot-value lib 'libname))))
 209        (when (probe-file filename)
 210          (pathname filename))))
 211
 212    (make-pathname
 213     :type *dso-extension*
 214     :name (or (slot-value lib 'libname) (component-name lib))
 215     :directory (split-path (slot-value lib 'libdir)))))
 216
 217
 218 (defvar *loaded-libraries* ())
 219
 220 (defmethod perform ((o load-op) (lib library))
 221   (load-shared-object (component-pathname lib)
 222    (search-library-path-on-reload lib))
 223   (pushnew lib *loaded-libraries*))
 224
 225 (defmethod perform ((operation operation) (lib library))
 226   nil)
 227
 228 (defmethod operation-done-p ((o load-op) (lib library))
 229   (find lib *loaded-libraries*))
 230
 231 (defmethod operation-done-p ((o operation) (lib library))
 232   t)
 233
 234
 235 ;;; Binding of dynamic variables during perform
 236
 237 (defvar *operation* nil)
 238 (defvar *system* nil)
 239 (defvar *component* nil)
 240
 241 (defmethod perform :around ((operation operation) (c component))
 242   (let ((*operation* operation)
 243         (*component* c)
 244         (*system* (component-system c)))
 245     (call-next-method)))