src/code/source-location.lisp

   1 ;;;; Source location tracking.
   2
   3 ;;;; This software is part of the SBCL system. See the README file for
   4 ;;;; more information.
   5 ;;;;
   6 ;;;; This software is derived from the CMU CL system, which was
   7 ;;;; written at Carnegie Mellon University and released into the
   8 ;;;; public domain. The software is in the public domain and is
   9 ;;;; provided with absolutely no warranty. See the COPYING and CREDITS
  10 ;;;; files for more information.
  11
  12 (in-package "SB!C")
  13
  14 (def!struct (definition-source-location
  15              (:make-load-form-fun sb!kernel:just-dump-it-normally))
  16   ;; Namestring of the source file that the definition was compiled from.
  17   ;; This is null if the definition was not compiled from a file.
  18   (namestring
  19    (when (and (boundp '*source-info*)
  20               *source-info*)
  21      (make-file-info-namestring *compile-file-pathname*
  22                                 (sb!c:get-toplevelish-file-info *source-info*)))
  23    :type (or string null))
  24   ;; Toplevel form index
  25   (toplevel-form-number
  26    (when (boundp '*current-path*)
  27      (source-path-tlf-number *current-path*))
  28    :type (or fixnum null))
  29   ;; plist from WITH-COMPILATION-UNIT
  30   (plist *source-plist*))
  31
  32 (defun make-file-info-namestring (name file-info)
  33   #+sb-xc-host (declare (ignore name))
  34   (let* ((untruename (file-info-untruename file-info))
  35          (dir (and untruename (pathname-directory untruename))))
  36     #+sb-xc-host
  37     (let ((src (position "src" dir :test #'string=
  38                          :from-end t)))
  39       (cond
  40         ((and src (not (string= (car (last dir)) "output")))
  41          (format nil "SYS:~{~:@(~A~);~}~:@(~A~).LISP"
  42                  (subseq dir src) (pathname-name untruename)))
  43         (t (aver (string-equal (car (last dir)) "output"))
  44            (aver (string-equal (pathname-name untruename) "stuff-groveled-from-headers"))
  45            (aver (string-equal (pathname-type untruename) "lisp"))
  46            "SYS:OUTPUT;STUFF-GROVELED-FROM-HEADERS.LISP")))
  47     #-sb-xc-host
  48     (if (and dir (eq (first dir) :absolute))
  49         (namestring untruename)
  50         (if name
  51             (namestring name)
  52             nil))))
  53
  54 #!+sb-source-locations
  55 (define-compiler-macro source-location (&environment env)
  56   (declare (ignore env))
  57   #-sb-xc-host (make-definition-source-location))
  58
  59 ;; We need a regular definition of SOURCE-LOCATION for calls processed
  60 ;; during LOAD on a source file while *EVALUATOR-MODE* is :INTERPRET.
  61 #!+sb-source-locations
  62 (setf (symbol-function 'source-location)
  63       (lambda () (make-definition-source-location)))
  64
  65 (/show0 "/Processing source location thunks")
  66 #!+sb-source-locations
  67 (dolist (fun *source-location-thunks*)
  68   (/show0 ".")
  69   (funcall fun))
  70 ;; Unbind the symbol to ensure that we detect any attempts to add new
  71 ;; thunks after this.
  72 (makunbound '*source-location-thunks*)
  73 (/show0 "/Done with source location thunks")