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                                 (source-info-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   (let* ((untruename (file-info-untruename file-info))
  34          (dir (and untruename (pathname-directory untruename))))
  35     #+sb-xc-host
  36     (let ((src (position "src" dir :test #'string=
  37                          :from-end t)))
  38       (if src
  39           (format nil "SYS:~{~:@(~A~);~}~:@(~A~).LISP"
  40                   (subseq dir src) (pathname-name untruename))
  41           ;; FIXME: just output/stuff-groveled-from-headers.lisp
  42           (namestring untruename)))
  43     #-sb-xc-host
  44     (if (and dir (eq (first dir) :absolute))
  45         (namestring untruename)
  46         (if name
  47             (namestring name)
  48             nil))))
  49
  50 #!+sb-source-locations
  51 (define-compiler-macro source-location (&environment env)
  52   #-sb-xc-host
  53   (unless (policy env (and (> space 1)
  54                            (> space debug)))
  55     (make-definition-source-location)))
  56
  57 (/show0 "/Processing source location thunks")
  58 #!+sb-source-locations
  59 (dolist (fun *source-location-thunks*)
  60   (/show0 ".")
  61   (funcall fun))
  62 ;; Unbind the symbol to ensure that we detect any attempts to add new
  63 ;; thunks after this.
  64 (makunbound '*source-location-thunks*)
  65 (/show0 "/Done with source location thunks")