src/code/common-os.lisp

   1 ;;;; OS interface functions for SBCL common to all target OSes
   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!SYS")
  13
  14 (defvar *software-version* nil)
  15
  16 (defvar *core-pathname* nil
  17   #!+sb-doc
  18   "The absolute pathname of the running SBCL core.")
  19
  20 (sb!alien:define-alien-variable ("posix_argv" *native-posix-argv*) (* (* char)))
  21 (sb!alien:define-alien-variable ("core_string" *native-core-string*) (* char))
  22
  23 ;;; if something ever needs to be done differently for one OS, then
  24 ;;; split out the different part into per-os functions.
  25 (defun os-cold-init-or-reinit ()
  26   (/show0 "setting *CORE-STRING*")
  27   (setf *core-string*
  28         (sb!alien:cast *native-core-string* sb!alien:c-string))
  29   (/show0 "setting *POSIX-ARGV*")
  30   (setf sb!ext:*posix-argv*
  31         (loop for i from 0
  32               for arg = (sb!alien:deref *native-posix-argv* i)
  33               until (sb!alien:null-alien arg)
  34               collect (sb!alien:cast arg sb!alien:c-string)))
  35   (/show0 "entering OS-COLD-INIT-OR-REINIT")
  36   (setf *software-version* nil)
  37   (/show0 "setting *DEFAULT-PATHNAME-DEFAULTS*")
  38   (setf *default-pathname-defaults*
  39         ;; (temporary value, so that #'NATIVE-PATHNAME won't blow up when
  40         ;; we call it below:)
  41         (make-trivial-default-pathname)
  42         *default-pathname-defaults*
  43         ;; (final value, constructed using #'NATIVE-PATHNAME:)
  44         (native-pathname (sb!unix:posix-getcwd/)))
  45   (/show0 "setting *CORE-PATHNAME*")
  46   (setf *core-pathname*
  47         (merge-pathnames (native-pathname *core-string*)))
  48   (/show0 "leaving OS-COLD-INIT-OR-REINIT"))