src/cold/defun-load-or-cload-xcompiler.lisp

   1 ;;;; This software is part of the SBCL system. See the README file for
   2 ;;;; more information.
   3 ;;;;
   4 ;;;; This software is derived from the CMU CL system, which was
   5 ;;;; written at Carnegie Mellon University and released into the
   6 ;;;; public domain. The software is in the public domain and is
   7 ;;;; provided with absolutely no warranty. See the COPYING and CREDITS
   8 ;;;; files for more information.
   9
  10 (in-package "SB-COLD")
  11
  12 ;;; Either load or compile-then-load the cross-compiler into the
  13 ;;; cross-compilation host Common Lisp.
  14 (defun load-or-cload-xcompiler (load-or-cload-stem)
  15
  16   ;; The running-in-the-host-Lisp Python cross-compiler defines its
  17   ;; own versions of a number of functions which should not overwrite
  18   ;; host-Lisp functions. Instead we put them in a special package.
  19   ;;
  20   ;; The common theme of the functions, macros, constants, and so
  21   ;; forth in this package is that they run in the host and affect the
  22   ;; compilation of the target.
  23   (let ((package-name "SB-XC"))
  24     (make-package package-name :use nil :nicknames nil)
  25     (dolist (name '(;; the constants (except for T and NIL which have
  26                     ;; a specially hacked correspondence between
  27                     ;; cross-compilation host Lisp and target Lisp)
  28                     "ARRAY-DIMENSION-LIMIT"
  29                     "ARRAY-RANK-LIMIT"
  30                     "ARRAY-TOTAL-SIZE-LIMIT"
  31                     "BOOLE-1"
  32                     "BOOLE-2"
  33                     "BOOLE-AND"
  34                     "BOOLE-ANDC1"
  35                     "BOOLE-ANDC2"
  36                     "BOOLE-C1"
  37                     "BOOLE-C2"
  38                     "BOOLE-CLR"
  39                     "BOOLE-EQV"
  40                     "BOOLE-IOR"
  41                     "BOOLE-NAND"
  42                     "BOOLE-NOR"
  43                     "BOOLE-ORC1"
  44                     "BOOLE-ORC2"
  45                     "BOOLE-SET"
  46                     "BOOLE-XOR"
  47                     "CALL-ARGUMENTS-LIMIT"
  48                     "CHAR-CODE-LIMIT"
  49                     "DOUBLE-FLOAT-EPSILON"
  50                     "DOUBLE-FLOAT-NEGATIVE-EPSILON"
  51                     "INTERNAL-TIME-UNITS-PER-SECOND"
  52                     "LAMBDA-LIST-KEYWORDS"
  53                     "LAMBDA-PARAMETERS-LIMIT"
  54                     "LEAST-NEGATIVE-DOUBLE-FLOAT"
  55                     "LEAST-NEGATIVE-LONG-FLOAT"
  56                     "LEAST-NEGATIVE-NORMALIZED-DOUBLE-FLOAT"
  57                     "LEAST-NEGATIVE-NORMALIZED-LONG-FLOAT"
  58                     "LEAST-NEGATIVE-NORMALIZED-SHORT-FLOAT"
  59                     "LEAST-NEGATIVE-NORMALIZED-SINGLE-FLOAT"
  60                     "LEAST-NEGATIVE-SHORT-FLOAT"
  61                     "LEAST-NEGATIVE-SINGLE-FLOAT"
  62                     "LEAST-POSITIVE-DOUBLE-FLOAT"
  63                     "LEAST-POSITIVE-LONG-FLOAT"
  64                     "LEAST-POSITIVE-NORMALIZED-DOUBLE-FLOAT"
  65                     "LEAST-POSITIVE-NORMALIZED-LONG-FLOAT"
  66                     "LEAST-POSITIVE-NORMALIZED-SHORT-FLOAT"
  67                     "LEAST-POSITIVE-NORMALIZED-SINGLE-FLOAT"
  68                     "LEAST-POSITIVE-SHORT-FLOAT"
  69                     "LEAST-POSITIVE-SINGLE-FLOAT"
  70                     "LONG-FLOAT-EPSILON"
  71                     "LONG-FLOAT-NEGATIVE-EPSILON"
  72                     "MOST-NEGATIVE-DOUBLE-FLOAT"
  73                     "MOST-NEGATIVE-FIXNUM"
  74                     "MOST-NEGATIVE-LONG-FLOAT"
  75                     "MOST-NEGATIVE-SHORT-FLOAT"
  76                     "MOST-NEGATIVE-SINGLE-FLOAT"
  77                     "MOST-POSITIVE-DOUBLE-FLOAT"
  78                     "MOST-POSITIVE-FIXNUM"
  79                     "MOST-POSITIVE-LONG-FLOAT"
  80                     "MOST-POSITIVE-SHORT-FLOAT"
  81                     "MOST-POSITIVE-SINGLE-FLOAT"
  82                     "MULTIPLE-VALUES-LIMIT"
  83                     "PI"
  84                     "SHORT-FLOAT-EPSILON"
  85                     "SHORT-FLOAT-NEGATIVE-EPSILON"
  86                     "SINGLE-FLOAT-EPSILON"
  87                     "SINGLE-FLOAT-NEGATIVE-EPSILON"
  88
  89                     ;; everything else which needs a separate
  90                     ;; existence in xc and target
  91                     "BUILT-IN-CLASS"
  92                     "CLASS" "CLASS-NAME" "CLASS-OF"
  93                     "COMPILE-FILE"
  94                     "COMPILE-FILE-PATHNAME"
  95                     "*COMPILE-FILE-PATHNAME*"
  96                     "*COMPILE-FILE-TRUENAME*"
  97                     "*COMPILE-PRINT*"
  98                     "*COMPILE-VERBOSE*"
  99                     "COMPILER-MACRO-FUNCTION"
 100                     "CONSTANTP"
 101                     "DEFCONSTANT"
 102                     "DEFINE-MODIFY-MACRO"
 103                     "DEFINE-SETF-EXPANDER"
 104                     "DEFMACRO" "DEFSETF" "DEFSTRUCT" "DEFTYPE"
 105                     "FBOUNDP" "FDEFINITION" "FMAKUNBOUND"
 106                     "FIND-CLASS"
 107                     "GET-SETF-EXPANSION"
 108                     "LISP-IMPLEMENTATION-TYPE" "LISP-IMPLEMENTATION-VERSION"
 109                     "MACRO-FUNCTION"
 110                     "MACROEXPAND" "MACROEXPAND-1" "*MACROEXPAND-HOOK*"
 111                     "MAKE-LOAD-FORM"
 112                     "MAKE-LOAD-FORM-SAVING-SLOTS"
 113                     "PACKAGE" "PACKAGEP"
 114                     "PROCLAIM"
 115                     "SPECIAL-OPERATOR-P"
 116                     "STANDARD-CLASS"
 117                     "STRUCTURE-CLASS"
 118                     "SUBTYPEP"
 119                     "TYPE-OF" "TYPEP"
 120                     "WITH-COMPILATION-UNIT"))
 121       (export (intern name package-name) package-name)))
 122
 123   ;; Build a version of Python to run in the host Common Lisp, to be
 124   ;; used only in cross-compilation.
 125   ;;
 126   ;; Note that files which are marked :ASSEM, to cause them to be
 127   ;; processed with SB!C:ASSEMBLE-FILE when we're running under the
 128   ;; cross-compiler or the target lisp, are still processed here, just
 129   ;; with the ordinary Lisp compiler, and this is intentional, in
 130   ;; order to make the compiler aware of the definitions of assembly
 131   ;; routines.
 132   (do-stems-and-flags (stem flags)
 133     (unless (find :not-host flags)
 134       (funcall load-or-cload-stem
 135                stem
 136                :ignore-failure-p (find :ignore-failure-p flags))
 137       #!+sb-show (warn-when-cl-snapshot-diff *cl-snapshot*)))
 138
 139   ;; If the cross-compilation host is SBCL itself, we can use the
 140   ;; PURIFY extension to freeze everything in place, reducing the
 141   ;; amount of work done on future GCs. In machines with limited
 142   ;; memory, this could help, by reducing the amount of memory which
 143   ;; needs to be juggled in a full GC. And it can hardly hurt, since
 144   ;; (in the ordinary build procedure anyway) essentially everything
 145   ;; which is reachable at this point will remain reachable for the
 146   ;; entire run.
 147   #+sbcl (sb-ext:purify)
 148
 149   (values))