Diff for /gforth/libcc.fs between versions 1.59 and 1.71

version 1.59, 2009/10/03 21:33:48 version 1.71, 2012/07/02 21:59:10
Line 1 Line 1
 \ libcc.fs      foreign function interface implemented using a C compiler  \ libcc.fs      foreign function interface implemented using a C compiler
   
 \ Copyright (C) 2006,2007,2008 Free Software Foundation, Inc.  \ Copyright (C) 2006,2007,2008,2009,2010,2011 Free Software Foundation, Inc.
   
 \ This file is part of Gforth.  \ This file is part of Gforth.
   
Line 64 Line 64
 \ wrapper again.  This is all done by loading the index file(s?),  \ wrapper again.  This is all done by loading the index file(s?),
 \ which define words for the wrappers in a separate wordlist.  \ which define words for the wrappers in a separate wordlist.
   
 \ The files are built in .../lib/gforth/$VERSION/libcc/ or  \ The files are built in .../lib/gforth$ARCH/$VERSION/libcc/ or
 \ ~/.gforth/libcc/$HOST/.  \ ~/.gforth$ARCH/libcc/$HOST/.
   
 \ other things to do:  
   
 \ c-variable forth-name c-name  
 \ c-constant forth-name c-name  
   
 \ Todo: conversion between function pointers and xts (both directions)  \ Todo: conversion between function pointers and xts (both directions)
   
Line 143  struct Line 138  struct
     cell% field cff-deferred \ xt of c-function deferred word      cell% field cff-deferred \ xt of c-function deferred word
     cell% field cff-lha \ address of the lib-handle for the lib that      cell% field cff-lha \ address of the lib-handle for the lib that
                         \ contains the wrapper function of the word                          \ contains the wrapper function of the word
       char% field cff-ctype  \ call type (function=1, value=0)
     char% field cff-rtype  \ return type      char% field cff-rtype  \ return type
     char% field cff-np     \ number of parameters      char% field cff-np     \ number of parameters
     1 0   field cff-ptypes \ #npar parameter types      1 0   field cff-ptypes \ #npar parameter types
Line 158  variable lib-handle-addr \ points to the Line 154  variable lib-handle-addr \ points to the
 2variable lib-filename   \ filename without extension  2variable lib-filename   \ filename without extension
 2variable lib-modulename \ basename of the file without extension  2variable lib-modulename \ basename of the file without extension
 2variable libcc-named-dir-v \ directory for named libcc wrapper libraries  2variable libcc-named-dir-v \ directory for named libcc wrapper libraries
 0 value libcc-path       \ pointer to path of library directories  Variable libcc-path      \ pointer to path of library directories
   
 defer replace-rpath ( c-addr1 u1 -- c-addr2 u2 )  defer replace-rpath ( c-addr1 u1 -- c-addr2 u2 )
 ' noop is replace-rpath  ' noop is replace-rpath
Line 251  variable c-prefix-lines-end c-prefix-lin Line 247  variable c-prefix-lines-end c-prefix-lin
 : print-c-prefix-lines ( -- )  : print-c-prefix-lines ( -- )
     c-prefix-lines @ ['] print-c-prefix-line list-map ;      c-prefix-lines @ ['] print-c-prefix-line list-map ;
   
 : save-c-prefix-line ( c-addr u -- )  : write-c-prefix-line ( c-addr u -- )
     c-source-file-id @ ?dup-if      c-source-file-id @ dup if
         >r 2dup r> write-line throw          write-line throw
     then      else
           drop 2drop
       then ;
   
   : save-c-prefix-line1 ( c-addr u -- )
       2dup write-c-prefix-line
     align here 0 , c-prefix-lines-end list-append ( c-addr u )      align here 0 , c-prefix-lines-end list-append ( c-addr u )
     longstring, ;      longstring, ;
   
   defer save-c-prefix-line ( c-addr u -- )
   ' save-c-prefix-line1 is save-c-prefix-line
   
 : \c ( "rest-of-line" -- ) \ gforth backslash-c  : \c ( "rest-of-line" -- ) \ gforth backslash-c
     \G One line of C declarations for the C interface      \G One line of C declarations for the C interface
     -1 parse save-c-prefix-line ;      -1 parse save-c-prefix-line ;
   
 s" #include <gforth/" version-string s+ s" /libcc.h>" append ( c-addr u )  s" #include <gforth" arch-modifier s+ s" /" s+ version-string s+ s" /libcc.h>" append ( c-addr u )
   2dup save-c-prefix-line drop free throw    2dup save-c-prefix-line drop free throw
   
 \ Types (for parsing)  \ Types (for parsing)
Line 284  drop Line 288  drop
   
 set-current  set-current
   
 : parse-libcc-type ( "libcc-type" -- u )  \ call types
     parse-name libcc-types search-wordlist 0= -13 and throw execute ;  0
   const+ c-func
   const+ c-val
   const+ c-var
   drop
   
 : parse-function-types ( "{libcc-type}" "--" "libcc-type" -- )  : libcc-type ( c-addr u -- u2 )
     here 2 chars allot here begin          libcc-types search-wordlist 0= -13 and throw execute ;
   
   : parse-libcc-type ( "libcc-type" -- u )  parse-name libcc-type ;
   
   : parse-return-type ( "libcc-type" -- u )
           parse-libcc-type dup 0< -32 and throw ;
   
   : parse-function-types ( "{libcc-type}" "--" "libcc-type" -- addr )
       c-func c, here
       dup 2 chars allot here begin
         parse-libcc-type dup 0>= while          parse-libcc-type dup 0>= while
             c,              c,
     repeat      repeat
     drop here swap - over char+ c!      drop here swap - over char+ c!
     parse-libcc-type dup 0< -32 and throw swap c! ;      parse-return-type swap c! ;
   
   : parse-value-type ( "{--}" "libcc-type" -- addr )
       c-val c, here
       parse-libcc-type  dup 0< if drop parse-return-type then
       c,  0 c, ;
   
   : parse-variable-type ( -- addr )
           c-var c, here
           s" a" libcc-type c,  0 c, ;
   
 : type-letter ( n -- c )  : type-letter ( n -- c )
     chars s" nadrfv" drop + c@ ;      chars s" nadrfv" drop + c@ ;
Line 365  create gen-par-types Line 391  create gen-par-types
   
 \ the call itself  \ the call itself
   
 : gen-wrapped-call { d: pars d: c-name fp-change1 sp-change1 -- }  : gen-wrapped-func { d: pars d: c-name fp-change1 sp-change1 -- }
     c-name type ." ("      c-name type ." ("
     fp-change1 sp-change1 pars over + swap u+do       fp-change1 sp-change1 pars over + swap u+do 
         i c@ gen-par          i c@ gen-par
Line 375  create gen-par-types Line 401  create gen-par-types
     loop      loop
     2drop ." )" ;      2drop ." )" ;
   
   : gen-wrapped-const { d: pars d: c-name fp-change1 sp-change1 -- }
           ." (" c-name type ." )" ;
   
   : gen-wrapped-var { d: pars d: c-name fp-change1 sp-change1 -- }
           ." &(" c-name type ." )" ;
   
   create gen-call-types
   ' gen-wrapped-func ,
   ' gen-wrapped-const ,
   ' gen-wrapped-var ,
   
   : gen-wrapped-call ( pars c-name fp-change1 sp-change1 -- )
           5 pick 3 chars - c@ cells gen-call-types + @ execute ;
   
 \ calls for various kinds of return values  \ calls for various kinds of return values
   
 : gen-wrapped-void ( pars c-name fp-change1 sp-change1 -- fp-change sp-change )  : gen-wrapped-void ( pars c-name fp-change1 sp-change1 -- fp-change sp-change )
Line 426  create gen-wrapped-types Line 466  create gen-wrapped-types
     \ addr points to the return type index of a c-function descriptor      \ addr points to the return type index of a c-function descriptor
     dup { descriptor }      dup { descriptor }
     count { ret } count 2dup { d: pars } chars + count { d: c-name }      count { ret } count 2dup { d: pars } chars + count { d: c-name }
     ." void " lib-modulename 2@ type ." _LTX_" descriptor wrapper-function-name 2dup type drop free throw      ." void "
       [ lib-suffix s" .la" str= [IF] ] lib-modulename 2@ type ." _LTX_" [ [THEN] ]
       descriptor wrapper-function-name 2dup type drop free throw
     .\" (GFORTH_ARGS)\n"      .\" (GFORTH_ARGS)\n"
     .\" {\n  Cell MAYBE_UNUSED *sp = gforth_SP;\n  Float MAYBE_UNUSED *fp = gforth_FP;\n  "      .\" {\n  Cell MAYBE_UNUSED *sp = gforth_SP;\n  Float MAYBE_UNUSED *fp = gforth_FP;\n  "
     pars c-name 2over count-stacks ret gen-wrapped-stmt .\" ;\n"      pars c-name 2over count-stacks ret gen-wrapped-stmt .\" ;\n"
Line 464  create gen-wrapped-types Line 506  create gen-wrapped-types
     libcc-named-dir-v 2@ ;      libcc-named-dir-v 2@ ;
   
 : libcc-tmp-dir ( -- c-addr u )  : libcc-tmp-dir ( -- c-addr u )
     s" ~/.gforth/libcc-tmp/" ;      s" ~/.gforth" arch-modifier s+ s" /libcc-tmp/" s+ ;
   
 : prepend-dirname ( c-addr1 u1 c-addr2 u2 -- c-addr3 u3 )  : prepend-dirname ( c-addr1 u1 c-addr2 u2 -- c-addr3 u3 )
     2over s+ 2swap drop free throw ;      2over s+ 2swap drop free throw ;
   
 : open-wrappers ( -- addr|0 )  : open-wrappers ( -- addr|0 )
     lib-filename 2@ s" .la" s+      lib-filename 2@ lib-suffix s+
     2dup libcc-named-dir string-prefix? if ( c-addr u )      2dup libcc-named-dir string-prefix? if ( c-addr u )
         \ see if we can open it in the path          \ see if we can open it in the path
         libcc-named-dir nip /string          libcc-named-dir nip /string
Line 486  create gen-wrapped-types Line 528  create gen-wrapped-types
     assert( c-source-file-id @ 0= )      assert( c-source-file-id @ 0= )
     { d: filename }      { d: filename }
     here 0 , lib-handle-addr ! filename lib-filename 2!      here 0 , lib-handle-addr ! filename lib-filename 2!
     filename basename lib-modulename 2! ;      filename basename lib-modulename 2!
       ['] write-c-prefix-line is save-c-prefix-line ;
         
 : c-library-name-create ( -- )  : c-library-name-create ( -- )
     lib-filename 2@ s" .c" s+ 2dup w/o create-file throw      lib-filename 2@ s" .c" s+ 2dup w/o create-file throw
     dup c-source-file-id !      c-source-file-id !
     ['] print-c-prefix-lines swap outfile-execute  
     drop free throw ;      drop free throw ;
   
 : c-named-library-name ( c-addr u -- )  : c-named-library-name ( c-addr u -- )
Line 503  create gen-wrapped-types Line 545  create gen-wrapped-types
     else      else
         libcc-named-dir $1ff mkdir-parents drop          libcc-named-dir $1ff mkdir-parents drop
         drop c-library-name-create          drop c-library-name-create
           c-prefix-lines @ ['] print-c-prefix-line \ first line only
           c-source-file-id @ outfile-execute
     endif ;      endif ;
   
 : c-tmp-library-name ( c-addr u -- )  : c-tmp-library-name ( c-addr u -- )
     \ set up filenames for a new library; c-addr u is the basename of      \ set up filenames for a new library; c-addr u is the basename of
     \ the library      \ the library
     libcc-tmp-dir 2dup $1ff mkdir-parents drop      libcc-tmp-dir 2dup $1ff mkdir-parents drop
     prepend-dirname c-library-name-setup c-library-name-create ;      prepend-dirname c-library-name-setup c-library-name-create
       ['] print-c-prefix-lines c-source-file-id @ outfile-execute ;
   
 : lib-handle ( -- addr )  : lib-handle ( -- addr )
     lib-handle-addr @ @ ;      lib-handle-addr @ @ ;
Line 551  DEFER compile-wrapper-function ( -- ) Line 596  DEFER compile-wrapper-function ( -- )
     lib-handle 0= if      lib-handle 0= if
         c-source-file close-file throw          c-source-file close-file throw
         0 c-source-file-id !          0 c-source-file-id !
         [ libtool-command s"  --silent --mode=compile " s+          [ libtool-command s"  --silent --tag=CC --mode=compile " s+
           libtool-cc append s"  -I '" append            libtool-cc append s"  -I '" append
           s" includedir" getenv append  s" '" append ] sliteral            s" includedir" getenv append  s" '" append ] sliteral
         s"  -O -c " s+ lib-filename 2@ append s" .c -o " append          s"  -O -c " s+ lib-filename 2@ append s" .c -o " append
         lib-filename 2@ append s" .lo" append ( c-addr u )          lib-filename 2@ append s" .lo" append ( c-addr u )
         \    2dup type cr          \    2dup type cr
         2dup system drop free throw $? abort" libtool compile failed"          2dup system drop free throw $? abort" libtool compile failed"
         [ libtool-command s"  --silent --mode=link " s+          [ libtool-command s"  --silent --tag=CC --mode=link " s+
           libtool-cc append libtool-flags append s"  -module -rpath " s+ ] sliteral            libtool-cc append libtool-flags append s"  -module -rpath " s+ ] sliteral
         lib-filename 2@ dirname replace-rpath s+ s"  " append          lib-filename 2@ dirname replace-rpath s+ s"  " append
         lib-filename 2@ append s" .lo -o " append          lib-filename 2@ append s" .lo -o " append
Line 583  DEFER compile-wrapper-function ( -- ) Line 628  DEFER compile-wrapper-function ( -- )
     endif      endif
     wrapper-name drop free throw ;      wrapper-name drop free throw ;
   
 : c-function-ft ( xt-defr xt-cfr "c-name" "{libcc-type}" "--" "libcc-type" -- )  : c-function-ft ( xt-defr xt-cfr xt-parse "c-name" "type signature" -- )
     \ build time/first time action for c-function      \ build time/first time action for c-function
     init-c-source-file      { xt-parse-types } init-c-source-file
     noname create 2, lib-handle-addr @ ,      noname create 2, lib-handle-addr @ ,
     parse-name { d: c-name }      parse-name { d: c-name }
     here parse-function-types c-name string,      xt-parse-types execute c-name string,
     ['] gen-wrapper-function c-source-file-execute      ['] gen-wrapper-function c-source-file-execute
   does> ( ... -- ... )    does> ( ... -- ... )
     dup 2@ { xt-defer xt-cfr }      dup 2@ { xt-defer xt-cfr }
Line 606  DEFER compile-wrapper-function ( -- ) Line 651  DEFER compile-wrapper-function ( -- )
   does> ( ... -- ... )    does> ( ... -- ... )
     @ call-c ;      @ call-c ;
   
 : c-function ( "forth-name" "c-name" "@{type@}" "--" "type" -- ) \ gforth  : (c-function) ( xt-parse "forth-name" "c-name" "{stack effect}" -- )
       { xt-parse-types } defer lastxt dup c-function-rt
       lastxt xt-parse-types c-function-ft
       lastxt swap defer! ;
   
   : c-function ( "forth-name" "c-name" "@{type@}" "---" "type" -- ) \ gforth
     \G Define a Forth word @i{forth-name}.  @i{Forth-name} has the      \G Define a Forth word @i{forth-name}.  @i{Forth-name} has the
     \G specified stack effect and calls the C function @code{c-name}.      \G specified stack effect and calls the C function @code{c-name}.
     defer lastxt dup c-function-rt lastxt c-function-ft      ['] parse-function-types (c-function) ;
     lastxt swap defer! ;  
   : c-value ( "forth-name" "c-name" "---" "type" -- ) \ gforth
       \G Define a Forth word @i{forth-name}.  @i{Forth-name} has the
       \G specified stack effect and gives the C value of @code{c-name}.
       ['] parse-value-type (c-function) ;
   
   : c-variable ( "forth-name" "c-name" -- ) \ gforth
       \G Define a Forth word @i{forth-name}.  @i{Forth-name} returns the
       \G address of @code{c-name}.
       ['] parse-variable-type (c-function) ;
   
 : clear-libs ( -- ) \ gforth  : clear-libs ( -- ) \ gforth
 \G Clear the list of libs  \G Clear the list of libs
Line 635  clear-libs Line 694  clear-libs
   
 : end-c-library ( -- ) \ gforth  : end-c-library ( -- ) \ gforth
 \G Finish and (if necessary) build the latest C library interface.  \G Finish and (if necessary) build the latest C library interface.
       ['] save-c-prefix-line1 is save-c-prefix-line
     ['] compile-wrapper-function1 is compile-wrapper-function      ['] compile-wrapper-function1 is compile-wrapper-function
     compile-wrapper-function1 ;      compile-wrapper-function1 ;
   
 : init-libcc ( -- )  : init-libcc ( -- )
     s" ~/.gforth/libcc-named/" libcc-named-dir-v 2!      s" ~/.gforth" arch-modifier s+ s" /libcc-named/" s+ libcc-named-dir-v 2!
 [IFDEF] make-path  [IFDEF] $init
     make-path to libcc-path      libcc-path $init
     libcc-named-dir libcc-path also-path      libcc-named-dir libcc-path also-path
     [ s" libccdir" getenv ] sliteral libcc-path also-path      [ s" libccdir" getenv ] sliteral libcc-path also-path
 [THEN]  [THEN]

Removed from v.1.59  
changed lines
  Added in v.1.71


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