version 1.61, 2009/10/18 17:52:50
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version 1.75, 2012/08/16 20:08:13
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\ libcc.fs foreign function interface implemented using a C compiler |
\ libcc.fs foreign function interface implemented using a C compiler |
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\ Copyright (C) 2006,2007,2008 Free Software Foundation, Inc. |
\ Copyright (C) 2006,2007,2008,2009,2010,2011 Free Software Foundation, Inc. |
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\ This file is part of Gforth. |
\ This file is part of Gforth. |
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Line 64
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\ 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. |
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\ 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/. |
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\ other things to do: |
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\ c-variable forth-name c-name |
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\ c-constant forth-name c-name |
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\ Todo: conversion between function pointers and xts (both directions) |
\ Todo: conversion between function pointers and xts (both directions) |
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Line 143 struct
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Line 138 struct
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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 |
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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
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Line 154 variable lib-handle-addr \ points to the
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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 |
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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 221 end-struct list%
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Line 217 end-struct list%
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2variable c-libs \ library names in a string (without "lib") |
2variable c-libs \ library names in a string (without "lib") |
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: lib-prefix ( -- addr u ) s" libgf" ; |
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: add-lib ( c-addr u -- ) \ gforth |
: add-lib ( c-addr u -- ) \ gforth |
\G Add library lib@i{string} to the list of libraries, where |
\G Add library lib@i{string} to the list of libraries, where |
\G @i{string} is represented by @i{c-addr u}. |
\G @i{string} is represented by @i{c-addr u}. |
Line 270 defer save-c-prefix-line ( c-addr u -- )
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Line 268 defer save-c-prefix-line ( c-addr u -- )
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\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 ; |
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s" #include <gforth/" version-string s+ s" /libcc.h>" append ( c-addr u ) |
s" #include <gforth" arch-modifier s+ s" /" append version-string append s" /libcc.h>" append ( c-addr u ) |
2dup save-c-prefix-line drop free throw |
2dup save-c-prefix-line drop free throw |
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\ Types (for parsing) |
\ Types (for parsing) |
Line 292 drop
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Line 290 drop
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set-current |
set-current |
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: parse-libcc-type ( "libcc-type" -- u ) |
\ call types |
parse-name libcc-types search-wordlist 0= -13 and throw execute ; |
0 |
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const+ c-func |
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const+ c-val |
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const+ c-var |
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drop |
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: libcc-type ( c-addr u -- u2 ) |
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libcc-types search-wordlist 0= -13 and throw execute ; |
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: parse-libcc-type ( "libcc-type" -- u ) parse-name libcc-type ; |
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: parse-function-types ( "{libcc-type}" "--" "libcc-type" -- ) |
: parse-return-type ( "libcc-type" -- u ) |
here 2 chars allot here begin |
parse-libcc-type dup 0< -32 and throw ; |
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: parse-function-types ( "{libcc-type}" "--" "libcc-type" -- addr ) |
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c-func c, here |
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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! ; |
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: parse-value-type ( "{--}" "libcc-type" -- addr ) |
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c-val c, here |
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parse-libcc-type dup 0< if drop parse-return-type then |
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c, 0 c, ; |
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: parse-variable-type ( -- addr ) |
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c-var c, here |
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s" a" libcc-type c, 0 c, ; |
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0 Value is-funptr? |
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: parse-funptr-types ( "{libcc-type}" "--" "libcc-type" -- addr ) |
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true to is-funptr? parse-function-types ; |
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: type-letter ( n -- c ) |
: type-letter ( n -- c ) |
chars s" nadrfv" drop + c@ ; |
chars s" nadrfv" drop + c@ ; |
Line 373 create gen-par-types
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Line 397 create gen-par-types
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\ the call itself |
\ the call itself |
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: 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 383 create gen-par-types
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Line 407 create gen-par-types
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loop |
loop |
2drop ." )" ; |
2drop ." )" ; |
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: gen-wrapped-const { d: pars d: c-name fp-change1 sp-change1 -- } |
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." (" c-name type ." )" ; |
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: gen-wrapped-var { d: pars d: c-name fp-change1 sp-change1 -- } |
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." &(" c-name type ." )" ; |
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create gen-call-types |
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' gen-wrapped-func , |
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' gen-wrapped-const , |
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' gen-wrapped-var , |
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: gen-wrapped-call ( pars c-name fp-change1 sp-change1 -- ) |
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5 pick 3 chars - c@ cells gen-call-types + @ execute ; |
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\ calls for various kinds of return values |
\ calls for various kinds of return values |
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: 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 434 create gen-wrapped-types
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Line 472 create gen-wrapped-types
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\ 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 " |
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[ lib-suffix s" .la" str= [IF] ] lib-prefix type lib-modulename 2@ type ." _LTX_" [ [THEN] ] |
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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 " |
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is-funptr? IF .\" Cell ptr = *gforth_SP++;\n" 0 to is-funptr? THEN |
pars c-name 2over count-stacks ret gen-wrapped-stmt .\" ;\n" |
pars c-name 2over count-stacks ret gen-wrapped-stmt .\" ;\n" |
?dup-if |
?dup-if |
." gforth_SP = sp+" .nb .\" ;\n" |
." gforth_SP = sp+" .nb .\" ;\n" |
Line 472 create gen-wrapped-types
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Line 513 create gen-wrapped-types
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libcc-named-dir-v 2@ ; |
libcc-named-dir-v 2@ ; |
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: 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+ ; |
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: 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 ; |
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: open-wrappers ( -- addr|0 ) |
: open-wrappers ( -- addr|0 ) |
lib-filename 2@ s" .la" s+ |
lib-filename 2@ dirname lib-prefix s+ |
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lib-filename 2@ basename append lib-suffix append |
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 562 DEFER compile-wrapper-function ( -- )
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Line 604 DEFER compile-wrapper-function ( -- )
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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 |
lib-filename 2@ append s" .la" append ( c-addr u ) |
lib-filename 2@ dirname append lib-prefix append |
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lib-filename 2@ basename append s" .la" append ( c-addr u ) |
c-libs 2@ append |
c-libs 2@ append |
\ 2dup type cr |
\ 2dup type cr |
2dup system drop free throw $? abort" libtool link failed" |
2dup system drop free throw $? abort" libtool link failed" |
Line 594 DEFER compile-wrapper-function ( -- )
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Line 637 DEFER compile-wrapper-function ( -- )
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endif |
endif |
wrapper-name drop free throw ; |
wrapper-name drop free throw ; |
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: 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 617 DEFER compile-wrapper-function ( -- )
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Line 660 DEFER compile-wrapper-function ( -- )
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does> ( ... -- ... ) |
does> ( ... -- ... ) |
@ call-c ; |
@ call-c ; |
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: c-function ( "forth-name" "c-name" "@{type@}" "--" "type" -- ) \ gforth |
: (c-function) ( xt-parse "forth-name" "c-name" "{stack effect}" -- ) |
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{ xt-parse-types } defer lastxt dup c-function-rt |
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lastxt xt-parse-types c-function-ft |
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lastxt swap defer! ; |
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: 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! ; |
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: c-value ( "forth-name" "c-name" "---" "type" -- ) \ gforth |
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\G Define a Forth word @i{forth-name}. @i{Forth-name} has the |
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\G specified stack effect and gives the C value of @code{c-name}. |
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['] parse-value-type (c-function) ; |
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: c-variable ( "forth-name" "c-name" -- ) \ gforth |
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\G Define a Forth word @i{forth-name}. @i{Forth-name} returns the |
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\G address of @code{c-name}. |
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['] parse-variable-type (c-function) ; |
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: c-funptr ( "forth-name" "c-typecast" "@{type@}" "---" "type" -- ) \ gforth |
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\G Define a Forth word @i{forth-name}. @i{Forth-name} has the |
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\G specified stack effect and calls the C function pointer |
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\G ptr using the typecast or struct access @code{c-typecast}. |
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['] parse-funptr-types (c-function) ; |
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: clear-libs ( -- ) \ gforth |
: clear-libs ( -- ) \ gforth |
\G Clear the list of libs |
\G Clear the list of libs |
Line 651 clear-libs
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Line 714 clear-libs
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compile-wrapper-function1 ; |
compile-wrapper-function1 ; |
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: 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] |