version 1.28, 2007/12/31 18:40:24
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version 1.74, 2012/07/23 22:12:35
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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 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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\ 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 118
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\ first-time word, then to the run-time word; the run-time word calls |
\ first-time word, then to the run-time word; the run-time word calls |
\ the c function. |
\ the c function. |
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: delete-file 2drop 0 ; |
[ifundef] parse-name |
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' parse-word alias parse-name |
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[then] |
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[ifundef] defer! |
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: defer! ( xt xt-deferred -- ) \ gforth defer-store |
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\G Changes the @code{defer}red word @var{xt-deferred} to execute @var{xt}. |
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>body [ has? rom [IF] ] @ [ [THEN] ] ! ; |
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[then] |
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\ : delete-file 2drop 0 ; |
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require struct.fs |
require struct.fs |
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require mkdir.fs |
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\ counted-string |
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\ c-function-ft word body: |
\ c-function-ft word body: |
struct |
struct |
cell% field cff-cfr \ xt of c-function-rt word |
cell% field cff-cfr \ xt of c-function-rt word |
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 146 variable c-source-file-id \ contains the
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Line 150 variable c-source-file-id \ contains the
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variable lib-handle-addr \ points to the library handle of the current batch. |
variable lib-handle-addr \ points to the library handle of the current batch. |
\ the library handle is 0 if the current |
\ the library handle is 0 if the current |
\ batch is not yet compiled. |
\ batch is not yet compiled. |
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here 0 , lib-handle-addr ! \ just make sure LIB-HANDLE always works |
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 |
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2variable libcc-named-dir-v \ directory for named libcc wrapper libraries |
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Variable libcc-path \ pointer to path of library directories |
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defer replace-rpath ( c-addr1 u1 -- c-addr2 u2 ) |
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' noop is replace-rpath |
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: .nb ( n -- ) |
: .nb ( n -- ) |
0 .r ; |
0 .r ; |
Line 205 end-struct list%
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Line 215 end-struct list%
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node list-next @ |
node list-next @ |
repeat ; |
repeat ; |
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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 |
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\G Add library lib@i{string} to the list of libraries, where |
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\G @i{string} is represented by @i{c-addr u}. |
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c-libs 2@ d0= IF 0 allocate throw 0 c-libs 2! THEN |
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c-libs 2@ s" -l" append 2swap append c-libs 2! ; |
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: add-libpath ( c-addr u -- ) \ gforth |
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\G Add path @i{string} to the list of library search pathes, where |
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\G @i{string} is represented by @i{c-addr u}. |
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c-libs 2@ d0= IF 0 allocate throw 0 c-libs 2! THEN |
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c-libs 2@ s" -L" append 2swap append c-libs 2! ; |
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\ C prefix lines |
\ C prefix lines |
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\ linked list of longcstrings: [ link | count-cell | characters ] |
\ linked list of longcstrings: [ link | count-cell | characters ] |
Line 223 variable c-prefix-lines-end c-prefix-lin
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Line 249 variable c-prefix-lines-end c-prefix-lin
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: 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 ; |
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: 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 |
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drop 2drop |
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then ; |
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: save-c-prefix-line1 ( c-addr u -- ) |
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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, ; |
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defer save-c-prefix-line ( c-addr u -- ) |
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' save-c-prefix-line1 is save-c-prefix-line |
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: \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 ; |
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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 256 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-function-types ( "{libcc-type}" "--" "libcc-type" -- ) |
: parse-libcc-type ( "libcc-type" -- u ) parse-name libcc-type ; |
here 2 chars allot here begin |
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: parse-return-type ( "libcc-type" -- u ) |
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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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: type-letter ( n -- c ) |
: type-letter ( n -- c ) |
chars s" nadrfv" drop + c@ ; |
chars s" nadrfv" drop + c@ ; |
Line 337 create gen-par-types
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Line 393 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 347 create gen-par-types
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Line 403 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 363 create gen-par-types
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Line 433 create gen-par-types
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." ," gen-par-n ." ," gen-par-n ." )" ; |
." ," gen-par-n ." ," gen-par-n ." )" ; |
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: gen-wrapped-r ( pars c-name fp-change1 sp-change1 -- fp-change sp-change ) |
: gen-wrapped-r ( pars c-name fp-change1 sp-change1 -- fp-change sp-change ) |
2dup gen-par-r 2>r ." =" gen-wrapped-void 2r> ; |
2dup gen-par-r 2>r ." =" gen-wrapped-call 2r> ; |
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: gen-wrapped-func ( pars c-name fp-change1 sp-change1 -- fp-change sp-change ) |
: gen-wrapped-func ( pars c-name fp-change1 sp-change1 -- fp-change sp-change ) |
gen-wrapped-a ; |
gen-wrapped-a ; |
Line 398 create gen-wrapped-types
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Line 468 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 " |
.\" (void)\n" |
[ 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 |
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.\" (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" |
?dup-if |
?dup-if |
Line 410 create gen-wrapped-types
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Line 482 create gen-wrapped-types
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endif |
endif |
.\" }\n" ; |
.\" }\n" ; |
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: tempdir ( -- c-addr u ) |
: scan-back { c-addr u1 c -- c-addr u2 } |
s" TMPDIR" getenv dup 0= if |
\ the last occurence of c in c-addr u1 is at u2-1; if it does not |
2drop s" /tmp" |
\ occur, u2=0. |
then ; |
c-addr 1- c-addr u1 + 1- u-do |
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i c@ c = if |
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c-addr i over - 1+ unloop exit endif |
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1 -loop |
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c-addr 0 ; |
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: dirname ( c-addr1 u1 -- c-addr2 u2 ) |
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\ directory name of the file name c-addr1 u1, including the final "/". |
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'/ scan-back ; |
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: basename ( c-addr1 u1 -- c-addr2 u2 ) |
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\ file name without directory component |
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2dup dirname nip /string ; |
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: gen-filename ( x -- c-addr u ) |
: gen-filename ( x -- c-addr u ) |
\ generates a filename without extension for lib-handle-addr X |
\ generates a file basename for lib-handle-addr X |
0 <<# ['] #s $10 base-execute #> |
0 <<# ['] #s $10 base-execute #> |
tempdir s" /gforth_c_" s+ 2swap append #>> ; |
s" gforth_c_" 2swap s+ #>> ; |
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: libcc-named-dir ( -- c-addr u ) |
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libcc-named-dir-v 2@ ; |
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: libcc-tmp-dir ( -- c-addr u ) |
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s" ~/.gforth" arch-modifier s+ s" /libcc-tmp/" s+ ; |
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: prepend-dirname ( c-addr1 u1 c-addr2 u2 -- c-addr3 u3 ) |
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2over s+ 2swap drop free throw ; |
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: open-wrappers ( -- addr|0 ) |
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lib-filename 2@ dirname lib-prefix s+ |
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lib-filename 2@ basename append lib-suffix append |
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2dup libcc-named-dir string-prefix? if ( c-addr u ) |
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\ see if we can open it in the path |
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libcc-named-dir nip /string |
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libcc-path open-path-file if |
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0 exit endif |
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( wfile-id c-addr2 u2 ) rot close-file throw save-mem ( c-addr2 u2 ) |
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endif |
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\ 2dup cr type |
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2dup open-lib >r |
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drop free throw r> ; |
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: c-library-name-setup ( c-addr u -- ) |
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assert( c-source-file-id @ 0= ) |
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{ d: filename } |
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here 0 , lib-handle-addr ! filename lib-filename 2! |
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filename basename lib-modulename 2! |
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['] write-c-prefix-line is save-c-prefix-line ; |
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: c-library-name-create ( -- ) |
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lib-filename 2@ s" .c" s+ 2dup w/o create-file throw |
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c-source-file-id ! |
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drop free throw ; |
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: c-named-library-name ( c-addr u -- ) |
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\ set up filenames for a (possibly new) library; c-addr u is the |
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\ basename of the library |
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libcc-named-dir prepend-dirname c-library-name-setup |
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open-wrappers dup if |
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lib-handle-addr @ ! |
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else |
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libcc-named-dir $1ff mkdir-parents drop |
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drop c-library-name-create |
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c-prefix-lines @ ['] print-c-prefix-line \ first line only |
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c-source-file-id @ outfile-execute |
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endif ; |
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: c-tmp-library-name ( c-addr u -- ) |
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\ set up filenames for a new library; c-addr u is the basename of |
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\ the library |
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libcc-tmp-dir 2dup $1ff mkdir-parents drop |
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prepend-dirname c-library-name-setup c-library-name-create |
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['] print-c-prefix-lines c-source-file-id @ outfile-execute ; |
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: lib-handle ( -- addr ) |
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lib-handle-addr @ @ ; |
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: init-c-source-file ( -- ) |
: init-c-source-file ( -- ) |
c-source-file-id @ 0= if |
lib-handle 0= if |
here 0 , dup lib-handle-addr ! gen-filename 2dup lib-filename 2! |
c-source-file-id @ 0= if |
2dup tempdir nip 1+ /string lib-modulename 2! |
here gen-filename c-tmp-library-name |
s" .c" s+ 2dup w/o create-file throw dup c-source-file-id ! |
endif |
['] print-c-prefix-lines swap outfile-execute |
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drop free throw |
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endif ; |
endif ; |
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: c-source-file ( -- file-id ) |
: c-source-file ( -- file-id ) |
c-source-file-id @ assert( dup ) ; |
c-source-file-id @ assert( dup ) ; |
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: notype-execute ( ... xt -- ... ) |
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what's type { oldtype } try |
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['] 2drop is type execute 0 |
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restore |
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oldtype is type |
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endtry |
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throw ; |
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: c-source-file-execute ( ... xt -- ... ) |
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\ direct the output of xt to c-source-file, or nothing |
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lib-handle if |
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notype-execute |
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else |
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c-source-file outfile-execute |
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endif ; |
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: .lib-error ( -- ) |
: .lib-error ( -- ) |
[ifdef] lib-error |
[ifdef] lib-error |
['] cr stderr outfile-execute |
['] cr stderr outfile-execute |
lib-error ['] type outfile-execute |
lib-error ['] type stderr outfile-execute |
[then] ; |
[then] ; |
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DEFER compile-wrapper-function |
DEFER compile-wrapper-function ( -- ) |
:NONAME ( -- ) |
: compile-wrapper-function1 ( -- ) |
c-source-file close-file throw |
lib-handle 0= if |
0 c-source-file-id ! |
c-source-file close-file throw |
[ libtool-command s" --silent --mode=compile gcc -I " s+ |
0 c-source-file-id ! |
s" includedir" getenv append ] sliteral |
[ libtool-command s" --silent --tag=CC --mode=compile " s+ |
s" -O -c " s+ lib-filename 2@ append s" .c -o " append |
libtool-cc append s" -I '" append |
lib-filename 2@ append s" .lo" append ( c-addr u ) |
s" includedir" getenv append s" '" append ] sliteral |
2dup system drop free throw $? abort" libtool compile failed" |
s" -O -c " s+ lib-filename 2@ append s" .c -o " append |
[ libtool-command s" --silent --mode=link gcc -module -rpath " s+ ] sliteral |
lib-filename 2@ append s" .lo" append ( c-addr u ) |
tempdir s+ s" " append |
\ 2dup type cr |
lib-filename 2@ append s" .lo -o " append |
2dup system drop free throw $? abort" libtool compile failed" |
lib-filename 2@ append s" .la" append ( c-addr u ) |
[ libtool-command s" --silent --tag=CC --mode=link " s+ |
2dup system drop free throw $? abort" libtool link failed" |
libtool-cc append libtool-flags append s" -module -rpath " s+ ] sliteral |
lib-filename 2@ s" .la" s+ |
lib-filename 2@ dirname replace-rpath s+ s" " append |
2dup open-lib dup 0= if |
lib-filename 2@ append s" .lo -o " append |
.lib-error true abort" open-lib failed" |
lib-filename 2@ dirname append lib-prefix append |
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lib-filename 2@ basename append s" .la" append ( c-addr u ) |
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c-libs 2@ append |
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\ 2dup type cr |
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2dup system drop free throw $? abort" libtool link failed" |
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open-wrappers dup 0= if |
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.lib-error true abort" open-lib failed" |
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endif |
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( lib-handle ) lib-handle-addr @ ! |
endif |
endif |
( lib-handle ) lib-handle-addr @ ! |
lib-filename 2@ drop free throw 0 0 lib-filename 2! ; |
2dup delete-file throw drop free throw |
' compile-wrapper-function1 IS compile-wrapper-function |
lib-filename 2@ s" .c" s+ 2dup delete-file throw drop free throw |
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lib-filename 2@ drop free throw 0 0 lib-filename 2! ; IS compile-wrapper-function |
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\ s" ar rcs xxx.a xxx.o" system |
\ s" ar rcs xxx.a xxx.o" system |
\ $? abort" ar generated error" ; |
\ $? abort" ar generated error" ; |
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Line 470 DEFER compile-wrapper-function
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Line 632 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 outfile-execute |
['] gen-wrapper-function c-source-file-execute |
does> ( ... -- ... ) |
does> ( ... -- ... ) |
dup 2@ { xt-defer xt-cfr } |
dup 2@ { xt-defer xt-cfr } |
dup cff-lha @ @ 0= if |
dup cff-lha @ @ 0= if |
Line 493 DEFER compile-wrapper-function
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Line 655 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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: clear-libs ( -- ) \ gforth |
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\G Clear the list of libs |
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c-source-file-id @ if |
|
compile-wrapper-function |
|
endif |
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0. c-libs 2! ; |
|
clear-libs |
|
|
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: c-library-incomplete ( -- ) |
|
true abort" Called function of unfinished named C library" ; |
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|
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: c-library-name ( c-addr u -- ) \ gforth |
|
\G Start a C library interface with name @i{c-addr u}. |
|
clear-libs |
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['] c-library-incomplete is compile-wrapper-function |
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c-named-library-name ; |
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|
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: c-library ( "name" -- ) \ gforth |
|
\G Parsing version of @code{c-library-name} |
|
parse-name save-mem c-library-name ; |
|
|
|
: end-c-library ( -- ) \ gforth |
|
\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 ; |
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|
|
: init-libcc ( -- ) |
|
s" ~/.gforth" arch-modifier s+ s" /libcc-named/" s+ libcc-named-dir-v 2! |
|
[IFDEF] $init |
|
libcc-path $init |
|
libcc-named-dir libcc-path also-path |
|
[ s" libccdir" getenv ] sliteral libcc-path also-path |
|
[THEN] |
|
; |
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|
|
init-libcc |
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|
|
:noname ( -- ) |
|
defers 'cold |
|
init-libcc ; |
|
is 'cold |