version 1.22, 2008/06/17 20:18:11
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version 1.32, 2009/12/27 01:00:52
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\ libffi.fs shared library support package 14aug05py |
\ libffi.fs shared library support package 14aug05py |
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\ Copyright (C) 1995,1996,1997,1998,2000,2003,2005,2006,2007 Free Software Foundation, Inc. |
\ Copyright (C) 1995,1996,1997,1998,2000,2003,2005,2006,2007,2008 Free Software Foundation, Inc. |
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\ This file is part of Gforth. |
\ This file is part of Gforth. |
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\ note that the API functions have their arguments reversed and other |
\ note that the API functions have their arguments reversed and other |
\ deviations. |
\ deviations. |
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require libcc.fs |
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c-library libffi |
c-library libffi |
s" ffi" add-lib |
s" ffi" add-lib |
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\c #include <ffi.h> |
\ The ffi.h of XCode needs the following line, and it should not hurt elsewhere |
\c static Cell *gforth_RP; |
\c #define MACOSX |
\c static unsigned char *gforth_LP; |
include-ffi.h-string save-c-prefix-line \ #include <ffi.h> |
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\c #include <stdio.h> |
\c static void **gforth_clist; |
\c static void **gforth_clist; |
\c static void *gforth_ritem; |
\c static void *gforth_ritem; |
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\c #ifndef HAS_BACKLINK |
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\c static void **saved_gforth_pointers; |
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\c #endif |
\c typedef void *Label; |
\c typedef void *Label; |
\c typedef Label *Xt; |
\c typedef Label *Xt; |
\c Label *gforth_engine(Xt *ip, Cell *sp, Cell *rp0, Float *fp, unsigned char *lp); |
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\c static void gforth_callback_ffi(ffi_cif * cif, void * resp, void ** args, void * ip) |
\c static void gforth_callback_ffi(ffi_cif * cif, void * resp, void ** args, void * ip) |
\c { |
\c { |
\c Cell *rp1 = gforth_RP; |
\c #ifndef HAS_BACKLINK |
\c Cell *sp = gforth_SP; |
\c void **gforth_pointers = saved_gforth_pointers; |
\c Float *fp = gforth_FP; |
\c #endif |
\c unsigned char *lp = gforth_LP; |
\c { |
\c void ** clist = gforth_clist; |
\c Cell *rp1 = gforth_RP; |
\c void * ritem = gforth_ritem; |
\c Cell *sp = gforth_SP; |
\c |
\c Float *fp = gforth_FP; |
\c gforth_clist = args; |
\c unsigned char *lp = gforth_LP; |
\c gforth_ritem = resp; |
\c void ** clist = gforth_clist; |
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\c void * ritem = gforth_ritem; |
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\c |
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\c gforth_clist = args; |
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\c gforth_ritem = resp; |
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\c |
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\c gforth_engine((Xt *)ip, sp, rp1, fp, lp, gforth_UP); |
\c |
\c |
\c gforth_engine((Xt *)ip, sp, rp1, fp, lp); |
\c /* restore global variables */ |
\c |
\c gforth_RP = rp1; |
\c /* restore global variables */ |
\c gforth_SP = sp; |
\c gforth_RP = rp1; |
\c gforth_FP = fp; |
\c gforth_SP = sp; |
\c gforth_LP = lp; |
\c gforth_FP = fp; |
\c gforth_clist = clist; |
\c gforth_LP = lp; |
\c gforth_ritem = ritem; |
\c gforth_clist = clist; |
\c } |
\c gforth_ritem = ritem; |
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\c } |
\c } |
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\c static void* ffi_types[] = |
\c static void* ffi_types[] = |
Line 77 c-function ffi-size ffi_size n -- n
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Line 83 c-function ffi-size ffi_size n -- n
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\c (ffi_type *)rtype, (ffi_type **)atypes) |
\c (ffi_type *)rtype, (ffi_type **)atypes) |
c-function ffi-prep-cif ffi_prep_cif1 a n a a -- n |
c-function ffi-prep-cif ffi_prep_cif1 a n a a -- n |
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\c #ifdef HAS_BACKLINK |
\c #define ffi_call1(a_avalues, a_rvalue ,a_ip ,a_cif) \ |
\c #define ffi_call1(a_avalues, a_rvalue ,a_ip ,a_cif) \ |
\c ffi_call((ffi_cif *)a_cif, (void(*)())a_ip, \ |
\c ffi_call((ffi_cif *)a_cif, (void(*)())a_ip, \ |
\c (void *)a_rvalue, (void **)a_avalues) |
\c (void *)a_rvalue, (void **)a_avalues) |
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\c #else |
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\c #define ffi_call1(a_avalues, a_rvalue ,a_ip ,a_cif) \ |
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\c (saved_gforth_pointers = gforth_pointers), \ |
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\c ffi_call((ffi_cif *)a_cif, (void(*)())a_ip, \ |
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\c (void *)a_rvalue, (void **)a_avalues) |
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\c #endif |
c-function ffi-call ffi_call1 a a a a -- void |
c-function ffi-call ffi_call1 a a a a -- void |
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\c #define ffi_prep_closure1(a_ip, a_cif, a_closure) \ |
\c #define ffi_prep_closure1(a_ip, a_cif, a_closure) \ |
Line 218 DOES> ( -- ) dup thislib ! proc: ;
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Line 231 DOES> ( -- ) dup thislib ! proc: ;
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here thisproc @ 2 cells + ! parse-name s, |
here thisproc @ 2 cells + ! parse-name s, |
thislib @ thisproc @ @proc ; |
thislib @ thisproc @ @proc ; |
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: func@ >body cell+ @ ; |
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: func' ' func@ ; |
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: [func'] postpone ['] postpone func@ ; immediate restrict |
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\ stuff for libffi |
\ stuff for libffi |
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\ libffi uses a parameter array for the input |
\ libffi uses a parameter array for the input |
Line 257 Create argptr maxargs 0 [DO] argbuf [I]
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Line 274 Create argptr maxargs 0 [DO] argbuf [I]
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: sf>x ( -- r ) retbuf sf@ ; |
: sf>x ( -- r ) retbuf sf@ ; |
: df>x ( -- r ) retbuf df@ ; |
: df>x ( -- r ) retbuf df@ ; |
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wordlist constant cifs |
table constant cifs |
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Variable cifbuf $40 allot \ maximum: 64 parameters |
Variable cifbuf $40 allot \ maximum: 64 parameters |
: cifreset cifbuf cell+ cifbuf ! ; |
: cifreset cifbuf cell+ cifbuf ! ; |
Line 337 also c-decl definitions
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Line 354 also c-decl definitions
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' >dl+ ' >dl- 6 argtype dlong |
' >dl+ ' >dl- 6 argtype dlong |
' >sf+ ' >sf- 9 argtype sf |
' >sf+ ' >sf- 9 argtype sf |
' >df+ ' >df- &10 argtype df |
' >df+ ' >df- &10 argtype df |
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: ints 0 ?DO int LOOP ; |
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' noop 0 rettype (void) |
' noop 0 rettype (void) |
' is>x 6 rettype (int) |
' is>x 6 rettype (int) |
Line 424 also cb-decl definitions
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Line 442 also cb-decl definitions
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' ffi-arg-longlong 8 argtype' llong |
' ffi-arg-longlong 8 argtype' llong |
' ffi-arg-dlong 6 argtype' dlong |
' ffi-arg-dlong 6 argtype' dlong |
' ffi-arg-ptr &12 argtype' ptr |
' ffi-arg-ptr &12 argtype' ptr |
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: ints ( n -- ) 0 ?DO postpone int LOOP ; immediate |
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' ffi-ret-void 0 rettype' (void) |
' ffi-ret-void 0 rettype' (void) |
' ffi-ret-int 6 rettype' (int) |
' ffi-ret-int 6 rettype' (int) |