version 1.6, 2007/01/14 22:19:35
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version 1.9, 2007/02/23 22:33:21
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Line 45
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Line 45
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\ the function pointer of gforth_c_lseek_ndn_d on the stack and |
\ the function pointer of gforth_c_lseek_ndn_d on the stack and |
\ calls CALL-C. |
\ calls CALL-C. |
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\ ToDo: |
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\ Batching, caching and lazy evaluation: |
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\ Batching: |
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\ New words are deferred, and the corresponding C functions are |
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\ collected in one file, until the first word is EXECUTEd; then the |
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\ file is compiled and linked into the system, and the word is |
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\ resolved. |
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\ Caching: |
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\ Instead of compiling all this stuff anew for every execution, we |
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\ keep the files around and have an index file containing the function |
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\ names and their corresponding .so files. If the needed wrapper name |
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\ is already present, it is just linked instead of generating the |
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\ wrapper again. This is all done by loading the index file(s?), |
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\ which define words for the wrappers in a separate wordlist. |
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\ The files are built in .../lib/gforth/$VERSION/libcc/ or |
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\ ~/.gforth/libcc/$HOST/. |
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\ other things to do: |
\ other things to do: |
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\ c-variable forth-name c-name |
\ c-variable forth-name c-name |
Line 290 create gen-wrapped-types
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Line 313 create gen-wrapped-types
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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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: link-wrapper-function ( -- ) |
: link-wrapper-function ( -- sym ) |
s" /home/anton/gforth/xxx.so.1" open-lib ( lib-handle ) |
s" /home/anton/gforth/xxx.so.1" open-lib ( lib-handle ) |
s" gforth_c_strlen_a_n" rot lib-sym dup 0= -32 and throw ; |
s" gforth_c_strlen_a_n" rot lib-sym dup 0= -&32 and throw ; |
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: c-function ( "forth-name" "c-name" "{libcc-type}" "--" "libcc-type" -- ) |
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create here >r 0 , \ place for the wrapper function pointer |
: c-function-ft ( xt-defer xt-cfr "c-name" "{libcc-type}" "--" "libcc-type" -- ) |
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\ build time/first time action for c-function |
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noname create 2, |
parse-name { d: c-name } |
parse-name { d: c-name } |
parse-function-types c-name string, |
here parse-function-types c-name string, |
r@ cell+ |
s" xxx.c" w/o create-file throw >r ( R:file-id ) |
s" xxx.c" w/o create-file throw ( file-id ) |
['] gen-wrapper-function r@ outfile-execute |
dup >r >outfile gen-wrapper-function outfile< |
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r> close-file throw |
r> close-file throw |
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does> ( ... -- ... ) |
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2@ { xt-defer xt-cfr } |
compile-wrapper-function |
compile-wrapper-function |
link-wrapper-function |
link-wrapper-function xt-cfr >body ! |
r> ! |
xt-cfr xt-defer defer! |
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xt-cfr execute ; |
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: c-function-rt ( -- ) |
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\ run-time definition for c function; addr is the address where |
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\ the sym should be stored |
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noname create 0 , |
does> ( ... -- ... ) |
does> ( ... -- ... ) |
@ call-c ; |
@ call-c ; |
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: c-function ( "forth-name" "c-name" "{libcc-type}" "--" "libcc-type" -- ) |
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defer lastxt dup c-function-rt lastxt c-function-ft |
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lastxt swap defer! ; |
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s" Library not found" exception constant err-nolib |
s" Library not found" exception constant err-nolib |
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Line 345 s" Library not found" exception constant
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Line 377 s" Library not found" exception constant
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\ c-function func test5 -- func |
\ c-function func test5 -- func |
\ c-function void test6 -- void |
\ c-function void test6 -- void |
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\c #include <string.h> |
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c-function strlen strlen a -- n |
c-function strlen strlen a -- n |
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cr s\" fooo\0" 2dup dump drop .s strlen cr .s cr |
cr s\" fooo\0" 2dup dump drop .s strlen cr .s cr |