Executing machine code basically just requires a call to mmap to make the data executable. The calling code can be generated on the fly using ffi: http://github.com/wedesoft/aiscm
On August 22, 2015 12:31:56 AM GMT+01:00, Elzair <elzairthesorce...@gmail.com> wrote: >The other day I came across a page on Rosetta Code showing how to >directly execute x86 instructions across several languages: >http://rosettacode.org/wiki/Machine_code > >For example, here is the code for Racket. >#lang racket/base > >(require ffi/unsafe) > >; set up access to racket internals >(define scheme-malloc-code >(get-ffi-obj 'scheme_malloc_code #f (_fun (len : _intptr) -> >_pointer))) >(define scheme-free-code >(get-ffi-obj 'scheme_free_code #f (_fun _pointer -> _void))) > >(define opcodes '(139 68 36 4 3 68 36 8 195)) > >(define code (scheme-malloc-code 64)) > >(for ([byte opcodes] >[i (in-naturals)]) >(ptr-set! code _ubyte i byte)) > >(define function (cast code _pointer (_fun _ubyte _ubyte -> _ubyte))) > >(function 7 12) > >(scheme-free-code code) > >Is this possible in Guile (with, say, the FFI)? -- Jan Wedekind http://www.wedesoft.de/
