[pypy-dev] Compiling RPython with ctypes

[Alex Gaynor]

On Tue, Jul 12, 2011 at 9:12 AM, Andrew Evans <andrew.rustytub at gmail.com>wrote:

> Hello I am running into some snags developing an executable in pypy with
> translate.py and wondering what the best method for me to do this with my
> code would be. I am developing an Exploit Framework and one of the features
> I would like to have is compiling an executable. I am wondering if this is
> even possible with my code but it does run in the PyPy Interpreter
>
> As an example I would like to compile this code
>
> import array
> from ctypes import *
> myCode = array.array('b',
> "\xda\xde\xd9\x74\x24\xf4\xb8\x22\xd2\x27\x7a\x29\xc9\xb1\x4b"
>
> "\x5b\x31\x43\x1a\x83\xeb\xfc\x03\x43\x16\xe2\xd7\x3b\xbc\x7a"
>
> "\x17\xbc\x95\x4b\xd7\xd8\x92\xec\xe7\xa5\x65\x94\x08\x2d\x25"
>
> "\x69\x9d\x41\xba\xdc\x2a\xe1\xca\xf7\x25\xe2\xca\x07\xbe\xa2"
>
> "\xfe\x8a\x80\x5e\x74\xd4\x3c\xc1\x49\xb5\xb7\x91\x69\x12\x4c"
>
> "\x2c\x4e\xd1\x06\xaa\xd6\xe4\x4c\x3f\x6c\xff\x1b\x1a\x51\xfe"
>
> "\xf0\x78\xa5\x49\x8d\x4b\x4d\x48\x7f\x82\xae\x7a\xbf\x19\xfc"
>
> "\xf9\xff\x96\xfa\xc0\x30\x5b\x04\x04\x25\x90\x3d\xf6\x9d\x71"
>
> "\x37\xe7\x56\xdb\x93\xe6\x83\xba\x50\xe4\x18\xc8\x3d\xe9\x9f"
>
> "\x25\x4a\x15\x14\xb8\xa5\x9f\x6e\x9f\x29\xc1\xad\x72\x01\x53"
>
> "\xd9\x27\x5d\xac\xe6\xb1\xa5\xd2\xdc\xca\xa9\xd4\xdc\x4b\x6e"
>
> "\xd0\xdc\x4b\x71\xe0\x12\x3e\x97\xd1\x42\xd8\x57\xd6\x92\x43"
>
> "\xa9\x5c\x9c\x0d\x8e\x83\xd3\x70\xc2\x4c\x13\x73\x1b\xc4\xf6"
>
> "\x9b\x43\x29\x07\xa4\xfd\x17\x1c\xb9\xa0\x1a\x9f\x3a\xd4\xd4"
>
> "\xde\x82\xee\x16\xe0\x04\x07\xa0\x1f\xfb\x28\x26\xd1\x5f\xe6"
>
> "\x79\xbd\x0c\xf7\x2f\x39\x82\xc7\x80\xbe\xb1\xcf\xc8\xad\xc5"
>
> "\x2f\xf7\x4e\x57\xb4\x26\xf5\xdf\x51\x17\xda\x7c\xba\x39\x41"
>
> "\xf7\x9a\xb0\xfa\x92\xa8\x1a\x8f\x39\x2e\x2e\x06\xa6\x80\xf0"
>
> "\xb5\x16\x8f\x9b\x65\x78\x2e\x38\x01\xa6\x96\xe6\xe9\xc8\xb3"
>
> "\x92\xc9\x78\x53\x38\x68\xed\xcc\xcc\x05\x98\x62\x11\xb8\x06"
>
> "\xee\x38\x54\xae\x83\xce\xda\x51\x10\x40\x68\xe1\xf8\xed\xe9"
>                     "\x66\x8c\x78\x95\x58\x4e\x54\x34\xfd\xea\xaa")
> buffer = myCode.buffer_info()[0]
> my_callback = CFUNCTYPE(c_int)
>
> I would appreciate any suggestions
>
> *cheers
>
> and ty :D
>
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>
>
RPython cannot be used to translate arbitrary code, neither ctypes nor array
are RPython.  If you want to translate you'd need explicitly malloc the
type'd memory and use rffi for external calls.

Alex

-- 
"I disapprove of what you say, but I will defend to the death your right to
say it." -- Evelyn Beatrice Hall (summarizing Voltaire)
"The people's good is the highest law." -- Cicero
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