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Top Forums Shell Programming and Scripting Inputs required in decoding file on AIX- executable (RISC System/6000) or object module not stripped Post 302988675 by bakunin on Friday 30th of December 2016 06:16:06 PM
Old 12-30-2016
Quote:
Originally Posted by venkatesh17
There is a script of type "executable (RISC System/6000) or object module not stripped" on AIX and we are unable to read the contents of it.
This is because there is nothing to read in it. This is a binary file (in the so-called XCOFF-format) and it is most probably the result of a compiler compiling some code written in a normal computer language (C, C++, FORTRAN, or whatever) into an executable file.

If this program (not script) is the result of some in-house development at your site you should be able to find the source code of it somewhere. Use the respective compiler on Linux (mostly gcc, but maybe something else) and compile it there, then you will have a Linux version of the program. (Well, in principle. There are many things that could go wrong, but in theory this will work).

Quote:
Originally Posted by venkatesh17
Is there a way to read the contents of the file on AIX, so that we can rewrite the code in Linux.
No. You can use the strings-program as suggested to find out more details about the program, but that's it. Even if you succeed in reading the program it won't help you because on Linux you will not need this but a different program (that is: the different output the compiler on Linux will produce from the same source code) todo the same thing on Linux which this program did on AIX.

If you have no access to the source code at all you could try to decompile it (notice that there might be copyright issues involved, clear that first), but this is something you need an expert for and even then it might not succeed at all. Even if it does it will be a complicated process.

I hope this helps.

bakunin
 

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INTERCAL::ByteCode(3pm) 				User Contributed Perl Documentation				   INTERCAL::ByteCode(3pm)

TITLE
Language::INTERCAL::Bytecode - intermediate language DESCRIPTION
The CLC-INTERCAL compiler works by producing bytecode from the program source; this bytecode can be interpreted to execute the program immediately; alternatively, a backend can produce something else from the bytecode, for example C or Perl source code which can then be compiled to your computer's native object format. The compiler itself is just some more bytecode. Thus, to produce the compiler you need a compiler compiler, and to produce that you need a compiler compiler compiler; to produce the latter you would need a compiler compiler compiler compiler, and so on to infinity. To simplify the programmer's life (eh?), the compiler compiler is able to compile itself, and is therefore identical to the compiler compiler compiler (etcetera). The programmer can start the process because a pre-compiled compiler compiler, in the form of bytecode, is provided with the CLC-INTERCAL distribution; this compiler compiler then is able to compile all other compilers, as well as to rebuild itself if need be. See the online manual or the HTML documentation included with the distribution for more information about this. SEE ALSO
A qualified psychiatrist AUTHOR
Claudio Calvelli - intercal (whirlpool) sdf.lonestar.org (Please include the word INTERLEAVING in the subject when emailing that address, or the email may be ignored) perl v5.8.8 2008-03-29 INTERCAL::ByteCode(3pm)
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