Re: Help Needed for sparc object hackery

larus@cs.wisc.edu (James Larus)
Mon, 2 Aug 1993 23:32:53 GMT

          From comp.compilers
Related articles
Help Needed for sparc object hackery sardana@asl.dl.nec.com (1993-07-22)
Re: Help Needed for sparc object hackery pardo@cs.washington.edu (1993-07-23)
Re: Help Needed for sparc object hackery larus@cs.wisc.edu (1993-08-02)
| List of all articles for this month |
Newsgroups: comp.compilers
From: larus@cs.wisc.edu (James Larus)
Keywords: sparc, assembler
Organization: U of Wisconsin CS Dept
References: 93-07-070 93-07-072
Date: Mon, 2 Aug 1993 23:32:53 GMT

pardo@cs.washington.edu (David Keppel) writes:
|> It is hard, in the general case, to examine an arbitrary executable and
|> determine what is code and what is data. ...
|> Here, "hard" means something like "a solution to the halting
|> problem" (though I lack a formal proof).


David,
    It is hard, but far from impossible, to change executable for programs
compiled by a compiler. To get a flavor of what is involved, the file:


primost.cs.wisc.edu:~ftp/pub/rewriting-executables.ps




/Jim


James Larus
Computer Sciences Dept.
University of Wisconsin-Madison


--

Post a followup to this message

Return to the comp.compilers page.
Search the comp.compilers archives again.