What tools produce C code that does not produce errors when you try to recompile it again? Can Hex-Rays decompiler convert everything to project files in a single folder and just compile it?


The primary purpose of decompilation is not to produce code that is compiled back with no errors, but rather recover logical flow of a binary. Hex-Ras Decompiler comes with its own set of limitation noted in Hex-Rays Decompiler Manual, to mention few:

Below are the most important limitations of our decompilers (all processors):
     * exception handling is not supported
     * type recovery is not performed
     * global program analysis is not performed
  • My question was: Is there any decompiler that produces code that can be recompiled easily? – user8005 Aug 9 '13 at 15:16
  • @user8005: Your question is and I quote: "...does not produce errors when your try to compile it"... There is no tools like that. – PSS Aug 9 '13 at 15:18
  • When the source is C# and not C, ILSpy works great btw... – user8005 Aug 9 '13 at 15:34
  • 3
    @user8005: sure...However, your question is about C...not C#. – PSS Aug 9 '13 at 15:38
  • In fact, it would be trivial to produce cleanly compiling C code that simply inlines any questionable assembly code that it can't understand. As PSS points out, recompilation is not the point of decompilation. – David Hoelzer Aug 13 '13 at 10:56

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