Is there a C decompiler

Question

I have a program in which I ve lost the C   source code   Are there any good C   decompilers out there   I ve already ran across Boomerang

User · Accepted Answer

You can use IDA Pro by Hex-Rays  You will usually not get good C   out of a binary unless you compiled in debugging information  Prepare to spend a lot of manual labor reversing the code   If you didn t strip the binaries there is some hope as IDA Pro can produce C-alike code for you to work with  Usually it is very rough though  at least when I used it a couple of years ago

User · Answer

information is discarded in the compiling process   Even if a decompiler could produce the logical equivalent code with classes and everything  it probably can t   the self-documenting part is gone in optimized release code   No variable names  no routine names  no class names - just addresses

User · Answer

Yes  but none of them will manage to produce readable enough code to worth the effort  You will spend more time trying to read the decompiled source with assembler blocks inside  than rewriting your old app from scratch

User · Answer

information is discarded in the compiling process   Even if a decompiler could produce the logical equivalent code with classes and everything  it probably can t   the self-documenting part is gone in optimized release code   No variable names  no routine names  no class names - just addresses

User · Answer

Depending on how large and how well-written the original code was  it might be worth starting again in your favourite language  which might still be C    and learning from any mistakes made in the last version  Didn t someone once say about writing one to throw away   n b  Clearly if this is a huge product  then it may not be worth the time

User · Answer

Depending on how large and how well-written the original code was  it might be worth starting again in your favourite language  which might still be C    and learning from any mistakes made in the last version  Didn t someone once say about writing one to throw away   n b  Clearly if this is a huge product  then it may not be worth the time

User · Answer

information is discarded in the compiling process   Even if a decompiler could produce the logical equivalent code with classes and everything  it probably can t   the self-documenting part is gone in optimized release code   No variable names  no routine names  no class names - just addresses

User · Answer

I haven t seen any decompilers that generate C   code  I ve seen a few experimental ones that make a reasonable attempt at generating C code  but they tended to be dependent on matching the code-generation patterns of a particular compiler  that may have changed  it s been awhile since I last looked into this   Of course any symbolic information will be gone  Google for  decompiler

User · Answer

Depending on how large and how well-written the original code was  it might be worth starting again in your favourite language  which might still be C    and learning from any mistakes made in the last version  Didn t someone once say about writing one to throw away   n b  Clearly if this is a huge product  then it may not be worth the time

User · Answer

information is discarded in the compiling process   Even if a decompiler could produce the logical equivalent code with classes and everything  it probably can t   the self-documenting part is gone in optimized release code   No variable names  no routine names  no class names - just addresses

User · Answer

Yes  but none of them will manage to produce readable enough code to worth the effort  You will spend more time trying to read the decompiled source with assembler blocks inside  than rewriting your old app from scratch

User · Answer

Yes  but none of them will manage to produce readable enough code to worth the effort  You will spend more time trying to read the decompiled source with assembler blocks inside  than rewriting your old app from scratch

User · Answer

Depending on how large and how well-written the original code was  it might be worth starting again in your favourite language  which might still be C    and learning from any mistakes made in the last version  Didn t someone once say about writing one to throw away   n b  Clearly if this is a huge product  then it may not be worth the time

User · Answer

I haven t seen any decompilers that generate C   code  I ve seen a few experimental ones that make a reasonable attempt at generating C code  but they tended to be dependent on matching the code-generation patterns of a particular compiler  that may have changed  it s been awhile since I last looked into this   Of course any symbolic information will be gone  Google for  decompiler

User · Answer

I haven t seen any decompilers that generate C   code  I ve seen a few experimental ones that make a reasonable attempt at generating C code  but they tended to be dependent on matching the code-generation patterns of a particular compiler  that may have changed  it s been awhile since I last looked into this   Of course any symbolic information will be gone  Google for  decompiler

User · Answer

Yes  but none of them will manage to produce readable enough code to worth the effort  You will spend more time trying to read the decompiled source with assembler blocks inside  than rewriting your old app from scratch

User · Answer

I haven t seen any decompilers that generate C   code  I ve seen a few experimental ones that make a reasonable attempt at generating C code  but they tended to be dependent on matching the code-generation patterns of a particular compiler  that may have changed  it s been awhile since I last looked into this   Of course any symbolic information will be gone  Google for  decompiler

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