C++ intermediate bytecode

C++ intermediate bytecode

[Optymizer Sez]

Hi!

I'd like to ask if there is a way to use GCC in order to compile a C++ source program into machine-independent code (bytecode, perhaps?) and then translate the bytecode into processor-dependent code on the target machine?
Something like the Amsterdam Compiler Kit, but for C++ and x86_64 would be great!

Thanks!



      

Re: C++ intermediate bytecode

[Ian Lance Taylor]

Optymizer Sez <optymizer@yahoo.com> writes:

> I'd like to ask if there is a way to use GCC in order to compile a
> C++ source program into machine-independent code (bytecode,
> perhaps?) and then translate the bytecode into processor-dependent
> code on the target machine?

No.  Sorry.

Ian

Re: C++ intermediate bytecode

[Tom St Denis]

Optymizer Sez wrote:
> Hi!
>
> I'd like to ask if there is a way to use GCC in order to compile a C++ source program into machine-independent code (bytecode, perhaps?) and then translate the bytecode into processor-dependent code on the target machine?
> Something like the Amsterdam Compiler Kit, but for C++ and x86_64 would be great!
>   

Why not just shell to g++ then dlopen() the object?  That would require 
the compiler on your target, but it lets you execute runtime provided 
source in your application [which btw is a horrible security nightmare...]

Tom

Re: C++ intermediate bytecode

[Jim Cobban]

Optymizer Sez wrote:
> Hi!
>
> I'd like to ask if there is a way to use GCC in order to compile a C++ source program into machine-independent code (bytecode, perhaps?) and then translate the bytecode into processor-dependent code on the target machine?
> Something like the Amsterdam Compiler Kit, but for C++ and x86_64 would be great!
>   
The language definition of C++ is not machine independent so the exact 
meaning of a particular source program varies from platform to 
platform.  For example there are significant differences in the 
interpretation of programs on big-endian as opposed to little-endian 
platforms, and even between 32-bit and 64-bit processors in the same 
family.  Furthermore there are vast differences between different 
operating systems.  Dealing with those differences is one of the issues 
that Java was designed to address.

-- 
Jim Cobban   jcobban@magma.ca
34 Palomino Dr.
Kanata, ON, CANADA
K2M 1M1
+1-613-592-9438

Re: C++ intermediate bytecode

[Dario Saccavino]

2008/7/14 Optymizer Sez <optymizer@yahoo.com>:
> Hi!
>
> I'd like to ask if there is a way to use GCC in order to compile a C++ source program into machine-independent code (bytecode, perhaps?) and then translate the bytecode into processor-dependent code on the target machine?
> Something like the Amsterdam Compiler Kit, but for C++ and x86_64 would be great!
>

Hi, I'm not a GCC expert, but there is LLVM (http://llvm.org), that
provides an infrastructure to compile C and C++ programs into some
kind of bytecode. The compiler is "GCC-based" and the bytecode can be
translated to native code or interpreted on the target machine.

   Dario

Re: C++ intermediate bytecode

[Andrew Haley]

Dario Saccavino wrote:
> 2008/7/14 Optymizer Sez <optymizer@yahoo.com>:
>> Hi!
>>
>> I'd like to ask if there is a way to use GCC in order to compile a C++ source program into machine-independent code (bytecode, perhaps?) and then translate the bytecode into processor-dependent code on the target machine?
>> Something like the Amsterdam Compiler Kit, but for C++ and x86_64 would be great!
>>
> 
> Hi, I'm not a GCC expert, but there is LLVM (http://llvm.org), that
> provides an infrastructure to compile C and C++ programs into some
> kind of bytecode. The compiler is "GCC-based"

Not exactly.  I think they use a gcc front-end, but that's all.

Andrew.