RE: GCC compiler collection

[David Korn <dkorn at pixelpower dot com>]

>-----Original Message-----
>From: Manikandan.V [mailto:manikv@hclt.com]
>Sent: 04 April 2001 11:44

>If I want to make only a 'C' compiler for new architecture (I mean porting
>GCC to new platform). In that case, If I take all the source code of GCC
>(which supports C/C++ etc languages), intern it increase my 
>source code size of my 'C' compiler for new architecture and makes the
>maintenance bit complex. Is not it !!.

  No, I think you have misunderstood.

  The parts of the compiler that handle c or c++ are separate from the parts
that handle the target architecture.

  You create a new port that translates RTL into the assembler code of the
new platform, then it works automatically with C *and* C++ and Java and all
the other languages that Gcc supports.

  For your new port, you would make a new subdirectory under gcc/config/
<name of target>, add the needed files (<target>.h, <target>.c and
<target>.md, and perhaps some makefile fragments).  Since all the Gcc
languages convert into the same kind of RTL, your new back end then
works automatically with all the languages.

    DaveK
-- 
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addressing an education and technology conference. He was whisked away as
his audience bolted for the exits. Some audience members were knocked down
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       -- CNN 2/28/01 


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