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Message-ID: <3D2EBFC2.6973@multimediaware.com>
Date: Fri, 12 Jul 2002 13:38:42 +0200
From: Wolfgang Hesseler <qv AT multimediaware DOT com>
MIME-Version: 1.0
To: egor duda <cygwin AT cygwin DOT com>
Subject: Re: Bug: BSS segment in COFF files
References: <3D2EA2E2 DOT 2881 AT multimediaware DOT com> <8772121004 DOT 20020712145134 AT logos-m DOT ru>
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> If you run gcc with '--save-temps' flag, and then look into
> 'yourfile.s' file, you'll see that uninitialized data is tagged as
> "common" (using '.comm' directive) and is put to bss only by linker
> when final executable is created. To turn this feature off, use
> '-fno-common' flag when compiling your object file.

This works, however only if the variables are non-static. If a 
variable is static the .comm directive is still used.
 
> Not sure if it's all that needed to link gcc-produced object files
> with watcom linker, though. For instance, for function 'func ()' gcc
> uses _func as symbol name in object files while watcom uses 'func_'.

The only problem is that some functions call external functions 
like _log10. Is the cygwin1.dll source code of that function available?
I did a quick search in CVS but couldn't find it.


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