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Re: Designs for better debug info in GCC


On Nov 24, 2007, kenner@vlsi1.ultra.nyu.edu (Richard Kenner) wrote:

>> Besides, the Ada RTS compiles differently with -g than without -g,
>> such that compare-debug doesn't pass if you compare sysdep.o.  Nobody
>> but me seems to care.

> That's wierd.  Except on Windows, VXWorks, and VMS, there's almost
> no code in that file.

Yep.  On GNU/Linux, the difference is precisely that, when compiling
with -g, you get the variables that represent the file open modes to
the output, while compiling without -g they're completely optimized
away.

-- 
Alexandre Oliva         http://www.lsd.ic.unicamp.br/~oliva/
FSF Latin America Board Member         http://www.fsfla.org/
Red Hat Compiler Engineer   aoliva@{redhat.com, gcc.gnu.org}
Free Software Evangelist  oliva@{lsd.ic.unicamp.br, gnu.org}


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