From:	jazz AT softway DOT com (Jason Zions)
Subject:	Re: Debugging info for commercial linkers?
8 Aug 1997 17:14:43 -0700 :
Approved:	cygnus DOT gnu-win32 AT cygnus DOT com
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Message-ID:	<33EB5DC0.60E3.cygnus.gnu-win32@softway.com>
References:	<199708080834 DOT BAA01228 AT stars DOT cisco DOT com>
Reply-To:	jazz AT softway DOT com
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Original-To:	Tim Iverson <iverson AT cisco DOT com>
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Original-Sender:	owner-gnu-win32 AT cygnus DOT com

While porting gdb to OpenNT, we've discovered that the MS compilers and
gcc generate local variable debug information differently; that is, even
if you tell MSVC to generate COFF-compatible debug information, it still
outputs debug information for local vars in non-COFF form. It seems
likely that your PharLap linker is expecting MS-form debug data and
isn't finding it in a gcc-generated .o file.

Alpha-test versions of gcc and g++ for OpenNT are available from
http://www.opennt.com in the tools warehouse (under Support). As soon as
we're confident we did the port right, the source code diffs will be
made available there as well. Of interest: our port of gcc/g++ correctly
generates code for NT on DEC Alpha hardware.

Jason


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