Message-Id:	<01BDF1C8.091D24A0@secp6071.mlg.cit.alcatel.es>
From:	=?iso-8859-1?Q?Diego_Dom=EDnguez_Cazorla?=
	<ddomingu AT mlg DOT cit DOT alcatel DOT es>
To:	"'djgpp AT delorie DOT com'" <djgpp AT delorie DOT com>
Subject:	RE: can't track variables in RHGDB
Date:	Wed, 7 Oct 1998 07:56:46 +-100
Mime-Version:	1.0
Reply-To:	djgpp AT delorie DOT com

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Virge wrote:

I guess it's my fault, but I can't track certain variables in RHGDB!
it says they are not available, even though I entered the names =
correctly.

Only some of the variables are missing.

does anyone knows why??


	I guess you are using optimization (-O3 or something like that). If it =
is so, there is 'the problem'.

	I once read somewhere that gdb/rhgdb works with the generated asm =
variables, so if the optimizer thinks that a variable is no longer =
needed 'cause it can use a temporary register instead, then the variable =
will not be visible as long as it won't exist in the asm code.

	If all this is your case, you can do it in a tricky way: pass by =
reference your variable to any function (I use printf(variable)) to make =
the optimizer think your variable can not be in a temporary register.


Diego Dominguez
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