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Re: Fix frame-args.exp failure

From: Daniel Jacobowitz <drow at false dot org>
To: Ulrich Weigand <uweigand at de dot ibm dot com>
Cc: Andreas Schwab <schwab at suse dot de>, gdb-patches at sourceware dot org
Date: Thu, 29 May 2008 11:40:57 -0400
Subject: Re: Fix frame-args.exp failure
References: <20080527183701.GA21155@caradoc.them.org> <200805291200.m4TC0VYx011880@d12av02.megacenter.de.ibm.com>

On Thu, May 29, 2008 at 02:00:31PM +0200, Ulrich Weigand wrote:
> Now that this is in, I'm wondering whether we should also add a
> SYMBOL_IS_REFERENCE flag (or maybe make SYMBOL_IS_ARGUMENT triple-
> valued) to indicate that the location described by address_class
> holds a pointer to value instead of the value itself.
> 
> Then we could get rid of LOC_REF_ARG and LOC_REGPARM_ADDR as well ...

Making it triple-valued would not be nice, since at least in theory
the two concepts are orthogonal.  I'd rather see every special case
move to LOC_COMPUTED.  For space savings, Andrew suggested using
the address class as an index into an array of symbol operations.

-- 
Daniel Jacobowitz
CodeSourcery

References:
- Re: Fix frame-args.exp failure
  - From: Daniel Jacobowitz
- Re: Fix frame-args.exp failure
  - From: Ulrich Weigand

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