From: Tom Tromey <tromey@redhat.com>
To: "Pierre Muller" <pierre.muller@ics-cnrs.unistra.fr>
Cc: <gdb-patches@sourceware.org>
Subject: Re: [RFA] dwarf debug format: Support DW_AT_variable_parameter attribute
Date: Thu, 13 May 2010 17:51:00 -0000 [thread overview]
Message-ID: <m34oibvhgh.fsf@fleche.redhat.com> (raw)
In-Reply-To: <8830.7035308846$1273670829@news.gmane.org> (Pierre Muller's message of "Wed, 12 May 2010 15:27:11 +0200")
>>>>> "Pierre" == Pierre Muller <pierre.muller@ics-cnrs.unistra.fr> writes:
Pierre> Free Pascal compiler has support for
Pierre> DW_AT_variable_parameter attribute, but this is disabled because
Pierre> GDB does not support it yet.
Pierre> The value of the attribute must be a flag according to
Pierre> DWARF specs. The only point I am unsure about is
Pierre> what does a zero value of this flag mean:
Pierre> Should zero be considered as FALSE and
Pierre> thus the should say that this parameter is NOT a variable parameter,
Pierre> or does the simple presence of this attribute condfirm
Pierre> this it is a variable parameter, no matter the value of the flag.
Pierre> I took the first approach here, but have the impression
Pierre> that it is not always the case inside dwarf2read.c code.
I think you made the correct choice.
Pierre> Is this OK?
I wonder whether it is possible for such a parameter to be marked as
LOC_COMPUTED or LOC_OPTIMIZED_OUT by var_decode_location. If so then
changing the class to LOC_REF_ARG seems incorrect.
Tom
next parent reply other threads:[~2010-05-13 17:29 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <8830.7035308846$1273670829@news.gmane.org>
2010-05-13 17:51 ` Tom Tromey [this message]
2010-05-17 17:34 ` Joel Brobecker
2010-05-17 17:34 ` Pierre Muller
2010-05-17 18:54 ` Joel Brobecker
2010-05-17 21:48 ` Pierre Muller
[not found] ` <44296.7587885962$1274132782@news.gmane.org>
2010-05-19 19:43 ` Tom Tromey
2010-05-19 21:45 ` Pierre Muller
[not found] ` <28559.2589797036$1274302480@news.gmane.org>
2010-05-19 22:34 ` Tom Tromey
2010-05-19 23:34 ` [RFA-v2] " Pierre Muller
[not found] ` <27418.1569614031$1274308493@news.gmane.org>
2010-05-21 17:44 ` Tom Tromey
2010-05-21 20:50 ` Pierre Muller
2010-11-04 5:32 ` [new testcase] Regression 7.1->7.2 for iFort [Re: [RFA-v2] dwarf debug format: Support DW_AT_variable_parameter attribute] Jan Kratochvil
2010-11-04 8:47 ` [Core] " Pierre Free Pascal
2010-11-04 18:01 ` Joel Brobecker
2010-11-05 8:04 ` Pierre Free Pascal
2011-09-01 7:20 ` Jan Kratochvil
2010-05-12 13:27 [RFA] dwarf debug format: Support DW_AT_variable_parameter attribute Pierre Muller
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