From: Joel Brobecker <brobecker@adacore.com>
To: Yao Qi <yao@codesourcery.com>
Cc: gdb-patches@sourceware.org, cltang@codesourcery.com
Subject: Re: [PATCH 1/4] New gdb arch hook: return_with_first_hidden_param_p
Date: Tue, 15 May 2012 15:01:00 -0000 [thread overview]
Message-ID: <20120515150132.GR10253@adacore.com> (raw)
In-Reply-To: <4FB1FCD2.5070302@codesourcery.com>
> > So, you are saying that we have functions who have an extra hidden
> > parameter used for something other than the function's return value?
> >
>
> No, the extra hidden parameter's type is the reference of the function's
> return type. My point is if we only examine debug info, we don't know
> whether hidden parameter is passed, because the debug info is the same
> regardless of hidden parameter is passed or not.
I may be too naive, or maybe I am not understanding what you are saying,
but I find it horrifying that the compiler would generate a parameter
DIE for a function if that parameter is not actually passed when calling
that function. Did I misunderstand?
--
Joel
next prev parent reply other threads:[~2012-05-15 15:01 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-18 13:28 Yao Qi
2012-04-18 13:18 ` [PATCH 3/4] sh: Install return_with_first_hidden_param_p Yao Qi
2012-05-16 21:00 ` Tom Tromey
2012-04-18 13:18 ` [PATCH 4/4] m68k: " Yao Qi
2012-05-16 21:01 ` Tom Tromey
2012-04-18 13:18 ` [PATCH 2/4] tic6x: " Yao Qi
2012-05-16 20:59 ` Tom Tromey
2012-04-25 11:02 ` [PATCH 1/4] New gdb arch hook: return_with_first_hidden_param_p Yao Qi
2012-05-03 0:43 ` [ping 2] : " Yao Qi
2012-05-03 1:15 ` Joel Brobecker
2012-05-03 7:00 ` Yao Qi
2012-05-04 17:58 ` Joel Brobecker
2012-05-07 3:39 ` Yao Qi
2012-05-07 20:14 ` Joel Brobecker
2012-05-09 8:39 ` Yao Qi
2012-05-10 21:21 ` Joel Brobecker
2012-05-11 10:35 ` Yao Qi
2012-05-14 17:15 ` Joel Brobecker
2012-05-15 6:51 ` Yao Qi
2012-05-15 15:01 ` Joel Brobecker [this message]
2012-05-16 1:37 ` Yao Qi
2012-05-16 15:31 ` Joel Brobecker
2012-05-16 21:03 ` Tom Tromey
2012-05-15 18:03 ` Mark Kettenis
2012-05-16 1:55 ` Yao Qi
2012-05-17 21:02 ` Mark Kettenis
2012-07-06 13:17 ` Gary Benson
2012-05-15 15:35 ` Thomas Schwinge
2012-05-15 21:30 ` Joel Brobecker
2012-05-03 14:04 ` Chung-Lin Tang
2012-05-16 20:56 ` Tom Tromey
2012-05-16 23:03 ` Mark Kettenis
2012-06-08 14:30 ` Yao Qi
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