From: mec.gnu@mindspring.com (Michael Elizabeth Chastain)
To: drow@false.org, eliz@gnu.org
Cc: gdb@sources.redhat.com, mec.gnu@mindspring.com, rolandz@poczta.fm
Subject: Re: How to setup a breakpoint on constructor
Date: Fri, 16 Jul 2004 19:59:00 -0000 [thread overview]
Message-ID: <20040716193117.EFE514B104@berman.michael-chastain.com> (raw)
To take the points in reverse order,
> (B) It exposes the difference between complete and base constructors,
> which is an implementation detail of the C++ ABI that most users don't
> understand.
That is reality. The reality is that g++ emits two functions in the
object code. In my opinion, if we try to gloss over that, then we'll
just create more confusion for commands such as 'disassemble' and
'tbreak'.
> (A) It was an ugly interface change to work around an internal
> limitation, and they needed to retrain users to it.
I agree with this part, to an extent. However, the gdb group
has no control over the fact that there are two object code
functions.
I like the way it worked in gcc 2.95.3. With gcc 2.95.3,
gcc emits one function with a hidden parameter. c++ programmers
and gdb are both familiar with hidden parameters ('this').
If I recall correctly, Apple modified gcc 3.X to do something
similar.
Michael C
next reply other threads:[~2004-07-16 19:31 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-16 19:59 Michael Elizabeth Chastain [this message]
2004-07-16 22:15 ` Jim Blandy
2004-07-17 14:30 ` Eli Zaretskii
2004-07-17 14:54 ` Daniel Jacobowitz
-- strict thread matches above, loose matches on Subject: below --
2004-07-18 19:29 Michael Elizabeth Chastain
2004-07-19 3:58 ` Eli Zaretskii
2004-07-17 23:17 Michael Elizabeth Chastain
2004-07-18 5:05 ` Eli Zaretskii
2004-07-18 18:44 ` Daniel Jacobowitz
2004-07-18 19:03 ` Eli Zaretskii
2004-07-19 3:22 ` Daniel Jacobowitz
2004-07-19 14:51 ` Eli Zaretskii
2004-07-17 10:09 Michael Elizabeth Chastain
2004-07-15 13:55 Michael Elizabeth Chastain
2004-07-15 14:09 ` Daniel Jacobowitz
2004-07-16 11:11 ` Eli Zaretskii
2004-07-16 14:27 ` Daniel Jacobowitz
2004-07-17 10:30 ` Eli Zaretskii
2004-07-15 11:31 Michael Elizabeth Chastain
2004-07-16 13:17 ` Roland Zerek
2004-07-15 10:30 Roland Zerek
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