From: | Andres Freund <andres(at)2ndquadrant(dot)com> |
---|---|
To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
Cc: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Peter Geoghegan <pg(at)heroku(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: Wait free LW_SHARED acquisition - v0.2 |
Date: | 2014-10-10 10:49:01 |
Message-ID: | 20141010104901.GB6670@alap3.anarazel.de |
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Lists: | pgsql-hackers |
On 2014-10-08 20:07:35 -0400, Robert Haas wrote:
> On Wed, Oct 8, 2014 at 2:04 PM, Andres Freund <andres(at)2ndquadrant(dot)com> wrote:
> > So, what makes it work for me (among other unrelated stuff) seems to be
> > the following in .gdbinit, defineing away some things that gdb doesn't
> > handle:
> > macro define __builtin_offsetof(T, F) ((int) &(((T *) 0)->F))
> > macro define __extension__
> > macro define AssertVariableIsOfTypeMacro(x, y) ((void)0)
> >
> > Additionally I have "-ggdb -g3" in CFLAGS. That way gdb knows about
> > postgres' macros. At least if you're in the right scope.
> >
> > As an example, the following works:
> > (gdb) p dlist_is_empty(&BackendList) ? NULL : dlist_head_element(Backend, elem, &BackendList)
>
> Ah, cool. I'll try that.
If that works for you, should we put it somewhere in the docs? If so,
where?
Greetings,
Andres Freund
--
Andres Freund http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
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