From: Hal Black <hablack@vt.edu>
To: binutils@sources.redhat.com
Subject: Re: [BUG] ld behavior varies for C++ static initializer depending on .a or .o input
Date: Sat, 12 Apr 2003 04:01:00 -0000 [thread overview]
Message-ID: <3E978F84.4050603@vt.edu> (raw)
In-Reply-To: <orhe95d4i4.fsf@free.redhat.lsd.ic.unicamp.br>
Alexandre Oliva wrote:
> On Apr 11, 2003, Hal Black <hablack@vt.edu> wrote:
>
>
>>But when linking .a files composed
>>of those .o files, static initializers are not called.
>
>
> And, if you look closer, you'll notice the object files that contain
> the initializers aren't linked in at all. Which is perfectly fine,
> given that no symbols from it are referenced. Maybe you want
> --whole-archive?
>
Thanks Alexandre, for replying and the --whole-archive tip - it works
great (has to be -Wl,-whole-archive when passed to g++, though, as noted
on the man page).
I still believe this is a bug, however. Even though there aren't any
references to static intializers, there is an implicit reference to
them. When using .o files, there are no references either, but the
static intializer is included in that case. Why should it be different
for a .a file with the same .o files in it? Should .a files not be used
for C++?
Perhaps the solution is to pass --whole-archive by default to ld when
linking with g++.
But, at least there is a workaround.
Thanks also to Alan for the reference, I don't know how I missed that
thread.
next prev parent reply other threads:[~2003-04-12 4:01 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-11 3:43 Hal Black
2003-04-11 4:47 ` Alexandre Oliva
2003-04-12 4:01 ` Hal Black [this message]
2003-04-12 5:43 ` Alexandre Oliva
2003-04-12 14:24 ` Hal Black
2003-04-12 16:52 ` Ian Lance Taylor
2003-04-12 18:01 ` Hal Black
2003-04-12 20:45 ` Alexandre Oliva
2003-04-13 2:11 ` Hal Black
2003-04-14 18:41 ` Alexandre Oliva
2003-04-13 22:55 ` Ian Lance Taylor
2003-04-13 23:07 ` Zack Weinberg
2003-04-13 23:15 ` Ian Lance Taylor
2003-04-13 23:26 ` Ulrich Drepper
2003-04-14 5:14 ` Hal Black
2003-04-14 5:30 ` Ian Lance Taylor
2003-04-11 8:16 ` Alan Modra
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