From: Segher Boessenkool <segher@kernel.crashing.org>
To: Florian Weimer <fweimer@redhat.com>
Cc: Josef Wolf <jw@raven.inka.de>, gcc-help@gcc.gnu.org
Subject: Re: Propagating addresses from linker to the runtie
Date: Fri, 18 Oct 2019 14:14:00 -0000 [thread overview]
Message-ID: <20191018141453.GO28442@gate.crashing.org> (raw)
In-Reply-To: <87mudyrz4s.fsf@oldenburg2.str.redhat.com>
On Fri, Oct 18, 2019 at 02:56:03PM +0200, Florian Weimer wrote:
> > You just need to have linker scripts that do not sabotage this :-)
>
> But it doesn't work on s390x if the section has a size that is not a
> multiple of 2 because all global symbols must have alignment 2 or more
> on that architecture (of course __alignof (symbol) may still say 1
> because *that* has to reflect C semantics).
How does the output section not get enough alignment? Is that the linker's
fault, or are the command-line flags wrong, or is it the linker script?
Does the *input* section have enough alignment?
Segher
next prev parent reply other threads:[~2019-10-18 14:14 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-16 13:19 Crash when cross compiling for ARM with GCC-8-2-0 and -ftree-loop-distribute-patterns Josef Wolf
2019-10-16 13:30 ` Matthias Pfaller
2019-10-17 8:10 ` Josef Wolf
2019-10-16 18:18 ` Martin Sebor
2019-10-17 11:40 ` Josef Wolf
2019-10-17 12:37 ` Matthias Pfaller
2019-10-17 14:10 ` Josef Wolf
2019-10-17 14:55 ` Richard Earnshaw (lists)
2019-10-18 9:00 ` Josef Wolf
2019-10-18 10:26 ` Richard Earnshaw (lists)
2019-10-18 12:10 ` Josef Wolf
2019-10-18 13:07 ` Segher Boessenkool
2019-10-18 13:40 ` Josef Wolf
2019-10-18 12:50 ` Josef Wolf
2019-10-18 14:04 ` Richard Earnshaw (lists)
2019-10-18 9:10 ` Propagating addresses from linker to the runtie (was: Re: Crash when cross compiling for ARM with GCC-8-2-0 and) -ftree-loop-distribute-patterns Josef Wolf
2019-10-18 9:15 ` Propagating addresses from linker to the runtie Florian Weimer
2019-10-18 9:50 ` Josef Wolf
2019-10-18 10:47 ` Florian Weimer
2019-10-18 12:51 ` Segher Boessenkool
2019-10-18 12:56 ` Florian Weimer
2019-10-18 14:14 ` Segher Boessenkool [this message]
2019-10-18 14:34 ` Florian Weimer
2019-10-18 13:30 ` Josef Wolf
2019-10-18 14:20 ` Segher Boessenkool
2019-10-18 13:10 ` Crash when cross compiling for ARM with GCC-8-2-0 and -ftree-loop-distribute-patterns Josef Wolf
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