From: Rob Landley <rob@landley.net>
To: musl@lists.openwall.com
Subject: Re: Re: libgcc --disable-shared test case
Date: Sat, 11 Jan 2014 16:04:25 -0600 [thread overview]
Message-ID: <52D1BFE9.6040703@landley.net> (raw)
In-Reply-To: <20140111215106.GV24286@brightrain.aerifal.cx>
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On 01/11/14 15:51, Rich Felker wrote:
> On Sat, Jan 11, 2014 at 11:40:32AM -0600, Rob Landley wrote:
>> Looks like my toolchain doesn't exhibit this behavior? (Not after I
>> hacked the hell out of the libgcc.a build, anyway...)
>
> What arch?
i686.
> I would expect this to show up on i386 but not x86_64,
> since the latter has native division and libgcc functions won't be
> needed. It could also be an issue of -O level if gcc decided to use
> long division instead of bitshift to implement /16.
It was -O2 because your email said -O2. Only thing that changed in the
command line(s) was the compiler binary path/name.
> Or it might be something completely different.
>
> If you could share the two versions of libfoo.so, a.out, and maybe
> even libgcc.a, I can probably figure out what's going on.
Tarball of the newly built stuff attached, the other stuff should be at
http://landley.net/simple-root-filesystem-i686.tar.bz2 (which isn't the
release version because I made sure this one _wasn't_ built from a stage
2 cross compiler. This is from an aboriginal build that didn't do a
stage 2 cross compiler, but built everything with the "simple" cross
compiler.)
> Rich
Rob
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next prev parent reply other threads:[~2014-01-11 22:04 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20131017060913.GA1957@brightrain.aerifal.cx>
2014-01-11 17:40 ` Rob Landley
2014-01-11 21:51 ` Rich Felker
2014-01-11 22:04 ` Rob Landley [this message]
2014-01-11 22:23 ` Rich Felker
2014-01-11 22:38 ` Rob Landley
2014-01-11 22:45 ` Rich Felker
2014-01-11 23:10 ` Rob Landley
2014-01-11 23:55 ` John Spencer
2014-01-12 2:35 ` Rob Landley
2014-01-12 9:54 ` John Spencer
2014-01-12 15:33 ` Rich Felker
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