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Re: [PATCH] enable fdpic targets/emulations for sh*-*-linux*
- From: Alan Modra <amodra at gmail dot com>
- To: Kaz Kojima <kkojima at rr dot iij4u dot or dot jp>
- Cc: dalias at libc dot org, binutils at sourceware dot org
- Date: Thu, 1 Oct 2015 10:11:07 +0930
- Subject: Re: [PATCH] enable fdpic targets/emulations for sh*-*-linux*
- Authentication-results: sourceware.org; auth=none
- References: <20150929235801 dot GA8408 at brightrain dot aerifal dot cx> <20150930 dot 143924 dot 179845457 dot kkojima at rr dot iij4u dot or dot jp>
On Wed, Sep 30, 2015 at 02:39:24PM +0900, Kaz Kojima wrote:
> Rich Felker <dalias@libc.org> wrote:
> > Currently sh/fdpic support in binutils is only enabled for
> > sh{1,2,}-*-uclinux*. This patch adds it to the sh*-*-linux* targets
> > which are what I'm using for musl's j2/sh2 support. sh2eb-*-linux-musl
> > toolchains treat the target as regular Linux (modulo no fork and
> > resticted mmap), produce binaries which are forward-compatible with
> > sh3/4 Linux, and do not use any of the legacy flat binary stuff
> > associated with *-uclinux* tuples, so it makes sense to use a *-linux*
> > tuple.
>
> The patch is OK. I've committed it as two separated patches
> which have independent ChangeLog entries below, because bfd
> and ld have their own ChangeLog files. Thanks!
>
> Regards,
> kaz
> --
> [bfd]
> 2015-09-30 Rich Felker <dalias@libc.org>
>
> * config.bfd (targ_selvecs): Add fdpic and misc targets
> for sh*-*-linux*.
>
> [ld]
> 2015-09-30 Rich Felker <dalias@libc.org>
>
> * configure.tgt (targ_extra_emuls): Add fdpic and misc
> emulations to sh*-*-linux* targets.
This patch results in an enormous number of testsuite failures when
building an x86_64-linux to sh-linux cross. Here is an example:
.../nm-new: tmpdir/bintest.o: File format is ambiguous
.../nm-new: Matching formats: elf32-sh-linux elf32-shl
--
Alan Modra
Australia Development Lab, IBM