Re: [patch] Implement Ada support for DragonFly, improve it for FreeBSD

[Eric Botcazou <ebotcazou@adacore.com>]

> This patch set is a subset of the GNAT patches I've maintained
> separately for a few years.  I have limited it adding support for
> x86-64-*-dragonfly* and improving support for i[34567]86-*-freebsd and
> x86_64-*-freebsd*.

Thanks for posting it.

> I've added the attached patch to the gcc trunk as it was on May 29,
> built GNAT and ran the testsuite.  The results are linked here:
> 
> 1. http://leaf.dragonflybsd.org/~marino/freebsd/dfly64.concise.log.txt
> 2. http://leaf.dragonflybsd.org/~marino/freebsd/fbsd64.concise.log.txt
> 3. http://leaf.dragonflybsd.org/~marino/freebsd/fbsd32.concise.log.txt
> 
> There is one regression in the gnat.dg tests on all platforms, but I
> believe this is caused by recent commits to GNAT and not by these patches.

Right.

> Note 1)  All TOOL_TARGET_PAIRS in gcc/ada/gcc-interface/Makefile.in
> should be removed for most (if not all) platforms as they were moved to
> gnattools/configure and are now no-ops.  However, for this patch set I
> only removed them for FreeBSD.

They are actually used if you configure with --disable-libada so should be 
preserved.  You don't need to add new ones though.

> Note 2) I removed reference to FreeBSD 6 and earlier.  These platforms
> have been EOL for years (FreeBSD 8 is EOL in 4 weeks)
> 
> Note 3) FreeBSD should have switched to use errno years ago, this patch
> does that now.
> 
> Note 4) For all BSD except DragonFly (which doesn't support i386
> anymore), the GCC_UNWINDER is specified for i386 platforms.  It wasn't
> specified before.
> 
> Note 5) All the ce/cxa/cxg tests that failed on i386-FreeBSD are related
> to the 53-bit float mantissa issue on FreeBSD.  This is resolved by my
> GNAT-AUX repository changes so the tests pass without compromising other
> compilers, but those patches are out of scope of this set.

I'm not a specialist of FreeBSD so Thomas is Cced.  The original message is:
  https://gcc.gnu.org/ml/gcc-patches/2015-05/msg02830.html

> copy of patch:
> http://leaf.dragonflybsd.org/~marino/freebsd/gnat-dragonfly-support.diff
> copy of suggested commit message:
> http://leaf.dragonflybsd.org/~marino/freebsd/gnat-dragonfly-support.msg.txt
> (both attached to this email)

This looks good to me modulo the TOOL_TARGET_PAIRS thing.  But ChangeLog lines 
must all start with a capital letter and end with a period.

Please leave a couple of more days for Thomas or Arno to comment though.

-- 
Eric Botcazou