[Xenial] SRU: Revert x86/vdso linker changes from #1830890 as this causes glibc 2.29-0ubuntu3 FTBFS on eoan

[alex.murray at canonical.com]

From: Alex Murray <alex.murray at canonical.com>

[Impact]
As reported in #1833067 and
https://bugs.launchpad.net/ubuntu/+source/glibc/+bug/1830890/comments/7
some glibc testcases are still regressing on i386 after applying both the
following commits:

commit 379d98ddf41344273d9718556f761420f4dc80b3
Author: Alistair Strachan <astrachan at google.com>
Date: Fri Aug 3 10:39:31 2018 -0700

    x86: vdso: Use $LD instead of $CC to link

commit cd01544a268ad8ee5b1dfe42c4393f1095f86879
Author: Alistair Strachan <astrachan at google.com>
Date: Fri Dec 14 14:36:37 2018 -0800

    x86/vdso: Pass --eh-frame-hdr to the linker

[Fix]
Revert both these patches to restore the original behaviour.

[Test]
ADT tests for glibc.

[Regression Potential]
Low. This restores the status quo before the original change to
vdso/x86/Makefile to restore the original linker behaviour.

Alex Murray (2):
  Revert "x86/vdso: Pass --eh-frame-hdr to the linker"
  Revert "x86: vdso: Use $LD instead of $CC to link"

 arch/x86/entry/vdso/Makefile | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

-- 
2.17.1