Add jmp_buf-macros.h for ColdFire.

This patch adds a jmp_buf-macros.h for ColdFire.  In conjunction with
a GCC patch to fix the libgcc build failure for ColdFire
<https://gcc.gnu.org/ml/gcc-patches/2018-01/msg02064.html> this
suffices to restore the build (tested with build-many-glibcs.py).  A
further patch will be needed for soft-float ColdFire (while the
function-calling ABI is the same for hard-float and soft-float
ColdFire, it turns out the glibc ABI is not - so another ColdFire
variant will be needed in build-many-glibcs.py), but I'll deal with
that separately.

Tested with build-many-glibcs.py (m68k-linux-gnu and
m68k-linux-gnu-coldfire).  (There's a localplt test failure for
coldfire; that's the only failure in the compilation part of the
testsuite.)

	* sysdeps/unix/sysv/linux/m68k/jmp_buf-macros.h: Move to ....
	* sysdeps/unix/sysv/linux/m68k/m680x0/jmp_buf-macros.h: ... here.
	* sysdeps/unix/sysv/linux/m68k/coldfire/jmp_buf-macros.h: New
	file.

1 files changed, 7 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 0f5f959547..002839213f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2018-01-24  Joseph Myers  <joseph@codesourcery.com>
+
+	* sysdeps/unix/sysv/linux/m68k/jmp_buf-macros.h: Move to ....
+	* sysdeps/unix/sysv/linux/m68k/m680x0/jmp_buf-macros.h: ... here.
+	* sysdeps/unix/sysv/linux/m68k/coldfire/jmp_buf-macros.h: New
+	file.
+
 2018-01-24  Szabolcs Nagy  <szabolcs.nagy@arm.com>
 
 	[BZ #22742]