[MicroBlaze]: Move MicroBlaze from ports to sysdeps.

2014-02-17  David Holsgrove <david.holsgrove@xilinx.com>

        * sysdeps/microblaze: Move directory from ports/sysdeps/microblaze.
        * sysdeps/unix/sysv/linux/microblaze: Move directory from
          ports/sysdeps/unix/sysv/linux/microblaze.
        * README: Add missing listing for microblaze*-*-linux-gnu.

Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>

1 files changed, 75 insertions, 0 deletions

diff --git a/sysdeps/microblaze/setjmp.S b/sysdeps/microblaze/setjmp.S
new file mode 100644
index 0000000000..ab501ae549
--- /dev/null
+++ b/sysdeps/microblaze/setjmp.S
@@ -0,0 +1,75 @@
+/* Copyright (C) 1997-2014 Free Software Foundation, Inc.
+
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public License as
+   published by the Free Software Foundation; either version 2.1 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sysdep.h>
+
+/* This source produces 3 functions:
+   __sigsetjmp (jmpbuf,savemask)
+   setjmp (jmpbuf) - equivalent to __sigsetjump (jmpbuf, 1)
+   _setjmp (jmpbuf) - equivalent to __sigsetjump (jmpbuf, 0)
+*/
+
+#ifndef setjmp_name
+# define setjmp_name __sigsetjmp
+# define SET_MASK_ARG
+#else
+# define SET_MASK_ARG    addik r6,r0,SAVEMASK
+#endif
+
+ENTRY (setjmp_name)
+    swi   r1,r5,0
+    swi   r2,r5,4
+    swi   r13,r5,8
+    swi   r14,r5,12
+    swi   r15,r5,16
+    swi   r16,r5,20
+    swi   r17,r5,24
+    swi   r18,r5,28
+    swi   r19,r5,32
+    swi   r20,r5,36
+    swi   r21,r5,40
+    swi   r22,r5,44
+    swi   r23,r5,48
+    swi   r24,r5,52
+    swi   r25,r5,56
+    swi   r26,r5,60
+    swi   r27,r5,64
+    swi   r28,r5,68
+    swi   r29,r5,72
+    swi   r30,r5,76
+    swi   r31,r5,80
+
+    SET_MASK_ARG
+
+    /* Make a tail call to __sigjmp_save; it takes the same args.  */
+#ifdef	PIC
+    /* We cannot use the PLT, because it requires that r20 be set, but
+       we can't save and restore our caller's value.  Instead, we do an
+       indirect jump through the GOT, using the temporary register
+       %ecx, which is call-clobbered.  */
+    mfs   r12,rpc
+    addik r12,r12,_GLOBAL_OFFSET_TABLE_+8
+    lwi   r12,r12,__sigjmp_save@GOT
+    brad  r12
+#else
+    brid  __sigjmp_save
+#endif
+    nop
+END (setjmp_name)
+
+libc_hidden_def (setjmp_name)