[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, 85 insertions, 0 deletions

diff --git a/sysdeps/microblaze/sysdep.h b/sysdeps/microblaze/sysdep.h
new file mode 100644
index 0000000000..a7c9e79a4c
--- /dev/null
+++ b/sysdeps/microblaze/sysdep.h
@@ -0,0 +1,85 @@
+/* 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 <sysdeps/generic/sysdep.h>
+
+#ifdef  __ASSEMBLER__
+
+/* Syntactic details of assembler.  */
+
+# define ALIGNARG(log2) log2
+# define ASM_SIZE_DIRECTIVE(name) .size name,.-name
+
+/* Define an entry point visible from C.  */
+# define ENTRY(name)                          \
+  .globl C_SYMBOL_NAME(name);                 \
+  .type C_SYMBOL_NAME(name),@function;        \
+  .align ALIGNARG(2);                         \
+  C_LABEL(name)                               \
+  CALL_MCOUNT
+
+# undef END
+# define END(name) ASM_SIZE_DIRECTIVE(name)
+
+
+/* If compiled for profiling, call `_mcount' at the start of each function.  */
+# ifdef  PROF
+/* The mcount code relies on a normal frame pointer being on the stack
+   to locate our caller, so push one just for its benefit.  */
+#  define CALL_MCOUNT                         \
+   addik r1,r1,-4;                            \
+   swi r15,r1,0;                              \
+   brlid r15,JUMPTARGET(mcount);              \
+   nop;                                       \
+   lwi r15,r1,0;                              \
+   addik r1,r1,4;
+# else
+#  define CALL_MCOUNT        /* Do nothing.  */
+# endif
+
+/* Since C identifiers are not normally prefixed with an underscore
+   on this system, the asm identifier `syscall_error' intrudes on the
+   C name space.  Make sure we use an innocuous name.  */
+# define syscall_error   __syscall_error
+# define mcount      _mcount
+
+# define PSEUDO(name, syscall_name, args)     \
+  .globl syscall_error;                       \
+  ENTRY (name)                                \
+    DO_CALL (syscall_name, args);
+
+# define ret                                  \
+  rtsd r15,8; nop;
+
+# undef PSEUDO_END
+# define PSEUDO_END(name)                     \
+  END (name)
+
+# undef JUMPTARGET
+# ifdef PIC
+#  define JUMPTARGET(name)   name##@PLTPC
+# else
+#  define JUMPTARGET(name)   name
+# endif
+
+/* Local label name for asm code.  */
+# ifndef L
+#  define L(name) $L##name
+# endif
+
+# endif  /* __ASSEMBLER__  */