2014-12-15 Stefan Wallentowitz <stefan.wallentowitz@tum.de>

        * README: Add details about or1k.
        * configure.in: Add or1k/or1knd
        * configure: Regenerated.
        * or1k/aclocal.m4: New file.
        * or1k/configure: Ditto.
        * or1k/Makefile.in: New file
        * or1k/configure.in: New file
        * or1k/crt0.S: New file
        * or1k/include/or1k-asm.h: New file

1 files changed, 83 insertions, 0 deletions

diff --git a/libgloss/or1k/include/or1k-asm.h b/libgloss/or1k/include/or1k-asm.h
new file mode 100644
index 000000000..c218c64fe
--- /dev/null
+++ b/libgloss/or1k/include/or1k-asm.h
@@ -0,0 +1,83 @@
+/* or1k-asm.h -- OR1K assembly helper macros
+
+   Copyright (c) 2014 OpenRISC Project Maintainers
+   Copyright (C) 2012-2014 Peter Gavin <pgavin@gmail.com>
+   All rights reserved.
+
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following condition
+   is met:
+
+   1. Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+
+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+   FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+   COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+   INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+   (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+   SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+   HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+   STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+   OF THE POSSIBILITY OF SUCH DAMAGE.
+
+   */
+
+#ifndef OR1K_ASM_H
+#define OR1K_ASM_H
+
+/* The purpose of the OR1K_INST macro is simply to protect the commas
+   embedded within an instruction from the C preprocessor.  An entire
+   instruction can be safely embedded within its arguments, including
+   an arbitrary number of commas, and it will be reproduced
+   exactly. */
+#define OR1K_INST(...) __VA_ARGS__
+
+/* OR1K_DELAYED takes two arguments which must be instructions.  They
+   should be wrapped in OR1K_INST if the instructions require commas.
+   The second argument should be a jump or branch instruction.  If we
+   are assembling the code in delay-slot mode (e.g., for the standard
+   OR1K) the first instruction will be emitted in the delay slot of
+   the second instruction.  In no-delay-slot mode they will be emitted
+   in order.  If we are using compat-delay mode, they will be emitted
+   in order, but an l.nop instruction will be emitted immediately
+   after. */
+
+/* OR1K_DELAYED_NOP takes a single argument, which should be a
+   branch/jump instruction.  In delay-slot or compat-delay modes, the
+   instruction will be emitted with an l.nop in its delay slot. In
+   no-delay mode, the instruction will be emitted by itself. */
+
+#if defined(__OR1K_NODELAY__)
+
+#define OR1K_DELAYED(a, b) a; b
+#define OR1K_DELAYED_NOP(a) a
+
+/* Go ahead and emit the .nodelay directive when in no-delay mode, so
+   that the flags are appropriately set in the binary. */
+.nodelay
+
+#elif defined(__OR1K_DELAY__)
+
+#define OR1K_DELAYED(a, b) b; a
+#define OR1K_DELAYED_NOP(a) a; l.nop
+
+#elif defined(__OR1K_DELAY_COMPAT__)
+
+#define OR1K_DELAYED(a, b) a; b; l.nop
+#define OR1K_DELAYED_NOP(a) a; l.nop
+
+#else
+
+#error One of __OR1K_NODELAY__, __OR1K_DELAY__, or __OR1K_DELAY_COMPAT__ must be defined
+
+#endif
+
+#define LOAD_SYMBOL_2_GPR(gpr,symbol)  \
+	.global symbol ;               \
+	l.movhi gpr, hi(symbol) ;      \
+	l.ori   gpr, gpr, lo(symbol)
+#endif