2013-05-06 Sandra Loosemore <sandra@codesourcery.com>

        * configure.host (machine_dir, sys_dir, syscall_dir, newlib_cflags):
        Add settings for nios2*.
        * libc/include/machine/ieeefp.h (IEEE_BIG_ENDIAN, IEEE_LITTLE_ENDIAN):
        Likewise.
        * libc/include/machine/setjmp.h (JBLEN, JBTYPE): Likewise.
        * libc/machine/configure.in: Add nios2 subdir.
        * libc/machine/configure: Regenerated.
        * libc/machine/nios2/Makefile.am: New.
        * libc/machine/nios2/Makefile.in: New (autogenerated).
        * libc/machine/nios2/aclocal.m4: New (copied from mips version).
        * libc/machine/nios2/configure.in: New.
        * libc/machine/nios2/configure: New (autogenerated).
        * libc/machine/nios2/setjmp.s: New.

1 files changed, 82 insertions, 0 deletions

diff --git a/newlib/libc/machine/nios2/setjmp.s b/newlib/libc/machine/nios2/setjmp.s
new file mode 100644
index 000000000..1545eaba8
--- /dev/null
+++ b/newlib/libc/machine/nios2/setjmp.s
@@ -0,0 +1,82 @@
+;/*
+; * C library -- _setjmp, _longjmp
+; *
+; *      _longjmp(a,v)
+; * will generate a "return(v?v:1)" from
+; * the last call to
+; *      _setjmp(a)
+; * by unwinding the call stack.
+; * The previous signal state is NOT restored.
+; *
+; *
+; * Copyright (c) 2003 Altera Corporation
+; * All rights reserved.
+; * 
+; * Redistribution and use in source and binary forms, with or without
+; * modification, are permitted provided that the following conditions
+; * are met:
+; * 
+; *    o Redistributions of source code must retain the above copyright
+; *      notice, this list of conditions and the following disclaimer. 
+; *    o Redistributions in binary form must reproduce the above copyright
+; *      notice, this list of conditions and the following disclaimer in the 
+; *      documentation and/or other materials provided with the distribution. 
+; *    o Neither the name of Altera Corporation nor the names of its 
+; *      contributors may be used to endorse or promote products derived from
+; *      this software without specific prior written permission. 
+; *  
+; * THIS SOFTWARE IS PROVIDED BY ALTERA CORPORATION, THE COPYRIGHT HOLDER,
+; * AND ITS 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.  
+; */
+
+	.section	.text
+	.align	3
+	.globl	setjmp
+	.type	setjmp,@function
+	.globl	longjmp
+	.type	longjmp,@function
+
+
+setjmp:
+	stw	r16, 0(r4)
+	stw	r17, 4(r4)
+	stw	r18, 8(r4)
+	stw	r19, 12(r4)
+	stw	r20, 16(r4)
+	stw	r21, 20(r4)
+	stw	r22, 24(r4)
+	stw	r23, 28(r4)
+	stw	gp, 32(r4)
+	stw	sp, 36(r4)
+	stw	fp, 40(r4)
+	stw	ra, 44(r4)
+	mov	r2, zero
+	ret
+
+longjmp:
+	ldw	r16, 0(r4)
+	ldw	r17, 4(r4)
+	ldw	r18, 8(r4)
+	ldw	r19, 12(r4)
+	ldw	r20, 16(r4)
+	ldw	r21, 20(r4)
+	ldw	r22, 24(r4)
+	ldw	r23, 28(r4)
+	ldw	gp, 32(r4)
+	ldw	sp, 36(r4)
+	ldw	fp, 40(r4)
+	ldw	ra, 44(r4)
+	mov	r2, r5
+	bne	r2, zero, 1f
+	movi	r2, 1	
+1:
+	ret