Minimal libc for sparc64.

Reviewed by:	obrien

1 files changed, 75 insertions, 0 deletions

diff --git a/lib/libc/sparc64/sys/sbrk.S b/lib/libc/sparc64/sys/sbrk.S
new file mode 100644
index 0000000..211d54d
--- /dev/null
+++ b/lib/libc/sparc64/sys/sbrk.S
@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This software was developed by the Computer Systems Engineering group
+ * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
+ * contributed to Berkeley.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University 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 THE REGENTS 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 REGENTS 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.
+ *
+ * from: Header: brk.s,v 1.3 92/06/25 12:56:05 mccanne Exp
+ */
+
+#if defined(SYSLIBC_SCCS) && !defined(lint)
+#if 0
+	.asciz "@(#)sbrk.s	8.1 (Berkeley) 6/4/93"
+#else
+	RCSID("$NetBSD: sbrk.S,v 1.7 2000/07/25 15:14:46 mycroft Exp $")
+#endif
+#endif /* SYSLIBC_SCCS and not lint */
+
+#if defined(SYSLIBC_RCS) && !defined(lint)
+	.text
+	.asciz "$FreeBSD$"
+#endif /* SYSLIBC_RCS and not lint */
+
+#include "SYS.h"
+
+	.data
+	.globl	HIDENAME(curbrk)
+	.globl	HIDENAME(minbrk)
+HIDENAME(curbrk):
+	.xword	CNAME(_end)
+HIDENAME(minbrk):
+	.xword	CNAME(_end)
+
+_SYSENTRY(sbrk)
+	PIC_PROLOGUE(%o3, %o2)
+	SET(HIDENAME(curbrk), %o2, %o3)
+	ldx	[%o3], %o4
+	add	%o4, %o0, %o5
+	mov	%o5, %o0
+	mov	SYS_break, %g1
+	ta	%xcc, ST_SYSCALL
+	bcc,a,pt %xcc, 1f
+	 mov	%o4, %o0
+	ERROR()
+1:	retl
+	 stx	%o5, [%o3]