[MIPS64] libc/libm support

libc/libm support for MIPS64 targets

Change-Id: I8271941d418612a286be55495f0e95822f90004f
Signed-off-by: Chris Dearman <chris.dearman@imgtec.com>
Signed-off-by: Raghu Gandham <raghu.gandham@imgtec.com>

1 files changed, 77 insertions, 0 deletions

diff --git a/libc/arch-mips64/bionic/sigsetjmp.S b/libc/arch-mips64/bionic/sigsetjmp.S
new file mode 100644
index 0000000..b05454c
--- /dev/null
+++ b/libc/arch-mips64/bionic/sigsetjmp.S
@@ -0,0 +1,77 @@
+/* $OpenBSD: sigsetjmp.S,v 1.5 2005/08/07 16:40:15 espie Exp $ */
+/*-
+ * Copyright (c) 1991, 1993, 1995,
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Havard Eidnes.
+ *
+ * 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. 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.
+ */
+
+#include <machine/asm.h>
+#include <machine/regnum.h>
+#include <machine/setjmp.h>
+
+/*
+ * trampolines for sigsetjmp and  siglongjmp save and restore mask.
+ *
+ */
+FRAMESZ= MKFSIZ(1,1)
+GPOFF= FRAMESZ-2*REGSZ
+
+LEAF(sigsetjmp, FRAMESZ)
+	PTR_SUBU sp, FRAMESZ
+	SETUP_GP64(GPOFF, sigsetjmp)
+	.set	reorder
+	REG_S	a1, (_JBLEN*REGSZ)(a0)		# save "savemask"
+	bne	a1, 0x0, 1f			# do saving of signal mask?
+	LA	t9, _setjmp
+	RESTORE_GP64
+	PTR_ADDU sp, FRAMESZ
+	jr t9
+
+1:	LA	t9, setjmp
+	RESTORE_GP64
+	PTR_ADDU sp, FRAMESZ
+	jr t9
+END(sigsetjmp)
+
+LEAF(siglongjmp, FRAMESZ)
+	PTR_SUBU sp, FRAMESZ
+	SETUP_GP64(GPOFF, siglongjmp)
+	.set	reorder
+	REG_L	t0, (_JBLEN*REGSZ)(a0)		# get "savemask"
+	bne	t0, 0x0, 1f			# restore signal mask?
+	LA	t9, _longjmp
+	RESTORE_GP64
+	PTR_ADDU sp, FRAMESZ
+	jr	t9
+1:
+	LA	t9, longjmp
+	RESTORE_GP64
+	PTR_ADDU sp, FRAMESZ
+	jr	t9
+END(siglongjmp)