MIPS support for libc.
Change-Id: I2864dea04b3faf2d919165dcaa600af5b16c41c8
Signed-off-by: Chris Dearman <chris@mips.com>
Signed-off-by: Raghu Gandham <raghu@mips.com>
diff --git a/libc/arch-mips/bionic/sigsetjmp.S b/libc/arch-mips/bionic/sigsetjmp.S
new file mode 100644
index 0000000..b05454c
--- /dev/null
+++ b/libc/arch-mips/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)