From b66948bd8852092def61b4e7c07e680dc10e2680 Mon Sep 17 00:00:00 2001
From: Vladimir 'phcoder' Serbinenko <phcoder@gmail.com>
Date: Sat, 12 Dec 2009 02:33:41 +0100
Subject: [PATCH] setjmp on mips

---
 include/grub/mips/setjmp.h | 27 ++++++++++++++++
 lib/mips/setjmp.S          | 65 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 92 insertions(+)
 create mode 100644 include/grub/mips/setjmp.h

diff --git a/include/grub/mips/setjmp.h b/include/grub/mips/setjmp.h
new file mode 100644
index 000000000..5e5985586
--- /dev/null
+++ b/include/grub/mips/setjmp.h
@@ -0,0 +1,27 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2002,2004,2006,2007,2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef GRUB_SETJMP_CPU_HEADER
+#define GRUB_SETJMP_CPU_HEADER	1
+
+typedef unsigned long grub_jmp_buf[11];
+
+int grub_setjmp (grub_jmp_buf env) __attribute__ ((returns_twice));
+void grub_longjmp (grub_jmp_buf env, int val) __attribute__ ((noreturn));
+
+#endif /* ! GRUB_SETJMP_CPU_HEADER */
diff --git a/lib/mips/setjmp.S b/lib/mips/setjmp.S
index e69de29bb..8ab6222c4 100644
--- a/lib/mips/setjmp.S
+++ b/lib/mips/setjmp.S
@@ -0,0 +1,65 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2003,2007,2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/symbol.h>
+
+	.file	"setjmp.S"
+
+	.text
+
+/*
+ * int grub_setjmp (grub_jmp_buf env)
+ */
+FUNCTION(grub_setjmp)
+	sw $s0, 0($a0)
+	sw $s1, 4($a0)
+	sw $s2, 8($a0)
+	sw $s3, 12($a0)
+	sw $s4, 16($a0)
+	sw $s5, 20($a0)
+	sw $s6, 24($a0)
+	sw $s7, 28($a0)
+	sw $s8, 32($a0)
+	sw $gp, 36($a0)
+	sw $sp, 40($a0)
+	sw $ra, 44($a0)
+	move $v0, $zero
+	move $v1, $zero
+	jr $ra
+/*
+ * int grub_longjmp (grub_jmp_buf env, int val)
+ */
+FUNCTION(grub_longjmp)
+	lw $s0, 0($a0)
+	lw $s1, 4($a0)
+	lw $s2, 8($a0)
+	lw $s3, 12($a0)
+	lw $s4, 16($a0)
+	lw $s5, 20($a0)
+	lw $s6, 24($a0)
+	lw $s7, 28($a0)
+	lw $s8, 32($a0)
+	lw $gp, 36($a0)
+	lw $sp, 40($a0)
+	lw $ra, 44($a0)
+	move $v0, $a1
+	bne  $v0, $zero, 1f
+	addiu $v0, $v0, 1
+1:	
+	move $v1, $zero
+	jr $ra