setjmp on mips

diff --git a/include/grub/mips/setjmp.h b/include/grub/mips/setjmp.h
new file mode 100644 (file)
index 0000000..5e59855
--- /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 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..8ab6222c4e90991fa33c493e6b0f9f99c0602567 100644 (file)
--- 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