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-rw-r--r--libc/ports/sysdeps/microblaze/setjmp.S75
1 files changed, 75 insertions, 0 deletions
diff --git a/libc/ports/sysdeps/microblaze/setjmp.S b/libc/ports/sysdeps/microblaze/setjmp.S
new file mode 100644
index 000000000..4a2bd22ed
--- /dev/null
+++ b/libc/ports/sysdeps/microblaze/setjmp.S
@@ -0,0 +1,75 @@
+/* Copyright (C) 1997-2013 Free Software Foundation, Inc.
+
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation; either version 2.1 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+
+/* This source produces 3 functions:
+ __sigsetjmp (jmpbuf,savemask)
+ setjmp (jmpbuf) - equivalent to __sigsetjump (jmpbuf, 1)
+ _setjmp (jmpbuf) - equivalent to __sigsetjump (jmpbuf, 0)
+*/
+
+#ifndef setjmp_name
+# define setjmp_name __sigsetjmp
+# define SET_MASK_ARG
+#else
+# define SET_MASK_ARG addik r6,r0,SAVEMASK
+#endif
+
+ENTRY (setjmp_name)
+ swi r1,r5,0
+ swi r2,r5,4
+ swi r13,r5,8
+ swi r14,r5,12
+ swi r15,r5,16
+ swi r16,r5,20
+ swi r17,r5,24
+ swi r18,r5,28
+ swi r19,r5,32
+ swi r20,r5,36
+ swi r21,r5,40
+ swi r22,r5,44
+ swi r23,r5,48
+ swi r24,r5,52
+ swi r25,r5,56
+ swi r26,r5,60
+ swi r27,r5,64
+ swi r28,r5,68
+ swi r29,r5,72
+ swi r30,r5,76
+ swi r31,r5,80
+
+ SET_MASK_ARG
+
+ /* Make a tail call to __sigjmp_save; it takes the same args. */
+#ifdef PIC
+ /* We cannot use the PLT, because it requires that r20 be set, but
+ we can't save and restore our caller's value. Instead, we do an
+ indirect jump through the GOT, using the temporary register
+ %ecx, which is call-clobbered. */
+ mfs r12,rpc
+ addik r12,r12,_GLOBAL_OFFSET_TABLE_+8
+ lwi r12,r12,__sigjmp_save@GOT
+ brad r12
+#else
+ brid __sigjmp_save
+#endif
+ nop
+END (setjmp_name)
+
+libc_hidden_def (setjmp_name)