Add support for the Analog Devices Blackfin mmuless processor

1 files changed, 53 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/bfin/bits/setjmp.h b/libc/sysdeps/linux/bfin/bits/setjmp.h
new file mode 100644
index 000000000..abb7db6a0
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/bits/setjmp.h
@@ -0,0 +1,53 @@
+/* Copyright (C) 1997, 1998 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* Define the machine-dependent type `jmp_buf'.  bfin version.  Lineo, Inc. 2001*/
+
+#ifndef _SETJMP_H
+# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
+#endif
+
+#ifndef _ASM
+/* Jump buffer contains r7-r4, p5-p3, fp, sp and pc.  Other registers are not saved.  */
+typedef struct
+{
+	unsigned long __pregs[6];
+	unsigned long fp;
+	unsigned long sp;
+	unsigned long __rregs[8];
+	unsigned long astat;
+	unsigned long __lcregs[2];
+	unsigned long a0w;
+	unsigned long a0x;
+	unsigned long a1w;
+	unsigned long a1x;
+	unsigned long __iregs[4];
+	unsigned long __mregs[4];
+	unsigned long __lregs[4];
+	unsigned long __bregs[4];
+	unsigned long pc;
+}__jmp_buf[1];
+
+#endif
+
+#define __JMP_BUF_SP	8
+
+/* Test if longjmp to JMPBUF would unwind the frame
+   containing a local variable at ADDRESS.  */
+#define _JMPBUF_UNWINDS(jmpbuf, address) \
+  ((void *) (address) < (void *) (jmpbuf)->__pregs[6])