Pete Popov writes:

Hi Erik,

I'm not sure why the NIOS support is not in uClibc -- perhaps the patch
was rejected or never submitted? In any case, I'm playing with some NIOS
stuff and created this patch against 0.9.26. The work was done by
Microtronix. I'm not sure who else contributed to it. It would be great
to have the NIOS support available in uClibc so developers don't have to
go searching for these bits.

Pete

1 files changed, 67 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/nios2/bits/setjmp.h b/libc/sysdeps/linux/nios2/bits/setjmp.h
new file mode 100644
index 000000000..ea7699d09
--- /dev/null
+++ b/libc/sysdeps/linux/nios2/bits/setjmp.h
@@ -0,0 +1,67 @@
+/* Define the machine-dependent type `jmp_buf'.  Nios2 version.
+   Copyright (C) 1992,93,95,97,2000 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _SETJMP_H
+# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
+#endif
+
+#ifndef	_ASM
+typedef struct
+{
+    /* Callee-saved registers r16 through r23.  */
+    unsigned long __regs[8];
+
+    /* Program counter.  */
+    unsigned long __pc;
+
+    /* Stack pointer.  */
+    unsigned long __sp;
+
+    /* The frame pointer.  */
+    unsigned long __fp;
+
+    /* The global pointer.  */
+    unsigned long __gp;
+
+	/* floating point regs, if any */
+#if defined __HAVE_FPU__
+    unsigned long __fpregs[64];
+#endif	
+} __jmp_buf[1];
+
+#endif
+
+#define JB_REGS		0
+#define JB_PC		32
+#define JB_SP		36
+#define JB_FP		40
+#define JB_GP		44
+#define JB_FPREGS 	48
+
+#if defined __HAVE_FPU__
+# define JB_SIZE 304
+#else
+# define JB_SIZE 48
+#endif
+
+
+/* Test if longjmp to JMPBUF would unwind the frame
+   containing a local variable at ADDRESS.  */
+#define _JMPBUF_UNWINDS(jmpbuf, address) \
+  ((void *) (address) < (void*)(jmpbuf)->__sp)