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, 74 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/nios/bits/setjmp.h b/libc/sysdeps/linux/nios/bits/setjmp.h
new file mode 100644
index 000000000..33467f7d7
--- /dev/null
+++ b/libc/sysdeps/linux/nios/bits/setjmp.h
@@ -0,0 +1,74 @@
+/* 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'.  Nios version.  */
+
+#ifndef _SETJMP_H
+# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
+#endif
+
+#ifndef _ASM
+
+#include <signal.h>
+
+typedef struct
+  {
+    /* There are eight 4-byte local registers saved.  */
+    long int __lregs[8];
+
+    /* There are six 4-byte input registers saved.  */
+    long int __iregs[6];
+
+    /* The SP, return address to caller (also for longjmp)
+       and return address of caller are saved.  */
+    int *__sp;
+    int *__jmpret;
+    int *__callersret;
+
+  } __jmp_buf[1];
+
+/* 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)
+
+#else /* _ASM */
+
+#define jmpbuf_l0 0x00
+#define jmpbuf_l1 0x01
+#define jmpbuf_l2 0x02
+#define jmpbuf_l3 0x03
+#define jmpbuf_l4 0x04
+#define jmpbuf_l5 0x05
+#define jmpbuf_l6 0x06
+#define jmpbuf_l7 0x07
+
+#define jmpbuf_i0 0x08
+#define jmpbuf_i1 0x09
+#define jmpbuf_i2 0x0a
+#define jmpbuf_i3 0x0b
+#define jmpbuf_i4 0x0c
+#define jmpbuf_i5 0x0d
+
+#define jmpbuf_sp 0x0e
+#define jmpbuf_jmpret 0x0f
+#define jmpbuf_callersret 0x10
+
+#endif /* _ASM */
+
+