2 files changed, 38 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/i386/jmpbuf-offsets.h b/libc/sysdeps/linux/i386/jmpbuf-offsets.h
new file mode 100644
index 000000000..c53d539ed
--- /dev/null
+++ b/libc/sysdeps/linux/i386/jmpbuf-offsets.h
@@ -0,0 +1,26 @@
+/* Private macros for accessing __jmp_buf contents.  i386 version.
+   Copyright (C) 2006 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.  */
+
+#define JB_BX	0
+#define JB_SI	1
+#define JB_DI	2
+#define JB_BP	3
+#define JB_SP	4
+#define JB_PC	5
+#define JB_SIZE 24
diff --git a/libc/sysdeps/linux/i386/jmpbuf-unwind.h b/libc/sysdeps/linux/i386/jmpbuf-unwind.h
new file mode 100644
index 000000000..8b75dce5c
--- /dev/null
+++ b/libc/sysdeps/linux/i386/jmpbuf-unwind.h
@@ -0,0 +1,12 @@
+/*
+ * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+#include <setjmp.h>
+#include <jmpbuf-offsets.h>
+
+/* Test if longjmp to JMPBUF would unwind the frame
+   containing a local variable at ADDRESS.  */
+#define _JMPBUF_UNWINDS(jmpbuf, address) \
+  ((void *) (address) < (void *) (jmpbuf)[JB_SP])