Initial source

1 files changed, 58 insertions, 0 deletions

diff --git a/i386/include/mach/setjmp.h b/i386/include/mach/setjmp.h
new file mode 100644
index 0000000..6ea42c8
--- /dev/null
+++ b/i386/include/mach/setjmp.h
@@ -0,0 +1,58 @@
+/* 
+ * Mach Operating System
+ * Copyright (c) 1993 Carnegie Mellon University
+ * All Rights Reserved.
+ * 
+ * Permission to use, copy, modify and distribute this software and its
+ * documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ * 
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
+ * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ * 
+ * Carnegie Mellon requests users of this software to return to
+ * 
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ * 
+ * any improvements or extensions that they make and grant Carnegie Mellon
+ * the rights to redistribute these changes.
+ */
+/*
+ * Setjmp/longjmp buffer for i386.
+ */
+#ifndef _MACH_SETJMP_H_PROCESSED_
+#define _MACH_SETJMP_H_PROCESSED_ 1
+
+/* XXX prefix these with mach_ so they don't interfere with higher layers?
+   This stuff is included by cthreads.h.  */
+
+/* XXX The original definition of jmp_buf[] causes problems using
+ * libthreads when linked against NetBSD and FreeBSD's libc because
+ * it's too small.  When cthreads calls _setjmp, it gets the libc
+ * version which saves more state than it's expecting and overwrites
+ * important cthread data. =( This definition is big enough for all
+ * known systems so far (Linux's is 6, FreeBSD's is 9 and NetBSD's is
+ * 10).  This file really shouldn't even be here, since we should be
+ * using libc's setjmp.h.  
+ */
+#if 0
+#define _JBLEN 6
+#else
+#define _JBLEN 10
+#endif
+
+typedef int jmp_buf[_JBLEN];		/* ebx, esi, edi, ebp, esp, eip */
+
+
+extern int setjmp (jmp_buf);
+extern void longjmp (jmp_buf, int);
+extern int _setjmp (jmp_buf);
+extern void _longjmp (jmp_buf, int);
+
+#endif /* _MACH_SETJMP_H_PROCESSED_ */