Initial commit

1 files changed, 25 insertions, 0 deletions

diff --git a/unix/hlib/libc/setjmp.h b/unix/hlib/libc/setjmp.h
new file mode 100644
index 00000000..a92d6b47
--- /dev/null
+++ b/unix/hlib/libc/setjmp.h
@@ -0,0 +1,25 @@
+/* SETJMP, LONGJMP -- Non local goto.  Requires libc.h and knames.h.
+ * Note that jmp_buf must be at least one int larger than necessary to
+ */
+#ifndef D_libc
+#ifndef import_libc
+#include "libc.h"
+#endif
+#ifndef import_knames
+#include "knames.h"
+#endif
+#endif
+
+typedef	int	jmp_buf[LEN_JUMPBUF];
+static	int	u_jmpstat;
+
+#define	setjmp(e)	(ZSVJMP((e),&u_jmpstat),u_jmpstat)
+#define	longjmp(e,v)	(u_jmpstat=(v),ZDOJMP((e),&u_jmpstat))
+
+/* The following is necessary to prevent to prevent the optimizer from
+ * doing unwise things with setjmp on a Sun-4.
+ */
+extern	int zsvjmp_();
+#pragma unknown_control_flow(zsvjmp_)
+
+#define	D_setjmp