patch-2.1.126 linux/include/asm-mips/signal.h

• Lines: 59
• Date: Tue Oct 20 13:52:54 1998
• Orig file: v2.1.125/linux/include/asm-mips/signal.h
• Orig date: Fri May 8 23:14:55 1998

diff -u --recursive --new-file v2.1.125/linux/include/asm-mips/signal.h linux/include/asm-mips/signal.h
@@ -1,13 +1,10 @@
-/*
- * Linux/MIPS specific definitions for signals.
+/* $Id: signal.h,v 1.4 1998/08/18 20:46:42 ralf Exp $
  *
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  *
- * Copyright (C) 1995, 1996, 1997 by Ralf Baechle
- *
- * $Id: signal.h,v 1.8 1998/05/01 01:36:11 ralf Exp $
+ * Copyright (C) 1995, 1996, 1997, 1998 by Ralf Baechle
  */
 #ifndef __ASM_MIPS_SIGNAL_H
 #define __ASM_MIPS_SIGNAL_H
@@ -66,7 +63,7 @@
 /*
  * SA_FLAGS values:
  *
- * SA_ONSTACK is not currently supported, but will allow sigaltstack(2).
+ * SA_ONSTACK indicates that a registered stack_t will be used.
  * SA_INTERRUPT is a no-op, but left due to historical reasons. Use the
  * SA_RESTART flag to get restarting signals (which were the default long ago)
  * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
@@ -85,8 +82,17 @@
 #define SA_NOCLDWAIT	0x00010000	/* Not supported yet */
 #define SA_NOCLDSTOP	0x00020000
 
-#define SA_NOMASK	SA_NODEFER	/* DANGER: was 0x02000000 */
-#define SA_ONESHOT	SA_RESETHAND	/* DANGER: was 0x04000000 */
+#define SA_NOMASK	SA_NODEFER
+#define SA_ONESHOT	SA_RESETHAND
+
+/* 
+ * sigaltstack controls
+ */
+#define SS_ONSTACK     1
+#define SS_DISABLE     2
+
+#define MINSIGSTKSZ    2048
+#define SIGSTKSZ       8192
 
 #ifdef __KERNEL__
 /*
@@ -129,6 +135,13 @@
 	struct sigaction sa;
 	void (*ka_restorer)(void);
 };
+
+/* IRIX compatible stack_t  */
+typedef struct sigaltstack {
+	void *ss_sp;
+	size_t ss_size;
+	int ss_flags;
+} stack_t;
 
 #ifdef __KERNEL__
 #include <asm/sigcontext.h>