Import of Linux/MIPS 2.1.14

1 files changed, 171 insertions, 5 deletions

diff --git a/include/asm-sparc/signal.h b/include/asm-sparc/signal.h
index 2e599e18d..2cc321d13 100644
--- a/include/asm-sparc/signal.h
+++ b/include/asm-sparc/signal.h
@@ -1,11 +1,177 @@
+/* $Id: signal.h,v 1.29 1996/10/27 08:55:45 davem Exp $ */
 #ifndef _ASMSPARC_SIGNAL_H
 #define _ASMSPARC_SIGNAL_H
 
-struct sigcontext_struct {
-	/*
-	 * Have to find out what SUNOS and Solaris do. This could
-	 * get real ugly. David S. Miller (davem@caip.rutgers.edu)
-	 */
+#include <asm/sigcontext.h>
+
+#ifdef __KERNEL__
+#ifndef __ASSEMBLY__
+#include <linux/personality.h>
+#endif
+#endif
+
+/* On the Sparc the signal handlers get passed a 'sub-signal' code
+ * for certain signal types, which we document here.
+ */
+#define _NSIG             32
+#define NSIG		_NSIG
+
+#define SIGHUP		 1
+#define SIGINT		 2
+#define SIGQUIT		 3
+#define SIGILL		 4
+#define    SUBSIG_STACK       0
+#define    SUBSIG_ILLINST     2
+#define    SUBSIG_PRIVINST    3
+#define    SUBSIG_BADTRAP(t)  (0x80 + (t))
+
+#define SIGTRAP		 5
+#define SIGABRT		 6
+#define SIGIOT		 6
+
+#define SIGEMT           7
+#define    SUBSIG_TAG    10
+
+#define SIGFPE		 8
+#define    SUBSIG_FPDISABLED     0x400
+#define    SUBSIG_FPERROR        0x404
+#define    SUBSIG_FPINTOVFL      0x001
+#define    SUBSIG_FPSTSIG        0x002
+#define    SUBSIG_IDIVZERO       0x014
+#define    SUBSIG_FPINEXACT      0x0c4
+#define    SUBSIG_FPDIVZERO      0x0c8
+#define    SUBSIG_FPUNFLOW       0x0cc
+#define    SUBSIG_FPOPERROR      0x0d0
+#define    SUBSIG_FPOVFLOW       0x0d4
+
+#define SIGKILL		 9
+#define SIGBUS          10
+#define    SUBSIG_BUSTIMEOUT    1
+#define    SUBSIG_ALIGNMENT     2
+#define    SUBSIG_MISCERROR     5
+
+#define SIGSEGV		11
+#define    SUBSIG_NOMAPPING     3
+#define    SUBSIG_PROTECTION    4
+#define    SUBSIG_SEGERROR      5
+
+#define SIGSYS		12
+
+#define SIGPIPE		13
+#define SIGALRM		14
+#define SIGTERM		15
+#define SIGURG          16
+
+/* SunOS values which deviate from the Linux/i386 ones */
+#define SIGSTOP		17
+#define SIGTSTP		18
+#define SIGCONT		19
+#define SIGCHLD		20
+#define SIGTTIN		21
+#define SIGTTOU		22
+#define SIGIO		23
+#define SIGPOLL		SIGIO   /* SysV name for SIGIO */
+#define SIGXCPU		24
+#define SIGXFSZ		25
+#define SIGVTALRM	26
+#define SIGPROF		27
+#define SIGWINCH	28
+#define SIGLOST		29
+#define SIGUSR1		30
+#define SIGUSR2		31
+
+#ifndef __ASSEMBLY__
+
+typedef unsigned long sigset_t;
+
+#ifdef __KERNEL__
+#include <asm/sigcontext.h>
+#endif
+
+/* A SunOS sigstack */
+struct sigstack {
+	char *the_stack;
+	int   cur_status;
 };
 
+/* Sigvec flags */
+#define SV_SSTACK    1     /* This signal handler should use sig-stack */
+#define SV_INTR      2     /* Sig return should not restart system call */
+#define SV_RESET     4     /* Set handler to SIG_DFL upon taken signal */
+#define SV_IGNCHILD  8     /* Do not send SIGCHLD */
+
+/*
+ * sa_flags values: SA_STACK is not currently supported, but will allow the
+ * usage of signal stacks by using the (now obsolete) sa_restorer field in
+ * the sigaction structure as a stack pointer. This is now possible due to
+ * the changes in signal handling. LBT 010493.
+ * 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_SHIRQ flag is for shared interrupt support on PCI and EISA.
+ */
+#define SA_NOCLDSTOP	SV_IGNCHILD
+#define SA_STACK	SV_SSTACK
+#define SA_RESTART	SV_INTR
+#define SA_ONESHOT	SV_RESET
+#define SA_INTERRUPT	0x10
+#define SA_NOMASK	0x20
+#define SA_SHIRQ	0x40
+
+#define SIG_BLOCK          0x01	/* for blocking signals */
+#define SIG_UNBLOCK        0x02	/* for unblocking signals */
+#define SIG_SETMASK        0x04	/* for setting the signal mask */
+
+#ifdef __KERNEL__
+/*
+ * These values of sa_flags are used only by the kernel as part of the
+ * irq handling routines.
+ *
+ * SA_INTERRUPT is also used by the irq handling routines.
+ *
+ * DJHR
+ * SA_STATIC_ALLOC is used for the SPARC system to indicate that this
+ * interrupt handler's irq structure should be statically allocated
+ * by the request_irq routine.
+ * The alternative is that arch/sparc/kernel/irq.c has carnal knowledge
+ * of interrupt usage and that sucks. Also without a flag like this
+ * it may be possible for the free_irq routine to attempt to free
+ * statically allocated data.. which is NOT GOOD.
+ *
+ */
+#define SA_PROBE SA_ONESHOT
+#define SA_SAMPLE_RANDOM SA_RESTART
+#define SA_STATIC_ALLOC		0x80
+#endif
+
+/* Type of a signal handler.  */
+#ifdef __KERNEL__
+typedef void (*__sighandler_t)(int, int, struct sigcontext *, char *);
+#else
+typedef void (*__sighandler_t)(int);
 #endif
+
+#define SIG_DFL	((__sighandler_t)0)	/* default signal handling */
+#define SIG_IGN	((__sighandler_t)1)	/* ignore signal */
+#define SIG_ERR	((__sighandler_t)-1)	/* error return from signal */
+
+struct sigaction {
+	__sighandler_t  sa_handler;
+	sigset_t        sa_mask;
+	unsigned long   sa_flags;
+	void (*sa_restorer) (void);     /* not used by Linux/SPARC yet */
+};
+
+#ifdef __KERNEL__
+
+/* use the following macro to get the size of a sigaction struct
+   when copying to/from userland */
+#define SIGACTION_SIZE(personality) (((personality) & PER_BSD)?\
+				     sizeof(struct sigaction)-sizeof(void *):\
+				     sizeof(struct sigaction))
+
+#endif /* __KERNEL__ */
+
+
+#endif /* !(__ASSEMBLY__) */
+
+#endif /* !(_ASMSPARC_SIGNAL_H) */