patch-1.3.48 linux/include/asm-mips/signal.h

• Lines: 135
• Date: Wed Dec 13 12:39:46 1995
• Orig file: v1.3.47/linux/include/asm-mips/signal.h
• Orig date: Wed Jan 18 08:54:13 1995

diff -u --recursive --new-file v1.3.47/linux/include/asm-mips/signal.h linux/include/asm-mips/signal.h
@@ -1,16 +1,126 @@
 #ifndef __ASM_MIPS_SIGNAL_H
 #define __ASM_MIPS_SIGNAL_H
 
-struct sigcontext_struct {
-	unsigned long	       sc_at, sc_v0, sc_v1, sc_a0, sc_a1, sc_a2, sc_a3;
-	unsigned long	sc_t0, sc_t1, sc_t2, sc_t3, sc_t4, sc_t5, sc_t6, sc_t7;
-	unsigned long	sc_s0, sc_s1, sc_s2, sc_s3, sc_s4, sc_s5, sc_s6, sc_s7;
-	unsigned long	sc_t8, sc_t9,               sc_gp, sc_sp, sc_fp, sc_ra;
+/*
+ * For now ...
+ */
+#include <linux/types.h>
+typedef __u64	sigset_t;
 
-	unsigned long	sc_epc;
-	unsigned long	sc_cause;
+#if 0
+/*
+ * This is what we should really use but the kernel can't handle
+ * a non-scalar type yet.  Since we use 64 signals only anyway we
+ * just use __u64 and pad another 64 bits in the kernel for now ...
+ */
+typedef struct {
+	unsigned int	sigbits[4];
+} sigset_t;
+#endif
 
-	unsigned long	oldmask;
+#define _NSIG		65
+#define NSIG		_NSIG
+
+/*
+ * For 1.3.0 Linux/MIPS changed the signal numbers to be compatible the ABI.
+ */
+#define SIGHUP		 1	/* Hangup (POSIX).  */
+#define SIGINT		 2	/* Interrupt (ANSI).  */
+#define SIGQUIT		 3	/* Quit (POSIX).  */
+#define SIGILL		 4	/* Illegal instruction (ANSI).  */
+#define SIGTRAP		 5	/* Trace trap (POSIX).  */
+#define SIGIOT		 6	/* IOT trap (4.2 BSD).  */
+#define SIGABRT		 SIGIOT	/* Abort (ANSI).  */
+#define SIGEMT		 7
+#define SIGFPE		 8	/* Floating-point exception (ANSI).  */
+#define SIGKILL		 9	/* Kill, unblockable (POSIX).  */
+#define SIGBUS		10	/* BUS error (4.2 BSD).  */
+#define SIGSEGV		11	/* Segmentation violation (ANSI).  */
+#define SIGSYS		12
+#define SIGPIPE		13	/* Broken pipe (POSIX).  */
+#define SIGALRM		14	/* Alarm clock (POSIX).  */
+#define SIGTERM		15	/* Termination (ANSI).  */
+#define SIGUSR1		16	/* User-defined signal 1 (POSIX).  */
+#define SIGUSR2		17	/* User-defined signal 2 (POSIX).  */
+#define SIGCHLD		18	/* Child status has changed (POSIX).  */
+#define SIGCLD		SIGCHLD	/* Same as SIGCHLD (System V).  */
+#define SIGPWR		19	/* Power failure restart (System V).  */
+#define SIGWINCH	20	/* Window size change (4.3 BSD, Sun).  */
+#define SIGURG		21	/* Urgent condition on socket (4.2 BSD).  */
+#define SIGIO		22	/* I/O now possible (4.2 BSD).  */
+#define SIGPOLL		SIGIO	/* Pollable event occured (System V).  */
+#define SIGSTOP		23	/* Stop, unblockable (POSIX).  */
+#define SIGTSTP		24	/* Keyboard stop (POSIX).  */
+#define SIGCONT		25	/* Continue (POSIX).  */
+#define SIGTTIN		26	/* Background read from tty (POSIX).  */
+#define SIGTTOU		27	/* Background write to tty (POSIX).  */
+#define SIGVTALRM	28	/* Virtual alarm clock (4.2 BSD).  */
+#define SIGPROF		29	/* Profiling alarm clock (4.2 BSD).  */
+#define SIGXCPU		30	/* CPU limit exceeded (4.2 BSD).  */
+#define SIGXFSZ		31	/* File size limit exceeded (4.2 BSD).  */
+
+/*
+ * 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)
+ */
+#define SA_STACK	0x1
+#define SA_ONSTACK	SA_STACK
+#define SA_RESTART	0x4
+#define SA_NOCLDSTOP	0x20000
+/* Non ABI signals */
+#define SA_INTERRUPT	0x01000000
+#define SA_NOMASK	0x02000000
+#define SA_ONESHOT	0x04000000
+
+#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.
+ */
+#define SA_PROBE SA_ONESHOT
+#define SA_SAMPLE_RANDOM SA_RESTART
+#endif
+
+#define SIG_BLOCK          1	/* for blocking signals */
+#define SIG_UNBLOCK        2	/* for unblocking signals */
+#define SIG_SETMASK        3	/* for setting the signal mask */
+
+/* Type of a signal handler.  */
+typedef void (*__sighandler_t)(int);
+
+/* Fake signal functions */
+#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 {
+	unsigned int	sa_flags;
+	__sighandler_t	sa_handler;
+	sigset_t	sa_mask;
+	/*
+	 * To keep the ABI structure size we have to fill a little gap ...
+	 */
+	unsigned int	sa_mask_pad[2];
+
+	/* Abi says here follows reserved int[2] */
+	void		(*sa_restorer)(void);
+#if __mips < 3
+	/*
+	 * For 32 bit code we have to pad struct sigaction to get
+	 * constant size for the ABI
+	 */
+	int		pad0[1];	/* reserved */
+#endif
 };
+
+#ifdef __KERNEL__
+#include <asm/sigcontext.h>
+#endif
 
 #endif /* __ASM_MIPS_SIGNAL_H */