Merge to Fedora kernel-2.6.18-1.2255_FC5-vs2.0.2.2-rc9 patched with stable patch...

[linux-2.6.git] / include / asm-i386 / signal.h

diff --git a/include/asm-i386/signal.h b/include/asm-i386/signal.h
index de3da5b..c3e8ade 100644 (file)
--- a/include/asm-i386/signal.h
+++ b/include/asm-i386/signal.h
@@ -2,7 +2,6 @@
 #define _ASMi386_SIGNAL_H
 
 #include <linux/types.h>
-#include <linux/linkage.h>
 #include <linux/time.h>
 #include <linux/compiler.h>
 
@@ -10,6 +9,9 @@
 struct siginfo;
 
 #ifdef __KERNEL__
+
+#include <linux/linkage.h>
+
 /* Most things should be clean enough to redefine this at will, if care
    is taken to make libc match.  */
 
@@ -77,7 +79,6 @@ typedef unsigned long sigset_t;
  * SA_FLAGS values:
  *
  * 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.
  * SA_RESETHAND clears the handler when the signal is delivered.
@@ -97,7 +98,6 @@ typedef unsigned long sigset_t;
 
 #define SA_NOMASK      SA_NODEFER
 #define SA_ONESHOT     SA_RESETHAND
-#define SA_INTERRUPT   0x20000000 /* dummy -- ignored */
 
 #define SA_RESTORER    0x04000000
 
@@ -110,34 +110,7 @@ typedef unsigned long sigset_t;
 #define MINSIGSTKSZ    2048
 #define SIGSTKSZ       8192
 
-#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.
- * SA_SHIRQ is for shared interrupt support on PCI and EISA.
- */
-#define SA_PROBE               SA_ONESHOT
-#define SA_SAMPLE_RANDOM       SA_RESTART
-#define SA_SHIRQ               0x04000000
-#endif
-
-#define SIG_BLOCK          0   /* for blocking signals */
-#define SIG_UNBLOCK        1   /* for unblocking signals */
-#define SIG_SETMASK        2   /* for setting the signal mask */
-
-/* Type of a signal handler.  */
-typedef void __signalfn_t(int);
-typedef __signalfn_t __user *__sighandler_t;
-
-typedef void __restorefn_t(void);
-typedef __restorefn_t __user *__sigrestore_t;
-
-#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 */
+#include <asm-generic/signal.h>
 
 #ifdef __KERNEL__
 struct old_sigaction {
@@ -186,14 +159,37 @@ typedef struct sigaltstack {
 
 #define __HAVE_ARCH_SIG_BITOPS
 
-static __inline__ void sigaddset(sigset_t *set, int _sig)
+#define sigaddset(set,sig)                 \
+       (__builtin_constant_p(sig) ?       \
+       __const_sigaddset((set),(sig)) :   \
+       __gen_sigaddset((set),(sig)))
+
+static __inline__ void __gen_sigaddset(sigset_t *set, int _sig)
 {
-       __asm__("btsl %1,%0" : "=m"(*set) : "Ir"(_sig - 1) : "cc");
+       __asm__("btsl %1,%0" : "+m"(*set) : "Ir"(_sig - 1) : "cc");
 }
 
-static __inline__ void sigdelset(sigset_t *set, int _sig)
+static __inline__ void __const_sigaddset(sigset_t *set, int _sig)
 {
-       __asm__("btrl %1,%0" : "=m"(*set) : "Ir"(_sig - 1) : "cc");
+       unsigned long sig = _sig - 1;
+       set->sig[sig / _NSIG_BPW] |= 1 << (sig % _NSIG_BPW);
+}
+
+#define sigdelset(set,sig)                 \
+       (__builtin_constant_p(sig) ?       \
+       __const_sigdelset((set),(sig)) :   \
+       __gen_sigdelset((set),(sig)))
+
+
+static __inline__ void __gen_sigdelset(sigset_t *set, int _sig)
+{
+       __asm__("btrl %1,%0" : "+m"(*set) : "Ir"(_sig - 1) : "cc");
+}
+
+static __inline__ void __const_sigdelset(sigset_t *set, int _sig)
+{
+       unsigned long sig = _sig - 1;
+       set->sig[sig / _NSIG_BPW] &= ~(1 << (sig % _NSIG_BPW));
 }
 
 static __inline__ int __const_sigismember(sigset_t *set, int _sig)
@@ -222,8 +218,14 @@ static __inline__ int sigfindinword(unsigned long word)
 }
 
 struct pt_regs;
-extern int FASTCALL(do_signal(struct pt_regs *regs, sigset_t *oldset));
-#define ptrace_signal_deliver(regs, cookie) do { } while (0)
+
+#define ptrace_signal_deliver(regs, cookie)            \
+       do {                                            \
+               if (current->ptrace & PT_DTRACE) {      \
+                       current->ptrace &= ~PT_DTRACE;  \
+                       (regs)->eflags &= ~TF_MASK;     \
+               }                                       \
+       } while (0)
 
 #endif /* __KERNEL__ */