Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff

[linux-2.6.git] / arch / m68knommu / kernel / signal.c

diff --git a/arch/m68knommu/kernel/signal.c b/arch/m68knommu/kernel/signal.c
index 30dceb5..e1b3aa3 100644 (file)
--- a/arch/m68knommu/kernel/signal.c
+++ b/arch/m68knommu/kernel/signal.c
@@ -285,6 +285,7 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext *usc, void *fp,
        regs->d1 = context.sc_d1;
        regs->a0 = context.sc_a0;
        regs->a1 = context.sc_a1;
+       ((struct switch_stack *)regs - 1)->a5 = context.sc_a5;
        regs->sr = (regs->sr & 0xff00) | (context.sc_sr & 0xff);
        regs->pc = context.sc_pc;
        regs->orig_d0 = -1;             /* disable syscall checks */
@@ -498,6 +499,7 @@ static void setup_sigcontext(struct sigcontext *sc, struct pt_regs *regs,
        sc->sc_d1 = regs->d1;
        sc->sc_a0 = regs->a0;
        sc->sc_a1 = regs->a1;
+       sc->sc_a5 = ((struct switch_stack *)regs - 1)->a5;
        sc->sc_sr = regs->sr;
        sc->sc_pc = regs->pc;
        sc->sc_formatvec = regs->format << 12 | regs->vector;
@@ -597,6 +599,9 @@ static void setup_frame (int sig, struct k_sigaction *ka,
        /* Set up registers for signal handler */
        wrusp ((unsigned long) frame);
        regs->pc = (unsigned long) ka->sa.sa_handler;
+       ((struct switch_stack *)regs - 1)->a5 = current->mm->start_data;
+       regs->format = 0x4; /*set format byte to make stack appear modulo 4 
+                                               which it will be when doing the rte */
 
 adjust_stack:
        /* Prepare to skip over the extra stuff in the exception frame.  */
@@ -664,6 +669,9 @@ static void setup_rt_frame (int sig, struct k_sigaction *ka, siginfo_t *info,
        /* Set up registers for signal handler */
        wrusp ((unsigned long) frame);
        regs->pc = (unsigned long) ka->sa.sa_handler;
+       ((struct switch_stack *)regs - 1)->a5 = current->mm->start_data;
+       regs->format = 0x4; /*set format byte to make stack appear modulo 4 
+                                               which it will be when doing the rte */
 
 adjust_stack:
        /* Prepare to skip over the extra stuff in the exception frame.  */
@@ -732,13 +740,12 @@ handle_signal(int sig, struct k_sigaction *ka, siginfo_t *info,
        if (ka->sa.sa_flags & SA_ONESHOT)
                ka->sa.sa_handler = SIG_DFL;
 
-       if (!(ka->sa.sa_flags & SA_NODEFER)) {
-               spin_lock_irq(&current->sighand->siglock);
-               sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
+       spin_lock_irq(&current->sighand->siglock);
+       sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
+       if (!(ka->sa.sa_flags & SA_NODEFER))
                sigaddset(&current->blocked,sig);
-               recalc_sigpending();
-               spin_unlock_irq(&current->sighand->siglock);
-       }
+       recalc_sigpending();
+       spin_unlock_irq(&current->sighand->siglock);
 }
 
 /*