parisc: fix tracing of signals

Mike Frysinger pointed out that calling tracehook_signal_handler with
stepping=0 missed testing the thread flags, resulting in not calling
ptrace_notify. Fix this by testing if we're single stepping or branch
stepping and setting the flag accordingly.

Tested, seems to work.

Reported-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index fb37ac5..35c827e 100644 (file)
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -468,7 +468,9 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
        recalc_sigpending();
        spin_unlock_irq(&current->sighand->siglock);
 
-       tracehook_signal_handler(sig, info, ka, regs, 0);
+       tracehook_signal_handler(sig, info, ka, regs, 
+               test_thread_flag(TIF_SINGLESTEP) ||
+               test_thread_flag(TIF_BLOCKSTEP));
 
        return 1;
 }