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authorAl Viro <viro@zeniv.linux.org.uk>2012-04-28 02:04:15 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2012-06-01 12:58:52 -0400
commitefee984c27b67e3ebef40410f35671997441b57c (patch)
tree53457dba2338f853d34e1754e7f7f960e4a29482 /kernel/signal.c
parent17440f171e28e86cc21a4c8fd1fa3c561503f80e (diff)
downloadlinux-efee984c27b67e3ebef40410f35671997441b57c.tar.bz2
new helper: signal_delivered()
Does block_sigmask() + tracehook_signal_handler(); called when sigframe has been successfully built. All architectures converted to it; block_sigmask() itself is gone now (merged into this one). I'm still not too happy with the signature, but that's a separate story (IMO we need a structure that would contain signal number + siginfo + k_sigaction, so that get_signal_to_deliver() would fill one, signal_delivered(), handle_signal() and probably setup...frame() - take one). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'kernel/signal.c')
-rw-r--r--kernel/signal.c22
1 files changed, 13 insertions, 9 deletions
diff --git a/kernel/signal.c b/kernel/signal.c
index df8d721a9e6f..677102789cf2 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -2368,17 +2368,20 @@ relock:
}
/**
- * block_sigmask - add @ka's signal mask to current->blocked
- * @ka: action for @signr
- * @signr: signal that has been successfully delivered
+ * signal_delivered -
+ * @sig: number of signal being delivered
+ * @info: siginfo_t of signal being delivered
+ * @ka: sigaction setting that chose the handler
+ * @regs: user register state
+ * @stepping: nonzero if debugger single-step or block-step in use
*
* This function should be called when a signal has succesfully been
- * delivered. It adds the mask of signals for @ka to current->blocked
- * so that they are blocked during the execution of the signal
- * handler. In addition, @signr will be blocked unless %SA_NODEFER is
- * set in @ka->sa.sa_flags.
+ * delivered. It updates the blocked signals accordingly (@ka->sa.sa_mask
+ * is always blocked, and the signal itself is blocked unless %SA_NODEFER
+ * is set in @ka->sa.sa_flags. Tracing is notified.
*/
-void block_sigmask(struct k_sigaction *ka, int signr)
+void signal_delivered(int sig, siginfo_t *info, struct k_sigaction *ka,
+ struct pt_regs *regs, int stepping)
{
sigset_t blocked;
@@ -2390,8 +2393,9 @@ void block_sigmask(struct k_sigaction *ka, int signr)
sigorsets(&blocked, &current->blocked, &ka->sa.sa_mask);
if (!(ka->sa.sa_flags & SA_NODEFER))
- sigaddset(&blocked, signr);
+ sigaddset(&blocked, sig);
set_current_blocked(&blocked);
+ tracehook_signal_handler(sig, info, ka, regs, stepping);
}
/*