Author: jhb
Date: Wed Jul 14 21:48:16 2010
New Revision: 210084
URL: http://svn.freebsd.org/changeset/base/210084
Log:
Partially MFC 209592:
Add a tdksignal() routine that mirrors pksignal() except that it accepts a
thread instead of a process. As an extension, if a NULL ksiginfo_t is
passed in, setup a ksiginfo_t on the stack similar to psignal(). This
provides semantics matching the new tdsignal() function in 9 while
preserving the existing ABI.
Modified:
stable/8/sys/kern/kern_sig.c
stable/8/sys/sys/signalvar.h
Directory Properties:
stable/8/sys/ (props changed)
stable/8/sys/amd64/include/xen/ (props changed)
stable/8/sys/cddl/contrib/opensolaris/ (props changed)
stable/8/sys/contrib/dev/acpica/ (props changed)
stable/8/sys/contrib/pf/ (props changed)
stable/8/sys/dev/xen/xenpci/ (props changed)
Modified: stable/8/sys/kern/kern_sig.c
==============================================================================
--- stable/8/sys/kern/kern_sig.c Wed Jul 14 21:47:49 2010
(r210083)
+++ stable/8/sys/kern/kern_sig.c Wed Jul 14 21:48:16 2010
(r210084)
@@ -1987,6 +1987,24 @@ psignal_event(struct proc *p, struct sig
return (tdsignal(p, td, ksi->ksi_signo, ksi));
}
+void
+tdksignal(struct thread *td, int sig, ksiginfo_t *ksi)
+{
+ ksiginfo_t ksi_thunk;
+
+ /*
+ * If ksi is NULL, use ksi_thunk and provide semantics
+ * identical to tdsignal() in 9.0+.
+ */
+ if (ksi == NULL) {
+ ksi = &ksi_thunk;
+ ksiginfo_init(ksi);
+ ksi->ksi_signo = sig;
+ ksi->ksi_code = SI_KERNEL;
+ }
+ (void) tdsignal(td->td_proc, td, sig, ksi);
+}
+
int
tdsignal(struct proc *p, struct thread *td, int sig, ksiginfo_t *ksi)
{
Modified: stable/8/sys/sys/signalvar.h
==============================================================================
--- stable/8/sys/sys/signalvar.h Wed Jul 14 21:47:49 2010
(r210083)
+++ stable/8/sys/sys/signalvar.h Wed Jul 14 21:48:16 2010
(r210084)
@@ -345,6 +345,7 @@ void sigexit(struct thread *td, int sign
int sig_ffs(sigset_t *set);
void siginit(struct proc *p);
void signotify(struct thread *td);
+void tdksignal(struct thread *td, int sig, ksiginfo_t *ksi);
void tdsigcleanup(struct thread *td);
int tdsignal(struct proc *p, struct thread *td, int sig,
ksiginfo_t *ksi);
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