From ca1a1a9d60fc7133fed31bb48241296ad502531f Mon Sep 17 00:00:00 2001
From: dchagin <dchagin@FreeBSD.org>
Date: Sun, 19 Feb 2017 07:38:11 +0000
Subject: [PATCH] Implement rt_tgsigqueueinfo system call used by glibc for
 pthread_sigqueue(3).

MFC after:	2 week
---
 sys/amd64/linux/linux_dummy.c     |  1 -
 sys/amd64/linux32/linux32_dummy.c |  1 -
 sys/compat/linux/linux_signal.c   | 29 +++++++++++++++++++++++++++++
 sys/i386/linux/linux_dummy.c      |  1 -
 4 files changed, 29 insertions(+), 3 deletions(-)

diff --git a/sys/amd64/linux/linux_dummy.c b/sys/amd64/linux/linux_dummy.c
index b86fa4d8a2b2..690205a0e6cc 100644
--- a/sys/amd64/linux/linux_dummy.c
+++ b/sys/amd64/linux/linux_dummy.c
@@ -114,7 +114,6 @@ DUMMY(inotify_init1);
 DUMMY(preadv);
 DUMMY(pwritev);
 /* linux 2.6.31: */
-DUMMY(rt_tgsigqueueinfo);
 DUMMY(perf_event_open);
 /* linux 2.6.38: */
 DUMMY(fanotify_init);
diff --git a/sys/amd64/linux32/linux32_dummy.c b/sys/amd64/linux32/linux32_dummy.c
index 74e89a9380cd..9ba578c47e0e 100644
--- a/sys/amd64/linux32/linux32_dummy.c
+++ b/sys/amd64/linux32/linux32_dummy.c
@@ -114,7 +114,6 @@ DUMMY(inotify_init1);
 DUMMY(preadv);
 DUMMY(pwritev);
 /* linux 2.6.31: */
-DUMMY(rt_tgsigqueueinfo);
 DUMMY(perf_event_open);
 /* linux 2.6.33: */
 DUMMY(fanotify_init);
diff --git a/sys/compat/linux/linux_signal.c b/sys/compat/linux/linux_signal.c
index 0ecf537467c3..69bcd9423f09 100644
--- a/sys/compat/linux/linux_signal.c
+++ b/sys/compat/linux/linux_signal.c
@@ -764,3 +764,32 @@ linux_rt_sigqueueinfo(struct thread *td, struct linux_rt_sigqueueinfo_args *args
 
 	return (error);
 }
+
+int
+linux_rt_tgsigqueueinfo(struct thread *td, struct linux_rt_tgsigqueueinfo_args *args)
+{
+	l_siginfo_t linfo;
+	struct thread *tds;
+	ksiginfo_t ksi;
+	int error;
+	int sig;
+
+	if (!LINUX_SIG_VALID(args->sig))
+		return (EINVAL);
+
+	error = copyin(args->uinfo, &linfo, sizeof(linfo));
+	if (error != 0)
+		return (error);
+
+	if (linfo.lsi_code >= 0)
+		return (EPERM);
+
+	tds = linux_tdfind(td, args->tid, args->tgid);
+	if (tds == NULL)
+		return (ESRCH);
+
+	sig = linux_to_bsd_signal(args->sig);
+	ksiginfo_init(&ksi);
+	lsiginfo_to_ksiginfo(&linfo, &ksi, sig);
+	return (linux_do_tkill(td, tds, &ksi));
+}
diff --git a/sys/i386/linux/linux_dummy.c b/sys/i386/linux/linux_dummy.c
index 9aafeb30aabd..65f80c6f10be 100644
--- a/sys/i386/linux/linux_dummy.c
+++ b/sys/i386/linux/linux_dummy.c
@@ -110,7 +110,6 @@ DUMMY(inotify_init1);
 DUMMY(preadv);
 DUMMY(pwritev);
 /* linux 2.6.31: */
-DUMMY(rt_tgsigqueueinfo);
 DUMMY(perf_event_open);
 /* linux 2.6.33: */
 DUMMY(fanotify_init);