From f69c1c9dcb815d7597ec2035470a81ac3b6c9380 Mon Sep 17 00:00:00 2001
From: Daniel Black <daniel@mariadb.org>
Date: Tue, 6 Apr 2021 16:57:38 +1000
Subject: [PATCH] MDEV-19508: SI_KERNEL is not on all implementations

SI_USER is, however in FreeBSD there are a couple of non-kernel
user signal infomations above SI_KERNEL.

Put a fallback just in case there is nothing available.
---
 include/my_pthread.h | 1 -
 sql/mysqld.cc        | 6 ++++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/include/my_pthread.h b/include/my_pthread.h
index 81dd63ee331..bc47bb8bad0 100644
--- a/include/my_pthread.h
+++ b/include/my_pthread.h
@@ -197,7 +197,6 @@ static inline int my_sigwait(sigset_t *set, int *sig, int *code)
   *code= siginfo.si_code;
   return *sig < 0 ?  errno : 0;
 #else
-#define SI_KERNEL 128
   *code= 0;
   return sigwait(set, sig);
 #endif
diff --git a/sql/mysqld.cc b/sql/mysqld.cc
index c536cdef504..7e3ce878cdc 100644
--- a/sql/mysqld.cc
+++ b/sql/mysqld.cc
@@ -3253,7 +3253,13 @@ pthread_handler_t signal_hand(void *arg __attribute__((unused)))
       }
       break;
     case SIGHUP:
+#if defined(SI_KERNEL)
       if (!abort_loop && origin != SI_KERNEL)
+#elif defined(SI_USER)
+      if (!abort_loop && origin <= SI_USER)
+#else
+      if (!abort_loop)
+#endif
       {
         int not_used;
 	mysql_print_status();		// Print some debug info