signal: add SIGQUIT & SIGTERM support

SIGQUIT SIGTERM are equal with SIGINT now

Change-Id: Iefc084d58db28003dc40a17f1ff3fbd7a0b716ed

include/signal.h

@@ -175,6 +175,8 @@
 #ifdef CONFIG_SIG_SIGKILL_ACTION
 #  define SIGKILL     CONFIG_SIG_KILL
 #  define SIGINT      CONFIG_SIG_INT
+#  define SIGQUIT     CONFIG_SIG_QUIT
+#  define SIGTERM     CONFIG_SIG_TERM
 #endif
 
 #ifndef CONFIG_SIG_SIGPIPE

libs/libc/string/lib_strsignal.c

@@ -163,6 +163,16 @@ FAR char *strsignal(int signum)
         return (FAR char *)"SIGINT";
 #endif
 
+#ifdef SIGQUIT
+      case SIGQUIT:
+        return (FAR char *)"SIGQUIT";
+#endif
+
+#ifdef SIGTERM
+      case SIGTERM:
+        return (FAR char *)"SIGTERM";
+#endif
+
       /* Non-standard signals */
 
 #ifdef SIGCONDTIMEDOUT

sched/Kconfig

@@ -1353,7 +1353,7 @@ config SIG_SIGSTOP_ACTION
 		task) and SIGCONT (resume the task).
 
 config SIG_SIGKILL_ACTION
-	bool "SIGINT and SIGKILL"
+	bool "SIGINT SIGKILL SIGQUIT and SIGTERM"
 	default y
 	---help---
 		Enable the default action for SIGINT and SIGKILL (terminate the
@@ -1449,6 +1449,22 @@ config SIG_INT
 		The SIGINT signal is sent to cause a task termination event.
 		SIGINT may be ignored or caught by the receiving task.
 
+config SIG_QUIT
+	int "SIGQUIT"
+	default 11
+	depends on SIG_SIGKILL_ACTION
+	---help---
+		The SIGINT signal is sent to cause a task termination event.
+		SIGQUIT may be ignored or caught by the receiving task.
+
+config SIG_TERM
+	int "SIGTERM"
+	default 12
+	depends on SIG_SIGKILL_ACTION
+	---help---
+		The SIGINT signal is sent to cause a task termination event.
+		SIGTERM may be ignored or caught by the receiving task.
+
 endif # SIG_DEFAULT
 
 config SIG_PIPE

sched/signal/sig_default.c

@@ -140,6 +140,8 @@ static const struct nxsig_defaction_s g_defactions[] =
 #ifdef CONFIG_SIG_SIGKILL_ACTION
   { SIGINT,  0,                nxsig_abnormal_termination },
   { SIGKILL, SIG_FLAG_NOCATCH, nxsig_abnormal_termination },
+  { SIGQUIT, 0,                nxsig_abnormal_termination },
+  { SIGTERM, 0,                nxsig_abnormal_termination },
 #endif
 #ifdef CONFIG_SIG_SIGPIPE_ACTION
   { SIGPIPE, 0,                nxsig_abnormal_termination }