signals: fix build and runtime issues when signals all isabled

 Fix build and runtime issues when signals all disabled.

Signed-off-by: Chengdong Wang <wangchengdong@lixiang.com>

Author: wangchdo

canutils/candump/CMakeLists.txt

@@ -20,7 +20,7 @@
 #
 # ##############################################################################
 
-if(CONFIG_CANUTILS_CANDUMP)
+if(CONFIG_CANUTILS_CANDUMP AND CONFIG_ENABLE_ALL_SIGNALS)
 
   set(LIBCANUTILS_DIR ${NUTTX_APPS_DIR}/canutils/libcanutils)
 

canutils/candump/Make.defs

@@ -21,5 +21,7 @@
 ############################################################################/
 
 ifneq ($(CONFIG_CANUTILS_CANDUMP),)
+ifneq ($(CONFIG_ENABLE_ALL_SIGNALS),)
 CONFIGURED_APPS += $(APPDIR)/canutils/candump
 endif
+endif

examples/chrono/CMakeLists.txt

@@ -20,7 +20,7 @@
 #
 # ##############################################################################
 
-if(CONFIG_EXAMPLES_CHRONO)
+if(CONFIG_EXAMPLES_CHRONO AND CONFIG_ENABLE_ALL_SIGNALS)
   nuttx_add_application(
     NAME
     ${CONFIG_EXAMPLES_CHRONO_PROGNAME}

examples/chrono/Make.defs

@@ -21,5 +21,7 @@
 ############################################################################
 
 ifneq ($(CONFIG_EXAMPLES_CHRONO),)
+ifneq ($(CONFIG_ENABLE_ALL_SIGNALS),)
 CONFIGURED_APPS += $(APPDIR)/examples/chrono
 endif
+endif

examples/djoystick/CMakeLists.txt

@@ -20,7 +20,7 @@
 #
 # ##############################################################################
 
-if(CONFIG_EXAMPLES_DJOYSTICK)
+if(CONFIG_EXAMPLES_DJOYSTICK AND CONFIG_ENABLE_ALL_SIGNALS)
   nuttx_add_application(
     NAME
     djoy

examples/djoystick/Make.defs

@@ -21,5 +21,7 @@
 ############################################################################
 
 ifneq ($(CONFIG_EXAMPLES_DJOYSTICK),)
+ifneq ($(CONFIG_ENABLE_ALL_SIGNALS),)
 CONFIGURED_APPS += $(APPDIR)/examples/djoystick
 endif
+endif

examples/i2sloop/CMakeLists.txt

@@ -20,7 +20,7 @@
 #
 # ##############################################################################
 
-if(CONFIG_EXAMPLES_I2SLOOP)
+if(CONFIG_EXAMPLES_I2SLOOP AND CONFIG_ENABLE_ALL_SIGNALS)
   nuttx_add_application(
     NAME
     i2sloop

examples/i2sloop/Make.defs

@@ -21,5 +21,7 @@
 ############################################################################
 
 ifneq ($(CONFIG_EXAMPLES_I2SLOOP),)
+ifneq ($(CONFIG_ENABLE_ALL_SIGNALS),)
 CONFIGURED_APPS += $(APPDIR)/examples/i2sloop
 endif
+endif

examples/ipforward/ipforward.c

@@ -542,8 +542,16 @@ static FAR void *ipfwd_receiver(FAR void *arg)
   int errcode;
   int i;
 
+#ifdef CONFIG_DISABLE_ALL_SIGNALS
+  pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL);
+  pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL);
+#endif
+
   for (i = 0; i < IPFWD_NPACKETS; i++)
     {
+#ifdef CONFIG_DISABLE_ALL_SIGNALS
+      pthread_testcancel();
+#endif
       nread = read(fwd->ia_fd, fwd->ia_buffer, IPFWD_BUFSIZE);
       if (nread < 0)
         {
@@ -840,7 +848,12 @@ int main(int argc, FAR char *argv[])
 
   /* Wait for receiver thread to terminate */
 
+#ifdef CONFIG_DISABLE_ALL_SIGNALS
+  pthread_cancel(fwd.if_receiver);
+#else
   pthread_kill(fwd.if_receiver, 9);
+#endif
+
   ret = pthread_join(fwd.if_receiver, &value);
   if (ret != OK)
     {

examples/oneshot/CMakeLists.txt

@@ -20,7 +20,7 @@
 #
 # ##############################################################################
 
-if(CONFIG_EXAMPLES_ONESHOT)
+if(CONFIG_EXAMPLES_ONESHOT AND CONFIG_ENABLE_ALL_SIGNALS)
   nuttx_add_application(
     NAME
     ${CONFIG_EXAMPLES_ONESHOT_PROGNAME}