add some logs

examples/widgets/list/lv_example_list_1.c

@@ -5,7 +5,7 @@ static lv_obj_t * list1;
 static void event_handler(lv_obj_t * obj, lv_event_t event)
 {
     if(event == LV_EVENT_CLICKED) {
-        LV_LOG_USER("Clicked: %s\n", lv_list_get_btn_text(list1, obj));
+        LV_LOG_USER("Clicked: %s", lv_list_get_btn_text(list1, obj));
     }
 }
 void lv_example_list_1(void)

src/extra/layouts/flex/lv_flex.c

@@ -159,7 +159,7 @@ static void flex_update(lv_obj_t * cont, lv_obj_t * item)
     if(cont->spec_attr == NULL) return;
     const lv_flex_t * f = (const lv_flex_t *)cont->spec_attr->layout_dsc;
 
-    LV_LOG_INFO("Flex update on 0x%p", cont);
+    LV_LOG_INFO("Flex update on 0x%p triggered by 0x%p", cont, item);
 
     bool rtl = lv_obj_get_base_dir(cont) == LV_BIDI_DIR_RTL ? true : false;
     bool row = f->dir == LV_FLEX_FLOW_ROW ? true : false;

src/lv_core/lv_obj.c

@@ -188,6 +188,8 @@ lv_res_t lv_event_send(lv_obj_t * obj, lv_event_t event, void * param)
 
     LV_ASSERT_OBJ(obj, MY_CLASS);
 
+    LV_LOG_TRACE("Sending event %d to 0x%p with 0x%p param", event, obj, param);
+
     /*Nothing to do if no event function and not bubbled*/
     lv_event_dsc_t * event_dsc = lv_obj_get_event_dsc(obj, 0);
     if(event_dsc == NULL && lv_obj_has_flag(obj, LV_OBJ_FLAG_EVENT_BUBBLE) == false) {
@@ -287,6 +289,8 @@ lv_res_t lv_signal_send(lv_obj_t * obj, lv_signal_t signal, void * param)
 {
     if(obj == NULL) return LV_RES_OK;
 
+    LV_LOG_TRACE("Sending signal %d to 0x%p with 0x%p param", signal, obj, param);
+
     const lv_obj_class_t * class_p = obj->class_p;
     while(class_p && class_p->signal_cb == NULL) class_p = class_p->base_class;
 

src/lv_core/lv_obj_class.c

@@ -42,6 +42,7 @@ static uint32_t get_instance_size(const lv_obj_class_t * class_p);
 
 lv_obj_t * lv_obj_create_from_class(const lv_obj_class_t * class_p, lv_obj_t * parent, const lv_obj_t * copy)
 {
+    LV_LOG_TRACE("Creating object with 0x%p class on 0x%p parent", class_p, parent);
     uint32_t s = get_instance_size(class_p);
     lv_obj_t * obj = lv_mem_alloc(s);
     lv_memset_00(obj, s);
@@ -51,7 +52,6 @@ lv_obj_t * lv_obj_create_from_class(const lv_obj_class_t * class_p, lv_obj_t * p
 
     while(class_start && class_start->constructor_cb == NULL) class_start = class_start->base_class;
 
-//    class_start->constructor_cb(obj, parent, copy);
     lv_obj_construct(obj, parent, copy);
 
    if(parent) {
@@ -66,6 +66,7 @@ lv_obj_t * lv_obj_create_from_class(const lv_obj_class_t * class_p, lv_obj_t * p
     if(!copy) lv_theme_apply(obj);
 //    else lv_style_list_copy(&checkbox->style_indic, &checkbox_copy->style_indic);
 
+    LV_LOG_TRACE("Object created at 0x%p address with 0x%p class on 0x%p parent", obj, class_p, parent);
     return obj;
 }
 

src/lv_core/lv_obj_style.c

@@ -184,8 +184,10 @@ void lv_obj_refresh_style(lv_obj_t * obj, lv_part_t part, lv_style_prop_t prop)
     if(prop == LV_STYLE_PROP_ALL ||
       ((prop & LV_STYLE_PROP_INHERIT) && (prop & LV_STYLE_PROP_EXT_DRAW) && (prop & LV_STYLE_PROP_LAYOUT_REFR)))
     {
+        if(part != LV_PART_SCROLLBAR) {
             refresh_children_style(obj);
         }
+    }
 }
 
 void lv_obj_enable_style_refresh(bool en)

src/lv_misc/lv_mem.c

@@ -166,9 +166,10 @@ void * lv_mem_alloc(size_t size)
 #if LV_MEM_CUSTOM == 0
     alloc = alloc_core(size);
     if(alloc == NULL) {
-        LV_LOG_TRACE("No more memory, try to defrag");
+        LV_LOG_WARN("Out of memory, try to defrag");
         lv_mem_defrag();
         alloc = alloc_core(size);
+        LV_LOG_INFO("Defrag made enough memory");
     }
 
 #else
@@ -195,7 +196,7 @@ void * lv_mem_alloc(size_t size)
         LV_LOG_WARN("Couldn't allocate memory (%d bytes)", size);
         lv_mem_monitor_t mon;
         lv_mem_monitor(&mon);
-        LV_LOG_WARN("used: %6d (%3d %%), frag: %3d %%, biggest free: %6d\n",
+        LV_LOG_WARN("used: %6d (%3d %%), frag: %3d %%, biggest free: %6d",
                (int)mon.total_size - mon.free_size, mon.used_pct, mon.frag_pct,
                (int)mon.free_biggest_size);
     }

src/lv_misc/lv_timer.c

@@ -90,7 +90,10 @@ LV_ATTRIBUTE_TIMER_HANDLER uint32_t lv_timer_handler(void)
 
             if(lv_timer_exec(LV_GC_ROOT(_lv_timer_act))) {
                 /*If a timer was created or deleted then this or the next item might be corrupted*/
-                if(timer_created || timer_deleted) break;
+                if(timer_created || timer_deleted) {
+                    LV_LOG_TRACE("Start from the first timer again because a timer was created or deleted");
+                    break;
+                }
             }
 
             LV_GC_ROOT(_lv_timer_act) = next; /*Load the next timer*/
@@ -120,7 +123,7 @@ LV_ATTRIBUTE_TIMER_HANDLER uint32_t lv_timer_handler(void)
 
     already_running = false; /*Release the mutex*/
 
-    LV_LOG_TRACE("lv_timer_handler ready");
+    LV_LOG_TRACE("lv_timer_handler ready. %d ms until the next timer call", time_till_next);
     return time_till_next;
 }
 /**
@@ -277,7 +280,9 @@ static bool lv_timer_exec(lv_timer_t * timer)
     bool exec = false;
     if(lv_timer_time_remaining(timer) == 0) {
         timer->last_run = lv_tick_get();
+        LV_LOG_TRACE("Calling timer callback 0x%p", timer->timer_cb);
         if(timer->timer_cb) timer->timer_cb(timer);
+        LV_LOG_TRACE("Timer callback 0x%p finished", timer->timer_cb);
         LV_ASSERT_MEM_INTEGRITY();
 
         /*Delete if it was a one shot lv_timer*/
@@ -286,6 +291,7 @@ static bool lv_timer_exec(lv_timer_t * timer)
                 timer->repeat_count--;
             }
             if(timer->repeat_count == 0) {
+                LV_LOG_TRACE("Deleting timer with 0x%p callback because the repeat count is over", timer->timer_cb);
                 lv_timer_del(timer);
             }
         }