ESP32: Fix reset() causing meditation error (ref #1777)

Author: gfwilliams

ChangeLog

@@ -154,6 +154,7 @@
             Correctly handle parsing of template literals inside template literals
             Don't store command history if echo=off (eg for Web IDE/App Loader uploads)
             E.defrag now kicks the watchdog (on Bangle.js 2 it can take long enough that the watchdog fires)
+            ESP32: Fix reset() causing meditation error (ref #1777)
 
      2v14 : Bangle.js2: Fix issue with E.showMenu creating a global `s` variable
             Bangle.js2: Recheck string wrapping after font change inside E.showMenu

make/targets/ESP32.make

@@ -2,8 +2,10 @@ ESP_ZIP     = $(PROJ_NAME).tgz
 
 COMPORT?=/dev/ttyUSB0
 
-$(PROJ_NAME).bin: $(OBJS)
+$(PROJ_NAME).elf: $(OBJS)
 	$(LD) $(LDFLAGS) -o $(PROJ_NAME).elf -Wl,--start-group $(LIBS) $(OBJS) -Wl,--end-group
+
+$(PROJ_NAME).bin: $(PROJ_NAME).elf
 	python $(ESP_IDF_PATH)/components/esptool_py/esptool/esptool.py \
 	--chip esp32 \
 	elf2image \
@@ -12,6 +14,9 @@ $(PROJ_NAME).bin: $(OBJS)
 	-o $(PROJ_NAME).bin \
 	$(PROJ_NAME).elf
 
+$(PROJ_NAME).lst : $(PROJ_NAME).elf
+	$(OBJDUMP) -d -l -x $(PROJ_NAME).elf > $(PROJ_NAME).lst
+
 $(ESP_ZIP): $(PROJ_NAME).bin
 	$(Q)rm -rf $(PROJ_NAME)
 	$(Q)mkdir -p $(PROJ_NAME)

src/jsinteractive.c

@@ -2236,10 +2236,11 @@ void jsiIdle() {
     JsiStatus s = jsiStatus;
     if ((s&JSIS_TODO_RESET) == JSIS_TODO_RESET) {
       // shut down everything and start up again
+      unsigned int oldJsVarsSize = jsVarsSize; // we must remember the old vars size - mainly for ESP32 where it can change
       jsiKill();
       jsvKill();
       jshReset();
-      jsvInit(0);
+      jsvInit(oldJsVarsSize);
       jsiSemiInit(false, NULL/* no filename */); // don't autoload
       jsiStatus &= (JsiStatus)~JSIS_TODO_RESET;
     }

src/jsvar.h

@@ -789,9 +789,11 @@ void jsvFree(void *ptr);
     }                                                                         \
   }
 
-#endif /* JSVAR_H_ */
-
-#if defined(JSVAR_MALLOC) && defined(ESPR_EMBED)
+#if defined(JSVAR_MALLOC)
 extern unsigned int jsVarsSize;
 extern JsVar *jsVars;
 #endif
+
+#endif /* JSVAR_H_ */
+
+