Make exceptions a configurable menu (#5434)

* Make exceptions a configurable menu

Add a menu, Exceptions, which allows exceptions to be disabled for ROM
sensitive scripts.  Default is enabled.

* Update to latest JSON builder

boards.txt

@@ -17,6 +17,7 @@ menu.dbg=Debug port
 menu.lvl=Debug Level
 menu.ip=lwIP Variant
 menu.vt=VTables
+menu.exception=Exceptions
 menu.led=Builtin Led
 menu.wipe=Erase Flash
 
@@ -45,6 +46,12 @@ generic.menu.vt.heap=Heap
 generic.menu.vt.heap.build.vtable_flags=-DVTABLES_IN_DRAM
 generic.menu.vt.iram=IRAM
 generic.menu.vt.iram.build.vtable_flags=-DVTABLES_IN_IRAM
+generic.menu.exception.enabled=Enabled
+generic.menu.exception.enabled.build.exception_flags=-fexceptions
+generic.menu.exception.enabled.build.stdcpp_lib=-lstdc++
+generic.menu.exception.disabled=Disabled
+generic.menu.exception.disabled.build.exception_flags=-fno-exceptions
+generic.menu.exception.disabled.build.stdcpp_lib=-lstdc++-nox
 generic.menu.ResetMethod.ck=ck
 generic.menu.ResetMethod.ck.upload.resetmethod=ck
 generic.menu.ResetMethod.nodemcu=nodemcu
@@ -475,6 +482,12 @@ esp8285.menu.vt.heap=Heap
 esp8285.menu.vt.heap.build.vtable_flags=-DVTABLES_IN_DRAM
 esp8285.menu.vt.iram=IRAM
 esp8285.menu.vt.iram.build.vtable_flags=-DVTABLES_IN_IRAM
+esp8285.menu.exception.enabled=Enabled
+esp8285.menu.exception.enabled.build.exception_flags=-fexceptions
+esp8285.menu.exception.enabled.build.stdcpp_lib=-lstdc++
+esp8285.menu.exception.disabled=Disabled
+esp8285.menu.exception.disabled.build.exception_flags=-fno-exceptions
+esp8285.menu.exception.disabled.build.stdcpp_lib=-lstdc++-nox
 esp8285.menu.ResetMethod.ck=ck
 esp8285.menu.ResetMethod.ck.upload.resetmethod=ck
 esp8285.menu.ResetMethod.nodemcu=nodemcu
@@ -743,6 +756,12 @@ espduino.menu.vt.heap=Heap
 espduino.menu.vt.heap.build.vtable_flags=-DVTABLES_IN_DRAM
 espduino.menu.vt.iram=IRAM
 espduino.menu.vt.iram.build.vtable_flags=-DVTABLES_IN_IRAM
+espduino.menu.exception.enabled=Enabled
+espduino.menu.exception.enabled.build.exception_flags=-fexceptions
+espduino.menu.exception.enabled.build.stdcpp_lib=-lstdc++
+espduino.menu.exception.disabled=Disabled
+espduino.menu.exception.disabled.build.exception_flags=-fno-exceptions
+espduino.menu.exception.disabled.build.stdcpp_lib=-lstdc++-nox
 espduino.build.flash_mode=dio
 espduino.build.flash_freq=40
 espduino.menu.eesz.4M=4M (no SPIFFS)
@@ -919,6 +938,12 @@ huzzah.menu.vt.heap=Heap
 huzzah.menu.vt.heap.build.vtable_flags=-DVTABLES_IN_DRAM
 huzzah.menu.vt.iram=IRAM
 huzzah.menu.vt.iram.build.vtable_flags=-DVTABLES_IN_IRAM
+huzzah.menu.exception.enabled=Enabled
+huzzah.menu.exception.enabled.build.exception_flags=-fexceptions
+huzzah.menu.exception.enabled.build.stdcpp_lib=-lstdc++
+huzzah.menu.exception.disabled=Disabled
+huzzah.menu.exception.disabled.build.exception_flags=-fno-exceptions
+huzzah.menu.exception.disabled.build.stdcpp_lib=-lstdc++-nox
 huzzah.upload.resetmethod=nodemcu
 huzzah.build.flash_mode=qio
 huzzah.build.flash_freq=40
@@ -1096,6 +1121,12 @@ inventone.menu.vt.heap=Heap
 inventone.menu.vt.heap.build.vtable_flags=-DVTABLES_IN_DRAM
 inventone.menu.vt.iram=IRAM
 inventone.menu.vt.iram.build.vtable_flags=-DVTABLES_IN_IRAM
+inventone.menu.exception.enabled=Enabled
+inventone.menu.exception.enabled.build.exception_flags=-fexceptions
+inventone.menu.exception.enabled.build.stdcpp_lib=-lstdc++
+inventone.menu.exception.disabled=Disabled
+inventone.menu.exception.disabled.build.exception_flags=-fno-exceptions
+inventone.menu.exception.disabled.build.stdcpp_lib=-lstdc++-nox
 inventone.upload.resetmethod=nodemcu
 inventone.build.flash_mode=dio
 inventone.build.flash_freq=40
@@ -1273,6 +1304,12 @@ cw01.menu.vt.heap=Heap
 cw01.menu.vt.heap.build.vtable_flags=-DVTABLES_IN_DRAM
 cw01.menu.vt.iram=IRAM
 cw01.menu.vt.iram.build.vtable_flags=-DVTABLES_IN_IRAM
+cw01.menu.exception.enabled=Enabled
+cw01.menu.exception.enabled.build.exception_flags=-fexceptions
+cw01.menu.exception.enabled.build.stdcpp_lib=-lstdc++
+cw01.menu.exception.disabled=Disabled
+cw01.menu.exception.disabled.build.exception_flags=-fno-exceptions
+cw01.menu.exception.disabled.build.stdcpp_lib=-lstdc++-nox
 cw01.upload.resetmethod=nodemcu
 cw01.menu.CrystalFreq.26=26 MHz
 cw01.menu.CrystalFreq.40=40 MHz
@@ -1453,6 +1490,12 @@ espresso_lite_v1.menu.vt.heap=Heap
 espresso_lite_v1.menu.vt.heap.build.vtable_flags=-DVTABLES_IN_DRAM
 espresso_lite_v1.menu.vt.iram=IRAM
 espresso_lite_v1.menu.vt.iram.build.vtable_flags=-DVTABLES_IN_IRAM
+espresso_lite_v1.menu.exception.enabled=Enabled
+espresso_lite_v1.menu.exception.enabled.build.exception_flags=-fexceptions
+espresso_lite_v1.menu.exception.enabled.build.stdcpp_lib=-lstdc++
+espresso_lite_v1.menu.exception.disabled=Disabled
+espresso_lite_v1.menu.exception.disabled.build.exception_flags=-fno-exceptions
+espresso_lite_v1.menu.exception.disabled.build.stdcpp_lib=-lstdc++-nox
 espresso_lite_v1.build.flash_mode=dio
 espresso_lite_v1.build.flash_freq=40
 espresso_lite_v1.menu.eesz.4M=4M (no SPIFFS)
@@ -1633,6 +1676,12 @@ espresso_lite_v2.menu.vt.heap=Heap
 espresso_lite_v2.menu.vt.heap.build.vtable_flags=-DVTABLES_IN_DRAM
 espresso_lite_v2.menu.vt.iram=IRAM
 espresso_lite_v2.menu.vt.iram.build.vtable_flags=-DVTABLES_IN_IRAM
+espresso_lite_v2.menu.exception.enabled=Enabled
+espresso_lite_v2.menu.exception.enabled.build.exception_flags=-fexceptions
+espresso_lite_v2.menu.exception.enabled.build.stdcpp_lib=-lstdc++
+espresso_lite_v2.menu.exception.disabled=Disabled
+espresso_lite_v2.menu.exception.disabled.build.exception_flags=-fno-exceptions
+espresso_lite_v2.menu.exception.disabled.build.stdcpp_lib=-lstdc++-nox
 espresso_lite_v2.build.flash_mode=dio
 espresso_lite_v2.build.flash_freq=40
 espresso_lite_v2.menu.eesz.4M=4M (no SPIFFS)
@@ -1813,6 +1862,12 @@ phoenix_v1.menu.vt.heap=Heap
 phoenix_v1.menu.vt.heap.build.vtable_flags=-DVTABLES_IN_DRAM
 phoenix_v1.menu.vt.iram=IRAM
 phoenix_v1.menu.vt.iram.build.vtable_flags=-DVTABLES_IN_IRAM
+phoenix_v1.menu.exception.enabled=Enabled
+phoenix_v1.menu.exception.enabled.build.exception_flags=-fexceptions
+phoenix_v1.menu.exception.enabled.build.stdcpp_lib=-lstdc++
+phoenix_v1.menu.exception.disabled=Disabled
+phoenix_v1.menu.exception.disabled.build.exception_flags=-fno-exceptions
+phoenix_v1.menu.exception.disabled.build.stdcpp_lib=-lstdc++-nox
 phoenix_v1.build.flash_mode=dio
 phoenix_v1.build.flash_freq=40
 phoenix_v1.menu.eesz.4M=4M (no SPIFFS)
@@ -1993,6 +2048,12 @@ phoenix_v2.menu.vt.heap=Heap
 phoenix_v2.menu.vt.heap.build.vtable_flags=-DVTABLES_IN_DRAM
 phoenix_v2.menu.vt.iram=IRAM
 phoenix_v2.menu.vt.iram.build.vtable_flags=-DVTABLES_IN_IRAM
+phoenix_v2.menu.exception.enabled=Enabled
+phoenix_v2.menu.exception.enabled.build.exception_flags=-fexceptions
+phoenix_v2.menu.exception.enabled.build.stdcpp_lib=-lstdc++
+phoenix_v2.menu.exception.disabled=Disabled
+phoenix_v2.menu.exception.disabled.build.exception_flags=-fno-exceptions
+phoenix_v2.menu.exception.disabled.build.stdcpp_lib=-lstdc++-nox
 phoenix_v2.build.flash_mode=dio
 phoenix_v2.build.flash_freq=40
 phoenix_v2.menu.eesz.4M=4M (no SPIFFS)
@@ -2173,6 +2234,12 @@ nodemcu.menu.vt.heap=Heap
 nodemcu.menu.vt.heap.build.vtable_flags=-DVTABLES_IN_DRAM
 nodemcu.menu.vt.iram=IRAM
 nodemcu.menu.vt.iram.build.vtable_flags=-DVTABLES_IN_IRAM
+nodemcu.menu.exception.enabled=Enabled
+nodemcu.menu.exception.enabled.build.exception_flags=-fexceptions
+nodemcu.menu.exception.enabled.build.stdcpp_lib=-lstdc++
+nodemcu.menu.exception.disabled=Disabled
+nodemcu.menu.exception.disabled.build.exception_flags=-fno-exceptions
+nodemcu.menu.exception.disabled.build.stdcpp_lib=-lstdc++-nox
 nodemcu.upload.resetmethod=nodemcu
 nodemcu.build.flash_mode=qio
 nodemcu.build.flash_freq=40
@@ -2350,6 +2417,12 @@ nodemcuv2.menu.vt.heap=Heap
 nodemcuv2.menu.vt.heap.build.vtable_flags=-DVTABLES_IN_DRAM
 nodemcuv2.menu.vt.iram=IRAM
 nodemcuv2.menu.vt.iram.build.vtable_flags=-DVTABLES_IN_IRAM
+nodemcuv2.menu.exception.enabled=Enabled
+nodemcuv2.menu.exception.enabled.build.exception_flags=-fexceptions
+nodemcuv2.menu.exception.enabled.build.stdcpp_lib=-lstdc++
+nodemcuv2.menu.exception.disabled=Disabled
+nodemcuv2.menu.exception.disabled.build.exception_flags=-fno-exceptions
+nodemcuv2.menu.exception.disabled.build.stdcpp_lib=-lstdc++-nox
 nodemcuv2.upload.resetmethod=nodemcu
 nodemcuv2.build.flash_mode=dio
 nodemcuv2.build.flash_freq=40
@@ -2527,6 +2600,12 @@ modwifi.menu.vt.heap=Heap
 modwifi.menu.vt.heap.build.vtable_flags=-DVTABLES_IN_DRAM
 modwifi.menu.vt.iram=IRAM
 modwifi.menu.vt.iram.build.vtable_flags=-DVTABLES_IN_IRAM
+modwifi.menu.exception.enabled=Enabled
+modwifi.menu.exception.enabled.build.exception_flags=-fexceptions
+modwifi.menu.exception.enabled.build.stdcpp_lib=-lstdc++
+modwifi.menu.exception.disabled=Disabled
+modwifi.menu.exception.disabled.build.exception_flags=-fno-exceptions
+modwifi.menu.exception.disabled.build.stdcpp_lib=-lstdc++-nox
 modwifi.upload.resetmethod=ck
 modwifi.build.flash_mode=qio
 modwifi.build.flash_freq=40
@@ -2714,6 +2793,12 @@ thing.menu.vt.heap=Heap
 thing.menu.vt.heap.build.vtable_flags=-DVTABLES_IN_DRAM
 thing.menu.vt.iram=IRAM
 thing.menu.vt.iram.build.vtable_flags=-DVTABLES_IN_IRAM
+thing.menu.exception.enabled=Enabled
+thing.menu.exception.enabled.build.exception_flags=-fexceptions
+thing.menu.exception.enabled.build.stdcpp_lib=-lstdc++
+thing.menu.exception.disabled=Disabled
+thing.menu.exception.disabled.build.exception_flags=-fno-exceptions
+thing.menu.exception.disabled.build.stdcpp_lib=-lstdc++-nox
 thing.upload.resetmethod=ck
 thing.build.flash_mode=qio
 thing.build.flash_freq=40
@@ -2891,6 +2976,12 @@ thingdev.menu.vt.heap=Heap
 thingdev.menu.vt.heap.build.vtable_flags=-DVTABLES_IN_DRAM
 thingdev.menu.vt.iram=IRAM
 thingdev.menu.vt.iram.build.vtable_flags=-DVTABLES_IN_IRAM
+thingdev.menu.exception.enabled=Enabled
+thingdev.menu.exception.enabled.build.exception_flags=-fexceptions
+thingdev.menu.exception.enabled.build.stdcpp_lib=-lstdc++
+thingdev.menu.exception.disabled=Disabled
+thingdev.menu.exception.disabled.build.exception_flags=-fno-exceptions
+thingdev.menu.exception.disabled.build.stdcpp_lib=-lstdc++-nox
 thingdev.upload.resetmethod=nodemcu
 thingdev.build.flash_mode=dio
 thingdev.build.flash_freq=40
@@ -3068,6 +3159,12 @@ esp210.menu.vt.heap=Heap
 esp210.menu.vt.heap.build.vtable_flags=-DVTABLES_IN_DRAM
 esp210.menu.vt.iram=IRAM
 esp210.menu.vt.iram.build.vtable_flags=-DVTABLES_IN_IRAM
+esp210.menu.exception.enabled=Enabled
+esp210.menu.exception.enabled.build.exception_flags=-fexceptions
+esp210.menu.exception.enabled.build.stdcpp_lib=-lstdc++
+esp210.menu.exception.disabled=Disabled
+esp210.menu.exception.disabled.build.exception_flags=-fno-exceptions
+esp210.menu.exception.disabled.build.stdcpp_lib=-lstdc++-nox
 esp210.upload.resetmethod=ck
 esp210.build.flash_mode=qio
 esp210.build.flash_freq=40
@@ -3245,6 +3342,12 @@ d1_mini.menu.vt.heap=Heap
 d1_mini.menu.vt.heap.build.vtable_flags=-DVTABLES_IN_DRAM
 d1_mini.menu.vt.iram=IRAM
 d1_mini.menu.vt.iram.build.vtable_flags=-DVTABLES_IN_IRAM
+d1_mini.menu.exception.enabled=Enabled
+d1_mini.menu.exception.enabled.build.exception_flags=-fexceptions
+d1_mini.menu.exception.enabled.build.stdcpp_lib=-lstdc++
+d1_mini.menu.exception.disabled=Disabled
+d1_mini.menu.exception.disabled.build.exception_flags=-fno-exceptions
+d1_mini.menu.exception.disabled.build.stdcpp_lib=-lstdc++-nox
 d1_mini.upload.resetmethod=nodemcu
 d1_mini.build.flash_mode=dio
 d1_mini.build.flash_freq=40
@@ -3422,6 +3525,12 @@ d1_mini_pro.menu.vt.heap=Heap
 d1_mini_pro.menu.vt.heap.build.vtable_flags=-DVTABLES_IN_DRAM
 d1_mini_pro.menu.vt.iram=IRAM
 d1_mini_pro.menu.vt.iram.build.vtable_flags=-DVTABLES_IN_IRAM
+d1_mini_pro.menu.exception.enabled=Enabled
+d1_mini_pro.menu.exception.enabled.build.exception_flags=-fexceptions
+d1_mini_pro.menu.exception.enabled.build.stdcpp_lib=-lstdc++
+d1_mini_pro.menu.exception.disabled=Disabled
+d1_mini_pro.menu.exception.disabled.build.exception_flags=-fno-exceptions
+d1_mini_pro.menu.exception.disabled.build.stdcpp_lib=-lstdc++-nox
 d1_mini_pro.upload.resetmethod=nodemcu
 d1_mini_pro.build.flash_mode=dio
 d1_mini_pro.build.flash_freq=40
@@ -3582,6 +3691,12 @@ d1_mini_lite.menu.vt.heap=Heap
 d1_mini_lite.menu.vt.heap.build.vtable_flags=-DVTABLES_IN_DRAM
 d1_mini_lite.menu.vt.iram=IRAM
 d1_mini_lite.menu.vt.iram.build.vtable_flags=-DVTABLES_IN_IRAM
+d1_mini_lite.menu.exception.enabled=Enabled
+d1_mini_lite.menu.exception.enabled.build.exception_flags=-fexceptions
+d1_mini_lite.menu.exception.enabled.build.stdcpp_lib=-lstdc++
+d1_mini_lite.menu.exception.disabled=Disabled
+d1_mini_lite.menu.exception.disabled.build.exception_flags=-fno-exceptions
+d1_mini_lite.menu.exception.disabled.build.stdcpp_lib=-lstdc++-nox
 d1_mini_lite.upload.resetmethod=nodemcu
 d1_mini_lite.build.flash_mode=dout
 d1_mini_lite.build.flash_freq=40
@@ -3799,6 +3914,12 @@ d1.menu.vt.heap=Heap
 d1.menu.vt.heap.build.vtable_flags=-DVTABLES_IN_DRAM
 d1.menu.vt.iram=IRAM
 d1.menu.vt.iram.build.vtable_flags=-DVTABLES_IN_IRAM
+d1.menu.exception.enabled=Enabled
+d1.menu.exception.enabled.build.exception_flags=-fexceptions
+d1.menu.exception.enabled.build.stdcpp_lib=-lstdc++
+d1.menu.exception.disabled=Disabled
+d1.menu.exception.disabled.build.exception_flags=-fno-exceptions
+d1.menu.exception.disabled.build.stdcpp_lib=-lstdc++-nox
 d1.upload.resetmethod=nodemcu
 d1.build.flash_mode=dio
 d1.build.flash_freq=40
@@ -3976,6 +4097,12 @@ espino.menu.vt.heap=Heap
 espino.menu.vt.heap.build.vtable_flags=-DVTABLES_IN_DRAM
 espino.menu.vt.iram=IRAM
 espino.menu.vt.iram.build.vtable_flags=-DVTABLES_IN_IRAM
+espino.menu.exception.enabled=Enabled
+espino.menu.exception.enabled.build.exception_flags=-fexceptions
+espino.menu.exception.enabled.build.stdcpp_lib=-lstdc++
+espino.menu.exception.disabled=Disabled
+espino.menu.exception.disabled.build.exception_flags=-fno-exceptions
+espino.menu.exception.disabled.build.stdcpp_lib=-lstdc++-nox
 espino.menu.ResetMethod.ck=ck
 espino.menu.ResetMethod.ck.upload.resetmethod=ck
 espino.menu.ResetMethod.nodemcu=nodemcu
@@ -4156,6 +4283,12 @@ espinotee.menu.vt.heap=Heap
 espinotee.menu.vt.heap.build.vtable_flags=-DVTABLES_IN_DRAM
 espinotee.menu.vt.iram=IRAM
 espinotee.menu.vt.iram.build.vtable_flags=-DVTABLES_IN_IRAM
+espinotee.menu.exception.enabled=Enabled
+espinotee.menu.exception.enabled.build.exception_flags=-fexceptions
+espinotee.menu.exception.enabled.build.stdcpp_lib=-lstdc++
+espinotee.menu.exception.disabled=Disabled
+espinotee.menu.exception.disabled.build.exception_flags=-fno-exceptions
+espinotee.menu.exception.disabled.build.stdcpp_lib=-lstdc++-nox
 espinotee.upload.resetmethod=nodemcu
 espinotee.build.flash_mode=qio
 espinotee.build.flash_freq=40
@@ -4350,6 +4483,12 @@ wifinfo.menu.vt.heap=Heap
 wifinfo.menu.vt.heap.build.vtable_flags=-DVTABLES_IN_DRAM
 wifinfo.menu.vt.iram=IRAM
 wifinfo.menu.vt.iram.build.vtable_flags=-DVTABLES_IN_IRAM
+wifinfo.menu.exception.enabled=Enabled
+wifinfo.menu.exception.enabled.build.exception_flags=-fexceptions
+wifinfo.menu.exception.enabled.build.stdcpp_lib=-lstdc++
+wifinfo.menu.exception.disabled=Disabled
+wifinfo.menu.exception.disabled.build.exception_flags=-fno-exceptions
+wifinfo.menu.exception.disabled.build.stdcpp_lib=-lstdc++-nox
 wifinfo.upload.resetmethod=nodemcu
 wifinfo.build.flash_mode=qio
 wifinfo.menu.FlashFreq.40=40MHz
@@ -4582,6 +4721,12 @@ arduino-esp8266.menu.vt.heap=Heap
 arduino-esp8266.menu.vt.heap.build.vtable_flags=-DVTABLES_IN_DRAM
 arduino-esp8266.menu.vt.iram=IRAM
 arduino-esp8266.menu.vt.iram.build.vtable_flags=-DVTABLES_IN_IRAM
+arduino-esp8266.menu.exception.enabled=Enabled
+arduino-esp8266.menu.exception.enabled.build.exception_flags=-fexceptions
+arduino-esp8266.menu.exception.enabled.build.stdcpp_lib=-lstdc++
+arduino-esp8266.menu.exception.disabled=Disabled
+arduino-esp8266.menu.exception.disabled.build.exception_flags=-fno-exceptions
+arduino-esp8266.menu.exception.disabled.build.stdcpp_lib=-lstdc++-nox
 arduino-esp8266.upload.resetmethod=ck
 arduino-esp8266.build.flash_mode=qio
 arduino-esp8266.build.flash_freq=40
@@ -4760,6 +4905,12 @@ gen4iod.menu.vt.heap=Heap
 gen4iod.menu.vt.heap.build.vtable_flags=-DVTABLES_IN_DRAM
 gen4iod.menu.vt.iram=IRAM
 gen4iod.menu.vt.iram.build.vtable_flags=-DVTABLES_IN_IRAM
+gen4iod.menu.exception.enabled=Enabled
+gen4iod.menu.exception.enabled.build.exception_flags=-fexceptions
+gen4iod.menu.exception.enabled.build.stdcpp_lib=-lstdc++
+gen4iod.menu.exception.disabled=Disabled
+gen4iod.menu.exception.disabled.build.exception_flags=-fno-exceptions
+gen4iod.menu.exception.disabled.build.stdcpp_lib=-lstdc++-nox
 gen4iod.upload.resetmethod=nodemcu
 gen4iod.build.flash_mode=dio
 gen4iod.build.flash_freq=80
@@ -4938,6 +5089,12 @@ oak.menu.vt.heap=Heap
 oak.menu.vt.heap.build.vtable_flags=-DVTABLES_IN_DRAM
 oak.menu.vt.iram=IRAM
 oak.menu.vt.iram.build.vtable_flags=-DVTABLES_IN_IRAM
+oak.menu.exception.enabled=Enabled
+oak.menu.exception.enabled.build.exception_flags=-fexceptions
+oak.menu.exception.enabled.build.stdcpp_lib=-lstdc++
+oak.menu.exception.disabled=Disabled
+oak.menu.exception.disabled.build.exception_flags=-fno-exceptions
+oak.menu.exception.disabled.build.stdcpp_lib=-lstdc++-nox
 oak.upload.resetmethod=none
 oak.build.flash_mode=dio
 oak.build.flash_freq=40
@@ -5115,6 +5272,12 @@ wifiduino.menu.vt.heap=Heap
 wifiduino.menu.vt.heap.build.vtable_flags=-DVTABLES_IN_DRAM
 wifiduino.menu.vt.iram=IRAM
 wifiduino.menu.vt.iram.build.vtable_flags=-DVTABLES_IN_IRAM
+wifiduino.menu.exception.enabled=Enabled
+wifiduino.menu.exception.enabled.build.exception_flags=-fexceptions
+wifiduino.menu.exception.enabled.build.stdcpp_lib=-lstdc++
+wifiduino.menu.exception.disabled=Disabled
+wifiduino.menu.exception.disabled.build.exception_flags=-fno-exceptions
+wifiduino.menu.exception.disabled.build.stdcpp_lib=-lstdc++-nox
 wifiduino.upload.resetmethod=nodemcu
 wifiduino.build.flash_mode=dio
 wifiduino.build.flash_freq=40
@@ -5292,6 +5455,12 @@ wifi_slot.menu.vt.heap=Heap
 wifi_slot.menu.vt.heap.build.vtable_flags=-DVTABLES_IN_DRAM
 wifi_slot.menu.vt.iram=IRAM
 wifi_slot.menu.vt.iram.build.vtable_flags=-DVTABLES_IN_IRAM
+wifi_slot.menu.exception.enabled=Enabled
+wifi_slot.menu.exception.enabled.build.exception_flags=-fexceptions
+wifi_slot.menu.exception.enabled.build.stdcpp_lib=-lstdc++
+wifi_slot.menu.exception.disabled=Disabled
+wifi_slot.menu.exception.disabled.build.exception_flags=-fno-exceptions
+wifi_slot.menu.exception.disabled.build.stdcpp_lib=-lstdc++-nox
 wifi_slot.upload.resetmethod=nodemcu
 wifi_slot.menu.FlashFreq.40=40MHz
 wifi_slot.menu.FlashFreq.40.build.flash_freq=40
@@ -5566,6 +5735,12 @@ wiolink.menu.vt.heap=Heap
 wiolink.menu.vt.heap.build.vtable_flags=-DVTABLES_IN_DRAM
 wiolink.menu.vt.iram=IRAM
 wiolink.menu.vt.iram.build.vtable_flags=-DVTABLES_IN_IRAM
+wiolink.menu.exception.enabled=Enabled
+wiolink.menu.exception.enabled.build.exception_flags=-fexceptions
+wiolink.menu.exception.enabled.build.stdcpp_lib=-lstdc++
+wiolink.menu.exception.disabled=Disabled
+wiolink.menu.exception.disabled.build.exception_flags=-fno-exceptions
+wiolink.menu.exception.disabled.build.stdcpp_lib=-lstdc++-nox
 wiolink.upload.resetmethod=nodemcu
 wiolink.build.flash_mode=qio
 wiolink.build.flash_freq=40
@@ -5743,6 +5918,12 @@ espectro.menu.vt.heap=Heap
 espectro.menu.vt.heap.build.vtable_flags=-DVTABLES_IN_DRAM
 espectro.menu.vt.iram=IRAM
 espectro.menu.vt.iram.build.vtable_flags=-DVTABLES_IN_IRAM
+espectro.menu.exception.enabled=Enabled
+espectro.menu.exception.enabled.build.exception_flags=-fexceptions
+espectro.menu.exception.enabled.build.stdcpp_lib=-lstdc++
+espectro.menu.exception.disabled=Disabled
+espectro.menu.exception.disabled.build.exception_flags=-fno-exceptions
+espectro.menu.exception.disabled.build.stdcpp_lib=-lstdc++-nox
 espectro.upload.resetmethod=nodemcu
 espectro.build.flash_mode=dio
 espectro.build.flash_freq=40

cores/esp8266/core_esp8266_main.cpp

@@ -155,6 +155,9 @@ extern void __unhandled_exception(const char *str);
 
 static void  __unhandled_exception_cpp()
 {
+#ifndef __EXCEPTIONS
+	abort();
+#else
     static bool terminating;
     if (terminating)
         abort();
@@ -167,6 +170,7 @@ static void  __unhandled_exception_cpp()
     } catch (...) {
         __unhandled_exception( "" );
     }
+#endif
 }
 
 }

platform.txt

@@ -24,6 +24,9 @@ build.lwip_flags=-DLWIP_OPEN_SRC
 
 build.vtable_flags=-DVTABLES_IN_FLASH
 
+build.exception_flags=-fexceptions
+build.stdcpp_lib=-lstdc++
+
 build.float=-u _printf_float -u _scanf_float
 build.led=
 
@@ -33,7 +36,7 @@ compiler.libc.path={runtime.platform.path}/tools/sdk/libc/xtensa-lx106-elf
 compiler.cpreprocessor.flags=-D__ets__ -DICACHE_FLASH -U__STRICT_ANSI__ "-I{compiler.sdk.path}/include" "-I{compiler.sdk.path}/{build.lwip_include}" "-I{compiler.libc.path}/include" "-I{build.path}/core"
 
 compiler.c.cmd=xtensa-lx106-elf-gcc
-compiler.c.flags=-c {compiler.warning_flags} -Os -g -Wpointer-arith -Wno-implicit-function-declaration -Wl,-EL -fno-inline-functions -nostdlib -mlongcalls -mtext-section-literals -falign-functions=4 -MMD -std=gnu99 -ffunction-sections -fdata-sections
+compiler.c.flags=-c {compiler.warning_flags} -Os -g -Wpointer-arith -Wno-implicit-function-declaration -Wl,-EL -fno-inline-functions -nostdlib -mlongcalls -mtext-section-literals -falign-functions=4 -MMD -std=gnu99 {build.exception_flags} -ffunction-sections -fdata-sections {build.exception_flags}
 
 compiler.S.cmd=xtensa-lx106-elf-gcc
 compiler.S.flags=-c -g -x assembler-with-cpp -MMD -mlongcalls
@@ -41,10 +44,10 @@ compiler.S.flags=-c -g -x assembler-with-cpp -MMD -mlongcalls
 compiler.c.elf.flags=-g {compiler.warning_flags} -Os -nostdlib -Wl,--no-check-sections -u app_entry {build.float} -Wl,-static "-L{compiler.sdk.path}/lib" "-L{compiler.sdk.path}/ld" "-L{compiler.libc.path}/lib" "-T{build.flash_ld}" -Wl,--gc-sections -Wl,-wrap,system_restart_local -Wl,-wrap,spi_flash_read
 
 compiler.c.elf.cmd=xtensa-lx106-elf-gcc
-compiler.c.elf.libs=-lhal -lphy -lpp -lnet80211 {build.lwip_lib} -lwpa -lcrypto -lmain -lwps -lbearssl -laxtls -lespnow -lsmartconfig -lairkiss -lwpa2 -lstdc++ -lm -lc -lgcc
+compiler.c.elf.libs=-lhal -lphy -lpp -lnet80211 {build.lwip_lib} -lwpa -lcrypto -lmain -lwps -lbearssl -laxtls -lespnow -lsmartconfig -lairkiss -lwpa2 {build.stdcpp_lib} -lm -lc -lgcc
 
 compiler.cpp.cmd=xtensa-lx106-elf-g++
-compiler.cpp.flags=-c {compiler.warning_flags} -Os -g -mlongcalls -mtext-section-literals -fno-rtti -falign-functions=4 -std=c++11 -MMD -ffunction-sections -fdata-sections
+compiler.cpp.flags=-c {compiler.warning_flags} -Os -g -mlongcalls -mtext-section-literals -fno-rtti -falign-functions=4 -std=c++11 -MMD -ffunction-sections -fdata-sections {build.exception_flags}
 
 compiler.as.cmd=xtensa-lx106-elf-as
 

tools/boards.txt.py

@@ -880,6 +880,15 @@ macros = {
         ( '.menu.vt.iram.build.vtable_flags', '-DVTABLES_IN_IRAM'),
         ]),
 
+    'exception_menu': collections.OrderedDict([
+        ( '.menu.exception.enabled', 'Enabled' ),
+        ( '.menu.exception.enabled.build.exception_flags', '-fexceptions' ),
+        ( '.menu.exception.enabled.build.stdcpp_lib', '-lstdc++' ),
+        ( '.menu.exception.disabled', 'Disabled' ),
+        ( '.menu.exception.disabled.build.exception_flags', '-fno-exceptions' ),
+        ( '.menu.exception.disabled.build.stdcpp_lib', '-lstdc++-nox' ),
+        ]),
+
     'crystalfreq_menu': collections.OrderedDict([
         ( '.menu.CrystalFreq.26', '26 MHz' ),
         ( '.menu.CrystalFreq.40', '40 MHz' ),
@@ -1346,6 +1355,7 @@ def all_boards ():
     print('menu.lvl=Debug Level')
     print('menu.ip=lwIP Variant')
     print('menu.vt=VTables')
+    print('menu.exception=Exceptions')
     print('menu.led=Builtin Led')
     print('menu.wipe=Erase Flash')
     print('')
@@ -1361,7 +1371,7 @@ def all_boards ():
                 print(id + optname + '=' + board['opts'][optname])
 
         # macros
-        macrolist = [ 'defaults', 'cpufreq_menu', 'vtable_menu' ]
+        macrolist = [ 'defaults', 'cpufreq_menu', 'vtable_menu', 'exception_menu' ]
         if 'macro' in board:
             macrolist += board['macro']
         if lwip == 2: