Switch to newlib nano

ports/espressif/Makefile

@@ -135,7 +135,7 @@ ifeq ($(DEBUG), 1)
 	# You may want to enable these flags to make setting breakpoints easier.
 	# CFLAGS += -fno-inline -fno-ipa-sra
 else
-	CFLAGS += -DNDEBUG -ggdb3
+	CFLAGS += -DNDEBUG
 	# RISC-V is larger than xtensa
 	# Use -Os for RISC-V when it overflows
 	ifeq ($(IDF_TARGET_ARCH),riscv)
@@ -150,6 +150,11 @@ CFLAGS += $(OPTIMIZATION_FLAGS)
 
 CFLAGS += $(INC) -Werror -Wall -std=gnu11 -Wl,--gc-sections $(BASE_CFLAGS) $(C_DEFS) $(CFLAGS_MOD) $(COPT) -Werror=missing-prototypes
 
+# Most current ESPs have nano versions of newlib in ROM so we use them.
+ifneq ($(IDF_TARGET),esp32c6)
+	CFLAGS += --specs=nano.specs
+endif
+
 ifeq ($(IDF_TARGET_ARCH),xtensa)
 CFLAGS += -mlongcalls
 else ifeq ($(IDF_TARGET_ARCH),riscv)
@@ -412,9 +417,13 @@ endif
 ESP_IDF_COMPONENTS_LINK = $(IDF_TARGET_ARCH) app_update bootloader_support driver efuse esp_adc esp_app_format esp_common esp_event esp_hw_support esp_netif esp_partition esp_phy esp_pm esp_ringbuf esp_rom esp_system esp_timer esp-tls esp_wifi freertos hal heap log lwip mbedtls mdns newlib nvs_flash pthread soc spi_flash vfs wpa_supplicant
 ifneq ($(CIRCUITPY_BLEIO),0)
 	ESP_IDF_COMPONENTS_LINK += bt
+	ifeq ($(IDF_TARGET),esp32)
+	BINARY_BLOBS += esp-idf/components/bt/controller/lib_esp32/$(IDF_TARGET)/libbtdm_app.a
+	else
 	BINARY_BLOBS += esp-idf/components/esp_phy/lib/$(IDF_TARGET)/libbtbb.a \
 					esp-idf/components/bt/controller/lib_esp32c3_family/$(IDF_TARGET)/libbtdm_app.a
 	endif
+endif
 ifneq ($(CIRCUITPY_ESPULP),0)
 	ESP_IDF_COMPONENTS_LINK += ulp
 endif

ports/espressif/boards/adafruit_esp32s3_camera/sdkconfig

@@ -10,6 +10,13 @@
 CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3"
 # end of LWIP
 
+#
+# Camera configuration
+#
+# CONFIG_OV7725_SUPPORT is not set
+# CONFIG_OV3660_SUPPORT is not set
+# end of Camera configuration
+
 # end of Component config
 
 # end of Espressif IoT Development Framework Configuration

ports/espressif/esp-idf-config/sdkconfig-esp32.defaults

@@ -56,6 +56,12 @@ CONFIG_ESP32_WIFI_CACHE_TX_BUFFER_NUM=16
 # CONFIG_ESP_WIFI_STA_DISCONNECTED_PM_ENABLE is not set
 # end of Wi-Fi
 
+#
+# Newlib
+#
+CONFIG_NEWLIB_NANO_FORMAT=y
+# end of Newlib
+
 #
 # SPI Flash driver
 #

ports/espressif/esp-idf-config/sdkconfig-esp32c3.defaults

@@ -49,6 +49,12 @@ CONFIG_I2S_SUPPRESS_DEPRECATE_WARN=y
 
 # end of Driver Configurations
 
+#
+# Newlib
+#
+CONFIG_NEWLIB_NANO_FORMAT=y
+# end of Newlib
+
 # end of Component config
 
 # end of Espressif IoT Development Framework Configuration

ports/espressif/esp-idf-config/sdkconfig-esp32s2.defaults

@@ -46,6 +46,12 @@ CONFIG_ESP32S2_RTCDATA_IN_FAST_MEM=y
 
 # end of ESP System Settings
 
+#
+# Newlib
+#
+CONFIG_NEWLIB_NANO_FORMAT=y
+# end of Newlib
+
 #
 # Ultra Low Power (ULP) Co-processor
 #

ports/espressif/esp-idf-config/sdkconfig-esp32s3.defaults

@@ -85,6 +85,12 @@ CONFIG_ESP32_WIFI_DYNAMIC_TX_BUFFER_NUM=16
 # CONFIG_ESP32_WIFI_NVS_ENABLED is not set
 # end of Wi-Fi
 
+#
+# Newlib
+#
+CONFIG_NEWLIB_NANO_FORMAT=y
+# end of Newlib
+
 #
 # Ultra Low Power (ULP) Co-processor
 #

ports/espressif/esp-idf-config/sdkconfig-flash-4MB-no-uf2.defaults

@@ -1,4 +1,7 @@
 #
+# Espressif IoT Development Framework Configuration
+#
+#
 # Serial flasher config
 #
 # CONFIG_ESPTOOLPY_FLASHSIZE_1MB is not set
@@ -6,13 +9,17 @@
 CONFIG_ESPTOOLPY_FLASHSIZE_4MB=y
 # CONFIG_ESPTOOLPY_FLASHSIZE_8MB is not set
 # CONFIG_ESPTOOLPY_FLASHSIZE_16MB is not set
+# CONFIG_ESPTOOLPY_FLASHSIZE_32MB is not set
+# CONFIG_ESPTOOLPY_FLASHSIZE_64MB is not set
+# CONFIG_ESPTOOLPY_FLASHSIZE_128MB is not set
 CONFIG_ESPTOOLPY_FLASHSIZE="4MB"
-CONFIG_ESPTOOLPY_FLASHSIZE_DETECT=y
 # end of Serial flasher config
 
-CONFIG_PARTITION_TABLE_CUSTOM_FILENAME="esp-idf-config/partitions-4MB-no-uf2.csv"
 #
 # Partition Table
 #
+CONFIG_PARTITION_TABLE_CUSTOM_FILENAME="esp-idf-config/partitions-4MB-no-uf2.csv"
 CONFIG_PARTITION_TABLE_FILENAME="esp-idf-config/partitions-4MB-no-uf2.csv"
 # end of Partition Table
+
+# end of Espressif IoT Development Framework Configuration

ports/espressif/esp-idf-config/sdkconfig-flash-8MB-no-uf2.defaults

@@ -1,4 +1,7 @@
 #
+# Espressif IoT Development Framework Configuration
+#
+#
 # Serial flasher config
 #
 # CONFIG_ESPTOOLPY_FLASHSIZE_1MB is not set
@@ -6,13 +9,17 @@
 # CONFIG_ESPTOOLPY_FLASHSIZE_4MB is not set
 CONFIG_ESPTOOLPY_FLASHSIZE_8MB=y
 # CONFIG_ESPTOOLPY_FLASHSIZE_16MB is not set
+# CONFIG_ESPTOOLPY_FLASHSIZE_32MB is not set
+# CONFIG_ESPTOOLPY_FLASHSIZE_64MB is not set
+# CONFIG_ESPTOOLPY_FLASHSIZE_128MB is not set
 CONFIG_ESPTOOLPY_FLASHSIZE="8MB"
-CONFIG_ESPTOOLPY_FLASHSIZE_DETECT=y
 # end of Serial flasher config
 
-CONFIG_PARTITION_TABLE_CUSTOM_FILENAME="esp-idf-config/partitions-8MB-no-uf2.csv"
 #
 # Partition Table
 #
+CONFIG_PARTITION_TABLE_CUSTOM_FILENAME="esp-idf-config/partitions-8MB-no-uf2.csv"
 CONFIG_PARTITION_TABLE_FILENAME="esp-idf-config/partitions-8MB-no-uf2.csv"
 # end of Partition Table
+
+# end of Espressif IoT Development Framework Configuration

ports/espressif/mpconfigport.mk

@@ -49,6 +49,7 @@ CIRCUITPY_WIFI ?= 1
 ifeq ($(IDF_TARGET),esp32)
 # Modules
 CIRCUITPY_RGBMATRIX = 0
+CIRCUITPY_BLEIO = 0
 # Features
 CIRCUITPY_USB = 0