add build for newlib

Author: yuetloo

Makefile

@@ -1,6 +1,6 @@
 IDF_PATH ?= /root/.espressif/components
 ESP_COMPONENTS = soc hal log esp_common esp_hw_support riscv \
-		esp_rom
+		esp_rom newlib
 
 all: build
 

esp32c3/components/newlib/Makefile

@@ -0,0 +1,40 @@
+LIB = libnewlib.a
+LIB_SRCS = $(IDF_PATH)/$(LIBDIR)/abort.c \
+           $(IDF_PATH)/$(LIBDIR)/assert.c \
+           $(IDF_PATH)/$(LIBDIR)/heap.c \
+           $(IDF_PATH)/$(LIBDIR)/locks.c \
+           $(IDF_PATH)/$(LIBDIR)/poll.c \
+           $(IDF_PATH)/$(LIBDIR)/pthread.c \
+           $(IDF_PATH)/$(LIBDIR)/random.c \
+           $(IDF_PATH)/$(LIBDIR)/getentropy.c \
+           $(IDF_PATH)/$(LIBDIR)/newlib_init.c \
+           $(IDF_PATH)/$(LIBDIR)/syscalls.c \
+           $(IDF_PATH)/$(LIBDIR)/termios.c \
+           $(IDF_PATH)/$(LIBDIR)/stdatomic.c \
+           $(IDF_PATH)/$(LIBDIR)/time.c \
+           $(IDF_PATH)/$(LIBDIR)/sysconf.c \
+           $(IDF_PATH)/$(LIBDIR)/realpath.c \
+           $(IDF_PATH)/$(LIBDIR)/scandir.c
+
+EXTRA_CFLAGS= -I$(IDF_PATH)/$(LIBDIR)/platform_include \
+              -I$(IDF_PATH)/$(LIBDIR)/priv_include  \
+              -I$(IDF_PATH)/esp_hw_support/include \
+              -I$(IDF_PATH)/esp_hw_support/port/$(ARCH)/include \
+              -I$(IDF_PATH)/esp_rom/$(ARCH) \
+              -I$(IDF_PATH)/hal/$(ARCH)/include \
+              -I$(IDF_PATH)/hal/platform_port/include \
+              -I$(IDF_PATH)/hal/include \
+              -I$(IDF_PATH)/heap/include \
+              -I$(IDF_PATH)/log/include \
+              -I$(IDF_PATH)/newlib/platform_include \
+              -I$(IDF_PATH)/riscv/include \
+              -I$(IDF_PATH)/spi_flash/include \
+              -I$(IDF_PATH)/esp_rom/include \
+              -I$(IDF_PATH)/freertos/FreeRTOS-Kernel/portable/riscv/include/freertos \
+              -I$(IDF_PATH)/freertos/config/include \
+              -I$(IDF_PATH)/freertos/config/riscv/include \
+              -I$(IDF_PATH)/freertos/FreeRTOS-Kernel/include \
+              -I$(IDF_PATH)/freertos/config/include/freertos \
+              -I$(IDF_PATH)/esp_system/include
+
+include ../../../$(ARCH)/build.mk

sdkconfig.h

@@ -3,6 +3,7 @@
  * Espressif IoT Development Framework (ESP-IDF) 5.2.4 Configuration Header
  */
 #pragma once
+#define CONFIG_ESP_CONSOLE_ROM_SERIAL_PORT_NUM 1
 #define CONFIG_FREERTOS_NUMBER_OF_CORES 1
 #define CONFIG_SOC_ADC_SUPPORTED 1
 #define CONFIG_SOC_DEDICATED_GPIO_SUPPORTED 1