[bsp][x86] update x86 with Kconfig and newlib toolchains.

35 files changed, 1263 insertions, 1002 deletions

diff --git a/bsp/x86/.config b/bsp/x86/.config
new file mode 100644
index 0000000000..b796f37ae5
--- /dev/null
+++ b/bsp/x86/.config
@@ -0,0 +1,535 @@
+#
+# Automatically generated file; DO NOT EDIT.
+# RT-Thread Configuration
+#
+
+#
+# RT-Thread Kernel
+#
+CONFIG_RT_NAME_MAX=8
+# CONFIG_RT_USING_ARCH_DATA_TYPE is not set
+# CONFIG_RT_USING_SMP is not set
+CONFIG_RT_ALIGN_SIZE=4
+# CONFIG_RT_THREAD_PRIORITY_8 is not set
+CONFIG_RT_THREAD_PRIORITY_32=y
+# CONFIG_RT_THREAD_PRIORITY_256 is not set
+CONFIG_RT_THREAD_PRIORITY_MAX=32
+CONFIG_RT_TICK_PER_SECOND=100
+CONFIG_RT_USING_OVERFLOW_CHECK=y
+CONFIG_RT_USING_HOOK=y
+CONFIG_RT_USING_IDLE_HOOK=y
+CONFIG_RT_IDLE_HOOK_LIST_SIZE=4
+CONFIG_IDLE_THREAD_STACK_SIZE=2048
+CONFIG_RT_USING_TIMER_SOFT=y
+CONFIG_RT_TIMER_THREAD_PRIO=4
+CONFIG_RT_TIMER_THREAD_STACK_SIZE=2048
+CONFIG_RT_DEBUG=y
+CONFIG_RT_DEBUG_COLOR=y
+CONFIG_RT_DEBUG_INIT_CONFIG=y
+CONFIG_RT_DEBUG_INIT=1
+# CONFIG_RT_DEBUG_THREAD_CONFIG is not set
+# CONFIG_RT_DEBUG_SCHEDULER_CONFIG is not set
+# CONFIG_RT_DEBUG_IPC_CONFIG is not set
+# CONFIG_RT_DEBUG_TIMER_CONFIG is not set
+# CONFIG_RT_DEBUG_IRQ_CONFIG is not set
+# CONFIG_RT_DEBUG_MEM_CONFIG is not set
+# CONFIG_RT_DEBUG_SLAB_CONFIG is not set
+# CONFIG_RT_DEBUG_MEMHEAP_CONFIG is not set
+# CONFIG_RT_DEBUG_MODULE_CONFIG is not set
+
+#
+# Inter-Thread communication
+#
+CONFIG_RT_USING_SEMAPHORE=y
+CONFIG_RT_USING_MUTEX=y
+CONFIG_RT_USING_EVENT=y
+CONFIG_RT_USING_MAILBOX=y
+CONFIG_RT_USING_MESSAGEQUEUE=y
+# CONFIG_RT_USING_SIGNALS is not set
+
+#
+# Memory Management
+#
+CONFIG_RT_USING_MEMPOOL=y
+# CONFIG_RT_USING_MEMHEAP is not set
+# CONFIG_RT_USING_NOHEAP is not set
+CONFIG_RT_USING_SMALL_MEM=y
+# CONFIG_RT_USING_SLAB is not set
+# CONFIG_RT_USING_USERHEAP is not set
+CONFIG_RT_USING_MEMTRACE=y
+CONFIG_RT_USING_HEAP=y
+
+#
+# Kernel Device Object
+#
+CONFIG_RT_USING_DEVICE=y
+# CONFIG_RT_USING_DEVICE_OPS is not set
+# CONFIG_RT_USING_INTERRUPT_INFO is not set
+CONFIG_RT_USING_CONSOLE=y
+CONFIG_RT_CONSOLEBUF_SIZE=256
+CONFIG_RT_CONSOLE_DEVICE_NAME="console"
+CONFIG_RT_VER_NUM=0x40003
+# CONFIG_RT_USING_CPU_FFS is not set
+CONFIG_ARCH_IA32=y
+# CONFIG_ARCH_CPU_STACK_GROWS_UPWARD is not set
+
+#
+# RT-Thread Components
+#
+CONFIG_RT_USING_COMPONENTS_INIT=y
+CONFIG_RT_USING_USER_MAIN=y
+CONFIG_RT_MAIN_THREAD_STACK_SIZE=2048
+CONFIG_RT_MAIN_THREAD_PRIORITY=10
+
+#
+# C++ features
+#
+# CONFIG_RT_USING_CPLUSPLUS is not set
+
+#
+# Command shell
+#
+CONFIG_RT_USING_FINSH=y
+CONFIG_FINSH_THREAD_NAME="tshell"
+CONFIG_FINSH_USING_HISTORY=y
+CONFIG_FINSH_HISTORY_LINES=5
+CONFIG_FINSH_USING_SYMTAB=y
+CONFIG_FINSH_USING_DESCRIPTION=y
+# CONFIG_FINSH_ECHO_DISABLE_DEFAULT is not set
+CONFIG_FINSH_THREAD_PRIORITY=20
+CONFIG_FINSH_THREAD_STACK_SIZE=4096
+CONFIG_FINSH_CMD_SIZE=80
+# CONFIG_FINSH_USING_AUTH is not set
+CONFIG_FINSH_USING_MSH=y
+CONFIG_FINSH_USING_MSH_DEFAULT=y
+CONFIG_FINSH_USING_MSH_ONLY=y
+CONFIG_FINSH_ARG_MAX=10
+
+#
+# Device virtual file system
+#
+CONFIG_RT_USING_DFS=y
+CONFIG_DFS_USING_WORKDIR=y
+CONFIG_DFS_FILESYSTEMS_MAX=2
+CONFIG_DFS_FILESYSTEM_TYPES_MAX=2
+CONFIG_DFS_FD_MAX=16
+# CONFIG_RT_USING_DFS_MNTTABLE is not set
+CONFIG_RT_USING_DFS_ELMFAT=y
+
+#
+# elm-chan's FatFs, Generic FAT Filesystem Module
+#
+CONFIG_RT_DFS_ELM_CODE_PAGE=437
+CONFIG_RT_DFS_ELM_WORD_ACCESS=y
+# CONFIG_RT_DFS_ELM_USE_LFN_0 is not set
+# CONFIG_RT_DFS_ELM_USE_LFN_1 is not set
+# CONFIG_RT_DFS_ELM_USE_LFN_2 is not set
+CONFIG_RT_DFS_ELM_USE_LFN_3=y
+CONFIG_RT_DFS_ELM_USE_LFN=3
+CONFIG_RT_DFS_ELM_LFN_UNICODE_0=y
+# CONFIG_RT_DFS_ELM_LFN_UNICODE_1 is not set
+# CONFIG_RT_DFS_ELM_LFN_UNICODE_2 is not set
+# CONFIG_RT_DFS_ELM_LFN_UNICODE_3 is not set
+CONFIG_RT_DFS_ELM_LFN_UNICODE=0
+CONFIG_RT_DFS_ELM_MAX_LFN=255
+CONFIG_RT_DFS_ELM_DRIVES=2
+CONFIG_RT_DFS_ELM_MAX_SECTOR_SIZE=512
+# CONFIG_RT_DFS_ELM_USE_ERASE is not set
+CONFIG_RT_DFS_ELM_REENTRANT=y
+CONFIG_RT_USING_DFS_DEVFS=y
+# CONFIG_RT_USING_DFS_ROMFS is not set
+# CONFIG_RT_USING_DFS_RAMFS is not set
+# CONFIG_RT_USING_DFS_UFFS is not set
+# CONFIG_RT_USING_DFS_JFFS2 is not set
+
+#
+# Device Drivers
+#
+CONFIG_RT_USING_DEVICE_IPC=y
+CONFIG_RT_PIPE_BUFSZ=512
+CONFIG_RT_USING_SYSTEM_WORKQUEUE=y
+CONFIG_RT_SYSTEM_WORKQUEUE_STACKSIZE=2048
+CONFIG_RT_SYSTEM_WORKQUEUE_PRIORITY=23
+CONFIG_RT_USING_SERIAL=y
+CONFIG_RT_SERIAL_USING_DMA=y
+CONFIG_RT_SERIAL_RB_BUFSZ=64
+# CONFIG_RT_USING_CAN is not set
+# CONFIG_RT_USING_HWTIMER is not set
+# CONFIG_RT_USING_CPUTIME is not set
+# CONFIG_RT_USING_I2C is not set
+# CONFIG_RT_USING_PHY is not set
+CONFIG_RT_USING_PIN=y
+# CONFIG_RT_USING_ADC is not set
+# CONFIG_RT_USING_DAC is not set
+# CONFIG_RT_USING_PWM is not set
+# CONFIG_RT_USING_MTD_NOR is not set
+# CONFIG_RT_USING_MTD_NAND is not set
+# CONFIG_RT_USING_PM is not set
+# CONFIG_RT_USING_RTC is not set
+# CONFIG_RT_USING_SDIO is not set
+# CONFIG_RT_USING_SPI is not set
+# CONFIG_RT_USING_WDT is not set
+# CONFIG_RT_USING_AUDIO is not set
+# CONFIG_RT_USING_SENSOR is not set
+# CONFIG_RT_USING_TOUCH is not set
+# CONFIG_RT_USING_HWCRYPTO is not set
+# CONFIG_RT_USING_PULSE_ENCODER is not set
+# CONFIG_RT_USING_INPUT_CAPTURE is not set
+# CONFIG_RT_USING_WIFI is not set
+
+#
+# Using USB
+#
+# CONFIG_RT_USING_USB_HOST is not set
+# CONFIG_RT_USING_USB_DEVICE is not set
+
+#
+# POSIX layer and C standard library
+#
+CONFIG_RT_USING_LIBC=y
+# CONFIG_RT_USING_PTHREADS is not set
+# CONFIG_RT_USING_POSIX is not set
+# CONFIG_RT_USING_MODULE is not set
+
+#
+# Network
+#
+
+#
+# Socket abstraction layer
+#
+# CONFIG_RT_USING_SAL is not set
+
+#
+# Network interface device
+#
+# CONFIG_RT_USING_NETDEV is not set
+
+#
+# light weight TCP/IP stack
+#
+# CONFIG_RT_USING_LWIP is not set
+
+#
+# AT commands
+#
+# CONFIG_RT_USING_AT is not set
+
+#
+# VBUS(Virtual Software BUS)
+#
+# CONFIG_RT_USING_VBUS is not set
+
+#
+# Utilities
+#
+# CONFIG_RT_USING_RYM is not set
+# CONFIG_RT_USING_ULOG is not set
+# CONFIG_RT_USING_UTEST is not set
+
+#
+# RT-Thread online packages
+#
+
+#
+# IoT - internet of things
+#
+# CONFIG_PKG_USING_LORAWAN_DRIVER is not set
+# CONFIG_PKG_USING_PAHOMQTT is not set
+# CONFIG_PKG_USING_UMQTT is not set
+# CONFIG_PKG_USING_WEBCLIENT is not set
+# CONFIG_PKG_USING_WEBNET is not set
+# CONFIG_PKG_USING_MONGOOSE is not set
+# CONFIG_PKG_USING_MYMQTT is not set
+# CONFIG_PKG_USING_KAWAII_MQTT is not set
+# CONFIG_PKG_USING_BC28_MQTT is not set
+# CONFIG_PKG_USING_WEBTERMINAL is not set
+# CONFIG_PKG_USING_CJSON is not set
+# CONFIG_PKG_USING_JSMN is not set
+# CONFIG_PKG_USING_LIBMODBUS is not set
+# CONFIG_PKG_USING_FREEMODBUS is not set
+# CONFIG_PKG_USING_LJSON is not set
+# CONFIG_PKG_USING_EZXML is not set
+# CONFIG_PKG_USING_NANOPB is not set
+
+#
+# Wi-Fi
+#
+
+#
+# Marvell WiFi
+#
+# CONFIG_PKG_USING_WLANMARVELL is not set
+
+#
+# Wiced WiFi
+#
+# CONFIG_PKG_USING_WLAN_WICED is not set
+# CONFIG_PKG_USING_RW007 is not set
+# CONFIG_PKG_USING_COAP is not set
+# CONFIG_PKG_USING_NOPOLL is not set
+# CONFIG_PKG_USING_NETUTILS is not set
+# CONFIG_PKG_USING_CMUX is not set
+# CONFIG_PKG_USING_PPP_DEVICE is not set
+# CONFIG_PKG_USING_AT_DEVICE is not set
+# CONFIG_PKG_USING_ATSRV_SOCKET is not set
+# CONFIG_PKG_USING_WIZNET is not set
+
+#
+# IoT Cloud
+#
+# CONFIG_PKG_USING_ONENET is not set
+# CONFIG_PKG_USING_GAGENT_CLOUD is not set
+# CONFIG_PKG_USING_ALI_IOTKIT is not set
+# CONFIG_PKG_USING_AZURE is not set
+# CONFIG_PKG_USING_TENCENT_IOT_EXPLORER is not set
+# CONFIG_PKG_USING_JIOT-C-SDK is not set
+# CONFIG_PKG_USING_UCLOUD_IOT_SDK is not set
+# CONFIG_PKG_USING_JOYLINK is not set
+# CONFIG_PKG_USING_NIMBLE is not set
+# CONFIG_PKG_USING_OTA_DOWNLOADER is not set
+# CONFIG_PKG_USING_IPMSG is not set
+# CONFIG_PKG_USING_LSSDP is not set
+# CONFIG_PKG_USING_AIRKISS_OPEN is not set
+# CONFIG_PKG_USING_LIBRWS is not set
+# CONFIG_PKG_USING_TCPSERVER is not set
+# CONFIG_PKG_USING_PROTOBUF_C is not set
+# CONFIG_PKG_USING_ONNX_PARSER is not set
+# CONFIG_PKG_USING_ONNX_BACKEND is not set
+# CONFIG_PKG_USING_DLT645 is not set
+# CONFIG_PKG_USING_QXWZ is not set
+# CONFIG_PKG_USING_SMTP_CLIENT is not set
+# CONFIG_PKG_USING_ABUP_FOTA is not set
+# CONFIG_PKG_USING_LIBCURL2RTT is not set
+# CONFIG_PKG_USING_CAPNP is not set
+# CONFIG_PKG_USING_RT_CJSON_TOOLS is not set
+# CONFIG_PKG_USING_AGILE_TELNET is not set
+# CONFIG_PKG_USING_NMEALIB is not set
+# CONFIG_PKG_USING_AGILE_JSMN is not set
+# CONFIG_PKG_USING_PDULIB is not set
+# CONFIG_PKG_USING_BTSTACK is not set
+# CONFIG_PKG_USING_LORAWAN_ED_STACK is not set
+# CONFIG_PKG_USING_WAYZ_IOTKIT is not set
+
+#
+# security packages
+#
+# CONFIG_PKG_USING_MBEDTLS is not set
+# CONFIG_PKG_USING_libsodium is not set
+# CONFIG_PKG_USING_TINYCRYPT is not set
+# CONFIG_PKG_USING_TFM is not set
+# CONFIG_PKG_USING_YD_CRYPTO is not set
+
+#
+# language packages
+#
+# CONFIG_PKG_USING_LUA is not set
+# CONFIG_PKG_USING_JERRYSCRIPT is not set
+# CONFIG_PKG_USING_MICROPYTHON is not set
+
+#
+# multimedia packages
+#
+# CONFIG_PKG_USING_OPENMV is not set
+# CONFIG_PKG_USING_MUPDF is not set
+# CONFIG_PKG_USING_STEMWIN is not set
+# CONFIG_PKG_USING_WAVPLAYER is not set
+# CONFIG_PKG_USING_TJPGD is not set
+# CONFIG_PKG_USING_HELIX is not set
+# CONFIG_PKG_USING_AZUREGUIX is not set
+# CONFIG_PKG_USING_TOUCHGFX2RTT is not set
+
+#
+# tools packages
+#
+# CONFIG_PKG_USING_CMBACKTRACE is not set
+# CONFIG_PKG_USING_EASYFLASH is not set
+# CONFIG_PKG_USING_EASYLOGGER is not set
+# CONFIG_PKG_USING_SYSTEMVIEW is not set
+# CONFIG_PKG_USING_RDB is not set
+# CONFIG_PKG_USING_QRCODE is not set
+# CONFIG_PKG_USING_ULOG_EASYFLASH is not set
+# CONFIG_PKG_USING_ULOG_FILE is not set
+# CONFIG_PKG_USING_LOGMGR is not set
+# CONFIG_PKG_USING_ADBD is not set
+# CONFIG_PKG_USING_COREMARK is not set
+# CONFIG_PKG_USING_DHRYSTONE is not set
+# CONFIG_PKG_USING_MEMORYPERF is not set
+# CONFIG_PKG_USING_NR_MICRO_SHELL is not set
+# CONFIG_PKG_USING_CHINESE_FONT_LIBRARY is not set
+# CONFIG_PKG_USING_LUNAR_CALENDAR is not set
+# CONFIG_PKG_USING_BS8116A is not set
+# CONFIG_PKG_USING_GPS_RMC is not set
+# CONFIG_PKG_USING_URLENCODE is not set
+# CONFIG_PKG_USING_UMCN is not set
+# CONFIG_PKG_USING_LWRB2RTT is not set
+# CONFIG_PKG_USING_CPU_USAGE is not set
+# CONFIG_PKG_USING_GBK2UTF8 is not set
+# CONFIG_PKG_USING_VCONSOLE is not set
+# CONFIG_PKG_USING_KDB is not set
+# CONFIG_PKG_USING_WAMR is not set
+# CONFIG_PKG_USING_MICRO_XRCE_DDS_CLIENT is not set
+# CONFIG_PKG_USING_LWLOG is not set
+# CONFIG_PKG_USING_ANV_TRACE is not set
+# CONFIG_PKG_USING_ANV_MEMLEAK is not set
+# CONFIG_PKG_USING_ANV_TESTSUIT is not set
+# CONFIG_PKG_USING_ANV_BENCH is not set
+
+#
+# system packages
+#
+# CONFIG_PKG_USING_GUIENGINE is not set
+# CONFIG_PKG_USING_CAIRO is not set
+# CONFIG_PKG_USING_PIXMAN is not set
+# CONFIG_PKG_USING_LWEXT4 is not set
+# CONFIG_PKG_USING_PARTITION is not set
+# CONFIG_PKG_USING_FAL is not set
+# CONFIG_PKG_USING_FLASHDB is not set
+# CONFIG_PKG_USING_SQLITE is not set
+# CONFIG_PKG_USING_RTI is not set
+# CONFIG_PKG_USING_LITTLEVGL2RTT is not set
+# CONFIG_PKG_USING_CMSIS is not set
+# CONFIG_PKG_USING_DFS_YAFFS is not set
+# CONFIG_PKG_USING_LITTLEFS is not set
+# CONFIG_PKG_USING_THREAD_POOL is not set
+# CONFIG_PKG_USING_ROBOTS is not set
+# CONFIG_PKG_USING_EV is not set
+# CONFIG_PKG_USING_SYSWATCH is not set
+# CONFIG_PKG_USING_SYS_LOAD_MONITOR is not set
+# CONFIG_PKG_USING_PLCCORE is not set
+# CONFIG_PKG_USING_RAMDISK is not set
+# CONFIG_PKG_USING_MININI is not set
+# CONFIG_PKG_USING_QBOOT is not set
+
+#
+# Micrium: Micrium software products porting for RT-Thread
+#
+# CONFIG_PKG_USING_UCOSIII_WRAPPER is not set
+# CONFIG_PKG_USING_UCOSII_WRAPPER is not set
+# CONFIG_PKG_USING_UC_CRC is not set
+# CONFIG_PKG_USING_UC_CLK is not set
+# CONFIG_PKG_USING_UC_COMMON is not set
+# CONFIG_PKG_USING_UC_MODBUS is not set
+# CONFIG_PKG_USING_PPOOL is not set
+# CONFIG_PKG_USING_OPENAMP is not set
+# CONFIG_PKG_USING_RT_KPRINTF_THREADSAFE is not set
+# CONFIG_PKG_USING_RT_MEMCPY_CM is not set
+# CONFIG_PKG_USING_QFPLIB_M0_FULL is not set
+# CONFIG_PKG_USING_QFPLIB_M0_TINY is not set
+# CONFIG_PKG_USING_QFPLIB_M3 is not set
+# CONFIG_PKG_USING_LPM is not set
+
+#
+# peripheral libraries and drivers
+#
+# CONFIG_PKG_USING_SENSORS_DRIVERS is not set
+# CONFIG_PKG_USING_REALTEK_AMEBA is not set
+# CONFIG_PKG_USING_SHT2X is not set
+# CONFIG_PKG_USING_SHT3X is not set
+# CONFIG_PKG_USING_AS7341 is not set
+# CONFIG_PKG_USING_STM32_SDIO is not set
+# CONFIG_PKG_USING_ICM20608 is not set
+# CONFIG_PKG_USING_U8G2 is not set
+# CONFIG_PKG_USING_BUTTON is not set
+# CONFIG_PKG_USING_PCF8574 is not set
+# CONFIG_PKG_USING_SX12XX is not set
+# CONFIG_PKG_USING_SIGNAL_LED is not set
+# CONFIG_PKG_USING_LEDBLINK is not set
+# CONFIG_PKG_USING_LITTLED is not set
+# CONFIG_PKG_USING_LKDGUI is not set
+# CONFIG_PKG_USING_NRF5X_SDK is not set
+# CONFIG_PKG_USING_NRFX is not set
+# CONFIG_PKG_USING_WM_LIBRARIES is not set
+# CONFIG_PKG_USING_KENDRYTE_SDK is not set
+# CONFIG_PKG_USING_INFRARED is not set
+# CONFIG_PKG_USING_ROSSERIAL is not set
+# CONFIG_PKG_USING_AGILE_BUTTON is not set
+# CONFIG_PKG_USING_AGILE_LED is not set
+# CONFIG_PKG_USING_AT24CXX is not set
+# CONFIG_PKG_USING_MOTIONDRIVER2RTT is not set
+# CONFIG_PKG_USING_AD7746 is not set
+# CONFIG_PKG_USING_PCA9685 is not set
+# CONFIG_PKG_USING_I2C_TOOLS is not set
+# CONFIG_PKG_USING_NRF24L01 is not set
+# CONFIG_PKG_USING_TOUCH_DRIVERS is not set
+# CONFIG_PKG_USING_MAX17048 is not set
+# CONFIG_PKG_USING_RPLIDAR is not set
+# CONFIG_PKG_USING_AS608 is not set
+# CONFIG_PKG_USING_RC522 is not set
+# CONFIG_PKG_USING_WS2812B is not set
+# CONFIG_PKG_USING_EMBARC_BSP is not set
+# CONFIG_PKG_USING_EXTERN_RTC_DRIVERS is not set
+# CONFIG_PKG_USING_MULTI_RTIMER is not set
+# CONFIG_PKG_USING_MAX7219 is not set
+# CONFIG_PKG_USING_BEEP is not set
+# CONFIG_PKG_USING_EASYBLINK is not set
+# CONFIG_PKG_USING_PMS_SERIES is not set
+# CONFIG_PKG_USING_CAN_YMODEM is not set
+# CONFIG_PKG_USING_LORA_RADIO_DRIVER is not set
+# CONFIG_PKG_USING_QLED is not set
+# CONFIG_PKG_USING_PAJ7620 is not set
+# CONFIG_PKG_USING_AGILE_CONSOLE is not set
+# CONFIG_PKG_USING_LD3320 is not set
+# CONFIG_PKG_USING_WK2124 is not set
+# CONFIG_PKG_USING_LY68L6400 is not set
+# CONFIG_PKG_USING_DM9051 is not set
+# CONFIG_PKG_USING_SSD1306 is not set
+# CONFIG_PKG_USING_QKEY is not set
+# CONFIG_PKG_USING_RS485 is not set
+# CONFIG_PKG_USING_NES is not set
+# CONFIG_PKG_USING_VIRTUAL_SENSOR is not set
+# CONFIG_PKG_USING_VDEVICE is not set
+# CONFIG_PKG_USING_SGM706 is not set
+
+#
+# miscellaneous packages
+#
+# CONFIG_PKG_USING_LIBCSV is not set
+# CONFIG_PKG_USING_OPTPARSE is not set
+# CONFIG_PKG_USING_FASTLZ is not set
+# CONFIG_PKG_USING_MINILZO is not set
+# CONFIG_PKG_USING_QUICKLZ is not set
+# CONFIG_PKG_USING_LZMA is not set
+# CONFIG_PKG_USING_MULTIBUTTON is not set
+# CONFIG_PKG_USING_FLEXIBLE_BUTTON is not set
+# CONFIG_PKG_USING_CANFESTIVAL is not set
+# CONFIG_PKG_USING_ZLIB is not set
+# CONFIG_PKG_USING_DSTR is not set
+# CONFIG_PKG_USING_TINYFRAME is not set
+# CONFIG_PKG_USING_KENDRYTE_DEMO is not set
+# CONFIG_PKG_USING_DIGITALCTRL is not set
+# CONFIG_PKG_USING_UPACKER is not set
+# CONFIG_PKG_USING_UPARAM is not set
+
+#
+# samples: kernel and components samples
+#
+# CONFIG_PKG_USING_KERNEL_SAMPLES is not set
+# CONFIG_PKG_USING_FILESYSTEM_SAMPLES is not set
+# CONFIG_PKG_USING_NETWORK_SAMPLES is not set
+# CONFIG_PKG_USING_PERIPHERAL_SAMPLES is not set
+# CONFIG_PKG_USING_HELLO is not set
+# CONFIG_PKG_USING_VI is not set
+# CONFIG_PKG_USING_KI is not set
+# CONFIG_PKG_USING_NNOM is not set
+# CONFIG_PKG_USING_LIBANN is not set
+# CONFIG_PKG_USING_ELAPACK is not set
+# CONFIG_PKG_USING_ARMv7M_DWT is not set
+# CONFIG_PKG_USING_VT100 is not set
+# CONFIG_PKG_USING_ULAPACK is not set
+# CONFIG_PKG_USING_UKAL is not set
+# CONFIG_PKG_USING_CRCLIB is not set
+
+#
+# games: games run on RT-Thread console
+#
+# CONFIG_PKG_USING_THREES is not set
+# CONFIG_PKG_USING_2048 is not set
+# CONFIG_PKG_USING_SNAKE is not set
+# CONFIG_PKG_USING_TETRIS is not set
+# CONFIG_PKG_USING_LWGPS is not set
+# CONFIG_PKG_USING_TENSORFLOWLITEMICRO is not set
+# CONFIG_PKG_USING_STATE_MACHINE is not set
+# CONFIG_PKG_USING_MCURSES is not set
+# CONFIG_PKG_USING_COWSAY is not set
+CONFIG_IA32=y
diff --git a/bsp/x86/Kconfig b/bsp/x86/Kconfig
new file mode 100644
index 0000000000..e8ac6055e5
--- /dev/null
+++ b/bsp/x86/Kconfig
@@ -0,0 +1,26 @@
+mainmenu "RT-Thread Configuration"
+
+config $BSP_DIR
+    string
+    option env="BSP_ROOT"
+    default "."
+
+config $RTT_DIR
+    string
+    option env="RTT_ROOT"
+    default "../.."
+
+config $PKGS_DIR
+    string
+    option env="PKGS_ROOT"
+    default "packages"
+
+source "$RTT_DIR/Kconfig"
+source "$PKGS_DIR/Kconfig"
+
+config IA32
+    bool 
+    select ARCH_IA32
+    select RT_USING_COMPONENTS_INIT
+    select RT_USING_USER_MAIN
+    default y
diff --git a/bsp/x86/Makefile b/bsp/x86/Makefile
deleted file mode 100644
index eb4654193b..0000000000
--- a/bsp/x86/Makefile
+++ /dev/null
@@ -1,46 +0,0 @@
-
-CC = gcc -O0 -m32 -fno-builtin -fno-stack-protector -nostdinc -nostdlib
-LD = ld -melf_i386 -nostdlib
-
-all: rtthread rtsym exe dll floppy.img
-	@mkdir -p tmp
-	@sudo mount -t vfat floppy.img tmp -o loop
-	@sudo cp -fv rtthread.elf tmp/boot/oskernel
-	@sudo rm tmp/bin/* -fr
-	@sudo cp out/*.mo tmp/bin/ -fv
-	@sudo umount tmp
-
-rtthread:
-	@scons
-
-rtsym:
-	@./src/extract.sh ./rtthread-ia32.map ./src/rt_thread_sym.h
-
-obj:
-	mkdir -p obj
-
-out:
-	mkdir -p out
-
-dll: obj out
-	$(CC) -c -fPIC -Isrc src/hello.c -o out/hello.o
-	$(CC) -s -Wl,-shared,-melf_i386,--entry=main -o out/hello.mo out/hello.o
-
-disasm: obj out
-	$(CC) -shared -S -fPIC -Isrc src/hello.c -o obj/hello.s
-	cat obj/hello.s
-	objdump --disassemble out/hello.mo
-
-exe: obj out
-
-
-clean:
-	scons -c clean
-	rm -fr build rtthread* out obj
-
-floppy.img:
-	wget https://github.com/bajdcc/tinix/raw/master/floppy.img
-
-# https://en.wikibooks.org/wiki/QEMU/Devices/Network
-run:
-	qemu-system-i386 -fda floppy.img -boot a -m 64M -serial stdio -net nic,model=ne2k_pci
diff --git a/bsp/x86/SConscript b/bsp/x86/SConscript
index fe0ae941ae..3d15055d62 100644
--- a/bsp/x86/SConscript
+++ b/bsp/x86/SConscript
@@ -1,8 +1,7 @@
-# for module compiling
 import os
-Import('RTT_ROOT')
+from building import *
 
-cwd = str(Dir('#'))
+cwd = GetCurrentDir()
 objs = []
 list = os.listdir(cwd)
 
diff --git a/bsp/x86/applications/application.c b/bsp/x86/applications/application.c
deleted file mode 100644
index 8928e6357e..0000000000
--- a/bsp/x86/applications/application.c
+++ /dev/null
@@ -1,86 +0,0 @@
-/*
- * File      : application.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2015, RT-Thread Development Team
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Change Logs:
- * Date           Author       Notes
- * 2009-01-05     Bernard      the first version
- */
-
-#include <rtthread.h>
-
-#ifdef RT_USING_DFS
-#include <dfs_fs.h>
-#include <dfs.h>
-#include "floppy.h"
-#ifdef RT_USING_MODULE
-#include <rtm.h>
-#endif
-extern int elm_init(void);
-#endif
-
-/* components initialization for simulator */
-void components_init(void)
-{
-#ifdef RT_USING_DFS
-	rt_floppy_init();
-	/* initialize the device file system */
-	dfs_init();
-
-#ifdef RT_USING_DFS_ELMFAT
-	/* initialize the elm chan FatFS file system*/
-	elm_init();
-#endif
-
-#ifdef RT_USING_MODULE
-	rt_system_dlmodule_init();
-#endif
-#endif
-}
-void rt_init_thread_entry(void *parameter)
-{
-    components_init();
-
-    /* File system Initialization */
-#ifdef RT_USING_DFS
-    {
-
-#ifdef RT_USING_DFS_ELMFAT
-        /* mount sd card fatfs as root directory */
-        if (dfs_mount("floppy", "/", "elm", 0, 0) == 0)
-            rt_kprintf("fatfs initialized!\n");
-        else
-            rt_kprintf("fatfs initialization failed!\n");
-#endif
-    }
-#endif
-}
-
-int rt_application_init()
-{
-    rt_thread_t tid;
-
-    tid = rt_thread_create("init",
-                           rt_init_thread_entry, RT_NULL,
-                           2048, RT_THREAD_PRIORITY_MAX / 3, 20);
-
-    if (tid != RT_NULL)
-        rt_thread_startup(tid);
-
-    return 0;
-}
diff --git a/bsp/x86/applications/main.c b/bsp/x86/applications/main.c
new file mode 100644
index 0000000000..86aadd5a7b
--- /dev/null
+++ b/bsp/x86/applications/main.c
@@ -0,0 +1,16 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ */
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(void)
+{
+    printf("hello!\n");
+
+    return 0;
+}
diff --git a/bsp/x86/applications/mnt.c b/bsp/x86/applications/mnt.c
new file mode 100644
index 0000000000..3ca04871f8
--- /dev/null
+++ b/bsp/x86/applications/mnt.c
@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ */
+#include <rtthread.h>
+
+extern int rt_floppy_init(void);
+
+int mnt_init(void)
+{
+    rt_floppy_init();
+
+    return 0;
+}
diff --git a/bsp/x86/applications/startup.c b/bsp/x86/applications/startup.c
deleted file mode 100644
index 475273267f..0000000000
--- a/bsp/x86/applications/startup.c
+++ /dev/null
@@ -1,103 +0,0 @@
-/*
- * File      : startup.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2012, RT-Thread Develop Team
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.fayfayspace.org/license/LICENSE.
- *
- * Change Logs:
- * Date           Author       Notes
- * 2006-09-15     QiuYi        the first version
- * 2006-10-10     Bernard      update to 0.2.2 version
- */
-
-#include <rtthread.h>
-#include <rthw.h>
-
-#include "board.h"
-
-extern void rt_hw_console_init(void);
-extern void rt_hw_board_init(void);
-extern int  rt_application_init(void);
-//extern void rt_hw_interrupt_init(void);
-//extern void rt_system_timer_init(void);
-//extern void rt_system_scheduler_init(void);
-//extern void rt_thread_idle_init(void);
-
-#ifdef RT_USING_FINSH
-extern int finsh_system_init(void);
-extern void finsh_set_device(const char *device);
-#endif
-
-extern unsigned char __bss_start[];
-extern unsigned char __bss_end[];
-
-/**
- * @addtogroup QEMU
- */
-
- /*@{*/
-
-/* clear .bss */
-void rt_hw_clear_bss(void)
-{
-    unsigned char *dst;
-    dst = __bss_start;
-    while (dst < __bss_end)
-        *dst++ = 0;
-}
-
-/**
- * This function will startup RT-Thread RTOS
- */
-void rtthread_startup(void)
-{
-    /* clear .bss */
-    rt_hw_clear_bss();
-
-    /* init hardware interrupt */
-    rt_hw_interrupt_init();
-
-    /* init the console */
-    rt_hw_console_init();
-    rt_console_set_device("console");
-
-    /* init board */
-    rt_hw_board_init();
-
-    rt_show_version();
-
-    /* init timer system */
-    rt_system_timer_init();
-
-    /* init memory system */
-#ifdef RT_USING_HEAP
-    /* RAM 16M */
-    rt_system_heap_init((void *)&__bss_end, (void *)(1024UL*1024*8));
-#endif
-
-    /* init scheduler system */
-    rt_system_scheduler_init();
-
-    /* init application */
-    rt_application_init();
-
-#ifdef RT_USING_FINSH
-    /* init finsh */
-    finsh_system_init();
-    finsh_set_device("console");
-#endif
-
-    /* init idle thread */
-    rt_thread_idle_init();
-
-    /* start scheduler */
-    rt_system_scheduler_start();
-
-    /* never reach here */
-    return ;
-}
-
-/*@}*/
diff --git a/bsp/x86/drivers/board.c b/bsp/x86/drivers/board.c
index 211ae1832a..30aba8be54 100644
--- a/bsp/x86/drivers/board.c
+++ b/bsp/x86/drivers/board.c
@@ -1,11 +1,7 @@
 /*
- * File      : board.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.fayfayspace.org/license/LICENSE.
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
@@ -13,62 +9,81 @@
  * 2006-10-10     Bernard      add hardware related of finsh
  */
 
-#include <rtthread.h>
 #include <rthw.h>
+#include <rtthread.h>
 
 #include <bsp.h>
 
+extern unsigned char __bss_start[];
+extern unsigned char __bss_end[];
+extern void rt_hw_console_init(void);
+
 /**
  * @addtogroup QEMU
  */
 /*@{*/
-
 static void rt_timer_handler(int vector, void* param)
 {
-	rt_tick_increase();
+    rt_tick_increase();
 }
 
 #ifdef RT_USING_HOOK
 static void idle_hook(void)
 {
-	asm volatile("sti; hlt": : :"memory");
+    asm volatile("sti; hlt": : :"memory");
 }
 #endif
 
+/* clear .bss */
+void rt_hw_clear_bss(void)
+{
+    unsigned char *dst;
+    dst = __bss_start;
+    while (dst < __bss_end)
+        *dst++ = 0;
+}
+
 /**
  * This function will init QEMU
  *
  */
 void rt_hw_board_init(void)
 {
-	/* initialize 8253 clock to interrupt 1000 times/sec */
-	outb(TIMER_MODE, TIMER_SEL0|TIMER_RATEGEN|TIMER_16BIT);
-	outb(IO_TIMER1, TIMER_DIV(RT_TICK_PER_SECOND) % 256);
-	outb(IO_TIMER1, TIMER_DIV(RT_TICK_PER_SECOND) / 256);
+    /* clear .bss */
+    rt_hw_clear_bss();
+
+    /* init hardware interrupt */
+    rt_hw_interrupt_init();
 
-	/* install interrupt handler */
-	rt_hw_interrupt_install(INTTIMER0, rt_timer_handler, RT_NULL, "tick");
-	rt_hw_interrupt_umask(INTTIMER0);
+    /* init the console */
+    rt_hw_console_init();
+    rt_console_set_device("console");
+
+    /* initialize 8253 clock to interrupt 1000 times/sec */
+    outb(TIMER_MODE, TIMER_SEL0|TIMER_RATEGEN|TIMER_16BIT);
+    outb(IO_TIMER1, TIMER_DIV(RT_TICK_PER_SECOND) % 256);
+    outb(IO_TIMER1, TIMER_DIV(RT_TICK_PER_SECOND) / 256);
+
+    /* install interrupt handler */
+    rt_hw_interrupt_install(INTTIMER0, rt_timer_handler, RT_NULL, "tick");
+    rt_hw_interrupt_umask(INTTIMER0);
+
+    /* init memory system */
+#ifdef RT_USING_HEAP
+    /* RAM 16M */
+    rt_system_heap_init((void *)&__bss_end, (void *)(1024UL*1024*8));
+#endif
 
 #ifdef RT_USING_HOOK
-	rt_thread_idle_sethook(idle_hook);
+    rt_thread_idle_sethook(idle_hook);
 #endif
 }
 
-void restart(void)
+static int reboot(void)
 {
     outb(KBSTATP, 0xFE); /* pulse reset low */
-    while(1);
-}
-
-#ifdef RT_USING_FINSH
-#include <finsh.h>
-FINSH_FUNCTION_EXPORT(restart, reboot PC)
 
-void reboot(void)
-{
-    restart();
+    return 0;
 }
-FINSH_FUNCTION_EXPORT(reboot, reboot PC)
-#endif
+MSH_CMD_EXPORT(reboot, reboot system);
 /*@}*/
diff --git a/bsp/x86/drivers/board.h b/bsp/x86/drivers/board.h
index bc79f9ccfb..96e1cb15af 100644
--- a/bsp/x86/drivers/board.h
+++ b/bsp/x86/drivers/board.h
@@ -1,11 +1,7 @@
 /*
- * File      : board.h
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006, RT-Thread Develop Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://openlab.rt-thread.com/license/LICENSE
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/bsp/x86/drivers/console.c b/bsp/x86/drivers/console.c
index f5c4fe530b..b783872bae 100644
--- a/bsp/x86/drivers/console.c
+++ b/bsp/x86/drivers/console.c
@@ -1,11 +1,7 @@
 /*
- * File      : console.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://openlab.rt-thread.com/license/LICENSE
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
@@ -218,47 +214,46 @@ static rt_size_t rt_console_read(rt_device_t dev, rt_off_t pos, void* buffer, rt
 static void rt_console_isr(int vector, void* param)
 {
     char c;
-	rt_bool_t ret;
+    rt_bool_t ret;
     rt_base_t level;
 
-	if(INTUART0_RX == vector)
-	{
-		c = rt_serial_getc();
-		ret = RT_TRUE;
-	}
-	else
-	{
-		rt_keyboard_isr();
-
-		ret = rt_keyboard_getc(&c);
-	}
+    if(INTUART0_RX == vector)
+    {
+        c = rt_serial_getc();
+        ret = RT_TRUE;
+    }
+    else
+    {
+        rt_keyboard_isr();
+        ret = rt_keyboard_getc(&c);
+    }
 
-	if(ret == RT_FALSE)
-	{
-		/* do nothing */
-	}
-	else
-	{
-		/* disable interrupt */
-		level = rt_hw_interrupt_disable();
+    if(ret == RT_FALSE)
+    {
+        /* do nothing */
+    }
+    else
+    {
+        /* disable interrupt */
+        level = rt_hw_interrupt_disable();
 
-		/* save character */
-		rx_buffer[save_index] = c;
-		save_index ++;
-		if (save_index >= CONSOLE_RX_BUFFER_SIZE)
-			save_index = 0;
+        /* save character */
+        rx_buffer[save_index] = c;
+        save_index ++;
+        if (save_index >= CONSOLE_RX_BUFFER_SIZE)
+            save_index = 0;
 
-		/* if the next position is read index, discard this 'read char' */
-		if (save_index == read_index)
-		{
-			read_index ++;
-			if (read_index >= CONSOLE_RX_BUFFER_SIZE)
-				read_index = 0;
-		}
+        /* if the next position is read index, discard this 'read char' */
+        if (save_index == read_index)
+        {
+            read_index ++;
+            if (read_index >= CONSOLE_RX_BUFFER_SIZE)
+                read_index = 0;
+        }
 
-		/* enable interrupt */
-		rt_hw_interrupt_enable(level);
-	}
+        /* enable interrupt */
+        rt_hw_interrupt_enable(level);
+    }
 
     /* invoke callback */
     if (console_device.rx_indicate != RT_NULL)
@@ -267,29 +262,25 @@ static void rt_console_isr(int vector, void* param)
 
         /* get rx length */
         rx_length = read_index > save_index ?
-			CONSOLE_RX_BUFFER_SIZE - read_index + save_index :
-			save_index - read_index;
+            CONSOLE_RX_BUFFER_SIZE - read_index + save_index :
+            save_index - read_index;
 
         if(rx_length > 0)
         {
             console_device.rx_indicate(&console_device, rx_length);
         }
     }
-    else
-    {
-
-    }
 }
 
 /**
  * This function initializes console
  *
  */
-void rt_hw_console_init(void)
+int rt_hw_console_init(void)
 {
     rt_cga_init();
-	rt_serial_init();
-	init_keyboard();
+    rt_serial_init();
+    init_keyboard();
 
     /* install  keyboard isr */
     rt_hw_interrupt_install(INTKEYBOARD, rt_console_isr, RT_NULL, "kbd");
@@ -311,9 +302,12 @@ void rt_hw_console_init(void)
 
     /* register a character device */
     rt_device_register(&console_device,
-                              "console",
-                              RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX | RT_DEVICE_FLAG_STREAM);
+                        "console",
+                        RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX | RT_DEVICE_FLAG_STREAM);
+
+    return 0;
 }
+INIT_DEVICE_EXPORT(rt_hw_console_init);
 
 /**
  * This function is used to display a string on console, normally, it's
diff --git a/bsp/x86/drivers/dma.h b/bsp/x86/drivers/dma.h
index f1a8563cb1..3e5e9b08d1 100644
--- a/bsp/x86/drivers/dma.h
+++ b/bsp/x86/drivers/dma.h
@@ -1,3 +1,10 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ */
 #ifndef _DMA_H
 #define _DMA_H
 
diff --git a/bsp/x86/drivers/floppy.c b/bsp/x86/drivers/floppy.c
index c7876a68f8..f4675b9194 100644
--- a/bsp/x86/drivers/floppy.c
+++ b/bsp/x86/drivers/floppy.c
@@ -1,4 +1,10 @@
-
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ */
 #include <rtthread.h>
 #include <rthw.h>
 
@@ -17,7 +23,6 @@ typedef rt_int32_t s32;
 #include "floppy.h"
 #include "dma.h"
 
-#define NULL RT_NULL
 #define SECTOR_SIZE 512
 #define panic(str,...) do { rt_kprintf("panic::" str,##__VA_ARGS__); while(1); } while(0)
 
@@ -128,17 +133,17 @@ u32 floppy_get_info(void)
     {
     case 0x02: // 1.2MB
         floppy_type = "1.2MB";
-		floppy_size = 2458*512;
+        floppy_size = 2458*512;
     break;
 
     case 0x04: // 1.44MB       标准软盘
         floppy_type = "1.44MB";
-		floppy_size = 2880*512;
+        floppy_size = 2880*512;
         break;
 
     case 0x05: // 2.88MB
         floppy_type = "2.88MB";
-		floppy_size = 2*2880*512;
+        floppy_size = 2*2880*512;
         break;
     }
     return 1;
@@ -261,32 +266,32 @@ static rt_err_t rt_floppy_close(rt_device_t dev)
  */
 static rt_size_t rt_floppy_read(rt_device_t device, rt_off_t position, void *buffer, rt_size_t size)
 {
-	rt_size_t doSize = size;
+    rt_size_t doSize = size;
 
     rt_mutex_take(&lock, RT_WAITING_FOREVER);
-	while(size>0)
-	{
-		floppy_read_cmd(position);
+    while(size>0)
+    {
+        floppy_read_cmd(position);
 
-		rt_sem_take(&sem, RT_WAITING_FOREVER); /* waiting isr sem forever */
+        rt_sem_take(&sem, RT_WAITING_FOREVER); /* waiting isr sem forever */
 
-		floppy_result();
-		io_delay();
+        floppy_result();
+        io_delay();
 
-		if(ST1 != 0 || ST2 != 0)
-		{
-			panic("ST0 %d ST1 %d ST2 %d\n",ST0,ST1,ST2);
-		}
+        if(ST1 != 0 || ST2 != 0)
+        {
+            panic("ST0 %d ST1 %d ST2 %d\n",ST0,ST1,ST2);
+        }
     
-		rt_memcpy(buffer, floppy_buffer, 512);
+        rt_memcpy(buffer, floppy_buffer, 512);
 
-		floppy_motorOff();
-		io_delay();
-		
-		position += 1;
-		size     -= 1;
-	}
-	rt_mutex_release(&lock);
+        floppy_motorOff();
+        io_delay();
+        
+        position += 1;
+        size     -= 1;
+    }
+    rt_mutex_release(&lock);
 
     return doSize;
 }
@@ -298,7 +303,7 @@ static rt_size_t rt_floppy_read(rt_device_t device, rt_off_t position, void *buf
 static rt_size_t rt_floppy_write(rt_device_t device, rt_off_t position, const void *buffer, rt_size_t size)
 {
     rt_mutex_take(&lock, RT_WAITING_FOREVER);
-	panic("FIXME:I don't know how!\n");
+    panic("FIXME:I don't know how!\n");
     rt_mutex_release(&lock);
     return size;
 }
@@ -325,9 +330,9 @@ static rt_err_t rt_floppy_control(rt_device_t dev, int cmd, void *args)
 
 static void rt_floppy_isr(int vector, void* param)
 {
-	(void)vector;
-	(void)param;
-	rt_sem_release(&sem);
+    (void)vector;
+    (void)param;
+    rt_sem_release(&sem);
 }
 
 void rt_floppy_init(void)
@@ -335,9 +340,9 @@ void rt_floppy_init(void)
     struct rt_device *device;
 
     rt_mutex_init(&lock,"fdlock", RT_IPC_FLAG_FIFO);
-	rt_sem_init(&sem, "fdsem", 0, RT_IPC_FLAG_FIFO);
+    rt_sem_init(&sem, "fdsem", 0, RT_IPC_FLAG_FIFO);
 
-	rt_hw_interrupt_install(FLOPPY_IRQ, rt_floppy_isr, RT_NULL, "floppy");
+    rt_hw_interrupt_install(FLOPPY_IRQ, rt_floppy_isr, RT_NULL, "floppy");
     rt_hw_interrupt_umask(FLOPPY_IRQ);
 
     floppy_get_info();
diff --git a/bsp/x86/drivers/floppy.h b/bsp/x86/drivers/floppy.h
index f619508c43..86de750133 100644
--- a/bsp/x86/drivers/floppy.h
+++ b/bsp/x86/drivers/floppy.h
@@ -1,3 +1,10 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ */
 #ifndef _FLOPPY_H
 #define _FLOPPY_H
 
diff --git a/bsp/x86/drivers/include/bsp.h b/bsp/x86/drivers/include/bsp.h
index 724f518c6e..93e409dbfa 100644
--- a/bsp/x86/drivers/include/bsp.h
+++ b/bsp/x86/drivers/include/bsp.h
@@ -1,11 +1,7 @@
 /*
- * File      : bsp.h
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006, RT-Thread Develop Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://openlab.rt-thread.com/license/LICENSE
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
@@ -60,86 +56,86 @@ extern "C" {
 #define T_DEVICE	 		7		/* device not available */
 #define T_DBLFLT	 		8		/* double fault */
 /* 9 is reserved */
-#define T_TSS				10		/* invalid task switch segment */
-#define T_SEGNP				11		/* segment not present */
-#define T_STACK	 			12		/* stack exception */
-#define T_GPFLT				13		/* genernal protection fault */
-#define T_PGFLT				14		/* page fault */
+#define T_TSS			10		/* invalid task switch segment */
+#define T_SEGNP			11		/* segment not present */
+#define T_STACK	 		12		/* stack exception */
+#define T_GPFLT			13		/* genernal protection fault */
+#define T_PGFLT			14		/* page fault */
 /* 15 is reserved */
-#define T_FPERR	 			16		/* floating point error */
-#define T_ALIGN				17		/* aligment check */
-#define T_MCHK				18		/* machine check */
-#define T_DEFAULT			500		/* catchall */
+#define T_FPERR	 		16		/* floating point error */
+#define T_ALIGN			17		/* aligment check */
+#define T_MCHK			18		/* machine check */
+#define T_DEFAULT		500		/* catchall */
 
-#define INTTIMER0			0
-#define INTKEYBOARD			1
-#define INTUART0_RX			4
-#define	CLOCK_IRQ	0
+#define INTTIMER0		0
+#define INTKEYBOARD		1
+#define INTUART0_RX		4
+#define	CLOCK_IRQ		0
 #define	KEYBOARD_IRQ	1
-#define	CASCADE_IRQ	2	/* cascade enable for 2nd AT controller */
-#define	ETHER_IRQ	3	/* default ethernet interrupt vector */
+#define	CASCADE_IRQ		2	/* cascade enable for 2nd AT controller */
+#define	ETHER_IRQ		3	/* default ethernet interrupt vector */
 #define	SECONDARY_IRQ	3	/* RS232 interrupt vector for port 2 */
-#define	RS232_IRQ	4	/* RS232 interrupt vector for port 1 */
-#define	XT_WINI_IRQ	5	/* xt winchester */
-#define	FLOPPY_IRQ	6	/* floppy disk */
-#define	PRINTER_IRQ	7
-#define	AT_WINI_IRQ	14	/* at winchester */
+#define	RS232_IRQ		4	/* RS232 interrupt vector for port 1 */
+#define	XT_WINI_IRQ		5	/* xt winchester */
+#define	FLOPPY_IRQ		6	/* floppy disk */
+#define	PRINTER_IRQ		7
+#define	AT_WINI_IRQ		14	/* at winchester */
 /* I/O Addresses of the two 8259A programmable interrupt controllers */
-#define IO_PIC1 			0x20 	/* Master(IRQs 0-7) */
-#define IO_PIC2 			0xa0	/* Slave(IRQs 8-15) */
-#define IRQ_SLAVE 			0x2		/* IRQ at which slave connects to master */
-#define IRQ_OFFSET 			0x20	/* IRQ 0 corresponds to int IRQ_OFFSET */
+#define IO_PIC1 		0x20 	/* Master(IRQs 0-7) */
+#define IO_PIC2 		0xa0	/* Slave(IRQs 8-15) */
+#define IRQ_SLAVE 		0x2		/* IRQ at which slave connects to master */
+#define IRQ_OFFSET 		0x20	/* IRQ 0 corresponds to int IRQ_OFFSET */
 
-#define MAX_HANDLERS		16		/*max number of isr handler*/
+#define MAX_HANDLERS	16		/*max number of isr handler*/
 
 /*******************************************************************/
 /* CRT Register */
 /*******************************************************************/
-#define MONO_BASE			0x3b4
-#define MONO_BUF			0xb0000
-#define CGA_BASE			0x3d4
-#define CGA_BUF				0xb8000
+#define MONO_BASE		0x3b4
+#define MONO_BUF		0xb0000
+#define CGA_BASE		0x3d4
+#define CGA_BUF			0xb8000
 
-#define CRT_ROWS			25
-#define CRT_COLS			80
-#define CRT_SIZE				(CRT_ROWS * CRT_COLS)
+#define CRT_ROWS		25
+#define CRT_COLS		80
+#define CRT_SIZE		(CRT_ROWS * CRT_COLS)
 
 /*******************************************************************/
 /* Keyboard Register */
 /*******************************************************************/
-#define	KBSTATP				0x64	/* kbd controller status port(I) */
-#define	KBS_DIB				0x01	/* kbd data in buffer */
-#define	KBDATAP				0x60	/* kbd data port(I) */
+#define	KBSTATP			0x64	/* kbd controller status port(I) */
+#define	KBS_DIB			0x01	/* kbd data in buffer */
+#define	KBDATAP			0x60	/* kbd data port(I) */
 /* AT keyboard */
 /* 8042 ports */
-#define	KB_DATA		0x60	/* I/O port for keyboard data
-					Read : Read Output Buffer 
-					Write: Write Input Buffer(8042 Data&8048 Command) */
-#define	KB_CMD		0x64	/* I/O port for keyboard command
-					Read : Read Status Register
-					Write: Write Input Buffer(8042 Command) */
-#define	LED_CODE	0xED
-#define	KB_ACK		0xFA
+#define	KB_DATA			0x60	/* I/O port for keyboard data
+                                 * Read : Read Output Buffer 
+                                 * Write: Write Input Buffer(8042 Data&8048 Command) */
+#define	KB_CMD			0x64	/* I/O port for keyboard command
+                                 * Read : Read Status Register
+                                 * Write: Write Input Buffer(8042 Command) */
+#define	LED_CODE		0xED
+#define	KB_ACK			0xFA
 
 /*******************************************************************/
 /* Serial Register */
 /*******************************************************************/
 /*Serial I/O code */
-#define COM1				0x3F8
-#define COMSTATUS			5
-#define COMDATA				0x01
-#define COMREAD				0
-#define COMWRITE			0
+#define COM1			0x3F8
+#define COMSTATUS		5
+#define COMDATA			0x01
+#define COMREAD			0
+#define COMWRITE		0
 
 /* Bits definition of the Line Status Register (LSR)*/
-#define DR					0x01	/* Data Ready */
-#define OE					0x02	/* Overrun Error */
-#define PE					0x04	/* Parity Error */
-#define FE					0x08	/* Framing Error */
-#define BI					0x10	/* Break Interrupt */
-#define THRE				0x20	/* Transmitter Holding Register Empty */
-#define TEMT				0x40	/* Transmitter Empty */
-#define ERFIFO				0x80	/* Error receive Fifo */
+#define DR				0x01	/* Data Ready */
+#define OE				0x02	/* Overrun Error */
+#define PE				0x04	/* Parity Error */
+#define FE				0x08	/* Framing Error */
+#define BI				0x10	/* Break Interrupt */
+#define THRE			0x20	/* Transmitter Holding Register Empty */
+#define TEMT			0x40	/* Transmitter Empty */
+#define ERFIFO			0x80	/* Error receive Fifo */
 
 #ifdef __cplusplus
 }
diff --git a/bsp/x86/drivers/include/grub.h b/bsp/x86/drivers/include/grub.h
index dcfa36b819..d5a84a48da 100644
--- a/bsp/x86/drivers/include/grub.h
+++ b/bsp/x86/drivers/include/grub.h
@@ -1,11 +1,7 @@
 /*
- * File      : grub.h
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006, RT-Thread Develop Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://openlab.rt-thread.com/license/LICENSE
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
@@ -29,63 +25,63 @@
 /* the multiboot header.  */
 typedef struct multiboot_header
 {
-	unsigned long magic;
-	unsigned long flags;
-	unsigned long checksum;
-	unsigned long header_addr;
-	unsigned long load_addr;
-	unsigned long load_end_addr;
-	unsigned long bss_end_addr;
-	unsigned long entry_addr;
+    unsigned long magic;
+    unsigned long flags;
+    unsigned long checksum;
+    unsigned long header_addr;
+    unsigned long load_addr;
+    unsigned long load_end_addr;
+    unsigned long bss_end_addr;
+    unsigned long entry_addr;
 } multiboot_header_t;
 
 /* the section header table for elf.  */
 typedef struct elf_section_header_table
 {
-	unsigned long num;
-	unsigned long size;
-	unsigned long addr;
-	unsigned long shndx;
+    unsigned long num;
+    unsigned long size;
+    unsigned long addr;
+    unsigned long shndx;
 } elf_section_header_table_t;
 
 /* the multiboot information.  */
 typedef struct multiboot_info
 {
-	unsigned long flags;
-	unsigned long mem_lower;
-	unsigned long mem_upper;
-	unsigned long boot_device;
-	unsigned long cmdline;
-	unsigned long mods_count;
-	unsigned long mods_addr;
-	union
-	{
-		aout_symbol_table_t aout_sym;
-		elf_section_header_table_t elf_sec;
-	} u;
-	unsigned long mmap_length;
-	unsigned long mmap_addr;
+    unsigned long flags;
+    unsigned long mem_lower;
+    unsigned long mem_upper;
+    unsigned long boot_device;
+    unsigned long cmdline;
+    unsigned long mods_count;
+    unsigned long mods_addr;
+    union
+    {
+        aout_symbol_table_t aout_sym;
+        elf_section_header_table_t elf_sec;
+    } u;
+    unsigned long mmap_length;
+    unsigned long mmap_addr;
 } multiboot_info_t;
 
 /* the module structure.  */
 typedef struct module
 {
-	unsigned long mod_start;
-	unsigned long mod_end;
-	unsigned long string;
-	unsigned long reserved;
+    unsigned long mod_start;
+    unsigned long mod_end;
+    unsigned long string;
+    unsigned long reserved;
 } module_t;
 
 /* the memory map. be careful that the offset 0 is base_addr_low
    but no size.  */
 typedef struct memory_map
 {
-	unsigned long size;
-	unsigned long base_addr_low;
-	unsigned long base_addr_high;
-	unsigned long length_low;
-	unsigned long length_high;
-	unsigned long type;
+    unsigned long size;
+    unsigned long base_addr_low;
+    unsigned long base_addr_high;
+    unsigned long length_low;
+    unsigned long length_high;
+    unsigned long type;
 } memory_map_t;
 
 #endif
diff --git a/bsp/x86/drivers/include/i386.h b/bsp/x86/drivers/include/i386.h
index 68c854932b..bde4a95c3b 100644
--- a/bsp/x86/drivers/include/i386.h
+++ b/bsp/x86/drivers/include/i386.h
@@ -1,3 +1,10 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ */
 #ifndef __I386_H_
 #define __I386_H_
 
@@ -7,138 +14,135 @@ extern "C" {
 
 static __inline unsigned char inb(int port)
 {
-	unsigned char data;
-	__asm __volatile("inb %w1,%0" : "=a" (data) : "d" (port));
-	return data;
+    unsigned char data;
+    __asm __volatile("inb %w1,%0" : "=a" (data) : "d" (port));
+    return data;
 }
 static __inline unsigned char inb_p(unsigned short port)
 {
-	unsigned char _v;
-	__asm__ __volatile__ ("inb %1, %0\n\t"
-						  // "outb %0,$0x80\n\t"                                                                                                                                                      
-						  // "outb %0,$0x80\n\t"                                                                                                                                                      
-						  // "outb %0,$0x80\n\t"                                                                                                                                                      
-						  "outb %0,$0x80"
-						  :"=a" (_v)
-						  :"d" ((unsigned short) port));
-	return _v;
+    unsigned char _v;
+    __asm__ __volatile__ ("inb %1, %0\n\t"
+                          "outb %0,$0x80"
+                          :"=a" (_v)
+                          :"d" ((unsigned short) port));
+    return _v;
 }
 
 static __inline unsigned short inw(int port)
 {
-	unsigned short data;
-	__asm __volatile("inw %w1,%0" : "=a" (data) : "d" (port));
-	return data;
+    unsigned short data;
+    __asm __volatile("inw %w1,%0" : "=a" (data) : "d" (port));
+    return data;
 }
 
 static __inline unsigned int inl(int port)
 {
-	unsigned int data;
-	__asm __volatile("inl %w1,%0" : "=a" (data) : "d" (port));
-	return data;
+    unsigned int data;
+    __asm __volatile("inl %w1,%0" : "=a" (data) : "d" (port));
+    return data;
 }
 
 static __inline void insl(int port, void *addr, int cnt)
 {
-	__asm __volatile("cld\n\trepne\n\tinsl"			:
-			 "=D" (addr), "=c" (cnt)		:
-			 "d" (port), "0" (addr), "1" (cnt)	:
-			 "memory", "cc");
+    __asm __volatile("cld\n\trepne\n\tinsl"			:
+             "=D" (addr), "=c" (cnt)		:
+             "d" (port), "0" (addr), "1" (cnt)	:
+             "memory", "cc");
 }
 
 static __inline void outb(int port, unsigned char data)
 {
-	__asm __volatile("outb %0,%w1" : : "a" (data), "d" (port));
+    __asm __volatile("outb %0,%w1" : : "a" (data), "d" (port));
 }
 
 
 static __inline void outb_p(char value, unsigned short port)
 {
-	__asm__ __volatile__ ("outb %0,%1\n\t"
-						  "outb %0,$0x80"
-						  ::"a" ((char) value),"d" ((unsigned short) port));
+    __asm__ __volatile__ ("outb %0,%1\n\t"
+                          "outb %0,$0x80"
+                          ::"a" ((char) value),"d" ((unsigned short) port));
 }
 
 static __inline void outw(int port, unsigned short data)
 {
-	__asm __volatile("outw %0,%w1" : : "a" (data), "d" (port));
+    __asm __volatile("outw %0,%w1" : : "a" (data), "d" (port));
 }
 
 static __inline unsigned char readcmos(int reg)
 {
-	outb(0x70,reg);
-	return (unsigned char) inb(0x71);
+    outb(0x70,reg);
+    return (unsigned char) inb(0x71);
 }
 
-#define io_delay()  \
-	__asm__ __volatile__ ("pushal \n\t"\
-            "mov $0x3F6, %dx \n\t" \
-            "inb %dx, %al \n\t"    \
-            "inb %dx, %al \n\t"    \
-            "inb %dx, %al \n\t"    \
-            "inb %dx, %al \n\t"    \
-						  "popal")
+#define io_delay()                      \
+    __asm__ __volatile__ ("pushal \n\t" \
+            "mov $0x3F6, %dx \n\t"      \
+            "inb %dx, %al \n\t"         \
+            "inb %dx, %al \n\t"         \
+            "inb %dx, %al \n\t"         \
+            "inb %dx, %al \n\t"         \
+                          "popal")
 
 /* Gate descriptors are slightly different*/
 struct Gatedesc {
-	unsigned gd_off_15_0 : 16;   // low 16 bits of offset in segment
-	unsigned gd_ss : 16;         // segment selector
-	unsigned gd_args : 5;        // # args, 0 for interrupt/trap gates
-	unsigned gd_rsv1 : 3;        // reserved(should be zero I guess)
-	unsigned gd_type :4;         // type(STS_{TG,IG32,TG32})
-	unsigned gd_s : 1;           // must be 0 (system)
-	unsigned gd_dpl : 2;         // descriptor(meaning new) privilege level
-	unsigned gd_p : 1;           // Present
-	unsigned gd_off_31_16 : 16;  // high bits of offset in segment
+    unsigned gd_off_15_0 : 16;   // low 16 bits of offset in segment
+    unsigned gd_ss : 16;         // segment selector
+    unsigned gd_args : 5;        // # args, 0 for interrupt/trap gates
+    unsigned gd_rsv1 : 3;        // reserved(should be zero I guess)
+    unsigned gd_type :4;         // type(STS_{TG,IG32,TG32})
+    unsigned gd_s : 1;           // must be 0 (system)
+    unsigned gd_dpl : 2;         // descriptor(meaning new) privilege level
+    unsigned gd_p : 1;           // Present
+    unsigned gd_off_31_16 : 16;  // high bits of offset in segment
 };
 
 /* Pseudo-descriptors used for LGDT, LLDT and LIDT instructions*/
 struct Pseudodesc {
-	rt_uint16_t pd__garbage;         // LGDT supposed to be from address 4N+2
-	rt_uint16_t pd_lim;              // Limit
-	rt_uint32_t pd_base __attribute__ ((packed));       // Base address
+    rt_uint16_t pd__garbage;         // LGDT supposed to be from address 4N+2
+    rt_uint16_t pd_lim;              // Limit
+    rt_uint32_t pd_base __attribute__ ((packed));       // Base address
 };
 
-#define SETGATE(gate, istrap, sel, off, dpl)			\
-{								\
-	(gate).gd_off_15_0 = (rt_uint32_t) (off) & 0xffff;		\
-	(gate).gd_ss = (sel);					\
-	(gate).gd_args = 0;					\
-	(gate).gd_rsv1 = 0;					\
-	(gate).gd_type = (istrap) ? STS_TG32 : STS_IG32;	\
-	(gate).gd_s = 0;					\
-	(gate).gd_dpl = dpl;					\
-	(gate).gd_p = 1;					\
-	(gate).gd_off_31_16 = (rt_uint32_t) (off) >> 16;		\
-}
+#define SETGATE(gate, istrap, sel, off, dpl)             \
+    {                                                    \
+        (gate).gd_off_15_0 = (rt_uint32_t)(off)&0xffff;  \
+        (gate).gd_ss = (sel);                            \
+        (gate).gd_args = 0;                              \
+        (gate).gd_rsv1 = 0;                              \
+        (gate).gd_type = (istrap) ? STS_TG32 : STS_IG32; \
+        (gate).gd_s = 0;                                 \
+        (gate).gd_dpl = dpl;                             \
+        (gate).gd_p = 1;                                 \
+        (gate).gd_off_31_16 = (rt_uint32_t)(off) >> 16;  \
+    }
 
 /* Global descriptor numbers*/
-#define		GD_KT     			0x08	// kernel text
-#define		GD_KD     			0x10	// kernel data
-#define 	GD_UT     			0x18	// user text
-#define 	GD_UD     			0x20	// user data
+#define GD_KT 0x08 // kernel text
+#define GD_KD 0x10 // kernel data
+#define GD_UT 0x18 // user text
+#define GD_UD 0x20 // user data
 
 /* Application segment type bits*/
-#define 	STA_X 				0x8		// Executable segment
-#define 	STA_E 				0x4		// Expand down(non-executable segments)
-#define 	STA_C 				0x4		// Conforming code segment(executable only)
-#define 	STA_W 				0x2		// Writeable(non-executable segments)
-#define 	STA_R 				0x2		// Readable(executable segments)
-#define 	STA_A 				0x1		// Accessed
+#define STA_X 0x8 // Executable segment
+#define STA_E 0x4 // Expand down(non-executable segments)
+#define STA_C 0x4 // Conforming code segment(executable only)
+#define STA_W 0x2 // Writeable(non-executable segments)
+#define STA_R 0x2 // Readable(executable segments)
+#define STA_A 0x1 // Accessed
 
 /* System segment type bits*/
-#define 	STS_T16A 			0x1		// Available 16-bit TSS
-#define 	STS_LDT 			0x2		// Local Descriptor Table
-#define 	STS_T16B 			0x3		// Busy 16-bit TSS
-#define 	STS_CG16 			0x4		// 16-bit Call Gate
-#define 	STS_TG 				0x5		// Task Gate / Coum Transmitions
-#define 	STS_IG16 			0x6		// 16-bit Interrupt Gate
-#define 	STS_TG16 			0x7		// 16-bit Trap Gate
-#define 	STS_T32A 			0x9		// Available 32-bit TSS
-#define 	STS_T32B 			0xb		// Busy 32-bit TSS
-#define 	STS_CG32 			0xc		// 32-bit Call Gate
-#define 	STS_IG32 			0xe		// 32-bit Interrupt Gate
-#define 	STS_TG32 			0xf		// 32-bit Trap Gate
+#define STS_T16A 0x1 // Available 16-bit TSS
+#define STS_LDT  0x2 // Local Descriptor Table
+#define STS_T16B 0x3 // Busy 16-bit TSS
+#define STS_CG16 0x4 // 16-bit Call Gate
+#define STS_TG   0x5 // Task Gate / Coum Transmitions
+#define STS_IG16 0x6 // 16-bit Interrupt Gate
+#define STS_TG16 0x7 // 16-bit Trap Gate
+#define STS_T32A 0x9 // Available 32-bit TSS
+#define STS_T32B 0xb // Busy 32-bit TSS
+#define STS_CG32 0xc // 32-bit Call Gate
+#define STS_IG32 0xe // 32-bit Interrupt Gate
+#define STS_TG32 0xf // 32-bit Trap Gate
 
 #ifdef __cplusplus
  }
diff --git a/bsp/x86/drivers/keyboard.c b/bsp/x86/drivers/keyboard.c
index 3716c367cc..b4ae626261 100644
--- a/bsp/x86/drivers/keyboard.c
+++ b/bsp/x86/drivers/keyboard.c
@@ -1,11 +1,7 @@
 /*
- * File      : keyboard.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006, RT-Thread Development Team
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://openlab.rt-thread.com/license/LICENSE
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/bsp/x86/drivers/keyboard.h b/bsp/x86/drivers/keyboard.h
index f3e849df96..437d9dfc9f 100644
--- a/bsp/x86/drivers/keyboard.h
+++ b/bsp/x86/drivers/keyboard.h
@@ -1,3 +1,10 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ */
 
 /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
                               keyboard.h
diff --git a/bsp/x86/drivers/keymap.h b/bsp/x86/drivers/keymap.h
index 3031438a1b..aa9880e295 100644
--- a/bsp/x86/drivers/keymap.h
+++ b/bsp/x86/drivers/keymap.h
@@ -1,3 +1,10 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ */
 
 /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
                               keymap.h
diff --git a/bsp/x86/drivers/serial.c b/bsp/x86/drivers/serial.c
index 51b7a0d96d..64830135fc 100644
--- a/bsp/x86/drivers/serial.c
+++ b/bsp/x86/drivers/serial.c
@@ -1,18 +1,14 @@
 /*
- * File      : serial.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006, RT-Thread Development Team
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://openlab.rt-thread.com/license/LICENSE
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
  * 2006-09-15     QiuYi        the first version
  * 2006-10-10     Bernard      use keyboard instead of serial
  */
- 
+
 #include <rtthread.h>
 #include <rthw.h>
 
@@ -28,13 +24,13 @@
  */
 void rt_serial_init(void)
 {
-	outb(COM1+3,0x80);	/* set DLAB of line control reg */
-	outb(COM1,0x0c);	/* LS of divisor (48 -> 2400 bps */
-	outb(COM1+1,0x00);	/* MS of divisor */
-	outb(COM1+3,0x03);	/* reset DLAB */
-	outb(COM1+4,0x0b);	/* set DTR,RTS, OUT_2 */
-	outb(COM1+1,0x0d);	/* enable all intrs but writes */
-	inb(COM1);			/* read data port to reset things (?) */
+    outb(COM1+3,0x80);	/* set DLAB of line control reg */
+    outb(COM1,0x0c);	/* LS of divisor (48 -> 2400 bps */
+    outb(COM1+1,0x00);	/* MS of divisor */
+    outb(COM1+3,0x03);	/* reset DLAB */
+    outb(COM1+4,0x0b);	/* set DTR,RTS, OUT_2 */
+    outb(COM1+1,0x0d);	/* enable all intrs but writes */
+    inb(COM1);			/* read data port to reset things (?) */
 }
 
 /**
@@ -44,11 +40,9 @@ void rt_serial_init(void)
  */
 char rt_serial_getc(void)
 {
+    while(!(inb(COM1+COMSTATUS) & COMDATA));
 
-	while(!(inb(COM1+COMSTATUS) & COMDATA));
-	
-	return inb(COM1+COMREAD);
-
+    return inb(COM1+COMREAD);
 }
 
 /**
@@ -58,15 +52,15 @@ char rt_serial_getc(void)
  */
 void rt_serial_putc(const char c)
 {
-	int val;
-	
-	while(1)
-	{
-   		if ((val = inb(COM1+COMSTATUS)) & THRE) 
-			break;
-	}
-	
-	outb(COM1+COMWRITE, c&0xff);
+    int val;
+    
+    while(1)
+    {
+           if ((val = inb(COM1+COMSTATUS)) & THRE) 
+            break;
+    }
+    
+    outb(COM1+COMWRITE, c&0xff);
 }
 
 /*@}*/
diff --git a/bsp/x86/rtconfig.h b/bsp/x86/rtconfig.h
index c4cdac1fdc..b2a9f6db50 100644
--- a/bsp/x86/rtconfig.h
+++ b/bsp/x86/rtconfig.h
@@ -1,180 +1,186 @@
-/* RT-Thread config file */
-#ifndef __RTTHREAD_CFG_H__
-#define __RTTHREAD_CFG_H__
+#ifndef RT_CONFIG_H__
+#define RT_CONFIG_H__
 
-/* RT_NAME_MAX*/
-#define RT_NAME_MAX	    8
+/* Automatically generated file; DO NOT EDIT. */
+/* RT-Thread Configuration */
 
-/* RT_ALIGN_SIZE*/
-#define RT_ALIGN_SIZE	8
-
-/* PRIORITY_MAX */
-#define RT_THREAD_PRIORITY_MAX	32
-
-/* Tick per Second */
-#define RT_TICK_PER_SECOND	    1000
-
-/* SECTION: RT_DEBUG */
-/* Thread Debug */
-#define RT_DEBUG
-#define RT_DEBUG_COLOR
-#define RT_DEBUG_MODULE 0
+/* RT-Thread Kernel */
 
+#define RT_NAME_MAX 8
+#define RT_ALIGN_SIZE 4
+#define RT_THREAD_PRIORITY_32
+#define RT_THREAD_PRIORITY_MAX 32
+#define RT_TICK_PER_SECOND 100
 #define RT_USING_OVERFLOW_CHECK
-
-/* Using Hook */
 #define RT_USING_HOOK
+#define RT_USING_IDLE_HOOK
+#define RT_IDLE_HOOK_LIST_SIZE 4
+#define IDLE_THREAD_STACK_SIZE 2048
+#define RT_USING_TIMER_SOFT
+#define RT_TIMER_THREAD_PRIO 4
+#define RT_TIMER_THREAD_STACK_SIZE 2048
+#define RT_DEBUG
+#define RT_DEBUG_COLOR
+#define RT_DEBUG_INIT_CONFIG
+#define RT_DEBUG_INIT 1
 
-/* Using Software Timer */
-/* #define RT_USING_TIMER_SOFT */
-#define RT_TIMER_THREAD_PRIO		4
-#define RT_TIMER_THREAD_STACK_SIZE	512
-#define RT_TIMER_TICK_PER_SECOND	10
+/* Inter-Thread communication */
 
-/* SECTION: IPC */
-/* Using Semaphore*/
 #define RT_USING_SEMAPHORE
-
-/* Using Mutex */
 #define RT_USING_MUTEX
-
-/* Using Event */
 #define RT_USING_EVENT
-
-/* Using MailBox */
 #define RT_USING_MAILBOX
-
-/* Using Message Queue */
 #define RT_USING_MESSAGEQUEUE
 
-/* SECTION: Memory Management */
-/* Using Memory Pool Management*/
-#define RT_USING_MEMPOOL
+/* Memory Management */
 
-/* Using Dynamic Heap Management */
+#define RT_USING_MEMPOOL
+#define RT_USING_SMALL_MEM
+#define RT_USING_MEMTRACE
 #define RT_USING_HEAP
 
-/* Using Small MM */
-#define RT_USING_SMALL_MEM
+/* Kernel Device Object */
 
-/* SECTION: Device System */
-/* Using Device System */
 #define RT_USING_DEVICE
-
-/* SECTION: Console options */
 #define RT_USING_CONSOLE
-/* the buffer size of console*/
-#define RT_CONSOLEBUF_SIZE	128
+#define RT_CONSOLEBUF_SIZE 256
+#define RT_CONSOLE_DEVICE_NAME "console"
+#define RT_VER_NUM 0x40003
+#define ARCH_IA32
 
-#define IDLE_THREAD_STACK_SIZE        1024  /* idle stack 1K */
+/* RT-Thread Components */
+
+#define RT_USING_COMPONENTS_INIT
+#define RT_USING_USER_MAIN
+#define RT_MAIN_THREAD_STACK_SIZE 2048
+#define RT_MAIN_THREAD_PRIORITY 10
+
+/* C++ features */
+
+
+/* Command shell */
 
-/* SECTION: finsh, a C-Express shell */
 #define RT_USING_FINSH
-#define FINSH_USING_MSH
-#define FINSH_USING_MSH_ONLY
-/* Using symbol table */
+#define FINSH_THREAD_NAME "tshell"
+#define FINSH_USING_HISTORY
+#define FINSH_HISTORY_LINES 5
 #define FINSH_USING_SYMTAB
 #define FINSH_USING_DESCRIPTION
+#define FINSH_THREAD_PRIORITY 20
+#define FINSH_THREAD_STACK_SIZE 4096
+#define FINSH_CMD_SIZE 80
+#define FINSH_USING_MSH
+#define FINSH_USING_MSH_DEFAULT
+#define FINSH_USING_MSH_ONLY
+#define FINSH_ARG_MAX 10
 
-// #define RT_USING_LIBC
-// #define RT_USING_PTHREADS
-
-/* SECTION: device filesystem */
- #define RT_USING_DFS
+/* Device virtual file system */
 
+#define RT_USING_DFS
+#define DFS_USING_WORKDIR
+#define DFS_FILESYSTEMS_MAX 2
+#define DFS_FILESYSTEM_TYPES_MAX 2
+#define DFS_FD_MAX 16
 #define RT_USING_DFS_ELMFAT
+
+/* elm-chan's FatFs, Generic FAT Filesystem Module */
+
+#define RT_DFS_ELM_CODE_PAGE 437
 #define RT_DFS_ELM_WORD_ACCESS
-/* Reentrancy (thread safe) of the FatFs module.  */
+#define RT_DFS_ELM_USE_LFN_3
+#define RT_DFS_ELM_USE_LFN 3
+#define RT_DFS_ELM_LFN_UNICODE_0
+#define RT_DFS_ELM_LFN_UNICODE 0
+#define RT_DFS_ELM_MAX_LFN 255
+#define RT_DFS_ELM_DRIVES 2
+#define RT_DFS_ELM_MAX_SECTOR_SIZE 512
 #define RT_DFS_ELM_REENTRANT
-/* Number of volumes (logical drives) to be used. */
-#define RT_DFS_ELM_DRIVES			2
-/* #define RT_DFS_ELM_USE_LFN			1 */
-#define RT_DFS_ELM_MAX_LFN			255
-/* Maximum sector size to be handled. */
-#define RT_DFS_ELM_MAX_SECTOR_SIZE  512
+#define RT_USING_DFS_DEVFS
 
-/* the max number of mounted filesystem */
-#define DFS_FILESYSTEMS_MAX			2
-/* the max number of opened files 		*/
-#define DFS_FD_MAX					4
+/* Device Drivers */
+
+#define RT_USING_DEVICE_IPC
+#define RT_PIPE_BUFSZ 512
+#define RT_USING_SYSTEM_WORKQUEUE
+#define RT_SYSTEM_WORKQUEUE_STACKSIZE 2048
+#define RT_SYSTEM_WORKQUEUE_PRIORITY 23
+#define RT_USING_SERIAL
+#define RT_SERIAL_USING_DMA
+#define RT_SERIAL_RB_BUFSZ 64
+#define RT_USING_PIN
+
+/* Using USB */
+
+
+/* POSIX layer and C standard library */
+
+#define RT_USING_LIBC
+
+/* Network */
+
+/* Socket abstraction layer */
+
+
+/* Network interface device */
+
+
+/* light weight TCP/IP stack */
+
+
+/* AT commands */
+
+
+/* VBUS(Virtual Software BUS) */
+
+
+/* Utilities */
+
+
+/* RT-Thread online packages */
+
+/* IoT - internet of things */
+
+
+/* Wi-Fi */
+
+/* Marvell WiFi */
+
+
+/* Wiced WiFi */
+
+
+/* IoT Cloud */
+
+
+/* security packages */
+
+
+/* language packages */
+
+
+/* multimedia packages */
+
+
+/* tools packages */
 
-#define RT_USING_DFS_DEVFS
 
-/* SECTION: lwip, a lighwight TCP/IP protocol stack */
-//#define RT_USING_LWIP
-/* Enable ICMP protocol*/
-#define RT_LWIP_ICMP
-/* Enable UDP protocol*/
-#define RT_LWIP_UDP
-/* Enable TCP protocol*/
-#define RT_LWIP_TCP
-/* Enable DNS */
-#define RT_LWIP_DNS
+/* system packages */
 
-/* the number of simulatenously active TCP connections*/
-#define RT_LWIP_TCP_PCB_NUM	5
 
-/* Using DHCP */
-/* #define RT_LWIP_DHCP */
+/* Micrium: Micrium software products porting for RT-Thread */
 
-/* ip address of target*/
-#define RT_LWIP_IPADDR0	192
-#define RT_LWIP_IPADDR1	168
-#define RT_LWIP_IPADDR2	1
-#define RT_LWIP_IPADDR3	30
 
-/* gateway address of target*/
-#define RT_LWIP_GWADDR0	192
-#define RT_LWIP_GWADDR1	168
-#define RT_LWIP_GWADDR2	1
-#define RT_LWIP_GWADDR3	1
+/* peripheral libraries and drivers */
 
-/* mask address of target*/
-#define RT_LWIP_MSKADDR0	255
-#define RT_LWIP_MSKADDR1	255
-#define RT_LWIP_MSKADDR2	255
-#define RT_LWIP_MSKADDR3	0
 
-/* tcp thread options */
-#define RT_LWIP_TCPTHREAD_PRIORITY		12
-#define RT_LWIP_TCPTHREAD_MBOX_SIZE		10
-#define RT_LWIP_TCPTHREAD_STACKSIZE		1024
+/* miscellaneous packages */
 
-/* ethernet if thread options */
-#define RT_LWIP_ETHTHREAD_PRIORITY		15
-#define RT_LWIP_ETHTHREAD_MBOX_SIZE		10
-#define RT_LWIP_ETHTHREAD_STACKSIZE		512
 
-/* TCP sender buffer space */
-#define RT_LWIP_TCP_SND_BUF	8192
-/* TCP receive window. */
-#define RT_LWIP_TCP_WND		8192
+/* samples: kernel and components samples */
 
-/* SECTION: RT-Thread/GUI */
-/* #define RT_USING_RTGUI */
 
-/* name length of RTGUI object */
-#define RTGUI_NAME_MAX		12
-/* support 16 weight font */
-#define RTGUI_USING_FONT16
-/* support Chinese font */
-#define RTGUI_USING_FONTHZ
-/* use DFS as file interface */
-#define RTGUI_USING_DFS_FILERW
-/* use font file as Chinese font */
-#define RTGUI_USING_HZ_FILE
-/* use Chinese bitmap font */
-#define RTGUI_USING_HZ_BMP
-/* use small size in RTGUI */
-#define RTGUI_USING_SMALL_SIZE
-/* use mouse cursor */
-/* #define RTGUI_USING_MOUSE_CURSOR */
-/* default font size in RTGUI */
-#define RTGUI_DEFAULT_FONT_SIZE	16
+/* games: games run on RT-Thread console */
 
-/* image support */
-/* #define RTGUI_IMAGE_XPM */
-/* #define RTGUI_IMAGE_BMP */
+#define IA32
 
-// #define RT_USING_MODULE
 #endif
diff --git a/bsp/x86/rtconfig.py b/bsp/x86/rtconfig.py
index b833f4de49..a03f44c39c 100644
--- a/bsp/x86/rtconfig.py
+++ b/bsp/x86/rtconfig.py
@@ -6,14 +6,14 @@ CPU=''
 CROSS_TOOL='gcc'
 
 if os.getenv('RTT_CC'):
-	CROSS_TOOL = os.getenv('RTT_CC')
+    CROSS_TOOL = os.getenv('RTT_CC')
 
 # cross_tool provides the cross compiler
 # EXEC_PATH is the compiler execute path, for example, CodeSourcery,
 
 if  CROSS_TOOL == 'gcc':
-	PLATFORM 	= 'gcc'
-	EXEC_PATH 	= 'E:/Program Files/CodeSourcery/Sourcery_CodeBench_Lite_for_IA32_ELF/bin'
+    PLATFORM    = 'gcc'
+    EXEC_PATH   = 'E:/Program Files/CodeSourcery/Sourcery_CodeBench_Lite_for_IA32_ELF/bin'
 elif CROSS_TOOL == 'keil':
     print('================ERROR============================')
     print('Not support keil yet!')
@@ -26,26 +26,26 @@ elif CROSS_TOOL == 'iar':
     exit(0)
 
 if os.getenv('RTT_EXEC_PATH'):
-	EXEC_PATH = os.getenv('RTT_EXEC_PATH')
+    EXEC_PATH = os.getenv('RTT_EXEC_PATH')
 
 BUILD = 'debug'
 
 if PLATFORM == 'gcc':
     # toolchains
-    PREFIX = ''
-    CC = PREFIX + 'gcc -m32 -fno-builtin -fno-stack-protector -nostdinc'
-    AS = PREFIX + 'gcc -m32'
+    PREFIX = 'i686-elf-'
+    CC = PREFIX + 'gcc'
+    AS = PREFIX + 'gcc'
     AR = PREFIX + 'ar'
-    LINK = PREFIX + 'ld -melf_i386'
+    LINK = PREFIX + 'gcc'
     TARGET_EXT = 'elf'
     SIZE = PREFIX + 'size'
     OBJDUMP = PREFIX + 'objdump'
     OBJCPY = PREFIX + 'objcopy'
 
-    DEVICE = ''
+    DEVICE = ' -mtune=generic'
     CFLAGS = DEVICE + ' -Wall'
     AFLAGS = ' -c' + DEVICE + ' -x assembler-with-cpp'
-    LFLAGS = DEVICE + ' -Map rtthread-ia32.map -T x86_ram.lds -nostdlib'
+    LFLAGS = DEVICE + ' -Wl,--gc-sections,-Map=rtthread.map,-cref,-u,_start -T x86_ram.lds -nostartfiles'
 
     CPATH = ''
     LPATH = ''
diff --git a/bsp/x86/x86_ram.lds b/bsp/x86/x86_ram.lds
index afac69f04b..089d9973c4 100644
--- a/bsp/x86/x86_ram.lds
+++ b/bsp/x86/x86_ram.lds
@@ -1,55 +1,62 @@
 OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
 OUTPUT_ARCH(i386)
 ENTRY(_start)
+
 SECTIONS
 {
-	. = 0x00100000;
-	
-	. = ALIGN(4);
-	.text :
-	{
-		*(.init)
-		*(.text)
+    . = 0x00100000;
+
+    . = ALIGN(4);
+    .text :
+    {
+        *(.init)
+        *(.text)
+
+        /* section information for finsh shell */
+        . = ALIGN(4);
+        __fsymtab_start = .;
+        KEEP(*(FSymTab))
+        __fsymtab_end = .;
+        . = ALIGN(4);
+        __vsymtab_start = .;
+        KEEP(*(VSymTab))
+        __vsymtab_end = .;
+        . = ALIGN(4);	
+        __rtmsymtab_start = .;
+        KEEP(*(RTMSymTab));
+        __rtmsymtab_end = .;
+
+        /* section information for initialization */
+        . = ALIGN(4);
+        __rt_init_start = .;
+        KEEP(*(SORT(.rti_fn*)))
+        __rt_init_end = .;
+      }
+    
+    . = ALIGN(4);
+    .rodata : { *(.rodata*) }
 
-		/* section information for finsh shell */
-		. = ALIGN(4);
-		__fsymtab_start = .;
-		KEEP(*(FSymTab))
-		__fsymtab_end = .;
-		. = ALIGN(4);
-		__vsymtab_start = .;
-		KEEP(*(VSymTab))
-		__vsymtab_end = .;
-		. = ALIGN(4);	
-		__rtmsymtab_start = .;
-		KEEP(*(RTMSymTab));
-		__rtmsymtab_end = .;
-	  }
-	
-	. = ALIGN(4);
-	.rodata : { *(.rodata*) }
+    . = ALIGN(4);
+    .data : { *(.data) }
 
-	. = ALIGN(4);
-	.data : { *(.data) }
+    . = ALIGN(4);
+    __bss_start = .;
+    .bss : { *(.bss) }
+    __bss_end   = .;
 
-	. = ALIGN(4);
-	__bss_start = .;
-	.bss : { *(.bss) }
-	__bss_end   = .;
-	
-	/* stabs debugging sections. */
-	.stab 0 : { *(.stab) }
-	.stabstr 0 : { *(.stabstr) }
-	.stab.excl 0 : { *(.stab.excl) }
-	.stab.exclstr 0 : { *(.stab.exclstr) }
-	.stab.index 0 : { *(.stab.index) }
-	.stab.indexstr 0 : { *(.stab.indexstr) }
-	.comment 0 : { *(.comment) }
-	.debug_abbrev 0 : { *(.debug_abbrev) }
-	.debug_info 0 : { *(.debug_info) }
-	.debug_line 0 : { *(.debug_line) }
-	.debug_pubnames 0 : { *(.debug_pubnames) }
-	.debug_aranges 0 : { *(.debug_aranges) }
-	
-	_end = .;
+    /* stabs debugging sections. */
+    .stab 0 : { *(.stab) }
+    .stabstr 0 : { *(.stabstr) }
+    .stab.excl 0 : { *(.stab.excl) }
+    .stab.exclstr 0 : { *(.stab.exclstr) }
+    .stab.index 0 : { *(.stab.index) }
+    .stab.indexstr 0 : { *(.stab.indexstr) }
+    .comment 0 : { *(.comment) }
+    .debug_abbrev 0 : { *(.debug_abbrev) }
+    .debug_info 0 : { *(.debug_info) }
+    .debug_line 0 : { *(.debug_line) }
+    .debug_pubnames 0 : { *(.debug_pubnames) }
+    .debug_aranges 0 : { *(.debug_aranges) }
+    
+    _end = .;
 }
diff --git a/libcpu/ia32/__udivsi3.c b/libcpu/ia32/__udivsi3.c
index ec7c59d1cb..5a5622f883 100644
--- a/libcpu/ia32/__udivsi3.c
+++ b/libcpu/ia32/__udivsi3.c
@@ -1,11 +1,7 @@
 /*
- * File      : __udivsi3.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006, RT-Thread Develop Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://openlab.rt-thread.com/license/LICENSE
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/libcpu/ia32/__umodsi3.c b/libcpu/ia32/__umodsi3.c
index 226a2c0800..d47fe3d295 100644
--- a/libcpu/ia32/__umodsi3.c
+++ b/libcpu/ia32/__umodsi3.c
@@ -1,11 +1,7 @@
 /*
- * File      : __umodsi3.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006, RT-Thread Develop Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://openlab.rt-thread.com/license/LICENSE
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/libcpu/ia32/backtrace.c b/libcpu/ia32/backtrace.c
deleted file mode 100644
index b8f094d90f..0000000000
--- a/libcpu/ia32/backtrace.c
+++ /dev/null
@@ -1,20 +0,0 @@
-/*
- * File      : backtrace.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006, 2008 RT-Thread Development Team
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://openlab.rt-thread.com/license/LICENSE
- *
- * Change Logs:
- * Date           Author       Notes
- * 2008-07-29     Bernard      first version
- */
-
-#include <rtthread.h>
-
-void rt_hw_backtrace(rt_uint32_t *fp, rt_uint32_t thread_entry)
-{
-	/* no implementation */
-}
diff --git a/libcpu/ia32/context_gcc.S b/libcpu/ia32/context_gcc.S
index a8ad867b91..32233303c7 100644
--- a/libcpu/ia32/context_gcc.S
+++ b/libcpu/ia32/context_gcc.S
@@ -1,11 +1,7 @@
 /*
- * File      : context_gcc.S
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rt-thread.org/license/LICENSE
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
@@ -83,31 +79,3 @@ rt_hw_context_switch_to:
 	pop %ds
 	add $4, %esp			/* skip irqno */
 	iret
-
-/*
- * void rt_hw_context_switch_interrupt(rt_uint32 from, rt_uint32 to);
- */
-.globl rt_thread_switch_interrupt_flag
-.globl rt_interrupt_from_thread
-.globl rt_interrupt_to_thread
-.globl rt_hw_context_switch_interrupt
-rt_hw_context_switch_interrupt:
-	pushl %ebp
-	movl %esp, %ebp
-	movl 0xc(%ebp), %eax
-	movl 0x8(%ebp), %ebx
-	
-	movl $rt_thread_switch_interrupt_flag, %ecx
-	movl (%ecx), %edx
-	cmp $0x1, %edx
-	jz _reswitch
-	
-	movl $0x1, %edx				/*set rt_thread_switch_interrupt_flag to 1*/
-	movl %edx, (%ecx)
-	movl $rt_interrupt_from_thread, %edx	/*set rt_interrupt_from_thread*/
-	movl %ebx, (%edx)
-_reswitch:
-	movl $rt_interrupt_to_thread, %edx		/*set rt_interrupt_to_thread*/
-	movl %eax, (%edx)
-	leave
-	ret
diff --git a/libcpu/ia32/stack.c b/libcpu/ia32/cpuport.c
index 9d656a73d6..69032c2f87 100644
--- a/libcpu/ia32/stack.c
+++ b/libcpu/ia32/cpuport.c
@@ -1,24 +1,43 @@
 /*
- * File      : stack.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://openlab.rt-thread.com/license/LICENSE
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
+ * 2021/02/19     Bernard      Implement rt_hw_context_switch_interrupt in C
  */
  
+#include <rthw.h>
 #include <rtthread.h>
 
-#include <i386.h>
+volatile rt_ubase_t  rt_interrupt_from_thread = 0;
+volatile rt_ubase_t  rt_interrupt_to_thread = 0;
+volatile rt_uint32_t rt_thread_switch_interrupt_flag = 0;
 
-/**
- * @addtogroup I386
- */
-/*@{*/
+rt_base_t rt_hw_interrupt_disable(void)
+{
+    rt_base_t level;
+
+    __asm__ __volatile__("pushfl ; popl %0 ; cli":"=g" (level): :"memory");
+    return level;
+}
+
+void rt_hw_interrupt_enable(rt_base_t level)
+{
+    __asm__ __volatile__("pushl %0 ; popfl": :"g" (level):"memory", "cc");
+}
+
+void rt_hw_context_switch_interrupt(rt_ubase_t from, rt_ubase_t to)
+{
+    if (rt_thread_switch_interrupt_flag == 0)
+        rt_interrupt_from_thread = from;
+
+    rt_interrupt_to_thread = to;
+    rt_thread_switch_interrupt_flag = 1;
+
+    return ;
+}
 
 /**
  * This function will initialize thread stack
@@ -56,4 +75,3 @@ rt_uint8_t *rt_hw_stack_init(void *tentry, void *parameter,
 	/* return task's current stack address */
 	return (rt_uint8_t *)stk;
 }
-/*@}*/
diff --git a/libcpu/ia32/hdisr_gcc.S b/libcpu/ia32/hdisr_gcc.S
index 6f79fe4c2a..24c4c17990 100644
--- a/libcpu/ia32/hdisr_gcc.S
+++ b/libcpu/ia32/hdisr_gcc.S
@@ -1,11 +1,7 @@
 /*
- * File      : hdisr_gcc.S
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rt-thread.org/license/LICENSE
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/libcpu/ia32/interrupt.c b/libcpu/ia32/interrupt.c
index e620cbe76c..d597848c52 100644
--- a/libcpu/ia32/interrupt.c
+++ b/libcpu/ia32/interrupt.c
@@ -1,38 +1,20 @@
 /*
- * File      : interrupt.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2015, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
  * 2015/9/15      Bernard      Update to new interrupt framework.
  */
  
-#include <rtthread.h>
 #include <rthw.h>
+#include <rtthread.h>
 
 #include <bsp.h>
 
-extern rt_uint32_t rt_interrupt_nest;
 extern void rt_hw_idt_init(void);
 
-rt_uint32_t rt_interrupt_from_thread, rt_interrupt_to_thread;
-rt_uint32_t rt_thread_switch_interrupt_flag;
-
 /* exception and interrupt handler table */
 struct rt_irq_desc irq_desc[MAX_HANDLERS];
 
@@ -50,45 +32,39 @@ void rt_hw_interrupt_handle(int vector, void* param);
  */
 void rt_hw_pic_init()
 {
-	outb(IO_PIC1, 0x11);
-	outb(IO_PIC1+1, IRQ_OFFSET);
-	outb(IO_PIC1+1, 1<<IRQ_SLAVE);
-	outb(IO_PIC1+1, 0x3);
-	outb(IO_PIC1+1, 0xff);
-	outb(IO_PIC1, 0x68);
-	outb(IO_PIC1, 0x0a);
-	outb(IO_PIC2, 0x11);
-	outb(IO_PIC2+1, IRQ_OFFSET + 8);
-	outb(IO_PIC2+1, IRQ_SLAVE);
-	outb(IO_PIC2+1, 0x3);
-	outb(IO_PIC2+1, 0xff);
-	outb(IO_PIC2, 0x68);
-	outb(IO_PIC2, 0x0a);
+    outb(IO_PIC1, 0x11);
+    outb(IO_PIC1+1, IRQ_OFFSET);
+    outb(IO_PIC1+1, 1<<IRQ_SLAVE);
+    outb(IO_PIC1+1, 0x3);
+    outb(IO_PIC1+1, 0xff);
+    outb(IO_PIC1, 0x68);
+    outb(IO_PIC1, 0x0a);
+    outb(IO_PIC2, 0x11);
+    outb(IO_PIC2+1, IRQ_OFFSET + 8);
+    outb(IO_PIC2+1, IRQ_SLAVE);
+    outb(IO_PIC2+1, 0x3);
+    outb(IO_PIC2+1, 0xff);
+    outb(IO_PIC2, 0x68);
+    outb(IO_PIC2, 0x0a);
 
-	if (irq_mask_8259A != 0xFFFF)
-	{
-		outb(IO_PIC1+1, (char)irq_mask_8259A);
-		outb(IO_PIC2+1, (char)(irq_mask_8259A >> 8));
-	}
-
-	/* init interrupt nest, and context */
-	rt_interrupt_nest = 0;
-	rt_interrupt_from_thread = 0;
-	rt_interrupt_to_thread = 0;
-	rt_thread_switch_interrupt_flag = 0;
+    if (irq_mask_8259A != 0xFFFF)
+    {
+        outb(IO_PIC1+1, (char)irq_mask_8259A);
+        outb(IO_PIC2+1, (char)(irq_mask_8259A >> 8));
+    }
 }
 
 void rt_hw_interrupt_handle(int vector, void* param)
 {
-	rt_kprintf("Unhandled interrupt %d occured!!!\n", vector);
+    rt_kprintf("Unhandled interrupt %d occured!!!\n", vector);
 }
 
 void rt_hw_isr(int vector)
 {
-	if (vector < MAX_HANDLERS)
-	{
-		irq_desc[vector].handler(vector, irq_desc[vector].param);
-	}
+    if (vector < MAX_HANDLERS)
+    {
+        irq_desc[vector].handler(vector, irq_desc[vector].param);
+    }
 }
 
 /**
@@ -97,10 +73,10 @@ void rt_hw_isr(int vector)
  */
 void rt_hw_interrupt_init(void)
 {
-	int idx;
-	
-	rt_hw_idt_init();
-	rt_hw_pic_init();
+    int idx;
+    
+    rt_hw_idt_init();
+    rt_hw_pic_init();
 
     /* init exceptions table */
     for(idx=0; idx < MAX_HANDLERS; idx++)
@@ -116,16 +92,16 @@ void rt_hw_interrupt_init(void)
 
 void rt_hw_interrupt_umask(int vector)
 {
-	irq_mask_8259A = irq_mask_8259A&~(1<<vector);
-	outb(IO_PIC1+1, (char)irq_mask_8259A);
-	outb(IO_PIC2+1, (char)(irq_mask_8259A >> 8));
+    irq_mask_8259A = irq_mask_8259A&~(1<<vector);
+    outb(IO_PIC1+1, (char)irq_mask_8259A);
+    outb(IO_PIC2+1, (char)(irq_mask_8259A >> 8));
 }
 
 void rt_hw_interrupt_mask(int vector)
 {
-	irq_mask_8259A = irq_mask_8259A | (1<<vector);
-	outb(IO_PIC1+1, (char)irq_mask_8259A);
-	outb(IO_PIC2+1, (char)(irq_mask_8259A >> 8));
+    irq_mask_8259A = irq_mask_8259A | (1<<vector);
+    outb(IO_PIC1+1, (char)irq_mask_8259A);
+    outb(IO_PIC2+1, (char)(irq_mask_8259A >> 8));
 }
 
 rt_isr_handler_t rt_hw_interrupt_install(int              vector,
@@ -152,17 +128,4 @@ rt_isr_handler_t rt_hw_interrupt_install(int              vector,
     return old_handler;
 }
 
-rt_base_t rt_hw_interrupt_disable(void)
-{
-	rt_base_t level;
-
-	__asm__ __volatile__("pushfl ; popl %0 ; cli":"=g" (level): :"memory");
-	return level;
-}
-
-void rt_hw_interrupt_enable(rt_base_t level)
-{
-	__asm__ __volatile__("pushl %0 ; popfl": :"g" (level):"memory", "cc");
-}
-
 /*@}*/
diff --git a/libcpu/ia32/showmem.c b/libcpu/ia32/showmem.c
deleted file mode 100644
index 38f037f83d..0000000000
--- a/libcpu/ia32/showmem.c
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * File      : showmem.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006, 2008 RT-Thread Development Team
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://openlab.rt-thread.com/license/LICENSE
- *
- * Change Logs:
- * Date           Author       Notes
- * 2008-07-29     Bernard      first version from QiuYi implementation
- */
-
-#include <rtthread.h>
-
-void rt_hw_show_memory(rt_uint32_t addr, rt_uint32_t size)
-{
-	int i = 0, j =0;
-
-	RT_ASSERT(addr);
-
-	addr = addr & ~0xF;
-	size = 4*((size + 3)/4);
-
-	while(i < size)
-	{
-		rt_kprintf("0x%08x: ", addr );
-
-		for(j=0; j<4; j++)
-		{
-			rt_kprintf("0x%08x  ", *(rt_uint32_t *)addr);
-
-			addr += 4;
-			i++;
-		}
-
-		rt_kprintf("\n");
-	}
-
-	return;
-}
diff --git a/libcpu/ia32/start_gcc.S b/libcpu/ia32/start_gcc.S
index 84adc83fe2..ee7d2787fd 100644
--- a/libcpu/ia32/start_gcc.S
+++ b/libcpu/ia32/start_gcc.S
@@ -1,11 +1,7 @@
 /*
- * File      : start.S
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2012, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rt-thread.org/license/LICENSE
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
@@ -52,8 +48,8 @@ multiboot_entry:
 	pushl	$0
 	popf
 
-	/*rebuild globe describe table*/
-	lgdt	mygdtdesc
+	/* rebuild globe describe table */
+	lgdt	__gdtdesc
 
 	movl	$0x10,%eax
 	movw	%ax,%ds
@@ -77,7 +73,7 @@ spin:
 
 .data
 .p2align	2
-mygdt:
+__gdt:
 	.word	0,0,0,0
 
 	.word	0x07FF		/* 8Mb - limit=2047 */
@@ -90,8 +86,8 @@ mygdt:
 	.word	0x9200		/* data read/write */
 	.word	0x00C0
 
-mygdtdesc:
+__gdtdesc:
 	.word	0x17
-	.long	mygdt
+	.long	__gdt
 
 /*@}*/
diff --git a/libcpu/ia32/trap.c b/libcpu/ia32/trap.c
index 5e9a51d6d2..172a078273 100644
--- a/libcpu/ia32/trap.c
+++ b/libcpu/ia32/trap.c
@@ -1,18 +1,14 @@
 /*
- * File      : trap.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://openlab.rt-thread.com/license/LICENSE
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
  */
-
-#include <rtthread.h>
+ 
 #include <rthw.h>
+#include <rtthread.h>
 
 #include <bsp.h>
 
@@ -29,6 +25,7 @@ struct Pseudodesc idt_pd =
 extern rt_isr_handler_t isr_table[];
 extern rt_isr_handler_t trap_func[];
 extern rt_isr_handler_t hdinterrupt_func[];
+extern void rt_hw_interrupt_handle(int vector, void* param);
 
 /**
  * @addtogroup I386
@@ -41,7 +38,7 @@ extern rt_isr_handler_t hdinterrupt_func[];
  */
 void rt_hw_idt_init(void)
 {	
-	extern void Xdefault;
+	extern void Xdefault(void);
 	int i, j, func;
 
 	// install a default handler
@@ -92,7 +89,7 @@ void rt_hw_trap_irq(int trapno)
 			rt_kprintf("General protection interrupt\n");
 			RT_ASSERT(0);
 		case T_DEFAULT:
-			rt_hw_interrupt_handle(T_DEFAULT);
+			rt_hw_interrupt_handle(T_DEFAULT, RT_NULL);
 			return;
 	}
 
diff --git a/libcpu/ia32/trapisr_gcc.S b/libcpu/ia32/trapisr_gcc.S
index be7e97a5fb..82887ecda3 100644
--- a/libcpu/ia32/trapisr_gcc.S
+++ b/libcpu/ia32/trapisr_gcc.S
@@ -1,11 +1,7 @@
 /*
- * File      : trapisr_gcc.S
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rt-thread.org/license/LICENSE
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
@@ -22,6 +18,7 @@
 	.globl proc;\
 	.type proc,@function;\
 	proc:
+
 #define TRAPFNC(name,num)\
 	ENTRY(name)\
 	pushl $(num);\
@@ -29,6 +26,7 @@
 	.data;\
 	.long name;\
 	.text
+
 #define TRAPFNC_NOEC(name,num)\
 	ENTRY(name)\
 	pushl $0;\
@@ -54,17 +52,17 @@ TRAPFNC_NOEC(Xoflow,  4)
 TRAPFNC_NOEC(Xbound,  5)
 TRAPFNC_NOEC(Xillop,  6)
 TRAPFNC_NOEC(Xdevice, 7)
-TRAPFNC     	(Xdblflt, 8)
-TRAPFNC    	(Xtss,    9)
-TRAPFNC     	(Xsegnp,  10)
-TRAPFNC     	(Xstack,  11)
-TRAPFNC     	(Xgpflt,  12)
-TRAPFNC     	(Xpgflt,  13)
+TRAPFNC (Xdblflt, 8)
+TRAPFNC (Xtss,    9)
+TRAPFNC (Xsegnp,  10)
+TRAPFNC (Xstack,  11)
+TRAPFNC (Xgpflt,  12)
+TRAPFNC (Xpgflt,  13)
 TRAPFNC_NOEC(Xfperr,  14)
-TRAPFNC     	(Xalign,  15)
+TRAPFNC (Xalign,  15)
 
 /* default handler -- not for any specific trap */
-TRAPFNC     (Xdefault, 500)
+TRAPFNC (Xdefault, 500)
 
 .p2align 4,0x90
 .globl	_traps