feat: add support for gn build system

add BUILD.gn for all kernel modules
Signed-off-by: NCaoruihong <crh.cao@huawei.com>
Change-Id: I018446427bf64615f2596d47862b219659b58b34

BUILD.gn

@@ -28,47 +28,308 @@
 # ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 import("//build/lite/config/component/lite_component.gni")
-import("//build/lite/config/subsystem/lite_subsystem.gni")
+
+declare_args() {
+  tee_enable = false
+}
+
+LITEOS_MENUCONFIG_H = rebase_path("$root_out_dir/config.h")
+
+tee = ""
+if (tee_enable) {
+  tee = "_tee"
+}
+
+productName = get_path_info(product_path, "file")
+config_file = "${productName}_release.config"
+if (ohos_build_compiler == "clang") {
+  if (ohos_build_type == "debug") {
+    config_file = "debug/${productName}_${ohos_build_compiler}${tee}.config"
+  } else {
+    config_file = "${productName}_${ohos_build_compiler}_release${tee}.config"
+  }
+} else if (ohos_build_compiler == "gcc") {
+  if (ohos_build_type == "debug") {
+    config_file = "${productName}_debug_shell${tee}.config"
+  } else {
+    config_file = "${productName}_release${tee}.config"
+  }
+}
+
+liteos_config_file = rebase_path("tools/build/config/$config_file")
+
+# we prefer use product specified config file
+f = "$product_path/config/${ohos_build_type}${tee}.config"
+if (exec_script("//build/lite/run_shell_cmd.py", [ "if [ -f $f ]; then echo true; else echo false; fi" ], "value")) {
+  liteos_config_file = f
+}
+
+print("liteos_config_file:", liteos_config_file)
+
+exec_script("//build/lite/run_shell_cmd.py", [ "which genconfig || pip install --user kconfiglib" ])
+
+exec_script("//build/lite/run_shell_cmd.py",
+            [
+              "env" +
+              " CONFIG_=LOSCFG_" +
+              " KCONFIG_CONFIG_HEADER='y=true'" +
+              " KCONFIG_CONFIG=$liteos_config_file" +
+              " DEVICE_PATH=$device_path" +
+              " srctree=" + rebase_path(".") +
+              " genconfig" +
+              " --header-path $LITEOS_MENUCONFIG_H" +
+              " --file-list kconfig_files.txt" +
+              " --env-list kconfig_env.txt" +
+              " --config-out config.gni",
+            ])
+
+import("liteos.gni")
 
 generate_notice_file("kernel_notice_file") {
   module_name = "kernel"
   module_source_dir_list = [
-    "//third_party/FreeBSD",
-    "//third_party/musl",
-    "//third_party/zlib",
-    "//third_party/FatFs",
-    "//third_party/Linux_Kernel",
-    "//third_party/lwip",
-    "//third_party/NuttX",
-    "//third_party/mtd-utils",
+    "$LITEOSTHIRDPARTY/FreeBSD",
+    "$LITEOSTHIRDPARTY/musl",
+    "$LITEOSTHIRDPARTY/zlib",
+    "$LITEOSTHIRDPARTY/FatFs",
+    "$LITEOSTHIRDPARTY/Linux_Kernel",
+    "$LITEOSTHIRDPARTY/lwip",
+    "$LITEOSTHIRDPARTY/NuttX",
+    "$LITEOSTHIRDPARTY/mtd-utils",
   ]
 }
 
-declare_args() {
-  enable_ohos_kernel_liteos_a_ext_build = true
-  LOSCFG_TEST_APPS = false
-  tee_enable = ""
-}
-
-lite_subsystem("kernel") {
-  subsystem_components = []
-
-  if (enable_ohos_kernel_liteos_a_ext_build == false) {
-    subsystem_components += [
-      "//kernel/liteos_a/kernel",
-      "//kernel/liteos_a/net",
-      "//kernel/liteos_a/lib",
-      "//kernel/liteos_a/compat",
-      "//kernel/liteos_a/fs",
-      "//kernel/liteos_a/arch:platform_cpu",
+liteos_arch_cflags = []
+if (defined(LOSCFG_ARCH_ARM)) {
+  mcpu = LOSCFG_ARCH_CPU
+  if (defined(LOSCFG_ARCH_ARM_AARCH64) && defined(LOSCFG_ARCH_FPU_DISABLE)) {
+    mcpu += "+nofp"
+  }
+  liteos_arch_cflags += [ "-mcpu=$mcpu" ]
+  if (defined(LOSCFG_ARCH_ARM_AARCH32)) {
+    liteos_arch_cflags += [
+      "-mfloat-abi=softfp",
+      "-mfpu=$LOSCFG_ARCH_FPU",
+    ]
+  }
+}
+
+cc = "$ohos_current_cc_command " + string_join(" ", liteos_arch_cflags)
+if (ohos_build_compiler == "clang") {
+  cc += " --target=$target_triple"
+}
+
+config("arch_config") {
+  cflags = liteos_arch_cflags
+  asmflags = cflags
+  ldflags = cflags
+}
+
+config("as_objs_libc_flags") {
+  defines = [ "__ASSEMBLY__" ]
+
+  # linux style macros
+  if (defined(LOSCFG_ARCH_ARM_V7A) || defined(LOSCFG_ARCH_ARM_V7R) ||
+  defined(LOSCFG_ARCH_ARM_V7M)) {
+    defines += [ "__LINUX_ARM_ARCH__=7" ]
+  } else if (defined(LOSCFG_ARCH_ARM_V8A) || defined(LOSCFG_ARCH_ARM_V8R) ||
+  defined(LOSCFG_ARCH_ARM_V8M)) {
+    defines += [ "__LINUX_ARM_ARCH__=8" ]
+  }
+}
+
+config("std_include") {
+  std_include = exec_script("//build/lite/run_shell_cmd.py", [ "$cc -print-file-name=include" ], "trim string")
+  include_dirs = [ std_include ]
+}
+
+config("public") {
+  configs = [
+    "arch:public",
+    "platform:public",
+    "kernel:public",
+    "compat:public",
+    "bsd:public",
+    "fs:public",
+    "drivers:public",
+    "security:public",
+    "net:public",
+    "shell:public",
+    "lib:public",
+    ":std_include",
+  ]
+}
+
+config("los_config") {
+  cflags = [
+    "-imacros",
+    "$LITEOS_MENUCONFIG_H",
+  ]
+
+  defines = [ "__LITEOS__" ]
+
+  configs = [ ":arch_config" ]
+
+  ldflags = [ "-nostdlib" ]
+
+  cflags_c = [ "-std=c99" ]
+
+  cflags += [
+    "-fno-pic",
+    "-fno-builtin",
+    "-nostdinc",
+    "-Wall",
+    "-Werror",
+    "-fms-extensions",
+    "-Wno-address-of-packed-member",
+    "-fno-strict-aliasing",
+    "-fno-common",
+    "-fsigned-char",
+    "-Wpointer-arith",
+    "-Wstrict-prototypes",
+    "-Winvalid-pch",
+    "-ffunction-sections",
+    "-fdata-sections",
+    "-fno-exceptions",
+    "-fno-omit-frame-pointer",
+    "-fno-short-enums",
+  ]
+
+  if (defined(LOSCFG_QUICK_START)) {
+    cflags -= [ "-Werror" ]
+  }
+
+  if (defined(LOSCFG_COMPILE_DEBUG)) {
+    cflags += [
+      "-O0",
+      "-g",
+      "-gdwarf-2",
     ]
-    if (LOSCFG_SHELL) {
-      subsystem_components += [ "//kernel/liteos_a/shell" ]
+  } else {
+    if (defined(LOSCFG_COMPILER_CLANG_LLVM)) {
+      cflags += [
+        "-Oz",
+        "-flto",
+      ]
+    } else {
+      cflags += [ "-O2" ]
     }
+  }
+
+  if (defined(LOSCFG_CC_STACKPROTECTOR_ALL)) {
+    cflags += [ "-fstack-protector-all" ]
+  } else if (defined(LOSCFG_CC_STACKPROTECTOR_STRONG)) {
+    cflags += [ "-fstack-protector-strong" ]
+  } else if (defined(LOSCFG_CC_STACKPROTECTOR)) {
+    cflags += [
+      "-fstack-protector",
+      "--param",
+      "ssp-buffer-size=4",
+    ]
   } else {
-    deps = [ ":make" ]
-    deps += [ "//kernel/liteos_a/testsuites/unittest:unittest" ]
+    cflags += [ "-fno-stack-protector" ]
+  }
+
+  if (!defined(LOSCFG_COMPILER_CLANG_LLVM)) {
+    cflags += [ "-fno-aggressive-loop-optimizations" ]
+    if (!defined(LOSCFG_ARCH_ARM_AARCH64)) {
+      cflags += [
+        "-mno-unaligned-access",
+        "-mthumb-interwork",
+      ]
+    }
+  }
+
+  if (defined(LOSCFG_THUMB)) {
+    cflags += [
+      "-mthumb",
+      "-Wa,-mimplicit-it=thumb",
+    ]
   }
+
+  asmflags = cflags
+}
+
+liteos_name = "liteos2"
+liteos_out = rebase_path("$target_out_dir/$liteos_name")
+executable(liteos_name) {
+  configs = [] # clear default configs
+  configs += [ ":los_config" ]
+
+  ldflags = [
+    "-static",
+    "-Wl,--gc-sections",
+    "-Wl,-Map=" + rebase_path("$liteos_out.map"),
+    "-Wl,--no-eh-frame-hdr",
+    "-Wl,--whole-archive",
+  ]
+
+  libgcc = exec_script("//build/lite/run_shell_cmd.py", [ "$cc -print-libgcc-file-name" ], "trim string")
+  libs = [ libgcc ]
+  if (defined(LOSCFG_COMPILER_CLANG_LLVM)) {
+    libs += [ "tools/build/liteos_llvm.ld" ]
+  } else {
+    libs += [ "tools/build/liteos.ld" ]
+    ldflags += [ "-nostartfiles" ]
+  }
+
+  deps = [
+    ":modules",
+  ]
+}
+
+build_ext_component("build_liteos_bin") {
+  deps = [ ":$liteos_name" ]
+  exec_path = rebase_path(target_out_dir)
+
+  objcopy = "${compile_prefix}objcopy$toolchain_cmd_suffix"
+  objdump = "${compile_prefix}objdump$toolchain_cmd_suffix"
+
+  liteos = rebase_path("$root_out_dir/unstripped/bin/$liteos_name")
+
+  command = "$objcopy -O binary $liteos $liteos_out.bin"
+  command += " && sh -c '$objdump -t $liteos | sort >$liteos_out.sym.sorted'"
+  command += " && sh -c '$objdump -d $liteos >$liteos_out.asm'"
+}
+
+group("modules") {
+  deps = [
+    "arch",
+    "bsd",
+    "compat",
+    "drivers",
+    "fs",
+    "kernel",
+    "lib",
+    "net",
+    "platform",
+    "security",
+    "shell",
+    "syscall",
+  ]
+}
+
+group("apps") {
+  deps = [ "apps" ]
+}
+
+group("tests") {
+  deps = [ "testsuites" ]
+}
+
+group("kernel") {
+  deps = [
+    ":make",
+    ":tests",
+  ]
+}
+
+group("liteos_a") {
+  deps = [
+    ":apps",
+    ":kernel",
+    ":tests",
+  ]
 }
 
 build_ext_component("make") {

Kconfig

@@ -58,7 +58,7 @@ source "platform/Kconfig"
 source "arch/Kconfig"
 
 ######################### config options of rootfs #####################
-source "kernel/common/Kconfig"
+source "kernel/common/rootfs/Kconfig"
 ######################### config options of patchfs #####################
 source "kernel/common/patchfs/Kconfig"
 ######################### config options of blackbox #####################
@@ -93,6 +93,7 @@ source "fs/romfs/Kconfig"
 source "fs/nfs/Kconfig"
 source "fs/proc/Kconfig"
 source "fs/jffs2/Kconfig"
+source "fs/zpfs/Kconfig"
 config ENABLE_READ_BUFFER
     bool "Enable read buffer Option"
     default n
@@ -163,9 +164,16 @@ config ENABLE_MAGICKEY
 config THUMB
     bool "Enable Thumb"
     default n
+    select INTERWORK_THUMB
     help
       Answer Y to build thumb version.  This will make LiteOS smaller.
 
+config INTERWORK_THUMB
+    bool "Enable interwork Thumb" if THUMB
+    default n
+    help
+      Answer Y to enable interwork thumb.
+
 config PLATFORM_DVFS
     bool "Enable Dvfs"
     default n
@@ -295,8 +303,7 @@ source "bsd/dev/usb/Kconfig"
 source "../../drivers/adapter/khdf/liteos/Kconfig"
 
 # Device driver Kconfig import
-osource "$(DEVICE_PATH)/Kconfig"
-osource "$(DEVICE_PATH)/config/Kconfig"
+osource "$(DEVICE_PATH)/drivers/Kconfig"
 
 source "drivers/char/mem/Kconfig"
 source "drivers/char/quickstart/Kconfig"

Makefile

@@ -51,13 +51,25 @@ LITEOS_PLATFORM_BASE = $(LITEOSTOPDIR)/platform
 
 export CONFIG_=LOSCFG_
 ifeq ($(PRODUCT_PATH),)
-export PRODUCT_PATH=$(LITEOSTOPDIR)/../../device/hisilicon/drivers
+export PRODUCT_PATH=$(shell hb env|grep "product path:"|sed 's/.*: //g')
+endif
+ifeq ($(DEVICE_PATH),)
+export DEVICE_PATH=$(shell hb env|grep "device path:"|sed 's/.*: //g')
+endif
+
+ifeq ($(TEE:1=y),y)
+tee = _tee
+endif
+ifeq ($(RELEASE:1=y),y)
+CONFIG ?= $(PRODUCT_PATH)/config/release$(tee).config
+else
+CONFIG ?= $(PRODUCT_PATH)/config/debug$(tee).config
 endif
 
 ifeq ($(shell which menuconfig),)
 $(shell pip install --user kconfiglib >/dev/null)
 endif
-$(shell env CONFIG_=$(CONFIG_) PRODUCT_PATH=$(PRODUCT_PATH) olddefconfig >/dev/null)
+$(shell env CONFIG_=$(CONFIG_) DEVICE_PATH=$(DEVICE_PATH) olddefconfig >/dev/null)
 
 -include $(LITEOSTOPDIR)/tools/build/config.mk
 
@@ -217,7 +229,7 @@ update_all_config:
 		done
 
 update_config:
-	$(HIDE)test -f "$(CONFIG)" && cp "$(CONFIG)" .config && menuconfig && savedefconfig --out "$(CONFIG)"
+	$(HIDE)test -f "$(CONFIG)" && cp -v "$(CONFIG)" .config && menuconfig && savedefconfig --out "$(CONFIG)"
 
 .PHONY: all lib clean cleanall $(LITEOS_TARGET) debug release help update_all_config update_config
 .PHONY: prepare sysroot cleanrootfs $(ROOTFS) $(ROOTFSDIR) $(APPS) menuconfig $(LITEOS_LIBS_TARGET) $(__LIBS) $(OUT)

apps/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+group("apps") {
+  deps = []
+
+  if (defined(LOSCFG_SHELL)) {
+    deps += [
+      "shell",
+      #"mksh",
+      #"toybox",
+    ]
+  }
+
+  if (defined(LOSCFG_USER_INIT_DEBUG)) {
+    #deps += [ "init" ]
+  }
+
+  if (defined(LOSCFG_NET_LWIP_SACK_TFTP)) {
+    deps += [ "tftp" ]
+  }
+}

apps/init/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+executable("init") {
+  sources = [ "src/init.c" ]
+
+  cflags = [ "-fPIE" ]
+
+  if (defined(LOSCFG_COMPILER_CLANG_LLVM)) {
+    cflags += [
+      "-Wno-shift-op-parentheses",
+      "-Wno-bitwise-op-parentheses",
+      "-Wnonnull",
+    ]
+  }
+
+  ldflags = [
+    "-pie",
+    "-s",
+  ]
+
+  if (defined(LOSCFG_QUICK_START)) {
+    ldflags += [ "--static" ]
+  }
+}

apps/mksh/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//build/lite/config/component/lite_component.gni")
+import("//kernel/liteos_a/liteos.gni")
+
+group("mksh") {
+  deps = [ ":build_mksh" ]
+}
+
+build_ext_component("build_mksh") {
+  exec_path = rebase_path(target_out_dir)
+  command = "make -C $LITEOSTHIRDPARTY/mksh"
+}

apps/shell/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+executable("shell") {
+  sources = [
+    "builtin/cd.c",
+    "src/main.c",
+    "src/shcmd.c",
+    "src/shcmdparse.c",
+    "src/shmsg.c",
+  ]
+
+  deps = [ "$LITEOSTHIRDPARTY/bounds_checking_function:libsec_static" ]
+
+  include_dirs = [ "include" ]
+
+  cflags = [ "-fPIE" ]
+
+  if (defined(LOSCFG_COMPILER_CLANG_LLVM)) {
+    cflags += [
+      "-Wno-shift-op-parentheses",
+      "-Wno-bitwise-op-parentheses",
+    ]
+  }
+
+  ldflags = [
+    "-pie",
+    "-s",
+  ]
+}

apps/tftp/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+executable("tftp") {
+  sources = [
+    "src/main.c",
+    "src/tftpc.c",
+  ]
+
+  deps = [ "$LITEOSTHIRDPARTY/bounds_checking_function:libsec_static" ]
+
+  include_dirs = [ "include" ]
+
+  cflags = [ "-fPIE" ]
+
+  if (defined(LOSCFG_COMPILER_CLANG_LLVM)) {
+    cflags += [
+      "-Wno-shift-op-parentheses",
+      "-Wno-bitwise-op-parentheses",
+    ]
+  }
+
+  ldflags = [
+    "-pie",
+    "-s",
+  ]
+}

apps/toybox/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//build/lite/config/component/lite_component.gni")
+import("//kernel/liteos_a/liteos.gni")
+
+group("toybox") {
+  deps = [ ":build_toybox" ]
+}
+
+build_ext_component("build_toybox") {
+  exec_path = rebase_path(target_out_dir)
+  command = "make -C $LITEOSTHIRDPARTY/toybox"
+}

arch/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+group("arch") {
+  deps = []
+  if (defined(LOSCFG_ARCH_ARM)) {
+    deps += [ "arm" ]
+  }
+}
+
+config("public") {
+  configs = []
+  if (defined(LOSCFG_ARCH_ARM)) {
+    configs += [ "arm:public" ]
+  }
+}

arch/arm/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+group("arm") {
+  deps = [ "gic" ]
+  if (defined(LOSCFG_ARCH_ARM_AARCH32)) {
+    deps += [ "arm" ]
+  }
+}
+
+config("public") {
+  include_dirs = [ "include" ]
+  configs = []
+  if (defined(LOSCFG_ARCH_ARM_AARCH32)) {
+    configs += [ "arm:public" ]
+  } else if (defined(LOSCFG_ARCH_ARM_AARCH64)) {
+    configs += [ "aarch64:public" ]
+  }
+}

arch/arm/arm/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_name = LOSCFG_ARCH_CPU
+kernel_module(module_name) {
+  sources = [
+    "src/arm_generic_timer.c",
+    "src/clear_user.S",
+    "src/hw_user_get.S",
+    "src/hw_user_put.S",
+    "src/jmp.S",
+    "src/los_arch_mmu.c",
+    "src/los_asid.c",
+    "src/los_dispatch.S",
+    "src/los_exc.c",
+    "src/los_hw.c",
+    "src/los_hw_exc.S",
+    "src/los_hw_runstop.S",
+    "src/los_hw_tick.c",
+    "src/los_hwi.c",
+    "src/strncpy_from_user.c",
+    "src/strnlen_user.c",
+    "src/user_copy.c",
+  ]
+
+  if (LOSCFG_ARCH_ARM_VER == "armv7-a") {
+    sources += [ "src/armv7a/cache.S" ]
+  }
+
+  if (defined(LOSCFG_KERNEL_SMP)) {
+    sources += [ "src/startup/reset_vector_mp.S" ]
+  } else {
+    sources += [ "src/startup/reset_vector_up.S" ]
+  }
+
+  include_dirs = [ "src/include" ]
+
+  if (defined(LOSCFG_GDB)) {
+    configs += [ "$LITEOSTOPDIR:as_objs_libc_flags" ]
+  }
+
+  public_configs = [ ":public" ]
+}
+
+group("arm") {
+  public_deps = [ ":$module_name" ]
+}
+
+config("public") {
+  include_dirs = [
+    "include",
+    "src/include",
+  ]
+}

arch/arm/gic/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = []
+
+  if (defined(LOSCFG_ARCH_GIC_V2)) {
+    sources += [ "gic_v2.c" ]
+  } else if (defined(LOSCFG_ARCH_GIC_V3)) {
+    sources += [ "gic_v3.c" ]
+  }
+}

bsd/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_COMPAT_BSD)
+module_name = "libbsd"
+kernel_module(module_name) {
+  sources = [
+    "kern/bus_if.c",
+    "kern/device_if.c",
+    "kern/kern_condvar.c",
+    "kern/kern_timeout.c",
+    "kern/subr_bus.c",
+    "kern/subr_kobj.c",
+  ]
+
+  if (defined(LOSCFG_ARCH_ARM_AARCH32)) {
+    sources += [
+      "arm/autoconf.c",
+      "arm/hw_user_copy.S",
+      "arm/in_cksum.c",
+      "arm/in_cksum_arm.S",
+      "arm/nexus.c",
+    ]
+  }
+
+  if (defined(LOSCFG_DRIVERS_RANDOM)) {
+    sources += [
+      "crypto/rijndael/rijndael-alg-fst.c",
+      "crypto/rijndael/rijndael-api-fst.c",
+      "crypto/sha2/sha256c.c",
+      "dev/random/hash.c",
+      "dev/random/yarrow.c",
+      "libkern/explicit_bzero.c",
+    ]
+  }
+
+  public_configs = [ ":public" ]
+}
+
+group("bsd") {
+  public_deps = [ ":$module_name" ]
+
+  deps = [
+    "compat/linuxkpi",
+    "dev/usb",
+  ]
+}
+
+config("public") {
+  include_dirs = [
+    ".",
+    "kern",
+  ]
+  configs = [
+    "compat/linuxkpi:public",
+    "dev/usb:public",
+  ]
+}

bsd/Kconfig

 config  COMPAT_BSD
     bool "Enable FreeBSD"
     default y
+    select COMPAT_LINUXKPI
 
     help
       Answer Y to enable LiteOS support FreeBSD.
+
+config  COMPAT_LINUXKPI
+    bool "Enable linuxkpi" if COMPAT_BSD
+    default y
+
+    help
+      Answer Y to enable LiteOS support compatible layer for linuxkpi.

bsd/compat/linuxkpi/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_COMPAT_BSD)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = [
+    "src/adp.c",
+    "src/linux_completion.c",
+    "src/linux_interrupt.c",
+    "src/linux_sched.c",
+    "src/linux_semaphore.c",
+    "src/linux_timer.c",
+    "src/linux_wakelock.c",
+    "src/linux_workqueue.c",
+    "src/prctl.c",
+    "src/tzdst.c",
+  ]
+
+  if (defined(LOSCFG_HRTIMER_ENABLE)) {
+    sources += [ "src/linux_hrtimer.c" ]
+  }
+
+  public_configs = [ ":public" ]
+}
+
+config("public") {
+  include_dirs = [ "include" ]
+}

bsd/dev/usb/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_DRIVERS_USB)
+module_name = "usb_base"
+kernel_module(module_name) {
+  sources = [
+    "implementation/bsd_busspace.c",
+    "implementation/bsd_kernel.c",
+    "implementation/usb_btree.c",
+    "implementation/usb_busdma_loader.c",
+    "implementation/usb_init.c",
+    "implementation/usb_version.c",
+    "usb_debug.c",
+  ]
+
+  if (defined(LOSCFG_DRIVERS_USB)) {
+    sources += [
+      "controller/usb_controller.c",
+      "quirk/usb_quirk.c",
+      "usb_dev.c",
+      "usb_device.c",
+      "usb_dynamic.c",
+      "usb_error.c",
+      "usb_generic.c",
+      "usb_handle_request.c",
+      "usb_hub.c",
+      "usb_if.c",
+      "usb_lookup.c",
+      "usb_mbuf.c",
+      "usb_parse.c",
+      "usb_process.c",
+      "usb_request.c",
+      "usb_transfer.c",
+      "usb_util.c",
+    ]
+  }
+
+  if (defined(LOSCFG_DRIVERS_USB_4G_MODEM)) {
+    sources += [ "net/if_cdce.c" ]
+  }
+
+  if (defined(LOSCFG_DRIVERS_USB_ETHERNET)) {
+    sources += [
+      "net/if_axe.c",
+      "net/if_axge.c",
+    ]
+  }
+
+  if (defined(LOSCFG_DRIVERS_USB_RNDIS_HOST)) {
+    sources += [ "net/if_urndis.c" ]
+  }
+
+  if (defined(LOSCFG_DRIVERS_USB_4G_MODEM) ||
+      defined(LOSCFG_DRIVERS_USB_ETHERNET) ||
+      defined(LOSCFG_DRIVERS_USB_RNDIS_HOST)) {
+    sources += [
+      "net/usb_eth_drv.c",
+      "net/usb_ethernet.c",
+    ]
+  }
+
+  if (defined(LOSCFG_DRIVERS_USB_4G_MODEM) ||
+      defined(LOSCFG_DRIVERS_USB_SERIAL)) {
+    sources += [
+      "serial/u3g.c",
+      "serial/usb_serial.c",
+    ]
+  }
+
+  if (defined(LOSCFG_DRIVERS_USB_HOST_EHCI)) {
+    sources += [
+      "controller/ehci.c",
+      "controller/ehci_pci.c",
+    ]
+  }
+
+  if (defined(LOSCFG_DRIVERS_USB_HOST_XHCI) ||
+      defined(LOSCFG_DRIVERS_USB_HOST_XHCI_FOR_PORT2)) {
+    sources += [
+      "controller/xhci.c",
+      "controller/xhci_pci.c",
+    ]
+  }
+
+  if (defined(LOSCFG_DRIVERS_USB_WIRELESS)) {
+    sources += [ "linux_usb.c" ]
+  }
+
+  if (defined(LOSCFG_DRIVERS_USB_MASS_STORAGE)) {
+    sources += [ "storage/umass.c" ]
+  }
+
+  if (defined(LOSCFG_DRIVERS_USB_HID_CLASS) &&
+      defined(LOSCFG_DRIVERS_HDF_INPUT)) {
+    sources += [
+      "input/uhid.c",
+      "usb_hid.c",
+    ]
+
+    include_dirs = [
+      "//drivers/framework/model/input/driver",
+      "//drivers/framework/include/core",
+      "//drivers/framework/core/common/include/host",
+      "//drivers/framework/utils",
+      "//drivers/framework/osal",
+      "//drivers/framework/ability/sbuf/include",
+      "//drivers/framework/include/osal",
+    ]
+  }
+
+  configs += [
+    "$HDFTOPDIR:hdf_config"
+  ]
+
+  public_configs = [ ":public" ]
+}
+
+group("usb") {
+  public_deps = [ ":$module_name" ]
+}
+
+config("public") {
+  include_dirs = [ "." ]
+  include_dirs += [ "$LITEOSTHIRDPARTY/FreeBSD/sys/dev/evdev" ]
+}

compat/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+group("compat") {
+  deps = [ "posix" ]
+}
+
+config("public") {
+  configs = [ "posix:public" ]
+}

compat/posix/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_COMPAT_POSIX)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = [
+    "src/map_error.c",
+    "src/misc.c",
+    "src/mqueue.c",
+    "src/posix_memalign.c",
+    "src/pthread.c",
+    "src/pthread_attr.c",
+    "src/pthread_cond.c",
+    "src/pthread_mutex.c",
+    "src/sched.c",
+    "src/semaphore.c",
+    "src/socket.c",
+    "src/time.c",
+  ]
+
+  public_configs = [ ":public" ]
+}
+
+config("public") {
+  include_dirs = [ "include" ]
+}

drivers/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+cmd = "if [ -f $device_path/drivers/BUILD.gn ]; then echo true; else echo false; fi"
+HAVE_DEVICE_DRIVERS = exec_script("//build/lite/run_shell_cmd.py", [ cmd ], "value")
+
+module_switch = defined(LOSCFG_DRIVERS)
+group("drivers") {
+  if (module_switch) {
+    deps = [
+      "block/disk",
+      "char/bch",
+      "char/mem",
+      "char/quickstart",
+      "char/random",
+      "char/video",
+      "mtd/multi_partition",
+      "//drivers/adapter/khdf/liteos",
+      "//drivers/liteos",
+    ]
+    if (HAVE_DEVICE_DRIVERS) {
+      deps += [ "$device_path/drivers" ]
+    }
+  }
+}
+
+config("public") {
+  configs = [
+    "block/disk:public",
+    "char/bch:public",
+    "char/mem:public",
+    "char/quickstart:public",
+    "char/random:public",
+    "char/video:public",
+    "mtd/multi_partition:public",
+    "//drivers/adapter/khdf/liteos:public",
+    "//drivers/liteos:public",
+  ]
+  if (HAVE_DEVICE_DRIVERS) {
+    configs += [ "$device_path/drivers:public" ]
+  }
+}

drivers/block/disk/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_FS_FAT_DISK)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = [
+    "src/disk.c",
+    "src/disk_shellcmd.c",
+  ]
+
+  public_configs = [ ":public" ]
+}
+
+config("public") {
+  include_dirs = [ "include" ]
+}

drivers/char/bch/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_FS_VFS_BLOCK_DEVICE)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = [
+    "$LITEOSTHIRDPARTY/NuttX/drivers/bch/bchdev_driver.c",
+    "$LITEOSTHIRDPARTY/NuttX/drivers/bch/bchdev_register.c",
+    "$LITEOSTHIRDPARTY/NuttX/drivers/bch/bchdev_unregister.c",
+    "$LITEOSTHIRDPARTY/NuttX/drivers/bch/bchlib_cache.c",
+    "$LITEOSTHIRDPARTY/NuttX/drivers/bch/bchlib_read.c",
+    "$LITEOSTHIRDPARTY/NuttX/drivers/bch/bchlib_sem.c",
+    "$LITEOSTHIRDPARTY/NuttX/drivers/bch/bchlib_setup.c",
+    "$LITEOSTHIRDPARTY/NuttX/drivers/bch/bchlib_teardown.c",
+    "$LITEOSTHIRDPARTY/NuttX/drivers/bch/bchlib_write.c",
+  ]
+
+  public_configs = [ ":public" ]
+}
+
+config("public") {
+  include_dirs = [ "include" ]
+}

drivers/char/mem/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_DRIVERS_MEM)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = [ "src/mem.c" ]
+
+  public_configs = [ ":public" ]
+}
+
+config("public") {
+  include_dirs = [ "include" ]
+}

drivers/char/quickstart/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_DRIVERS_QUICKSTART)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = [ "src/quickstart.c" ]
+
+  public_configs = [ ":public" ]
+}
+
+config("public") {
+  include_dirs = [ "include" ]
+}

drivers/char/random/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_DRIVERS_RANDOM)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = [ "src/random.c" ]
+
+  if (defined(LOSCFG_HW_RANDOM_ENABLE)) {
+    sources += [ "src/random_hw.c" ]
+  }
+
+  public_configs = [ ":public" ]
+}
+
+config("public") {
+  include_dirs = [ "include" ]
+}

drivers/char/video/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_DRIVERS_VIDEO)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = [ "$LITEOSTHIRDPARTY/NuttX/drivers/video/fb.c" ]
+
+  public_configs = [ ":public" ]
+}
+
+config("public") {
+  include_dirs = [ "$LITEOSTHIRDPARTY/NuttX/include/nuttx/video" ]
+}

drivers/mtd/multi_partition/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_FS_VFS)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = [
+    "src/mtd_partition.c",
+    "src/mtd_shellcmd.c",
+  ]
+
+  include_dirs = [
+    "$LITEOSTOPDIR/fs/jffs2/include",
+    "//device/hisilicon/drivers/include/mtd/common/include",
+  ]
+
+  if (defined(LOSCFG_PLATFORM_QEMU_ARM_VIRT_CA7)) {
+    include_dirs += [ "//device/qemu/drivers/cfiflash" ]
+  }
+
+  public_configs = [ ":public" ]
+}
+
+config("public") {
+  include_dirs = [ "include" ]
+}

fs/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+group("fs") {
+  deps = [
+    "fat",
+    "fat/virpart",
+    "jffs2",
+    "nfs",
+    "proc",
+    "ramfs",
+    "romfs",
+    "vfs",
+    "vfs/bcache",
+    "zpfs",
+  ]
+}
+
+config("public") {
+  include_dirs = [ "include" ]
+  configs = [
+    "vfs:public",
+    "vfs/bcache:public",
+    "fat:public",
+    "fat/virpart:public",
+    "proc:public",
+  ]
+}

fs/fat/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_FS_FAT)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = [
+    "os_adapt/fat_shellcmd.c",
+    "os_adapt/fatfs.c",
+    "os_adapt/format.c",
+  ]
+
+  sources += [
+    "$LITEOSTHIRDPARTY/FatFs/source/diskio.c",
+    "$LITEOSTHIRDPARTY/FatFs/source/ff.c",
+    "$LITEOSTHIRDPARTY/FatFs/source/ffsystem.c",
+    "$LITEOSTHIRDPARTY/FatFs/source/ffunicode.c",
+  ]
+
+  include_dirs = [ "os_adapt" ]
+
+  public_configs = [ ":public" ]
+}
+
+config("public") {
+  include_dirs = [ "$LITEOSTHIRDPARTY/FatFs/source" ]
+}

fs/fat/virpart/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_FS_FAT_VIRTUAL_PARTITION)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = [
+    "src/virpart.c",
+    "src/virpartff.c",
+  ]
+
+  include_dirs = [ "../os_adapt" ]
+
+  public_configs = [ ":public" ]
+}
+
+config("public") {
+  include_dirs = [ "include" ]
+}

fs/jffs2/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_FS_JFFS)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = [
+    "src/jffs2_hash.c",
+    "src/vfs_jffs2.c",
+  ]
+
+  sources += [
+    "$LITEOSTHIRDPARTY/Linux_Kernel/fs/jffs2/background.c",
+    "$LITEOSTHIRDPARTY/Linux_Kernel/fs/jffs2/build.c",
+    "$LITEOSTHIRDPARTY/Linux_Kernel/fs/jffs2/compr.c",
+    "$LITEOSTHIRDPARTY/Linux_Kernel/fs/jffs2/compr_rtime.c",
+    "$LITEOSTHIRDPARTY/Linux_Kernel/fs/jffs2/compr_rubin.c",
+    "$LITEOSTHIRDPARTY/Linux_Kernel/fs/jffs2/compr_zlib.c",
+    "$LITEOSTHIRDPARTY/Linux_Kernel/fs/jffs2/debug.c",
+    "$LITEOSTHIRDPARTY/Linux_Kernel/fs/jffs2/dir.c",
+    "$LITEOSTHIRDPARTY/Linux_Kernel/fs/jffs2/erase.c",
+    "$LITEOSTHIRDPARTY/Linux_Kernel/fs/jffs2/file.c",
+    "$LITEOSTHIRDPARTY/Linux_Kernel/fs/jffs2/fs.c",
+    "$LITEOSTHIRDPARTY/Linux_Kernel/fs/jffs2/gc.c",
+    "$LITEOSTHIRDPARTY/Linux_Kernel/fs/jffs2/malloc.c",
+    "$LITEOSTHIRDPARTY/Linux_Kernel/fs/jffs2/nodelist.c",
+    "$LITEOSTHIRDPARTY/Linux_Kernel/fs/jffs2/nodemgmt.c",
+    "$LITEOSTHIRDPARTY/Linux_Kernel/fs/jffs2/read.c",
+    "$LITEOSTHIRDPARTY/Linux_Kernel/fs/jffs2/readinode.c",
+    "$LITEOSTHIRDPARTY/Linux_Kernel/fs/jffs2/scan.c",
+    "$LITEOSTHIRDPARTY/Linux_Kernel/fs/jffs2/summary.c",
+    "$LITEOSTHIRDPARTY/Linux_Kernel/fs/jffs2/super.c",
+    "$LITEOSTHIRDPARTY/Linux_Kernel/fs/jffs2/write.c",
+    "$LITEOSTHIRDPARTY/Linux_Kernel/fs/jffs2/writev.c",
+  ]
+
+  include_dirs = [
+    "$LITEOSTHIRDPARTY/Linux_Kernel/fs/jffs2",
+    "$LITEOSTHIRDPARTY/Linux_Kernel/fs",
+  ]
+
+  public_configs = [ ":public" ]
+}
+
+config("public") {
+  include_dirs = [ "include" ]
+}

fs/nfs/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_FS_NFS)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = [
+    "$LITEOSTHIRDPARTY/NuttX/fs/nfs/nfs_adapter.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/nfs/nfs_util.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/nfs/rpc_clnt.c",
+  ]
+}

fs/proc/BUILD.gn

@@ -25,23 +25,31 @@
 # OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 # WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 # OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-static_library("fs_proc") {
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_FS_PROC)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
   sources = [
+    "os_adapt/fd_proc.c",
+    "os_adapt/fs_cache_proc.c",
+    "os_adapt/kernel_trace_proc.c",
+    "os_adapt/mounts_proc.c",
+    "os_adapt/power_proc.c",
     "os_adapt/proc_init.c",
-    "os_adapt/vfs_proc.c",
+    "os_adapt/proc_vfs.c",
+    "os_adapt/process_proc.c",
+    "os_adapt/uptime_proc.c",
+    "os_adapt/vmm_proc.c",
+    "src/proc_file.c",
     "src/proc_shellcmd.c",
-    "src/pseudofs.c",
-    "src/seq_file.c",
   ]
 
-  include_dirs = [ "include" ]
+  public_configs = [ ":public" ]
+}
 
-  if (LOSCFG_LLTREPORT) {
-    cflags += [
-      "-fprofile-arcs",
-      "-ftest-coverage",
-    ]
-  }
+config("public") {
+  include_dirs = [ "include" ]
 }

fs/ramfs/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_FS_RAMFS)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = [ "$LITEOSTHIRDPARTY/NuttX/fs/tmpfs/fs_tmpfs.c" ]
+}

fs/romfs/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_FS_ROMFS)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = [
+    "$LITEOSTHIRDPARTY/NuttX/fs/romfs/fs_romfs.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/romfs/fs_romfsutil.c",
+  ]
+}

fs/vfs/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_FS_VFS)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = [
+    "operation/fs_chattr.c",
+    "operation/fs_check.c",
+    "operation/fs_fallocate.c",
+    "operation/fs_fallocate64.c",
+    "operation/fs_file.c",
+    "operation/fs_file_mapping.c",
+    "operation/fs_init.c",
+    "operation/fs_other.c",
+    "operation/fs_preadv.c",
+    "operation/fs_pwritev.c",
+    "operation/fs_readv.c",
+    "operation/fs_utime.c",
+    "operation/fs_writev.c",
+    "operation/fullpath.c",
+    "vfs_cmd/vfs_shellcmd.c",
+  ]
+
+  sources += [
+    "$LITEOSTHIRDPARTY/NuttX/fs/dirent/fs_closedir.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/dirent/fs_opendir.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/dirent/fs_readdir.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/dirent/fs_rewinddir.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/dirent/fs_seekdir.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/dirent/fs_telldir.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/driver/fs_blockproxy.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/driver/fs_closeblockdriver.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/driver/fs_findblockdriver.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/driver/fs_openblockdriver.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/driver/fs_registerblockdriver.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/driver/fs_registerdriver.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/driver/fs_unregisterblockdriver.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/driver/fs_unregisterdriver.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/inode/fs_files.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/mount/fs_foreachmountpoint.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/mount/fs_mount.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/mount/fs_umount.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_close.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_dup.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_dup2.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_dupfd.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_dupfd2.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_fcntl.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_fsync.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_getfilep.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_ioctl.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_link.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_lseek.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_lseek64.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_mkdir.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_open.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_poll.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_pread.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_pread64.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_pwrite.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_pwrite64.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_read.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_readlink.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_rename.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_rmdir.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_select.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_sendfile.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_stat.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_statfs.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_symlink.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_truncate.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_truncate64.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_unlink.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_write.c",
+    "$LITEOSTOPDIR/fs/vfs/mount.c",
+    "$LITEOSTOPDIR/fs/vfs/path_cache.c",
+    "$LITEOSTOPDIR/fs/vfs/vnode.c",
+    "$LITEOSTOPDIR/fs/vfs/vnode_hash.c",
+  ]
+
+  include_dirs = [ "$LITEOSTOPDIR/syscall" ]
+  public_configs = [ ":public" ]
+}
+
+config("public") {
+  include_dirs = [ "include" ]
+}

fs/vfs/bcache/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_FS_FAT_CACHE)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = [ "src/bcache.c" ]
+
+  public_configs = [ ":public" ]
+}
+
+config("public") {
+  include_dirs = [ "../include/bcache" ]
+}

fs/zpfs/BUILD.gn

@@ -27,16 +27,13 @@
 # OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 # ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-static_library("fs_zpfs") {
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_FS_ZPFS)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
   sources = [
     "vfs_zpfs.c",
     "zpfs.c",
   ]
-
-  if (LOSCFG_LLTREPORT) {
-    cflags += [
-      "-fprofile-arcs",
-      "-ftest-coverage",
-    ]
-  }
 }

kernel/BUILD.gn

@@ -25,32 +25,24 @@
 # OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 # WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 # OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-import("//build/lite/config/component/lite_component.gni")
+import("//kernel/liteos_a/liteos.gni")
 
-lite_component("kernel") {
-  features = [
+group("kernel") {
+  deps = [
     "base",
-    "syscall",
+    "common",
+    "extended",
     "user",
   ]
-  if (LOSCFG_KERNEL_CPUP) {
-    features += [ "extended/cpup" ]
-  }
-  if (LOSCFG_KERNEL_MPU) {
-    features += [ "extended/mpu" ]
-  }
-  if (LOSCFG_KERNEL_CPPSUPPORT) {
-    features += [ "extended/cppsupport" ]
-  }
-  if (LOSCFG_KERNEL_DYNLOAD) {
-    features += [ "extended/dynload" ]
-  }
-  if (LOSCFG_KERNEL_TRACE) {
-    features += [ "extended/trace" ]
-  }
-  if (LOSCFG_KERNEL_VDSO) {
-    features += [ "extended/vdso" ]
-  }
+}
+
+config("public") {
+  include_dirs = [ "include" ]
+  configs = [
+    "base:public",
+    "common:public",
+    "extended:public",
+  ]
 }

kernel/base/BUILD.gn

@@ -25,9 +25,12 @@
 # OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 # WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 # OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-static_library("base") {
+import("//kernel/liteos_a/liteos.gni")
+
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
   sources = [
     "core/los_bitmap.c",
     "core/los_process.c",
@@ -36,22 +39,24 @@ static_library("base") {
     "core/los_sys.c",
     "core/los_task.c",
     "core/los_tick.c",
-    "core/los_timeslice.c",
     "ipc/los_event.c",
+    "ipc/los_futex.c",
     "ipc/los_ipcdebug.c",
     "ipc/los_mux.c",
-    "ipc/los_mux_debug.c",
     "ipc/los_queue.c",
     "ipc/los_queue_debug.c",
+    "ipc/los_rwlock.c",
     "ipc/los_sem.c",
     "ipc/los_sem_debug.c",
-    "mem/bestfit/los_memory.c",
-    "mem/bestfit/los_multipledlinkhead.c",
+    "ipc/los_signal.c",
     "mem/common/los_memstat.c",
     "mem/membox/los_membox.c",
+    "mem/tlsf/los_memory.c",
+    "misc/kill_shellcmd.c",
     "misc/los_misc.c",
     "misc/los_stackinfo.c",
     "misc/mempt_shellcmd.c",
+    "misc/panic_shellcmd.c",
     "misc/swtmr_shellcmd.c",
     "misc/sysinfo_shellcmd.c",
     "misc/task_shellcmd.c",
@@ -59,22 +64,33 @@ static_library("base") {
     "mp/los_lockdep.c",
     "mp/los_mp.c",
     "mp/los_percpu.c",
+    "mp/los_spinlock.c",
     "mp/los_stat.c",
     "om/los_err.c",
-    "sched/sched_sq/los_priqueue.c",
     "sched/sched_sq/los_sched.c",
-    "vm/filemap.c",
-    "vm/pmm.c",
-    "vm/vm.c",
-    "vm/vmm.c",
+    "vm/los_vm_boot.c",
+    "vm/los_vm_dump.c",
+    "vm/los_vm_fault.c",
+    "vm/los_vm_filemap.c",
+    "vm/los_vm_iomap.c",
+    "vm/los_vm_map.c",
+    "vm/los_vm_page.c",
+    "vm/los_vm_phys.c",
+    "vm/los_vm_scan.c",
+    "vm/los_vm_syscall.c",
+    "vm/oom.c",
+    "vm/shm.c",
   ]
 
-  include_dirs = [
-    "include",
-    "../extended/include",
-    "../extended/vdso/include",
-    "../extended/dynload/include",
-    "../include",
-    "mem",
-  ]
+  if (defined(LOSCFG_SHELL_CMD_DEBUG)) {
+    configs += [
+      "$HDFTOPDIR:hdf_config"
+    ]
+  }
+
+  public_configs = [ ":public" ]
+}
+
+config("public") {
+  include_dirs = [ "include" ]
 }

kernel/base/misc/panic_shellcmd.c

@@ -35,7 +35,6 @@
 #include "shell.h"
 #endif
 #include "los_swtmr_pri.h"
-#include "watchdog_if.h"
 
 
 #ifdef LOSCFG_SHELL_CMD_DEBUG
@@ -46,6 +45,7 @@ LITE_OS_SEC_TEXT_MINOR BOOL OsSystemExcIsReset(VOID)
     return systemExcReset;
 }
 #ifdef LOSCFG_DRIVERS_HDF_PLATFORM_WATCHDOG
+#include "watchdog_if.h"
 
 #define WATCHDOG_TIMER_INTERVAL 5 // 5 seconds
 #define WATCHDOG_TIMER_INTERVAL_HALF (WATCHDOG_TIMER_INTERVAL / 2)

kernel/common/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+group("common") {
+  deps = [
+    "blackbox",
+    "hidumper",
+    "patchfs",
+    "rootfs",
+  ]
+}
+
+config("public") {
+  configs = [
+    "blackbox:public",
+    "hidumper:public",
+    "patchfs:public",
+    "rootfs:public",
+  ]
+}

kernel/common/blackbox/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_BLACKBOX)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = [
+    "los_blackbox_common.c",
+    "los_blackbox_core.c",
+    "los_blackbox_detector.c",
+    "los_blackbox_system_adapter.c",
+  ]
+  include_dirs = [ "$LITEOSTOPDIR/syscall" ]
+  public_configs = [ ":public" ]
+}
+
+config("public") {
+  include_dirs = [ "." ]
+}

kernel/common/hidumper/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_HIDUMPER)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = [ "los_hidumper.c" ]
+  public_configs = [ ":public" ]
+}
+
+config("public") {
+  include_dirs = [ "." ]
+}

kernel/common/patchfs/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_PLATFORM_PATCHFS)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = [
+    "los_partition_utils.c",
+    "los_patchfs.c",
+  ]
+  public_configs = [ ":public" ]
+}
+
+config("public") {
+  include_dirs = [ "." ]
+}

kernel/common/rootfs/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_PLATFORM_ROOTFS)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = [
+    "los_bootargs.c",
+    "los_rootfs.c",
+  ]
+  public_configs = [ ":public" ]
+}
+
+config("public") {
+  include_dirs = [ "." ]
+}

kernel/extended/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+group("extended") {
+  deps = [
+    "cppsupport",
+    "cpup",
+    "dynload",
+    "hilog",
+    "liteipc",
+    "pipes",
+    "power",
+    "trace",
+    "vdso",
+  ]
+}
+
+config("public") {
+  configs = [
+    "cpup:public",
+    "dynload:public",
+    "vdso:public",
+    "trace:public",
+    "liteipc:public",
+    "pipes:public",
+    "hilog:public",
+  ]
+}

kernel/extended/cppsupport/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_KERNEL_CPPSUPPORT)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = [ "los_cppsupport.c" ]
+}

kernel/extended/cpup/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_KERNEL_CPUP)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = [
+    "cpup_shellcmd.c",
+    "los_cpup.c",
+  ]
+
+  public_configs = [ ":public" ]
+}
+
+config("public") {
+  include_dirs = [ "." ]
+}

kernel/extended/dynload/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_KERNEL_DYNLOAD)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = [
+    "src/los_exec_elf.c",
+    "src/los_load_elf.c",
+  ]
+
+  public_configs = [ ":public" ]
+}
+
+config("public") {
+  include_dirs = [ "include" ]
+}

kernel/extended/hilog/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_BASE_CORE_HILOG)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = [ "//base/hiviewdfx/hilog_lite/frameworks/featured/hiview_log.c" ]
+
+  public_configs = [ ":public" ]
+}
+
+config("public") {
+  include_dirs = [
+    "//base/hiviewdfx/hilog_lite/interfaces/native/kits",
+    "//base/hiviewdfx/hilog_lite/interfaces/native/kits/hilog",
+  ]
+}

kernel/extended/liteipc/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_KERNEL_LITEIPC)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = [ "hm_liteipc.c" ]
+  public_configs = [ ":public" ]
+}
+
+config("public") {
+  include_dirs = [ "." ]
+}

kernel/extended/power/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_KERNEL_PM)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = [ "los_pm.c" ]
+}

kernel/extended/trace/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_KERNEL_TRACE)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = [
+    "los_trace.c",
+    "los_trace_frame.c",
+  ]
+
+  public_configs = [ ":public" ]
+}
+
+config("public") {
+  include_dirs = [ "." ]
+}

kernel/extended/vdso/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_KERNEL_VDSO)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = [
+    "src/los_vdso.c",
+    "src/los_vdso_text.S",
+  ]
+
+  asmflags = [ "-DOHOS_VDSO_SO=\"OHOS-vdso.so\"" ]
+  deps = [ ":copy_ohos_vdso" ]
+  public_configs = [ ":public" ]
+}
+
+config("public") {
+  include_dirs = [ "include" ]
+}
+
+copy("copy_ohos_vdso") {
+  deps = [ "usr:OHOS-vdso" ]
+  sources = [ "$root_out_dir/libOHOS-vdso.so" ]
+  outputs = [ "$root_out_dir/OHOS-vdso.so" ]
+}

kernel/extended/vdso/src/Makefile

@@ -35,6 +35,6 @@ LOCAL_SRCS := $(wildcard *.c) $(wildcard *.S)
 
 LOCAL_INCLUDE := -I $(LITEOSTOPDIR)/kernel/base/include -I $(LITEOSTOPDIR)/kernel/extended/include -I $(LITEOSTOPDIR)/kernel/extended/vdso/include
 
-LOCAL_FLAGS := $(LOCAL_INCLUDE)
+LOCAL_FLAGS := $(LOCAL_INCLUDE) -DOHOS_VDSO_SO=\"../usr/OHOS-vdso.so\"
 
 include $(MODULE)
\ No newline at end of file

kernel/extended/vdso/src/los_vdso_text.S

@@ -31,4 +31,4 @@
     .globl __vdso_text_start
     .section .data.vdso.text
 __vdso_text_start:
-    .incbin "../usr/OHOS-vdso.so"
\ No newline at end of file
+    .incbin OHOS_VDSO_SO
\ No newline at end of file

kernel/extended/vdso/usr/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+shared_library("OHOS-vdso") {
+  sources = [ "los_vdso_sys.c" ]
+
+  include_dirs = [
+    "$LITEOSTOPDIR/kernel/extended/vdso/include",
+    "$LITEOSTOPDIR/kernel/include",
+    "$LITEOSTOPDIR/platform",
+    "$LITEOSTOPDIR/bsd/compat/linuxkpi/include",
+  ]
+
+  cflags = [
+    "-nostdlib",
+    "-fPIC",
+    "-fno-common",
+    "-fno-strict-aliasing",
+  ]
+
+  ldflags = [
+    "-s",
+    "-Bsymbolic",
+    "-Tlos_vdso.ld",
+  ]
+}

kernel/extended/vdso/usr/Makefile

@@ -34,7 +34,7 @@ VDSO_SO = OHOS-vdso
 VDSO_SRCS := los_vdso_sys.c
 VDSO_INCLUDE := -I $(LITEOSTOPDIR)/kernel/extended/vdso/include \
                 -I $(LITEOSTOPDIR)/kernel/include \
-                -I $(LITEOSTOPDIR)/kernel/common \
+                -I $(LITEOSTOPDIR)/platform \
                 -I $(LITEOSTOPDIR)/bsd/compat/linuxkpi/include
 
 VDSO_CCFLAGS := -nostdlib -fPIC -fno-common -fno-strict-aliasing \

kernel/user/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_name = "userinit"
+shared_library(module_name) {
+  sources = [ "src/los_user_init.c" ]
+
+  include_dirs = [
+    "include",
+    "$LITEOSTOPDIR/syscall",
+  ]
+
+  configs = []
+  configs += [
+    "$LITEOSTOPDIR:public",
+    "$LITEOSTOPDIR:los_config",
+  ]
+
+  ldflags = [
+    "-static",
+    "-r",
+  ]
+
+  output_extension = "O"
+}
+
+group("user") {
+  public_deps = [ ":$module_name" ]
+}

lib/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+group("lib") {
+  deps = [
+    "libc",
+    "libmbedtls",
+    "libscrew",
+    "libsec",
+    "zlib",
+  ]
+}
+
+config("public") {
+  configs = [
+    "libc:public",
+    "libmbedtls:public",
+    "libscrew:public",
+    "libsec:public",
+    "zlib:public",
+  ]
+}

lib/libc/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+MUSLDIR = "$LITEOSTHIRDPARTY/musl"
+OPTRTDIR = "$LITEOSTHIRDPARTY/optimized-routines"
+
+import("$MUSLDIR/porting/liteos_a/kernel/musl.gni")
+
+module_switch = defined(LOSCFG_LIB_LIBC)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = MUSL_SRC_COMMON
+
+  if (defined(LOSCFG_ARCH_ARM_AARCH32)) {
+    sources += MUSL_SRC_ARM
+    foreach(f, MUSL_SRC_ARM) {
+      sources -= [ string_replace(f, "/arm/", "/") ]
+    }
+  }
+
+  if (LOSCFG_ARCH_ARM_VER == "armv7-a") {
+    sources -= [
+      "$MUSLPORTINGDIR/src/string/memchr.c",
+      "$MUSLPORTINGDIR/src/string/memcpy.c",
+      "$MUSLPORTINGDIR/src/string/strcmp.c",
+      "$MUSLPORTINGDIR/src/string/strcpy.c",
+      "$MUSLPORTINGDIR/src/string/strlen.c",
+    ]
+    sources += [
+      "$OPTRTDIR/string/arm/memchr.S",
+      "$OPTRTDIR/string/arm/memcpy.S",
+      "$OPTRTDIR/string/arm/strcmp.S",
+      "$OPTRTDIR/string/arm/strcpy.c",
+      "$OPTRTDIR/string/arm/strlen-armv6t2.S",
+    ]
+  }
+
+  public_configs = [ ":public" ]
+  configs += [ ":private" ]
+}
+
+config("public") {
+  include_dirs = [ "$MUSLPORTINGDIR/include" ]
+}
+
+config("private") {
+  if (defined(LOSCFG_COMPILER_CLANG_LLVM)) {
+    cflags = [
+      "-Wno-char-subscripts",
+      "-Wno-unknown-pragmas",
+    ]
+  } else {
+    cflags = [
+      "-frounding-math",
+      "-Wno-unused-but-set-variable",
+      "-Wno-unknown-pragmas",
+    ]
+  }
+
+  include_dirs = [
+    "$MUSLPORTINGDIR/src/include",
+    "$MUSLPORTINGDIR/src/internal",
+  ]
+}

lib/libmbedtls/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_DRIVERS_TZDRIVER)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = [
+    "$LITEOSTHIRDPARTY/mbedtls/library/aes.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/aesni.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/arc4.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/aria.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/asn1parse.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/asn1write.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/base64.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/bignum.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/blowfish.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/camellia.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/ccm.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/certs.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/chacha20.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/chachapoly.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/cipher.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/cipher_wrap.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/cmac.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/ctr_drbg.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/debug.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/des.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/dhm.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/ecdh.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/ecdsa.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/ecjpake.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/ecp.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/ecp_curves.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/entropy.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/entropy_poll.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/error.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/gcm.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/havege.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/hkdf.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/hmac_drbg.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/md.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/md2.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/md4.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/md5.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/md_wrap.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/memory_buffer_alloc.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/net_sockets.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/nist_kw.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/oid.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/padlock.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/pem.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/pk.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/pk_wrap.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/pkcs11.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/pkcs12.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/pkcs5.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/pkparse.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/pkwrite.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/platform.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/platform_util.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/poly1305.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/ripemd160.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/rsa.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/rsa_internal.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/sha1.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/sha256.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/sha512.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/ssl_cache.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/ssl_ciphersuites.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/ssl_cli.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/ssl_cookie.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/ssl_srv.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/ssl_ticket.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/ssl_tls.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/threading.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/timing.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/version.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/version_features.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/x509.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/x509_create.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/x509_crl.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/x509_crt.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/x509_csr.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/x509write_crt.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/x509write_csr.c",
+    "$LITEOSTHIRDPARTY/mbedtls/library/xtea.c",
+  ]
+
+  public_configs = [ ":public" ]
+}
+
+config("public") {
+  include_dirs = [ "$LITEOSTHIRDPARTY/mbedtls/include" ]
+}

lib/libscrew/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = [
+    "src/los_crc32.c",
+    "src/los_rbtree.c",
+  ]
+
+  sources += [ "$LITEOSTHIRDPARTY/FreeBSD/sys/libkern/crc32.c" ]
+
+  public_configs = [ ":public" ]
+}
+
+config("public") {
+  include_dirs = [ "include" ]
+}

lib/libsec/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_LIB_LIBC)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = [
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/fscanf_s.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/fwscanf_s.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/gets_s.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/memcpy_s.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/memmove_s.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/memset_s.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/scanf_s.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/securecutil.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/secureinput_a.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/secureinput_w.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/secureprintoutput_a.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/secureprintoutput_w.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/snprintf_s.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/sprintf_s.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/sscanf_s.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/strcat_s.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/strcpy_s.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/strncat_s.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/strncpy_s.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/strtok_s.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/swprintf_s.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/swscanf_s.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/vfscanf_s.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/vfwscanf_s.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/vscanf_s.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/vsnprintf_s.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/vsprintf_s.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/vsscanf_s.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/vswprintf_s.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/vswscanf_s.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/vwscanf_s.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/wcscat_s.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/wcscpy_s.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/wcsncat_s.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/wcsncpy_s.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/wcstok_s.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/wmemcpy_s.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/wmemmove_s.c",
+    "$LITEOSTHIRDPARTY/bounds_checking_function/src/wscanf_s.c",
+  ]
+
+  public_configs = [ ":public" ]
+}
+
+config("public") {
+  include_dirs = [ "$LITEOSTHIRDPARTY/bounds_checking_function/include" ]
+  defines = [ "SECUREC_IN_KERNEL=0" ]
+}

lib/zlib/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_LIB_ZLIB)
+module_name = "z"
+kernel_module(module_name) {
+  sources = [
+    "$LITEOSTHIRDPARTY/zlib/adler32.c",
+    "$LITEOSTHIRDPARTY/zlib/compress.c",
+    "$LITEOSTHIRDPARTY/zlib/crc32.c",
+    "$LITEOSTHIRDPARTY/zlib/deflate.c",
+    "$LITEOSTHIRDPARTY/zlib/gzclose.c",
+    "$LITEOSTHIRDPARTY/zlib/gzlib.c",
+    "$LITEOSTHIRDPARTY/zlib/gzread.c",
+    "$LITEOSTHIRDPARTY/zlib/gzwrite.c",
+    "$LITEOSTHIRDPARTY/zlib/infback.c",
+    "$LITEOSTHIRDPARTY/zlib/inffast.c",
+    "$LITEOSTHIRDPARTY/zlib/inflate.c",
+    "$LITEOSTHIRDPARTY/zlib/inftrees.c",
+    "$LITEOSTHIRDPARTY/zlib/trees.c",
+    "$LITEOSTHIRDPARTY/zlib/uncompr.c",
+    "$LITEOSTHIRDPARTY/zlib/zutil.c",
+  ]
+
+  public_configs = [ ":public" ]
+}
+
+config("public") {
+  include_dirs = [ "$LITEOSTHIRDPARTY/zlib" ]
+}
+
+group("zlib") {
+  public_deps = [ ":$module_name" ]
+}

liteos.gni

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("$root_out_dir/config.gni")
+
+LITEOSTOPDIR = "//kernel/liteos_a"
+LITEOSTHIRDPARTY = "//third_party"
+HDFTOPDIR = "//drivers/adapter/khdf/liteos"
+
+template("kernel_module") {
+  if (defined(invoker.module_switch) && !invoker.module_switch) {
+    group(target_name) {
+      not_needed(invoker, "*")
+    }
+  } else {
+    static_library(target_name) {
+      forward_variables_from(invoker, "*")
+    }
+  }
+}
+
+template("config") {
+  config(target_name) {
+    if (defined(invoker.module_switch) && !invoker.module_switch && target_name == "public") {
+      not_needed(invoker, "*")
+    } else {
+      forward_variables_from(invoker, "*")
+    }
+  }
+}
+
+set_defaults("kernel_module") {
+  configs = [
+    "$LITEOSTOPDIR:public",
+    "$LITEOSTOPDIR:los_config",
+  ]
+}

net/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+group("net") {
+  deps = [
+    "lwip-2.1",
+    "telnet",
+  ]
+}
+
+config("public") {
+  configs = [
+    "lwip-2.1:public",
+    "telnet:public",
+  ]
+}

net/lwip-2.1/BUILD.gn

+# Copyright (c) 2021-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+import("$LITEOSTHIRDPARTY/lwip/lwip.gni")
+import("lwip_porting.gni")
+
+module_switch = defined(LOSCFG_NET_LWIP_SACK_2_1)
+module_name = "lwip"
+kernel_module(module_name) {
+  include_dirs = [ "$LWIP_PORTING_DIR/enhancement/include" ]
+
+  sources = LWIP_PORTING_FILES + LWIPNOAPPSFILES
+
+  sources -= [
+    "$LWIPDIR/api/sockets.c",
+    "$LWIPDIR/core/ipv4/dhcp.c",
+    "$LWIPDIR/core/ipv4/etharp.c",
+  ]
+
+  public_configs = [ ":public" ]
+
+  defines = [
+    "__LWIP__",
+    "LWIP_NOASSERT",
+    "_BSD_SOURCE=1",
+  ]
+}
+
+config("public") {
+  include_dirs = [ "../mac" ]
+  include_dirs += LWIP_PORTING_INCLUDE_DIRS
+  include_dirs += LWIP_INCLUDE_DIRS
+}
+
+group("lwip-2.1") {
+  public_deps = [ ":$module_name" ]
+}

net/lwip-2.1/lwip_porting.gni

+# Copyright (c) 2021-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+LWIP_PORTING_DIR = get_path_info(".", "abspath")
+
+LWIP_PORTING_INCLUDE_DIRS = [ "$LWIP_PORTING_DIR/porting/include" ]
+
+LWIP_PORTING_FILES = [
+  "$LWIP_PORTING_DIR/porting/src/driverif.c",
+  "$LWIP_PORTING_DIR/porting/src/sockets.c",
+  "$LWIP_PORTING_DIR/porting/src/sys_arch.c",
+  "$LWIP_PORTING_DIR/enhancement/src/api_shell.c",
+  "$LWIP_PORTING_DIR/enhancement/src/fixme.c",
+  "$LWIP_PORTING_DIR/enhancement/src/dhcps.c",
+]

net/telnet/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_NET_TELNET)
+module_name = get_path_info(rebase_path("."), "name")
+kernel_module(module_name) {
+  sources = [
+    "src/telnet_dev.c",
+    "src/telnet_loop.c",
+  ]
+
+  public_configs = [ ":public" ]
+}
+
+config("public") {
+  include_dirs = [ "include" ]
+}

platform/BUILD.gn

+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+cmd = "if [ -f " + rebase_path("//$LOSCFG_BOARD_CONFIG_PATH/BUILD.gn") + " ]; then echo true; else echo false; fi"
+HAVE_BOARD_CONFIG = exec_script("//build/lite/run_shell_cmd.py", [ cmd ], "value")
+
+module_name = "bsp"
+kernel_module(module_name) {
+  sources = [ "main.c" ]
+
+  sources += [
+    "hwi_shell.c",
+    "los_cir_buf.c",
+    "los_config.c",
+    "los_excinfo.c",
+    "los_init.c",
+    "los_magickey.c",
+    "los_printf.c",
+    "los_seq_buf.c",
+  ]
+
+  if (defined(LOSCFG_FS_VFS)) {
+    sources += [
+      "console.c",
+      "virtual_serial.c",
+    ]
+  }
+
+  if (defined(LOSCFG_BASE_CORE_HILOG)) {
+    sources += [ "los_hilog.c" ]
+  }
+
+  public_configs = [ ":public" ]
+}
+
+group("platform") {
+  public_deps = [ ":$module_name" ]
+  deps = [ ":board.ld" ]
+  if (HAVE_BOARD_CONFIG) {
+    deps += [ "//$LOSCFG_BOARD_CONFIG_PATH" ]
+  }
+}
+
+config("public") {
+  include_dirs = [
+    ".",
+  ]
+  if (HAVE_BOARD_CONFIG) {
+    configs = [ "//$LOSCFG_BOARD_CONFIG_PATH:public" ]
+  }
+}
+
+source_set("board") {
+  sources = [ "board.ld.S" ]
+
+  configs = []
+  configs += [
+    "$LITEOSTOPDIR:los_config",
+    "$LITEOSTOPDIR/kernel/base:public",
+    ":public",
+  ]
+
+  asmflags = [
+    "-P",
+    "-E",
+  ]
+}
+
+copy("board.ld") {
+  deps = [ ":board" ]
+  sources = [ "$target_out_dir/board.board.ld.o" ]
+  outputs = [ "$root_out_dir/board.ld" ]
+}

platform/Makefile

@@ -36,13 +36,12 @@ LOCAL_SRCS = $(wildcard ./main.c)
 LOCAL_INCLUDE += -I $(LITEOSTOPDIR)/compat/posix/src \
                  -I $(LITEOSTOPDIR)/bsd/dev/random
 
-LOCAL_SRCS += $(wildcard ../kernel/common/*.c)
-LOCAL_SRCS := $(filter-out ../kernel/common/los_rootfs.c ../kernel/common/los_bootargs.c, $(LOCAL_SRCS))
+LOCAL_SRCS += $(wildcard *.c)
 ifneq ($(LOSCFG_FS_VFS), y)
-LOCAL_SRCS := $(filter-out ../kernel/common/console.c ../kernel/common/virtual_serial.c, $(LOCAL_SRCS))
+LOCAL_SRCS := $(filter-out console.c virtual_serial.c, $(LOCAL_SRCS))
 endif
 ifneq ($(LOSCFG_BASE_CORE_HILOG), y)
-LOCAL_SRCS := $(filter-out ../kernel/common/los_hilog.c, $(LOCAL_SRCS))
+LOCAL_SRCS := $(filter-out los_hilog.c, $(LOCAL_SRCS))
 endif
 
 ifeq ($(LOSCFG_KERNEL_TICKLESS), y)

platform/bsp.mk

@@ -49,7 +49,8 @@ PLATFORM_BSP_BASE := $(LITEOSTOPDIR)/platform
 
 PLATFORM_INCLUDE := -I $(LITEOSTOPDIR)/../../$(LOSCFG_BOARD_CONFIG_PATH) \
                     -I $(LITEOSTOPDIR)/../../$(LOSCFG_BOARD_CONFIG_PATH)/include \
-                    -I $(PLATFORM_BSP_BASE)/../kernel/common \
+                    -I $(PLATFORM_BSP_BASE)/../kernel/common/rootfs \
+                    -I $(PLATFORM_BSP_BASE) \
                     -I $(PLATFORM_BSP_BASE)/../../../drivers/liteos/platform/pm \
                     -I $(PLATFORM_BSP_BASE)/hw/include \
                     -I $(PLATFORM_BSP_BASE)/include

kernel/common/los_config.h → platform/los_config.h

@@ -115,7 +115,7 @@ extern UINT32 __heap_end;
  * @ingroup los_config
  * External configuration item for timer tailoring
  */
-#ifndef LOSCFG_BASE_CORE_TICK_HW_TIME
+#if defined(LOSCFG_BASE_CORE_TICK_HW_TIME) && (LOSCFG_BASE_CORE_TICK_HW_TIME == 0)
 #undef LOSCFG_BASE_CORE_TICK_HW_TIME
 #endif
 /****************************** Hardware interrupt module configuration ******************************/