license: cleanup: add SPDX Apache-2.0 license identifier

Update the files which contain no license information with the
'Apache-2.0' SPDX license identifier.  Many source files in the tree are
missing licensing information, which makes it harder for compliance
tools to determine the correct license.

By default all files without license information are under the default
license of Zephyr, which is Apache version 2.

Signed-off-by: Anas Nashif <[email protected]>

CMakeLists.txt

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 # *DOCUMENTATION*
 #
 # Note that this is *NOT* the top-level CMakeLists.txt. That's in the

arch/CMakeLists.txt

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 add_definitions(-D__ZEPHYR_SUPERVISOR__)
 
 add_subdirectory(common)

arch/arc/CMakeLists.txt

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 # Enable debug support in mdb
 # Dwarf version 2 can be recognized by mdb
 # The default dwarf version in gdb is not recognized by mdb

arch/arc/core/CMakeLists.txt

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 zephyr_library()
 
 zephyr_library_sources(

arch/arc/core/mpu/CMakeLists.txt

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 zephyr_library()
 
 zephyr_library_sources_if_kconfig(arc_core_mpu.c)

arch/arm/CMakeLists.txt

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 set(ARCH_FOR_cortex-m0        armv6s-m        )
 set(ARCH_FOR_cortex-m0plus    armv6s-m        )
 set(ARCH_FOR_cortex-m3        armv7-m         )

arch/arm/core/CMakeLists.txt

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 zephyr_library()
 
 zephyr_compile_options_ifdef(CONFIG_COVERAGE_GCOV

arch/arm/core/cortex_m/CMakeLists.txt

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 zephyr_library()
 
 zephyr_library_sources(

arch/arm/core/cortex_m/cmse/CMakeLists.txt

@@ -1 +1,3 @@
+# SPDX-License-Identifier: Apache-2.0
+
 zephyr_sources(arm_core_cmse.c)

arch/arm/core/cortex_m/mpu/CMakeLists.txt

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 zephyr_library()
 
 zephyr_library_sources(                             arm_core_mpu.c)

arch/arm/core/cortex_m/tz/CMakeLists.txt

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 # '-mcmse' enables the generation of code for the Secure state of the ARMv8-M
 # Security Extensions. This option is required when building a Secure firmware.
 zephyr_compile_options(-mcmse)

arch/common/CMakeLists.txt

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 # Put functions and data in their own binary sections so that ld can
 # garbage collect them
 zephyr_cc_option(-ffunction-sections -fdata-sections)

arch/nios2/CMakeLists.txt

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 if(CONFIG_GP_NONE)
 set(gpopt none)
 elseif(CONFIG_GP_LOCAL)

arch/nios2/core/CMakeLists.txt

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 zephyr_sources(
 	thread.c
 	cpu_idle.c

arch/posix/CMakeLists.txt

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 zephyr_compile_options(
   -fno-freestanding
   -m32

arch/posix/core/CMakeLists.txt

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 zephyr_library()
 zephyr_library_compile_definitions(NO_POSIX_CHEATS)
 zephyr_library_sources(

arch/riscv32/CMakeLists.txt

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 add_subdirectory(core)
 
 set_property(GLOBAL PROPERTY PROPERTY_OUTPUT_FORMAT elf32-littleriscv)

arch/riscv32/core/CMakeLists.txt

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 zephyr_sources(
   cpu_idle.c
   fatal.c

arch/x86/CMakeLists.txt

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 
 # Find out if we are optimizing for size
 get_target_property(zephyr_COMPILE_OPTIONS zephyr_interface INTERFACE_COMPILE_OPTIONS)

arch/x86/core/CMakeLists.txt

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 zephyr_library()
 
 if (CMAKE_C_COMPILER_ID STREQUAL "Clang")

arch/x86_64/CMakeLists.txt

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 set(X86_64_BASE_CFLAGS
     -ffreestanding
     -fno-pic

arch/x86_64/Kconfig

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 config ARCH
 	default "x86_64"
 

arch/x86_64/core/CMakeLists.txt

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 zephyr_library()
 
 zephyr_library_sources(

arch/x86_64/core/Makefile.xuk

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 # Any linux host toolchain should work as a default
 CC ?= gcc
 OBJCOPY ?= objcopy

arch/x86_64/core/xuk-stub32.ld

@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: Apache-2.0 */
+
 ENTRY(_start)
 
 PHDRS {

arch/x86_64/core/xuk64.ld

@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: Apache-2.0 */
+
 SECTIONS {
 	. = 0x100000;
 

arch/xtensa/CMakeLists.txt

@@ -1,2 +1,4 @@
+# SPDX-License-Identifier: Apache-2.0
+
 set_property(GLOBAL PROPERTY PROPERTY_OUTPUT_FORMAT elf32-xtensa-le)
 add_subdirectory(core)

arch/xtensa/core/CMakeLists.txt

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 zephyr_cc_option(-mlongcalls)
 zephyr_sources(
 	cpu_idle.c

arch/xtensa/core/startup/CMakeLists.txt

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 if(CONFIG_XTENSA_RESET_VECTOR)
   zephyr_library()
 

boards/CMakeLists.txt

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 # To avoid a lot of empty CMakeLists.txt files we assume it is not an
 # error if it is missing
 

boards/Kconfig

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 config BOARD_DEPRECATED
 	string
 	help

boards/arc/arduino_101_sss/Kconfig.board

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 config BOARD_ARDUINO_101_SSS
 	bool "Arduino 101 Sensor Sub System"
 	depends on SOC_QUARK_SE_C1000_SS

boards/arc/arduino_101_sss/Kconfig.defconfig

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 if BOARD_ARDUINO_101_SSS
 
 config BOARD

boards/arc/arduino_101_sss/arduino_101_sss.dts

@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: Apache-2.0 */
+
 /dts-v1/;
 
 #include <mem.h>

boards/arc/arduino_101_sss/arduino_101_sss_defconfig

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 CONFIG_ARC=y
 CONFIG_SOC_QUARK_SE_C1000_SS=y
 CONFIG_BOARD_ARDUINO_101_SSS=y

boards/arc/arduino_101_sss/board.cmake

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 if(DEFINED ENV{ZEPHYR_FLASH_OVER_DFU})
   set(BOARD_FLASH_RUNNER dfu-util)
 else()

boards/arc/em_starterkit/CMakeLists.txt

@@ -1,2 +1,4 @@
+# SPDX-License-Identifier: Apache-2.0
+
 zephyr_sources(pmodmux.c)
 zephyr_sources_ifdef(CONFIG_ARC_MPU_ENABLE arc_mpu_regions.c)

boards/arc/em_starterkit/Kconfig.defconfig

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 if BOARD_EM_STARTERKIT
 
 config BOARD

boards/arc/em_starterkit/board.cmake

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 # TODO: can this board just use the usual openocd runner?
 set(BOARD_FLASH_RUNNER em-starterkit)
 set(BOARD_DEBUG_RUNNER em-starterkit)

boards/arc/em_starterkit/board.dtsi

@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: Apache-2.0 */
+
 / {
 	aliases {
 		led0 = &led0;

boards/arc/em_starterkit/em_starterkit_defconfig

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 CONFIG_ARC=y
 CONFIG_SOC_EMSK=y
 CONFIG_SOC_EMSK_EM9D=y

boards/arc/em_starterkit/em_starterkit_em11d_defconfig

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 CONFIG_ARC=y
 CONFIG_SOC_EMSK=y
 CONFIG_SOC_EMSK_EM11D=y

boards/arc/em_starterkit/em_starterkit_em7d_defconfig

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 CONFIG_ARC=y
 CONFIG_SOC_EMSK=y
 CONFIG_SOC_EMSK_EM7D=y

boards/arc/em_starterkit/em_starterkit_em7d_v22_defconfig

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 CONFIG_ARC=y
 CONFIG_SOC_EMSK=y
 CONFIG_SOC_EMSK_EM7D=y

boards/arc/iotdk/CMakeLists.txt

@@ -1 +1,3 @@
+# SPDX-License-Identifier: Apache-2.0
+
 zephyr_sources_ifdef(CONFIG_ARC_MPU_ENABLE arc_mpu_regions.c)

boards/arc/iotdk/Kconfig.defconfig

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 if BOARD_IOTDK
 
 config BOARD

boards/arc/iotdk/board.cmake

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 # TODO: can this board just use the usual openocd runner?
 set(BOARD_FLASH_RUNNER em-starterkit)
 set(BOARD_DEBUG_RUNNER em-starterkit)

boards/arc/iotdk/board.dtsi

@@ -0,0 +1,2 @@
+/* SPDX-License-Identifier: Apache-2.0 */
+

boards/arc/iotdk/iotdk_defconfig

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 CONFIG_ARC=y
 CONFIG_SOC_ARC_IOT=y
 CONFIG_BOARD_IOTDK=y

boards/arc/nsim_em/CMakeLists.txt

@@ -1 +1,3 @@
+# SPDX-License-Identifier: Apache-2.0
+
 zephyr_sources_ifdef(CONFIG_ARC_MPU_ENABLE arc_mpu_regions.c)

boards/arc/nsim_em/Kconfig.defconfig

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 if BOARD_NSIM_EM
 
 config BOARD

boards/arc/nsim_em/board.cmake

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 set(EMU_PLATFORM nsim)
 
 set(BOARD_FLASH_RUNNER arc-nsim)

boards/arc/nsim_em/nsim_em_defconfig

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 CONFIG_ARC=y
 CONFIG_SOC_NSIM=y
 CONFIG_SOC_NSIM_EM=y

boards/arc/nsim_em/nsim_em_mpu_stack_guard_defconfig

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 CONFIG_ARC=y
 CONFIG_SOC_NSIM=y
 CONFIG_SOC_NSIM_EM=y

boards/arc/nsim_em/nsim_sem_defconfig

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 CONFIG_ARC=y
 CONFIG_SOC_NSIM=y
 CONFIG_SOC_NSIM_SEM=y

boards/arc/nsim_em/nsim_sem_mpu_stack_guard_defconfig

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 CONFIG_ARC=y
 CONFIG_SOC_NSIM=y
 CONFIG_SOC_NSIM_SEM=y

boards/arc/quark_se_c1000_ss_devboard/Kconfig.board

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 config BOARD_QUARK_SE_C1000_DEVBOARD_SS
 	bool "Quark SE C1000 - Sensor Sub System"
 	depends on SOC_QUARK_SE_C1000_SS

boards/arc/quark_se_c1000_ss_devboard/Kconfig.defconfig

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 if BOARD_QUARK_SE_C1000_DEVBOARD_SS
 
 config BOARD

boards/arc/quark_se_c1000_ss_devboard/board.cmake

@@ -1,2 +1,4 @@
+# SPDX-License-Identifier: Apache-2.0
+
 board_runner_args(openocd --cmd-pre-load "targets 1")
 include(${ZEPHYR_BASE}/boards/common/openocd.board.cmake)

boards/arc/quark_se_c1000_ss_devboard/quark_se_c1000_ss_devboard.dts

@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: Apache-2.0 */
+
 /dts-v1/;
 
 #include <mem.h>

boards/arc/quark_se_c1000_ss_devboard/quark_se_c1000_ss_devboard_defconfig

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 CONFIG_ARC=y
 CONFIG_SOC_QUARK_SE_C1000_SS=y
 CONFIG_BOARD_QUARK_SE_C1000_DEVBOARD_SS=y

boards/arm/96b_argonkey/96b_argonkey_defconfig

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 CONFIG_ARM=y
 CONFIG_SOC_SERIES_STM32F4X=y
 CONFIG_SOC_STM32F412CG=y

boards/arm/96b_argonkey/CMakeLists.txt

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 zephyr_library()
 zephyr_library_sources(pinmux.c)
 zephyr_library_include_directories(${ZEPHYR_BASE}/drivers)

boards/arm/96b_carbon/96b_carbon_defconfig

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 CONFIG_ARM=y
 CONFIG_SOC_SERIES_STM32F4X=y
 CONFIG_SOC_STM32F401XE=y

boards/arm/96b_carbon/CMakeLists.txt

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 zephyr_library()
 zephyr_library_sources(pinmux.c)
 zephyr_library_include_directories(${ZEPHYR_BASE}/drivers)

boards/arm/96b_carbon/board.cmake

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 board_runner_args(dfu-util "--pid=0483:df11" "--alt=0" "--dfuse")
 
 include(${ZEPHYR_BASE}/boards/common/dfu-util.board.cmake)

boards/arm/96b_carbon_nrf51/96b_carbon_nrf51_defconfig

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 CONFIG_ARM=y
 CONFIG_SOC_FAMILY_NRF=y
 CONFIG_SOC_SERIES_NRF51X=y

boards/arm/96b_neonkey/96b_neonkey_defconfig

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
 CONFIG_ARM=y
 CONFIG_SOC_SERIES_STM32F4X=y
 CONFIG_SOC_STM32F411XE=y