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zephyr/arch/arm/core/Kconfig

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arm: Improve Kconfig option organization The Cortex-M related Kconfig menus and options no longer show up at the top level when "make ARCH=arm menuconfig" is issued. They show up under the "General Platform Configuration" menu. Change-Id: I6bf012e628212340f5e089d0193a9a71d90c79b9 Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2015-07-28 22:05:39 +08:00
# Kconfig - ARM core configuration options
#
# Copyright (c) 2015 Wind River Systems, Inc.
#
license: Replace Apache boilerplate with SPDX tag Replace the existing Apache 2.0 boilerplate header with an SPDX tag throughout the zephyr code tree. This patch was generated via a script run over the master branch. Also updated doc/porting/application.rst that had a dependency on line numbers in a literal include. Manually updated subsys/logging/sys_log.c that had a malformed header in the original file. Also cleanup several cases that already had a SPDX tag and we either got a duplicate or missed updating. Jira: ZEP-1457 Change-Id: I6131a1d4ee0e58f5b938300c2d2fc77d2e69572c Signed-off-by: David B. Kinder <david.b.kinder@intel.com> Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-01-19 09:01:01 +08:00
# SPDX-License-Identifier: Apache-2.0
arm: Improve Kconfig option organization The Cortex-M related Kconfig menus and options no longer show up at the top level when "make ARCH=arm menuconfig" is issued. They show up under the "General Platform Configuration" menu. Change-Id: I6bf012e628212340f5e089d0193a9a71d90c79b9 Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2015-07-28 22:05:39 +08:00
#
config CPU_CORTEX
bool
# Omit prompt to signify "hidden" option
default n
help
kconfig: fix help syntax and add spaces Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2017-12-13 23:08:21 +08:00
This option signifies the use of a CPU of the Cortex family.
arm: Improve Kconfig option organization The Cortex-M related Kconfig menus and options no longer show up at the top level when "make ARCH=arm menuconfig" is issued. They show up under the "General Platform Configuration" menu. Change-Id: I6bf012e628212340f5e089d0193a9a71d90c79b9 Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2015-07-28 22:05:39 +08:00
config CPU_CORTEX_M
bool
# Omit prompt to signify "hidden" option
default n
select CPU_CORTEX
arm: use interrupt stack during early init The ARM Cortex-M early boot was using a custom stack at the end of the SRAM instead of the interrupt stack. This works as long as no static data that needs a known initial value occupies that stack space. This has probably not been an issue because the .noinit section is at the very end of the image, but it was still wrong to use that region of memory for that initial stack. To be able to use the interrupt stack during early boot, the stack has to be released before an interrupt can happen. Since ARM Cortex-M uses PendSV as a very low priority exception for context switching, if a device driver installs and enables an interrupt during the PRE_KERNEL initialization points, an interrupt could take precedence over PendSV while the initial dummy thread has not yet been context switched of and thus released the interrupt stack. To address this, rather than using _Swap() and thus triggering PendSV, the initialization logic switches to the main stack and branches to _main() directly instead. Fixes ZEP-1309 Change-Id: If0b62cc66470b45b601e63826b5b3306e6a25ae9 Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2016-11-21 00:08:53 +08:00
select ARCH_HAS_CUSTOM_SWAP_TO_MAIN
arm: cmsis: Introduce CMSIS layer Support using CMSIS defines and functions, we either pull the expect defines/enum from the SoC HAL layers via <soc.h> for the SoC or we provide a default set based on __NVIC_PRIO_BITS is defined. We provide defaults in the case for: IRQn_Type enum *_REV define (set to 0) __MPU_PRESENT define (set to 0 - no MPU) __NVIC_PRIO_BITS define (set to CONFIG_NUM_IRQ_PRIO_BITS) __Vendor_SysTickConfig (set to 0 - standard SysTick) Jira: ZEP-1568 Change-Id: Ibc203de79f4697b14849b69c0e8c5c43677b5c6e Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no> Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-01-14 00:46:53 +08:00
select HAS_CMSIS
misc: Generalize LOAD_OFFSET support Instead of FLASH_LOAD_OFFSET being something specific to cortex-m, add it generally to misc/Kconfig, along with a hidden config HAS_LOAD_OFFSET which can be selected by the architectures as they add support for the functionality. Change-Id: I256ff8cf4e9b8493b26354c3b93fe1f7017d4887 Signed-off-by: David Brown <david.brown@linaro.org>
2017-04-11 00:30:51 +08:00
select HAS_FLASH_LOAD_OFFSET
arm: dts: Cleanup HAS_DTS Now that all ARM platforms have a device tree we can move selecting of HAS_DTS up and remove any !HAS_DTS cases, as well as setting in all the defconfigs. Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-05-12 04:37:01 +08:00
select HAS_DTS
arch: arm: add initial support for CONFIG_USERSPACE add related configs & (stub) functions for enabling CONFIG_USERSPACE on arm w/o build errors. Signed-off-by: Chunlin Han <chunlin.han@linaro.org>
2017-09-26 20:59:35 +08:00
select ARCH_HAS_STACK_PROTECTION if ARM_CORE_MPU
arm: userspace: Add ARM userspace infrastructure This patch adds support for userspace on ARM architectures. Arch specific calls for transitioning threads to user mode, system calls, and associated handlers. Signed-off-by: Andy Gross <andy.gross@linaro.org>
2017-12-09 02:22:49 +08:00
select ARCH_HAS_USERSPACE if ARM_CORE_MPU
arm: Improve Kconfig option organization The Cortex-M related Kconfig menus and options no longer show up at the top level when "make ARCH=arm menuconfig" is issued. They show up under the "General Platform Configuration" menu. Change-Id: I6bf012e628212340f5e089d0193a9a71d90c79b9 Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2015-07-28 22:05:39 +08:00
help
kconfig: fix help syntax and add spaces Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2017-12-13 23:08:21 +08:00
This option signifies the use of a CPU of the Cortex-M family.
arm: Improve Kconfig option organization The Cortex-M related Kconfig menus and options no longer show up at the top level when "make ARCH=arm menuconfig" is issued. They show up under the "General Platform Configuration" menu. Change-Id: I6bf012e628212340f5e089d0193a9a71d90c79b9 Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2015-07-28 22:05:39 +08:00
arm: systick: Some SoCs do not have systick Make the systick feature optional that can be selected by the SoC. Change-Id: I4a405640b84daecc17fc1882743d3cafb78ff861 Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-11-26 22:20:15 +08:00
config CPU_HAS_SYSTICK
bool
# Omit prompt to signify "hidden" option
default n
help
kconfig: fix help syntax and add spaces Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2017-12-13 23:08:21 +08:00
This option is enabled when the CPU has systick timer implemented.
arm: systick: Some SoCs do not have systick Make the systick feature optional that can be selected by the SoC. Change-Id: I4a405640b84daecc17fc1882743d3cafb78ff861 Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-11-26 22:20:15 +08:00
arch: arm: set interrupt stack protection with MSPLIM This commit implements the build-in interrupt stack protection via the native MSPLIM register in ARMv8-M MCUs that support the Main Extension. Main stack pointer overflows will cause Stack Overflow UsageFaults. In addition, the commit introduces a new config option, BUILTIN_STACK_GUARD, allowing the user to enable and use the built-in stack protection in ARMv8-M firmware. Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
2018-03-12 00:21:47 +08:00
config BUILTIN_STACK_GUARD
bool "Thread Stack Guards based on built-in ARM stack limit checking"
depends on CPU_CORTEX_M_HAS_SPLIM
arch: arm: thread built-in stack guard implementation This commit activates the built-in stack guard on the main_thread before jumping to it upon system initialization. Stack guard is activated if BUILTIN_STACK_GUARD is enabled by the user. The commit also activates built-in thread stack guards at every context switch, if BUILTIN_STACK_GUARD enabled by the user. Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
2018-03-12 05:29:25 +08:00
select THREAD_STACK_INFO
arch: arm: set interrupt stack protection with MSPLIM This commit implements the build-in interrupt stack protection via the native MSPLIM register in ARMv8-M MCUs that support the Main Extension. Main stack pointer overflows will cause Stack Overflow UsageFaults. In addition, the commit introduces a new config option, BUILTIN_STACK_GUARD, allowing the user to enable and use the built-in stack protection in ARMv8-M firmware. Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
2018-03-12 00:21:47 +08:00
default n
help
Enable Thread/Interrupt Stack Guards via built-in Stack Pointer
limit checking. The functionality must be supported by HW.
arch: arm: add initial support for CONFIG_USERSPACE add related configs & (stub) functions for enabling CONFIG_USERSPACE on arm w/o build errors. Signed-off-by: Chunlin Han <chunlin.han@linaro.org>
2017-09-26 20:59:35 +08:00
config ARM_STACK_PROTECTION
bool
default y if HW_STACK_PROTECTION
arch: arm: set interrupt stack protection with MSPLIM This commit implements the build-in interrupt stack protection via the native MSPLIM register in ARMv8-M MCUs that support the Main Extension. Main stack pointer overflows will cause Stack Overflow UsageFaults. In addition, the commit introduces a new config option, BUILTIN_STACK_GUARD, allowing the user to enable and use the built-in stack protection in ARMv8-M firmware. Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
2018-03-12 00:21:47 +08:00
select BUILTIN_STACK_GUARD if CPU_CORTEX_M_HAS_SPLIM
select MPU_STACK_GUARD if (!BUILTIN_STACK_GUARD && ARM_CORE_MPU)
arch: arm: add initial support for CONFIG_USERSPACE add related configs & (stub) functions for enabling CONFIG_USERSPACE on arm w/o build errors. Signed-off-by: Chunlin Han <chunlin.han@linaro.org>
2017-09-26 20:59:35 +08:00
help
arch: arm: set interrupt stack protection with MSPLIM This commit implements the build-in interrupt stack protection via the native MSPLIM register in ARMv8-M MCUs that support the Main Extension. Main stack pointer overflows will cause Stack Overflow UsageFaults. In addition, the commit introduces a new config option, BUILTIN_STACK_GUARD, allowing the user to enable and use the built-in stack protection in ARMv8-M firmware. Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
2018-03-12 00:21:47 +08:00
This option enables either:
- The built-in Stack Pointer limit checking, or
- the MPU-based stack guard
to cause a system fatal error
kconfig: fix help syntax and add spaces Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2017-12-13 23:08:21 +08:00
if the bounds of the current process stack are overflowed.
arch: arm: set interrupt stack protection with MSPLIM This commit implements the build-in interrupt stack protection via the native MSPLIM register in ARMv8-M MCUs that support the Main Extension. Main stack pointer overflows will cause Stack Overflow UsageFaults. In addition, the commit introduces a new config option, BUILTIN_STACK_GUARD, allowing the user to enable and use the built-in stack protection in ARMv8-M firmware. Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
2018-03-12 00:21:47 +08:00
The two stack guard options are mutually exclusive. The
selection of the built-in Stack Pointer limit checking is
prioritized over the MPU-based stack guard.
arch: arm: add initial support for CONFIG_USERSPACE add related configs & (stub) functions for enabling CONFIG_USERSPACE on arm w/o build errors. Signed-off-by: Chunlin Han <chunlin.han@linaro.org>
2017-09-26 20:59:35 +08:00
arch: arm: define the ARM_SECURE_FIRMWARE option This commit introduces the ARM_SECURE_FIRMWARE k-option, which indicates that we are building an ARM Secure application. Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
2018-03-02 04:15:54 +08:00
config ARM_SECURE_FIRMWARE
bool
default n
help
arch: arm: improve help text for ARM_SECURE_FIRMWARE This commit improves the help text description for K-config option: ARM_SECURE_FIRMWARE. Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
2018-05-22 18:00:16 +08:00
This option indicates that we are building a Zephyr image that
is intended to execute in Secure state. The option is only
applicable to ARMv8-M MCUs that implement the Security Extension.
arch: arm: define the ARM_SECURE_FIRMWARE option This commit introduces the ARM_SECURE_FIRMWARE k-option, which indicates that we are building an ARM Secure application. Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
2018-03-02 04:15:54 +08:00
This option enables Zephyr to include code that executes in
Secure state, as well as to exclude code that is designed to
arch: arm: improve help text for ARM_SECURE_FIRMWARE This commit improves the help text description for K-config option: ARM_SECURE_FIRMWARE. Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
2018-05-22 18:00:16 +08:00
execute only in Non-secure state.
arch: arm: define the ARM_SECURE_FIRMWARE option This commit introduces the ARM_SECURE_FIRMWARE k-option, which indicates that we are building an ARM Secure application. Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
2018-03-02 04:15:54 +08:00
Code executing in Secure state has access to both the Secure
and Non-Secure resources of the Cortex-M MCU.
Code executing in Non-Secure state may trigger Secure Faults,
if Secure MCU resources are accessed from the Non-Secure state.
Secure Faults may only be handled by code executing in Secure
state.
arch: arm: fix a typos in Kconfig file Architectue => Architecture Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2018-05-27 04:17:11 +08:00
menu "Architecture Floating Point Options"
arm float: Add Kconfig options Adds Kconfig options CPU_HAS_FPU, FLOAT and FP_SHARING for the arm architecture. NOTE: All SOCs in the MK64F12 family have an FPU so that makes it a convenient location to enable the hidden CPU_HAS_FPU option. Change-Id: I71771d24f20f52079314bb8db9bf8a0aa827ab41 Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-05-16 23:21:02 +08:00
depends on CPU_HAS_FPU
arm: Add support for both floating point ABIs Add a Kconfig option to select between the Hard and Soft Float ABIs. We also default to the Hard Float ABI as this is what older SDK versions supported. JIRA: ZEP-555 Change-Id: I2180c98cd7556ab49f5ca9b46b31add2c11bd07b Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2016-06-30 03:42:09 +08:00
choice
prompt "Floating point ABI"
default FP_HARDABI
depends on FLOAT
config FP_HARDABI
bool "Floating point Hard ABI"
depends on FLOAT
help
kconfig: fix help syntax and add spaces Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2017-12-13 23:08:21 +08:00
This option selects the Floating point ABI in which hardware floating
point instructions are generated and uses FPU-specific calling
conventions
arm: Add support for both floating point ABIs Add a Kconfig option to select between the Hard and Soft Float ABIs. We also default to the Hard Float ABI as this is what older SDK versions supported. JIRA: ZEP-555 Change-Id: I2180c98cd7556ab49f5ca9b46b31add2c11bd07b Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2016-06-30 03:42:09 +08:00
config FP_SOFTABI
bool "Floating point Soft ABI"
depends on FLOAT
help
kconfig: fix help syntax and add spaces Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2017-12-13 23:08:21 +08:00
This option selects the Floating point ABI in which hardware floating
point instructions are generated but soft-float calling conventions.
arm: Add support for both floating point ABIs Add a Kconfig option to select between the Hard and Soft Float ABIs. We also default to the Hard Float ABI as this is what older SDK versions supported. JIRA: ZEP-555 Change-Id: I2180c98cd7556ab49f5ca9b46b31add2c11bd07b Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2016-06-30 03:42:09 +08:00
endchoice
arm float: Add Kconfig options Adds Kconfig options CPU_HAS_FPU, FLOAT and FP_SHARING for the arm architecture. NOTE: All SOCs in the MK64F12 family have an FPU so that makes it a convenient location to enable the hidden CPU_HAS_FPU option. Change-Id: I71771d24f20f52079314bb8db9bf8a0aa827ab41 Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-05-16 23:21:02 +08:00
endmenu
arm: Improve Kconfig option organization The Cortex-M related Kconfig menus and options no longer show up at the top level when "make ARCH=arm menuconfig" is issued. They show up under the "General Platform Configuration" menu. Change-Id: I6bf012e628212340f5e089d0193a9a71d90c79b9 Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2015-07-28 22:05:39 +08:00
source "arch/arm/core/cortex_m/Kconfig"
arm: core: mpu: Add ARM MPU support This patch adds an initial driver for the ARM MPU. This driver has been tested on ARM Beetle and STM32F4. Change-Id: I2bc4031961ec5a1d569929249237646f4a349f16 Signed-off-by: Vincenzo Frascino <vincenzo.frascino@linaro.org>
2017-03-16 22:28:35 +08:00
if CPU_HAS_MPU
source "arch/arm/core/cortex_m/mpu/Kconfig"
endif