ARM Architecture Support. More...

Topics
	AArch32 System Registers
	This group provides functions to read and write the AArch32 system registers.
	ARM Assembler Support
	ARM Assembler Support.
	ARM Co-Processor 15 Support
	ARM co-processor 15 (CP15) support.
	ARM Paravirtualization Support
	PMSAv7 Support
	This group provides support functions to manage an Arm PMSAv7 (Protected Memory System Architecture) based Memory Protection Unit (MPU).
	PMSAv8-32 Support
	This group provides support functions to manage an Arm PMSAv8-32 (Protected Memory System Architecture) based Memory Protection Unit (MPU).

Files
file	cpukit/score/cpu/arm/__aeabi_read_tp.c
	This source file contains the implementation of __aeabi_read_tp().
file	cpukit/score/cpu/arm/__tls_get_addr.c
	This source file contains the implementation of __tls_get_addr().
file	cpukit/score/cpu/arm/arm-exception-default.c
	This source file contains the implementation of _ARM_Exception_default().
file	cpukit/score/cpu/arm/arm-exception-frame-print.c
	This source file contains the implementation of _CPU_Exception_frame_print().
file	cpukit/score/cpu/arm/armv4-isr-install-vector.c
	This source file contains the ARM-specific _CPU_ISR_install_vector().
file	cpukit/score/cpu/arm/armv4-sync-synchronize.c
	This source file contains the implementation of __sync_synchronize().
file	cpukit/score/cpu/arm/armv7-thread-idle.c
	This source file contains the implementation of _CPU_Thread_Idle_body().
file	cpukit/score/cpu/arm/armv7m-context-initialize.c
	This source file contains the implementation of _CPU_Context_Initialize().
file	cpukit/score/cpu/arm/armv7m-context-restore.c
	This source file contains the implementation of _CPU_Context_restore().
file	cpukit/score/cpu/arm/armv7m-context-switch.c
	This source file contains the implementation of _CPU_Context_switch().
file	cpukit/score/cpu/arm/armv7m-exception-default.c
	This source file contains the implementation of _ARMV7M_Exception_default().
file	cpukit/score/cpu/arm/armv7m-exception-handler-get.c
	This source file contains the implementation of _ARMV7M_Get_exception_handler().
file	cpukit/score/cpu/arm/armv7m-exception-handler-set.c
	This source file contains the implementation of _ARMV7M_Set_exception_handler().
file	cpukit/score/cpu/arm/armv7m-exception-priority-get.c
	This source file contains the implementation of _ARMV7M_Get_exception_priority().
file	cpukit/score/cpu/arm/armv7m-exception-priority-handler.c
	This source file contains the implementation of _ARMV7M_Set_exception_priority_and_handler().
file	cpukit/score/cpu/arm/armv7m-exception-priority-set.c
	This source file contains the implementation of _ARMV7M_Set_exception_priority().
file	cpukit/score/cpu/arm/armv7m-initialize.c
	This source file contains the implementation of _CPU_Initialize().
file	cpukit/score/cpu/arm/armv7m-isr-dispatch.c
	This source file contains the implementation of _ARMV7M_Thread_dispatch().
file	cpukit/score/cpu/arm/armv7m-isr-enter-leave.c
	This source file contains the implementation of _ARMV7M_Interrupt_service_enter() and _ARMV7M_Interrupt_service_leave().
file	cpukit/score/cpu/arm/armv7m-isr-level-get.c
	This source file contains the implementation of _CPU_ISR_Get_level().
file	cpukit/score/cpu/arm/armv7m-isr-level-set.c
	This source file contains the implementation of _CPU_ISR_Set_level().
file	cpukit/score/cpu/arm/armv7m-isr-vector-install.c
	This source file contains the implementation of _CPU_ISR_install_vector().
file	cpukit/score/cpu/arm/armv7m-multitasking-start-stop.c
	This source file contains the implementation of _ARMV7M_Start_multitasking().
file	cpukit/score/cpu/arm/cpu.c
	This source file contains static assertions to ensure the consistency of interfaces used in C and assembler and it contains the ARM-specific implementation of _CPU_Initialize(), _CPU_ISR_Get_level(), _CPU_ISR_Set_level(), and _CPU_Context_Initialize().
file	cpukit/score/cpu/arm/include/rtems/score/arm.h
	This header file provides defines derived from ARM multilib defines.
file	cpukit/score/cpu/arm/include/rtems/score/armv4.h
	This header file provides interfaces of the ARMv4 architecture support.
file	cpukit/score/cpu/arm/include/rtems/score/armv7m.h
	This header file provides interfaces of the ARMv7-M architecture support.
file	cpukit/score/cpu/arm/include/rtems/score/cpu.h
	This header file defines implementation interfaces pertaining to the port of the executive to the ARM architecture.
file	cpukit/score/cpu/arm/include/rtems/score/cpu_asm.h
	ARM Assembler Support API.
file	cpukit/score/cpu/arm/include/rtems/score/cpuimpl.h
	This header file defines implementation interfaces pertaining to the port of the executive to the ARM architecture.

Data Structures
struct	Context_Control
	Thread register context. More...
struct	ARM_VFP_context
struct	CPU_Exception_frame
	The set of registers that specifies the complete processor state. More...
union	CPU_Exception_frame::[union].__unnamed0__
struct	CPU_Exception_frame::[struct].__unnamed0__.__unnamed0__

Macros
#define	CPU_MODEL_NAME "ARMv4"
#define	ARM_MULTILIB_ARCH_V4
#define	CPU_NAME "ARM"
#define	ARM_SWITCH_REGISTERS
#define	ARM_SWITCH_TO_ARM
#define	ARM_SWITCH_BACK
#define	ARM_SWITCH_OUTPUT
#define	ARM_SWITCH_ADDITIONAL_OUTPUT
#define	CPU_SIMPLE_VECTORED_INTERRUPTS FALSE
#define	CPU_ISR_PASSES_FRAME_POINTER FALSE
#define	CPU_HARDWARE_FP FALSE
#define	CPU_SOFTWARE_FP FALSE
#define	CPU_ALL_TASKS_ARE_FP FALSE
#define	CPU_IDLE_TASK_IS_FP FALSE
#define	CPU_USE_DEFERRED_FP_SWITCH FALSE
#define	CPU_ENABLE_ROBUST_THREAD_DISPATCH TRUE
#define	CPU_STACK_GROWS_UP FALSE
#define	CPU_CACHE_LINE_BYTES 32
#define	CPU_STRUCTURE_ALIGNMENT RTEMS_ALIGNED( CPU_CACHE_LINE_BYTES )
#define	CPU_MODES_INTERRUPT_MASK 0x1
#define	CPU_MPCI_RECEIVE_SERVER_EXTRA_STACK 0
#define	CPU_PROVIDES_ISR_IS_IN_PROGRESS FALSE
#define	CPU_STACK_MINIMUM_SIZE (1024 * 4)
#define	CPU_SIZEOF_POINTER 4
#define	CPU_ALIGNMENT 8
#define	CPU_HEAP_ALIGNMENT CPU_ALIGNMENT
#define	CPU_STACK_ALIGNMENT 8
#define	CPU_INTERRUPT_STACK_ALIGNMENT CPU_CACHE_LINE_BYTES
#define	CPU_USE_GENERIC_BITFIELD_CODE TRUE
#define	CPU_USE_LIBC_INIT_FINI_ARRAY TRUE
#define	CPU_MAXIMUM_PROCESSORS 32
#define	ARM_CONTEXT_CONTROL_THREAD_ID_OFFSET 44
#define	ARM_CONTEXT_CONTROL_ISR_DISPATCH_DISABLE 40
#define	ARM_EXCEPTION_FRAME_SIZE 80
#define	ARM_EXCEPTION_FRAME_REGISTER_R8_OFFSET 32
#define	ARM_EXCEPTION_FRAME_REGISTER_SP_OFFSET 52
#define	ARM_EXCEPTION_FRAME_REGISTER_PC_OFFSET 60
#define	ARM_EXCEPTION_FRAME_REGISTER_CPSR_OFFSET 64
#define	ARM_EXCEPTION_FRAME_VFP_CONTEXT_OFFSET 72
#define	ARM_VFP_CONTEXT_SIZE 264
#define	_CPU_ISR_Disable(_isr_cookie)
#define	_CPU_ISR_Enable(_isr_cookie)
#define	_CPU_ISR_Flash(_isr_cookie)
#define	_CPU_Context_Get_SP(_context)
#define	_CPU_Context_Restart_self(_the_context)
#define	_CPU_Context_Initialize_fp(_destination)
#define	CPU_PER_CPU_CONTROL_SIZE 0
#define	CPU_THREAD_LOCAL_STORAGE_VARIANT 11

Typedefs
typedef void(*)	CPU_ISR_handler(void)
typedef uint32_t	CPU_Counter_ticks
typedef uintptr_t	CPU_Uint32ptr

Enumerations
enum	Arm_symbolic_exception_name { ARM_EXCEPTION_RESET = 0 , ARM_EXCEPTION_UNDEF = 1 , ARM_EXCEPTION_SWI = 2 , ARM_EXCEPTION_PREF_ABORT = 3 , ARM_EXCEPTION_DATA_ABORT = 4 , ARM_EXCEPTION_RESERVED = 5 , ARM_EXCEPTION_IRQ = 6 , ARM_EXCEPTION_FIQ = 7 , MAX_EXCEPTIONS = 8 , ARM_EXCEPTION_MAKE_ENUM_32_BIT = 0x7fffffff }

Functions
void	_CPU_ISR_Set_level (uint32_t level)
uint32_t	_CPU_ISR_Get_level (void)
void	_CPU_Context_Initialize (Context_Control the_context, void stack_area_begin, size_t stack_area_size, uint32_t new_level, void(entry_point)(void), bool is_fp, void tls_area)
void	_CPU_Initialize (void)
	CPU initialization.
void	_CPU_ISR_install_vector (uint32_t vector, CPU_ISR_handler new_handler, CPU_ISR_handler *old_handler)
void	_CPU_Context_switch (Context_Control run, Context_Control heir)
	CPU switch context.
RTEMS_NO_RETURN void	_CPU_Context_switch_no_return (Context_Control executing, Context_Control heir)
RTEMS_NO_RETURN void	_CPU_Context_restore (Context_Control *new_context)
uint32_t	_CPU_Counter_frequency (void)
CPU_Counter_ticks	_CPU_Counter_read (void)
RTEMS_NO_RETURN void *	_CPU_Thread_Idle_body (uintptr_t ignored)
void	_CPU_Exception_frame_print (const CPU_Exception_frame *frame)
RTEMS_NO_RETURN void	_ARM_Exception_default (CPU_Exception_frame *frame)
void	_CPU_Context_volatile_clobber (uintptr_t pattern)
void	_CPU_Context_validate (uintptr_t pattern)
RTEMS_NO_RETURN void	_CPU_Exception_resume (const CPU_Exception_frame *frame)

Program Status Register
#define	ARM_PSR_N (1 << 31)
#define	ARM_PSR_Z (1 << 30)
#define	ARM_PSR_C (1 << 29)
#define	ARM_PSR_V (1 << 28)
#define	ARM_PSR_Q (1 << 27)
#define	ARM_PSR_J (1 << 24)
#define	ARM_PSR_GE_SHIFT 16
#define	ARM_PSR_GE_MASK (0xf << ARM_PSR_GE_SHIFT)
#define	ARM_PSR_E (1 << 9)
#define	ARM_PSR_A (1 << 8)
#define	ARM_PSR_I (1 << 7)
#define	ARM_PSR_F (1 << 6)
#define	ARM_PSR_T (1 << 5)
#define	ARM_PSR_M_SHIFT 0
#define	ARM_PSR_M_MASK (0x1f << ARM_PSR_M_SHIFT)
#define	ARM_PSR_M_USR 0x10
#define	ARM_PSR_M_FIQ 0x11
#define	ARM_PSR_M_IRQ 0x12
#define	ARM_PSR_M_SVC 0x13
#define	ARM_PSR_M_ABT 0x17
#define	ARM_PSR_M_HYP 0x1a
#define	ARM_PSR_M_UND 0x1b
#define	ARM_PSR_M_SYS 0x1f

Detailed Description

ARM Architecture Support.

Macro Definition Documentation

◆ _CPU_Context_Get_SP

#define _CPU_Context_Get_SP ( _context )

Value:

(_context)->register_sp

◆ _CPU_Context_Initialize_fp

#define _CPU_Context_Initialize_fp ( _destination )

Value:

do { \
  *(*(_destination)) = _CPU_Null_fp_context; \
} while (0)

◆ _CPU_Context_Restart_self

#define _CPU_Context_Restart_self ( _the_context )

Value:

_CPU_Context_restore( (_the_context) );

◆ _CPU_ISR_Disable

#define _CPU_ISR_Disable ( _isr_cookie )

Value:

do { \
  _isr_cookie = arm_interrupt_disable(); \
} while (0)

◆ _CPU_ISR_Enable

#define _CPU_ISR_Enable ( _isr_cookie )

Value:

arm_interrupt_enable( _isr_cookie )

◆ _CPU_ISR_Flash

#define _CPU_ISR_Flash ( _isr_cookie )

Value:

arm_interrupt_flash( _isr_cookie )

Typedef Documentation

◆ CPU_Uint32ptr

typedef uintptr_t CPU_Uint32ptr

Type that can store a 32-bit integer or a pointer.

Topics

Files

Data Structures

Macros

Typedefs

Enumerations

Functions

Program Status Register

Detailed Description

Macro Definition Documentation

◆ _CPU_Context_Get_SP

◆ _CPU_Context_Initialize_fp

◆ _CPU_Context_Restart_self

◆ _CPU_ISR_Disable

◆ _CPU_ISR_Enable

◆ _CPU_ISR_Flash

Typedef Documentation

◆ CPU_Uint32ptr