Improved IAR startup file.
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@9644 35acf78f-673a-0410-8e92-d51de3d6d3f4
This commit is contained in:
Giovanni Di Sirio
parent
0791baebdc
commit
6556c5a64f
|
|
@ -15,14 +15,56 @@
|
|||
*/
|
||||
|
||||
/**
|
||||
* @file ARMCMx/IAR/cstartup.s
|
||||
* @file ARMCMx/compilers/IAR/cstartup.s
|
||||
* @brief Generic IAR Cortex-Mx startup file.
|
||||
*
|
||||
* @addtogroup ARMCMx_IAR_STARTUP
|
||||
* @{
|
||||
*/
|
||||
|
||||
#if !defined(__DOXYGEN__)
|
||||
#if !defined(__DOXYGEN__)
|
||||
|
||||
#define SCB_VTOR 0xE000ED08
|
||||
|
||||
/**
|
||||
* @brief VTOR special register initialization.
|
||||
* @details VTOR is initialized to point to the vectors table.
|
||||
* @note IAR assembler #if directive conditions do not work like C/C++ conditions.
|
||||
* @details Set to 0 to disable the function, 1 to enable
|
||||
*/
|
||||
#ifndef CRT0_VTOR_INIT
|
||||
#define CRT0_VTOR_INIT 1
|
||||
#endif
|
||||
/**
|
||||
* @brief Stack segments initialization value.
|
||||
*/
|
||||
#ifndef CRT0_STACKS_FILL_PATTERN
|
||||
#define CRT0_STACKS_FILL_PATTERN 0x55555555
|
||||
#endif
|
||||
|
||||
/**
|
||||
* @brief Stack segments initialization switch.
|
||||
* @details Set to 0 to disable the function, 1 to enable
|
||||
*/
|
||||
#ifndef CRT0_INIT_STACKS
|
||||
#define CRT0_INIT_STACKS 1
|
||||
#endif
|
||||
|
||||
/**
|
||||
* @brief Heap segment initialization value.
|
||||
*/
|
||||
#ifndef CRT0_HEAP_FILL_PATTERN
|
||||
#define CRT0_HEAP_FILL_PATTERN 0xCCCCCCCC
|
||||
#endif
|
||||
|
||||
/**
|
||||
* @brief Heap segment initialization switch.
|
||||
* @details Set to 0 to disable the function, 1 to enable
|
||||
*/
|
||||
#ifndef CRT0_INIT_HEAP
|
||||
#define CRT0_INIT_HEAP 1
|
||||
#endif
|
||||
|
||||
|
||||
MODULE ?cstartup
|
||||
|
||||
|
|
@ -33,35 +75,83 @@ CONTROL_USE_PSP SET 2
|
|||
|
||||
AAPCS INTERWORK, VFP_COMPATIBLE, ROPI
|
||||
PRESERVE8
|
||||
|
||||
SECTION .intvec:CODE:NOROOT(3)
|
||||
|
||||
SECTION CSTACK:DATA:NOROOT(3)
|
||||
PUBLIC __main_thread_stack_base__
|
||||
__main_thread_stack_base__:
|
||||
PUBLIC __heap_end__
|
||||
__heap_end__:
|
||||
|
||||
SECTION HEAP:DATA:NOROOT(3)
|
||||
PUBLIC __heap_base__
|
||||
__heap_base__: /* Note: heap section defines sysheap base */
|
||||
|
||||
SECTION SYSHEAP:DATA:NOROOT(3)
|
||||
PUBLIC __heap_base__
|
||||
__heap_base__:
|
||||
PUBLIC __heap_end__
|
||||
__heap_end__: /* Note: sysheap section defines sysheap end */
|
||||
|
||||
PUBLIC __iar_program_start
|
||||
EXTERN __vector_table
|
||||
EXTWEAK __iar_init_core
|
||||
EXTWEAK __iar_init_vfp
|
||||
EXTERN __cmain
|
||||
EXTERN __vector_table
|
||||
EXTERN __main_stack_base__
|
||||
EXTERN __main_stack_end__
|
||||
EXTERN __process_stack_base__
|
||||
EXTERN __process_stack_end__
|
||||
|
||||
SECTION IRQSTACK:DATA:NOROOT(3)
|
||||
SECTION CSTACK:DATA:NOROOT(3)
|
||||
SECTION .text:CODE:REORDER(2)
|
||||
REQUIRE __vector_table
|
||||
THUMB
|
||||
|
||||
__iar_program_start:
|
||||
cpsid i
|
||||
ldr r0, =SFE(IRQSTACK)
|
||||
msr MSP, r0
|
||||
ldr r0, =SFE(CSTACK)
|
||||
msr PSP, r0
|
||||
movs r0, #CONTROL_MODE_PRIVILEGED | CONTROL_USE_PSP
|
||||
msr CONTROL, r0
|
||||
isb
|
||||
|
||||
#if (CRT0_VTOR_INIT)
|
||||
ldr r0, =__vector_table
|
||||
movw r1, #SCB_VTOR & 0xFFFF
|
||||
movt r1, #SCB_VTOR >> 16
|
||||
str r0, [r1]
|
||||
#endif
|
||||
|
||||
#if (CRT0_INIT_STACKS)
|
||||
ldr r0, =CRT0_STACKS_FILL_PATTERN
|
||||
/* Main Stack initialization. Note, it assumes that the stack size
|
||||
is a multiple of 4 so the linker file must ensure this.*/
|
||||
ldr r1, =__main_stack_base__
|
||||
ldr r2, =__main_stack_end__
|
||||
msloop:
|
||||
cmp r1, r2
|
||||
itt lo
|
||||
strlo r0, [r1], #4
|
||||
blo msloop
|
||||
|
||||
/* Process Stack initialization. Note, it assumes that the stack size
|
||||
is a multiple of 4 so the linker file must ensure this.*/
|
||||
ldr r1, =__process_stack_base__
|
||||
ldr r2, =__process_stack_end__
|
||||
psloop:
|
||||
cmp r1, r2
|
||||
itt lo
|
||||
strlo r0, [r1], #4
|
||||
blo psloop
|
||||
#endif
|
||||
|
||||
#if (CRT0_INIT_HEAP)
|
||||
ldr r0, =CRT0_HEAP_FILL_PATTERN
|
||||
/* Sys Heap initialization. Note, it assumes that the heap size
|
||||
is a multiple of 4 so the linker file must ensure this.*/
|
||||
ldr r1, =__heap_base__
|
||||
ldr r2, =__heap_end__
|
||||
hloop:
|
||||
cmp r1, r2
|
||||
itt lo
|
||||
strlo r0, [r1], #4
|
||||
blo hloop
|
||||
#endif
|
||||
|
||||
bl __early_init
|
||||
bl __iar_init_core
|
||||
bl __iar_init_vfp
|
||||
|
|
|
|||
|
|
@ -15,7 +15,7 @@
|
|||
*/
|
||||
|
||||
/**
|
||||
* @file ARMCMx/IAR/vectors.c
|
||||
* @file ARMCMx/compilers/IAR/vectors.c
|
||||
* @brief Interrupt vectors for Cortex-Mx devices.
|
||||
*
|
||||
* @defgroup ARMCMx_IAR_VECTORS Cortex-Mx Interrupt Vectors
|
||||
|
|
@ -50,7 +50,7 @@
|
|||
|
||||
__vector_table:
|
||||
DCD SFE(IRQSTACK)
|
||||
DCD __iar_program_start
|
||||
DCD __iar_program_start
|
||||
DCD NMI_Handler
|
||||
DCD HardFault_Handler
|
||||
DCD MemManage_Handler
|
||||
|
|
|
|||
Loading…
Reference in New Issue