/* This is the stack that is used by code running within main() * In case of NORTOS, * - This means all the code outside of ISR uses this stack * In case of FreeRTOS * - This means all the code until vTaskStartScheduler() is called in main() * uses this stack. * - After vTaskStartScheduler() each task created in FreeRTOS has its own stack */ --stack_size=16384 /* This is the heap size for malloc() API in NORTOS and FreeRTOS * This is also the heap used by pvPortMalloc in FreeRTOS */ --heap_size=32768 -e_vectors /* This is the entry of the application, _vector MUST be placed starting address 0x0 */ /* This is the size of stack when R5 is in IRQ mode * In NORTOS, * - Here interrupt nesting is enabled * - This is the stack used by ISRs registered as type IRQ * In FreeRTOS, * - Here interrupt nesting is enabled * - This is stack that is used initally when a IRQ is received * - But then the mode is switched to SVC mode and SVC stack is used for all user ISR callbacks * - Hence in FreeRTOS, IRQ stack size is less and SVC stack size is more */ __IRQ_STACK_SIZE = 256; /* This is the size of stack when R5 is in IRQ mode * - In both NORTOS and FreeRTOS nesting is disabled for FIQ */ __FIQ_STACK_SIZE = 256; __SVC_STACK_SIZE = 4096; /* This is the size of stack when R5 is in SVC mode */ __ABORT_STACK_SIZE = 256; /* This is the size of stack when R5 is in ABORT mode */ __UNDEFINED_STACK_SIZE = 256; /* This is the size of stack when R5 is in UNDEF mode */ SECTIONS { .vectors : { } > R5F_VECS , palign(8) GROUP : { .text.hwi : { } palign(8) .text.cache : { } palign(8) .text.mpu : { } palign(8) .text.boot : { } palign(8) .text:abort : { } palign(8) } > MSRAM GROUP : { .text : { } palign(8) .rodata : { } palign(8) } > DDR_ALL_X GROUP : { .data : { } palign(8) } > DDR_ALL_X GROUP : { .bss : { } palign(8) RUN_START(__BSS_START) RUN_END(__BSS_END) .sysmem : { } palign(8) .stack : { } palign(8) } > DDR_ALL_X GROUP : { .irqstack : { . = . + __IRQ_STACK_SIZE; } align(8) RUN_START(__IRQ_STACK_START) RUN_END(__IRQ_STACK_END) .fiqstack : { . = . + __FIQ_STACK_SIZE; } align(8) RUN_START(__FIQ_STACK_START) RUN_END(__FIQ_STACK_END) .svcstack : { . = . + __SVC_STACK_SIZE; } align(8) RUN_START(__SVC_STACK_START) RUN_END(__SVC_STACK_END) .abortstack : { . = . + __ABORT_STACK_SIZE; } align(8) RUN_START(__ABORT_STACK_START) RUN_END(__ABORT_STACK_END) .undefinedstack : { . = . + __UNDEFINED_STACK_SIZE; } align(8) RUN_START(__UNDEFINED_STACK_START) RUN_END(__UNDEFINED_STACK_END) } > MSRAM GROUP : { .ARM.exidx : { } palign(8) .init_array : { } palign(8) .fini_array : { } palign(8) } > MSRAM .bss.user_shared_mem (NOLOAD) : { } > USER_SHM_MEM .bss.log_shared_mem (NOLOAD) : { } > LOG_SHM_MEM .bss.ipc_vring_mem (NOLOAD) : { } > RTOS_NORTOS_IPC_SHM_MEM .bss.nocache (NOLOAD) : { } > NON_CACHE_MEM } MEMORY { R5F_VECS : ORIGIN = 0x0 , LENGTH = 0x40 R5F_TCMA : ORIGIN = 0x40 , LENGTH = 0x7FC0 R5F_TCMB0 : ORIGIN = 0x41010000 , LENGTH = 0x8000 NON_CACHE_MEM : ORIGIN = 0x70060000 , LENGTH = 0x8000 MSRAM : ORIGIN = 0x70080000 , LENGTH = 0x40000 USER_SHM_MEM : ORIGIN = 0x701D0000 , LENGTH = 0x80 LOG_SHM_MEM : ORIGIN = 0x701D0080 , LENGTH = 0x3F80 RTOS_NORTOS_IPC_SHM_MEM : ORIGIN = 0x701D4000 , LENGTH = 0xC000 FLASH : ORIGIN = 0x60100000 , LENGTH = 0x80000 DDR_ALL_X : ORIGIN = 0x80000000 , LENGTH = 0x2000000 /* For memory Regions not defined in this core but shared by other cores with the current core */ }