/* * MPS2 CMSIS Library */ /* * Copyright (c) 2009-2018 ARM Limited. All rights reserved. * * SPDX-License-Identifier: Apache-2.0 * * Licensed under the Apache License, Version 2.0 (the License); you may * not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an AS IS BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /* * This file is derivative of CMSIS V5.00 gcc_arm.ld */ /* Linker script for mbed FVP Cortex-M0 on MPS2 */ /* Linker script to configure memory regions. */ /* The length of the VECTORS region is a bit larger than * is necessary based on the number of exception handlers. */ MEMORY { VECTORS (rx) : ORIGIN = 0x00000000, LENGTH = 0x00000400 FLASH (rx) : ORIGIN = 0x00000400, LENGTH = 0x00040000 - 0x00000400 RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00020000 } /* Linker script to place sections and symbol values. Should be used together * with other linker script that defines memory regions FLASH and RAM. * It references following symbols, which must be defined in code: * Reset_Handler : Entry of reset handler * * It defines following symbols, which code can use without definition: * __exidx_start * __exidx_end * __etext * __data_start__ * __preinit_array_start * __preinit_array_end * __init_array_start * __init_array_end * __fini_array_start * __fini_array_end * __data_end__ * __bss_start__ * __bss_end__ * __end__ * end * __HeapLimit * __StackLimit * __StackTop * __stack */ ENTRY(Reset_Handler) HEAP_SIZE = 0x4000; STACK_SIZE = 0x1000; /* Size of the vector table in SRAM */ M_VECTOR_RAM_SIZE = 0x140; SECTIONS { .isr_vector : { __vector_table = .; KEEP(*(.vector_table)) . = ALIGN(4); } > VECTORS .text : { . = ALIGN(4); *(.text*) KEEP(*(.init)) KEEP(*(.fini)) /* .ctors */ *crtbegin.o(.ctors) *crtbegin?.o(.ctors) *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors) *(SORT(.ctors.*)) *(.ctors) /* .dtors */ *crtbegin.o(.dtors) *crtbegin?.o(.dtors) *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors) *(SORT(.dtors.*)) *(.dtors) *(.rodata*) KEEP(*(.eh_frame*)) } > FLASH .ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } > FLASH __exidx_start = .; .ARM.exidx : { *(.ARM.exidx* .gnu.linkonce.armexidx.*) } > FLASH __exidx_end = .; .interrupts_ram : { . = ALIGN(4); __VECTOR_RAM__ = .; __interrupts_ram_start__ = .; /* Create a global symbol at data start */ . += M_VECTOR_RAM_SIZE; . = ALIGN(4); __interrupts_ram_end__ = .; /* Define a global symbol at data end */ } > RAM .data : { PROVIDE(__etext = LOADADDR(.data)); . = ALIGN(4); __data_start__ = .; *(vtable) *(.data) *(.data*) . = ALIGN(4); /* preinit data */ PROVIDE (__preinit_array_start = .); KEEP(*(.preinit_array)) PROVIDE (__preinit_array_end = .); . = ALIGN(4); /* init data */ PROVIDE (__init_array_start = .); KEEP(*(SORT(.init_array.*))) KEEP(*(.init_array)) PROVIDE (__init_array_end = .); . = ALIGN(4); /* finit data */ PROVIDE (__fini_array_start = .); KEEP(*(SORT(.fini_array.*))) KEEP(*(.fini_array)) PROVIDE (__fini_array_end = .); . = ALIGN(4); /* All data end */ __data_end__ = .; } > RAM AT > FLASH .uninitialized (NOLOAD): { . = ALIGN(32); __uninitialized_start = .; *(.uninitialized) KEEP(*(.keep.uninitialized)) . = ALIGN(32); __uninitialized_end = .; } > RAM .bss : { . = ALIGN(4); __START_BSS = .; __bss_start__ = .; *(.bss) *(.bss*) *(COMMON) . = ALIGN(4); __bss_end__ = .; __END_BSS = .; } > RAM bss_size = __bss_end__ - __bss_start__; .heap : { . = ALIGN(8); __end__ = .; PROVIDE(end = .); __HeapBase = .; . += HEAP_SIZE; __HeapLimit = .; __heap_limit = .; /* Add for _sbrk */ } > RAM /* Set stack top to end of RAM, and stack limit move down by * size of stack_dummy section */ __StackTop = ORIGIN(RAM) + LENGTH(RAM); __StackLimit = __StackTop - STACK_SIZE; PROVIDE(__stack = __StackTop); /* Check if data + heap + stack exceeds RAM limit */ ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack") } /* End of sections */