The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.
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mbed 2
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Diff: TARGET_ARM_CM3DS_MPS2/TOOLCHAIN_GCC_ARM/MPS2.ld
- Revision:
- 145:64910690c574
- Child:
- 165:d1b4690b3f8b
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TARGET_ARM_CM3DS_MPS2/TOOLCHAIN_GCC_ARM/MPS2.ld Wed Jun 21 17:31:38 2017 +0100 @@ -0,0 +1,211 @@ +/* + * MPS2 CMSIS Library + */ +/* + * Copyright (c) 2009-2017 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 CM3DS 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 */