/* Linker script for Silicon Labs EFM32GG devices */ /* */ /* This file is subject to the license terms as defined in ARM's */ /* CMSIS END USER LICENSE AGREEMENT.pdf, governing the use of */ /* Example Code. */ /* */ /* Silicon Laboratories, Inc. 2015 */ /* */ /* Version 4.2.0 */ /* */ /* With the RTOS in use, this does not affect the main stack size. The size of * the stack where main runs is determined via the RTOS. */ STACK_SIZE = 0x400; HEAP_SIZE = 0x6000; #if !defined(MBED_APP_START) #define MBED_APP_START 0x00000000 #endif #if !defined(MBED_APP_SIZE) #define MBED_APP_SIZE 1048576 #endif MEMORY { FLASH (rx) : ORIGIN = MBED_APP_START, LENGTH = MBED_APP_SIZE RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 131072 } /* MBED: mbed needs to be able to dynamically set the interrupt vector table. * We make room for the table at the very beginning of RAM, i.e. at * 0x20000000. We need (16+39) * sizeof(uint32_t) = 220 bytes for EFM32GG */ __vector_size = 0xDC; /* 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 * __copy_table_start__ * __copy_table_end__ * __zero_table_start__ * __zero_table_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 * __Vectors_End * __Vectors_Size */ ENTRY(Reset_Handler) SECTIONS { .text : { KEEP(*(.vectors)) __Vectors_End = .; __Vectors_Size = __Vectors_End - __Vectors; __end__ = .; *(.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 = .; /* To copy multiple ROM to RAM sections, * uncomment .copy.table section and, * define __STARTUP_COPY_MULTIPLE in startup_ARMCMx.S */ /* .copy.table : { . = ALIGN(4); __copy_table_start__ = .; LONG (__etext) LONG (__data_start__) LONG (__data_end__ - __data_start__) LONG (__etext2) LONG (__data2_start__) LONG (__data2_end__ - __data2_start__) __copy_table_end__ = .; } > FLASH */ /* To clear multiple BSS sections, * uncomment .zero.table section and, * define __STARTUP_CLEAR_BSS_MULTIPLE in startup_ARMCMx.S */ /* .zero.table : { . = ALIGN(4); __zero_table_start__ = .; LONG (__bss_start__) LONG (__bss_end__ - __bss_start__) LONG (__bss2_start__) LONG (__bss2_end__ - __bss2_start__) __zero_table_end__ = .; } > FLASH */ .data : { PROVIDE(__etext = LOADADDR(.data)); /* Define a global symbol at end of code, */ PROVIDE(__DATA_ROM = LOADADDR(.data)); /* Symbol is used by startup for data initialization. */ __data_start__ = .; *("dma") PROVIDE( __start_vector_table__ = .); . += __vector_size; PROVIDE( __end_vector_table__ = .); *(vtable) *(.data*) . = ALIGN (4); *(.ram) . = ALIGN(4); /* preinit data */ PROVIDE_HIDDEN (__preinit_array_start = .); KEEP(*(.preinit_array)) PROVIDE_HIDDEN (__preinit_array_end = .); . = ALIGN(4); /* init data */ PROVIDE_HIDDEN (__init_array_start = .); KEEP(*(SORT(.init_array.*))) KEEP(*(.init_array)) PROVIDE_HIDDEN (__init_array_end = .); . = ALIGN(4); /* finit data */ PROVIDE_HIDDEN (__fini_array_start = .); KEEP(*(SORT(.fini_array.*))) KEEP(*(.fini_array)) PROVIDE_HIDDEN (__fini_array_end = .); KEEP(*(.jcr*)) . = ALIGN(4); /* All data end */ __data_end__ = .; } > RAM AT > FLASH /* Uninitialized data section * This region is not initialized by the C/C++ library and can be used to * store state across soft reboots. */ .uninitialized (NOLOAD): { . = ALIGN(32); __uninitialized_start = .; *(.uninitialized) KEEP(*(.keep.uninitialized)) . = ALIGN(32); __uninitialized_end = .; } > RAM .bss : { . = ALIGN(4); __bss_start__ = .; *(.bss*) *(COMMON) . = ALIGN(4); __bss_end__ = .; } > RAM .heap (NOLOAD): { __HeapBase = .; __end__ = .; end = __end__; _end = __end__; . += HEAP_SIZE; __HeapLimit = .; } > RAM __StackTop = ORIGIN(RAM) + LENGTH(RAM); __stack = __StackTop; __StackLimit = __StackTop - STACK_SIZE; ASSERT(__StackLimit >= __HeapLimit, "Region RAM overflowed with stack and heap") }