mbed official / mbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Dependents:   hello SerialTestv11 SerialTestv12 Sierpinski ... more

mbed 2

This is the mbed 2 library. If you'd like to learn about Mbed OS please see the mbed-os docs.

TARGET_EFM32PG_STK3401/TOOLCHAIN_GCC_ARM/efm32pg1b.ld@166:5aab5a7997ee, 2018-04-20 (annotated)

Committer:
Anna Bridge
Date:
Fri Apr 20 11:08:29 2018 +0100
Revision:
166:5aab5a7997ee
Parent:
156:ff21514d8981
Child:
171:3a7713b1edbc
Updating mbed 2 version number

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 156:ff21514d8981 1 /* Linker script for Silicon Labs EFM32PG1B devices */
AnnaBridge 156:ff21514d8981 2 /* */
AnnaBridge 156:ff21514d8981 3 /* This file is subject to the license terms as defined in ARM's */
AnnaBridge 156:ff21514d8981 4 /* CMSIS END USER LICENSE AGREEMENT.pdf, governing the use of */
AnnaBridge 156:ff21514d8981 5 /* Example Code. */
AnnaBridge 156:ff21514d8981 6 /* */
AnnaBridge 156:ff21514d8981 7 /* Silicon Laboratories, Inc. 2015 */
AnnaBridge 156:ff21514d8981 8 /* */
AnnaBridge 156:ff21514d8981 9 /* Version 4.2.0 */
AnnaBridge 156:ff21514d8981 10 /* */
AnnaBridge 156:ff21514d8981 11
AnnaBridge 156:ff21514d8981 12 #if !defined(MBED_APP_START)
AnnaBridge 156:ff21514d8981 13 #define MBED_APP_START 0x00000000
AnnaBridge 156:ff21514d8981 14 #endif
AnnaBridge 156:ff21514d8981 15
AnnaBridge 156:ff21514d8981 16 #if !defined(MBED_APP_SIZE)
AnnaBridge 156:ff21514d8981 17 #define MBED_APP_SIZE 262144
AnnaBridge 156:ff21514d8981 18 #endif
AnnaBridge 156:ff21514d8981 19
AnnaBridge 156:ff21514d8981 20 MEMORY
AnnaBridge 156:ff21514d8981 21 {
AnnaBridge 156:ff21514d8981 22 FLASH (rx) : ORIGIN = MBED_APP_START, LENGTH = MBED_APP_SIZE
AnnaBridge 156:ff21514d8981 23 RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 32768
AnnaBridge 156:ff21514d8981 24 }
AnnaBridge 156:ff21514d8981 25
AnnaBridge 156:ff21514d8981 26 /* MBED: mbed needs to be able to dynamically set the interrupt vector table.
AnnaBridge 156:ff21514d8981 27 * We make room for the table at the very beginning of RAM, i.e. at
AnnaBridge 156:ff21514d8981 28 * 0x20000000. We need (16+34) * sizeof(uint32_t) = 200 bytes for EFM32PG */
AnnaBridge 156:ff21514d8981 29 __vector_size = 0xC8;
AnnaBridge 156:ff21514d8981 30
AnnaBridge 156:ff21514d8981 31 /* Linker script to place sections and symbol values. Should be used together
AnnaBridge 156:ff21514d8981 32 * with other linker script that defines memory regions FLASH and RAM.
AnnaBridge 156:ff21514d8981 33 * It references following symbols, which must be defined in code:
AnnaBridge 156:ff21514d8981 34 * Reset_Handler : Entry of reset handler
AnnaBridge 156:ff21514d8981 35 *
AnnaBridge 156:ff21514d8981 36 * It defines following symbols, which code can use without definition:
AnnaBridge 156:ff21514d8981 37 * __exidx_start
AnnaBridge 156:ff21514d8981 38 * __exidx_end
AnnaBridge 156:ff21514d8981 39 * __copy_table_start__
AnnaBridge 156:ff21514d8981 40 * __copy_table_end__
AnnaBridge 156:ff21514d8981 41 * __zero_table_start__
AnnaBridge 156:ff21514d8981 42 * __zero_table_end__
AnnaBridge 156:ff21514d8981 43 * __etext
AnnaBridge 156:ff21514d8981 44 * __data_start__
AnnaBridge 156:ff21514d8981 45 * __preinit_array_start
AnnaBridge 156:ff21514d8981 46 * __preinit_array_end
AnnaBridge 156:ff21514d8981 47 * __init_array_start
AnnaBridge 156:ff21514d8981 48 * __init_array_end
AnnaBridge 156:ff21514d8981 49 * __fini_array_start
AnnaBridge 156:ff21514d8981 50 * __fini_array_end
AnnaBridge 156:ff21514d8981 51 * __data_end__
AnnaBridge 156:ff21514d8981 52 * __bss_start__
AnnaBridge 156:ff21514d8981 53 * __bss_end__
AnnaBridge 156:ff21514d8981 54 * __end__
AnnaBridge 156:ff21514d8981 55 * end
AnnaBridge 156:ff21514d8981 56 * __HeapLimit
AnnaBridge 156:ff21514d8981 57 * __StackLimit
AnnaBridge 156:ff21514d8981 58 * __StackTop
AnnaBridge 156:ff21514d8981 59 * __stack
AnnaBridge 156:ff21514d8981 60 * __Vectors_End
AnnaBridge 156:ff21514d8981 61 * __Vectors_Size
AnnaBridge 156:ff21514d8981 62 */
AnnaBridge 156:ff21514d8981 63 ENTRY(Reset_Handler)
AnnaBridge 156:ff21514d8981 64
AnnaBridge 156:ff21514d8981 65 SECTIONS
AnnaBridge 156:ff21514d8981 66 {
AnnaBridge 156:ff21514d8981 67 .text :
AnnaBridge 156:ff21514d8981 68 {
AnnaBridge 156:ff21514d8981 69 KEEP(*(.vectors))
AnnaBridge 156:ff21514d8981 70 __Vectors_End = .;
AnnaBridge 156:ff21514d8981 71 __Vectors_Size = __Vectors_End - __Vectors;
AnnaBridge 156:ff21514d8981 72 __end__ = .;
AnnaBridge 156:ff21514d8981 73
AnnaBridge 156:ff21514d8981 74 *(.text*)
AnnaBridge 156:ff21514d8981 75
AnnaBridge 156:ff21514d8981 76 KEEP(*(.init))
AnnaBridge 156:ff21514d8981 77 KEEP(*(.fini))
AnnaBridge 156:ff21514d8981 78
AnnaBridge 156:ff21514d8981 79 /* .ctors */
AnnaBridge 156:ff21514d8981 80 *crtbegin.o(.ctors)
AnnaBridge 156:ff21514d8981 81 *crtbegin?.o(.ctors)
AnnaBridge 156:ff21514d8981 82 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
AnnaBridge 156:ff21514d8981 83 *(SORT(.ctors.*))
AnnaBridge 156:ff21514d8981 84 *(.ctors)
AnnaBridge 156:ff21514d8981 85
AnnaBridge 156:ff21514d8981 86 /* .dtors */
AnnaBridge 156:ff21514d8981 87 *crtbegin.o(.dtors)
AnnaBridge 156:ff21514d8981 88 *crtbegin?.o(.dtors)
AnnaBridge 156:ff21514d8981 89 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
AnnaBridge 156:ff21514d8981 90 *(SORT(.dtors.*))
AnnaBridge 156:ff21514d8981 91 *(.dtors)
AnnaBridge 156:ff21514d8981 92
AnnaBridge 156:ff21514d8981 93 *(.rodata*)
AnnaBridge 156:ff21514d8981 94
AnnaBridge 156:ff21514d8981 95 KEEP(*(.eh_frame*))
AnnaBridge 156:ff21514d8981 96 } > FLASH
AnnaBridge 156:ff21514d8981 97
AnnaBridge 156:ff21514d8981 98 .ARM.extab :
AnnaBridge 156:ff21514d8981 99 {
AnnaBridge 156:ff21514d8981 100 *(.ARM.extab* .gnu.linkonce.armextab.*)
AnnaBridge 156:ff21514d8981 101 } > FLASH
AnnaBridge 156:ff21514d8981 102
AnnaBridge 156:ff21514d8981 103 __exidx_start = .;
AnnaBridge 156:ff21514d8981 104 .ARM.exidx :
AnnaBridge 156:ff21514d8981 105 {
AnnaBridge 156:ff21514d8981 106 *(.ARM.exidx* .gnu.linkonce.armexidx.*)
AnnaBridge 156:ff21514d8981 107 } > FLASH
AnnaBridge 156:ff21514d8981 108 __exidx_end = .;
AnnaBridge 156:ff21514d8981 109
AnnaBridge 156:ff21514d8981 110 /* To copy multiple ROM to RAM sections,
AnnaBridge 156:ff21514d8981 111 * uncomment .copy.table section and,
AnnaBridge 156:ff21514d8981 112 * define __STARTUP_COPY_MULTIPLE in startup_ARMCMx.S */
AnnaBridge 156:ff21514d8981 113 /*
AnnaBridge 156:ff21514d8981 114 .copy.table :
AnnaBridge 156:ff21514d8981 115 {
AnnaBridge 156:ff21514d8981 116 . = ALIGN(4);
AnnaBridge 156:ff21514d8981 117 __copy_table_start__ = .;
AnnaBridge 156:ff21514d8981 118 LONG (__etext)
AnnaBridge 156:ff21514d8981 119 LONG (__data_start__)
AnnaBridge 156:ff21514d8981 120 LONG (__data_end__ - __data_start__)
AnnaBridge 156:ff21514d8981 121 LONG (__etext2)
AnnaBridge 156:ff21514d8981 122 LONG (__data2_start__)
AnnaBridge 156:ff21514d8981 123 LONG (__data2_end__ - __data2_start__)
AnnaBridge 156:ff21514d8981 124 __copy_table_end__ = .;
AnnaBridge 156:ff21514d8981 125 } > FLASH
AnnaBridge 156:ff21514d8981 126 */
AnnaBridge 156:ff21514d8981 127
AnnaBridge 156:ff21514d8981 128 /* To clear multiple BSS sections,
AnnaBridge 156:ff21514d8981 129 * uncomment .zero.table section and,
AnnaBridge 156:ff21514d8981 130 * define __STARTUP_CLEAR_BSS_MULTIPLE in startup_ARMCMx.S */
AnnaBridge 156:ff21514d8981 131 /*
AnnaBridge 156:ff21514d8981 132 .zero.table :
AnnaBridge 156:ff21514d8981 133 {
AnnaBridge 156:ff21514d8981 134 . = ALIGN(4);
AnnaBridge 156:ff21514d8981 135 __zero_table_start__ = .;
AnnaBridge 156:ff21514d8981 136 LONG (__bss_start__)
AnnaBridge 156:ff21514d8981 137 LONG (__bss_end__ - __bss_start__)
AnnaBridge 156:ff21514d8981 138 LONG (__bss2_start__)
AnnaBridge 156:ff21514d8981 139 LONG (__bss2_end__ - __bss2_start__)
AnnaBridge 156:ff21514d8981 140 __zero_table_end__ = .;
AnnaBridge 156:ff21514d8981 141 } > FLASH
AnnaBridge 156:ff21514d8981 142 */
AnnaBridge 156:ff21514d8981 143
AnnaBridge 156:ff21514d8981 144 __etext = .;
AnnaBridge 156:ff21514d8981 145
AnnaBridge 156:ff21514d8981 146 .data : AT (__etext)
AnnaBridge 156:ff21514d8981 147 {
AnnaBridge 156:ff21514d8981 148 __data_start__ = .;
AnnaBridge 156:ff21514d8981 149 PROVIDE( __start_vector_table__ = .);
AnnaBridge 156:ff21514d8981 150 . += __vector_size;
AnnaBridge 156:ff21514d8981 151 PROVIDE( __end_vector_table__ = .);
AnnaBridge 156:ff21514d8981 152 *(vtable)
AnnaBridge 156:ff21514d8981 153 *(.data*)
AnnaBridge 156:ff21514d8981 154 . = ALIGN (4);
AnnaBridge 156:ff21514d8981 155 *(.ram)
AnnaBridge 156:ff21514d8981 156
AnnaBridge 156:ff21514d8981 157 . = ALIGN(4);
AnnaBridge 156:ff21514d8981 158 /* preinit data */
AnnaBridge 156:ff21514d8981 159 PROVIDE_HIDDEN (__preinit_array_start = .);
AnnaBridge 156:ff21514d8981 160 KEEP(*(.preinit_array))
AnnaBridge 156:ff21514d8981 161 PROVIDE_HIDDEN (__preinit_array_end = .);
AnnaBridge 156:ff21514d8981 162
AnnaBridge 156:ff21514d8981 163 . = ALIGN(4);
AnnaBridge 156:ff21514d8981 164 /* init data */
AnnaBridge 156:ff21514d8981 165 PROVIDE_HIDDEN (__init_array_start = .);
AnnaBridge 156:ff21514d8981 166 KEEP(*(SORT(.init_array.*)))
AnnaBridge 156:ff21514d8981 167 KEEP(*(.init_array))
AnnaBridge 156:ff21514d8981 168 PROVIDE_HIDDEN (__init_array_end = .);
AnnaBridge 156:ff21514d8981 169
AnnaBridge 156:ff21514d8981 170 . = ALIGN(4);
AnnaBridge 156:ff21514d8981 171 /* finit data */
AnnaBridge 156:ff21514d8981 172 PROVIDE_HIDDEN (__fini_array_start = .);
AnnaBridge 156:ff21514d8981 173 KEEP(*(SORT(.fini_array.*)))
AnnaBridge 156:ff21514d8981 174 KEEP(*(.fini_array))
AnnaBridge 156:ff21514d8981 175 PROVIDE_HIDDEN (__fini_array_end = .);
AnnaBridge 156:ff21514d8981 176
AnnaBridge 156:ff21514d8981 177 KEEP(*(.jcr*))
AnnaBridge 156:ff21514d8981 178 . = ALIGN(4);
AnnaBridge 156:ff21514d8981 179 /* All data end */
AnnaBridge 156:ff21514d8981 180 __data_end__ = .;
AnnaBridge 156:ff21514d8981 181
AnnaBridge 156:ff21514d8981 182 } > RAM
AnnaBridge 156:ff21514d8981 183
AnnaBridge 156:ff21514d8981 184 .bss :
AnnaBridge 156:ff21514d8981 185 {
AnnaBridge 156:ff21514d8981 186 . = ALIGN(4);
AnnaBridge 156:ff21514d8981 187 __bss_start__ = .;
AnnaBridge 156:ff21514d8981 188 *(.bss*)
AnnaBridge 156:ff21514d8981 189 *(COMMON)
AnnaBridge 156:ff21514d8981 190 . = ALIGN(4);
AnnaBridge 156:ff21514d8981 191 __bss_end__ = .;
AnnaBridge 156:ff21514d8981 192 } > RAM
AnnaBridge 156:ff21514d8981 193
AnnaBridge 156:ff21514d8981 194 .heap (COPY):
AnnaBridge 156:ff21514d8981 195 {
AnnaBridge 156:ff21514d8981 196 __HeapBase = .;
AnnaBridge 156:ff21514d8981 197 __end__ = .;
AnnaBridge 156:ff21514d8981 198 end = __end__;
AnnaBridge 156:ff21514d8981 199 _end = __end__;
AnnaBridge 156:ff21514d8981 200 KEEP(*(.heap*))
AnnaBridge 156:ff21514d8981 201 __HeapLimit = .;
AnnaBridge 156:ff21514d8981 202 } > RAM
AnnaBridge 156:ff21514d8981 203
AnnaBridge 156:ff21514d8981 204 /* .stack_dummy section doesn't contains any symbols. It is only
AnnaBridge 156:ff21514d8981 205 * used for linker to calculate size of stack sections, and assign
AnnaBridge 156:ff21514d8981 206 * values to stack symbols later */
AnnaBridge 156:ff21514d8981 207 .stack_dummy (COPY):
AnnaBridge 156:ff21514d8981 208 {
AnnaBridge 156:ff21514d8981 209 KEEP(*(.stack*))
AnnaBridge 156:ff21514d8981 210 } > RAM
AnnaBridge 156:ff21514d8981 211
AnnaBridge 156:ff21514d8981 212 /* Set stack top to end of RAM, and stack limit move down by
AnnaBridge 156:ff21514d8981 213 * size of stack_dummy section */
AnnaBridge 156:ff21514d8981 214 __StackTop = ORIGIN(RAM) + LENGTH(RAM);
AnnaBridge 156:ff21514d8981 215 __StackLimit = __StackTop - SIZEOF(.stack_dummy);
AnnaBridge 156:ff21514d8981 216 PROVIDE(__stack = __StackTop);
AnnaBridge 156:ff21514d8981 217
AnnaBridge 156:ff21514d8981 218 /* Check if data + heap + stack exceeds RAM limit */
AnnaBridge 156:ff21514d8981 219 ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
AnnaBridge 156:ff21514d8981 220
AnnaBridge 156:ff21514d8981 221 /* Check if FLASH usage exceeds FLASH size */
AnnaBridge 156:ff21514d8981 222 ASSERT(ORIGIN(FLASH) + LENGTH(FLASH) >= (__etext + SIZEOF(.data)), "FLASH memory overflowed !")
AnnaBridge 156:ff21514d8981 223 }