297 lines
6.5 KiB
Plaintext
297 lines
6.5 KiB
Plaintext
/*
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* Copyright (c) 2014-2015 Wind River Systems, Inc.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @brief Common parts of the linker scripts for the ARCv2/EM targets.
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*/
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#define _LINKER
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#define _ASMLANGUAGE
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#include <autoconf.h>
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#include <linker/sections.h>
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#if defined(CONFIG_UART_NSIM)
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EXTERN(_VectorTable)
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#endif
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#include <linker/linker-defs.h>
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#include <linker/linker-tool.h>
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/* physical address of RAM */
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#ifdef CONFIG_HARVARD
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#define ROMABLE_REGION ICCM
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#define RAMABLE_REGION DCCM
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#else
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#if defined(CONFIG_XIP) && (FLASH_SIZE != 0)
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#define ROMABLE_REGION FLASH
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#define RAMABLE_REGION SRAM
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#else
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#define ROMABLE_REGION SRAM
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#define RAMABLE_REGION SRAM
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#endif
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#endif
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#ifdef CONFIG_ARC_MPU_ENABLE
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#if CONFIG_ARC_MPU_VER == 2
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#define MPU_MIN_SIZE 2048
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#elif CONFIG_ARC_MPU_VER == 3
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#define MPU_MIN_SIZE 32
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#endif
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#define MPU_MIN_SIZE_ALIGN . = ALIGN(MPU_MIN_SIZE );
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#else
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#define MPU_MIN_SIZE_ALIGN
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#endif
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#if defined(CONFIG_XIP)
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#define _DATA_IN_ROM __data_rom_start
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#else
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#define _DATA_IN_ROM
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#endif
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OUTPUT_ARCH(arc)
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ENTRY(CONFIG_KERNEL_ENTRY)
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MEMORY {
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#ifdef FLASH_START
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FLASH (rx) : ORIGIN = FLASH_START, LENGTH = FLASH_SIZE*1k
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#endif
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#ifdef ICCM_START
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ICCM (rwx) : ORIGIN = ICCM_START, LENGTH = ICCM_SIZE*1k
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#endif
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#ifdef SRAM_START
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SRAM (rwx) : ORIGIN = SRAM_START, LENGTH = SRAM_SIZE*1k
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#endif
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#ifdef DCCM_START
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DCCM (rw) : ORIGIN = DCCM_START, LENGTH = DCCM_SIZE*1k
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#endif
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/* Used by and documented in include/linker/intlist.ld */
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IDT_LIST (wx) : ORIGIN = 0xFFFFF7FF, LENGTH = 2K
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}
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SECTIONS {
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#include <linker/rel-sections.ld>
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GROUP_START(ROMABLE_REGION)
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SECTION_PROLOGUE(_TEXT_SECTION_NAME,,ALIGN(1024)) {
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_image_rom_start = .;
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_image_text_start = .;
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/* when !XIP, .text is in RAM, and vector table must be at its very start */
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KEEP(*(.exc_vector_table))
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KEEP(*(".exc_vector_table.*"))
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KEEP(*(IRQ_VECTOR_TABLE))
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*(.text)
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*(".text.*")
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*(.gnu.linkonce.t.*)
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#include <linker/kobject-text.ld>
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} GROUP_LINK_IN(ROMABLE_REGION)
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_image_text_end = .;
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_image_rodata_start = .;
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#include <linker/common-rom.ld>
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SECTION_PROLOGUE(_RODATA_SECTION_NAME,,) {
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KEEP(*(.openocd_dbg))
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KEEP(*(".openocd_dbg.*"))
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*(.rodata)
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*(".rodata.*")
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*(.gnu.linkonce.r.*)
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#ifdef CONFIG_SOC_RODATA_LD
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#include <soc-rodata.ld>
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#endif
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#ifdef CONFIG_CUSTOM_RODATA_LD
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/* Located in project source directory */
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#include <custom-rodata.ld>
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#endif
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#include <linker/kobject-rom.ld>
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} GROUP_LINK_IN(ROMABLE_REGION)
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_image_rodata_end = .;
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MPU_MIN_SIZE_ALIGN
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_image_rom_end = .;
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_image_rom_size = _image_rom_end - _image_rom_start;
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GROUP_END(ROMABLE_REGION)
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GROUP_START(RAMABLE_REGION)
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#include <app_data_alignment.ld>
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#if defined(CONFIG_APP_SHARED_MEM)
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#if defined(CONFIG_MPU_REQUIRES_POWER_OF_TWO_ALIGNMENT)
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#define APP_SHARED_ALIGN MPU_MIN_SIZE_ALIGN
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#include <app_smem.ld>
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#else
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SECTION_PROLOGUE(_APP_SMEM_SECTION_NAME, (OPTIONAL),)
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{
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MPU_MIN_SIZE_ALIGN
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_image_ram_start = .;
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_app_smem_start = .;
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APP_SMEM_SECTION()
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MPU_MIN_SIZE_ALIGN
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_app_smem_end = .;
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} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
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#endif /* CONFIG_MPU_REQUIRES_POWER_OF_TWO_ALIGNMENT */
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_app_smem_size = _app_smem_end - _app_smem_start;
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_app_smem_rom_start = LOADADDR(_APP_SMEM_SECTION_NAME);
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#endif /* CONFIG_APP_SHARED_MEM */
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#ifdef CONFIG_APPLICATION_MEMORY
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SECTION_DATA_PROLOGUE(_APP_DATA_SECTION_NAME, (OPTIONAL),)
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{
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MPU_MIN_SIZE_ALIGN
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#include <app_data_alignment.ld>
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__app_ram_start = .;
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__app_data_ram_start = .;
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_image_ram_start = .;
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APP_INPUT_SECTION(.data)
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APP_INPUT_SECTION(".data.*")
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__app_data_ram_end = .;
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} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
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__app_data_rom_start = LOADADDR(_APP_DATA_SECTION_NAME);
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SECTION_PROLOGUE(_APP_BSS_SECTION_NAME, (NOLOAD OPTIONAL),)
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{
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__app_bss_start = .;
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APP_INPUT_SECTION(.bss)
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APP_INPUT_SECTION(".bss.*")
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APP_INPUT_SECTION(COMMON)
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__app_bss_end = .;
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} GROUP_DATA_LINK_IN(RAMABLE_REGION, RAMABLE_REGION)
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__app_bss_num_words = (__app_bss_end - __app_bss_start) >> 2;
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SECTION_PROLOGUE(_APP_NOINIT_SECTION_NAME, (NOLOAD OPTIONAL),)
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{
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APP_INPUT_SECTION(.noinit)
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APP_INPUT_SECTION(".noinit.*")
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} GROUP_DATA_LINK_IN(RAMABLE_REGION, RAMABLE_REGION)
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__app_last_address_used = .;
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/* Pad out application ram area to make MPU friendly */
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SECTION_PROLOGUE(app_pad, (NOLOAD OPTIONAL),)
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{
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. = ALIGN(_app_data_align);
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MPU_MIN_SIZE_ALIGN
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} GROUP_DATA_LINK_IN(RAMABLE_REGION, RAMABLE_REGION)
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__app_ram_end = .;
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__app_ram_size = __app_ram_end - __app_ram_start;
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#endif /* CONFIG_APPLICATION_MEMORY */
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SECTION_DATA_PROLOGUE(_BSS_SECTION_NAME,(NOLOAD),) {
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MPU_MIN_SIZE_ALIGN
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/*
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* For performance, BSS section is assumed to be 4 byte aligned and
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* a multiple of 4 bytes
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*/
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. = ALIGN(4);
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__bss_start = .;
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#ifndef CONFIG_APPLICATION_MEMORY
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_image_ram_start = .;
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#endif
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__kernel_ram_start = .;
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KERNEL_INPUT_SECTION(.bss)
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KERNEL_INPUT_SECTION(".bss.*")
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KERNEL_INPUT_SECTION(COMMON)
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*(".kernel_bss.*")
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/*
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* BSP clears this memory in words only and doesn't clear any
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* potential left over bytes.
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*/
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__bss_end = ALIGN(4);
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} GROUP_DATA_LINK_IN(RAMABLE_REGION, RAMABLE_REGION)
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SECTION_PROLOGUE(_NOINIT_SECTION_NAME,(NOLOAD),) {
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/*
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* This section is used for non-initialized objects that
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* will not be cleared during the boot process.
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*/
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KERNEL_INPUT_SECTION(.noinit)
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KERNEL_INPUT_SECTION(".noinit.*")
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*(".kernel_noinit.*")
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#ifdef CONFIG_SOC_NOINIT_LD
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#include <soc-noinit.ld>
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#endif
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} GROUP_LINK_IN(RAMABLE_REGION)
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SECTION_DATA_PROLOGUE(_DATA_SECTION_NAME,,) {
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/* when XIP, .text is in ROM, but vector table must be at start of .data */
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__data_ram_start = .;
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KERNEL_INPUT_SECTION(.data)
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KERNEL_INPUT_SECTION(".data.*")
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*(".kernel.*")
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#ifdef CONFIG_SOC_RWDATA_LD
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#include <soc-rwdata.ld>
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#endif
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#ifdef CONFIG_CUSTOM_RWDATA_LD
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/* Located in project source directory */
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#include <custom-rwdata.ld>
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#endif
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} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
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__data_rom_start = LOADADDR(_DATA_SECTION_NAME);
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#include <linker/common-ram.ld>
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#include <linker/kobject.ld>
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__data_ram_end = .;
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MPU_MIN_SIZE_ALIGN
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/* Define linker symbols */
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_image_ram_end = .;
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_end = .; /* end of image */
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__kernel_ram_end = .;
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__kernel_ram_size = __kernel_ram_end - __kernel_ram_start;
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GROUP_END(RAMABLE_REGION)
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#ifdef CONFIG_CUSTOM_SECTIONS_LD
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/* Located in project source directory */
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#include <custom-sections.ld>
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#endif
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#ifdef CONFIG_GEN_ISR_TABLES
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#include <linker/intlist.ld>
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#endif
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#include <linker/debug-sections.ld>
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SECTION_PROLOGUE(.ARC.attributes, 0,)
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{
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KEEP(*(.ARC.attributes))
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KEEP(*(.gnu.attributes))
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}
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}
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