pinebuds/scripts/link/programmer_inflash.lds.S

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2022-08-15 04:20:27 -05:00
/***************************************************************************
*
* Copyright 2015-2019 BES.
* All rights reserved. All unpublished rights reserved.
*
* No part of this work may be used or reproduced in any form or by any
* means, or stored in a database or retrieval system, without prior written
* permission of BES.
*
* Use of this work is governed by a license granted by BES.
* This work contains confidential and proprietary information of
* BES. which is protected by copyright, trade secret,
* trademark and other intellectual property rights.
*
****************************************************************************/
#include "plat_addr_map.h"
#define HEAP_SECTION_SIZE 0x40
#define STACK_SECTION_SIZE 0x1000
#define CODE_MSG_OVERHEAD 8
/* TODO: Add FLASH_REGION_OFFSET if there are multiple levels of boot loaders */
#if !defined(OTA_BOOT_SIZE) && defined(OTA_CODE_OFFSET)
#define FLASH_REGION_BASE (FLASH_BASE + OTA_CODE_OFFSET)
#else
#define FLASH_REGION_BASE (FLASH_BASE)
#endif
#ifndef FLASH_REGION_SIZE
#define FLASH_REGION_SIZE (FLASH_SIZE - (FLASH_REGION_BASE - FLASH_BASE))
#endif
#define FLASH_NC_REGION_BASE FLASH_C_TO_NC(FLASH_REGION_BASE)
#define FLASHX_REGION_BASE FLASH_TO_FLASHX(FLASH_REGION_BASE)
/* Linker script to configure memory regions. */
MEMORY
{
ROM (rx) : ORIGIN = ROM_BASE, LENGTH = ROM_SIZE /* see plat_addr_map.h and common.mk */
FLASH (r) : ORIGIN = FLASH_REGION_BASE, LENGTH = FLASH_REGION_SIZE
FLASH_NC (r) : ORIGIN = FLASH_NC_REGION_BASE, LENGTH = FLASH_REGION_SIZE
FLASHX (rx) : ORIGIN = FLASHX_REGION_BASE, LENGTH = FLASH_REGION_SIZE
RAM (rwx) : ORIGIN = RAM_BASE, LENGTH = RAM_SIZE
RAMX (rx) : ORIGIN = RAMX_BASE, LENGTH = RAM_SIZE
}
/* Library configurations */
GROUP(libgcc.a)
/* Linker script to place sections and symbol values. Should be used together
* with other linker script that defines memory regions ROM 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:
* __export_fn_rom
* __exec_struct_start
* __cust_cmd_init_tbl_start
* __cust_cmd_init_tbl_end
* __cust_cmd_hldr_tbl_start
* __cust_cmd_hldr_tbl_end
* __exidx_start
* __exidx_end
* __etext
* __data_start__
* __data_end__
* __bss_start__
* __bss_end__
* __end__
* end
* __HeapLimit
* __StackLimit
* __StackTop
* __stack
* __free_ram
*/
ENTRY(Boot_Loader)
SECTIONS
{
__export_fn_rom = (ORIGIN(ROM) + LENGTH(ROM) - ROM_BUILD_INFO_SECTION_SIZE - ROM_EXPORT_FN_SECTION_SIZE);
.boot_struct (ORIGIN(FLASH)) :
{
__flash_start = .;
KEEP(*(.boot_struct))
. = ALIGN(4);
} > FLASH
. = FLASH_TO_FLASHX(.);
.boot_text_flash (.) : AT (FLASHX_TO_FLASH(ADDR(.boot_text_flash)))
{
*(.boot_loader)
*(.boot_text_flash*)
*(.boot_rodata_flash*)
*:main.o(.text* .rodata*)
*:hal_bootmode.o(.text* .rodata*)
*:hal_cmu_*.o(.text.hal_cmu_get_bootmode_addr .rodata.hal_cmu_get_bootmode_addr)
*:cmsis_nvic.o(.text.NVIC_DisableAllIRQs .rodata.NVIC_DisableAllIRQs)
. = ALIGN(4);
} > FLASHX
.ota_boot_info (ALIGN(4096)) :
{
*(.ota_boot_info)
. = (0x1000);
} > FLASHX
.ota_boot_rev (ALIGN(4096)) :
{
*(.ota_boot_rev)
. = (0x1000);
} > FLASHX
. = FLASHX_TO_FLASH(.);
.got_info (.) :
{
__got_info_start = .;
__got_start = .;
*(.got)
. = ALIGN(4);
__got_end = .;
__got_plt_start = .;
*(.got.plt)
. = ALIGN(4);
__igot_plt_start = .;
*(.igot.plt)
. = ALIGN(4);
__dynamic_start = .;
*(.dynamic)
. = ALIGN(4);
__got_info_end = .;
} > FLASH
.vector_table (ORIGIN(RAM)) (NOLOAD) :
{
KEEP(*(.vector_table))
. = VECTOR_SECTION_SIZE;
. = ALIGN(4);
} > RAM
.reboot_param (.) (NOLOAD) :
{
KEEP(*(.reboot_param))
. = REBOOT_PARAM_SECTION_SIZE;
. = ALIGN(4);
} > RAM
.burn_buffer (.) (NOLOAD) :
{
/* The size of .burn_buffer should be greater than __rom_HeapLimit. In most cases 8K is enough. */
KEEP(*(.burn_buffer))
. = ALIGN(4);
} > RAM
/*
.code_dummy (.) (NOLOAD) :
{
. = CODE_MSG_OVERHEAD;
. = ALIGN(4);
} > RAM
*/
__boot_sram_start__ = .;
. = RAM_TO_RAMX(.);
__boot_sram_start_flash__ = LOADADDR(.got_info) + SIZEOF(.got_info);
.text (.) : AT (__boot_sram_start_flash__)
{
*(.text*)
. = ALIGN(4);
} > RAMX
.ARM.extab (.) : AT (LOADADDR(.text) + SIZEOF(.text))
{
*(.ARM.extab* .gnu.linkonce.armextab.*)
} > RAMX
__exidx_start = .;
/* .ARM.exidx contains R_ARM_PREL31 (+-0x40000000) offset to functions, which means
* the session location cannot be too far away from the function addresses */
.ARM.exidx (.) : AT (LOADADDR(.ARM.extab) + SIZEOF(.ARM.extab))
{
*(.ARM.exidx* .gnu.linkonce.armexidx.*)
} > RAMX
__exidx_end = .;
. = RAMX_TO_RAM(.);
.rodata (.) : AT (LOADADDR(.ARM.exidx) + SIZEOF(.ARM.exidx))
{
*(.rodata*)
*(.boot_rodata_sram*)
. = ALIGN(4);
__cust_cmd_init_tbl_start = .;
KEEP(*(.cust_cmd_init_tbl))
__cust_cmd_init_tbl_end = .;
. = ALIGN(4);
__cust_cmd_hldr_tbl_start = .;
KEEP(*(.cust_cmd_hldr_tbl))
__cust_cmd_hldr_tbl_end = .;
*(.note.gnu.build-id)
. = ALIGN(4);
} > RAM
__etext = .;
.data (.) : AT (LOADADDR(.rodata) + SIZEOF(.rodata))
{
__data_start__ = .;
*(.data*)
. = ALIGN(4);
/* All data end */
__data_end__ = .;
} > RAM
__boot_sram_end__ = .;
__boot_sram_end_flash__ = LOADADDR(.data) + SIZEOF(.data);
.build_info (LOADADDR(.data) + SIZEOF(.data)) : AT (LOADADDR(.data) + SIZEOF(.data))
{
KEEP(*(.build_info))
. = ALIGN(4);
} > FLASH = 0x00000000
/* The following section be the last loaded section */
.code_start_addr (.) :
{
__app_entry_address__ = .;
LONG(APP_ENTRY_ADDRESS);
__download_uart_bandrate__ = .;
LONG(DOWNLOAD_UART_BANDRATE);
LONG(BUILD_INFO_MAGIC);
LONG(ABSOLUTE(__flash_start));
} > FLASH
__flash_end = .;
.bss (ADDR(.data)+SIZEOF(.data)) (NOLOAD) :
{
. = ALIGN(4);
__bss_start__ = .;
*(.bss*)
*(COMMON)
. = ALIGN(4);
__bss_end__ = .;
} > RAM
.heap (.) (NOLOAD) :
{
. = ALIGN(8);
__HeapBase = .;
__end__ = .;
end = __end__;
. += HEAP_SECTION_SIZE;
. = ALIGN(8);
__HeapLimit = .;
} > RAM
/* .stack_dummy section doesn't contains any symbols. It is only
* used for linker to calculate size of stack sections, and assign
* values to stack symbols later */
.stack_dummy (.) (COPY) :
{
. = STACK_SECTION_SIZE;
. = ALIGN(8);
} > 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 - SIZEOF(.stack_dummy);
PROVIDE(__stack = __StackTop);
/* Check if data + heap + stack exceeds RAM limit */
ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
__free_ram = __StackLimit - __HeapLimit;
__boot_bss_sram_start__ = .;
__boot_bss_sram_end__ = .;
__sram_text_data_start_flash__ = .;
__sram_text_data_end_flash__ = .;
__sram_text_data_start__ = .;
__sram_bss_start__ = .;
__sram_bss_end__ = .;
__fast_sram_text_data_start_flash__ = .;
__fast_sram_text_data_end_flash__ = .;
__fast_sram_text_data_start__ = .;
}