305 lines
6.9 KiB
ArmAsm
305 lines
6.9 KiB
ArmAsm
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/***************************************************************************
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*
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* Copyright 2015-2019 BES.
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* All rights reserved. All unpublished rights reserved.
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*
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* No part of this work may be used or reproduced in any form or by any
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* means, or stored in a database or retrieval system, without prior written
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* permission of BES.
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*
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* Use of this work is governed by a license granted by BES.
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* This work contains confidential and proprietary information of
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* BES. which is protected by copyright, trade secret,
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* trademark and other intellectual property rights.
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*
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****************************************************************************/
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#include "plat_addr_map.h"
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#define HEAP_SECTION_SIZE 0x40
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#define STACK_SECTION_SIZE 0x1000
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#define CP_STACK_SECTION_SIZE 0x1000
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/* Linker script to configure memory regions. */
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MEMORY
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{
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ROM (rx) : ORIGIN = ROM_BASE, LENGTH = ROM_SIZE /* see plat_addr_map.h and common.mk */
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RAM (rwx) : ORIGIN = RAM_BASE, LENGTH = RAM_SIZE
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RAMX (rwx) : ORIGIN = RAMX_BASE, LENGTH = RAM_SIZE
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#if defined(CHIP_HAS_CP) && (RAMCP_SIZE > 0)
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RAMCP (rwx) : ORIGIN = RAMCP_BASE, LENGTH = RAMCP_SIZE
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RAMCPX (rwx) : ORIGIN = RAMCPX_BASE, LENGTH = RAMCPX_SIZE
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#endif
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}
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/* Library configurations */
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GROUP(libgcc.a)
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/* Linker script to place sections and symbol values. Should be used together
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* with other linker script that defines memory regions ROM and RAM.
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* It references following symbols, which must be defined in code:
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* Reset_Handler : Entry of reset handler
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*
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* It defines following symbols, which code can use without definition:
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* __export_fn_rom
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* __exidx_start
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* __exidx_end
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* __rom_etext
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* __rom_data_start__
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* __rom_data_end__
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* __rom_bss_start__
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* __rom_bss_end__
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* __rom_HeapLimit
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* __rom_StackLimit
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* __rom_StackTop
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* __rom_stack
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* __Vectors_End
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* __Vectors_Size
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* __free_rom_ram
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* __rom_end
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* __free_rom
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* __audio_const_rom_start
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* __audio_const_rom_end
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* __audio_const_rom_size
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*/
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ENTRY(Reset_Handler)
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SECTIONS
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{
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.rom_text (ORIGIN(ROM)) :
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{
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KEEP(*(.vectors))
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*(.text*)
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#ifndef NOSTD
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KEEP(*(.init))
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KEEP(*(.fini))
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/* .ctors */
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*crtbegin.o(.ctors)
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*crtbegin?.o(.ctors)
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*(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
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*(SORT(.ctors.*))
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*(.ctors)
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/* .dtors */
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*crtbegin.o(.dtors)
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*crtbegin?.o(.dtors)
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*(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
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*(SORT(.dtors.*))
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*(.dtors)
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#endif
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. = ALIGN(4);
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*(.rodata*)
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#ifdef CHIP_HAS_AUDIO_CONST_ROM
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__audio_const_rom_start = .;
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KEEP(*audio_const_rom.o(.audio_const_index))
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KEEP(*audio_const_rom.o(.rodata*))
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__audio_const_rom_end = .;
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__audio_const_rom_size = __audio_const_rom_end - __audio_const_rom_start;
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#endif
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#ifndef NOSTD
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KEEP(*(.eh_frame*))
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#endif
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*(.note.gnu.build-id)
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. = ALIGN(4);
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} > ROM
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.rom_got_info (.) :
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{
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__rom_got_info_start = .;
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__rom_got_start = .;
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*(.got)
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. = ALIGN(4);
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__rom_got_end = .;
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__rom_got_plt_start = .;
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*(.got.plt)
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. = ALIGN(4);
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__rom_igot_plt_start = .;
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*(.igot.plt)
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. = ALIGN(4);
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__rom_dynamic_start = .;
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*(.dynamic)
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. = ALIGN(4);
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__rom_got_info_end = .;
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} > ROM
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.ARM.extab (.) :
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{
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*(.ARM.extab* .gnu.linkonce.armextab.*)
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} > ROM
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__exidx_start = .;
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.ARM.exidx (.) :
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{
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*(.ARM.exidx* .gnu.linkonce.armexidx.*)
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} > ROM
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__exidx_end = .;
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. = ALIGN(4);
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__rom_text0_end = .;
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.vector_table (ORIGIN(RAM)) (NOLOAD) :
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{
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KEEP(*(.vector_table))
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. = VECTOR_SECTION_SIZE;
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. = ALIGN(4);
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} > RAM
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.reboot_param (.) (NOLOAD) :
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{
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KEEP(*(.reboot_param))
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. = REBOOT_PARAM_SECTION_SIZE;
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. = ALIGN(4);
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} > RAM
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.rom_ramx (RAM_TO_RAMX(.)) : AT (__rom_text0_end)
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{
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__rom_ramx_start = .;
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*(.rom_ramx)
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. = ALIGN(4);
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__rom_ramx_end = .;
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} > RAMX
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__rom_etext = __rom_text0_end + SIZEOF(.rom_ramx);
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.rom_data (RAMX_TO_RAM(.)) : AT (__rom_etext)
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{
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__rom_data_start__ = .;
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*(.data*)
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. = ALIGN(4);
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#ifndef NOSTD
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*(vtable)
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. = ALIGN(4);
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/* preinit data */
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PROVIDE_HIDDEN (__preinit_array_start = .);
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KEEP(*(.preinit_array))
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PROVIDE_HIDDEN (__preinit_array_end = .);
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. = ALIGN(4);
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/* init data */
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PROVIDE_HIDDEN (__init_array_start = .);
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KEEP(*(SORT(.init_array.*)))
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KEEP(*(.init_array))
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PROVIDE_HIDDEN (__init_array_end = .);
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. = ALIGN(4);
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/* finit data */
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PROVIDE_HIDDEN (__fini_array_start = .);
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KEEP(*(SORT(.fini_array.*)))
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KEEP(*(.fini_array))
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PROVIDE_HIDDEN (__fini_array_end = .);
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KEEP(*(.jcr*))
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. = ALIGN(4);
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#endif
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/* All data end */
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__rom_data_end__ = .;
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} > RAM
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.rom_bss (.) (NOLOAD) : AT (ADDR(.rom_bss))
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{
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. = ALIGN(4);
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__rom_bss_start__ = .;
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*(.bss*)
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*(COMMON)
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. = ALIGN(4);
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__rom_bss_end__ = .;
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#ifndef NOSTD
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__bss_start__ = __rom_bss_start__;
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__bss_end__ = __rom_bss_end__;
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#endif
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} > RAM
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.rom_heap (.) (NOLOAD) :
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{
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. = ALIGN(8);
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__rom_HeapBase = .;
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#ifndef NOSTD
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__end__ = .;
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end = __end__;
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. += HEAP_SECTION_SIZE;
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#endif
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. = ALIGN(8);
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__rom_HeapLimit = .;
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} > RAM
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.scratch_buf (.) (NOLOAD) :
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{
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. = ALIGN(4);
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*(.scratch_buf)
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. = ALIGN(4);
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} > RAM
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/* .stack_dummy section doesn't contains any symbols. It is only
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* used for linker to calculate size of stack sections, and assign
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* values to stack symbols later */
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.rom_stack_dummy (.) (COPY) :
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{
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. = STACK_SECTION_SIZE;
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. = ALIGN(8);
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} > RAM
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/* Set stack top to end of RAM, and stack limit move down by
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* size of stack_dummy section */
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__rom_StackTop = ORIGIN(RAM) + LENGTH(RAM);
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__rom_StackLimit = __rom_StackTop - SIZEOF(.rom_stack_dummy);
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PROVIDE(__rom_stack = __rom_StackTop);
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#ifndef NOSTD
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__StackTop = __rom_StackTop;
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PROVIDE(__stack = __rom_StackTop);
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#endif
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/* Check if data + heap + stack exceeds RAM limit */
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ASSERT(__rom_StackLimit >= __rom_HeapLimit, "region RAM overflowed with stack")
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__free_rom_ram = __rom_StackLimit - __rom_HeapLimit;
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__rom_end = __rom_etext + SIZEOF(.rom_data);
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#if defined(CHIP_HAS_CP) && (RAMCP_SIZE > 0)
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.cp_ramx_last_dummy (NOLOAD) :
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{
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__cp_ramx_last_dummy_start = .;
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} > RAMCPX
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.cp_ram_last_dummy (NOLOAD) :
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{
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. = ALIGN(8);
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__cp_ram_last_dummy_start = .;
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} > RAMCP
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__cp_stack_top = ORIGIN(RAMCP) + LENGTH(RAMCP);
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__cp_stack_limit = __cp_stack_top - CP_STACK_SECTION_SIZE;
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__free_ramcpx = ORIGIN(RAMCPX) + LENGTH(RAMCPX) - __cp_ramx_last_dummy_start;
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ASSERT(__cp_stack_limit >= __cp_ram_last_dummy_start, "region RAMCP overflowed with stack")
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__free_ramcp = __cp_stack_limit - __cp_ram_last_dummy_start;
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#endif
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.rom_export_fn (ORIGIN(ROM) + LENGTH(ROM) - ROM_BUILD_INFO_SECTION_SIZE - ROM_EXPORT_FN_SECTION_SIZE) :
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{
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__export_fn_rom = .;
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KEEP(*(.export_fn))
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. = ROM_EXPORT_FN_SECTION_SIZE;
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} > ROM = 0x00000000
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.rom_build_info (ORIGIN(ROM) + LENGTH(ROM) - ROM_BUILD_INFO_SECTION_SIZE) :
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{
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KEEP(*(.build_info))
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. = ROM_BUILD_INFO_SECTION_SIZE;
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} > ROM = 0x00000000
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ASSERT(ADDR(.rom_export_fn) >= __rom_end, "region ROM overflowed with .rom_export_fn")
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__free_rom = ADDR(.rom_export_fn) - __rom_end;
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}
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