ARC: add linker script template for metware toolchain

Add linker script template for MWDT toolchain (linker-mwdt.ld)
Move linker.ld to linker-gnu.ld (without changes)

The "linker.ld" is wraper now.

Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
This commit is contained in:
Wayne Ren 2020-07-03 17:05:46 +08:00 committed by Maureen Helm
commit cc897a5198
3 changed files with 474 additions and 213 deletions

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/*
* Copyright (c) 2014-2015 Wind River Systems, Inc.
*
* SPDX-License-Identifier: Apache-2.0
*/
/**
* @brief Common parts of the linker scripts for the ARCv2/EM targets.
*/
#include <linker/sections.h>
#include <linker/linker-defs.h>
#include <linker/linker-tool.h>
/* physical address of RAM */
#ifdef CONFIG_HARVARD
#define ROMABLE_REGION ICCM
#define RAMABLE_REGION DCCM
#else
#if defined(CONFIG_XIP) && (FLASH_SIZE != 0)
#define ROMABLE_REGION FLASH
#define RAMABLE_REGION SRAM
#else
#define ROMABLE_REGION SRAM
#define RAMABLE_REGION SRAM
#endif
#endif
#ifdef CONFIG_ARC_MPU_ENABLE
#if CONFIG_ARC_MPU_VER == 2
#define MPU_MIN_SIZE 2048
#elif CONFIG_ARC_MPU_VER == 3
#define MPU_MIN_SIZE 32
#endif
#define MPU_MIN_SIZE_ALIGN . = ALIGN(MPU_MIN_SIZE );
#if defined(CONFIG_MPU_REQUIRES_POWER_OF_TWO_ALIGNMENT)
#define MPU_ALIGN(region_size) \
. = ALIGN(MPU_MIN_SIZE); \
. = ALIGN( 1 << LOG2CEIL(region_size))
#else
#define MPU_ALIGN(region_size) \
. = ALIGN(MPU_MIN_SIZE)
#endif
#else
#define MPU_MIN_SIZE_ALIGN
#define MPU_ALIGN(region_size) . = ALIGN(4)
#endif
#if defined(CONFIG_XIP)
#define _DATA_IN_ROM __data_rom_start
#else
#define _DATA_IN_ROM
#endif
OUTPUT_ARCH(arc)
ENTRY(CONFIG_KERNEL_ENTRY)
MEMORY {
#ifdef FLASH_START
FLASH (rx) : ORIGIN = FLASH_START, LENGTH = FLASH_SIZE
#endif
#ifdef ICCM_START
ICCM (rwx) : ORIGIN = ICCM_START, LENGTH = ICCM_SIZE
#endif
#ifdef SRAM_START
SRAM (rwx) : ORIGIN = SRAM_START, LENGTH = SRAM_SIZE
#endif
#ifdef DCCM_START
DCCM (rw) : ORIGIN = DCCM_START, LENGTH = DCCM_SIZE
#endif
/* Used by and documented in include/linker/intlist.ld */
IDT_LIST (wx) : ORIGIN = 0xFFFFF7FF, LENGTH = 2K
}
SECTIONS {
#include <linker/rel-sections.ld>
GROUP_START(ROMABLE_REGION)
SECTION_PROLOGUE(_TEXT_SECTION_NAME,,ALIGN(1024)) {
_image_rom_start = .;
_image_text_start = .;
/* Located in generated directory. This file is populated by calling
* zephyr_linker_sources(ROM_START ...). This typically contains the vector
* table and debug information.
*/
#include <snippets-rom-start.ld>
*(.text)
*(".text.*")
*(.gnu.linkonce.t.*)
#include <linker/kobject-text.ld>
} GROUP_LINK_IN(ROMABLE_REGION)
_image_text_end = .;
_image_rodata_start = .;
#include <linker/common-rom.ld>
SECTION_PROLOGUE(_RODATA_SECTION_NAME,,) {
KEEP(*(.openocd_dbg))
KEEP(*(".openocd_dbg.*"))
*(.rodata)
*(".rodata.*")
*(.gnu.linkonce.r.*)
/* Located in generated directory. This file is populated by the
* zephyr_linker_sources() Cmake function.
*/
#include <snippets-rodata.ld>
#include <linker/kobject-rom.ld>
} GROUP_LINK_IN(ROMABLE_REGION)
#include <linker/cplusplus-rom.ld>
_image_rodata_end = .;
MPU_ALIGN(_image_rodata_end - _image_rom_start);
_image_rom_end = .;
_image_rom_size = _image_rom_end - _image_rom_start;
GROUP_END(ROMABLE_REGION)
GROUP_START(RAMABLE_REGION)
#include <app_data_alignment.ld>
/* Located in generated directory. This file is populated by the
* zephyr_linker_sources() Cmake function.
*/
#include <snippets-ram-sections.ld>
#if defined(CONFIG_USERSPACE)
#define APP_SHARED_ALIGN MPU_MIN_SIZE_ALIGN
#define SMEM_PARTITION_ALIGN MPU_ALIGN
#include <app_smem.ld>
_image_ram_start = _app_smem_start;
_app_smem_size = _app_smem_end - _app_smem_start;
_app_smem_rom_start = LOADADDR(_APP_SMEM_SECTION_NAME);
#endif /* CONFIG_USERSPACE */
SECTION_DATA_PROLOGUE(_BSS_SECTION_NAME,(NOLOAD),) {
MPU_MIN_SIZE_ALIGN
/*
* For performance, BSS section is assumed to be 4 byte aligned and
* a multiple of 4 bytes
*/
. = ALIGN(4);
__bss_start = .;
_image_ram_start = .;
__kernel_ram_start = .;
*(.bss)
*(".bss.*")
*(COMMON)
*(".kernel_bss.*")
/*
* BSP clears this memory in words only and doesn't clear any
* potential left over bytes.
*/
__bss_end = ALIGN(4);
} GROUP_DATA_LINK_IN(RAMABLE_REGION, RAMABLE_REGION)
#include <linker/common-noinit.ld>
SECTION_DATA_PROLOGUE(_DATA_SECTION_NAME,,) {
/* when XIP, .text is in ROM, but vector table must be at start of .data */
__data_ram_start = .;
*(.data)
*(".data.*")
*(".kernel.*")
/* Located in generated directory. This file is populated by the
* zephyr_linker_sources() Cmake function.
*/
#include <snippets-rwdata.ld>
} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
__data_rom_start = LOADADDR(_DATA_SECTION_NAME);
#include <linker/common-ram.ld>
#include <linker/kobject.ld>
#include <linker/cplusplus-ram.ld>
__data_ram_end = .;
MPU_MIN_SIZE_ALIGN
/* Define linker symbols */
_image_ram_end = .;
_end = .; /* end of image */
__kernel_ram_end = .;
__kernel_ram_size = __kernel_ram_end - __kernel_ram_start;
GROUP_END(RAMABLE_REGION)
/* Located in generated directory. This file is populated by the
* zephyr_linker_sources() Cmake function.
*/
#include <snippets-sections.ld>
#include <linker/debug-sections.ld>
SECTION_PROLOGUE(.ARC.attributes, 0,)
{
KEEP(*(.ARC.attributes))
KEEP(*(.gnu.attributes))
}
/DISCARD/ : { *(.note.GNU-stack) }
}

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/*
* Copyright (c) 2020 Synopsys.
*
* SPDX-License-Identifier: Apache-2.0
*/
/**
* @brief Common parts of the linker scripts for the ARCv2/EM targets.
*/
#include <linker/sections.h>
#include <linker/linker-defs.h>
#include <linker/linker-tool.h>
/* physical address of RAM */
#ifdef CONFIG_HARVARD
#define ROMABLE_REGION ICCM
#define RAMABLE_REGION DCCM
#else
#if defined(CONFIG_XIP) && (FLASH_SIZE != 0)
#define ROMABLE_REGION FLASH
#define RAMABLE_REGION SRAM
#else
#define ROMABLE_REGION SRAM
#define RAMABLE_REGION SRAM
#endif
#endif
#ifdef CONFIG_ARC_MPU_ENABLE
#if CONFIG_ARC_MPU_VER == 2
#define MPU_MIN_SIZE 2048
#elif CONFIG_ARC_MPU_VER == 3
#define MPU_MIN_SIZE 32
#endif
#define MPU_MIN_SIZE_ALIGN . = ALIGN(MPU_MIN_SIZE);
#if defined(CONFIG_MPU_REQUIRES_POWER_OF_TWO_ALIGNMENT)
#define MPU_REGION_SIZE(region_size) \
(1 << LOG2CEIL(region_size))
#else
#define MPU_REGION_SIZE(region_size) \
(region_size)
#endif
#else
#define MPU_MIN_SIZE_ALIGN
#define MPU_REGION_SIZE(region_size) \
(region_size)
#endif
#if defined(CONFIG_XIP)
#define _DATA_IN_ROM __data_rom_start
#else
#define _DATA_IN_ROM
#endif
ENTRY(CONFIG_KERNEL_ENTRY)
MEMORY {
#ifdef FLASH_START
FLASH : ORIGIN = FLASH_START, LENGTH = FLASH_SIZE
#endif
#ifdef ICCM_START
ICCM : ORIGIN = ICCM_START, LENGTH = ICCM_SIZE
#endif
#ifdef SRAM_START
SRAM : ORIGIN = SRAM_START, LENGTH = SRAM_SIZE
#endif
#ifdef DCCM_START
DCCM : ORIGIN = DCCM_START, LENGTH = DCCM_SIZE
#endif
/* Used by and documented in include/linker/intlist.ld */
IDT_LIST : ORIGIN = 0xFFFFF800, LENGTH = 2K
}
SECTIONS {
GROUP_START(ROMABLE_REGION)
SECTION_PROLOGUE(_TEXT_SECTION_NAME,,ALIGN(1024)) {
_image_rom_start = .;
_image_text_start = .;
/* Located in generated directory. This file is populated by the
* zephyr_linker_sources() Cmake function.
*/
#include <snippets-rom-start.ld>
*(".text")
*(".text*")
*(".text.*")
#ifdef CONFIG_USERSPACE
/* to make sure .kobject_data.text occupies a fixed hole, we use the trick
* of ALIGN here with a cost of memfoort print. If assigning program counter
* with an identifier is supported, this trick can be removed
*/
. = ALIGN(CONFIG_KOBJECT_TEXT_AREA);
_kobject_text_area_start = .;
*(".kobject_data.text*")
_kobject_text_area_end = .;
_kobject_text_area_used = _kobject_text_area_end - _kobject_text_area_start;
#ifndef LINKER_PASS2
. = ALIGN(4);
#ifdef CONFIG_DYNAMIC_OBJECTS
PROVIDE(z_object_gperf_find = .);
PROVIDE(z_object_gperf_wordlist_foreach = .);
#else
PROVIDE(z_object_find = .);
PROVIDE(z_object_wordlist_foreach = .);
#endif
. = . + CONFIG_KOBJECT_TEXT_AREA;
#endif
. = ALIGN(CONFIG_KOBJECT_TEXT_AREA);
#endif /* CONFIG_USERSPACE */
_image_text_end = .;
_image_rodata_start = .;
} GROUP_LINK_IN(ROMABLE_REGION)
#include <linker/common-rom.ld>
SECTION_PROLOGUE(_RODATA_SECTION_NAME,,) {
KEEP(*(.openocd_dbg))
KEEP(*(".openocd_dbg.*"))
*(".rodata")
*(".rodata.*")
/* Located in generated directory. This file is populated by the
* zephyr_linker_sources() Cmake function.
*/
#include <snippets-rodata.ld>
#include <linker/kobject-rom.ld>
#if defined (CONFIG_CPLUSPLUS)
/* \todo: add mwdt c++ sections */
#endif
_image_rodata_end = .;
MPU_MIN_SIZE_ALIGN
_image_rom_end = _image_rom_start + MPU_REGION_SIZE(. - _image_rom_start);
_image_rom_size = _image_rom_end - _image_rom_start;
} GROUP_LINK_IN(ROMABLE_REGION)
GROUP_END(ROMABLE_REGION)
GROUP_START(RAMABLE_REGION)
/* Located in generated directory. This file is populated by the
* zephyr_linker_sources() Cmake function.
*/
#include <snippets-ram-sections.ld>
#if defined(CONFIG_USERSPACE)
/*
* because the linker of metware toolchain is strong as gcc's linker,
* e.g., the limitation on . operator, no LOG2CEIL, so for MPU wiht power of 2
* requirement, the alignment of app smem is fixed to MPU_MIN_SIZE which
* is not a correct value for partition with size > MPU_MIN_SIZE.
*/
#define APP_SHARED_ALIGN . = ALIGN(MPU_MIN_SIZE)
#define SMEM_PARTITION_ALIGN(x) . = ALIGN(MPU_MIN_SIZE)
#include <app_smem.ld>
_image_ram_start = _app_smem_start;
_app_smem_size = _app_smem_end - _app_smem_start;
_app_smem_rom_start = LOADADDR(_APP_SMEM_SECTION_NAME);
#endif /* CONFIG_USERSPACE */
SECTION_DATA_PROLOGUE(_BSS_SECTION_NAME,(NOLOAD),) {
MPU_MIN_SIZE_ALIGN
/*
* For performance, BSS section is assumed to be 4 byte aligned and
* a multiple of 4 bytes
*/
. = ALIGN(4);
__bss_start = .;
_image_ram_start = .;
__kernel_ram_start = .;
*(".bss")
*(".bss.*")
*(COMMON)
*(".kernel_bss.*")
/*
* BSP clears this memory in words only and doesn't clear any
* potential left over bytes.
*/
__bss_end = ALIGN(4);
} GROUP_DATA_LINK_IN(RAMABLE_REGION, RAMABLE_REGION)
#include <linker/common-noinit.ld>
SECTION_DATA_PROLOGUE(_DATA_SECTION_NAME,,) {
/* when XIP, .text is in ROM, but vector table must be at start of .data */
__data_ram_start = .;
*(".data")
*(".data.*")
*(".kernel.*")
/* Located in generated directory. This file is populated by the
* zephyr_linker_sources() Cmake function.
*/
#include <snippets-rwdata.ld>
} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
__data_rom_start = LOADADDR(_DATA_SECTION_NAME);
#include <linker/common-ram.ld>
#include <linker/kobject.ld>
#if defined (CONFIG_CPLUSPLUS)
/* \todo add mwdt specific c++ sections */
#endif
/* an empty region to hold symbols, mwdt does not support of setting .
* outside sections
*/
SECTION_DATA_PROLOGUE(_mwdt_ram_end,,) {
__data_ram_end = .;
MPU_MIN_SIZE_ALIGN
/* Define linker symbols */
_image_ram_end = .;
_end = .; /* end of image */
__kernel_ram_end = .;
__kernel_ram_size = __kernel_ram_end - __kernel_ram_start;
/* mwdt requires _fstack, _estack which will be used in _stkchk.
* _stkchk is inserted by mwdt automatically, if _fstack, _estack is not
* set correctly, the brk_s instruction will be called
* here, we use a trick to deceive the compiler.
*/
_fstack = _image_ram_start;
_estack = .;
} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
GROUP_END(RAMABLE_REGION)
/* Located in generated directory. This file is populated by the
* zephyr_linker_sources() Cmake function.
*/
#include <snippets-sections.ld>
}

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/*
* Copyright (c) 2014-2015 Wind River Systems, Inc.
* Copyright (c) 2020 Synopsys.
*
* SPDX-License-Identifier: Apache-2.0
*/
/**
* @brief Common parts of the linker scripts for the ARCv2/EM targets.
*/
#include <linker/sections.h>
#include <linker/linker-defs.h>
#include <linker/linker-tool.h>
/* physical address of RAM */
#ifdef CONFIG_HARVARD
#define ROMABLE_REGION ICCM
#define RAMABLE_REGION DCCM
#if defined(__MWDT_LINKER_CMD__)
#include <arch/arc/v2/linker-mwdt.ld>
#else
#if defined(CONFIG_XIP) && (FLASH_SIZE != 0)
#define ROMABLE_REGION FLASH
#define RAMABLE_REGION SRAM
#else
#define ROMABLE_REGION SRAM
#define RAMABLE_REGION SRAM
#include <arch/arc/v2/linker-gnu.ld>
#endif
#endif
#ifdef CONFIG_ARC_MPU_ENABLE
#if CONFIG_ARC_MPU_VER == 2
#define MPU_MIN_SIZE 2048
#elif CONFIG_ARC_MPU_VER == 3
#define MPU_MIN_SIZE 32
#endif
#define MPU_MIN_SIZE_ALIGN . = ALIGN(MPU_MIN_SIZE );
#if defined(CONFIG_MPU_REQUIRES_POWER_OF_TWO_ALIGNMENT)
#define MPU_ALIGN(region_size) \
. = ALIGN(MPU_MIN_SIZE); \
. = ALIGN( 1 << LOG2CEIL(region_size))
#else
#define MPU_ALIGN(region_size) \
. = ALIGN(MPU_MIN_SIZE)
#endif
#else
#define MPU_MIN_SIZE_ALIGN
#define MPU_ALIGN(region_size) . = ALIGN(4)
#endif
#if defined(CONFIG_XIP)
#define _DATA_IN_ROM __data_rom_start
#else
#define _DATA_IN_ROM
#endif
OUTPUT_ARCH(arc)
ENTRY(CONFIG_KERNEL_ENTRY)
MEMORY {
#ifdef FLASH_START
FLASH (rx) : ORIGIN = FLASH_START, LENGTH = FLASH_SIZE
#endif
#ifdef ICCM_START
ICCM (rwx) : ORIGIN = ICCM_START, LENGTH = ICCM_SIZE
#endif
#ifdef SRAM_START
SRAM (rwx) : ORIGIN = SRAM_START, LENGTH = SRAM_SIZE
#endif
#ifdef DCCM_START
DCCM (rw) : ORIGIN = DCCM_START, LENGTH = DCCM_SIZE
#endif
/* Used by and documented in include/linker/intlist.ld */
IDT_LIST (wx) : ORIGIN = 0xFFFFF7FF, LENGTH = 2K
}
SECTIONS {
#include <linker/rel-sections.ld>
GROUP_START(ROMABLE_REGION)
SECTION_PROLOGUE(_TEXT_SECTION_NAME,,ALIGN(1024)) {
_image_rom_start = .;
_image_text_start = .;
/* Located in generated directory. This file is populated by calling
* zephyr_linker_sources(ROM_START ...). This typically contains the vector
* table and debug information.
*/
#include <snippets-rom-start.ld>
*(.text)
*(".text.*")
*(.gnu.linkonce.t.*)
#include <linker/kobject-text.ld>
} GROUP_LINK_IN(ROMABLE_REGION)
_image_text_end = .;
_image_rodata_start = .;
#include <linker/common-rom.ld>
SECTION_PROLOGUE(_RODATA_SECTION_NAME,,) {
KEEP(*(.openocd_dbg))
KEEP(*(".openocd_dbg.*"))
*(.rodata)
*(".rodata.*")
*(.gnu.linkonce.r.*)
/* Located in generated directory. This file is populated by the
* zephyr_linker_sources() Cmake function.
*/
#include <snippets-rodata.ld>
#include <linker/kobject-rom.ld>
} GROUP_LINK_IN(ROMABLE_REGION)
#include <linker/cplusplus-rom.ld>
_image_rodata_end = .;
MPU_ALIGN(_image_rodata_end - _image_rom_start);
_image_rom_end = .;
_image_rom_size = _image_rom_end - _image_rom_start;
GROUP_END(ROMABLE_REGION)
GROUP_START(RAMABLE_REGION)
#include <app_data_alignment.ld>
/* Located in generated directory. This file is populated by the
* zephyr_linker_sources() Cmake function.
*/
#include <snippets-ram-sections.ld>
#if defined(CONFIG_USERSPACE)
#define APP_SHARED_ALIGN MPU_MIN_SIZE_ALIGN
#define SMEM_PARTITION_ALIGN MPU_ALIGN
#include <app_smem.ld>
_image_ram_start = _app_smem_start;
_app_smem_size = _app_smem_end - _app_smem_start;
_app_smem_rom_start = LOADADDR(_APP_SMEM_SECTION_NAME);
#endif /* CONFIG_USERSPACE */
SECTION_DATA_PROLOGUE(_BSS_SECTION_NAME,(NOLOAD),) {
MPU_MIN_SIZE_ALIGN
/*
* For performance, BSS section is assumed to be 4 byte aligned and
* a multiple of 4 bytes
*/
. = ALIGN(4);
__bss_start = .;
_image_ram_start = .;
__kernel_ram_start = .;
*(.bss)
*(".bss.*")
*(COMMON)
*(".kernel_bss.*")
/*
* BSP clears this memory in words only and doesn't clear any
* potential left over bytes.
*/
__bss_end = ALIGN(4);
} GROUP_DATA_LINK_IN(RAMABLE_REGION, RAMABLE_REGION)
#include <linker/common-noinit.ld>
SECTION_DATA_PROLOGUE(_DATA_SECTION_NAME,,) {
/* when XIP, .text is in ROM, but vector table must be at start of .data */
__data_ram_start = .;
*(.data)
*(".data.*")
*(".kernel.*")
/* Located in generated directory. This file is populated by the
* zephyr_linker_sources() Cmake function.
*/
#include <snippets-rwdata.ld>
} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
__data_rom_start = LOADADDR(_DATA_SECTION_NAME);
#include <linker/common-ram.ld>
#include <linker/kobject.ld>
#include <linker/cplusplus-ram.ld>
__data_ram_end = .;
MPU_MIN_SIZE_ALIGN
/* Define linker symbols */
_image_ram_end = .;
_end = .; /* end of image */
__kernel_ram_end = .;
__kernel_ram_size = __kernel_ram_end - __kernel_ram_start;
GROUP_END(RAMABLE_REGION)
/* Located in generated directory. This file is populated by the
* zephyr_linker_sources() Cmake function.
*/
#include <snippets-sections.ld>
#include <linker/debug-sections.ld>
SECTION_PROLOGUE(.ARC.attributes, 0,)
{
KEEP(*(.ARC.attributes))
KEEP(*(.gnu.attributes))
}
/DISCARD/ : { *(.note.GNU-stack) }
}