Commit cc897a51 authored by Wayne Ren's avatar Wayne Ren Committed by Maureen Helm
Browse files

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: default avatarWayne Ren <wei.ren@synopsys.com>
parent 02270560

include/arch/arc/v2/linker-gnu.ld

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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) }

	}

include/arch/arc/v2/linker-mwdt.ld

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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>



	}

include/arch/arc/v2/linker.ld

+4 −213
Original line number Diff line number Diff line 
/*

 * 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

#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

#if defined(__MWDT_LINKER_CMD__)

#include <arch/arc/v2/linker-mwdt.ld>

#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

#include <arch/arc/v2/linker-gnu.ld>

#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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