michaelh/zephyr
1
0
Fork 0
Code Releases Activity

linker: align _image_rodata and _image_rom start/end/size linker symbols

Browse source 
Cleanup and preparation commit for linker script generator.

Zephyr linker scripts provides start and end symbols for each larger
areas in the linker script.

The symbols _image_rom_start and _image_rom_end corresponds to the group
ROMABLE_REGION defined in the ld linker scripts.

The symbols _image_rodata_start and _image_rodata_end is not placed as
independent group but covers common-rom.ld, thread-local-storage.ld,
kobject-rom.ld and snippets-rodata.ld.

This commit align those names and prepares for generation of groups in
linker scripts.

The symbols describing the ROMABLE_REGION will be renamed to:
_image_rom_start -> __rom_region_start
_image_rom_end   -> __rom_region_end

The rodata will also use the group symbol notation as:
_image_rodata_start -> __rodata_region_start
_image_rodata_end   -> __rodata_region_end

Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
This commit is contained in:
Torsten Rasmussen 2021-08-09 18:16:51 +02:00 • committed by Anas Nashif
commit c6aded2dcb
23 changed files with 86 additions and 86 deletions
Download patch file Download diff file Expand all files Collapse all files

12
include/arch/arc/v2/linker.ld
View file

@ -74,7 +74,7 @@ SECTIONS {
GROUP_START(ROMABLE_REGION)
SECTION_PROLOGUE(_TEXT_SECTION_NAME,,ALIGN(1024)) {
_image_rom_start = .;
__rom_region_start = .;
_image_text_start = .;
/* Located in generated directory. This file is populated by the
@ -96,7 +96,7 @@ SECTIONS {
#endif /* CONFIG_CPLUSPLUS && !CONFIG_CPP_STATIC_INIT_GNU && __MWDT_LINKER_CMD__ */
_image_text_end = .;
_image_rodata_start = .;
__rodata_region_start = .;
#include <linker/common-rom.ld>
#include <linker/thread-local-storage.ld>
@ -127,10 +127,10 @@ SECTIONS {
#include <linker/cplusplus-rom.ld>
#endif /* __MWDT_LINKER_CMD__ */
_image_rodata_end = .;
MPU_ALIGN(_image_rodata_end - _image_rom_start);
_image_rom_end = .;
_image_rom_size = _image_rom_end - _image_rom_start;
__rodata_region_end = .;
MPU_ALIGN(__rodata_region_end - __rom_region_start);
__rom_region_end = .;
__rom_region_size = __rom_region_end - __rom_region_start;
GROUP_END(ROMABLE_REGION)

10
include/arch/arm/aarch32/cortex_a_r/scripts/linker.ld
View file

@ -103,9 +103,9 @@ SECTIONS
GROUP_START(ROMABLE_REGION)
#if defined(CONFIG_XIP)
_image_rom_start = ROM_ADDR;
__rom_region_start = ROM_ADDR;
#else
_image_rom_start = RAM_ADDR;
__rom_region_start = RAM_ADDR;
#endif
SECTION_PROLOGUE(rom_start,,)
@ -170,7 +170,7 @@ SECTIONS
__exidx_end = .;
} GROUP_LINK_IN(ROMABLE_REGION)
_image_rodata_start = .;
__rodata_region_start = .;
#include <linker/common-rom.ld>
#include <linker/thread-local-storage.ld>
@ -208,7 +208,7 @@ SECTIONS
MPU_ALIGN(ABSOLUTE(.) - _image_rom_start);
} GROUP_LINK_IN(ROMABLE_REGION)
_image_rodata_end = .;
__rodata_region_end = .;
_image_rom_end = .;
_image_rom_end_order = (LOG2CEIL(_image_rom_end) - 1) << 1;
@ -345,6 +345,6 @@ SECTIONS
/* To provide the image size as a const expression,
* calculate this value here. */
_flash_used = LOADADDR(.last_section) - _image_rom_start;
_flash_used = LOADADDR(.last_section) - __rom_region_start;
}

12
include/arch/arm/aarch32/cortex_m/scripts/linker.ld
View file

@ -124,7 +124,7 @@ SECTIONS
GROUP_START(ROMABLE_REGION)
_image_rom_start = ROM_ADDR;
__rom_region_start = ROM_ADDR;
SECTION_PROLOGUE(rom_start,,)
{
@ -189,7 +189,7 @@ SECTIONS
__exidx_end = .;
} GROUP_LINK_IN(ROMABLE_REGION)
_image_rodata_start = .;
__rodata_region_start = .;
#include <linker/common-rom.ld>
#include <linker/thread-local-storage.ld>
@ -222,9 +222,9 @@ SECTIONS
#include <linker/cplusplus-rom.ld>
_image_rodata_end = .;
MPU_ALIGN(_image_rodata_end -_image_rom_start);
_image_rom_end = .;
__rodata_region_end = .;
MPU_ALIGN(__rodata_region_end -__rom_region_start);
__rom_region_end = .;
GROUP_END(ROMABLE_REGION)
@ -460,6 +460,6 @@ SECTION_PROLOGUE(.last_section,(NOLOAD),)
/* To provide the image size as a const expression,
* calculate this value here. */
_flash_used = LOADADDR(.last_section) - _image_rom_start;
_flash_used = LOADADDR(.last_section) - __rom_region_start;
}

12
include/arch/arm64/scripts/linker.ld
View file

@ -89,7 +89,7 @@ SECTIONS
GROUP_START(ROMABLE_REGION)
_image_rom_start = ROM_ADDR;
__rom_region_start = ROM_ADDR;
SECTION_PROLOGUE(_TEXT_SECTION_NAME,,)
{
@ -154,7 +154,7 @@ SECTIONS
__exidx_end = .;
} GROUP_ROM_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
_image_rodata_start = .;
__rodata_region_start = .;
#include <linker/common-rom.ld>
#include <linker/thread-local-storage.ld>
@ -179,9 +179,9 @@ SECTIONS
#include <linker/cplusplus-rom.ld>
MMU_ALIGN;
_image_rodata_end = .;
_image_rodata_size = _image_rodata_end - _image_rodata_start;
_image_rom_end = .;
__rodata_region_end = .;
__rodata_region_size = __rodata_region_end - __rodata_region_start;
__rom_region_end = .;
/*
* These are here according to 'arm-zephyr-elf-ld --verbose',
@ -317,6 +317,6 @@ SECTIONS
/* To provide the image size as a const expression,
* calculate this value here. */
_flash_used = LOADADDR(.last_section) - _image_rom_start;
_flash_used = LOADADDR(.last_section) - __rom_region_start;
}

6
include/arch/nios2/linker.ld
View file

@ -155,10 +155,10 @@ SECTIONS
#include <linker/cplusplus-rom.ld>
_image_rodata_end = .;
_image_rodata_size = _image_rodata_end - _image_rodata_start;
__rodata_region_end = .;
__rodata_region_size = __rodata_region_end - __rodata_region_start;
_image_rom_end = .;
__rom_region_end = .;
__data_region_load_start = ALIGN(4); /* XIP imaged DATA ROM start addr */
GROUP_END(ROMABLE_REGION)

12
include/arch/riscv/common/linker.ld
View file

@ -111,7 +111,7 @@ SECTIONS
}
GROUP_START(ROMABLE_REGION)
_image_rom_start = ROM_BASE;
__rom_region_start = ROM_BASE;
SECTION_PROLOGUE(_VECTOR_SECTION_NAME,,)
{
@ -163,7 +163,7 @@ SECTIONS
_image_text_end = .;
_image_rodata_start = .;
__rodata_region_start = .;
#include <linker/common-rom.ld>
#include <linker/thread-local-storage.ld>
@ -186,8 +186,8 @@ SECTIONS
} GROUP_LINK_IN(ROMABLE_REGION)
#include <linker/cplusplus-rom.ld>
_image_rodata_end = .;
MPU_ALIGN(_image_rodata_end - _image_rom_start);
__rodata_region_end = .;
MPU_ALIGN(__rodata_region_end - __rom_region_start);
GROUP_END(ROMABLE_REGION)
GROUP_START(RAMABLE_REGION)
@ -369,7 +369,7 @@ SECTION_PROLOGUE(.last_section,(NOLOAD),)
/* To provide the image size as a const expression,
* calculate this value here. */
_image_rom_end = LOADADDR(.last_section);
_image_rom_size = _image_rom_end - _image_rom_start;
__rom_region_end = LOADADDR(.last_section);
__rom_region_size = __rom_region_end - __rom_region_start;
}

10
include/arch/sparc/linker.ld
View file

@ -24,7 +24,7 @@ SECTIONS
#include <linker/rel-sections.ld>
_image_rom_start = .;
__rom_region_start = .;
SECTION_PROLOGUE(_TEXT_SECTION_NAME,,)
{
@ -40,7 +40,7 @@ SECTIONS
} GROUP_LINK_IN(REGION_TEXT)
_image_text_end = .;
_image_rodata_start = .;
__rodata_region_start = .;
#include <linker/common-rom.ld>
#include <linker/thread-local-storage.ld>
@ -62,10 +62,10 @@ SECTIONS
#include <linker/cplusplus-rom.ld>
_image_rodata_end = .;
_image_rodata_size = _image_rodata_end - _image_rodata_start;
__rodata_region_end = .;
__rodata_region_size = __rodata_region_end - __rodata_region_start;
_image_rom_end = .;
__rom_region_end = .;
__data_region_load_start = .;
__data_region_start = .;

12
include/arch/x86/ia32/linker.ld
View file

@ -289,7 +289,7 @@ SECTIONS
. = ALIGN(8);
#ifdef CONFIG_XIP
_image_rom_start = PHYS_LOAD_ADDR;
__rom_region_start = PHYS_LOAD_ADDR;
#endif
SECTION_PROLOGUE(_TEXT_SECTION_NAME,,)
{
@ -329,7 +329,7 @@ SECTIONS
_image_text_end = .;
_image_text_size = _image_text_end - _image_text_start;
_image_rodata_start = .;
__rodata_region_start = .;
#ifndef CONFIG_LINKER_USE_PINNED_SECTION
#include <linker/common-rom.ld>
@ -363,11 +363,11 @@ SECTIONS
MMU_PAGE_ALIGN_PERM
/* ROM ends here, position counter will now be in RAM areas */
#ifdef CONFIG_XIP
_image_rom_end = .;
_image_rom_size = _image_rom_end - _image_rom_start;
__rom_region_end = .;
__rom_region_size = __rom_region_end - __rom_region_start;
#endif
_image_rodata_end = .;
_image_rodata_size = _image_rodata_end - _image_rodata_start;
__rodata_region_end = .;
__rodata_region_size = __rodata_region_end - __rodata_region_start;
GROUP_END(ROMABLE_REGION)
/*
* Needed for dynamic linking which we do not have, do discard

10
include/arch/x86/intel64/linker.ld
View file

@ -88,7 +88,7 @@ SECTIONS
SECTION_PROLOGUE(_TEXT_SECTION_NAME,,)
{
. = ALIGN(16);
_image_rom_start = .;
__rom_region_start = .;
_image_text_start = .;
z_mapped_start = .;
*(.text)
@ -101,7 +101,7 @@ SECTIONS
_image_text_end = .;
_image_text_size = _image_text_end - _image_text_start;
_image_rodata_start = .;
__rodata_region_start = .;
#include <linker/common-rom.ld>
#include <linker/thread-local-storage.ld>
@ -128,9 +128,9 @@ SECTIONS
#include <linker/cplusplus-rom.ld>
MMU_PAGE_ALIGN_PERM
_image_rodata_end = .;
_image_rodata_size = _image_rodata_end - _image_rodata_start;
_image_rom_end = .;
__rodata_region_end = .;
__rodata_region_size = __rodata_region_end - __rodata_region_start;
__rom_region_end = .;
#ifdef CONFIG_USERSPACE
/* APP SHARED MEMORY REGION */

12
include/linker/linker-defs.h
View file

@ -236,9 +236,9 @@ extern char z_mapped_end[];
#endif /* CONFIG_MMU */
/* Includes text and rodata */
extern char _image_rom_start[];
extern char _image_rom_end[];
extern char _image_rom_size[];
extern char __rom_region_start[];
extern char __rom_region_end[];
extern char __rom_region_size[];
/* Includes all ROMable data, i.e. the size of the output image file. */
extern char _flash_used[];
@ -251,9 +251,9 @@ extern char _image_text_start[];
extern char _image_text_end[];
extern char _image_text_size[];
extern char _image_rodata_start[];
extern char _image_rodata_end[];
extern char _image_rodata_size[];
extern char __rodata_region_start[];
extern char __rodata_region_end[];
extern char __rodata_region_size[];
extern char _vector_start[];
extern char _vector_end[];