blob: beb78735f98f67f1b1c08c32203ecd816bab0624 [file] [log] [blame]
/*
* Copyright (c) 2013-2014 Wind River Systems, Inc.
* Copyright (c) 2021 Intel Corporation
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/devicetree.h>
#include <offsets.h>
#include <zephyr/linker/linker-defs.h>
#include <zephyr/linker/linker-tool.h>
#include <zephyr/sys/util.h>
#include <zephyr/sys/mem_manage.h>
/* Bounds of physical RAM from DTS */
#define PHYS_RAM_ADDR DT_REG_ADDR(DT_CHOSEN(zephyr_sram))
#define PHYS_RAM_SIZE DT_REG_SIZE(DT_CHOSEN(zephyr_sram))
/* Bounds of flash from DTS */
#define FLASH_ROM_ADDR DT_REG_ADDR(DT_CHOSEN(zephyr_flash))
#define FLASH_ROM_SIZE DT_REG_SIZE(DT_CHOSEN(zephyr_flash))
/* Virtual base address for the kernel; with CONFIG_MMU this is not necessarily
* the same as its physical location, although an identity mapping for RAM
* is still supported by setting CONFIG_KERNEL_VM_BASE=CONFIG_SRAM_BASE_ADDRESS.
*/
#ifdef Z_VM_KERNEL
#define KERNEL_BASE_ADDR \
(CONFIG_KERNEL_VM_BASE + CONFIG_KERNEL_VM_OFFSET)
#define KERNEL_RAM_SIZE \
(CONFIG_KERNEL_VM_SIZE - CONFIG_KERNEL_VM_OFFSET)
#define PHYS_RAM_AVAIL \
(PHYS_RAM_SIZE - CONFIG_SRAM_OFFSET)
#else
#define KERNEL_BASE_ADDR (PHYS_RAM_ADDR + CONFIG_SRAM_OFFSET)
#define KERNEL_RAM_SIZE (PHYS_RAM_SIZE - CONFIG_SRAM_OFFSET)
#endif
/* "kernel RAM" for linker VMA allocations starts at the offset */
/* Physical RAM location where the kernel image is loaded */
#define PHYS_LOAD_ADDR (PHYS_RAM_ADDR + CONFIG_SRAM_OFFSET)
#ifdef CONFIG_USERSPACE
#define SMEM_PARTITION_ALIGN(size) MMU_PAGE_ALIGN_PERM
#define APP_SHARED_ALIGN MMU_PAGE_ALIGN_PERM
#endif
MEMORY
{
#if defined(Z_VM_KERNEL)
ROM (rx) : ORIGIN = PHYS_LOAD_ADDR, LENGTH = PHYS_RAM_AVAIL
#endif
RAM (wx) : ORIGIN = KERNEL_BASE_ADDR, LENGTH = KERNEL_RAM_SIZE
#if defined(CONFIG_DEMAND_PAGING) && !defined(CONFIG_LINKER_GENERIC_SECTIONS_PRESENT_AT_BOOT)
FLASH (rw) : ORIGIN = FLASH_ROM_ADDR, LENGTH = FLASH_ROM_SIZE
#endif
/*
* On 32-bit x86, fake memory area for build-time IDT generation data.
*
* It doesn't matter where this region goes as it is stripped from the
* final ELF image. The address doesn't even have to be valid on the
* target. However, it shouldn't overlap any other regions.
*/
IDT_LIST : ORIGIN = 0xFFFF1000, LENGTH = 2K
}
#if defined(Z_VM_KERNEL)
#define ROMABLE_REGION ROM
#define RAMABLE_REGION RAM
#else
#define ROMABLE_REGION RAM
#define RAMABLE_REGION RAM
#endif
#ifdef CONFIG_MMU
#define MMU_PAGE_ALIGN . = ALIGN(CONFIG_MMU_PAGE_SIZE);
#else
#define MMU_PAGE_ALIGN
#endif
#if defined(CONFIG_DEMAND_PAGING) && !defined(CONFIG_LINKER_GENERIC_SECTIONS_PRESENT_AT_BOOT)
#undef SECTION_PROLOGUE
#define SECTION_PROLOGUE(name, options, align) \
name options : ALIGN_WITH_INPUT align
#undef SECTION_DATA_PROLOGUE
#define SECTION_DATA_PROLOGUE(name, options, align) \
name options : ALIGN_WITH_INPUT align
#undef GROUP_ROM_LINK_IN
#define GROUP_ROM_LINK_IN(vregion, lregion) > vregion AT > lregion
#undef GROUP_DATA_LINK_IN
#define GROUP_DATA_LINK_IN(vregion, lregion) > vregion AT > lregion
#undef GROUP_NOLOAD_LINK_IN
#define GROUP_NOLOAD_LINK_IN(vregion, lregion) > vregion AT > lregion
#endif
/* Used to align areas with separate memory permission characteristics
* so that the page permissions can be set in the MMU. Without this,
* the kernel is just one blob with the same RWX permissions on all RAM
*/
#ifdef CONFIG_SRAM_REGION_PERMISSIONS
#define MMU_PAGE_ALIGN_PERM MMU_PAGE_ALIGN
#else
#define MMU_PAGE_ALIGN_PERM
#endif
/* For all source files under arch/x86/. */
#define LIB_ARCH_X86_IN_SECT(lsect) \
*libarch__x86__core.a.a:(.##lsect) \
*libarch__x86__core.a:(.##lsect##.*)
#ifdef CONFIG_MINIMAL_LIBC
/* For all source files under lib/libc/minimal/.
* These files includes, for example, math and string functions.
*/
#define LIB_C_IN_SECT(lsect) \
*liblib__libc__minimal.a:(.##lsect) \
*liblib__libc__minimal.a:(.##lsect##.*)
#endif /* CONFIG_MINIMAL_LIBC */
#ifdef CONFIG_NEWLIB_LIBC
/* For Newlib libc-hook.c. */
#define LIB_C_IN_SECT(lsect) \
*liblib__libc__newlib.a:libc-hooks.c.obj(.##lsect) \
*liblib__libc__newlib.a:libc-hooks.c.obj(.##lsect##.*)
#endif /* CONFIG_NEWLIB_LIBC */
#ifdef CONFIG_PICOLIBC
/* For Picolibc libc-hook.c. */
#define LIB_C_IN_SECT(lsect) \
*liblib__libc__picolibc.a:libc-hooks.c.obj(.##lsect) \
*liblib__libc__picolibc.a:libc-hooks.c.obj(.##lsect##.*)
#endif /* CONFIG_PICOLIBC */
/*
* For drivers that are usually used (e.g. serial)
*/
#define LIB_DRIVERS_IN_SECT(lsect) \
*libdrivers__serial.a:(.##lsect) \
*libdrivers__serial.a:(.##lsect##.*) \
*hpet.c.obj(.##lsect) \
*hpet.c.obj(.##lsect##.*) \
*intc_ioapic.c.obj(.##lsect) \
*intc_ioapic.c.obj(.##lsect##.*) \
*intc_loapic.c.obj(.##lsect) \
*intc_loapic.c.obj(.##lsect##.*) \
*intc_system_apic.c.obj(.##lsect) \
*intc_system_apic.c.obj(.##lsect##.*) \
*rand32_timer.c.obj(.##lsect) \
*rand32_timer.c.obj(.##lsect##.*) \
*uart_console.c.obj(.##lsect) \
*uart_console.c.obj(.##lsect##.*)
/* For all source files under kernel/. and kernel related files */
#define LIB_KERNEL_IN_SECT(lsect) \
*libkernel.a:(.##lsect) \
*libkernel.a:(.##lsect##.*) \
*libsubsys__demand_paging__*.a:(.##lsect) \
*libsubsys__demand_paging__*.a:(.##lsect##.*)
/* For particular file packaged in libzephyr.a. */
#define LIB_ZEPHYR_OBJECT_FILE_IN_SECT(lsect, objfile) \
*libzephyr.a:objfile.c.obj(.##lsect) \
*libzephyr.a:objfile.c.obj(.##lsect##.*)
/* For source files under lib/os/ with commonly used functions. */
#define LIB_ZEPHYR_IN_SECT(lsect) \
LIB_ZEPHYR_OBJECT_FILE_IN_SECT(lsect, assert) \
LIB_ZEPHYR_OBJECT_FILE_IN_SECT(lsect, bitarray) \
LIB_ZEPHYR_OBJECT_FILE_IN_SECT(lsect, cbprintf_complete) \
LIB_ZEPHYR_OBJECT_FILE_IN_SECT(lsect, cbprintf_nano) \
LIB_ZEPHYR_OBJECT_FILE_IN_SECT(lsect, configs) \
LIB_ZEPHYR_OBJECT_FILE_IN_SECT(lsect, heap) \
LIB_ZEPHYR_OBJECT_FILE_IN_SECT(lsect, heap-validate) \
LIB_ZEPHYR_OBJECT_FILE_IN_SECT(lsect, mutex) \
LIB_ZEPHYR_OBJECT_FILE_IN_SECT(lsect, notify) \
LIB_ZEPHYR_OBJECT_FILE_IN_SECT(lsect, printk) \
LIB_ZEPHYR_OBJECT_FILE_IN_SECT(lsect, sem) \
LIB_ZEPHYR_OBJECT_FILE_IN_SECT(lsect, stdout_console) \
LIB_ZEPHYR_OBJECT_FILE_IN_SECT(lsect, sys_clock_init) \
LIB_ZEPHYR_OBJECT_FILE_IN_SECT(lsect, rb) \
LIB_ZEPHYR_OBJECT_FILE_IN_SECT(lsect, thread_entry) \
LIB_ZEPHYR_OBJECT_FILE_IN_SECT(lsect, work_q)
/*
* Catch all for all internal/external kernel functions
* as they are usually defined as "static inline" where
* they are attached to the source which uses them.
* Hence the need to specify them here so they can be pinned.
*/
#define ZEPHYR_KERNEL_FUNCS_IN_SECT \
*(.text.atomic_*) \
*(.text.k_*) \
*(.text.sys_*_bit) \
*(.text.sys_bitfield_*) \
*(.text.sys_clock_hw_cycles_per_sec) \
*(.text.sys_cache_*) \
*(.text.sys_dcache_*) \
*(.text.sys_icache_*) \
*(.text.sys_mutex_*) \
*(.text.sys_notify_*) \
*(.text.sys_dlist_*) \
*(.text.sys_slist_*) \
*(.text.sys_sflist_*) \
*(.text.sys_sfnode_*) \
*(.text.sys_io_*) \
*(.text.sys_in*) \
*(.text.sys_out*) \
*(.text.sys_read*) \
*(.text.sys_write*) \
*(.text.sys_get_be*) \
*(.text.sys_get_le*) \
*(.text.sys_put_be*) \
*(.text.sys_put_le*) \
*(.text.sys_mem_swap) \
*(.text.sys_memcpy_swap) \
*(.text.z_*)
/* For logging subsys */
#define LIB_SUBSYS_LOGGING_IN_SECT(lsect) \
*log_*.c.obj(.##lsect) \
*log_*.c.obj(.##lsect.*) \
*mpsc_pbuf.c.obj(.##lsect) \
*mpsc_pbuf.c.obj(.##lsect.*)
epoint = Z_MEM_PHYS_ADDR(CONFIG_KERNEL_ENTRY);
ENTRY(epoint)
/* SECTIONS definitions */
SECTIONS
{
#include <zephyr/linker/rel-sections.ld>
/DISCARD/ :
{
*(.plt)
}
/DISCARD/ :
{
*(.iplt)
}
#ifdef CONFIG_LINKER_USE_BOOT_SECTION
SECTION_PROLOGUE(boot.text,,)
{
#include <snippets-rom-start.ld>
MMU_PAGE_ALIGN
lnkr_boot_start = .;
z_mapped_start = .;
lnkr_boot_text_start = .;
KEEP(*(.boot_text.__start))
*(.boot_text)
*(.boot_text.*)
*(.text.k_mem_paging_backing_store_init)
*(.text.k_mem_paging_eviction_init)
MMU_PAGE_ALIGN_PERM
lnkr_boot_text_end = .;
} GROUP_ROM_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
SECTION_PROLOGUE(boot.rodata,,)
{
MMU_PAGE_ALIGN_PERM
lnkr_boot_rodata_start = .;
*(.boot_rodata)
*(.boot_rodata.*)
MMU_PAGE_ALIGN_PERM
lnkr_boot_rodata_end = .;
} GROUP_ROM_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
SECTION_PROLOGUE(boot.data,,)
{
MMU_PAGE_ALIGN_PERM
. = ALIGN(4);
lnkr_boot_data_start = .;
*(.boot_data)
*(.boot_data.*)
lnkr_boot_data_end = .;
} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
SECTION_PROLOGUE(boot.bss, (NOLOAD),)
{
. = ALIGN(4);
lnkr_boot_bss_start = .;
*(.boot_bss)
*(.boot_bss.*)
lnkr_boot_bss_end = .;
} GROUP_NOLOAD_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
SECTION_PROLOGUE(boot.noinit, (NOLOAD),)
{
. = ALIGN(4);
lnkr_boot_noinit_start = .;
*(.boot_noinit)
*(.boot_noinit.*)
lnkr_boot_noinit_end = .;
MMU_PAGE_ALIGN
lnkr_boot_end = .;
} GROUP_NOLOAD_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
lnkr_boot_text_size = lnkr_boot_text_end - lnkr_boot_text_start;
lnkr_boot_rodata_size = lnkr_boot_rodata_end - lnkr_boot_rodata_start;
lnkr_boot_data_size = lnkr_boot_data_end - lnkr_boot_data_start;
lnkr_boot_bss_size = lnkr_boot_bss_end - lnkr_boot_bss_start;
lnkr_boot_noinit_size = lnkr_boot_noinit_end - lnkr_boot_noinit_start;
#endif /* CONFIG_LINKER_USE_BOOT_SECTION */
#ifdef CONFIG_LINKER_USE_PINNED_SECTION
SECTION_PROLOGUE(pinned.text,,)
{
#ifndef CONFIG_LINKER_USE_BOOT_SECTION
#include <snippets-rom-start.ld>
#endif
MMU_PAGE_ALIGN
lnkr_pinned_start = .;
#ifndef CONFIG_LINKER_USE_BOOT_SECTION
z_mapped_start = .;
#endif
lnkr_pinned_text_start = .;
LIB_KERNEL_IN_SECT(text)
LIB_ARCH_X86_IN_SECT(text)
*(.text._OffsetAbsSyms)
*(.pinned_text)
*(.pinned_text.*)
LIB_ZEPHYR_IN_SECT(text)
LIB_C_IN_SECT(text)
LIB_DRIVERS_IN_SECT(text)
LIB_SUBSYS_LOGGING_IN_SECT(text)
*_divdi3.o(.text)
*_udivdi3.o(.text)
*_udivmoddi4.o(.text)
*_umoddi3.o(.text)
*_popcountsi2.o(.text)
*(.gnu.linkonce.t.exc_*)
*(.text.*.constprop)
*(.text.*.constprop.*)
#ifdef CONFIG_NEWLIB_LIBC
*libc.a:(.text)
*libc.a:(.text.*)
#endif /* CONFIG_NEWLIB_LIBC */
ZEPHYR_KERNEL_FUNCS_IN_SECT
#include <zephyr/linker/kobject-text.ld>
MMU_PAGE_ALIGN_PERM
lnkr_pinned_text_end = .;
} GROUP_ROM_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
MMU_PAGE_ALIGN_PERM
lnkr_pinned_rodata_start = .;
#include <zephyr/linker/common-rom.ld>
#include <zephyr/linker/thread-local-storage.ld>
SECTION_PROLOGUE(pinned.rodata,,)
{
#include <zephyr/arch/x86/ia32/scripts/static_intr.ld>
LIB_KERNEL_IN_SECT(rodata)
LIB_ARCH_X86_IN_SECT(rodata)
*(.pinned_rodata)
*(.pinned_rodata.*)
LIB_ZEPHYR_IN_SECT(rodata)
LIB_C_IN_SECT(rodata)
LIB_DRIVERS_IN_SECT(rodata)
LIB_SUBSYS_LOGGING_IN_SECT(rodata)
/* Static strings */
*(.rodata.str*.*)
*(.rodata.*.str*.*)
#ifdef CONFIG_NEWLIB_LIBC
*libc.a:(.rodata)
*libc.a:(.rodata.*)
#endif /* CONFIG_NEWLIB_LIBC */
#include <snippets-rodata.ld>
#include <zephyr/linker/kobject-rom.ld>
MMU_PAGE_ALIGN_PERM
lnkr_pinned_rodata_end = .;
} GROUP_ROM_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
SECTION_PROLOGUE(pinned.data,,)
{
MMU_PAGE_ALIGN_PERM
lnkr_pinned_data_start = .;
. = ALIGN(4);
#include <zephyr/arch/x86/ia32/scripts/shared_kernel_pages.ld>
#include <zephyr/arch/x86/ia32/scripts/dynamic_intr.ld>
LIB_KERNEL_IN_SECT(data)
LIB_ARCH_X86_IN_SECT(data)
*(.pinned_data)
*(.pinned_data.*)
LIB_ZEPHYR_IN_SECT(data)
LIB_C_IN_SECT(data)
LIB_DRIVERS_IN_SECT(data)
LIB_SUBSYS_LOGGING_IN_SECT(data)
} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
#include <zephyr/linker/common-ram.ld>
#include <zephyr/arch/x86/pagetables.ld>
#include <zephyr/linker/kobject-data.ld>
lnkr_pinned_data_end = .;
SECTION_PROLOGUE(pinned.bss, (NOLOAD),)
{
. = ALIGN(4);
lnkr_pinned_bss_start = .;
LIB_KERNEL_IN_SECT(bss)
LIB_ARCH_X86_IN_SECT(bss)
*(.pinned_bss)
*(.pinned_bss.*)
LIB_ZEPHYR_IN_SECT(bss)
LIB_C_IN_SECT(bss)
LIB_DRIVERS_IN_SECT(bss)
LIB_SUBSYS_LOGGING_IN_SECT(bss)
lnkr_pinned_bss_end = .;
} GROUP_NOLOAD_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
#ifdef CONFIG_USERSPACE
/* PINNED APP SHARED MEMORY REGION */
#include <app_smem_pinned.ld>
_app_smem_pinned_size = _app_smem_pinned_end - _app_smem_pinned_start;
_app_smem_pinned_num_words = _app_smem_pinned_size >> 2;
#endif /* CONFIG_USERSPACE */
SECTION_PROLOGUE(pinned.noinit, (NOLOAD),)
{
. = ALIGN(4);
lnkr_pinned_noinit_start = .;
LIB_KERNEL_IN_SECT(noinit)
LIB_ARCH_X86_IN_SECT(noinit)
*(.pinned_noinit)
*(.pinned_noinit.*)
LIB_ZEPHYR_IN_SECT(noinit)
LIB_C_IN_SECT(noinit)
LIB_DRIVERS_IN_SECT(noinit)
LIB_SUBSYS_LOGGING_IN_SECT(noinit)
#ifdef CONFIG_ZTEST
/* For tests/kernel/mem_slab/ tests */
*(.noinit.*.k_mem_slab_buf_*)
/* For tests/kernel/mem_heap tests */
*(.noinit.*.kheap_buf_*)
/* Pin ztest_thread_stack.
* This must be done or else double fault
* may arise: testing exceptions while
* page fault for the ztest stack.
*/
*libsubsys__testsuite__ztest.a:(.noinit.*)
#endif
lnkr_pinned_noinit_end = .;
MMU_PAGE_ALIGN
lnkr_pinned_end = .;
} GROUP_NOLOAD_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
lnkr_pinned_text_size = lnkr_pinned_text_end - lnkr_pinned_text_start;
lnkr_pinned_rodata_size = lnkr_pinned_rodata_end - lnkr_pinned_rodata_start;
lnkr_pinned_data_size = lnkr_pinned_data_end - lnkr_pinned_data_start;
lnkr_pinned_bss_size = lnkr_pinned_bss_end - lnkr_pinned_bss_start;
lnkr_pinned_noinit_size = lnkr_pinned_noinit_end - lnkr_pinned_noinit_start;
#endif /* CONFIG_LINKER_USE_PINNED_SECTION */
#if defined(CONFIG_DEMAND_PAGING) && !defined(CONFIG_LINKER_GENERIC_SECTIONS_PRESENT_AT_BOOT)
/* From now on, put symbols into FLASH */
#undef ROMABLE_REGION
#define ROMABLE_REGION FLASH
/* This is to align the following sections in flash
* to their corresponding virtual addresses.
* In other words, the offset from start of flash
* for these sections would be the same from start of
* their virtual addresses. This provides a simple and
* direct mapping from backing store.
*/
flash_load_offset :
{
. = FLASH_ROM_ADDR + (lnkr_pinned_end - KERNEL_BASE_ADDR);
} > FLASH AT > FLASH
#endif
GROUP_START(ROMABLE_REGION)
. = ALIGN(8);
SECTION_PROLOGUE(_TEXT_SECTION_NAME,,)
{
__text_region_start = .;
#if !defined(CONFIG_LINKER_USE_BOOT_SECTION) || \
!defined(CONFIG_LINKER_USE_PINNED_SECTION)
z_mapped_start = .;
#endif
#if !defined(CONFIG_LINKER_USE_BOOT_SECTION) || \
!defined(CONFIG_LINKER_USE_PINNED_SECTION)
/* 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>
#endif
/* Needs KEEP() as ENTRY() is given a physical address */
KEEP(*(.text.__start))
*(.text)
*(".text.*")
*(.gnu.linkonce.t.*)
*(.init)
*(.fini)
*(.eini)
#ifndef CONFIG_LINKER_USE_PINNED_SECTION
#include <zephyr/linker/kobject-text.ld>
#endif
MMU_PAGE_ALIGN_PERM
} GROUP_ROM_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
__text_region_end = .;
__text_region_size = __text_region_end - __text_region_start;
__rodata_region_start = .;
#ifndef CONFIG_LINKER_USE_PINNED_SECTION
#include <zephyr/linker/common-rom.ld>
#include <zephyr/linker/thread-local-storage.ld>
#endif
SECTION_PROLOGUE(_RODATA_SECTION_NAME,,)
{
*(.rodata)
*(".rodata.*")
*(.gnu.linkonce.r.*)
#ifndef CONFIG_DYNAMIC_INTERRUPTS
#ifndef CONFIG_LINKER_USE_PINNED_SECTION
#include <zephyr/arch/x86/ia32/scripts/static_intr.ld>
#endif /* !CONFIG_LINKER_USE_PINNED_SECTION */
#endif /* CONFIG_DYNAMIC_INTERRUPTS */
#ifndef CONFIG_LINKER_USE_PINNED_SECTION
/* Located in generated directory. This file is populated by the
* zephyr_linker_sources() Cmake function.
*/
#include <snippets-rodata.ld>
#include <zephyr/linker/kobject-rom.ld>
#endif
} GROUP_ROM_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
#include <zephyr/linker/cplusplus-rom.ld>
MMU_PAGE_ALIGN_PERM
/* ROM ends here, position counter will now be in RAM areas */
__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
*/
/DISCARD/ : {
*(.got.plt)
*(.igot.plt)
*(.got)
*(.igot)
}
/* RAMABLE_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>
#ifdef CONFIG_USERSPACE
/* APP SHARED MEMORY REGION */
#include <app_smem.ld>
_image_ram_start = _app_smem_start;
_app_smem_size = _app_smem_end - _app_smem_start;
_app_smem_num_words = _app_smem_size >> 2;
_app_smem_rom_start = LOADADDR(_APP_SMEM_SECTION_NAME);
#endif /* CONFIG_USERSPACE */
SECTION_PROLOGUE(_BSS_SECTION_NAME, (NOLOAD),)
{
MMU_PAGE_ALIGN_PERM
#if !defined(CONFIG_USERSPACE)
_image_ram_start = .;
#endif
/*
* For performance, BSS section is forced to be both 4 byte aligned and
* a multiple of 4 bytes.
*/
. = ALIGN(4);
__kernel_ram_start = .;
__bss_start = .;
*(.bss)
*(".bss.*")
*(COMMON)
*(".kernel_bss.*")
/*
* As memory is cleared in words only, it is simpler to ensure the BSS
* section ends on a 4 byte boundary. This wastes a maximum of 3 bytes.
*/
. = ALIGN(4);
__bss_end = .;
} GROUP_NOLOAD_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
__bss_num_words = (__bss_end - __bss_start) >> 2;
#include <zephyr/linker/common-noinit.ld>
MMU_PAGE_ALIGN_PERM
SECTION_DATA_PROLOGUE(_DATA_SECTION_NAME,,)
{
__data_ram_start = .;
*(.data)
*(".data.*")
*(".kernel.*")
#ifdef CONFIG_DYNAMIC_INTERRUPTS
#ifndef CONFIG_LINKER_USE_PINNED_SECTION
#include <zephyr/arch/x86/ia32/scripts/dynamic_intr.ld>
#endif /* !CONFIG_LINKER_USE_PINNED_SECTION */
#endif /* CONFIG_DYNAMIC_INTERRUPTS */
/* Located in generated directory. This file is populated by the
* zephyr_linker_sources() Cmake function.
*/
#include <snippets-rwdata.ld>
#ifndef CONFIG_LINKER_USE_PINNED_SECTION
#include <zephyr/arch/x86/ia32/scripts/shared_kernel_pages.ld>
#endif /* !CONFIG_LINKER_USE_PINNED_SECTION */
. = ALIGN(4);
} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
__data_rom_start = LOADADDR(_DATA_SECTION_NAME);
#include <zephyr/linker/cplusplus-ram.ld>
#ifndef CONFIG_LINKER_USE_PINNED_SECTION
#include <zephyr/linker/common-ram.ld>
#include <zephyr/arch/x86/pagetables.ld>
/* Must be last in RAM */
#include <zephyr/linker/kobject-data.ld>
#endif /* !CONFIG_LINKER_USE_PINNED_SECTION */
/* Located in generated directory. This file is populated by the
* zephyr_linker_sources() Cmake function.
*/
#include <snippets-data-sections.ld>
MMU_PAGE_ALIGN
__data_ram_end = .;
/* All unused memory also owned by the kernel for heaps */
__kernel_ram_end = KERNEL_BASE_ADDR + KERNEL_RAM_SIZE;
__kernel_ram_size = __kernel_ram_end - __kernel_ram_start;
_image_ram_end = .;
_image_ram_all = (KERNEL_BASE_ADDR + KERNEL_RAM_SIZE) - _image_ram_start;
z_mapped_end = .;
z_mapped_size = z_mapped_end - z_mapped_start;
_end = .; /* end of image */
GROUP_END(RAMABLE_REGION)
#ifndef LINKER_ZEPHYR_FINAL
/* static interrupts */
SECTION_PROLOGUE(intList,,)
{
KEEP(*(.spurIsr))
KEEP(*(.spurNoErrIsr))
KEEP(*(.intList))
KEEP(*(.gnu.linkonce.intList.*))
} > IDT_LIST
#else
/DISCARD/ :
{
KEEP(*(.spurIsr))
KEEP(*(.spurNoErrIsr))
KEEP(*(.intList))
KEEP(*(.gnu.linkonce.intList.*))
}
#endif
/* Located in generated directory. This file is populated by the
* zephyr_linker_sources() Cmake function.
*/
#include <snippets-sections.ld>
#include <zephyr/linker/debug-sections.ld>
/DISCARD/ : { *(.note.GNU-stack) }
}