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Primary Git Repository for the Zephyr Project. Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures.
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zephyr/soc/espressif/esp32/default_appcpu.ld

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/*
* Copyright (c) 2016 Cadence Design Systems, Inc.
* Copyright (c) 2017 Intel Corporation
* Copyright (c) 2024 Espressif Systems (Shanghai) Co., Ltd.
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/devicetree.h>
#include <zephyr/linker/sections.h>
#include <zephyr/linker/linker-defs.h>
#include <zephyr/linker/linker-tool.h>
#if !defined(CONFIG_BOOTLOADER_MCUBOOT)
#error "APPCPU image must use MCUboot image format."
#endif /* CONFIG_BOOTLOADER_MCUBOOT */
#include "memory.h"
/* User available SRAM memory segments */
appcpu_iram_end = USER_IRAM_END - APPCPU_DRAM_SIZE;
appcpu_iram_org = appcpu_iram_end - APPCPU_IRAM_SIZE;
appcpu_iram_len = APPCPU_IRAM_SIZE;
appcpu_dram_org = SRAM1_DRAM_USER_START;
appcpu_dram_len = APPCPU_DRAM_SIZE;
/* Aliases */
#define ROMABLE_REGION FLASH
#define RODATA_REGION dram0_1_seg
#define RAMABLE_REGION dram0_1_seg
#define IRAM_REGION iram0_1_seg
/* Zephyr macro re-definitions */
#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
/* Flash segments (rodata and text) should be mapped in the virtual address spaces.
* Executing directly from LMA is not possible. */
#undef GROUP_ROM_LINK_IN
#define GROUP_ROM_LINK_IN(vregion, lregion) > RODATA_REGION AT > lregion
/* Make sure new sections have consistent alignment between input and output sections */
#undef SECTION_DATA_PROLOGUE
#define SECTION_DATA_PROLOGUE(name, options, align) name options : ALIGN_WITH_INPUT
#undef SECTION_PROLOGUE
#define SECTION_PROLOGUE SECTION_DATA_PROLOGUE
MEMORY
{
mcuboot_hdr (R): org = 0x0, len = 0x20
metadata (R): org = 0x20, len = 0x20
FLASH (R): org = 0x40, len = FLASH_SIZE - 0x40
iram0_1_seg(RX): org = appcpu_iram_org, len = appcpu_iram_len
dram0_1_seg(RW): org = appcpu_dram_org, len = appcpu_dram_len
#ifdef CONFIG_GEN_ISR_TABLES
IDT_LIST(RW): org = 0x3ebfe010, len = 0x2000
#endif
}
/* Default entry point: */
PROVIDE ( _ResetVector = 0x40000400 );
ENTRY(__appcpu_start)
_rom_store_table = 0;
PROVIDE(_memmap_vecbase_reset = 0x40000450);
PROVIDE(_memmap_reset_vector = 0x40000400);
/* Heap size calculations for APPCPU */
_heap_sentry = BOOTLOADER_DRAM_SEG_START + APPCPU_DRAM_SIZE;
_libc_heap_size = _heap_sentry - _end;
SECTIONS
{
/* Reserve space for MCUboot header in the binary */
.mcuboot_header :
{
QUAD(0x0)
QUAD(0x0)
QUAD(0x0)
QUAD(0x0)
} > mcuboot_hdr
/* Image load table */
.metadata :
{
/* 0. Magic byte for load header */
LONG(0xace637d3)
/* 1. Application entry point address */
KEEP(*(.entry_addr))
/* IRAM metadata:
* 2. Destination address (VMA) for IRAM region
* 3. Flash offset (LMA) for start of IRAM region
* 4. Size of IRAM region
*/
LONG(ADDR(.iram0.vectors))
LONG(LOADADDR(.iram0.vectors))
LONG(_iram_end - _init_start);
/* DRAM metadata:
* 5. Destination address (VMA) for DRAM region
* 6. Flash offset (LMA) for start of DRAM region
* 7. Size of DRAM region
*/
LONG(ADDR(.dram0.data))
LONG(LOADADDR(.dram0.data))
LONG(_data_end - _data_start)
} > metadata
#include <zephyr/linker/rel-sections.ld>
#ifdef CONFIG_LLEXT
#include <zephyr/linker/llext-sections.ld>
#endif
/* --- START OF IRAM --- */
/* Send .iram0 code to iram */
.iram0.vectors : ALIGN(4)
{
/* Vectors go to IRAM */
_init_start = ABSOLUTE(.);
/* Vectors according to builds/RF-2015.2-win32/esp108_v1_2_s5_512int_2/config.html */
. = 0x0;
KEEP(*(.WindowVectors.text));
. = 0x180;
KEEP(*(.Level2InterruptVector.text));
. = 0x1c0;
KEEP(*(.Level3InterruptVector.text));
. = 0x200;
KEEP(*(.Level4InterruptVector.text));
. = 0x240;
KEEP(*(.Level5InterruptVector.text));
. = 0x280;
KEEP(*(.DebugExceptionVector.text));
. = 0x2c0;
KEEP(*(.NMIExceptionVector.text));
. = 0x300;
KEEP(*(.KernelExceptionVector.text));
. = 0x340;
KEEP(*(.UserExceptionVector.text));
. = 0x3C0;
KEEP(*(.DoubleExceptionVector.text));
. = 0x400;
*(.*Vector.literal)
*(.UserEnter.literal);
*(.UserEnter.text);
. = ALIGN (16);
*(.entry.text)
*(.init.literal)
*(.init)
_init_end = ABSOLUTE(.);
_iram_start = ABSOLUTE(.);
} GROUP_DATA_LINK_IN(IRAM_REGION, ROMABLE_REGION)
.iram0.text : ALIGN(4)
{
/* Code marked as running out of IRAM */
_iram_text_start = ABSOLUTE(.);
*(.iram1 .iram1.*)
*(.iram0.literal .iram.literal .iram.text.literal .iram0.text .iram.text)
*libesp32.a:panic.*(.literal .text .literal.* .text.*)
*librtc.a:(.literal .text .literal.* .text.*)
*libsubsys__net__l2__ethernet.a:(.literal .text .literal.* .text.*)
*libsubsys__net__lib__config.a:(.literal .text .literal.* .text.*)
*libsubsys__net__ip.a:(.literal .text .literal.* .text.*)
*libsubsys__net.a:(.literal .text .literal.* .text.*)
*libarch__xtensa__core.a:(.literal .text .literal.* .text.*)
*libkernel.a:(.literal .text .literal.* .text.*)
*libsoc.a:rtc_*.*(.literal .text .literal.* .text.*)
*libsoc.a:cpu_util.*(.literal .text .literal.* .text.*)
*libgcc.a:lib2funcs.*(.literal .text .literal.* .text.*)
*libdrivers__flash.a:flash_esp32.*(.literal .text .literal.* .text.*)
*libzephyr.a:spi_flash_rom_patch.*(.literal .text .literal.* .text.*)
*libzephyr.a:windowspill_asm.*(.literal .text .literal.* .text.*)
*libzephyr.a:log_noos.*(.literal .text .literal.* .text.*)
*libdrivers__timer.a:xtensa_sys_timer.*(.literal .text .literal.* .text.*)
*libzephyr.a:log_core.*(.literal .text .literal.* .text.*)
*libzephyr.a:cbprintf_complete.*(.literal .text .literal.* .text.*)
*libzephyr.a:printk.*(.literal.printk .literal.vprintk .literal.char_out .text.printk .text.vprintk .text.char_out)
*libzephyr.a:log_msg.*(.literal .text .literal.* .text.*)
*libzephyr.a:log_list.*(.literal .text .literal.* .text.*)
*libdrivers__console.a:uart_console.*(.literal.console_out .text.console_out)
*libzephyr.a:log_output.*(.literal .text .literal.* .text.*)
*libzephyr.a:log_backend_uart.*(.literal .text .literal.* .text.*)
*libzephyr.a:loader.*(.literal .text .literal.* .text.*)
*liblib__libc__minimal.a:string.*(.literal .text .literal.* .text.*)
*liblib__libc__newlib.a:string.*(.literal .text .literal.* .text.*)
*libc.a:*(.literal .text .literal.* .text.*)
*libphy.a:( .phyiram .phyiram.*)
*libgcov.a:(.literal .text .literal.* .text.*)
*libnet80211.a:( .wifi0iram .wifi0iram.* .wifislpiram .wifislpiram.*)
*libpp.a:( .wifi0iram .wifi0iram.* .wifislpiram .wifislpiram.* .wifiorslpiram .wifiorslpiram.*)
*libnet80211.a:( .wifirxiram .wifirxiram.* .wifislprxiram .wifislprxiram.*)
*libpp.a:( .wifirxiram .wifirxiram.* .wifislprxiram .wifislprxiram.*)
. = ALIGN(16);
_iram_text_end = ABSOLUTE(.);
_iram_end = ABSOLUTE(.);
} GROUP_DATA_LINK_IN(IRAM_REGION, ROMABLE_REGION)
.flash.text : ALIGN(16)
{
_stext = .;
_text_start = ABSOLUTE(.);
*(.stub .gnu.warning .gnu.linkonce.literal.* .gnu.linkonce.t.*.literal .gnu.linkonce.t.*)
*(.irom0.text) /* catch stray ICACHE_RODATA_ATTR */
*(.fini.literal)
*(.fini)
*(.gnu.version)
*(.literal .text .literal.* .text.*)
/* CPU will try to prefetch up to 16 bytes of
* of instructions. This means that any configuration (e.g. MMU, PMS) must allow
* safe access to up to 16 bytes after the last real instruction, add
* dummy bytes to ensure this
*/
. += 16;
_text_end = ABSOLUTE(.);
_etext = .;
/* Similar to _iram_start, this symbol goes here so it is
* resolved by addr2line in preference to the first symbol in
* the flash.text segment.
*/
. = ALIGN(4);
_flash_cache_start = ABSOLUTE(0);
. = ALIGN(4);
_iram_end = ABSOLUTE(.);
} GROUP_DATA_LINK_IN(IRAM_REGION, ROMABLE_REGION)
/* --- END OF IRAM --- */
/* --- START OF DRAM --- */
.dram0.data :
{
. = ALIGN(16);
__data_start = ABSOLUTE(.);
_data_start = ABSOLUTE(.);
_btdm_data_start = ABSOLUTE(.);
*libbtdm_app.a:(.data .data.*)
. = ALIGN (4);
_btdm_data_end = ABSOLUTE(.);
*(.data)
*(.data.*)
*(.gnu.linkonce.d.*)
*(.data1)
*(.sdata)
*(.sdata.*)
*(.gnu.linkonce.s.*)
*(.sdata2)
*(.sdata2.*)
*(.gnu.linkonce.s2.*)
/* rodata for panic handler(libarch__xtensa__core.a) and all
* dependent functions should be placed in DRAM to avoid issue
* when flash cache is disabled */
*libarch__xtensa__core.a:(.rodata .rodata.*)
*libkernel.a:fatal.*(.rodata .rodata.*)
*libkernel.a:init.*(.rodata .rodata.*)
*libzephyr.a:cbprintf_complete*(.rodata .rodata.*)
*libzephyr.a:log_core.*(.rodata .rodata.*)
*libzephyr.a:log_backend_uart.*(.rodata .rodata.*)
*libzephyr.a:log_output.*(.rodata .rodata.*)
*libzephyr.a:loader.*(.rodata .rodata.*)
*libdrivers__flash.a:flash_esp32.*(.rodata .rodata.*)
*libzephyr.a:spi_flash_rom_patch.*(.rodata .rodata.*)
*libdrivers__serial.a:uart_esp32.*(.rodata .rodata.*)
. = ALIGN(4);
#include <snippets-rwdata.ld>
. = ALIGN(4);
KEEP(*(.jcr))
*(.dram1 .dram1.*)
. = ALIGN(16);
} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
#include <snippets-data-sections.ld>
#include <zephyr/linker/common-ram.ld>
#include <snippets-ram-sections.ld>
#include <zephyr/linker/cplusplus-ram.ld>
#include <zephyr/linker/kobject-data.ld>
#include <zephyr/linker/common-rom/common-rom-logging.ld>
.dram0.rodata : ALIGN(4)
{
_rodata_start = ABSOLUTE(.);
*(.rodata_desc .rodata_desc.*) /* Should be the first. App version info. DO NOT PUT ANYTHING BEFORE IT! */
*(.rodata_custom_desc .rodata_custom_desc.*) /* Should be the second. Custom app version info. DO NOT PUT ANYTHING BEFORE IT! */
__rodata_region_start = ABSOLUTE(.);
. = ALIGN(16);
#include <snippets-rodata.ld>
. = ALIGN(4);
*(EXCLUDE_FILE (
*libarch__xtensa__core.a:*
*libkernel.a:fatal.*
*libkernel.a:init.*
*libzephyr.a:cbprintf_complete*
*libzephyr.a:log_core.*
*libzephyr.a:log_backend_uart.*
*libzephyr.a:log_output.*
*libzephyr.a:loader.*
*libdrivers__serial.a:uart_esp32.*) .rodata)
*(EXCLUDE_FILE (
*libarch__xtensa__core.a:*
*libkernel.a:fatal.*
*libkernel.a:init.*
*libzephyr.a:cbprintf_complete*
*libzephyr.a:log_core.*
*libzephyr.a:log_backend_uart.*
*libzephyr.a:log_output.*
*libzephyr.a:loader.*
*libdrivers__serial.a:uart_esp32.*) .rodata.*)
*(.irom1.text) /* catch stray ICACHE_RODATA_ATTR */
*(.gnu.linkonce.r.*)
*(.rodata1)
__XT_EXCEPTION_TABLE_ = ABSOLUTE(.);
*(.xt_except_table)
*(.gcc_except_table .gcc_except_table.*)
*(.gnu.linkonce.e.*)
*(.gnu.version_r)
. = (. + 3) & ~ 3;
__eh_frame = ABSOLUTE(.);
KEEP(*(.eh_frame))
. = (. + 7) & ~ 3;
/* C++ exception handlers table: */
__XT_EXCEPTION_DESCS_ = ABSOLUTE(.);
*(.xt_except_desc)
*(.gnu.linkonce.h.*)
__XT_EXCEPTION_DESCS_END__ = ABSOLUTE(.);
*(.xt_except_desc_end)
*(.dynamic)
*(.gnu.version_d)
. = ALIGN(4);
__rodata_region_end = ABSOLUTE(.);
/* Literals are also RO data. */
_lit4_start = ABSOLUTE(.);
*(*.lit4)
*(.lit4.*)
*(.gnu.linkonce.lit4.*)
_lit4_end = ABSOLUTE(.);
. = ALIGN(4);
_thread_local_start = ABSOLUTE(.);
*(.tdata)
*(.tdata.*)
*(.tbss)
*(.tbss.*)
*(.rodata_wlog)
*(.rodata_wlog*)
_thread_local_end = ABSOLUTE(.);
. = ALIGN(4);
} GROUP_DATA_LINK_IN(RODATA_REGION, ROMABLE_REGION)
#include <zephyr/linker/cplusplus-rom.ld>
#include <zephyr/linker/common-rom/common-rom-init.ld>
#include <zephyr/linker/common-rom/common-rom-kernel-devices.ld>
#include <zephyr/linker/common-rom/common-rom-ztest.ld>
#include <zephyr/linker/common-rom/common-rom-net.ld>
#include <zephyr/linker/common-rom/common-rom-bt.ld>
#include <zephyr/linker/common-rom/common-rom-debug.ld>
#include <zephyr/linker/common-rom/common-rom-misc.ld>
#include <zephyr/linker/thread-local-storage.ld>
#include <snippets-sections.ld>
/* Create an explicit section at the end of all the data that shall be mapped into drom.
* This is used to calculate the size of the _image_drom_size variable */
.dram0.rodata_end : ALIGN(16)
{
. = ALIGN(4);
_image_rodata_end = ABSOLUTE(.);
} GROUP_DATA_LINK_IN(RODATA_REGION, ROMABLE_REGION)
.dram0.end :
{
__data_end = ABSOLUTE(.);
_data_end = ABSOLUTE(.);
} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
.dram0.noinit (NOLOAD):
{
. = ALIGN (8);
*(.noinit)
*(.noinit.*)
. = ALIGN (8);
} GROUP_LINK_IN(RAMABLE_REGION)
/* Shared RAM */
.dram0.bss (NOLOAD) :
{
. = ALIGN (8);
_bss_start = ABSOLUTE(.); /* required by bluetooth library */
__bss_start = ABSOLUTE(.);
_btdm_bss_start = ABSOLUTE(.);
*libbtdm_app.a:(.bss .bss.* COMMON)
. = ALIGN (4);
_btdm_bss_end = ABSOLUTE(.);
*(.dynsbss)
*(.sbss)
*(.sbss.*)
*(.gnu.linkonce.sb.*)
*(.scommon)
*(.sbss2)
*(.sbss2.*)
*(.gnu.linkonce.sb2.*)
*(.dynbss)
*(.bss)
*(.bss.*)
*(.share.mem)
*(.gnu.linkonce.b.*)
*(COMMON)
. = ALIGN (8);
__bss_end = ABSOLUTE(.);
} GROUP_LINK_IN(RAMABLE_REGION)
/* Provide total SRAM usage, including IRAM and DRAM */
_image_ram_start = __rodata_region_start;
#include <zephyr/linker/ram-end.ld>
_image_ram_size += _iram_end - _init_start;
ASSERT(((__bss_end - ORIGIN(dram0_1_seg)) <= LENGTH(dram0_1_seg)),
"DRAM segment data does not fit.")
/* --- END OF DRAM --- */
#ifdef CONFIG_GEN_ISR_TABLES
#include <zephyr/linker/intlist.ld>
#endif
#include <zephyr/linker/debug-sections.ld>
.xtensa.info 0 : { *(.xtensa.info) }
.xt.insn 0 :
{
KEEP (*(.xt.insn))
KEEP (*(.gnu.linkonce.x.*))
}
.xt.prop 0 :
{
KEEP (*(.xt.prop))
KEEP (*(.xt.prop.*))
KEEP (*(.gnu.linkonce.prop.*))
}
.xt.lit 0 :
{
KEEP (*(.xt.lit))
KEEP (*(.xt.lit.*))
KEEP (*(.gnu.linkonce.p.*))
}
.xt.profile_range 0 :
{
KEEP (*(.xt.profile_range))
KEEP (*(.gnu.linkonce.profile_range.*))
}
.xt.profile_ranges 0 :
{
KEEP (*(.xt.profile_ranges))
KEEP (*(.gnu.linkonce.xt.profile_ranges.*))
}
.xt.profile_files 0 :
{
KEEP (*(.xt.profile_files))
KEEP (*(.gnu.linkonce.xt.profile_files.*))
}
}
ASSERT(((_iram_end - ORIGIN(iram0_1_seg)) <= LENGTH(iram0_1_seg)),
"IRAM0 segment data does not fit.")