mirror of
https://github.com/espressif/esp-idf.git
synced 2026-10-01 18:50:34 +03:00
feat(bootloader): split linker scripts into memory and sections
Replaced per-target bootloader.ld.in with bootloader.memory.ld.in and bootloader.sections.ld.in. Common code moved to file bootloader.sections.common.ld Unify ESP32-P4 ECO4- and ECO4+ linker scripts into one shared script Revision-specific code is selected with CONFIG_ESP32P4_SELECTS_REV_LESS_V3
This commit is contained in:
Alexey Lapshin
@@ -1,281 +0,0 @@
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/*
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* SPDX-FileCopyrightText: 2021-2025 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "sdkconfig.h"
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/*
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Linker file used to link the bootloader.
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*/
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/* Simplified memory map for the bootloader
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The main purpose is to make sure the bootloader can load into main memory
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without overwriting itself.
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*/
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MEMORY
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{
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/* IRAM POOL1, used for APP CPU cache. Bootloader runs from here during the final stage of loading the app because APP CPU is still held in reset, the main app enables APP CPU cache */
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iram_loader_seg (RWX) : org = 0x40078000, len = 0x8000 /* 32KB, APP CPU cache */
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/* 63kB, IRAM. We skip the first 1k to prevent the entry point being
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placed into the same range as exception vectors in the app.
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This leads to idf_monitor decoding ROM bootloader "entry 0x40080xxx"
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message as one of the exception vectors, which looks scary to users.
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*/
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iram_seg (RWX) : org = 0x40080400, len = 0xfc00
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/* 64k at the end of DRAM, after ROM bootloader stack */
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dram_seg (RW) : org = 0x3FFF0000, len = 0x6000
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}
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/* Default entry point: */
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ENTRY(call_start_cpu0);
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SECTIONS
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{
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.iram_loader.text :
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{
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. = ALIGN (16);
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_loader_text_start = ABSOLUTE(.);
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*(.stub .gnu.warning .gnu.linkonce.literal.* .gnu.linkonce.t.*.literal .gnu.linkonce.t.*)
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*(.iram1 .iram1.*) /* catch stray IRAM_ATTR */
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*liblog.a:(.literal .text .literal.* .text.*)
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/* we use either libgcc or compiler-rt, so put similar entries for them here */
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*libgcc.a:(.literal .text .literal.* .text.*)
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*libclang_rt.builtins.a:(.literal .text .literal.* .text.*)
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*libbootloader_support.a:bootloader_clock_loader.*(.literal .text .literal.* .text.*)
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*libbootloader_support.a:bootloader_common_loader.*(.literal .text .literal.* .text.*)
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*libbootloader_support.a:bootloader_flash.*(.literal .text .literal.* .text.*)
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*libbootloader_support.a:bootloader_random.*(.literal .text .literal.* .text.*)
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*libbootloader_support.a:bootloader_random*.*(.literal.bootloader_random_disable .text.bootloader_random_disable)
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*libesp_common.a:fpga_overrides.*(.literal.bootloader_fill_random .text.bootloader_fill_random)
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*libbootloader_support.a:bootloader_efuse.*(.literal .text .literal.* .text.*)
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*libbootloader_support.a:bootloader_utility.*(.literal .text .literal.* .text.*)
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*libbootloader_support.a:bootloader_sha.*(.literal .text .literal.* .text.*)
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*libbootloader_support.a:bootloader_console_loader.*(.literal .text .literal.* .text.*)
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*libbootloader_support.a:bootloader_panic.*(.literal .text .literal.* .text.*)
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*libbootloader_support.a:bootloader_soc.*(.literal .text .literal.* .text.*)
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*libbootloader_support.a:esp_image_format.*(.literal .text .literal.* .text.*)
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*libbootloader_support.a:flash_encrypt.*(.literal .text .literal.* .text.*)
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*libbootloader_support.a:flash_encryption_secure_features.*(.literal .text .literal.* .text.*)
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*libbootloader_support.a:flash_partitions.*(.literal .text .literal.* .text.*)
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*libbootloader_support.a:secure_boot.*(.literal .text .literal.* .text.*)
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*libbootloader_support.a:secure_boot_secure_features.*(.literal .text .literal.* .text.*)
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*libbootloader_support.a:secure_boot_signatures_bootloader.*(.literal .text .literal.* .text.*)
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*libmicro-ecc.a:*.*(.literal .text .literal.* .text.*)
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*libspi_flash.a:*.*(.literal .text .literal.* .text.*)
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*libhal.a:mmu_hal.*(.literal .text .literal.* .text.*)
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*libhal.a:efuse_hal.*(.literal .text .literal.* .text.*)
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*libesp_hal_wdt.a:wdt_hal_iram.*(.literal .text .literal.* .text.*)
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*libesp_hw_support.a:rtc_clk.*(.literal .text .literal.* .text.*)
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*libesp_hw_support.a:rtc_time.*(.literal .text .literal.* .text.*)
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*libefuse.a:*.*(.literal .text .literal.* .text.*)
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*libesp_rom.a:*.*(.literal .text .literal.* .text.*)
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*(.fini.literal)
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*(.fini)
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*(.gnu.version)
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_loader_text_end = ABSOLUTE(.);
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} > iram_loader_seg
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.iram.text :
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{
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. = ALIGN (16);
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*(.entry.text)
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*(.init.literal)
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*(.init)
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} > iram_seg
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/* Shared RAM */
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.dram0.bss (NOLOAD) :
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{
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. = ALIGN (8);
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_dram_start = ABSOLUTE(.);
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_bss_start = ABSOLUTE(.);
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*(.dynsbss)
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*(.sbss)
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*(.sbss.*)
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*(.gnu.linkonce.sb.*)
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*(.scommon)
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*(.sbss2)
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*(.sbss2.*)
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*(.gnu.linkonce.sb2.*)
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*(.dynbss)
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*(.bss)
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*(.bss.*)
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*(.gnu.linkonce.b.*)
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*(COMMON)
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. = ALIGN (8);
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_bss_end = ABSOLUTE(.);
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} >dram_seg
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.dram0.bootdesc : ALIGN(0x10)
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{
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_data_start = ABSOLUTE(.);
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*(.data_bootloader_desc .data_bootloader_desc.*) /* Should be the first. Bootloader version info. DO NOT PUT ANYTHING BEFORE IT! */
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} > dram_seg
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.dram0.data : ALIGN(0x10)
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{
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*(.dram1 .dram1.*) /* catch stray DRAM_ATTR */
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*(.data)
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*(.data.*)
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*(.gnu.linkonce.d.*)
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*(.data1)
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*(.sdata)
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*(.sdata.*)
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*(.gnu.linkonce.s.*)
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*(.gnu.linkonce.s2.*)
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*(.jcr)
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_data_end = ABSOLUTE(.);
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} >dram_seg
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.dram0.rodata :
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{
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_rodata_start = ABSOLUTE(.);
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*(.rodata)
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*(.rodata.*)
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*(.gnu.linkonce.r.*)
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*(.rodata1)
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*(.sdata2 .sdata2.*)
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__XT_EXCEPTION_TABLE_ = ABSOLUTE(.);
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*(.xt_except_table)
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*(.gcc_except_table)
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*(.gnu.linkonce.e.*)
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*(.gnu.version_r)
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*(.eh_frame_hdr)
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*(.eh_frame)
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. = (. + 3) & ~ 3;
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/* C++ constructor and destructor tables, properly ordered: */
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__init_array_start = ABSOLUTE(.);
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KEEP (*crtbegin.*(.ctors))
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KEEP (*(EXCLUDE_FILE (*crtend.*) .ctors))
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KEEP (*(SORT(.ctors.*)))
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KEEP (*(.ctors))
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__init_array_end = ABSOLUTE(.);
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KEEP (*crtbegin.*(.dtors))
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KEEP (*(EXCLUDE_FILE (*crtend.*) .dtors))
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KEEP (*(SORT(.dtors.*)))
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KEEP (*(.dtors))
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/* C++ exception handlers table: */
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__XT_EXCEPTION_DESCS_ = ABSOLUTE(.);
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*(.xt_except_desc)
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*(.gnu.linkonce.h.*)
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__XT_EXCEPTION_DESCS_END__ = ABSOLUTE(.);
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*(.xt_except_desc_end)
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*(.dynamic)
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*(.gnu.version_d)
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_rodata_end = ABSOLUTE(.);
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/* Literals are also RO data. */
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_lit4_start = ABSOLUTE(.);
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*(*.lit4)
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*(.lit4.*)
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*(.gnu.linkonce.lit4.*)
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_lit4_end = ABSOLUTE(.);
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. = ALIGN(4);
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_dram_end = ABSOLUTE(.);
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} >dram_seg
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.iram.text :
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{
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_stext = .;
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_text_start = ABSOLUTE(.);
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*(.literal .text .literal.* .text.* .stub .gnu.warning .gnu.linkonce.literal.* .gnu.linkonce.t.*.literal .gnu.linkonce.t.*)
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*(.iram .iram.*) /* catch stray IRAM_ATTR */
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*(.fini.literal)
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*(.fini)
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*(.gnu.version)
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/** CPU will try to prefetch up to 16 bytes of
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* of instructions. This means that any configuration (e.g. MMU, PMS) must allow
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* safe access to up to 16 bytes after the last real instruction, add
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* dummy bytes to ensure this
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*/
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. += 16;
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_text_end = ABSOLUTE(.);
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_etext = .;
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} > iram_seg
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/** This section will be used by the debugger and disassembler to get more information
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* about raw data present in the code.
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* Indeed, it may be required to add some padding at some points in the code
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* in order to align a branch/jump destination on a particular bound.
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* Padding these instructions will generate null bytes that shall be
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* interpreted as data, and not code by the debugger or disassembler.
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* This section will only be present in the ELF file, not in the final binary
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* For more details, check GCC-212
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*/
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.xt.prop 0 :
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{
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KEEP (*(.xt.prop .xt.prop.* .gnu.linkonce.prop.*))
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}
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.xt.lit 0 :
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{
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KEEP (*(.xt.lit .xt.lit.* .gnu.linkonce.p.*))
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}
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.xtensa.info 0: { *(.xtensa.info) }
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/* DWARF 1 */
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.debug 0 : { *(.debug) }
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.line 0 : { *(.line) }
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/* GNU DWARF 1 extensions */
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.debug_srcinfo 0 : { *(.debug_srcinfo) }
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.debug_sfnames 0 : { *(.debug_sfnames) }
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/* DWARF 1.1 and DWARF 2 */
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.debug_aranges 0 : { *(.debug_aranges) }
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.debug_pubnames 0 : { *(.debug_pubnames) }
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/* DWARF 2 */
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.debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) }
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.debug_abbrev 0 : { *(.debug_abbrev) }
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.debug_line 0 : { *(.debug_line) }
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.debug_frame 0 : { *(.debug_frame) }
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.debug_str 0 : { *(.debug_str) }
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.debug_loc 0 : { *(.debug_loc) }
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.debug_macinfo 0 : { *(.debug_macinfo) }
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.debug_pubtypes 0 : { *(.debug_pubtypes) }
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/* DWARF 3 */
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.debug_ranges 0 : { *(.debug_ranges) }
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/* SGI/MIPS DWARF 2 extensions */
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.debug_weaknames 0 : { *(.debug_weaknames) }
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.debug_funcnames 0 : { *(.debug_funcnames) }
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.debug_typenames 0 : { *(.debug_typenames) }
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.debug_varnames 0 : { *(.debug_varnames) }
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/* GNU DWARF 2 extensions */
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.debug_gnu_pubnames 0 : { *(.debug_gnu_pubnames) }
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.debug_gnu_pubtypes 0 : { *(.debug_gnu_pubtypes) }
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/* DWARF 4 */
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.debug_types 0 : { *(.debug_types) }
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/* DWARF 5 */
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.debug_addr 0 : { *(.debug_addr) }
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.debug_line_str 0 : { *(.debug_line_str) }
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.debug_loclists 0 : { *(.debug_loclists) }
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.debug_macro 0 : { *(.debug_macro) }
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.debug_names 0 : { *(.debug_names) }
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.debug_rnglists 0 : { *(.debug_rnglists) }
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.debug_str_offsets 0 : { *(.debug_str_offsets) }
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.comment 0 : { *(.comment) }
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.note.GNU-stack 0: { *(.note.GNU-stack) }
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/**
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* This section is not included in the binary image; it is only present in the ELF file.
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* It is used to keep certain symbols in the ELF file.
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*/
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.noload 0 (INFO) :
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{
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/* Reserve first 4 bytes as zero for vars pointed to NULL */
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. = 0;
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LONG(0);
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_noload_keep_in_elf_start = ABSOLUTE(.);
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KEEP(*(.noload_keep_in_elf .noload_keep_in_elf.*))
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_noload_keep_in_elf_end = ABSOLUTE(.);
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}
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}
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@@ -0,0 +1,34 @@
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/*
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* SPDX-FileCopyrightText: 2021-2025 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "sdkconfig.h"
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/*
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Linker file used to link the bootloader.
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*/
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/* Simplified memory map for the bootloader
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The main purpose is to make sure the bootloader can load into main memory
|
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without overwriting itself.
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*/
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MEMORY
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{
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/* IRAM POOL1, used for APP CPU cache. Bootloader runs from here during the final stage of loading the app because APP CPU is still held in reset, the main app enables APP CPU cache */
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iram_loader_seg (RWX) : org = 0x40078000, len = 0x8000 /* 32KB, APP CPU cache */
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/* 63kB, IRAM. We skip the first 1k to prevent the entry point being
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placed into the same range as exception vectors in the app.
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This leads to idf_monitor decoding ROM bootloader "entry 0x40080xxx"
|
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message as one of the exception vectors, which looks scary to users.
|
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*/
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iram_seg (RWX) : org = 0x40080400, len = 0xfc00
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/* 64k at the end of DRAM, after ROM bootloader stack */
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dram_seg (RW) : org = 0x3FFF0000, len = 0x6000
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}
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/* Default entry point: */
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@@ -0,0 +1,41 @@
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/*
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* SPDX-FileCopyrightText: 2026 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#define IRAM_LOADER_TEXT_INPUTS \
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*liblog.a:(.literal .text .literal.* .text.*) \
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/* we use either libgcc or compiler-rt, so put similar entries for them here */ \
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*libgcc.a:(.literal .text .literal.* .text.*) \
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*libclang_rt.builtins.a:(.literal .text .literal.* .text.*) \
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*libbootloader_support.a:bootloader_clock_loader.*(.literal .text .literal.* .text.*) \
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*libbootloader_support.a:bootloader_common_loader.*(.literal .text .literal.* .text.*) \
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*libbootloader_support.a:bootloader_flash.*(.literal .text .literal.* .text.*) \
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*libbootloader_support.a:bootloader_random.*(.literal .text .literal.* .text.*) \
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*libbootloader_support.a:bootloader_random*.*(.literal.bootloader_random_disable .text.bootloader_random_disable) \
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*libesp_common.a:fpga_overrides.*(.literal.bootloader_fill_random .text.bootloader_fill_random) \
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*libbootloader_support.a:bootloader_efuse.*(.literal .text .literal.* .text.*) \
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*libbootloader_support.a:bootloader_utility.*(.literal .text .literal.* .text.*) \
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*libbootloader_support.a:bootloader_sha.*(.literal .text .literal.* .text.*) \
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*libbootloader_support.a:bootloader_console_loader.*(.literal .text .literal.* .text.*) \
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*libbootloader_support.a:bootloader_panic.*(.literal .text .literal.* .text.*) \
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*libbootloader_support.a:bootloader_soc.*(.literal .text .literal.* .text.*) \
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*libbootloader_support.a:esp_image_format.*(.literal .text .literal.* .text.*) \
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*libbootloader_support.a:flash_encrypt.*(.literal .text .literal.* .text.*) \
|
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*libbootloader_support.a:flash_encryption_secure_features.*(.literal .text .literal.* .text.*) \
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*libbootloader_support.a:flash_partitions.*(.literal .text .literal.* .text.*) \
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*libbootloader_support.a:secure_boot.*(.literal .text .literal.* .text.*) \
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*libbootloader_support.a:secure_boot_secure_features.*(.literal .text .literal.* .text.*) \
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*libbootloader_support.a:secure_boot_signatures_bootloader.*(.literal .text .literal.* .text.*) \
|
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*libmicro-ecc.a:*.*(.literal .text .literal.* .text.*) \
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*libspi_flash.a:*.*(.literal .text .literal.* .text.*) \
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*libhal.a:mmu_hal.*(.literal .text .literal.* .text.*) \
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*libhal.a:efuse_hal.*(.literal .text .literal.* .text.*) \
|
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*libesp_hal_wdt.a:wdt_hal_iram.*(.literal .text .literal.* .text.*) \
|
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*libesp_hw_support.a:rtc_clk.*(.literal .text .literal.* .text.*) \
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*libesp_hw_support.a:rtc_time.*(.literal .text .literal.* .text.*) \
|
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*libefuse.a:*.*(.literal .text .literal.* .text.*) \
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*libesp_rom.a:*.*(.literal .text .literal.* .text.*)
|
||||
|
||||
#include "bootloader.sections.common.ld"
|
||||
Reference in New Issue
Block a user