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cpu/esp32: add linker scripts for ESP32-C3

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This commit is contained in:
Gunar Schorcht 2022-03-21 02:26:10 +01:00
parent 0ddb6022f3
commit 3c3bc1d4ce
2 changed files with 689 additions and 0 deletions
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81
cpu/esp32/ld/esp32c3/memory.ld Normal file
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/*
* SPDX-FileCopyrightText: 2021 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
/**
* ESP32-C3 Linker Script Memory Layout
* This file describes the memory layout (memory blocks) by virtual memory addresses.
* This linker script is passed through the C preprocessor to include configuration options.
* Please use preprocessor features sparingly!
* Restrict to simple macros with numeric values, and/or #if/#endif blocks.
*/
/*
* Automatically generated file. DO NOT EDIT.
* Espressif IoT Development Framework (ESP-IDF) Configuration Header
*/
/* List of deprecated options */
/*
* SPDX-FileCopyrightText: 2021 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
/* CPU instruction prefetch padding size for flash mmap scenario */
_esp_flash_mmap_prefetch_pad_size = 16;
/* CPU instruction prefetch padding size for memory protection scenario */
_esp_memprot_prefetch_pad_size = 16;
/* Memory alignment size for PMS */
_esp_memprot_align_size = 512;
MEMORY
{
/**
* All these values assume the flash cache is on, and have the blocks this uses subtracted from the length
* of the various regions. The 'data access port' dram/drom regions map to the same iram/irom regions but
* are connected to the data port of the CPU and eg allow byte-wise access.
*/
/* IRAM for PRO CPU. */
iram0_0_seg (RX) : org = (0x4037C000 + 0x4000), len = 0x403D0000 - (0x4037C000 - 0x3FC7C000) - (0x3FC7C000 + 0x4000)
/* Flash mapped instruction data */
iram0_2_seg (RX) : org = 0x42000020, len = 0x800000-0x20
/**
* (0x20 offset above is a convenience for the app binary image generation.
* Flash cache has 64KB pages. The .bin file which is flashed to the chip
* has a 0x18 byte file header, and each segment has a 0x08 byte segment
* header. Setting this offset makes it simple to meet the flash cache MMU's
* constraint that (paddr % 64KB == vaddr % 64KB).)
*/
/**
* Shared data RAM, excluding memory reserved for ROM bss/data/stack.
* Enabling Bluetooth & Trace Memory features in menuconfig will decrease the amount of RAM available.
*/
dram0_0_seg (RW) : org = (0x3FC7C000 + 0x4000), len = 0x403D0000 - (0x4037C000 - 0x3FC7C000) - (0x3FC7C000 + 0x4000)
/* Flash mapped constant data */
drom0_0_seg (R) : org = 0x3C000020, len = 0x800000-0x20
/* (See iram0_2_seg for meaning of 0x20 offset in the above.) */
/**
* RTC fast memory (executable). Persists over deep sleep.
*/
rtc_iram_seg(RWX) : org = 0x50000000, len = 0x2000 - 0
}
_static_data_end = _bss_end;
/* Heap ends at top of dram0_0_seg */
_heap_end = 0x40000000;
_data_seg_org = ORIGIN(rtc_data_seg);
/**
* The lines below define location alias for .rtc.data section
* As C3 only has RTC fast memory, this is not configurable like on other targets
*/
REGION_ALIAS("rtc_data_seg", rtc_iram_seg );
REGION_ALIAS("rtc_slow_seg", rtc_iram_seg );
REGION_ALIAS("rtc_data_location", rtc_iram_seg );
REGION_ALIAS("default_code_seg", iram0_2_seg);
REGION_ALIAS("default_rodata_seg", drom0_0_seg);
/**
* If rodata default segment is placed in `drom0_0_seg`, then flash's first rodata section must
* also be first in the segment.
*/
/* TODO
ASSERT(_rodata_start == ORIGIN(default_rodata_seg),
".flash.appdesc section must be placed at the beginning of the rodata segment.")
*/

608
cpu/esp32/ld/esp32c3/sections.ld Normal file
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/* Automatically generated file; DO NOT EDIT */
/* Espressif IoT Development Framework Linker Script */
/* Generated from: esp-idf/components/esp_system/ld/esp32c3/sections.ld.in */
/*
* SPDX-FileCopyrightText: 2021 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
/* Default entry point */
ENTRY(call_start_cpu0);
SECTIONS
{
/**
* RTC fast memory holds RTC wake stub code,
* including from any source file named rtc_wake_stub*.c
*/
.rtc.text :
{
. = ALIGN(4);
_rtc_fast_start = ABSOLUTE(.);
*(.rtc.literal .rtc.text .rtc.text.*)
*rtc_wake_stub*.*(.literal .text .literal.* .text.*)
*(.rtc_text_end_test)
/* 16B padding for possible CPU prefetch and 4B alignment for PMS split lines */
. += _esp_memprot_prefetch_pad_size;
. = ALIGN(4);
_rtc_text_end = ABSOLUTE(.);
} > rtc_iram_seg
/**
* This section located in RTC FAST Memory area.
* It holds data marked with RTC_FAST_ATTR attribute.
* See the file "esp_attr.h" for more information.
*/
.rtc.force_fast :
{
. = ALIGN(4);
_rtc_force_fast_start = ABSOLUTE(.);
_coredump_rtc_fast_start = ABSOLUTE(.);
*(.rtc.fast.coredump .rtc.fast.coredump.*)
_coredump_rtc_fast_end = ABSOLUTE(.);
*(.rtc.force_fast .rtc.force_fast.*)
. = ALIGN(4) ;
_rtc_force_fast_end = ABSOLUTE(.);
} > rtc_data_seg
/**
* RTC data section holds RTC wake stub
* data/rodata, including from any source file
* named rtc_wake_stub*.c and the data marked with
* RTC_DATA_ATTR, RTC_RODATA_ATTR attributes.
*/
.rtc.data :
{
_rtc_data_start = ABSOLUTE(.);
_coredump_rtc_start = ABSOLUTE(.);
*(.rtc.coredump .rtc.coredump.*)
_coredump_rtc_end = ABSOLUTE(.);
*(.rtc.data .rtc.data.*)
*(.rtc.rodata .rtc.rodata.*)
*rtc_wake_stub*.*(.data .rodata .data.* .rodata.* .bss .bss.*)
_rtc_data_end = ABSOLUTE(.);
} > rtc_data_location
/* RTC bss, from any source file named rtc_wake_stub*.c */
.rtc.bss (NOLOAD) :
{
/* part that is initialized if not waking up from deep sleep */
_rtc_bss_start = ABSOLUTE(.);
*rtc_wake_stub*.*(.bss .bss.*)
*rtc_wake_stub*.*(COMMON)
_rtc_bss_end = ABSOLUTE(.);
/* part that saves some data for rtc periph module, this part is
only initialized at power on reset */
_rtc_bss_rtc_start = ABSOLUTE(.);
*(.rtc.bss .rtc.bss.*)
_rtc_bss_rtc_end = ABSOLUTE(.);
} > rtc_data_location
/**
* This section holds data that should not be initialized at power up
* and will be retained during deep sleep.
* User data marked with RTC_NOINIT_ATTR will be placed
* into this section. See the file "esp_attr.h" for more information.
*/
.rtc_noinit (NOLOAD):
{
. = ALIGN(4);
_rtc_noinit_start = ABSOLUTE(.);
*(.rtc_noinit .rtc_noinit.*)
. = ALIGN(4) ;
_rtc_noinit_end = ABSOLUTE(.);
} > rtc_data_location
/**
* This section located in RTC SLOW Memory area.
* It holds data marked with RTC_SLOW_ATTR attribute.
* See the file "esp_attr.h" for more information.
*/
.rtc.force_slow :
{
. = ALIGN(4);
_rtc_force_slow_start = ABSOLUTE(.);
*(.rtc.force_slow .rtc.force_slow.*)
. = ALIGN(4) ;
_rtc_force_slow_end = ABSOLUTE(.);
} > rtc_slow_seg
/* Get size of rtc slow data based on rtc_data_location alias */
_rtc_slow_length = (ORIGIN(rtc_slow_seg) == ORIGIN(rtc_data_location))
? (_rtc_force_slow_end - _rtc_data_start)
: (_rtc_force_slow_end - _rtc_force_slow_start);
_rtc_fast_length = (ORIGIN(rtc_slow_seg) == ORIGIN(rtc_data_location))
? (_rtc_force_fast_end - _rtc_fast_start)
: (_rtc_noinit_end - _rtc_fast_start);
ASSERT((_rtc_slow_length <= LENGTH(rtc_slow_seg)),
"RTC_SLOW segment data does not fit.")
ASSERT((_rtc_fast_length <= LENGTH(rtc_data_seg)),
"RTC_FAST segment data does not fit.")
.iram0.text :
{
_iram_start = ABSOLUTE(.);
/* Vectors go to start of IRAM */
ASSERT(ABSOLUTE(.) % 0x100 == 0, "vector address must be 256 byte aligned");
KEEP(*(.exception_vectors.text));
. = ALIGN(4);
_invalid_pc_placeholder = ABSOLUTE(.);
/* Code marked as running out of IRAM */
_iram_text_start = ABSOLUTE(.);
*(.iram1 .iram1.*)
/* parts of RIOT that should run in IRAM */
*core/*(.literal .text .literal.* .text.*)
*esp_common_periph/flash.*(.literal .text .literal.* .text.*)
*esp_common/thread_arch.*(.literal .text .literal.* .text.*)
*esp_freertos_common/*(.literal .text .literal.* .text.*)
/* parts of ESP-IDF that should run in IRAM */
/* find components/ -type f -name linker.lf -exec grep "(noflash)" {} \; -print */
/* find components/ -type f -name linker.lf -exec grep "(noflash_text)" {} \; -print */
*components/app_trace/app_trace.*(.literal .literal.* .text .text.*)
*components/app_trace/app_trace_util.*(.literal .literal.* .text .text.*)
*components/esp_event/default_event_loop.*(.literal.esp_event_isr_post .text.esp_event_isr_post)
*components/esp_event/esp_event.*(.literal.esp_event_isr_post_to .text.esp_event_isr_post_to)
*components/esp_hw_support/cpu_util.*(.literal .literal.* .text .text.*)
*components/esp_hw_support/*/rtc_clk.*(.literal .literal.* .text .text.*)
*components/esp_hw_support/*/rtc_init.*(.literal.rtc_vddsdio_set_config .text.rtc_vddsdio_set_config)
*components/esp_hw_support/*/rtc_pm.*(.literal .literal.* .text .text.*)
*components/esp_hw_support/*/rtc_sleep.*(.literal .literal.* .text .text.*)
*components/esp_hw_support/*/rtc_time.*(.literal .literal.* .text .text.*)
*components/esp_hw_support/*/rtc_wdt.*(.literal .literal.* .text .text.*)
*components/esp_ringbuf/*(.literal .literal.* .text .text.*)
*components/esp_rom/esp_rom_spiflash.*(.literal .literal.* .text .text.*)
*components/esp_system/esp_err.*(.literal .literal.* .text .text.*)
*components/esp_system/esp_system.*(.literal.esp_system_abort .text.esp_system_abort)
*components/esp_system/ubsan.*(.literal .literal.* .text .text.*)
*libgcc.a:_divsf3.*(.literal .literal.* .text .text.*)
*libgcc.a:lib2funcs.*(.literal .literal.* .text .text.*)
*libgcc.a:save-restore.*(.literal .literal.* .text .text.*)
*libgcov.a:(.literal .literal.* .text .text.*)
*components/hal/cpu_hal.*(.literal .literal.* .text .text.*)
*components/hal/i2c_hal_iram.*(.literal .literal.* .text .text.*)
*components/hal/ledc_hal_iram.*(.literal .literal.* .text .text.*)
*components/hal/soc_hal.*(.literal .literal.* .text .text.*)
*components/hal/spi_flash_encrypt_hal_iram.*(.literal .literal.* .text .text.*)
*components/hal/spi_flash_hal_gpspi.*(.literal .literal.* .text .text.*)
*components/hal/spi_flash_hal_iram.*(.literal .literal.* .text .text.*)
*components/hal/spi_hal_iram.*(.literal .literal.* .text .text.*)
*components/hal/spi_slave_hal_iram.*(.literal .literal.* .text .text.*)
*components/hal/systimer_hal.*(.literal .literal.* .text .text.*)
*components/hal/twai_hal.*(.literal .literal.* .text .text.*)
*components/hal/uart_hal.*(.literal .literal.* .text .text.*)
*components/hal/wdt_hal_iram.*(.literal .literal.* .text .text.*)
*components/heap/heap_tlsf.*(.literal .literal.* .text .text.*)
*components/heap/multi_heap.*(.literal .literal.* .text .text.*)
*esp-idf/esp_idf_support.*(.literal.esp_log_write .text.esp_log_write)
*libnet80211.a:(.wifi0iram .wifi0iram.*)
*libnet80211.a:(.wifirxiram .wifirxiram.*)
*libnet80211.a:(.wifislprxiram .wifislprxiram.*)
*components/newlib/abort.*(.literal .literal.* .text .text.*)
*components/newlib/assert.*(.literal .literal.* .text .text.*)
*components/newlib/heap.*(.literal .literal.* .text .text.*)
*components/newlib/stdatomic.*(.literal .literal.* .text .text.*)
*libpp.a:(.wifi0iram .wifi0iram.*)
*libpp.a:(.wifiorslpiram .wifiorslpiram.*)
*libpp.a:(.wifirxiram .wifirxiram.*)
*libpp.a:(.wifislprxiram .wifislprxiram.*)
*librtc.a:(.literal .literal.* .text .text.*)
*components/soc/lldesc.*(.literal .literal.* .text .text.*)
*components/spi_flash/memspi_host_driver.*(.literal .literal.* .text .text.*)
*components/spi_flash/spi_flash_chip_boya.*(.literal .literal.* .text .text.*)
*components/spi_flash/spi_flash_chip_gd.*(.literal .literal.* .text .text.*)
*components/spi_flash/spi_flash_chip_generic.*(.literal .literal.* .text .text.*)
*components/spi_flash/spi_flash_chip_issi.*(.literal .literal.* .text .text.*)
*components/spi_flash/spi_flash_chip_mxic.*(.literal .literal.* .text .text.*)
*components/spi_flash/spi_flash_chip_mxic_opi.*(.literal .literal.* .text .text.*)
*components/spi_flash/spi_flash_chip_th.*(.literal .literal.* .text .text.*)
*components/spi_flash/spi_flash_chip_winbond.*(.literal .literal.* .text .text.*)
*components/spi_flash/*/spi_flash_rom_patch.*(.literal .literal.* .text .text.*)
*components/spi_flash/spi_flash_timing_tuning.*(.literal .literal.* .text .text.*)
*components/spi_flash/spi_timing_config.*(.literal .literal.* .text .text.*)
*components/riscv/interrupt.*(.literal .literal.* .text .text.*)
*components/riscv/vectors.*(.literal .literal.* .text .text.*)
} > iram0_0_seg
/**
* This section is required to skip .iram0.text area because iram0_0_seg and
* dram0_0_seg reflect the same address space on different buses.
*/
.dram0.dummy (NOLOAD):
{
. = ORIGIN(dram0_0_seg) + _iram_end - _iram_start;
} > dram0_0_seg
.dram0.data :
{
_data_start = ABSOLUTE(.);
*(.gnu.linkonce.d.*)
*(.data1)
__global_pointer$ = . + 0x800;
*(.sdata)
*(.sdata.*)
KEEP (*(SORT(.xfa.*)))
*(.gnu.linkonce.s.*)
*(.sdata2)
*(.sdata2.*)
*(.gnu.linkonce.s2.*)
*(.jcr)
_esp_system_init_fn_array_start = ABSOLUTE(.);
KEEP (*(SORT(.esp_system_init_fn) SORT(.esp_system_init_fn.*)))
_esp_system_init_fn_array_end = ABSOLUTE(.);
*(EXCLUDE_FILE(*libbt.a *libbtdm_app.a *libnimble.a) .data EXCLUDE_FILE(*libbt.a *libbtdm_app.a *libnimble.a) .data.*)
*(.dram1 .dram1.*)
_coredump_dram_start = ABSOLUTE(.);
*(.dram1.coredump .dram1.coredump.*)
_coredump_dram_end = ABSOLUTE(.);
*components/app_trace/app_trace.*(.rodata .rodata.*)
*components/app_trace/app_trace_util.*(.rodata .rodata.*)
_bt_data_start = ABSOLUTE(.);
*libbt.a:(.data .data.*)
. = ALIGN(4);
_bt_data_end = ABSOLUTE(.);
_btdm_data_start = ABSOLUTE(.);
*libbtdm_app.a:(.data .data.*)
. = ALIGN(4);
_btdm_data_end = ABSOLUTE(.);
/* find components/ -type f -name linker.lf -exec grep "(noflash)" {} \; -print */
*components/esp_hw_support/port/*/rtc_clk.*(.rodata .rodata.*)
*components/esp_rom/esp_rom_spiflash.*(.rodata .rodata.*)
*components/esp_system/esp_err.*(.rodata .rodata.*)
*components/esp_system/ubsan.*(.rodata .rodata.*)
*libgcc.a:_divsf3.*(.rodata .rodata.*)
*libgcc.a:save-restore.*(.rodata .rodata.*)
*libgcov.a:(.rodata .rodata.*)
*components/hal/cpu_hal.*(.rodata .rodata.*)
*components/hal/i2c_hal_iram.*(.rodata .rodata.*)
*components/hal/ledc_hal_iram.*(.rodata .rodata.*)
*components/hal/soc_hal.*(.rodata .rodata.*)
*components/hal/spi_flash_encrypt_hal_iram.*(.rodata .rodata.*)
*components/hal/spi_flash_hal_gpspi.*(.rodata .rodata.*)
*components/hal/spi_flash_hal_iram.*(.rodata .rodata.*)
*components/hal/spi_hal_iram.*(.rodata .rodata.*)
*components/hal/spi_slave_hal_iram.*(.rodata .rodata.*)
*components/hal/systimer_hal.*(.rodata .rodata.*)
*components/hal/twai_hal.*(.rodata .rodata.*)
*components/hal/uart_hal.*(.rodata .rodata.*)
*components/hal/wdt_hal_iram.*(.rodata .rodata.*)
*components/heap/heap_tlsf.*(.rodata .rodata.*)
*components/heap/multi_heap.*(.rodata .rodata.*)
*components/newlib/abort.*(.rodata .rodata.*)
*components/newlib/assert.*(.rodata .rodata.*)
*components/newlib/heap.*(.rodata .rodata.*)
*components/newlib/stdatomic.*(.rodata .rodata.*)
_nimble_data_start = ABSOLUTE(.);
*libnimble.a:(.data .data.*)
. = ALIGN(4);
_nimble_data_end = ABSOLUTE(.);
*libphy.a:(.rodata .rodata.*)
*components/soc/lldesc.*(.rodata .rodata.*)
*components/spi_flash/memspi_host_driver.*(.rodata .rodata.*)
*components/spi_flash/spi_flash_chip_boya.*(.rodata .rodata.*)
*components/spi_flash/spi_flash_chip_gd.*(.rodata .rodata.*)
*components/spi_flash/spi_flash_chip_generic.*(.rodata .rodata.*)
*components/spi_flash/spi_flash_chip_issi.*(.rodata .rodata.*)
*components/spi_flash/spi_flash_chip_mxic.*(.rodata .rodata.*)
*components/spi_flash/spi_flash_chip_mxic_opi.*(.rodata .rodata.*)
*components/spi_flash/spi_flash_chip_th.*(.rodata .rodata.*)
*components/spi_flash/spi_flash_chip_winbond.*(.rodata .rodata.*)
*components/spi_flash/*/spi_flash_rom_patch.*(.rodata .rodata.*)
*components/spi_flash/spi_flash_timing_tuning.*(.rodata .rodata.*)
*components/spi_flash/spi_timing_config.*(.rodata .rodata.*)
_data_end = ABSOLUTE(.);
. = ALIGN(4);
} > dram0_0_seg
/**
* This section holds data that should not be initialized at power up.
* The section located in Internal SRAM memory region. The macro _NOINIT
* can be used as attribute to place data into this section.
* See the "esp_attr.h" file for more information.
*/
.noinit (NOLOAD):
{
. = ALIGN(4);
_noinit_start = ABSOLUTE(.);
*(.noinit .noinit.*)
. = ALIGN(4) ;
_noinit_end = ABSOLUTE(.);
} > dram0_0_seg
/* Shared RAM */
.dram0.bss (NOLOAD) :
{
. = ALIGN (8);
_bss_start = ABSOLUTE(.);
*(.bss .bss.*)
*(.ext_ram.bss .ext_ram.bss.*)
*(.dynbss .dynsbss .gnu.linkonce.b .gnu.linkonce.b.* .gnu.linkonce.sb .gnu.linkonce.sb.* .gnu.linkonce.sb2 .gnu.linkonce.sb2.* .sbss .sbss.* .sbss2 .sbss2.* .scommon .share.mem)
*(COMMON)
_bt_bss_start = ABSOLUTE(.);
*libbt.a:(.bss .bss.* COMMON)
. = ALIGN(4);
_bt_bss_end = ABSOLUTE(.);
_btdm_bss_start = ABSOLUTE(.);
*libbtdm_app.a:(.bss .bss.* COMMON)
. = ALIGN(4);
_btdm_bss_end = ABSOLUTE(.);
_nimble_bss_start = ABSOLUTE(.);
*libnimble.a:(.bss .bss.* COMMON)
. = ALIGN(4);
_nimble_bss_end = ABSOLUTE(.);
*(.dynsbss)
*(.sbss)
*(.sbss.*)
*(.gnu.linkonce.sb.*)
*(.scommon)
*(.sbss2)
*(.sbss2.*)
*(.gnu.linkonce.sb2.*)
*(.dynbss)
*(.share.mem)
*(.gnu.linkonce.b.*)
. = ALIGN (8);
_bss_end = ABSOLUTE(.);
} > dram0_0_seg
ASSERT(((_bss_end - ORIGIN(dram0_0_seg)) <= LENGTH(dram0_0_seg)), "DRAM segment data does not fit.")
.flash.text :
{
_stext = .;
_instruction_reserved_start = ABSOLUTE(.);
_text_start = ABSOLUTE(.);
*(.literal .literal.* .text .text.*)
*(.wifi0iram .wifi0iram.*)
*(.wifiorslpiram .wifiorslpiram.*)
*(.wifirxiram .wifirxiram.*)
*(.wifislpiram .wifislpiram.*)
*(.wifislprxiram .wifislprxiram.*)
*(.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)
/** 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
*/
. += _esp_flash_mmap_prefetch_pad_size;
_text_end = ABSOLUTE(.);
_instruction_reserved_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.
*/
_flash_cache_start = ABSOLUTE(0);
} > default_code_seg
/**
* This dummy section represents the .flash.text section but in default_rodata_seg.
* Thus, it must have its alignement and (at least) its size.
*/
.flash_rodata_dummy (NOLOAD):
{
_flash_rodata_dummy_start = .;
/* Start at the same alignement constraint than .flash.text */
. = ALIGN(ALIGNOF(.flash.text));
/* Create an empty gap as big as .flash.text section */
. = . + SIZEOF(.flash.text);
/* Prepare the alignement of the section above. Few bytes (0x20) must be
* added for the mapping header. */
. = ALIGN(0x10000) + 0x20;
_rodata_reserved_start = .;
} > default_rodata_seg
.flash.appdesc : ALIGN(0x10)
{
_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! */
/* Create an empty gap within this section. Thanks to this, the end of this
* section will match .flash.rodata's begin address. Thus, both sections
* will be merged when creating the final bin image. */
. = ALIGN(ALIGNOF(.flash.rodata));
} >default_rodata_seg
.flash.rodata : ALIGN(0x10)
{
_flash_rodata_start = ABSOLUTE(.);
*(.rodata .rodata.*)
*(.rodata_wlog_error .rodata_wlog_error.*)
*(.rodata_wlog_info .rodata_wlog_info.*)
*(.rodata_wlog_warning .rodata_wlog_warning.*)
KEEP (*(SORT(.roxfa.*)))
*(.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)
. = (. + 7) & ~ 3;
/*
* C++ constructor and destructor tables
* Don't include anything from crtbegin.o or crtend.o, as IDF doesn't use toolchain crt.
*
* RISC-V gcc is configured with --enable-initfini-array so it emits an .init_array section instead.
* But the init_priority sections will be sorted for iteration in ascending order during startup.
* The rest of the init_array sections is sorted for iteration in descending order during startup, however.
* Hence a different section is generated for the init_priority functions which is iterated in
* ascending order during startup. The corresponding code can be found in startup.c.
*/
__init_priority_array_start = ABSOLUTE(.);
KEEP (*(EXCLUDE_FILE (*crtend.* *crtbegin.*) .init_array.*))
__init_priority_array_end = ABSOLUTE(.);
__init_array_start = ABSOLUTE(.);
KEEP (*(EXCLUDE_FILE (*crtend.* *crtbegin.*) .init_array))
__init_array_end = ABSOLUTE(.);
KEEP (*crtbegin.*(.dtors))
KEEP (*(EXCLUDE_FILE (*crtend.*) .dtors))
KEEP (*(SORT(.dtors.*)))
KEEP (*(.dtors))
/* 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)
/* Addresses of memory regions reserved via SOC_RESERVE_MEMORY_REGION() */
soc_reserved_memory_region_start = ABSOLUTE(.);
KEEP (*(.reserved_memory_address))
soc_reserved_memory_region_end = ABSOLUTE(.);
_rodata_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.*)
*(.srodata)
*(.srodata.*)
_thread_local_end = ABSOLUTE(.);
_rodata_reserved_end = ABSOLUTE(.);
. = ALIGN(ALIGNOF(.eh_frame));
} > default_rodata_seg
/* Keep this section shall be at least aligned on 4 */
.eh_frame : ALIGN(8)
{
__eh_frame = ABSOLUTE(.);
KEEP (*(.eh_frame))
__eh_frame_end = ABSOLUTE(.);
/* Guarantee that this section and the next one will be merged by making
* them adjacent. */
. = ALIGN(ALIGNOF(.eh_frame_hdr));
} > default_rodata_seg
/* To avoid any exception in C++ exception frame unwinding code, this section
* shall be aligned on 8. */
.eh_frame_hdr : ALIGN(8)
{
__eh_frame_hdr = ABSOLUTE(.);
KEEP (*(.eh_frame_hdr))
__eh_frame_hdr_end = ABSOLUTE(.);
} > default_rodata_seg
.flash.rodata_noload (NOLOAD) :
{
. = ALIGN (4);
*(.rodata_wlog_debug .rodata_wlog_debug.*)
*(.rodata_wlog_verbose .rodata_wlog_verbose.*)
} > default_rodata_seg
/* Marks the end of IRAM code segment */
.iram0.text_end (NOLOAD) :
{
/* iram_end_test section exists for use by Memprot unit tests only */
*(.iram_end_test)
/* ESP32-C3 memprot requires 16B padding for possible CPU prefetch and 512B alignment for PMS split lines */
. += _esp_memprot_prefetch_pad_size;
. = ALIGN(_esp_memprot_align_size);
_iram_text_end = ABSOLUTE(.);
} > iram0_0_seg
.iram0.data :
{
. = ALIGN(16);
_iram_data_start = ABSOLUTE(.);
*(.iram.data .iram.data.*)
_coredump_iram_start = ABSOLUTE(.);
*(.iram.data.coredump .iram.data.coredump.*)
_coredump_iram_end = ABSOLUTE(.);
_iram_data_end = ABSOLUTE(.);
} > iram0_0_seg
.iram0.bss (NOLOAD) :
{
. = ALIGN(16);
_iram_bss_start = ABSOLUTE(.);
*(.iram.bss .iram.bss.*)
_iram_bss_end = ABSOLUTE(.);
. = ALIGN(16);
_iram_end = ABSOLUTE(.);
} > iram0_0_seg
/* Marks the end of data, bss and possibly rodata */
.dram0.heap_start (NOLOAD) :
{
. = ALIGN (16);
_heap_start = ABSOLUTE(.);
_sheap = ABSOLUTE(.);
} > dram0_0_seg
_eheap = phy_param_rom;
}
ASSERT(((_iram_end - ORIGIN(iram0_0_seg)) <= LENGTH(iram0_0_seg)),
"IRAM0 segment data does not fit.")
ASSERT(((_heap_start - ORIGIN(dram0_0_seg)) <= LENGTH(dram0_0_seg)),
"DRAM segment data does not fit.")