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boards/xtensa/esp32: add rtc_reserved_seg to legacy_sections

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Enable building the legacy idf format of nuttx when rtc is enabled.
Without this addition the build fails because the rtc data is placed in
rom.

Signed-off-by: Laczen JMS <laczenjms@gmail.com>
This commit is contained in:
Laczen JMS 2026-01-19 17:16:33 +01:00 • committed by Xiang Xiao
parent 5b52a32f5a
commit 88f62fd322
1 changed files with 17 additions and 0 deletions
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17
boards/xtensa/esp32/common/scripts/legacy_sections.ld
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@ -384,4 +384,21 @@ SECTIONS
. = ALIGN (4);
_srtcheap = ABSOLUTE(.);
} > rtc_slow_seg
/*
* This section holds RTC data that should have fixed addresses.
* The data are not initialized at power-up and are retained during deep sleep.
*/
.rtc_reserved (NOLOAD):
{
. = ALIGN(4);
_rtc_reserved_start = ABSOLUTE(.);
/* New data can only be added here to ensure existing data are not moved.
Because data have adhered to the end of the segment and code is relied on it.
>> put new data here << */
*(.rtc_timer_data_in_rtc_mem .rtc_timer_data_in_rtc_mem.*)
KEEP(*(.bootloader_data_rtc_mem .bootloader_data_rtc_mem.*))
_rtc_reserved_end = ABSOLUTE(.);
} > rtc_reserved_seg
}