(nuttx) branch master updated: boards/xtensa/esp32: add rtc_reserved_seg to legacy_sections

[xiaoxiang]

This is an automated email from the ASF dual-hosted git repository.

xiaoxiang pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/nuttx.git


The following commit(s) were added to refs/heads/master by this push:
     new 88f62fd3222 boards/xtensa/esp32: add rtc_reserved_seg to 
legacy_sections
88f62fd3222 is described below

commit 88f62fd3222ea733b956e2d1e8bdb84530d6df38
Author: Laczen JMS <laczen...@gmail.com>
AuthorDate: Mon Jan 19 17:16:33 2026 +0100

    boards/xtensa/esp32: add rtc_reserved_seg to legacy_sections
    
    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 <laczen...@gmail.com>
---
 boards/xtensa/esp32/common/scripts/legacy_sections.ld | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/boards/xtensa/esp32/common/scripts/legacy_sections.ld 
b/boards/xtensa/esp32/common/scripts/legacy_sections.ld
index 4c960f3be64..1442432f664 100644
--- a/boards/xtensa/esp32/common/scripts/legacy_sections.ld
+++ b/boards/xtensa/esp32/common/scripts/legacy_sections.ld
@@ -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
 }