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ESP32/my_usb_project/fix_linker_script.cmake

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+# CMake script to fix linker script after build
+# This script modifies sections.ld to add 64KB alignment for both appdesc and rodata
+
+string(REPLACE "\\" "/" CMAKE_BINARY_DIR "${CMAKE_BINARY_DIR}")
+set(SECTIONS_LD "${CMAKE_BINARY_DIR}/esp-idf/esp_system/ld/sections.ld")
+
+if(EXISTS ${SECTIONS_LD})
+    file(READ ${SECTIONS_LD} CONTENT)
+    
+    # Check if the appdesc 64KB alignment fix is already applied
+    if(NOT CONTENT MATCHES "\\.flash\\.appdesc.*\\}.*default_rodata_seg.*\\n.*\\. = ALIGN\\(0x10000\\)")
+        # Add 64KB alignment after .flash.appdesc section ends
+        string(REGEX REPLACE 
+            "(\\*\\(\\.rodata_custom_desc.*\\.\\*\\).*\\} >default_rodata_seg)"
+            "\\1\n  . = ALIGN(0x10000);"
+            NEW_CONTENT "${CONTENT}")
+        
+        file(WRITE ${SECTIONS_LD} "${NEW_CONTENT}")
+        message(STATUS "Applied linker script fix: added 64KB alignment after appdesc")
+    else()
+        message(STATUS "Linker script fix already applied")
+    endif()
+else()
+    message(WARNING "sections.ld not found at ${SECTIONS_LD}")
+endif()