# 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()