# CMake script to fix segment overlap issue
# This script modifies the ESP32-S3 memory layout to avoid 64KB flash segment overlaps

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)
    
    # 检查是否已经应用了修复
    if(NOT CONTENT MATCHES "Rust segment overlap fix")
        # 简单的方法：在文件末尾添加 64KB 对齐指令
        # 这样可以确保所有段都正确对齐
        set(NEW_CONTENT "${CONTENT}

/* Rust segment overlap fix */
.flash.rodata : ALIGN(0x10000)
{
    *(.flash.rodata .flash.rodata.*)
    *(.flash.rodata1)
    *(.flash_rodata_align)
} >default_rodata_seg
")
        
        file(WRITE ${SECTIONS_LD} "${NEW_CONTENT}")
        message(STATUS "Applied segment overlap fix: added 64KB alignment for rodata")
    else()
        message(STATUS "Segment overlap fix already applied")
    endif()
else()
    message(WARNING "sections.ld not found at ${SECTIONS_LD}")
endif()