Macro esp_app_desc

macro_rules! esp_app_desc {
    () => { ... };
    (
     $version: expr,
     $project_name: expr,
     $build_time: expr,
     $build_date: expr,
     $idf_ver: expr,
     $mmu_page_size: expr,
     $min_efuse_blk_rev_full: expr,
     $max_efuse_blk_rev_full: expr
    ) => { ... };
}

This macro populates the application descriptor (see EspAppDesc) which is available as a static named ESP_APP_DESC

In most cases you can just use the no-arguments version of this macro.