/* RP2350 (Pico 2) memory layout for rp235x-hal + cortex-m-rt.
   The bootrom requires the IMAGE_DEF (.start_block) right after the vector table. */
MEMORY {
    FLASH : ORIGIN = 0x10000000, LENGTH = 4096K
    RAM   : ORIGIN = 0x20000000, LENGTH = 512K
}

SECTIONS {
    /* ### RP2350 image definition block — the bootrom scans for this to boot the image. */
    .start_block : ALIGN(4)
    {
        __start_block_addr = .;
        KEEP(*(.start_block));
        KEEP(*(.boot_info));
    } > FLASH
} INSERT AFTER .vector_table;

/* move .text after the start block */
_stext = ADDR(.start_block) + SIZEOF(.start_block);

SECTIONS {
    /* picotool 'Binary Info' entries */
    .bi_entries : ALIGN(4)
    {
        __bi_entries_start = .;
        KEEP(*(.bi_entries));
        . = ALIGN(4);
        __bi_entries_end = .;
    } > FLASH
} INSERT AFTER .text;

SECTIONS {
    .end_block : ALIGN(4)
    {
        __end_block_addr = .;
        KEEP(*(.end_block));
    } > FLASH
} INSERT AFTER .bi_entries;

PROVIDE(start_to_end = __end_block_addr - __start_block_addr);
PROVIDE(end_to_start = __start_block_addr - __end_block_addr);