Macro init_sections_with_prefixes

macro_rules! init_sections_with_prefixes {
    ($($section_name:ident($beg:ident,$end:ident,$src:ident)$(,)?)+) => { ... };
}

Defines pre-init function initializing linker section memory.

This macro accepts linker section names and symbol prefixes as arguments. If your section symbols are prefixed with __s, __e and __si, look at init_sections.

If the symbols in the linker script are named __scustom_data, __ecustom_data and __sicustom_data, as depicted in an example below, the macro call should be

init_sections_with_prefixes!(custom_data(__s, __e, __si))

MEMORY
{
    FLASH   : ORIGIN = 0x08000000, LENGTH = 32K
    RAM     : ORIGIN = 0x20000000, LENGTH = 16K
    DATA    : ORIGIN = 0x20004000, LENGTH = 16K
}

SECTIONS
{
    .custom_data : ALIGN(4)
    {
        . = ALIGN(4);
        __scustom_data = .;
        *(.custom_data .custom_data.*);

        . = ALIGN(4);
        __ecustom_data = .;
    } > DATA AT>FLASH

    __sicustom_data = LOADADDR(.custom_data);
} INSERT BEFORE .uninit;

Multiple section names could be passed as

init_sections_with_prefixes!(section_a(__s, __e __si), section_b(__s, __e, __si));

init_sections_with_prefixes!(section_a(__s,__e,__si),);

init_sections_with_prefixes!(
    section_a(__s, __e, __si)
    section_b(__s, __e, __si,)
    section_c(__s __e __si)
);