Linux kernel v5.4.123 64bit RISC-V vmlinux.lds sample lds comment

vmlinux-sample.lds.S

/*
 * Helper macros to support writing architecture specific
 * linker scripts.
 *
 * A minimal linker scripts has following content:
 * [This is a sample, architectures may have special requiriements]
 */

OUTPUT_FORMAT(...)
OUTPUT_ARCH(...)
ENTRY(...)
SECTIONS
{
	. = START;
	__init_begin = .;
	HEAD_TEXT_SECTION
	INIT_TEXT_SECTION(PAGE_SIZE)
	INIT_DATA_SECTION(...)
	PERCPU_SECTION(CACHELINE_SIZE)
	__init_end = .;

	_stext = .;
	TEXT_SECTION = 0
	_etext = .;

     _sdata = .;
	RO_DATA_SECTION(PAGE_SIZE)
	RW_DATA_SECTION(...)
	_edata = .;

	EXCEPTION_TABLE(...)
	NOTES

	BSS_SECTION(0, 0, 0)
	_end = .;

	STABS_DEBUG
	DWARF_DEBUG

	DISCARDS		// must be the last
}

/*
 * [__init_begin, __init_end] is the init section that may be freed after init
 * 	// __init_begin and __init_end should be page aligned, so that we can
 *	// free the whole .init memory
 * [_stext, _etext] is the text section
 * [_sdata, _edata] is the data section
 *
 * Some of the included output section have their own set of constants.
 * Examples are: [__initramfs_start, __initramfs_end] for initramfs and
 *               [__nosave_begin, __nosave_end] for the nosave data
 */