xref: /src/sys/arch/aarch64/conf/kern.ldscript

#include "assym.h"

/* Default linker script, for normal executables */
OUTPUT_FORMAT("elf64-littleaarch64", "elf64-bigaarch64",
	      "elf64-littleaarch64")
OUTPUT_ARCH(aarch64)
ENTRY(_start)

SECTIONS
{
	.text :
	{
		PROVIDE(__kernel_text = .);
		PROVIDE(kernel_text = .);
		*(.text)
		*(.text.*)
		*(.stub)
	} =0

	/* Move .rodata to the next L2 block to set unexecutable */
	. = ALIGN(L2_SIZE);

	PROVIDE(__rodata_start = .);
	.rodata :
	{
		*(.rodata)
		*(.rodata.*)
		. = ALIGN(64);
		__CTOR_LIST__ = .;
		*(.ctors)
		*(.init_array)
		__CTOR_END__ = .;
	}

	PROVIDE(_etext = .);
	PROVIDE(etext = .);

	/*
	 * Adjust the address for the data segment. Move .data to the next
	 * L2 block, and .text and .rodata will be set readonly if needed.
	 */
	PROVIDE(_erodata = .);
	. = ALIGN(L2_SIZE);

	.data :
	{
		PROVIDE(__data_start = .);
		*(.data)
	}

	. = ALIGN(COHERENCY_UNIT);
	.data.cacheline_aligned :
	{
		*(.data.cacheline_aligned)
	}
	. = ALIGN(COHERENCY_UNIT);
	.data.read_mostly :
	{
		*(.data.read_mostly)
	}
	. = ALIGN(COHERENCY_UNIT);

	_edata = .;
	PROVIDE (edata = .);

	__bss_start = .;
	__bss_start__ = .;
	.bss :
	{
		*(.bss)
		*(.bss.*)
		*(COMMON)

		/*
		 * Align here to ensure that the .bss section occupies space
		 * up to _end. Align after .bss to ensure correct alignment
		 * even if the .bss section disappears because there are no
		 * input sections.
		 *
		 * FIXME: Why do we need it? When there is no .bss section,
		 * we don't pad the .data section.
		 */
		. = ALIGN(. != 0 ? 32 / 8 : 1);
	}
	_bss_end__ = . ;
	__bss_end__ = . ;
	. = ALIGN(32 / 8);

	__end__ = . ;
	_end = .;
	PROVIDE(end = .);
}