[deliverable/linux.git] / arch / arm64 / kernel / vmlinux.lds.S

/*
 * ld script to make ARM Linux kernel
 * taken from the i386 version by Russell King
 * Written by Martin Mares <mj@atrey.karlin.mff.cuni.cz>
 */

#include <asm-generic/vmlinux.lds.h>
#include <asm/thread_info.h>
#include <asm/memory.h>
#include <asm/page.h>

#include "image.h"

#define ARM_EXIT_KEEP(x)
#define ARM_EXIT_DISCARD(x)	x

OUTPUT_ARCH(aarch64)
ENTRY(_text)

jiffies = jiffies_64;

#define HYPERVISOR_TEXT					\
	/*						\
	 * Force the alignment to be compatible with	\
	 * the vectors requirements			\
	 */						\
	. = ALIGN(2048);				\
	VMLINUX_SYMBOL(__hyp_idmap_text_start) = .;	\
	*(.hyp.idmap.text)				\
	VMLINUX_SYMBOL(__hyp_idmap_text_end) = .;	\
	VMLINUX_SYMBOL(__hyp_text_start) = .;		\
	*(.hyp.text)					\
	VMLINUX_SYMBOL(__hyp_text_end) = .;

SECTIONS
{
	/*
	 * XXX: The linker does not define how output sections are
	 * assigned to input sections when there are multiple statements
	 * matching the same input section name.  There is no documented
	 * order of matching.
	 */
	/DISCARD/ : {
		ARM_EXIT_DISCARD(EXIT_TEXT)
		ARM_EXIT_DISCARD(EXIT_DATA)
		EXIT_CALL
		*(.discard)
		*(.discard.*)
	}

	. = PAGE_OFFSET + TEXT_OFFSET;

	.head.text : {
		_text = .;
		HEAD_TEXT
	}
	.text : {			/* Real text segment		*/
		_stext = .;		/* Text and read-only data	*/
			__exception_text_start = .;
			*(.exception.text)
			__exception_text_end = .;
			IRQENTRY_TEXT
			TEXT_TEXT
			SCHED_TEXT
			LOCK_TEXT
			HYPERVISOR_TEXT
			*(.fixup)
			*(.gnu.warning)
		. = ALIGN(16);
		*(.got)			/* Global offset table		*/
	}

	RO_DATA(PAGE_SIZE)
	EXCEPTION_TABLE(8)
	NOTES
	_etext = .;			/* End of text and rodata section */

	. = ALIGN(PAGE_SIZE);
	__init_begin = .;

	INIT_TEXT_SECTION(8)
	.exit.text : {
		ARM_EXIT_KEEP(EXIT_TEXT)
	}
	. = ALIGN(16);
	.init.data : {
		INIT_DATA
		INIT_SETUP(16)
		INIT_CALLS
		CON_INITCALL
		SECURITY_INITCALL
		INIT_RAM_FS
	}
	.exit.data : {
		ARM_EXIT_KEEP(EXIT_DATA)
	}

	PERCPU_SECTION(64)

	. = ALIGN(PAGE_SIZE);
	__init_end = .;

	_data = .;
	_sdata = .;
	RW_DATA_SECTION(64, PAGE_SIZE, THREAD_SIZE)
	_edata = .;

	BSS_SECTION(0, 0, 0)

	. = ALIGN(PAGE_SIZE);
	idmap_pg_dir = .;
	. += IDMAP_DIR_SIZE;
	swapper_pg_dir = .;
	. += SWAPPER_DIR_SIZE;

	_end = .;

	STABS_DEBUG

	HEAD_SYMBOLS
}

/*
 * The HYP init code can't be more than a page long.
 */
ASSERT(((__hyp_idmap_text_start + PAGE_SIZE) > __hyp_idmap_text_end),
       "HYP init code too big")

/*
 * If padding is applied before .head.text, virt<->phys conversions will fail.
 */
ASSERT(_text == (PAGE_OFFSET + TEXT_OFFSET), "HEAD is misaligned")
Commit	Line	Data
8c2c3df3 CM	1	/*
	2	* ld script to make ARM Linux kernel
	3	* taken from the i386 version by Russell King
	4	* Written by Martin Mares <mj@atrey.karlin.mff.cuni.cz>
	5	*/
	6
	7	#include <asm-generic/vmlinux.lds.h>
	8	#include <asm/thread_info.h>
	9	#include <asm/memory.h>
	10	#include <asm/page.h>
	11
a2c1d73b MR	12	#include "image.h"
a2c1d73b MR	13
8c2c3df3 CM	14	#define ARM_EXIT_KEEP(x)
	15	#define ARM_EXIT_DISCARD(x) x
	16
	17	OUTPUT_ARCH(aarch64)
af885f40	18	ENTRY(_text)
8c2c3df3 CM	19
	20	jiffies = jiffies_64;
	21
2240bbb6 MZ	22	#define HYPERVISOR_TEXT \
	23	/* \
	24	* Force the alignment to be compatible with \
	25	* the vectors requirements \
	26	*/ \
	27	. = ALIGN(2048); \
	28	VMLINUX_SYMBOL(__hyp_idmap_text_start) = .; \
	29	*(.hyp.idmap.text) \
	30	VMLINUX_SYMBOL(__hyp_idmap_text_end) = .; \
	31	VMLINUX_SYMBOL(__hyp_text_start) = .; \
	32	*(.hyp.text) \
	33	VMLINUX_SYMBOL(__hyp_text_end) = .;
	34
8c2c3df3 CM	35	SECTIONS
	36	{
	37	/*
	38	* XXX: The linker does not define how output sections are
	39	* assigned to input sections when there are multiple statements
	40	* matching the same input section name. There is no documented
	41	* order of matching.
	42	*/
	43	/DISCARD/ : {
	44	ARM_EXIT_DISCARD(EXIT_TEXT)
	45	ARM_EXIT_DISCARD(EXIT_DATA)
	46	EXIT_CALL
	47	*(.discard)
	48	(.discard.)
	49	}
	50
	51	. = PAGE_OFFSET + TEXT_OFFSET;
	52
	53	.head.text : {
	54	_text = .;
	55	HEAD_TEXT
	56	}
	57	.text : { /* Real text segment */
	58	_stext = .; /* Text and read-only data */
8c2c3df3 CM	59	__exception_text_start = .;
	60	*(.exception.text)
	61	__exception_text_end = .;
	62	IRQENTRY_TEXT
	63	TEXT_TEXT
	64	SCHED_TEXT
	65	LOCK_TEXT
2240bbb6	66	HYPERVISOR_TEXT
8c2c3df3 CM	67	*(.fixup)
	68	*(.gnu.warning)
	69	. = ALIGN(16);
	70	(.got) / Global offset table */
	71	}
	72
	73	RO_DATA(PAGE_SIZE)
adace895	74	EXCEPTION_TABLE(8)
c80b7ee8	75	NOTES
8c2c3df3 CM	76	_etext = .; /* End of text and rodata section */
	77
	78	. = ALIGN(PAGE_SIZE);
	79	__init_begin = .;
	80
	81	INIT_TEXT_SECTION(8)
	82	.exit.text : {
	83	ARM_EXIT_KEEP(EXIT_TEXT)
	84	}
	85	. = ALIGN(16);
	86	.init.data : {
	87	INIT_DATA
	88	INIT_SETUP(16)
	89	INIT_CALLS
	90	CON_INITCALL
	91	SECURITY_INITCALL
	92	INIT_RAM_FS
	93	}
	94	.exit.data : {
	95	ARM_EXIT_KEEP(EXIT_DATA)
	96	}
	97
	98	PERCPU_SECTION(64)
	99
562c85ca	100	. = ALIGN(PAGE_SIZE);
8c2c3df3	101	__init_end = .;
3c620626	102
3c620626	103	_data = .;
3c620626 MS	104	_sdata = .;
	105	RW_DATA_SECTION(64, PAGE_SIZE, THREAD_SIZE)
	106	_edata = .;
8c2c3df3	107
8c2c3df3	108	BSS_SECTION(0, 0, 0)
bd00cd5f MR	109
	110	. = ALIGN(PAGE_SIZE);
	111	idmap_pg_dir = .;
	112	. += IDMAP_DIR_SIZE;
	113	swapper_pg_dir = .;
	114	. += SWAPPER_DIR_SIZE;
	115
8c2c3df3 CM	116	_end = .;
	117
	118	STABS_DEBUG
a2c1d73b MR	119
a2c1d73b MR	120	HEAD_SYMBOLS
8c2c3df3	121	}
2240bbb6 MZ	122
	123	/*
	124	* The HYP init code can't be more than a page long.
	125	*/
	126	ASSERT(((__hyp_idmap_text_start + PAGE_SIZE) > __hyp_idmap_text_end),
	127	"HYP init code too big")
da57a369 MR	128
	129	/*
	130	* If padding is applied before .head.text, virt<->phys conversions will fail.
	131	*/
	132	ASSERT(_text == (PAGE_OFFSET + TEXT_OFFSET), "HEAD is misaligned")