[mirror_ubuntu-artful-kernel.git] / arch / s390 / kernel / vmlinux.lds.S

/* ld script to make s390 Linux kernel
 * Written by Martin Schwidefsky (schwidefsky@de.ibm.com)
 */

#include <asm/thread_info.h>
#include <asm/page.h>

/*
 * Put .bss..swapper_pg_dir as the first thing in .bss. This will
 * make sure it has 16k alignment.
 */
#define BSS_FIRST_SECTIONS *(.bss..swapper_pg_dir)

/* Handle ro_after_init data on our own. */
#define RO_AFTER_INIT_DATA

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

OUTPUT_FORMAT("elf64-s390", "elf64-s390", "elf64-s390")
OUTPUT_ARCH(s390:64-bit)
ENTRY(startup)
jiffies = jiffies_64;

PHDRS {
	text PT_LOAD FLAGS(5);	/* R_E */
	data PT_LOAD FLAGS(7);	/* RWE */
	note PT_NOTE FLAGS(0);	/* ___ */
}

SECTIONS
{
	. = 0x00000000;
	.text : {
		/* Text and read-only data */
		HEAD_TEXT
		/*
		 * E.g. perf doesn't like symbols starting at address zero,
		 * therefore skip the initial PSW and channel program located
		 * at address zero and let _text start at 0x200.
		 */
	_text = 0x200;
		TEXT_TEXT
		SCHED_TEXT
		CPUIDLE_TEXT
		LOCK_TEXT
		KPROBES_TEXT
		IRQENTRY_TEXT
		SOFTIRQENTRY_TEXT
		*(.fixup)
		*(.gnu.warning)
	} :text = 0x0700

	. = ALIGN(PAGE_SIZE);
	_etext = .;		/* End of text section */

	NOTES :text :note

	.dummy : { *(.dummy) } :data

	RO_DATA_SECTION(PAGE_SIZE)

#ifdef CONFIG_SHARED_KERNEL
	. = ALIGN(0x100000);	/* VM shared segments are 1MB aligned */
#endif

	. = ALIGN(PAGE_SIZE);
	_eshared = .;		/* End of shareable data */
	_sdata = .;		/* Start of data section */

	. = ALIGN(PAGE_SIZE);
	__start_ro_after_init = .;
	.data..ro_after_init : {
		 *(.data..ro_after_init)
	}
	EXCEPTION_TABLE(16)
	. = ALIGN(PAGE_SIZE);
	__end_ro_after_init = .;

	RW_DATA_SECTION(0x100, PAGE_SIZE, THREAD_SIZE)

	_edata = .;		/* End of data section */

	/* will be freed after init */
	. = ALIGN(PAGE_SIZE);	/* Init code and data */
	__init_begin = .;

	. = ALIGN(PAGE_SIZE);
	.init.text : AT(ADDR(.init.text) - LOAD_OFFSET) {
		VMLINUX_SYMBOL(_sinittext) = . ;
		INIT_TEXT
		. = ALIGN(PAGE_SIZE);
		VMLINUX_SYMBOL(_einittext) = . ;
	}

	/*
	 * .exit.text is discarded at runtime, not link time,
	 * to deal with references from __bug_table
	*/
	.exit.text : {
		EXIT_TEXT
	}

	.exit.data : {
		EXIT_DATA
	}

	/* early.c uses stsi, which requires page aligned data. */
	. = ALIGN(PAGE_SIZE);
	INIT_DATA_SECTION(0x100)

	PERCPU_SECTION(0x100)
	. = ALIGN(PAGE_SIZE);
	__init_end = .;		/* freed after init ends here */

	BSS_SECTION(PAGE_SIZE, 4 * PAGE_SIZE, PAGE_SIZE)

	_end = . ;

	/* Debugging sections.	*/
	STABS_DEBUG
	DWARF_DEBUG

	/* Sections to be discarded */
	DISCARDS
}
Commit	Line	Data
1da177e4 LT	1	/* ld script to make s390 Linux kernel
	2	* Written by Martin Schwidefsky (schwidefsky@de.ibm.com)
	3	*/
	4
0778dc3a	5	#include <asm/thread_info.h>
52480ee5	6	#include <asm/page.h>
0ccb32c9 HC	7
	8	/*
	9	* Put .bss..swapper_pg_dir as the first thing in .bss. This will
	10	* make sure it has 16k alignment.
	11	*/
	12	#define BSS_FIRST_SECTIONS *(.bss..swapper_pg_dir)
	13
d07a980c HC	14	/* Handle ro_after_init data on our own. */
	15	#define RO_AFTER_INIT_DATA
	16
1da177e4	17	#include <asm-generic/vmlinux.lds.h>
1da177e4	18
1da177e4 LT	19	OUTPUT_FORMAT("elf64-s390", "elf64-s390", "elf64-s390")
1da177e4 LT	20	OUTPUT_ARCH(s390:64-bit)
e0a15d5b	21	ENTRY(startup)
1da177e4	22	jiffies = jiffies_64;
1da177e4	23
ea29ee16 MS	24	PHDRS {
	25	text PT_LOAD FLAGS(5); /* R_E */
	26	data PT_LOAD FLAGS(7); /* RWE */
	27	note PT_NOTE FLAGS(0); /* ___ */
	28	}
	29
1da177e4 LT	30	SECTIONS
1da177e4 LT	31	{
e16af09d SR	32	. = 0x00000000;
e16af09d SR	33	.text : {
d04a4c76	34	/* Text and read-only data */
2133bb8d	35	HEAD_TEXT
d04a4c76 HC	36	/*
	37	* E.g. perf doesn't like symbols starting at address zero,
	38	* therefore skip the initial PSW and channel program located
	39	* at address zero and let _text start at 0x200.
	40	*/
	41	_text = 0x200;
2133bb8d	42	TEXT_TEXT
e16af09d	43	SCHED_TEXT
6727ad9e	44	CPUIDLE_TEXT
e16af09d SR	45	LOCK_TEXT
e16af09d SR	46	KPROBES_TEXT
88dbd203	47	IRQENTRY_TEXT
be7635e7	48	SOFTIRQENTRY_TEXT
e16af09d SR	49	*(.fixup)
e16af09d SR	50	*(.gnu.warning)
a817a61f	51	} :text = 0x0700
1da177e4	52
57d7f939	53	. = ALIGN(PAGE_SIZE);
e16af09d	54	_etext = .; /* End of text section */
1da177e4	55
ea29ee16	56	NOTES :text :note
ea29ee16	57
7a2512b7 MS	58	.dummy : { *(.dummy) } :data
7a2512b7 MS	59
56280b1b	60	RO_DATA_SECTION(PAGE_SIZE)
1da177e4 LT	61
1da177e4 LT	62	#ifdef CONFIG_SHARED_KERNEL
52480ee5	63	. = ALIGN(0x100000); /* VM shared segments are 1MB aligned */
162e006e	64	#endif
1da177e4	65
52480ee5	66	. = ALIGN(PAGE_SIZE);
e16af09d	67	_eshared = .; /* End of shareable data */
dfcc3e6a	68	_sdata = .; /* Start of data section */
e16af09d	69
d07a980c HC	70	. = ALIGN(PAGE_SIZE);
	71	__start_ro_after_init = .;
	72	.data..ro_after_init : {
	73	*(.data..ro_after_init)
	74	}
	75	EXCEPTION_TABLE(16)
	76	. = ALIGN(PAGE_SIZE);
	77	__end_ro_after_init = .;
e16af09d	78
04a95f6d	79	RW_DATA_SECTION(0x100, PAGE_SIZE, THREAD_SIZE)
e16af09d	80
e16af09d SR	81	_edata = .; /* End of data section */
e16af09d SR	82
e16af09d	83	/* will be freed after init */
52480ee5	84	. = ALIGN(PAGE_SIZE); /* Init code and data */
e16af09d	85	__init_begin = .;
04a95f6d	86
57d7f939 MS	87	. = ALIGN(PAGE_SIZE);
	88	.init.text : AT(ADDR(.init.text) - LOAD_OFFSET) {
	89	VMLINUX_SYMBOL(_sinittext) = . ;
	90	INIT_TEXT
	91	. = ALIGN(PAGE_SIZE);
	92	VMLINUX_SYMBOL(_einittext) = . ;
	93	}
04a95f6d	94
e16af09d SR	95	/*
	96	* .exit.text is discarded at runtime, not link time,
	97	* to deal with references from __bug_table
	98	*/
	99	.exit.text : {
01ba2bdc	100	EXIT_TEXT
e16af09d SR	101	}
e16af09d SR	102
a4e69245 HC	103	.exit.data : {
	104	EXIT_DATA
	105	}
	106
92e6ecf3 CB	107	/* early.c uses stsi, which requires page aligned data. */
92e6ecf3 CB	108	. = ALIGN(PAGE_SIZE);
04a95f6d	109	INIT_DATA_SECTION(0x100)
e16af09d	110
0415b00d	111	PERCPU_SECTION(0x100)
52480ee5	112	. = ALIGN(PAGE_SIZE);
e16af09d SR	113	__init_end = .; /* freed after init ends here */
e16af09d SR	114
0ccb32c9	115	BSS_SECTION(PAGE_SIZE, 4 * PAGE_SIZE, PAGE_SIZE)
e16af09d SR	116
	117	_end = . ;
	118
e16af09d SR	119	/* Debugging sections. */
	120	STABS_DEBUG
	121	DWARF_DEBUG
023bf6f1 TH	122
	123	/* Sections to be discarded */
	124	DISCARDS
1da177e4	125	}