xref: /linux/arch/s390/kernel/vmlinux.lds.S (revision c4ee0af3fa0dc65f690fc908f02b8355f9576ea0) 
1/* ld script to make s390 Linux kernel
2 * Written by Martin Schwidefsky (schwidefsky@de.ibm.com)
3 */
4
5#include <asm/thread_info.h>
6#include <asm/page.h>
7#include <asm-generic/vmlinux.lds.h>
8
9#ifndef CONFIG_64BIT
10OUTPUT_FORMAT("elf32-s390", "elf32-s390", "elf32-s390")
11OUTPUT_ARCH(s390:31-bit)
12ENTRY(startup)
13jiffies = jiffies_64 + 4;
14#else
15OUTPUT_FORMAT("elf64-s390", "elf64-s390", "elf64-s390")
16OUTPUT_ARCH(s390:64-bit)
17ENTRY(startup)
18jiffies = jiffies_64;
19#endif
20
21PHDRS {
22	text PT_LOAD FLAGS(5);	/* R_E */
23	data PT_LOAD FLAGS(7);	/* RWE */
24	note PT_NOTE FLAGS(0);	/* ___ */
25}
26
27SECTIONS
28{
29	. = 0x00000000;
30	.text : {
31	_text = .;		/* Text and read-only data */
32		HEAD_TEXT
33		TEXT_TEXT
34		SCHED_TEXT
35		LOCK_TEXT
36		KPROBES_TEXT
37		IRQENTRY_TEXT
38		*(.fixup)
39		*(.gnu.warning)
40	} :text = 0x0700
41
42	_etext = .;		/* End of text section */
43
44	NOTES :text :note
45
46	.dummy : { *(.dummy) } :data
47
48	RO_DATA_SECTION(PAGE_SIZE)
49
50#ifdef CONFIG_SHARED_KERNEL
51	. = ALIGN(0x100000);	/* VM shared segments are 1MB aligned */
52#endif
53
54	. = ALIGN(PAGE_SIZE);
55	_eshared = .;		/* End of shareable data */
56	_sdata = .;		/* Start of data section */
57
58	EXCEPTION_TABLE(16) :data
59
60	RW_DATA_SECTION(0x100, PAGE_SIZE, THREAD_SIZE)
61
62	_edata = .;		/* End of data section */
63
64	/* will be freed after init */
65	. = ALIGN(PAGE_SIZE);	/* Init code and data */
66	__init_begin = .;
67
68	INIT_TEXT_SECTION(PAGE_SIZE)
69
70	/*
71	 * .exit.text is discarded at runtime, not link time,
72	 * to deal with references from __bug_table
73	*/
74	.exit.text : {
75		EXIT_TEXT
76	}
77
78	.exit.data : {
79		EXIT_DATA
80	}
81
82	/* early.c uses stsi, which requires page aligned data. */
83	. = ALIGN(PAGE_SIZE);
84	INIT_DATA_SECTION(0x100)
85
86	PERCPU_SECTION(0x100)
87	. = ALIGN(PAGE_SIZE);
88	__init_end = .;		/* freed after init ends here */
89
90	BSS_SECTION(0, 2, 0)
91
92	_end = . ;
93
94	/* Debugging sections.	*/
95	STABS_DEBUG
96	DWARF_DEBUG
97
98	/* Sections to be discarded */
99	DISCARDS
100}
101