xref: /linux/arch/microblaze/kernel/vmlinux.lds.S (revision c532de5a67a70f8533d495f8f2aaa9a0491c3ad0) 
1/*
2 * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
3 * Copyright (C) 2008-2009 PetaLogix
4 * Copyright (C) 2006 Atmark Techno, Inc.
5 *
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file "COPYING" in the main directory of this archive
8 * for more details.
9 */
10
11OUTPUT_ARCH(microblaze)
12ENTRY(microblaze_start)
13
14#define RO_EXCEPTION_TABLE_ALIGN	16
15
16#include <asm/cache.h>
17#include <asm/page.h>
18#include <asm-generic/vmlinux.lds.h>
19#include <asm/thread_info.h>
20
21#ifdef __MICROBLAZEEL__
22jiffies = jiffies_64;
23#else
24jiffies = jiffies_64 + 4;
25#endif
26
27SECTIONS {
28	. = CONFIG_KERNEL_START;
29	microblaze_start = CONFIG_KERNEL_BASE_ADDR;
30	.text : AT(ADDR(.text) - LOAD_OFFSET) {
31		_text = . ;
32		_stext = . ;
33		HEAD_TEXT
34		TEXT_TEXT
35		*(.fixup)
36		EXIT_TEXT
37		EXIT_CALL
38		SCHED_TEXT
39		LOCK_TEXT
40		KPROBES_TEXT
41		IRQENTRY_TEXT
42		SOFTIRQENTRY_TEXT
43		. = ALIGN (4) ;
44		_etext = . ;
45	}
46
47	. = ALIGN (8) ;
48	__fdt_blob : AT(ADDR(__fdt_blob) - LOAD_OFFSET) {
49		_fdt_start = . ;		/* place for fdt blob */
50		*(__fdt_blob) ;			/* Any link-placed DTB */
51	        . = _fdt_start + 0x10000;	/* Pad up to 64kbyte */
52		_fdt_end = . ;
53	}
54
55	. = ALIGN(16);
56	RO_DATA(4096)
57
58	/*
59	 * sdata2 section can go anywhere, but must be word aligned
60	 * and SDA2_BASE must point to the middle of it
61	 */
62	.sdata2 : AT(ADDR(.sdata2) - LOAD_OFFSET) {
63		_ssrw = .;
64		. = ALIGN(PAGE_SIZE); /* page aligned when MMU used */
65		*(.sdata2)
66	. = ALIGN(8);
67	_essrw = .;
68	_ssrw_size = _essrw - _ssrw;
69	_KERNEL_SDA2_BASE_ = _ssrw + (_ssrw_size / 2);
70	}
71
72	_sdata = . ;
73	RW_DATA(32, PAGE_SIZE, THREAD_SIZE)
74	_edata = . ;
75
76	/* Under the microblaze ABI, .sdata and .sbss must be contiguous */
77	. = ALIGN(8);
78	.sdata : AT(ADDR(.sdata) - LOAD_OFFSET) {
79		_ssro = .;
80		*(.sdata)
81	}
82
83	.sbss :	AT(ADDR(.sbss) - LOAD_OFFSET) {
84		_ssbss = .;
85		*(.sbss)
86		_esbss = .;
87		_essro = .;
88		_ssro_size = _essro - _ssro ;
89		_KERNEL_SDA_BASE_ = _ssro + (_ssro_size / 2) ;
90	}
91
92	PERCPU_SECTION(L1_CACHE_BYTES)
93
94	. = ALIGN(PAGE_SIZE);
95	__init_begin = .;
96
97	INIT_TEXT_SECTION(PAGE_SIZE)
98
99	.init.data : AT(ADDR(.init.data) - LOAD_OFFSET) {
100		INIT_DATA
101	}
102
103	. = ALIGN(4);
104	.init.ivt : AT(ADDR(.init.ivt) - LOAD_OFFSET) {
105		__ivt_start = .;
106		*(.init.ivt)
107		__ivt_end = .;
108	}
109
110	.init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) {
111		INIT_SETUP(0)
112	}
113
114	.initcall.init : AT(ADDR(.initcall.init) - LOAD_OFFSET ) {
115		INIT_CALLS
116	}
117
118	.con_initcall.init : AT(ADDR(.con_initcall.init) - LOAD_OFFSET) {
119		CON_INITCALL
120	}
121
122	__init_end_before_initramfs = .;
123
124	.init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) {
125		INIT_RAM_FS
126	}
127
128	__init_end = .;
129
130	.bss ALIGN (PAGE_SIZE) : AT(ADDR(.bss) - LOAD_OFFSET) {
131		/* page aligned when MMU used */
132		__bss_start = . ;
133			*(.bss*)
134			*(COMMON)
135		. = ALIGN (4) ;
136		__bss_stop = . ;
137	}
138	. = ALIGN(PAGE_SIZE);
139	_end = .;
140
141	DISCARDS
142}
143