xref: /linux/arch/microblaze/kernel/vmlinux.lds.S (revision 2da68a77) 
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		CPUIDLE_TEXT
40		LOCK_TEXT
41		KPROBES_TEXT
42		IRQENTRY_TEXT
43		SOFTIRQENTRY_TEXT
44		. = ALIGN (4) ;
45		_etext = . ;
46	}
47
48	. = ALIGN (8) ;
49	__fdt_blob : AT(ADDR(__fdt_blob) - LOAD_OFFSET) {
50		_fdt_start = . ;		/* place for fdt blob */
51		*(__fdt_blob) ;			/* Any link-placed DTB */
52	        . = _fdt_start + 0x10000;	/* Pad up to 64kbyte */
53		_fdt_end = . ;
54	}
55
56	. = ALIGN(16);
57	RO_DATA(4096)
58
59	/*
60	 * sdata2 section can go anywhere, but must be word aligned
61	 * and SDA2_BASE must point to the middle of it
62	 */
63	.sdata2 : AT(ADDR(.sdata2) - LOAD_OFFSET) {
64		_ssrw = .;
65		. = ALIGN(PAGE_SIZE); /* page aligned when MMU used */
66		*(.sdata2)
67	. = ALIGN(8);
68	_essrw = .;
69	_ssrw_size = _essrw - _ssrw;
70	_KERNEL_SDA2_BASE_ = _ssrw + (_ssrw_size / 2);
71	}
72
73	_sdata = . ;
74	RW_DATA(32, PAGE_SIZE, THREAD_SIZE)
75	_edata = . ;
76
77	/* Under the microblaze ABI, .sdata and .sbss must be contiguous */
78	. = ALIGN(8);
79	.sdata : AT(ADDR(.sdata) - LOAD_OFFSET) {
80		_ssro = .;
81		*(.sdata)
82	}
83
84	.sbss :	AT(ADDR(.sbss) - LOAD_OFFSET) {
85		_ssbss = .;
86		*(.sbss)
87		_esbss = .;
88		_essro = .;
89		_ssro_size = _essro - _ssro ;
90		_KERNEL_SDA_BASE_ = _ssro + (_ssro_size / 2) ;
91	}
92
93	PERCPU_SECTION(L1_CACHE_BYTES)
94
95	. = ALIGN(PAGE_SIZE);
96	__init_begin = .;
97
98	INIT_TEXT_SECTION(PAGE_SIZE)
99
100	.init.data : AT(ADDR(.init.data) - LOAD_OFFSET) {
101		INIT_DATA
102	}
103
104	. = ALIGN(4);
105	.init.ivt : AT(ADDR(.init.ivt) - LOAD_OFFSET) {
106		__ivt_start = .;
107		*(.init.ivt)
108		__ivt_end = .;
109	}
110
111	.init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) {
112		INIT_SETUP(0)
113	}
114
115	.initcall.init : AT(ADDR(.initcall.init) - LOAD_OFFSET ) {
116		INIT_CALLS
117	}
118
119	.con_initcall.init : AT(ADDR(.con_initcall.init) - LOAD_OFFSET) {
120		CON_INITCALL
121	}
122
123	__init_end_before_initramfs = .;
124
125	.init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) {
126		INIT_RAM_FS
127	}
128
129	__init_end = .;
130
131	.bss ALIGN (PAGE_SIZE) : AT(ADDR(.bss) - LOAD_OFFSET) {
132		/* page aligned when MMU used */
133		__bss_start = . ;
134			*(.bss*)
135			*(COMMON)
136		. = ALIGN (4) ;
137		__bss_stop = . ;
138	}
139	. = ALIGN(PAGE_SIZE);
140	_end = .;
141
142	DISCARDS
143}
144