xref: /openbmc/linux/arch/arc/kernel/vmlinux.lds.S (revision 151f4e2b)
1/*
2 * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9#include <asm-generic/vmlinux.lds.h>
10#include <asm/cache.h>
11#include <asm/page.h>
12#include <asm/thread_info.h>
13
14OUTPUT_ARCH(arc)
15ENTRY(res_service)
16
17#ifdef CONFIG_CPU_BIG_ENDIAN
18jiffies = jiffies_64 + 4;
19#else
20jiffies = jiffies_64;
21#endif
22
23SECTIONS
24{
25	/*
26	 * ICCM starts at 0x8000_0000. So if kernel is relocated to some other
27	 * address, make sure peripheral at 0x8z doesn't clash with ICCM
28	 * Essentially vector is also in ICCM.
29	 */
30
31	. = CONFIG_LINUX_LINK_BASE;
32
33	_int_vec_base_lds = .;
34	.vector : {
35		*(.vector)
36		. = ALIGN(PAGE_SIZE);
37	}
38
39#ifdef CONFIG_ARC_HAS_ICCM
40	.text.arcfp : {
41		*(.text.arcfp)
42		. = ALIGN(CONFIG_ARC_ICCM_SZ * 1024);
43	}
44#endif
45
46	/*
47	 * The reason for having a seperate subsection .init.ramfs is to
48	 * prevent objump from including it in kernel dumps
49	 *
50	 * Reason for having .init.ramfs above .init is to make sure that the
51	 * binary blob is tucked away to one side, reducing the displacement
52	 * between .init.text and .text, avoiding any possible relocation
53	 * errors because of calls from .init.text to .text
54	 * Yes such calls do exist. e.g.
55	 *	decompress_inflate.c:gunzip( ) -> zlib_inflate_workspace( )
56	 */
57
58	__init_begin = .;
59
60	.init.ramfs : { INIT_RAM_FS }
61
62	. = ALIGN(PAGE_SIZE);
63	_stext = .;
64
65	HEAD_TEXT_SECTION
66	INIT_TEXT_SECTION(L1_CACHE_BYTES)
67
68	/* INIT_DATA_SECTION open-coded: special INIT_RAM_FS handling */
69	.init.data : {
70		INIT_DATA
71		INIT_SETUP(L1_CACHE_BYTES)
72		INIT_CALLS
73		CON_INITCALL
74	}
75
76	.init.arch.info : {
77		__arch_info_begin = .;
78		*(.arch.info.init)
79		__arch_info_end = .;
80	}
81
82	PERCPU_SECTION(L1_CACHE_BYTES)
83
84	. = ALIGN(PAGE_SIZE);
85	__init_end = .;
86
87	.text : {
88		_text = .;
89		TEXT_TEXT
90		SCHED_TEXT
91		CPUIDLE_TEXT
92		LOCK_TEXT
93		KPROBES_TEXT
94		*(.fixup)
95		*(.gnu.warning)
96	}
97	EXCEPTION_TABLE(L1_CACHE_BYTES)
98	_etext = .;
99
100	_sdata = .;
101	RO_DATA_SECTION(PAGE_SIZE)
102
103	/*
104	 * 1. this is .data essentially
105	 * 2. THREAD_SIZE for init.task, must be kernel-stk sz aligned
106	 */
107	RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
108
109	_edata = .;
110
111	BSS_SECTION(4, 4, 4)
112
113#ifdef CONFIG_ARC_DW2_UNWIND
114	. = ALIGN(PAGE_SIZE);
115	.eh_frame  : {
116		__start_unwind = .;
117		*(.eh_frame)
118		__end_unwind = .;
119	}
120#else
121	/DISCARD/ : {	*(.eh_frame) }
122#endif
123
124	NOTES
125
126	. = ALIGN(PAGE_SIZE);
127	_end = . ;
128
129	STABS_DEBUG
130	DISCARDS
131
132	.arcextmap 0 : {
133		*(.gnu.linkonce.arcextmap.*)
134		*(.arcextmap.*)
135	}
136
137#ifndef CONFIG_DEBUG_INFO
138	/DISCARD/ : { *(.debug_frame) }
139	/DISCARD/ : { *(.debug_aranges) }
140	/DISCARD/ : { *(.debug_pubnames) }
141	/DISCARD/ : { *(.debug_info) }
142	/DISCARD/ : { *(.debug_abbrev) }
143	/DISCARD/ : { *(.debug_line) }
144	/DISCARD/ : { *(.debug_str) }
145	/DISCARD/ : { *(.debug_loc) }
146	/DISCARD/ : { *(.debug_macinfo) }
147	/DISCARD/ : { *(.debug_ranges) }
148#endif
149
150#ifdef CONFIG_ARC_HAS_DCCM
151	. = CONFIG_ARC_DCCM_BASE;
152	__arc_dccm_base = .;
153	.data.arcfp : {
154		*(.data.arcfp)
155	}
156	. = ALIGN(CONFIG_ARC_DCCM_SZ * 1024);
157#endif
158}
159