xref: /linux/arch/arc/kernel/vmlinux.lds.S (revision f14aa5ea415b8add245e976bfab96a12986c6843)
1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
4 */
5
6#include <asm-generic/vmlinux.lds.h>
7#include <asm/cache.h>
8#include <asm/page.h>
9#include <asm/thread_info.h>
10
11OUTPUT_ARCH(arc)
12ENTRY(res_service)
13
14#ifdef CONFIG_CPU_BIG_ENDIAN
15jiffies = jiffies_64 + 4;
16#else
17jiffies = jiffies_64;
18#endif
19
20SECTIONS
21{
22	/*
23	 * ICCM starts at 0x8000_0000. So if kernel is relocated to some other
24	 * address, make sure peripheral at 0x8z doesn't clash with ICCM
25	 * Essentially vector is also in ICCM.
26	 */
27
28	. = CONFIG_LINUX_LINK_BASE;
29
30	_int_vec_base_lds = .;
31	.vector : {
32		*(.vector)
33		. = ALIGN(PAGE_SIZE);
34	}
35
36#ifdef CONFIG_ARC_HAS_ICCM
37	.text.arcfp : {
38		*(.text.arcfp)
39		. = ALIGN(CONFIG_ARC_ICCM_SZ * 1024);
40	}
41#endif
42
43	/*
44	 * The reason for having a separate subsection .init.ramfs is to
45	 * prevent objdump from including it in kernel dumps
46	 *
47	 * Reason for having .init.ramfs above .init is to make sure that the
48	 * binary blob is tucked away to one side, reducing the displacement
49	 * between .init.text and .text, avoiding any possible relocation
50	 * errors because of calls from .init.text to .text
51	 * Yes such calls do exist. e.g.
52	 *	decompress_inflate.c:gunzip( ) -> zlib_inflate_workspace( )
53	 */
54
55	__init_begin = .;
56
57	.init.ramfs : { INIT_RAM_FS }
58
59	. = ALIGN(PAGE_SIZE);
60
61	HEAD_TEXT_SECTION
62	INIT_TEXT_SECTION(L1_CACHE_BYTES)
63
64	/* INIT_DATA_SECTION open-coded: special INIT_RAM_FS handling */
65	.init.data : {
66		INIT_DATA
67		INIT_SETUP(L1_CACHE_BYTES)
68		INIT_CALLS
69		CON_INITCALL
70	}
71
72	.init.arch.info : {
73		__arch_info_begin = .;
74		*(.arch.info.init)
75		__arch_info_end = .;
76	}
77
78	PERCPU_SECTION(L1_CACHE_BYTES)
79
80	. = ALIGN(PAGE_SIZE);
81	__init_end = .;
82
83	.text : {
84		_text = .;
85		_stext = .;
86		TEXT_TEXT
87		SCHED_TEXT
88		LOCK_TEXT
89		KPROBES_TEXT
90		IRQENTRY_TEXT
91		SOFTIRQENTRY_TEXT
92		*(.fixup)
93		*(.gnu.warning)
94	}
95	EXCEPTION_TABLE(L1_CACHE_BYTES)
96	_etext = .;
97
98	_sdata = .;
99	RO_DATA(PAGE_SIZE)
100
101	/*
102	 * 1. this is .data essentially
103	 * 2. THREAD_SIZE for init.task, must be kernel-stk sz aligned
104	 */
105	RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
106
107	_edata = .;
108
109	BSS_SECTION(4, 4, 4)
110
111#ifdef CONFIG_ARC_DW2_UNWIND
112	. = ALIGN(PAGE_SIZE);
113	.eh_frame  : {
114		__start_unwind = .;
115		*(.eh_frame)
116		__end_unwind = .;
117	}
118#else
119	/DISCARD/ : {	*(.eh_frame) }
120#endif
121
122	. = ALIGN(PAGE_SIZE);
123	_end = . ;
124
125	STABS_DEBUG
126	ELF_DETAILS
127	DISCARDS
128
129	.arcextmap 0 : {
130		*(.gnu.linkonce.arcextmap.*)
131		*(.arcextmap.*)
132	}
133
134#ifndef CONFIG_DEBUG_INFO
135	/DISCARD/ : { *(.debug_frame) }
136	/DISCARD/ : { *(.debug_aranges) }
137	/DISCARD/ : { *(.debug_pubnames) }
138	/DISCARD/ : { *(.debug_info) }
139	/DISCARD/ : { *(.debug_abbrev) }
140	/DISCARD/ : { *(.debug_line) }
141	/DISCARD/ : { *(.debug_str) }
142	/DISCARD/ : { *(.debug_loc) }
143	/DISCARD/ : { *(.debug_macinfo) }
144	/DISCARD/ : { *(.debug_ranges) }
145#endif
146
147#ifdef CONFIG_ARC_HAS_DCCM
148	. = CONFIG_ARC_DCCM_BASE;
149	__arc_dccm_base = .;
150	.data.arcfp : {
151		*(.data.arcfp)
152	}
153	. = ALIGN(CONFIG_ARC_DCCM_SZ * 1024);
154#endif
155}
156