summaryrefslogtreecommitdiffstats
path: root/arch/parisc/kernel/vmlinux.lds.S
blob: b445e47903cfd0b813035c2056f11a4f818cf6d2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
/* SPDX-License-Identifier: GPL-2.0 */
/*    Kernel link layout for various "sections"
 *
 *    Copyright (C) 1999-2003 Matthew Wilcox <willy at parisc-linux.org>
 *    Copyright (C) 2000-2003 Paul Bame <bame at parisc-linux.org>
 *    Copyright (C) 2000 John Marvin <jsm at parisc-linux.org>
 *    Copyright (C) 2000 Michael Ang <mang with subcarrier.org>
 *    Copyright (C) 2002 Randolph Chung <tausq with parisc-linux.org>
 *    Copyright (C) 2003 James Bottomley <jejb with parisc-linux.org>
 *    Copyright (C) 2006-2013 Helge Deller <deller@gmx.de>
 */

/*
 * Put page table entries (swapper_pg_dir) as the first thing in .bss. This
 * will ensure that it has .bss alignment (PAGE_SIZE).
 */
#define BSS_FIRST_SECTIONS	*(.data..vm0.pmd) \
				*(.data..vm0.pgd) \
				*(.data..vm0.pte)

#define CC_USING_PATCHABLE_FUNCTION_ENTRY
#define RO_EXCEPTION_TABLE_ALIGN	8

#include <asm-generic/vmlinux.lds.h>

/* needed for the processor specific cache alignment size */	
#include <asm/cache.h>
#include <asm/page.h>
#include <asm/asm-offsets.h>
#include <asm/thread_info.h>
	
/* ld script to make hppa Linux kernel */
#ifndef CONFIG_64BIT
OUTPUT_FORMAT("elf32-hppa-linux")
OUTPUT_ARCH(hppa)
#else
OUTPUT_FORMAT("elf64-hppa-linux")
OUTPUT_ARCH(hppa:hppa2.0w)
#endif

#define EXIT_TEXT_SECTIONS()	.exit.text : { EXIT_TEXT }
#if !defined(CONFIG_64BIT) || defined(CONFIG_MLONGCALLS)
#define MLONGCALL_KEEP(x)
#define MLONGCALL_DISCARD(x)	x
#else
#define MLONGCALL_KEEP(x)	x
#define MLONGCALL_DISCARD(x)
#endif

ENTRY(parisc_kernel_start)
#ifndef CONFIG_64BIT
jiffies = jiffies_64 + 4;
#else
jiffies = jiffies_64;
#endif
SECTIONS
{
	. = KERNEL_BINARY_TEXT_START;

	__init_begin = .;
	HEAD_TEXT_SECTION
	MLONGCALL_DISCARD(INIT_TEXT_SECTION(8))

	. = ALIGN(PAGE_SIZE);
	INIT_DATA_SECTION(PAGE_SIZE)
	MLONGCALL_DISCARD(EXIT_TEXT_SECTIONS())
	.exit.data :
	{
		EXIT_DATA
	}
	PERCPU_SECTION(8)
	. = ALIGN(4);
	.altinstructions : {
		__alt_instructions = .;
		*(.altinstructions)
		__alt_instructions_end = .;
	}
	. = ALIGN(HUGEPAGE_SIZE);
	__init_end = .;
	/* freed after init ends here */

	_text = .;		/* Text and read-only data */
	_stext = .;
	MLONGCALL_KEEP(INIT_TEXT_SECTION(8))
	.text ALIGN(PAGE_SIZE) : {
		TEXT_TEXT
		LOCK_TEXT
		SCHED_TEXT
		KPROBES_TEXT
		IRQENTRY_TEXT
		SOFTIRQENTRY_TEXT
		*(.text.do_softirq)
		*(.text.sys_exit)
		*(.text.do_sigaltstack)
		*(.text.do_fork)
		*(.text.div)
		*($$*)			/* millicode routines */
		*(.text.*)
		*(.fixup)
		*(.lock.text)		/* out-of-line lock text */
		*(.gnu.warning)
	}
	MLONGCALL_KEEP(EXIT_TEXT_SECTIONS())
	. = ALIGN(PAGE_SIZE);
	_etext = .;
	/* End of text section */

	/* Start of data section */
	_sdata = .;

	/* Architecturally we need to keep __gp below 0x1000000 and thus
	 * in front of RO_DATA() which stores lots of tracepoint
	 * and ftrace symbols. */
#ifdef CONFIG_64BIT
	. = ALIGN(16);
	/* Linkage tables */
	.opd : {
		__start_opd = .;
		*(.opd)
		__end_opd = .;
	} PROVIDE (__gp = .);
	.plt : {
		*(.plt)
	}
	.dlt : {
		*(.dlt)
	}
#endif

	RO_DATA(PAGE_SIZE)

	/* unwind info */
	. = ALIGN(4);
	.PARISC.unwind : {
		__start___unwind = .;
		*(.PARISC.unwind)
		__stop___unwind = .;
	}

	/* writeable */
	/* Make sure this is page aligned so
	 * that we can properly leave these
	 * as writable
	 */
	. = ALIGN(HUGEPAGE_SIZE);
	data_start = .;

	/* Data */
	RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, PAGE_SIZE)

	/* PA-RISC locks requires 16-byte alignment */
	. = ALIGN(16);
	.data..lock_aligned : {
		*(.data..lock_aligned)
	}

	/* End of data section */
	. = ALIGN(PAGE_SIZE);
	_edata = .;

	/* BSS */
	BSS_SECTION(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE)

	. = ALIGN(HUGEPAGE_SIZE);
	_end = . ;

	STABS_DEBUG
	ELF_DETAILS
	.note 0 : { *(.note) }

	/* Sections to be discarded */
	DISCARDS
	/DISCARD/ : {
#ifdef CONFIG_64BIT
		/* temporary hack until binutils is fixed to not emit these
	 	 * for static binaries
		 */
		*(.interp)
		*(.dynsym)
		*(.dynstr)
		*(.dynamic)
		*(.hash)
		*(.gnu.hash)
#endif
	}
}