Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1/* SPDX-License-Identifier: GPL-2.0 */
2/* Kernel link layout for various "sections"
3 *
4 * Copyright (C) 1999-2003 Matthew Wilcox <willy at parisc-linux.org>
5 * Copyright (C) 2000-2003 Paul Bame <bame at parisc-linux.org>
6 * Copyright (C) 2000 John Marvin <jsm at parisc-linux.org>
7 * Copyright (C) 2000 Michael Ang <mang with subcarrier.org>
8 * Copyright (C) 2002 Randolph Chung <tausq with parisc-linux.org>
9 * Copyright (C) 2003 James Bottomley <jejb with parisc-linux.org>
10 * Copyright (C) 2006-2013 Helge Deller <deller@gmx.de>
11 */
12
13/*
14 * Put page table entries (swapper_pg_dir) as the first thing in .bss. This
15 * will ensure that it has .bss alignment (PAGE_SIZE).
16 */
17#define BSS_FIRST_SECTIONS *(.data..vm0.pmd) \
18 *(.data..vm0.pgd) \
19 *(.data..vm0.pte)
20
21#define CC_USING_PATCHABLE_FUNCTION_ENTRY
22#define RO_EXCEPTION_TABLE_ALIGN 8
23
24#include <asm-generic/vmlinux.lds.h>
25
26/* needed for the processor specific cache alignment size */
27#include <asm/cache.h>
28#include <asm/page.h>
29#include <asm/asm-offsets.h>
30#include <asm/thread_info.h>
31
32/* ld script to make hppa Linux kernel */
33#ifndef CONFIG_64BIT
34OUTPUT_FORMAT("elf32-hppa-linux")
35OUTPUT_ARCH(hppa)
36#else
37OUTPUT_FORMAT("elf64-hppa-linux")
38OUTPUT_ARCH(hppa:hppa2.0w)
39#endif
40
41#define EXIT_TEXT_SECTIONS() .exit.text : { EXIT_TEXT }
42#if !defined(CONFIG_64BIT) || defined(CONFIG_MLONGCALLS)
43#define MLONGCALL_KEEP(x)
44#define MLONGCALL_DISCARD(x) x
45#else
46#define MLONGCALL_KEEP(x) x
47#define MLONGCALL_DISCARD(x)
48#endif
49
50ENTRY(parisc_kernel_start)
51#ifndef CONFIG_64BIT
52jiffies = jiffies_64 + 4;
53#else
54jiffies = jiffies_64;
55#endif
56SECTIONS
57{
58 . = KERNEL_BINARY_TEXT_START;
59
60 __init_begin = .;
61 HEAD_TEXT_SECTION
62 MLONGCALL_DISCARD(INIT_TEXT_SECTION(8))
63
64 . = ALIGN(PAGE_SIZE);
65 INIT_DATA_SECTION(PAGE_SIZE)
66 MLONGCALL_DISCARD(EXIT_TEXT_SECTIONS())
67 .exit.data :
68 {
69 EXIT_DATA
70 }
71 PERCPU_SECTION(8)
72 . = ALIGN(4);
73 .altinstructions : {
74 __alt_instructions = .;
75 *(.altinstructions)
76 __alt_instructions_end = .;
77 }
78 . = ALIGN(HUGEPAGE_SIZE);
79 __init_end = .;
80 /* freed after init ends here */
81
82 _text = .; /* Text and read-only data */
83 _stext = .;
84 MLONGCALL_KEEP(INIT_TEXT_SECTION(8))
85 .text ALIGN(PAGE_SIZE) : {
86 TEXT_TEXT
87 LOCK_TEXT
88 SCHED_TEXT
89 CPUIDLE_TEXT
90 KPROBES_TEXT
91 IRQENTRY_TEXT
92 SOFTIRQENTRY_TEXT
93 *(.text.do_softirq)
94 *(.text.sys_exit)
95 *(.text.do_sigaltstack)
96 *(.text.do_fork)
97 *(.text.div)
98 *($$*) /* millicode routines */
99 *(.text.*)
100 *(.fixup)
101 *(.lock.text) /* out-of-line lock text */
102 *(.gnu.warning)
103 }
104 MLONGCALL_KEEP(EXIT_TEXT_SECTIONS())
105 . = ALIGN(PAGE_SIZE);
106 _etext = .;
107 /* End of text section */
108
109 /* Start of data section */
110 _sdata = .;
111
112 /* Architecturally we need to keep __gp below 0x1000000 and thus
113 * in front of RO_DATA() which stores lots of tracepoint
114 * and ftrace symbols. */
115#ifdef CONFIG_64BIT
116 . = ALIGN(16);
117 /* Linkage tables */
118 .opd : {
119 __start_opd = .;
120 *(.opd)
121 __end_opd = .;
122 } PROVIDE (__gp = .);
123 .plt : {
124 *(.plt)
125 }
126 .dlt : {
127 *(.dlt)
128 }
129#endif
130
131 RO_DATA(8)
132
133 /* unwind info */
134 .PARISC.unwind : {
135 __start___unwind = .;
136 *(.PARISC.unwind)
137 __stop___unwind = .;
138 }
139
140 /* writeable */
141 /* Make sure this is page aligned so
142 * that we can properly leave these
143 * as writable
144 */
145 . = ALIGN(HUGEPAGE_SIZE);
146 data_start = .;
147
148 /* Data */
149 RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, PAGE_SIZE)
150
151 /* PA-RISC locks requires 16-byte alignment */
152 . = ALIGN(16);
153 .data..lock_aligned : {
154 *(.data..lock_aligned)
155 }
156
157 /* End of data section */
158 _edata = .;
159
160 /* BSS */
161 BSS_SECTION(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE)
162
163 . = ALIGN(HUGEPAGE_SIZE);
164 _end = . ;
165
166 STABS_DEBUG
167 .note 0 : { *(.note) }
168
169 /* Sections to be discarded */
170 DISCARDS
171 /DISCARD/ : {
172#ifdef CONFIG_64BIT
173 /* temporary hack until binutils is fixed to not emit these
174 * for static binaries
175 */
176 *(.interp)
177 *(.dynsym)
178 *(.dynstr)
179 *(.dynamic)
180 *(.hash)
181 *(.gnu.hash)
182#endif
183 }
184}