linker script: throw away .discard section
[deliverable/linux.git] / arch / mn10300 / kernel / vmlinux.lds.S
1 /* MN10300 Main kernel linker script
2 *
3 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public Licence
8 * as published by the Free Software Foundation; either version
9 * 2 of the Licence, or (at your option) any later version.
10 */
11 #define __VMLINUX_LDS__
12 #include <asm-generic/vmlinux.lds.h>
13 #include <asm/thread_info.h>
14 #include <asm/page.h>
15
16 OUTPUT_FORMAT("elf32-am33lin", "elf32-am33lin", "elf32-am33lin")
17 OUTPUT_ARCH(mn10300)
18 ENTRY(_start)
19 jiffies = jiffies_64;
20 #ifndef CONFIG_MN10300_CURRENT_IN_E2
21 current = __current;
22 #endif
23 SECTIONS
24 {
25 . = CONFIG_KERNEL_TEXT_ADDRESS;
26 /* read-only */
27 _stext = .;
28 _text = .; /* Text and read-only data */
29 .text : {
30 HEAD_TEXT
31 TEXT_TEXT
32 SCHED_TEXT
33 LOCK_TEXT
34 KPROBES_TEXT
35 *(.fixup)
36 *(.gnu.warning)
37 } = 0xcb
38
39 _etext = .; /* End of text section */
40
41 . = ALIGN(16); /* Exception table */
42 __start___ex_table = .;
43 __ex_table : { *(__ex_table) }
44 __stop___ex_table = .;
45
46 BUG_TABLE
47
48 RODATA
49
50 /* writeable */
51 .data : { /* Data */
52 DATA_DATA
53 CONSTRUCTORS
54 }
55
56 . = ALIGN(PAGE_SIZE);
57 __nosave_begin = .;
58 .data_nosave : { *(.data.nosave) }
59 . = ALIGN(PAGE_SIZE);
60 __nosave_end = .;
61
62 . = ALIGN(PAGE_SIZE);
63 .data.page_aligned : { *(.data.idt) }
64
65 . = ALIGN(32);
66 .data.cacheline_aligned : { *(.data.cacheline_aligned) }
67
68 /* rarely changed data like cpu maps */
69 . = ALIGN(32);
70 .data.read_mostly : AT(ADDR(.data.read_mostly)) {
71 *(.data.read_mostly)
72 _edata = .; /* End of data section */
73 }
74
75 . = ALIGN(THREAD_SIZE); /* init_task */
76 .data.init_task : { *(.data.init_task) }
77
78 /* might get freed after init */
79 . = ALIGN(PAGE_SIZE);
80 .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
81 __smp_locks = .;
82 *(.smp_locks)
83 __smp_locks_end = .;
84 }
85
86 /* will be freed after init */
87 . = ALIGN(PAGE_SIZE); /* Init code and data */
88 __init_begin = .;
89 .init.text : {
90 _sinittext = .;
91 *(.init.text)
92 _einittext = .;
93 }
94 .init.data : { *(.init.data) }
95 . = ALIGN(16);
96 __setup_start = .;
97 .setup.init : { KEEP(*(.init.setup)) }
98 __setup_end = .;
99
100 __initcall_start = .;
101 .initcall.init : {
102 INITCALLS
103 }
104 __initcall_end = .;
105 __con_initcall_start = .;
106 .con_initcall.init : { *(.con_initcall.init) }
107 __con_initcall_end = .;
108
109 SECURITY_INIT
110 . = ALIGN(4);
111 __alt_instructions = .;
112 .altinstructions : { *(.altinstructions) }
113 __alt_instructions_end = .;
114 .altinstr_replacement : { *(.altinstr_replacement) }
115 /* .exit.text is discard at runtime, not link time, to deal with references
116 from .altinstructions and .eh_frame */
117 .exit.text : { *(.exit.text) }
118 .exit.data : { *(.exit.data) }
119
120 #ifdef CONFIG_BLK_DEV_INITRD
121 . = ALIGN(PAGE_SIZE);
122 __initramfs_start = .;
123 .init.ramfs : { *(.init.ramfs) }
124 __initramfs_end = .;
125 #endif
126
127 PERCPU(32)
128 . = ALIGN(PAGE_SIZE);
129 __init_end = .;
130 /* freed after init ends here */
131
132 __bss_start = .; /* BSS */
133 .bss : {
134 *(.bss.page_aligned)
135 *(.bss)
136 }
137 . = ALIGN(4);
138 __bss_stop = .;
139
140 _end = . ;
141
142 /* This is where the kernel creates the early boot page tables */
143 . = ALIGN(PAGE_SIZE);
144 pg0 = .;
145
146 /* Sections to be discarded */
147 /DISCARD/ : {
148 *(.exitcall.exit)
149 *(.discard)
150 }
151
152 STABS_DEBUG
153
154 DWARF_DEBUG
155 }
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