Commit | Line | Data |
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1da177e4 LT |
1 | /* ld script to make x86-64 Linux kernel |
2 | * Written by Martin Mares <mj@atrey.karlin.mff.cuni.cz>; | |
3 | */ | |
4 | ||
5ded01e8 EB |
5 | #define LOAD_OFFSET __START_KERNEL_map |
6 | ||
1da177e4 | 7 | #include <asm-generic/vmlinux.lds.h> |
5ded01e8 | 8 | #include <asm/page.h> |
1da177e4 | 9 | |
bb33421d AK |
10 | #undef i386 /* in case the preprocessor is a 32bit one */ |
11 | ||
1da177e4 LT |
12 | OUTPUT_FORMAT("elf64-x86-64", "elf64-x86-64", "elf64-x86-64") |
13 | OUTPUT_ARCH(i386:x86-64) | |
14 | ENTRY(phys_startup_64) | |
15 | jiffies_64 = jiffies; | |
08269c6d | 16 | _proxy_pda = 1; |
f2a9e1de IC |
17 | PHDRS { |
18 | text PT_LOAD FLAGS(5); /* R_E */ | |
19 | data PT_LOAD FLAGS(7); /* RWE */ | |
20 | user PT_LOAD FLAGS(7); /* RWE */ | |
dbaab49f | 21 | data.init PT_LOAD FLAGS(7); /* RWE */ |
f2a9e1de IC |
22 | note PT_NOTE FLAGS(4); /* R__ */ |
23 | } | |
1da177e4 LT |
24 | SECTIONS |
25 | { | |
5ded01e8 | 26 | . = __START_KERNEL; |
1da177e4 LT |
27 | phys_startup_64 = startup_64 - LOAD_OFFSET; |
28 | _text = .; /* Text and read-only data */ | |
5ded01e8 | 29 | .text : AT(ADDR(.text) - LOAD_OFFSET) { |
4bdc3b7f | 30 | /* First the code that has to be first for bootstrapping */ |
eaeae0cc | 31 | *(.bootstrap.text) |
6fb14755 | 32 | _stext = .; |
4bdc3b7f AV |
33 | /* Then all the functions that are "hot" in profiles, to group them |
34 | onto the same hugetlb entry */ | |
35 | #include "functionlist" | |
36 | /* Then the rest */ | |
1da177e4 LT |
37 | *(.text) |
38 | SCHED_TEXT | |
39 | LOCK_TEXT | |
0f2fbdcb | 40 | KPROBES_TEXT |
1da177e4 LT |
41 | *(.fixup) |
42 | *(.gnu.warning) | |
f2a9e1de | 43 | } :text = 0x9090 |
5ded01e8 EB |
44 | /* out-of-line lock text */ |
45 | .text.lock : AT(ADDR(.text.lock) - LOAD_OFFSET) { *(.text.lock) } | |
1da177e4 LT |
46 | |
47 | _etext = .; /* End of text section */ | |
48 | ||
49 | . = ALIGN(16); /* Exception table */ | |
50 | __start___ex_table = .; | |
5ded01e8 | 51 | __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) { *(__ex_table) } |
1da177e4 LT |
52 | __stop___ex_table = .; |
53 | ||
c31a0bf3 JF |
54 | BUG_TABLE |
55 | ||
6fb14755 JB |
56 | RODATA |
57 | ||
3af98153 | 58 | . = ALIGN(PAGE_SIZE); /* Align data segment to page size boundary */ |
5ded01e8 EB |
59 | /* Data */ |
60 | .data : AT(ADDR(.data) - LOAD_OFFSET) { | |
1da177e4 LT |
61 | *(.data) |
62 | CONSTRUCTORS | |
f2a9e1de | 63 | } :data |
1da177e4 LT |
64 | |
65 | _edata = .; /* End of data section */ | |
66 | ||
5ded01e8 | 67 | . = ALIGN(PAGE_SIZE); |
1da177e4 | 68 | . = ALIGN(CONFIG_X86_L1_CACHE_BYTES); |
5ded01e8 EB |
69 | .data.cacheline_aligned : AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) { |
70 | *(.data.cacheline_aligned) | |
71 | } | |
e405d067 | 72 | . = ALIGN(CONFIG_X86_INTERNODE_CACHE_BYTES); |
6c036527 CL |
73 | .data.read_mostly : AT(ADDR(.data.read_mostly) - LOAD_OFFSET) { |
74 | *(.data.read_mostly) | |
75 | } | |
5ded01e8 EB |
76 | |
77 | #define VSYSCALL_ADDR (-10*1024*1024) | |
d312ceda AM |
78 | #define VSYSCALL_PHYS_ADDR ((LOADADDR(.data.read_mostly) + SIZEOF(.data.read_mostly) + 4095) & ~(4095)) |
79 | #define VSYSCALL_VIRT_ADDR ((ADDR(.data.read_mostly) + SIZEOF(.data.read_mostly) + 4095) & ~(4095)) | |
5ded01e8 EB |
80 | |
81 | #define VLOAD_OFFSET (VSYSCALL_ADDR - VSYSCALL_PHYS_ADDR) | |
82 | #define VLOAD(x) (ADDR(x) - VLOAD_OFFSET) | |
83 | ||
84 | #define VVIRT_OFFSET (VSYSCALL_ADDR - VSYSCALL_VIRT_ADDR) | |
85 | #define VVIRT(x) (ADDR(x) - VVIRT_OFFSET) | |
1da177e4 | 86 | |
5ded01e8 | 87 | . = VSYSCALL_ADDR; |
f2a9e1de | 88 | .vsyscall_0 : AT(VSYSCALL_PHYS_ADDR) { *(.vsyscall_0) } :user |
5ded01e8 | 89 | __vsyscall_0 = VSYSCALL_VIRT_ADDR; |
1da177e4 | 90 | |
1da177e4 | 91 | . = ALIGN(CONFIG_X86_L1_CACHE_BYTES); |
7460ed28 | 92 | .vsyscall_fn : AT(VLOAD(.vsyscall_fn)) { *(.vsyscall_fn) } |
93 | . = ALIGN(CONFIG_X86_L1_CACHE_BYTES); | |
94 | .vsyscall_gtod_data : AT(VLOAD(.vsyscall_gtod_data)) | |
95 | { *(.vsyscall_gtod_data) } | |
96 | vsyscall_gtod_data = VVIRT(.vsyscall_gtod_data); | |
5ded01e8 | 97 | |
c08c8205 VP |
98 | .vgetcpu_mode : AT(VLOAD(.vgetcpu_mode)) { *(.vgetcpu_mode) } |
99 | vgetcpu_mode = VVIRT(.vgetcpu_mode); | |
100 | ||
1da177e4 | 101 | . = ALIGN(CONFIG_X86_L1_CACHE_BYTES); |
5ded01e8 EB |
102 | .jiffies : AT(VLOAD(.jiffies)) { *(.jiffies) } |
103 | jiffies = VVIRT(.jiffies); | |
104 | ||
7460ed28 | 105 | .vsyscall_1 ADDR(.vsyscall_0) + 1024: AT(VLOAD(.vsyscall_1)) |
106 | { *(.vsyscall_1) } | |
107 | .vsyscall_2 ADDR(.vsyscall_0) + 2048: AT(VLOAD(.vsyscall_2)) | |
108 | { *(.vsyscall_2) } | |
109 | .vsyscall_3 ADDR(.vsyscall_0) + 3072: AT(VLOAD(.vsyscall_3)) | |
110 | { *(.vsyscall_3) } | |
5ded01e8 EB |
111 | |
112 | . = VSYSCALL_VIRT_ADDR + 4096; | |
113 | ||
114 | #undef VSYSCALL_ADDR | |
115 | #undef VSYSCALL_PHYS_ADDR | |
116 | #undef VSYSCALL_VIRT_ADDR | |
117 | #undef VLOAD_OFFSET | |
118 | #undef VLOAD | |
119 | #undef VVIRT_OFFSET | |
120 | #undef VVIRT | |
1da177e4 LT |
121 | |
122 | . = ALIGN(8192); /* init_task */ | |
5ded01e8 EB |
123 | .data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) { |
124 | *(.data.init_task) | |
dbaab49f | 125 | }:data.init |
1da177e4 LT |
126 | |
127 | . = ALIGN(4096); | |
5ded01e8 EB |
128 | .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) { |
129 | *(.data.page_aligned) | |
130 | } | |
1da177e4 | 131 | |
d167a518 GH |
132 | /* might get freed after init */ |
133 | . = ALIGN(4096); | |
134 | __smp_alt_begin = .; | |
135 | __smp_alt_instructions = .; | |
136 | .smp_altinstructions : AT(ADDR(.smp_altinstructions) - LOAD_OFFSET) { | |
137 | *(.smp_altinstructions) | |
138 | } | |
139 | __smp_alt_instructions_end = .; | |
140 | . = ALIGN(8); | |
141 | __smp_locks = .; | |
142 | .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) { | |
143 | *(.smp_locks) | |
144 | } | |
145 | __smp_locks_end = .; | |
146 | .smp_altinstr_replacement : AT(ADDR(.smp_altinstr_replacement) - LOAD_OFFSET) { | |
147 | *(.smp_altinstr_replacement) | |
148 | } | |
149 | . = ALIGN(4096); | |
150 | __smp_alt_end = .; | |
151 | ||
1da177e4 LT |
152 | . = ALIGN(4096); /* Init code and data */ |
153 | __init_begin = .; | |
5ded01e8 | 154 | .init.text : AT(ADDR(.init.text) - LOAD_OFFSET) { |
1da177e4 LT |
155 | _sinittext = .; |
156 | *(.init.text) | |
157 | _einittext = .; | |
158 | } | |
159 | __initdata_begin = .; | |
5ded01e8 | 160 | .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) { *(.init.data) } |
1da177e4 LT |
161 | __initdata_end = .; |
162 | . = ALIGN(16); | |
163 | __setup_start = .; | |
5ded01e8 | 164 | .init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) { *(.init.setup) } |
1da177e4 LT |
165 | __setup_end = .; |
166 | __initcall_start = .; | |
5ded01e8 | 167 | .initcall.init : AT(ADDR(.initcall.init) - LOAD_OFFSET) { |
61ce1efe | 168 | INITCALLS |
1da177e4 LT |
169 | } |
170 | __initcall_end = .; | |
171 | __con_initcall_start = .; | |
5ded01e8 EB |
172 | .con_initcall.init : AT(ADDR(.con_initcall.init) - LOAD_OFFSET) { |
173 | *(.con_initcall.init) | |
174 | } | |
1da177e4 LT |
175 | __con_initcall_end = .; |
176 | SECURITY_INIT | |
177 | . = ALIGN(8); | |
178 | __alt_instructions = .; | |
5ded01e8 EB |
179 | .altinstructions : AT(ADDR(.altinstructions) - LOAD_OFFSET) { |
180 | *(.altinstructions) | |
181 | } | |
1da177e4 | 182 | __alt_instructions_end = .; |
5ded01e8 EB |
183 | .altinstr_replacement : AT(ADDR(.altinstr_replacement) - LOAD_OFFSET) { |
184 | *(.altinstr_replacement) | |
185 | } | |
1da177e4 LT |
186 | /* .exit.text is discard at runtime, not link time, to deal with references |
187 | from .altinstructions and .eh_frame */ | |
5ded01e8 EB |
188 | .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) { *(.exit.text) } |
189 | .exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) { *(.exit.data) } | |
67d38229 JPS |
190 | |
191 | #ifdef CONFIG_BLK_DEV_INITRD | |
1da177e4 LT |
192 | . = ALIGN(4096); |
193 | __initramfs_start = .; | |
5ded01e8 | 194 | .init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) { *(.init.ramfs) } |
14c3f855 | 195 | __initramfs_end = .; |
67d38229 JPS |
196 | #endif |
197 | ||
b6e3590f | 198 | . = ALIGN(4096); |
1da177e4 | 199 | __per_cpu_start = .; |
5ded01e8 | 200 | .data.percpu : AT(ADDR(.data.percpu) - LOAD_OFFSET) { *(.data.percpu) } |
1da177e4 | 201 | __per_cpu_end = .; |
b38337a6 AK |
202 | . = ALIGN(4096); |
203 | __init_end = .; | |
1da177e4 LT |
204 | |
205 | . = ALIGN(4096); | |
206 | __nosave_begin = .; | |
5ded01e8 | 207 | .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) { *(.data.nosave) } |
1da177e4 LT |
208 | . = ALIGN(4096); |
209 | __nosave_end = .; | |
210 | ||
120b1142 VG |
211 | __bss_start = .; /* BSS */ |
212 | .bss : AT(ADDR(.bss) - LOAD_OFFSET) { | |
213 | *(.bss.page_aligned) | |
214 | *(.bss) | |
215 | } | |
216 | __bss_stop = .; | |
217 | ||
1da177e4 LT |
218 | _end = . ; |
219 | ||
220 | /* Sections to be discarded */ | |
221 | /DISCARD/ : { | |
222 | *(.exitcall.exit) | |
1da177e4 | 223 | *(.eh_frame) |
1da177e4 LT |
224 | } |
225 | ||
4413a511 PBG |
226 | STABS_DEBUG |
227 | ||
228 | DWARF_DEBUG | |
1da177e4 | 229 | } |