blob: edb24aa714b4e0d58f1bbebe70b1e699abb16ce7 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* ld script to make x86-64 Linux kernel
2 * Written by Martin Mares <mj@atrey.karlin.mff.cuni.cz>;
3 */
4
Eric W. Biederman5ded01e2005-06-25 14:57:48 -07005#define LOAD_OFFSET __START_KERNEL_map
6
Linus Torvalds1da177e2005-04-16 15:20:36 -07007#include <asm-generic/vmlinux.lds.h>
Eric W. Biederman5ded01e2005-06-25 14:57:48 -07008#include <asm/page.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -07009
Andi Kleenbb334212006-01-11 22:43:54 +010010#undef i386 /* in case the preprocessor is a 32bit one */
11
Linus Torvalds1da177e2005-04-16 15:20:36 -070012OUTPUT_FORMAT("elf64-x86-64", "elf64-x86-64", "elf64-x86-64")
13OUTPUT_ARCH(i386:x86-64)
14ENTRY(phys_startup_64)
15jiffies_64 = jiffies;
Ian Campbellf2a9e1d2006-09-26 10:52:38 +020016PHDRS {
17 text PT_LOAD FLAGS(5); /* R_E */
18 data PT_LOAD FLAGS(7); /* RWE */
19 user PT_LOAD FLAGS(7); /* RWE */
Vivek Goyaldbaab492006-10-21 18:37:03 +020020 data.init PT_LOAD FLAGS(7); /* RWE */
Ian Campbellf2a9e1d2006-09-26 10:52:38 +020021 note PT_NOTE FLAGS(4); /* R__ */
22}
Linus Torvalds1da177e2005-04-16 15:20:36 -070023SECTIONS
24{
Eric W. Biederman5ded01e2005-06-25 14:57:48 -070025 . = __START_KERNEL;
Linus Torvalds1da177e2005-04-16 15:20:36 -070026 phys_startup_64 = startup_64 - LOAD_OFFSET;
27 _text = .; /* Text and read-only data */
Eric W. Biederman5ded01e2005-06-25 14:57:48 -070028 .text : AT(ADDR(.text) - LOAD_OFFSET) {
Arjan van de Ven4bdc3b72006-03-25 16:30:49 +010029 /* First the code that has to be first for bootstrapping */
Arjan van de Veneaeae0c2006-03-25 16:30:28 +010030 *(.bootstrap.text)
Arjan van de Ven4bdc3b72006-03-25 16:30:49 +010031 /* Then all the functions that are "hot" in profiles, to group them
32 onto the same hugetlb entry */
33 #include "functionlist"
34 /* Then the rest */
Linus Torvalds1da177e2005-04-16 15:20:36 -070035 *(.text)
36 SCHED_TEXT
37 LOCK_TEXT
Prasanna S Panchamukhi0f2fbdc2005-09-06 15:19:28 -070038 KPROBES_TEXT
Linus Torvalds1da177e2005-04-16 15:20:36 -070039 *(.fixup)
40 *(.gnu.warning)
Ian Campbellf2a9e1d2006-09-26 10:52:38 +020041 } :text = 0x9090
Eric W. Biederman5ded01e2005-06-25 14:57:48 -070042 /* out-of-line lock text */
43 .text.lock : AT(ADDR(.text.lock) - LOAD_OFFSET) { *(.text.lock) }
Linus Torvalds1da177e2005-04-16 15:20:36 -070044
45 _etext = .; /* End of text section */
46
47 . = ALIGN(16); /* Exception table */
48 __start___ex_table = .;
Eric W. Biederman5ded01e2005-06-25 14:57:48 -070049 __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) { *(__ex_table) }
Linus Torvalds1da177e2005-04-16 15:20:36 -070050 __stop___ex_table = .;
51
52 RODATA
53
Jan Beulichb538ed22006-06-26 13:57:32 +020054#ifdef CONFIG_STACK_UNWIND
55 . = ALIGN(8);
56 .eh_frame : AT(ADDR(.eh_frame) - LOAD_OFFSET) {
57 __start_unwind = .;
58 *(.eh_frame)
59 __end_unwind = .;
60 }
61#endif
62
Eric W. Biederman5ded01e2005-06-25 14:57:48 -070063 /* Data */
64 .data : AT(ADDR(.data) - LOAD_OFFSET) {
Linus Torvalds1da177e2005-04-16 15:20:36 -070065 *(.data)
66 CONSTRUCTORS
Ian Campbellf2a9e1d2006-09-26 10:52:38 +020067 } :data
Linus Torvalds1da177e2005-04-16 15:20:36 -070068
69 _edata = .; /* End of data section */
70
Eric W. Biederman5ded01e2005-06-25 14:57:48 -070071 . = ALIGN(PAGE_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -070072 . = ALIGN(CONFIG_X86_L1_CACHE_BYTES);
Eric W. Biederman5ded01e2005-06-25 14:57:48 -070073 .data.cacheline_aligned : AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) {
74 *(.data.cacheline_aligned)
75 }
Ravikiran G Thirumalaie405d062006-04-07 19:50:09 +020076 . = ALIGN(CONFIG_X86_INTERNODE_CACHE_BYTES);
Christoph Lameter6c036522005-07-07 17:56:59 -070077 .data.read_mostly : AT(ADDR(.data.read_mostly) - LOAD_OFFSET) {
78 *(.data.read_mostly)
79 }
Linus Torvalds1da177e2005-04-16 15:20:36 -070080
Eric W. Biederman5ded01e2005-06-25 14:57:48 -070081#define VSYSCALL_ADDR (-10*1024*1024)
Andrew Mortond312ced2005-07-12 13:58:13 -070082#define VSYSCALL_PHYS_ADDR ((LOADADDR(.data.read_mostly) + SIZEOF(.data.read_mostly) + 4095) & ~(4095))
83#define VSYSCALL_VIRT_ADDR ((ADDR(.data.read_mostly) + SIZEOF(.data.read_mostly) + 4095) & ~(4095))
Linus Torvalds1da177e2005-04-16 15:20:36 -070084
Eric W. Biederman5ded01e2005-06-25 14:57:48 -070085#define VLOAD_OFFSET (VSYSCALL_ADDR - VSYSCALL_PHYS_ADDR)
86#define VLOAD(x) (ADDR(x) - VLOAD_OFFSET)
87
88#define VVIRT_OFFSET (VSYSCALL_ADDR - VSYSCALL_VIRT_ADDR)
89#define VVIRT(x) (ADDR(x) - VVIRT_OFFSET)
90
91 . = VSYSCALL_ADDR;
Ian Campbellf2a9e1d2006-09-26 10:52:38 +020092 .vsyscall_0 : AT(VSYSCALL_PHYS_ADDR) { *(.vsyscall_0) } :user
Eric W. Biederman5ded01e2005-06-25 14:57:48 -070093 __vsyscall_0 = VSYSCALL_VIRT_ADDR;
94
Linus Torvalds1da177e2005-04-16 15:20:36 -070095 . = ALIGN(CONFIG_X86_L1_CACHE_BYTES);
Eric W. Biederman5ded01e2005-06-25 14:57:48 -070096 .xtime_lock : AT(VLOAD(.xtime_lock)) { *(.xtime_lock) }
97 xtime_lock = VVIRT(.xtime_lock);
98
99 .vxtime : AT(VLOAD(.vxtime)) { *(.vxtime) }
100 vxtime = VVIRT(.vxtime);
101
Vojtech Pavlikc08c8202006-09-26 10:52:28 +0200102 .vgetcpu_mode : AT(VLOAD(.vgetcpu_mode)) { *(.vgetcpu_mode) }
103 vgetcpu_mode = VVIRT(.vgetcpu_mode);
104
Eric W. Biederman5ded01e2005-06-25 14:57:48 -0700105 .sys_tz : AT(VLOAD(.sys_tz)) { *(.sys_tz) }
106 sys_tz = VVIRT(.sys_tz);
107
108 .sysctl_vsyscall : AT(VLOAD(.sysctl_vsyscall)) { *(.sysctl_vsyscall) }
109 sysctl_vsyscall = VVIRT(.sysctl_vsyscall);
110
111 .xtime : AT(VLOAD(.xtime)) { *(.xtime) }
112 xtime = VVIRT(.xtime);
113
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114 . = ALIGN(CONFIG_X86_L1_CACHE_BYTES);
Eric W. Biederman5ded01e2005-06-25 14:57:48 -0700115 .jiffies : AT(VLOAD(.jiffies)) { *(.jiffies) }
116 jiffies = VVIRT(.jiffies);
117
118 .vsyscall_1 ADDR(.vsyscall_0) + 1024: AT(VLOAD(.vsyscall_1)) { *(.vsyscall_1) }
119 .vsyscall_2 ADDR(.vsyscall_0) + 2048: AT(VLOAD(.vsyscall_2)) { *(.vsyscall_2) }
120 .vsyscall_3 ADDR(.vsyscall_0) + 3072: AT(VLOAD(.vsyscall_3)) { *(.vsyscall_3) }
121
122 . = VSYSCALL_VIRT_ADDR + 4096;
123
124#undef VSYSCALL_ADDR
125#undef VSYSCALL_PHYS_ADDR
126#undef VSYSCALL_VIRT_ADDR
127#undef VLOAD_OFFSET
128#undef VLOAD
129#undef VVIRT_OFFSET
130#undef VVIRT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700131
132 . = ALIGN(8192); /* init_task */
Eric W. Biederman5ded01e2005-06-25 14:57:48 -0700133 .data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) {
134 *(.data.init_task)
Vivek Goyaldbaab492006-10-21 18:37:03 +0200135 }:data.init
Linus Torvalds1da177e2005-04-16 15:20:36 -0700136
137 . = ALIGN(4096);
Eric W. Biederman5ded01e2005-06-25 14:57:48 -0700138 .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) {
139 *(.data.page_aligned)
140 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141
Gerd Hoffmannd167a512006-06-26 13:56:16 +0200142 /* might get freed after init */
143 . = ALIGN(4096);
144 __smp_alt_begin = .;
145 __smp_alt_instructions = .;
146 .smp_altinstructions : AT(ADDR(.smp_altinstructions) - LOAD_OFFSET) {
147 *(.smp_altinstructions)
148 }
149 __smp_alt_instructions_end = .;
150 . = ALIGN(8);
151 __smp_locks = .;
152 .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
153 *(.smp_locks)
154 }
155 __smp_locks_end = .;
156 .smp_altinstr_replacement : AT(ADDR(.smp_altinstr_replacement) - LOAD_OFFSET) {
157 *(.smp_altinstr_replacement)
158 }
159 . = ALIGN(4096);
160 __smp_alt_end = .;
161
Linus Torvalds1da177e2005-04-16 15:20:36 -0700162 . = ALIGN(4096); /* Init code and data */
163 __init_begin = .;
Eric W. Biederman5ded01e2005-06-25 14:57:48 -0700164 .init.text : AT(ADDR(.init.text) - LOAD_OFFSET) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700165 _sinittext = .;
166 *(.init.text)
167 _einittext = .;
168 }
169 __initdata_begin = .;
Eric W. Biederman5ded01e2005-06-25 14:57:48 -0700170 .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) { *(.init.data) }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171 __initdata_end = .;
172 . = ALIGN(16);
173 __setup_start = .;
Eric W. Biederman5ded01e2005-06-25 14:57:48 -0700174 .init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) { *(.init.setup) }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700175 __setup_end = .;
176 __initcall_start = .;
Eric W. Biederman5ded01e2005-06-25 14:57:48 -0700177 .initcall.init : AT(ADDR(.initcall.init) - LOAD_OFFSET) {
Andrew Morton61ce1ef2006-10-27 11:41:44 -0700178 INITCALLS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700179 }
180 __initcall_end = .;
181 __con_initcall_start = .;
Eric W. Biederman5ded01e2005-06-25 14:57:48 -0700182 .con_initcall.init : AT(ADDR(.con_initcall.init) - LOAD_OFFSET) {
183 *(.con_initcall.init)
184 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700185 __con_initcall_end = .;
186 SECURITY_INIT
187 . = ALIGN(8);
188 __alt_instructions = .;
Eric W. Biederman5ded01e2005-06-25 14:57:48 -0700189 .altinstructions : AT(ADDR(.altinstructions) - LOAD_OFFSET) {
190 *(.altinstructions)
191 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700192 __alt_instructions_end = .;
Eric W. Biederman5ded01e2005-06-25 14:57:48 -0700193 .altinstr_replacement : AT(ADDR(.altinstr_replacement) - LOAD_OFFSET) {
194 *(.altinstr_replacement)
195 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196 /* .exit.text is discard at runtime, not link time, to deal with references
197 from .altinstructions and .eh_frame */
Eric W. Biederman5ded01e2005-06-25 14:57:48 -0700198 .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) { *(.exit.text) }
199 .exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) { *(.exit.data) }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700200 . = ALIGN(4096);
201 __initramfs_start = .;
Eric W. Biederman5ded01e2005-06-25 14:57:48 -0700202 .init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) { *(.init.ramfs) }
Andi Kleen14c3f852006-02-03 21:51:56 +0100203 __initramfs_end = .;
Andi Kleenb38337a2006-09-26 10:52:40 +0200204 . = ALIGN(CONFIG_X86_L1_CACHE_BYTES);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700205 __per_cpu_start = .;
Eric W. Biederman5ded01e2005-06-25 14:57:48 -0700206 .data.percpu : AT(ADDR(.data.percpu) - LOAD_OFFSET) { *(.data.percpu) }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207 __per_cpu_end = .;
Andi Kleenb38337a2006-09-26 10:52:40 +0200208 . = ALIGN(4096);
209 __init_end = .;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700210
211 . = ALIGN(4096);
212 __nosave_begin = .;
Eric W. Biederman5ded01e2005-06-25 14:57:48 -0700213 .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) { *(.data.nosave) }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214 . = ALIGN(4096);
215 __nosave_end = .;
216
Vivek Goyal120b1142006-09-30 01:47:55 +0200217 __bss_start = .; /* BSS */
218 .bss : AT(ADDR(.bss) - LOAD_OFFSET) {
219 *(.bss.page_aligned)
220 *(.bss)
221 }
222 __bss_stop = .;
223
Linus Torvalds1da177e2005-04-16 15:20:36 -0700224 _end = . ;
225
226 /* Sections to be discarded */
227 /DISCARD/ : {
228 *(.exitcall.exit)
Jan Beulich6e0c47e2006-01-11 22:42:05 +0100229#ifndef CONFIG_UNWIND_INFO
Linus Torvalds1da177e2005-04-16 15:20:36 -0700230 *(.eh_frame)
231#endif
232 }
233
Paolo 'Blaisorblade' Giarrusso4413a512005-09-10 19:44:55 +0200234 STABS_DEBUG
Linus Torvalds1da177e2005-04-16 15:20:36 -0700235
Paolo 'Blaisorblade' Giarrusso4413a512005-09-10 19:44:55 +0200236 DWARF_DEBUG
Linus Torvalds1da177e2005-04-16 15:20:36 -0700237}