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authorThomas Gleixner <tglx@linutronix.de>2007-10-11 05:12:11 -0400
committerThomas Gleixner <tglx@linutronix.de>2007-10-11 05:12:11 -0400
commita60b778b5a813c6b3663db9244f5a886f0f91027 (patch)
treeb968c7fe2ad188c90db8e8f9b46d8e5f18460202 /arch
parentcaadc5e249a19596b1c8400bf8e71320e4f0a14f (diff)
i386: prepare shared kernel/vmlinux.lds.S
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch')
-rw-r--r--arch/i386/kernel/vmlinux.lds.S216
-rw-r--r--arch/i386/kernel/vmlinux_32.lds.S213
2 files changed, 217 insertions, 212 deletions
diff --git a/arch/i386/kernel/vmlinux.lds.S b/arch/i386/kernel/vmlinux.lds.S
index 7d72cce00529..849ee611f013 100644
--- a/arch/i386/kernel/vmlinux.lds.S
+++ b/arch/i386/kernel/vmlinux.lds.S
@@ -1,213 +1,5 @@
1/* ld script to make i386 Linux kernel 1#ifdef CONFIG_X86_32
2 * Written by Martin Mares <mj@atrey.karlin.mff.cuni.cz>; 2# include "vmlinux_32.lds.S"
3 * 3#else
4 * Don't define absolute symbols until and unless you know that symbol 4# include "vmlinux_64.lds.S"
5 * value is should remain constant even if kernel image is relocated
6 * at run time. Absolute symbols are not relocated. If symbol value should
7 * change if kernel is relocated, make the symbol section relative and
8 * put it inside the section definition.
9 */
10
11/* Don't define absolute symbols until and unless you know that symbol
12 * value is should remain constant even if kernel image is relocated
13 * at run time. Absolute symbols are not relocated. If symbol value should
14 * change if kernel is relocated, make the symbol section relative and
15 * put it inside the section definition.
16 */
17#define LOAD_OFFSET __PAGE_OFFSET
18
19#include <asm-generic/vmlinux.lds.h>
20#include <asm/thread_info.h>
21#include <asm/page.h>
22#include <asm/cache.h>
23#include <asm/boot.h>
24
25OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
26OUTPUT_ARCH(i386)
27ENTRY(phys_startup_32)
28jiffies = jiffies_64;
29
30PHDRS {
31 text PT_LOAD FLAGS(5); /* R_E */
32 data PT_LOAD FLAGS(7); /* RWE */
33 note PT_NOTE FLAGS(0); /* ___ */
34}
35SECTIONS
36{
37 . = LOAD_OFFSET + LOAD_PHYSICAL_ADDR;
38 phys_startup_32 = startup_32 - LOAD_OFFSET;
39
40 .text.head : AT(ADDR(.text.head) - LOAD_OFFSET) {
41 _text = .; /* Text and read-only data */
42 *(.text.head)
43 } :text = 0x9090
44
45 /* read-only */
46 .text : AT(ADDR(.text) - LOAD_OFFSET) {
47 TEXT_TEXT
48 SCHED_TEXT
49 LOCK_TEXT
50 KPROBES_TEXT
51 *(.fixup)
52 *(.gnu.warning)
53 _etext = .; /* End of text section */
54 } :text = 0x9090
55
56 . = ALIGN(16); /* Exception table */
57 __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) {
58 __start___ex_table = .;
59 *(__ex_table)
60 __stop___ex_table = .;
61 }
62
63 NOTES :text :note
64
65 BUG_TABLE :text
66
67 . = ALIGN(4);
68 .tracedata : AT(ADDR(.tracedata) - LOAD_OFFSET) {
69 __tracedata_start = .;
70 *(.tracedata)
71 __tracedata_end = .;
72 }
73
74 RODATA
75
76 /* writeable */
77 . = ALIGN(4096);
78 .data : AT(ADDR(.data) - LOAD_OFFSET) { /* Data */
79 DATA_DATA
80 CONSTRUCTORS
81 } :data
82
83 . = ALIGN(4096);
84 .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) {
85 __nosave_begin = .;
86 *(.data.nosave)
87 . = ALIGN(4096);
88 __nosave_end = .;
89 }
90
91 . = ALIGN(4096);
92 .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) {
93 *(.data.page_aligned)
94 *(.data.idt)
95 }
96
97 . = ALIGN(32);
98 .data.cacheline_aligned : AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) {
99 *(.data.cacheline_aligned)
100 }
101
102 /* rarely changed data like cpu maps */
103 . = ALIGN(32);
104 .data.read_mostly : AT(ADDR(.data.read_mostly) - LOAD_OFFSET) {
105 *(.data.read_mostly)
106 _edata = .; /* End of data section */
107 }
108
109 . = ALIGN(THREAD_SIZE); /* init_task */
110 .data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) {
111 *(.data.init_task)
112 }
113
114 /* might get freed after init */
115 . = ALIGN(4096);
116 .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
117 __smp_locks = .;
118 *(.smp_locks)
119 __smp_locks_end = .;
120 }
121 /* will be freed after init
122 * Following ALIGN() is required to make sure no other data falls on the
123 * same page where __smp_alt_end is pointing as that page might be freed
124 * after boot. Always make sure that ALIGN() directive is present after
125 * the section which contains __smp_alt_end.
126 */
127 . = ALIGN(4096);
128
129 /* will be freed after init */
130 . = ALIGN(4096); /* Init code and data */
131 .init.text : AT(ADDR(.init.text) - LOAD_OFFSET) {
132 __init_begin = .;
133 _sinittext = .;
134 *(.init.text)
135 _einittext = .;
136 }
137 .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) { *(.init.data) }
138 . = ALIGN(16);
139 .init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) {
140 __setup_start = .;
141 *(.init.setup)
142 __setup_end = .;
143 }
144 .initcall.init : AT(ADDR(.initcall.init) - LOAD_OFFSET) {
145 __initcall_start = .;
146 INITCALLS
147 __initcall_end = .;
148 }
149 .con_initcall.init : AT(ADDR(.con_initcall.init) - LOAD_OFFSET) {
150 __con_initcall_start = .;
151 *(.con_initcall.init)
152 __con_initcall_end = .;
153 }
154 SECURITY_INIT
155 . = ALIGN(4);
156 .altinstructions : AT(ADDR(.altinstructions) - LOAD_OFFSET) {
157 __alt_instructions = .;
158 *(.altinstructions)
159 __alt_instructions_end = .;
160 }
161 .altinstr_replacement : AT(ADDR(.altinstr_replacement) - LOAD_OFFSET) {
162 *(.altinstr_replacement)
163 }
164 . = ALIGN(4);
165 .parainstructions : AT(ADDR(.parainstructions) - LOAD_OFFSET) {
166 __parainstructions = .;
167 *(.parainstructions)
168 __parainstructions_end = .;
169 }
170 /* .exit.text is discard at runtime, not link time, to deal with references
171 from .altinstructions and .eh_frame */
172 .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) { *(.exit.text) }
173 .exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) { *(.exit.data) }
174#if defined(CONFIG_BLK_DEV_INITRD)
175 . = ALIGN(4096);
176 .init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) {
177 __initramfs_start = .;
178 *(.init.ramfs)
179 __initramfs_end = .;
180 }
181#endif 5#endif
182 . = ALIGN(4096);
183 .data.percpu : AT(ADDR(.data.percpu) - LOAD_OFFSET) {
184 __per_cpu_start = .;
185 *(.data.percpu)
186 *(.data.percpu.shared_aligned)
187 __per_cpu_end = .;
188 }
189 . = ALIGN(4096);
190 /* freed after init ends here */
191
192 .bss : AT(ADDR(.bss) - LOAD_OFFSET) {
193 __init_end = .;
194 __bss_start = .; /* BSS */
195 *(.bss.page_aligned)
196 *(.bss)
197 . = ALIGN(4);
198 __bss_stop = .;
199 _end = . ;
200 /* This is where the kernel creates the early boot page tables */
201 . = ALIGN(4096);
202 pg0 = . ;
203 }
204
205 /* Sections to be discarded */
206 /DISCARD/ : {
207 *(.exitcall.exit)
208 }
209
210 STABS_DEBUG
211
212 DWARF_DEBUG
213}
diff --git a/arch/i386/kernel/vmlinux_32.lds.S b/arch/i386/kernel/vmlinux_32.lds.S
new file mode 100644
index 000000000000..7d72cce00529
--- /dev/null
+++ b/arch/i386/kernel/vmlinux_32.lds.S
@@ -0,0 +1,213 @@
1/* ld script to make i386 Linux kernel
2 * Written by Martin Mares <mj@atrey.karlin.mff.cuni.cz>;
3 *
4 * Don't define absolute symbols until and unless you know that symbol
5 * value is should remain constant even if kernel image is relocated
6 * at run time. Absolute symbols are not relocated. If symbol value should
7 * change if kernel is relocated, make the symbol section relative and
8 * put it inside the section definition.
9 */
10
11/* Don't define absolute symbols until and unless you know that symbol
12 * value is should remain constant even if kernel image is relocated
13 * at run time. Absolute symbols are not relocated. If symbol value should
14 * change if kernel is relocated, make the symbol section relative and
15 * put it inside the section definition.
16 */
17#define LOAD_OFFSET __PAGE_OFFSET
18
19#include <asm-generic/vmlinux.lds.h>
20#include <asm/thread_info.h>
21#include <asm/page.h>
22#include <asm/cache.h>
23#include <asm/boot.h>
24
25OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
26OUTPUT_ARCH(i386)
27ENTRY(phys_startup_32)
28jiffies = jiffies_64;
29
30PHDRS {
31 text PT_LOAD FLAGS(5); /* R_E */
32 data PT_LOAD FLAGS(7); /* RWE */
33 note PT_NOTE FLAGS(0); /* ___ */
34}
35SECTIONS
36{
37 . = LOAD_OFFSET + LOAD_PHYSICAL_ADDR;
38 phys_startup_32 = startup_32 - LOAD_OFFSET;
39
40 .text.head : AT(ADDR(.text.head) - LOAD_OFFSET) {
41 _text = .; /* Text and read-only data */
42 *(.text.head)
43 } :text = 0x9090
44
45 /* read-only */
46 .text : AT(ADDR(.text) - LOAD_OFFSET) {
47 TEXT_TEXT
48 SCHED_TEXT
49 LOCK_TEXT
50 KPROBES_TEXT
51 *(.fixup)
52 *(.gnu.warning)
53 _etext = .; /* End of text section */
54 } :text = 0x9090
55
56 . = ALIGN(16); /* Exception table */
57 __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) {
58 __start___ex_table = .;
59 *(__ex_table)
60 __stop___ex_table = .;
61 }
62
63 NOTES :text :note
64
65 BUG_TABLE :text
66
67 . = ALIGN(4);
68 .tracedata : AT(ADDR(.tracedata) - LOAD_OFFSET) {
69 __tracedata_start = .;
70 *(.tracedata)
71 __tracedata_end = .;
72 }
73
74 RODATA
75
76 /* writeable */
77 . = ALIGN(4096);
78 .data : AT(ADDR(.data) - LOAD_OFFSET) { /* Data */
79 DATA_DATA
80 CONSTRUCTORS
81 } :data
82
83 . = ALIGN(4096);
84 .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) {
85 __nosave_begin = .;
86 *(.data.nosave)
87 . = ALIGN(4096);
88 __nosave_end = .;
89 }
90
91 . = ALIGN(4096);
92 .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) {
93 *(.data.page_aligned)
94 *(.data.idt)
95 }
96
97 . = ALIGN(32);
98 .data.cacheline_aligned : AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) {
99 *(.data.cacheline_aligned)
100 }
101
102 /* rarely changed data like cpu maps */
103 . = ALIGN(32);
104 .data.read_mostly : AT(ADDR(.data.read_mostly) - LOAD_OFFSET) {
105 *(.data.read_mostly)
106 _edata = .; /* End of data section */
107 }
108
109 . = ALIGN(THREAD_SIZE); /* init_task */
110 .data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) {
111 *(.data.init_task)
112 }
113
114 /* might get freed after init */
115 . = ALIGN(4096);
116 .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
117 __smp_locks = .;
118 *(.smp_locks)
119 __smp_locks_end = .;
120 }
121 /* will be freed after init
122 * Following ALIGN() is required to make sure no other data falls on the
123 * same page where __smp_alt_end is pointing as that page might be freed
124 * after boot. Always make sure that ALIGN() directive is present after
125 * the section which contains __smp_alt_end.
126 */
127 . = ALIGN(4096);
128
129 /* will be freed after init */
130 . = ALIGN(4096); /* Init code and data */
131 .init.text : AT(ADDR(.init.text) - LOAD_OFFSET) {
132 __init_begin = .;
133 _sinittext = .;
134 *(.init.text)
135 _einittext = .;
136 }
137 .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) { *(.init.data) }
138 . = ALIGN(16);
139 .init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) {
140 __setup_start = .;
141 *(.init.setup)
142 __setup_end = .;
143 }
144 .initcall.init : AT(ADDR(.initcall.init) - LOAD_OFFSET) {
145 __initcall_start = .;
146 INITCALLS
147 __initcall_end = .;
148 }
149 .con_initcall.init : AT(ADDR(.con_initcall.init) - LOAD_OFFSET) {
150 __con_initcall_start = .;
151 *(.con_initcall.init)
152 __con_initcall_end = .;
153 }
154 SECURITY_INIT
155 . = ALIGN(4);
156 .altinstructions : AT(ADDR(.altinstructions) - LOAD_OFFSET) {
157 __alt_instructions = .;
158 *(.altinstructions)
159 __alt_instructions_end = .;
160 }
161 .altinstr_replacement : AT(ADDR(.altinstr_replacement) - LOAD_OFFSET) {
162 *(.altinstr_replacement)
163 }
164 . = ALIGN(4);
165 .parainstructions : AT(ADDR(.parainstructions) - LOAD_OFFSET) {
166 __parainstructions = .;
167 *(.parainstructions)
168 __parainstructions_end = .;
169 }
170 /* .exit.text is discard at runtime, not link time, to deal with references
171 from .altinstructions and .eh_frame */
172 .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) { *(.exit.text) }
173 .exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) { *(.exit.data) }
174#if defined(CONFIG_BLK_DEV_INITRD)
175 . = ALIGN(4096);
176 .init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) {
177 __initramfs_start = .;
178 *(.init.ramfs)
179 __initramfs_end = .;
180 }
181#endif
182 . = ALIGN(4096);
183 .data.percpu : AT(ADDR(.data.percpu) - LOAD_OFFSET) {
184 __per_cpu_start = .;
185 *(.data.percpu)
186 *(.data.percpu.shared_aligned)
187 __per_cpu_end = .;
188 }
189 . = ALIGN(4096);
190 /* freed after init ends here */
191
192 .bss : AT(ADDR(.bss) - LOAD_OFFSET) {
193 __init_end = .;
194 __bss_start = .; /* BSS */
195 *(.bss.page_aligned)
196 *(.bss)
197 . = ALIGN(4);
198 __bss_stop = .;
199 _end = . ;
200 /* This is where the kernel creates the early boot page tables */
201 . = ALIGN(4096);
202 pg0 = . ;
203 }
204
205 /* Sections to be discarded */
206 /DISCARD/ : {
207 *(.exitcall.exit)
208 }
209
210 STABS_DEBUG
211
212 DWARF_DEBUG
213}
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