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-rw-r--r--arch/x86/boot/compressed/head_32.S3
-rw-r--r--arch/x86/boot/compressed/head_64.S3
-rw-r--r--arch/x86/boot/compressed/vmlinux.lds.S6
-rw-r--r--arch/x86/kernel/head_32.S2
-rw-r--r--arch/x86/kernel/head_64.S2
-rw-r--r--arch/x86/kernel/traps.c6
-rw-r--r--arch/x86/kernel/vmlinux.lds.S79
7 files changed, 25 insertions, 76 deletions
diff --git a/arch/x86/boot/compressed/head_32.S b/arch/x86/boot/compressed/head_32.S
index 75e4f001e706..f543b70ffae2 100644
--- a/arch/x86/boot/compressed/head_32.S
+++ b/arch/x86/boot/compressed/head_32.S
@@ -23,13 +23,14 @@
23 */ 23 */
24 .text 24 .text
25 25
26#include <linux/init.h>
26#include <linux/linkage.h> 27#include <linux/linkage.h>
27#include <asm/segment.h> 28#include <asm/segment.h>
28#include <asm/page_types.h> 29#include <asm/page_types.h>
29#include <asm/boot.h> 30#include <asm/boot.h>
30#include <asm/asm-offsets.h> 31#include <asm/asm-offsets.h>
31 32
32 .section ".text.head","ax",@progbits 33 __HEAD
33ENTRY(startup_32) 34ENTRY(startup_32)
34 cld 35 cld
35 /* 36 /*
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
index f62c284db9eb..077e1b69198e 100644
--- a/arch/x86/boot/compressed/head_64.S
+++ b/arch/x86/boot/compressed/head_64.S
@@ -24,6 +24,7 @@
24 .code32 24 .code32
25 .text 25 .text
26 26
27#include <linux/init.h>
27#include <linux/linkage.h> 28#include <linux/linkage.h>
28#include <asm/segment.h> 29#include <asm/segment.h>
29#include <asm/pgtable_types.h> 30#include <asm/pgtable_types.h>
@@ -33,7 +34,7 @@
33#include <asm/processor-flags.h> 34#include <asm/processor-flags.h>
34#include <asm/asm-offsets.h> 35#include <asm/asm-offsets.h>
35 36
36 .section ".text.head" 37 __HEAD
37 .code32 38 .code32
38ENTRY(startup_32) 39ENTRY(startup_32)
39 cld 40 cld
diff --git a/arch/x86/boot/compressed/vmlinux.lds.S b/arch/x86/boot/compressed/vmlinux.lds.S
index cc353e1b3ffd..f4193bb48782 100644
--- a/arch/x86/boot/compressed/vmlinux.lds.S
+++ b/arch/x86/boot/compressed/vmlinux.lds.S
@@ -1,3 +1,5 @@
1#include <asm-generic/vmlinux.lds.h>
2
1OUTPUT_FORMAT(CONFIG_OUTPUT_FORMAT, CONFIG_OUTPUT_FORMAT, CONFIG_OUTPUT_FORMAT) 3OUTPUT_FORMAT(CONFIG_OUTPUT_FORMAT, CONFIG_OUTPUT_FORMAT, CONFIG_OUTPUT_FORMAT)
2 4
3#undef i386 5#undef i386
@@ -18,9 +20,9 @@ SECTIONS
18 * address 0. 20 * address 0.
19 */ 21 */
20 . = 0; 22 . = 0;
21 .text.head : { 23 .head.text : {
22 _head = . ; 24 _head = . ;
23 *(.text.head) 25 HEAD_TEXT
24 _ehead = . ; 26 _ehead = . ;
25 } 27 }
26 .rodata.compressed : { 28 .rodata.compressed : {
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index b766e8c7252d..0ad4302ba975 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -79,7 +79,7 @@ RESERVE_BRK(pagetables, INIT_MAP_SIZE)
79 * any particular GDT layout, because we load our own as soon as we 79 * any particular GDT layout, because we load our own as soon as we
80 * can. 80 * can.
81 */ 81 */
82.section .text.head,"ax",@progbits 82__HEAD
83ENTRY(startup_32) 83ENTRY(startup_32)
84 /* test KEEP_SEGMENTS flag to see if the bootloader is asking 84 /* test KEEP_SEGMENTS flag to see if the bootloader is asking
85 us to not reload segments */ 85 us to not reload segments */
diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index fa54f78e2a05..26406601031c 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -40,7 +40,7 @@ L4_START_KERNEL = pgd_index(__START_KERNEL_map)
40L3_START_KERNEL = pud_index(__START_KERNEL_map) 40L3_START_KERNEL = pud_index(__START_KERNEL_map)
41 41
42 .text 42 .text
43 .section .text.head 43 __HEAD
44 .code64 44 .code64
45 .globl startup_64 45 .globl startup_64
46startup_64: 46startup_64:
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 9346e102338d..8351175172e1 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -73,11 +73,9 @@ char ignore_fpu_irq;
73 73
74/* 74/*
75 * The IDT has to be page-aligned to simplify the Pentium 75 * The IDT has to be page-aligned to simplify the Pentium
76 * F0 0F bug workaround.. We have a special link segment 76 * F0 0F bug workaround.
77 * for this.
78 */ 77 */
79gate_desc idt_table[NR_VECTORS] 78gate_desc idt_table[NR_VECTORS] __page_aligned_data = { { { { 0, 0 } } }, };
80 __attribute__((__section__(".data.idt"))) = { { { { 0, 0 } } }, };
81#endif 79#endif
82 80
83DECLARE_BITMAP(used_vectors, NR_VECTORS); 81DECLARE_BITMAP(used_vectors, NR_VECTORS);
diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index a46acccec38a..92929fb3f9fa 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -65,17 +65,11 @@ SECTIONS
65#endif 65#endif
66 66
67 /* Text and read-only data */ 67 /* Text and read-only data */
68
69 /* bootstrapping code */
70 .text.head : AT(ADDR(.text.head) - LOAD_OFFSET) {
71 _text = .;
72 *(.text.head)
73 } :text = 0x9090
74
75 /* The rest of the text */
76 .text : AT(ADDR(.text) - LOAD_OFFSET) { 68 .text : AT(ADDR(.text) - LOAD_OFFSET) {
69 _text = .;
70 /* bootstrapping code */
71 HEAD_TEXT
77#ifdef CONFIG_X86_32 72#ifdef CONFIG_X86_32
78 /* not really needed, already page aligned */
79 . = ALIGN(PAGE_SIZE); 73 . = ALIGN(PAGE_SIZE);
80 *(.text.page_aligned) 74 *(.text.page_aligned)
81#endif 75#endif
@@ -94,13 +88,7 @@ SECTIONS
94 88
95 NOTES :text :note 89 NOTES :text :note
96 90
97 /* Exception table */ 91 EXCEPTION_TABLE(16) :text = 0x9090
98 . = ALIGN(16);
99 __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) {
100 __start___ex_table = .;
101 *(__ex_table)
102 __stop___ex_table = .;
103 } :text = 0x9090
104 92
105 RO_DATA(PAGE_SIZE) 93 RO_DATA(PAGE_SIZE)
106 94
@@ -118,7 +106,6 @@ SECTIONS
118#endif 106#endif
119 107
120 PAGE_ALIGNED_DATA(PAGE_SIZE) 108 PAGE_ALIGNED_DATA(PAGE_SIZE)
121 *(.data.idt)
122 109
123 CACHELINE_ALIGNED_DATA(CONFIG_X86_L1_CACHE_BYTES) 110 CACHELINE_ALIGNED_DATA(CONFIG_X86_L1_CACHE_BYTES)
124 111
@@ -135,24 +122,21 @@ SECTIONS
135#ifdef CONFIG_X86_64 122#ifdef CONFIG_X86_64
136 123
137#define VSYSCALL_ADDR (-10*1024*1024) 124#define VSYSCALL_ADDR (-10*1024*1024)
138#define VSYSCALL_PHYS_ADDR ((LOADADDR(.data) + SIZEOF(.data) + \
139 PAGE_SIZE - 1) & ~(PAGE_SIZE - 1))
140#define VSYSCALL_VIRT_ADDR ((ADDR(.data) + SIZEOF(.data) + \
141 PAGE_SIZE - 1) & ~(PAGE_SIZE - 1))
142 125
143#define VLOAD_OFFSET (VSYSCALL_ADDR - VSYSCALL_PHYS_ADDR) 126#define VLOAD_OFFSET (VSYSCALL_ADDR - __vsyscall_0 + LOAD_OFFSET)
144#define VLOAD(x) (ADDR(x) - VLOAD_OFFSET) 127#define VLOAD(x) (ADDR(x) - VLOAD_OFFSET)
145 128
146#define VVIRT_OFFSET (VSYSCALL_ADDR - VSYSCALL_VIRT_ADDR) 129#define VVIRT_OFFSET (VSYSCALL_ADDR - __vsyscall_0)
147#define VVIRT(x) (ADDR(x) - VVIRT_OFFSET) 130#define VVIRT(x) (ADDR(x) - VVIRT_OFFSET)
148 131
132 . = ALIGN(4096);
133 __vsyscall_0 = .;
134
149 . = VSYSCALL_ADDR; 135 . = VSYSCALL_ADDR;
150 .vsyscall_0 : AT(VSYSCALL_PHYS_ADDR) { 136 .vsyscall_0 : AT(VLOAD(.vsyscall_0)) {
151 *(.vsyscall_0) 137 *(.vsyscall_0)
152 } :user 138 } :user
153 139
154 __vsyscall_0 = VSYSCALL_VIRT_ADDR;
155
156 . = ALIGN(CONFIG_X86_L1_CACHE_BYTES); 140 . = ALIGN(CONFIG_X86_L1_CACHE_BYTES);
157 .vsyscall_fn : AT(VLOAD(.vsyscall_fn)) { 141 .vsyscall_fn : AT(VLOAD(.vsyscall_fn)) {
158 *(.vsyscall_fn) 142 *(.vsyscall_fn)
@@ -192,11 +176,9 @@ SECTIONS
192 *(.vsyscall_3) 176 *(.vsyscall_3)
193 } 177 }
194 178
195 . = VSYSCALL_VIRT_ADDR + PAGE_SIZE; 179 . = __vsyscall_0 + PAGE_SIZE;
196 180
197#undef VSYSCALL_ADDR 181#undef VSYSCALL_ADDR
198#undef VSYSCALL_PHYS_ADDR
199#undef VSYSCALL_VIRT_ADDR
200#undef VLOAD_OFFSET 182#undef VLOAD_OFFSET
201#undef VLOAD 183#undef VLOAD
202#undef VVIRT_OFFSET 184#undef VVIRT_OFFSET
@@ -219,36 +201,12 @@ SECTIONS
219 PERCPU_VADDR(0, :percpu) 201 PERCPU_VADDR(0, :percpu)
220#endif 202#endif
221 203
222 .init.text : AT(ADDR(.init.text) - LOAD_OFFSET) { 204 INIT_TEXT_SECTION(PAGE_SIZE)
223 _sinittext = .;
224 INIT_TEXT
225 _einittext = .;
226 }
227#ifdef CONFIG_X86_64 205#ifdef CONFIG_X86_64
228 :init 206 :init
229#endif 207#endif
230 208
231 .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) { 209 INIT_DATA_SECTION(16)
232 INIT_DATA
233 }
234
235 . = ALIGN(16);
236 .init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) {
237 __setup_start = .;
238 *(.init.setup)
239 __setup_end = .;
240 }
241 .initcall.init : AT(ADDR(.initcall.init) - LOAD_OFFSET) {
242 __initcall_start = .;
243 INITCALLS
244 __initcall_end = .;
245 }
246
247 .con_initcall.init : AT(ADDR(.con_initcall.init) - LOAD_OFFSET) {
248 __con_initcall_start = .;
249 *(.con_initcall.init)
250 __con_initcall_end = .;
251 }
252 210
253 .x86_cpu_dev.init : AT(ADDR(.x86_cpu_dev.init) - LOAD_OFFSET) { 211 .x86_cpu_dev.init : AT(ADDR(.x86_cpu_dev.init) - LOAD_OFFSET) {
254 __x86_cpu_dev_start = .; 212 __x86_cpu_dev_start = .;
@@ -256,8 +214,6 @@ SECTIONS
256 __x86_cpu_dev_end = .; 214 __x86_cpu_dev_end = .;
257 } 215 }
258 216
259 SECURITY_INIT
260
261 . = ALIGN(8); 217 . = ALIGN(8);
262 .parainstructions : AT(ADDR(.parainstructions) - LOAD_OFFSET) { 218 .parainstructions : AT(ADDR(.parainstructions) - LOAD_OFFSET) {
263 __parainstructions = .; 219 __parainstructions = .;
@@ -288,15 +244,6 @@ SECTIONS
288 EXIT_DATA 244 EXIT_DATA
289 } 245 }
290 246
291#ifdef CONFIG_BLK_DEV_INITRD
292 . = ALIGN(PAGE_SIZE);
293 .init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) {
294 __initramfs_start = .;
295 *(.init.ramfs)
296 __initramfs_end = .;
297 }
298#endif
299
300#if !defined(CONFIG_X86_64) || !defined(CONFIG_SMP) 247#if !defined(CONFIG_X86_64) || !defined(CONFIG_SMP)
301 PERCPU(PAGE_SIZE) 248 PERCPU(PAGE_SIZE)
302#endif 249#endif