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-rw-r--r--include/asm-generic/vmlinux.lds.h12
-rw-r--r--include/linux/init_task.h3
-rw-r--r--include/linux/linkage.h9
3 files changed, 18 insertions, 6 deletions
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index dccdbed05848..a553f1041cf1 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -191,7 +191,7 @@
191 . = ALIGN(align); \ 191 . = ALIGN(align); \
192 *(.data.cacheline_aligned) 192 *(.data.cacheline_aligned)
193 193
194#define INIT_TASK(align) \ 194#define INIT_TASK_DATA(align) \
195 . = ALIGN(align); \ 195 . = ALIGN(align); \
196 *(.data.init_task) 196 *(.data.init_task)
197 197
@@ -434,10 +434,10 @@
434/* 434/*
435 * Init task 435 * Init task
436 */ 436 */
437#define INIT_TASK_DATA(align) \ 437#define INIT_TASK_DATA_SECTION(align) \
438 . = ALIGN(align); \ 438 . = ALIGN(align); \
439 .data.init_task : { \ 439 .data.init_task : { \
440 INIT_TASK \ 440 INIT_TASK_DATA(align) \
441 } 441 }
442 442
443#ifdef CONFIG_CONSTRUCTORS 443#ifdef CONFIG_CONSTRUCTORS
@@ -705,15 +705,15 @@
705 * matches the requirment of PAGE_ALIGNED_DATA. 705 * matches the requirment of PAGE_ALIGNED_DATA.
706 * 706 *
707 * use 0 as page_align if page_aligned data is not used */ 707 * use 0 as page_align if page_aligned data is not used */
708#define RW_DATA_SECTION(cacheline, nosave, pagealigned, inittask) \ 708#define RW_DATA_SECTION(cacheline, pagealigned, inittask) \
709 . = ALIGN(PAGE_SIZE); \ 709 . = ALIGN(PAGE_SIZE); \
710 .data : AT(ADDR(.data) - LOAD_OFFSET) { \ 710 .data : AT(ADDR(.data) - LOAD_OFFSET) { \
711 INIT_TASK(inittask) \ 711 INIT_TASK_DATA(inittask) \
712 CACHELINE_ALIGNED_DATA(cacheline) \ 712 CACHELINE_ALIGNED_DATA(cacheline) \
713 READ_MOSTLY_DATA(cacheline) \ 713 READ_MOSTLY_DATA(cacheline) \
714 DATA_DATA \ 714 DATA_DATA \
715 CONSTRUCTORS \ 715 CONSTRUCTORS \
716 NOSAVE_DATA(nosave) \ 716 NOSAVE_DATA \
717 PAGE_ALIGNED_DATA(pagealigned) \ 717 PAGE_ALIGNED_DATA(pagealigned) \
718 } 718 }
719 719
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index 5368fbdc7801..7fc01b13be43 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -183,5 +183,8 @@ extern struct cred init_cred;
183 LIST_HEAD_INIT(cpu_timers[2]), \ 183 LIST_HEAD_INIT(cpu_timers[2]), \
184} 184}
185 185
186/* Attach to the init_task data structure for proper alignment */
187#define __init_task_data __attribute__((__section__(".data.init_task")))
188
186 189
187#endif 190#endif
diff --git a/include/linux/linkage.h b/include/linux/linkage.h
index fee9e59649c1..691f59171c6c 100644
--- a/include/linux/linkage.h
+++ b/include/linux/linkage.h
@@ -22,6 +22,15 @@
22#define __page_aligned_bss __section(.bss.page_aligned) __aligned(PAGE_SIZE) 22#define __page_aligned_bss __section(.bss.page_aligned) __aligned(PAGE_SIZE)
23 23
24/* 24/*
25 * For assembly routines.
26 *
27 * Note when using these that you must specify the appropriate
28 * alignment directives yourself
29 */
30#define __PAGE_ALIGNED_DATA .section ".data.page_aligned", "aw"
31#define __PAGE_ALIGNED_BSS .section ".bss.page_aligned", "aw"
32
33/*
25 * This is used by architectures to keep arguments on the stack 34 * This is used by architectures to keep arguments on the stack
26 * untouched by the compiler by keeping them live until the end. 35 * untouched by the compiler by keeping them live until the end.
27 * The argument stack may be owned by the assembly-language 36 * The argument stack may be owned by the assembly-language