Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes

* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes:
  kbuild: finally remove the obsolete variable $TOPDIR
  gitignore: ignore scripts/ihex2fw
  Kbuild: Disable the -Wformat-security gcc flag
  gitignore: ignore gcov output files
  kbuild: deb-pkg ship changelog
  Add new __init_task_data macro to be used in arch init_task.c files.
  asm-generic/vmlinux.lds.h: shuffle INIT_TASK* macro names in vmlinux.lds.h
  Add new macros for page-aligned data and bss sections.
  asm-generic/vmlinux.lds.h: Fix up RW_DATA_SECTION definition.

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 @@
         . = ALIGN(align);                                               \
         *(.data.cacheline_aligned)
 
-#define INIT_TASK(align)                                                \
+#define INIT_TASK_DATA(align)                                           \
         . = ALIGN(align);                                               \
         *(.data.init_task)
 
@@ -434,10 +434,10 @@
 /*
  * Init task
  */
-#define INIT_TASK_DATA(align)                                           \
+#define INIT_TASK_DATA_SECTION(align)                                   \
         . = ALIGN(align);                                               \
         .data.init_task : {                                             \
-                INIT_TASK                                               \
+                INIT_TASK_DATA(align)                                   \
         }
 
 #ifdef CONFIG_CONSTRUCTORS
@@ -705,15 +705,15 @@
  * matches the requirment of PAGE_ALIGNED_DATA.
  *
  * use 0 as page_align if page_aligned data is not used */
-#define RW_DATA_SECTION(cacheline, nosave, pagealigned, inittask)       \
+#define RW_DATA_SECTION(cacheline, pagealigned, inittask)               \
         . = ALIGN(PAGE_SIZE);                                           \
         .data : AT(ADDR(.data) - LOAD_OFFSET) {                         \
-                INIT_TASK(inittask)                                     \
+                INIT_TASK_DATA(inittask)                                \
                 CACHELINE_ALIGNED_DATA(cacheline)                       \
                 READ_MOSTLY_DATA(cacheline)                             \
                 DATA_DATA                                               \
                 CONSTRUCTORS                                            \
-                NOSAVE_DATA(nosave)                                     \
+                NOSAVE_DATA                                             \
                 PAGE_ALIGNED_DATA(pagealigned)                          \
         }
 
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;
         LIST_HEAD_INIT(cpu_timers[2]),                                  \
 }
 
+/* Attach to the init_task data structure for proper alignment */
+#define __init_task_data __attribute__((__section__(".data.init_task")))
+
 
 #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 @@
 #define __page_aligned_bss      __section(.bss.page_aligned) __aligned(PAGE_SIZE)
 
 /*
+ * For assembly routines.
+ *
+ * Note when using these that you must specify the appropriate
+ * alignment directives yourself
+ */
+#define __PAGE_ALIGNED_DATA     .section ".data.page_aligned", "aw"
+#define __PAGE_ALIGNED_BSS      .section ".bss.page_aligned", "aw"
+
+/*
  * This is used by architectures to keep arguments on the stack
  * untouched by the compiler by keeping them live until the end.
  * The argument stack may be owned by the assembly-language