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authorTim Abbott <tabbott@MIT.EDU>2009-04-25 22:10:56 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2009-04-26 09:20:38 -0700
commitc80d471a476b6d6fe0bc1fd25293c24c66b7aaaf (patch)
treee7e6cf35915186c614728dadbd95c5197bff0075 /include/linux/init.h
parent0c8454f56623505a99463405fd7d5664adfbb094 (diff)
downloadop-kernel-dev-c80d471a476b6d6fe0bc1fd25293c24c66b7aaaf.zip
op-kernel-dev-c80d471a476b6d6fe0bc1fd25293c24c66b7aaaf.tar.gz
Add new HEAD_TEXT_SECTION macro.
This patch is preparation for replacing all uses of ".head.text" or ".text.head" in the kernel with macros, so that the section name can later be changed without having to touch a lot of the kernel. Since some linker scripts do more complex things than referencing HEAD_TEXT, we add a HEAD_TEXT_SECTION macro that just contains the actual name. I've defined HEAD_TEXT_SECTION in a new header, include/linux/section-names.h, so that this section name only needs to appear in one place. I anticipate creating similar macro structures for a number of other section names. The long-term goal here is to be able to change the kernel's magic section names to those that are compatible with -ffunction-sections -fdata-sections. This requires renaming all magic sections with names of the form ".text.foo". Signed-off-by: Tim Abbott <tabbott@mit.edu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/init.h')
-rw-r--r--include/linux/init.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/init.h b/include/linux/init.h
index f121a7a..20a1334 100644
--- a/include/linux/init.h
+++ b/include/linux/init.h
@@ -2,6 +2,8 @@
#define _LINUX_INIT_H
#include <linux/compiler.h>
+#include <linux/section-names.h>
+#include <linux/stringify.h>
/* These macros are used to mark some functions or
* initialized data (doesn't apply to uninitialized data)
@@ -107,7 +109,7 @@
#define __memexitconst __section(.memexit.rodata)
/* For assembly routines */
-#define __HEAD .section ".head.text","ax"
+#define __HEAD .section __stringify(HEAD_TEXT_SECTION),"ax"
#define __INIT .section ".init.text","ax"
#define __FINIT .previous
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