From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tim Abbott Subject: [PATCH 3/6] Add new CACHELINE_ALIGNED_DATA linker script macro. Date: Thu, 30 Apr 2009 15:32:33 -0400 Message-ID: <1241119956-31453-4-git-send-email-tabbott@mit.edu> References: <1241119956-31453-1-git-send-email-tabbott@mit.edu> <1241119956-31453-2-git-send-email-tabbott@mit.edu> <1241119956-31453-3-git-send-email-tabbott@mit.edu> Return-path: In-Reply-To: <1241119956-31453-3-git-send-email-tabbott@mit.edu> Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Sam Ravnborg Cc: Anders Kaseorg , Waseem Daher , Denys Vlasenko , Jeff Arnold , Benjamin Herrenschmidt , Bryan Wu , Chris Zankel , Cyrill Gorcunov , David Howells , "David S. Miller" , dev-etrax@axis.com, Geert Uytterhoeven , Greg Ungerer , Haavard Skinnemoen , Heiko Carstens , Helge Deller , Hirokazu Takata , "H. Peter Anvin" , Ingo Molnar , Jeff Dike , Jesper Nilsson , Kyle McMartin , Linus Torvalds , linux-alpha@vger.kernel.org This patch is preparation for replacing most ".data.cacheline_aligned" in the kernel with macros, so that the section name can later be changed without having to touch a lot of the kernel. 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 ".data.foo". Signed-off-by: Tim Abbott Cc: Sam Ravnborg --- include/asm-generic/vmlinux.lds.h | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index f5ebd2b..fa7801b 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -131,6 +131,10 @@ . = ALIGN(PAGE_SIZE); \ __nosave_end = .; +#define CACHELINE_ALIGNED_DATA(alignment) \ + . = ALIGN(alignment); \ + *(.data.cacheline_aligned) + #define RO_DATA(align) \ . = ALIGN((align)); \ .rodata : AT(ADDR(.rodata) - LOAD_OFFSET) { \ -- 1.6.2.1