linux-kernel - [PATCH 1 of 1] x86_43: Put .note.* sections into a PT

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Date:	Tue, 22 Aug 2006 12:14:18 +0100
From:	Ian Campbell <Ian.Campbell@...Source.com>
To:	Andrew Morton <akpm@...l.org>
Cc:	Jeremy Fitzhardinge <jeremy@...source.com>,
	Xen-devel <xen-devel@...ts.xensource.com>,
	Ian Pratt <ian.pratt@...source.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Chris Wright <chrisw@...s-sol.org>,
	Virtualization <virtualization@...ts.osdl.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Christoph Lameter <clameter@....com>, Andi Kleen <ak@...e.de>
Subject: [PATCH 1 of 1] x86_43: Put .note.* sections into a PT_NOTE segment
	in vmlinux

On Tue, 2006-08-01 at 13:00 -0700, Jeremy Fitzhardinge wrote:
> This patch will pack any .note.* section into a PT_NOTE segment in the
> output file.
[...]
> This only changes i386 for now, but I presume the corresponding
> changes for other architectures will be as simple.

Here is the patch for x86_64.

Signed-off-by: Ian Campbell <ian.campbell@...source.com>

diff -urN ref-linux-2.6.16.13/arch/x86_64/kernel/vmlinux.lds.S x86-64_elfnotes/arch/x86_64/kernel/vmlinux.lds.S
--- ref-linux-2.6.16.13/arch/x86_64/kernel/vmlinux.lds.S	2006-05-02 22:38:44.000000000 +0100
+++ x86-64_elfnotes/arch/x86_64/kernel/vmlinux.lds.S	2006-08-22 11:39:14.000000000 +0100
@@ -14,6 +14,11 @@
 OUTPUT_ARCH(i386:x86-64)
 ENTRY(phys_startup_64)
 jiffies_64 = jiffies;
+PHDRS {
+	text PT_LOAD FLAGS(5);	/* R_E */
+	data PT_LOAD FLAGS(7);	/* RWE */
+	note PT_NOTE FLAGS(4);	/* R__ */
+}
 SECTIONS
 {
   . = __START_KERNEL;
@@ -26,7 +31,7 @@
 	KPROBES_TEXT
 	*(.fixup)
 	*(.gnu.warning)
-	} = 0x9090
+	} :text = 0x9090
   				/* out-of-line lock text */
   .text.lock : AT(ADDR(.text.lock) - LOAD_OFFSET) { *(.text.lock) }
 
@@ -43,7 +48,7 @@
   .data : AT(ADDR(.data) - LOAD_OFFSET) {
 	*(.data)
 	CONSTRUCTORS
-	}
+	} :data
 
   _edata = .;			/* End of data section */
 
@@ -201,4 +206,6 @@
   STABS_DEBUG
 
   DWARF_DEBUG
+
+  NOTES
 }


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