From 9c40818da5b39fca236029059ab839857b1ef56c Mon Sep 17 00:00:00 2001
From: Andy Lutomirski <luto@MIT.EDU>
Date: Wed, 3 Aug 2011 09:31:50 -0400
Subject: [PATCH] x86-64: Move the "user" vsyscall segment out of the data
segment.
The kernel's loader doesn't seem to care, but gold complains.
Signed-off-by: Andy Lutomirski <luto@mit.edu>
Link: http://lkml.kernel.org/r/f0716870c297242a841b949953d80c0d87bf3d3f.1312378163.git.luto@mit.edu
Reported-by: Arkadiusz Miskiewicz <a.miskiewicz@gmail.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
arch/x86/kernel/vmlinux.lds.S | 36 +++++++++++++++++------------------
1 file changed, 18 insertions(+), 18 deletions(-)
diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index 4aa9c54a9b76e..e79fb3951fcef 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -154,6 +154,24 @@ SECTIONS
#ifdef CONFIG_X86_64
+ . = ALIGN(PAGE_SIZE);
+ __vvar_page = .;
+
+ .vvar : AT(ADDR(.vvar) - LOAD_OFFSET) {
+
+ /* Place all vvars at the offsets in asm/vvar.h. */
+#define EMIT_VVAR(name, offset) \
+ . = offset; \
+ *(.vvar_ ## name)
+#define __VVAR_KERNEL_LDS
+#include <asm/vvar.h>
+#undef __VVAR_KERNEL_LDS
+#undef EMIT_VVAR
+
+ } :data
+
+ . = ALIGN(__vvar_page + PAGE_SIZE, PAGE_SIZE);
+
#define VSYSCALL_ADDR (-10*1024*1024)
#define VLOAD_OFFSET (VSYSCALL_ADDR - __vsyscall_0 + LOAD_OFFSET)
@@ -162,7 +180,6 @@ SECTIONS
#define VVIRT_OFFSET (VSYSCALL_ADDR - __vsyscall_0)
#define VVIRT(x) (ADDR(x) - VVIRT_OFFSET)
- . = ALIGN(4096);
__vsyscall_0 = .;
. = VSYSCALL_ADDR;
@@ -185,23 +202,6 @@ SECTIONS
#undef VVIRT_OFFSET
#undef VVIRT
- __vvar_page = .;
-
- .vvar : AT(ADDR(.vvar) - LOAD_OFFSET) {
-
- /* Place all vvars at the offsets in asm/vvar.h. */
-#define EMIT_VVAR(name, offset) \
- . = offset; \
- *(.vvar_ ## name)
-#define __VVAR_KERNEL_LDS
-#include <asm/vvar.h>
-#undef __VVAR_KERNEL_LDS
-#undef EMIT_VVAR
-
- } :data
-
- . = ALIGN(__vvar_page + PAGE_SIZE, PAGE_SIZE);
-
#endif /* CONFIG_X86_64 */
/* Init code and data - will be freed after init */
--
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