[PATCH] i386 vDSO: add PT_NOTE segment

This patch adds an ELF note to the vDSO giving the LINUX_VERSION_CODE
value.  Having this in the vDSO lets the dynamic linker avoid the `uname'
syscall it now always does at startup to ascertain the kernel ABI
available.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/arch/i386/kernel/vsyscall.lds.S b/arch/i386/kernel/vsyscall.lds.S
index 3a8329d6536e..a7977707c8e5 100644
--- a/arch/i386/kernel/vsyscall.lds.S
+++ b/arch/i386/kernel/vsyscall.lds.S
@@ -23,7 +23,7 @@ SECTIONS
   . = VSYSCALL_BASE + 0x400;
 
   .text           : { *(.text) }                :text =0x90909090
-
+  .note           : { *(.note.*) }              :text :note
   .eh_frame_hdr   : { *(.eh_frame_hdr) }        :text :eh_frame_hdr
   .eh_frame       : { KEEP (*(.eh_frame)) }     :text
   .dynamic        : { *(.dynamic) }             :text :dynamic
@@ -43,6 +43,7 @@ PHDRS
 {
   text PT_LOAD FILEHDR PHDRS FLAGS(5); /* PF_R|PF_X */
   dynamic PT_DYNAMIC FLAGS(4); /* PF_R */
+  note PT_NOTE FLAGS(4); /* PF_R */
   eh_frame_hdr 0x6474e550; /* PT_GNU_EH_FRAME, but ld doesn't match the name */
 }