lkml.org 
[lkml]   [2018]   [Jul]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCHv5 2/4] x86: Add build salt to the vDSO
Date

The vDSO needs to have a unique build id in a similar manner
to the kernel and modules. Use the build salt macro.

Signed-off-by: Laura Abbott <labbott@redhat.com>
---
v5: Switched to using the single line BUILD_SALT macro
---
arch/x86/entry/vdso/vdso-note.S | 3 +++
arch/x86/entry/vdso/vdso32/note.S | 3 +++
2 files changed, 6 insertions(+)

diff --git a/arch/x86/entry/vdso/vdso-note.S b/arch/x86/entry/vdso/vdso-note.S
index 79a071e4357e..79423170118f 100644
--- a/arch/x86/entry/vdso/vdso-note.S
+++ b/arch/x86/entry/vdso/vdso-note.S
@@ -3,6 +3,7 @@
* Here we can supply some information useful to userland.
*/

+#include <linux/build-salt.h>
#include <linux/uts.h>
#include <linux/version.h>
#include <linux/elfnote.h>
@@ -10,3 +11,5 @@
ELFNOTE_START(Linux, 0, "a")
.long LINUX_VERSION_CODE
ELFNOTE_END
+
+BUILD_SALT
diff --git a/arch/x86/entry/vdso/vdso32/note.S b/arch/x86/entry/vdso/vdso32/note.S
index 9fd51f206314..e78047d119f6 100644
--- a/arch/x86/entry/vdso/vdso32/note.S
+++ b/arch/x86/entry/vdso/vdso32/note.S
@@ -4,6 +4,7 @@
* Here we can supply some information useful to userland.
*/

+#include <linux/build-salt.h>
#include <linux/version.h>
#include <linux/elfnote.h>

@@ -14,6 +15,8 @@ ELFNOTE_START(Linux, 0, "a")
.long LINUX_VERSION_CODE
ELFNOTE_END

+BUILD_SALT
+
#ifdef CONFIG_XEN
/*
* Add a special note telling glibc's dynamic linker a fake hardware
--
2.17.1
\
 
 \ /
  Last update: 2018-07-04 01:35    [W:0.097 / U:0.452 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site