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authorThomas Gleixner <tglx@linutronix.de>2007-10-11 05:13:13 -0400
committerThomas Gleixner <tglx@linutronix.de>2007-10-11 05:13:13 -0400
commit565b56cc9929fd4e682850df960f0766c8363383 (patch)
treee720eaa6ad8a16c7bf8402dc76b3d65fb3f61f5a /arch/i386/kernel/vsyscall-note.S
parentfcaf15d788dc0c8354dbcf449e260cb303120b75 (diff)
i386: prepare shared kernel/vsyscall-note.S
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/i386/kernel/vsyscall-note.S')
-rw-r--r--arch/i386/kernel/vsyscall-note.S45
1 files changed, 0 insertions, 45 deletions
diff --git a/arch/i386/kernel/vsyscall-note.S b/arch/i386/kernel/vsyscall-note.S
deleted file mode 100644
index 07c0daf78237..000000000000
--- a/arch/i386/kernel/vsyscall-note.S
+++ /dev/null
@@ -1,45 +0,0 @@
1/*
2 * This supplies .note.* sections to go into the PT_NOTE inside the vDSO text.
3 * Here we can supply some information useful to userland.
4 */
5
6#include <linux/version.h>
7#include <linux/elfnote.h>
8
9/* Ideally this would use UTS_NAME, but using a quoted string here
10 doesn't work. Remember to change this when changing the
11 kernel's name. */
12ELFNOTE_START(Linux, 0, "a")
13 .long LINUX_VERSION_CODE
14ELFNOTE_END
15
16#ifdef CONFIG_XEN
17/*
18 * Add a special note telling glibc's dynamic linker a fake hardware
19 * flavor that it will use to choose the search path for libraries in the
20 * same way it uses real hardware capabilities like "mmx".
21 * We supply "nosegneg" as the fake capability, to indicate that we
22 * do not like negative offsets in instructions using segment overrides,
23 * since we implement those inefficiently. This makes it possible to
24 * install libraries optimized to avoid those access patterns in someplace
25 * like /lib/i686/tls/nosegneg. Note that an /etc/ld.so.conf.d/file
26 * corresponding to the bits here is needed to make ldconfig work right.
27 * It should contain:
28 * hwcap 1 nosegneg
29 * to match the mapping of bit to name that we give here.
30 *
31 * At runtime, the fake hardware feature will be considered to be present
32 * if its bit is set in the mask word. So, we start with the mask 0, and
33 * at boot time we set VDSO_NOTE_NONEGSEG_BIT if running under Xen.
34 */
35
36#include "../xen/vdso.h" /* Defines VDSO_NOTE_NONEGSEG_BIT. */
37
38 .globl VDSO_NOTE_MASK
39ELFNOTE_START(GNU, 2, "a")
40 .long 1 /* ncaps */
41VDSO_NOTE_MASK:
42 .long 0 /* mask */
43 .byte VDSO_NOTE_NONEGSEG_BIT; .asciz "nosegneg" /* bit, name */
44ELFNOTE_END
45#endif