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| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2007-05-02 19:27:12 +0200 |
|---|---|---|
| committer | Andi Kleen <andi@basil.nowhere.org> | 2007-05-02 19:27:12 +0200 |
| commit | d4f7a2c18e59e0304a1c733589ce14fc02fec1bd (patch) | |
| tree | 99c64275f7eb50925aad71a74ae083ececdbb795 /include/linux/elf.h | |
| parent | a6c4e076ee4c1ea670e4faa55814e63dd08e3f29 (diff) | |
| download | linux-d4f7a2c18e59e0304a1c733589ce14fc02fec1bd.tar.gz linux-d4f7a2c18e59e0304a1c733589ce14fc02fec1bd.tar.bz2 linux-d4f7a2c18e59e0304a1c733589ce14fc02fec1bd.zip | |
[PATCH] i386: Relocate VDSO ELF headers to match mapped location with COMPAT_VDSO
Some versions of libc can't deal with a VDSO which doesn't have its
ELF headers matching its mapped address. COMPAT_VDSO maps the VDSO at
a specific system-wide fixed address. Previously this was all done at
build time, on the grounds that the fixed VDSO address is always at
the top of the address space. However, a hypervisor may reserve some
of that address space, pushing the fixmap address down.
This patch does the adjustment dynamically at runtime, depending on
the runtime location of the VDSO fixmap.
[ Patch has been through several hands: Jan Beulich wrote the orignal
version; Zach reworked it, and Jeremy converted it to relocate phdrs
as well as sections. ]
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Zachary Amsden <zach@vmware.com>
Cc: "Jan Beulich" <JBeulich@novell.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Roland McGrath <roland@redhat.com>
Diffstat (limited to 'include/linux/elf.h')
| -rw-r--r-- | include/linux/elf.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/linux/elf.h b/include/linux/elf.h index 60713e6ea297..8b17ffe222c4 100644 --- a/include/linux/elf.h +++ b/include/linux/elf.h @@ -83,6 +83,23 @@ typedef __s64 Elf64_Sxword; #define DT_DEBUG 21 #define DT_TEXTREL 22 #define DT_JMPREL 23 +#define DT_ENCODING 32 +#define OLD_DT_LOOS 0x60000000 +#define DT_LOOS 0x6000000d +#define DT_HIOS 0x6ffff000 +#define DT_VALRNGLO 0x6ffffd00 +#define DT_VALRNGHI 0x6ffffdff +#define DT_ADDRRNGLO 0x6ffffe00 +#define DT_ADDRRNGHI 0x6ffffeff +#define DT_VERSYM 0x6ffffff0 +#define DT_RELACOUNT 0x6ffffff9 +#define DT_RELCOUNT 0x6ffffffa +#define DT_FLAGS_1 0x6ffffffb +#define DT_VERDEF 0x6ffffffc +#define DT_VERDEFNUM 0x6ffffffd +#define DT_VERNEED 0x6ffffffe +#define DT_VERNEEDNUM 0x6fffffff +#define OLD_DT_HIOS 0x6fffffff #define DT_LOPROC 0x70000000 #define DT_HIPROC 0x7fffffff |