The patch titled
i386: Put allocated ELF notes in read-only data segment
has been added to the -mm tree. Its filename is
i386-put-allocated-elf-notes-in-read-only-data-segment.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: i386: Put allocated ELF notes in read-only data segment
From: Roland McGrath <roland@xxxxxxxxxx>
This changes the i386 linker script and the asm-generic macro it uses so that
ELF note sections with SHF_ALLOC set are linked into the kernel image along
with other read-only data. The PT_NOTE also points to their location.
This paves the way for putting useful build-time information into ELF notes
that can be found easily later in a kernel memory dump.
Signed-off-by: Roland McGrath <roland@xxxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: Richard Henderson <rth@xxxxxxxxxxx>
Cc: Ivan Kokshaysky <ink@xxxxxxxxxxxxxxxxxxxx>
Cc: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Cc: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/i386/kernel/vmlinux.lds.S | 6 +++---
include/asm-generic/vmlinux.lds.h | 6 +++++-
2 files changed, 8 insertions(+), 4 deletions(-)
diff -puN arch/i386/kernel/vmlinux.lds.S~i386-put-allocated-elf-notes-in-read-only-data-segment arch/i386/kernel/vmlinux.lds.S
--- a/arch/i386/kernel/vmlinux.lds.S~i386-put-allocated-elf-notes-in-read-only-data-segment
+++ a/arch/i386/kernel/vmlinux.lds.S
@@ -60,7 +60,9 @@ SECTIONS
__stop___ex_table = .;
}
- BUG_TABLE
+ NOTES :text :note
+
+ BUG_TABLE :text
. = ALIGN(4);
.tracedata : AT(ADDR(.tracedata) - LOAD_OFFSET) {
@@ -210,6 +212,4 @@ SECTIONS
STABS_DEBUG
DWARF_DEBUG
-
- NOTES
}
diff -puN include/asm-generic/vmlinux.lds.h~i386-put-allocated-elf-notes-in-read-only-data-segment include/asm-generic/vmlinux.lds.h
--- a/include/asm-generic/vmlinux.lds.h~i386-put-allocated-elf-notes-in-read-only-data-segment
+++ a/include/asm-generic/vmlinux.lds.h
@@ -246,7 +246,11 @@
}
#define NOTES \
- .notes : { *(.note.*) } :note
+ .notes : AT(ADDR(.notes) - LOAD_OFFSET) { \
+ VMLINUX_SYMBOL(__start_notes) = .; \
+ *(.note.*) \
+ VMLINUX_SYMBOL(__stop_notes) = .; \
+ }
#define INITCALLS \
*(.initcall0.init) \
_
Patches currently in -mm which might be from roland@xxxxxxxxxx are
powerpc-vdso-install-unstripped-copies-on-disk.patch
pass-g-to-assembler-under-config_debug_info.patch
x86-use-elfnoteh-to-generate-vsyscall-notes-fix.patch
make-alt-sysrq-p-display-the-debug-register-contents.patch
i386-vdso-install-unstripped-copies-on-disk.patch
x86_64-ia32-vdso-install-unstripped-copies-on-disk.patch
clone-flag-clone_parent_tidptr-leaves-invalid-results-in-memory.patch
pie-randomization.patch
i386-put-allocated-elf-notes-in-read-only-data-segment.patch
x86_64-put-allocated-elf-notes-in-read-only-data-segment.patch
alpha-put-allocated-elf-notes-in-read-only-data-segment.patch
powerpc-put-allocated-elf-notes-in-read-only-data-segment.patch
s390-put-allocated-elf-notes-in-read-only-data-segment.patch
add-sys-kernel-notes.patch
use-build-id-ld-option.patch
-
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