]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/commit
ARM: 8748/1: mm: Define vdso_start, vdso_end as array
authorJinbum Park <jinb.park7@gmail.com>
Tue, 6 Mar 2018 00:37:21 +0000 (01:37 +0100)
committerRussell King <rmk+kernel@armlinux.org.uk>
Sat, 24 Mar 2018 14:27:49 +0000 (14:27 +0000)
commit73b9160d0dfe44dfdaffd6465dc1224c38a4a73c
tree47b6632f6933c8c797d43ee7eb3b6af10e08af83
parentad43fc9aa24e9fc9ad780faad62fd78a09da839c
ARM: 8748/1: mm: Define vdso_start, vdso_end as array

Define vdso_start, vdso_end as array to avoid compile-time analysis error
for the case of built with CONFIG_FORTIFY_SOURCE.

and, since vdso_start, vdso_end are used in vdso.c only,
move extern-declaration from vdso.h to vdso.c.

If kernel is built with CONFIG_FORTIFY_SOURCE,
compile-time error happens at this code.
- if (memcmp(&vdso_start, "177ELF", 4))

The size of "&vdso_start" is recognized as 1 byte, but n is 4,
So that compile-time error is reported.

Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jinbum Park <jinb.park7@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
arch/arm/include/asm/vdso.h
arch/arm/kernel/vdso.c