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| author | Jinbum Park <jinb.park7@gmail.com> | 2018-03-06 03:37:21 +0300 |
|---|---|---|
| committer | Russell King <rmk+kernel@armlinux.org.uk> | 2018-03-24 17:27:49 +0300 |
| commit | 73b9160d0dfe44dfdaffd6465dc1224c38a4a73c (patch) | |
| tree | 47b6632f6933c8c797d43ee7eb3b6af10e08af83 /arch/arm/include | |
| parent | ad43fc9aa24e9fc9ad780faad62fd78a09da839c (diff) | |
| download | linux-73b9160d0dfe44dfdaffd6465dc1224c38a4a73c.tar.xz | |
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>
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/vdso.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/arm/include/asm/vdso.h b/arch/arm/include/asm/vdso.h index 9c99e817535e..5b85889f82ee 100644 --- a/arch/arm/include/asm/vdso.h +++ b/arch/arm/include/asm/vdso.h @@ -12,8 +12,6 @@ struct mm_struct; void arm_install_vdso(struct mm_struct *mm, unsigned long addr); -extern char vdso_start, vdso_end; - extern unsigned int vdso_total_pages; #else /* CONFIG_VDSO */ |