diff options
| author | Jeremy Linton <jeremy.linton@arm.com> | 2016-02-19 11:50:32 -0600 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2016-02-26 15:08:04 +0000 |
| commit | 2f39b5f91eb4bccd786d194e70db1dccad784755 (patch) | |
| tree | 726713a839445a87a77fa05fb369cd0107e60346 /arch/arm64/kernel/vmlinux.lds.S | |
| parent | b7dc8d16e76c25409d93ff3aceda42fc386efc4e (diff) | |
arm64: mm: Mark .rodata as RO
Currently the .rodata section is actually still executable when DEBUG_RODATA
is enabled. This changes that so the .rodata is actually read only, no execute.
It also adds the .rodata section to the mem_init banner.
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
[catalin.marinas@arm.com: added vm_struct vmlinux_rodata in map_kernel()]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/kernel/vmlinux.lds.S')
| -rw-r--r-- | arch/arm64/kernel/vmlinux.lds.S | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S index e3f6cd740ea3..4c56e7a0621b 100644 --- a/arch/arm64/kernel/vmlinux.lds.S +++ b/arch/arm64/kernel/vmlinux.lds.S @@ -114,8 +114,9 @@ SECTIONS *(.got) /* Global offset table */ } - RO_DATA(PAGE_SIZE) - EXCEPTION_TABLE(8) + ALIGN_DEBUG_RO_MIN(PAGE_SIZE) + RO_DATA(PAGE_SIZE) /* everything from this point to */ + EXCEPTION_TABLE(8) /* _etext will be marked RO NX */ NOTES ALIGN_DEBUG_RO_MIN(PAGE_SIZE) |