diff options
| author | Laura Abbott <labbott@redhat.com> | 2017-02-07 01:31:57 +0100 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2017-02-07 21:32:52 +0100 |
| commit | ad21fc4faa2a1f919bac1073b885df9310dbc581 (patch) | |
| tree | 0e72a0b209f7e84daf6a131bdbc673cd60715037 /arch/arm/mm | |
| parent | Linux 4.10-rc2 (diff) | |
| download | linux-ad21fc4faa2a1f919bac1073b885df9310dbc581.tar.xz linux-ad21fc4faa2a1f919bac1073b885df9310dbc581.zip | |
arch: Move CONFIG_DEBUG_RODATA and CONFIG_SET_MODULE_RONX to be common
There are multiple architectures that support CONFIG_DEBUG_RODATA and
CONFIG_SET_MODULE_RONX. These options also now have the ability to be
turned off at runtime. Move these to an architecture independent
location and make these options def_bool y for almost all of those
arches.
Signed-off-by: Laura Abbott <labbott@redhat.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'arch/arm/mm')
| -rw-r--r-- | arch/arm/mm/Kconfig | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index f68e8ec29447..419a0355d4e4 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -1051,18 +1051,6 @@ config ARCH_SUPPORTS_BIG_ENDIAN This option specifies the architecture can support big endian operation. -config DEBUG_RODATA - bool "Make kernel text and rodata read-only" - depends on MMU && !XIP_KERNEL - default y if CPU_V7 - help - If this is set, kernel text and rodata memory will be made - read-only, and non-text kernel memory will be made non-executable. - The tradeoff is that each region is padded to section-size (1MiB) - boundaries (because their permissions are different and splitting - the 1M pages into 4K ones causes TLB performance problems), which - can waste memory. - config DEBUG_ALIGN_RODATA bool "Make rodata strictly non-executable" depends on DEBUG_RODATA |