instructions during context switch. Say Y here only if you are
planning to use hardware trace tools with this kernel.
-config ARM64_RANDOMIZE_TEXT_OFFSET
- bool "Randomize TEXT_OFFSET at build time"
- help
- Say Y here if you want the image load offset (AKA TEXT_OFFSET)
- of the kernel to be randomized at build-time. When selected,
- this option will cause TEXT_OFFSET to be randomized upon any
- build of the kernel, and the offset will be reflected in the
- text_offset field of the resulting Image. This can be used to
- fuzz-test bootloaders which respect text_offset.
-
- This option is intended for bootloader and/or kernel testing
- only. Bootloaders must make no assumptions regarding the value
- of TEXT_OFFSET and platforms must not require a specific
- value.
-
-config DEBUG_WX
- bool "Warn on W+X mappings at boot"
- select PTDUMP_CORE
- ---help---
- Generate a warning if any W+X mappings are found at boot.
-
- This is useful for discovering cases where the kernel is leaving
- W+X mappings after applying NX, as such mappings are a security risk.
- This check also includes UXN, which should be set on all kernel
- mappings.
-
- Look for a message in dmesg output like this:
-
- arm64/mm: Checked W+X mappings: passed, no W+X pages found.
-
- or like this, if the check failed:
-
- arm64/mm: Checked W+X mappings: FAILED, <N> W+X pages found.
-
- Note that even if the check fails, your kernel is possibly
- still fine, as W+X mappings are not a security hole in
- themselves, what they do is that they make the exploitation
- of other unfixed kernel bugs easier.
-
- There is no runtime or memory usage effect of this option
- once the kernel has booted up - it's a one time check.
-
- If in doubt, say "Y".
-
config DEBUG_EFI
depends on EFI && DEBUG_INFO
bool "UEFI debugging"
projects / linux-2.6-microblaze.git / blobdiff