path: root/arch/parisc/Kconfig.debug
diff options
authorHelge Deller <>2006-01-13 13:21:06 -0700
committerKyle McMartin <>2006-01-22 20:26:54 -0500
commit1bcdd8548286743e1d6b3d53c96a90c6da975620 (patch)
treeb244aa416992bbd06c4153ec2c97022629826ef2 /arch/parisc/Kconfig.debug
parenta2bb214dcd1db862fdb6421e21f1cff0c3535162 (diff)
[PARISC] Add CONFIG_DEBUG_RODATA to protect read-only data
Add the parisc version of the "mark rodata section read only" patches. Based on code from and Signed-off-by Arjan van de Ven <>, Ingo Molnar <>, Andi Kleen <>, Andrew Morton <>, Linus Torvalds <>. Signed-off-by: Helge Deller <> Signed-off-by: Kyle McMartin <>
Diffstat (limited to 'arch/parisc/Kconfig.debug')
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/parisc/Kconfig.debug b/arch/parisc/Kconfig.debug
index 8caaed187a1f..9166bd117267 100644
--- a/arch/parisc/Kconfig.debug
+++ b/arch/parisc/Kconfig.debug
@@ -11,4 +11,14 @@ config DEBUG_RWLOCK
too many attempts. If you suspect a rwlock problem or a kernel
hacker asks for this option then say Y. Otherwise say N.
+ bool "Write protect kernel read-only data structures"
+ depends on DEBUG_KERNEL
+ help
+ Mark the kernel read-only data as write-protected in the pagetables,
+ in order to catch accidental (and incorrect) writes to such const
+ data. This option may have a slight performance impact because a
+ portion of the kernel code won't be covered by a TLB anymore.
+ If in doubt, say "N".