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authorHelge Deller <deller@parisc-linux.org>2006-01-13 15:21:06 -0500
committerKyle McMartin <kyle@duet.int.mcmartin.ca>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 <arjan@infradead.org>, Ingo Molnar <mingo@elte.hu>, Andi Kleen <ak@muc.de>, Andrew Morton <akpm@osdl.org>, Linus Torvalds <torvalds@osdl.org>. Signed-off-by: Helge Deller <deller@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Diffstat (limited to 'arch/parisc/Kconfig.debug')
-rw-r--r--arch/parisc/Kconfig.debug10
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
11 too many attempts. If you suspect a rwlock problem or a kernel 11 too many attempts. If you suspect a rwlock problem or a kernel
12 hacker asks for this option then say Y. Otherwise say N. 12 hacker asks for this option then say Y. Otherwise say N.
13 13
14config DEBUG_RODATA
15 bool "Write protect kernel read-only data structures"
16 depends on DEBUG_KERNEL
17 help
18 Mark the kernel read-only data as write-protected in the pagetables,
19 in order to catch accidental (and incorrect) writes to such const
20 data. This option may have a slight performance impact because a
21 portion of the kernel code won't be covered by a TLB anymore.
22 If in doubt, say "N".
23
14endmenu 24endmenu