path: root/mm/Kconfig.debug
diff options
authorJinbum Park <>2017-02-27 14:30:22 -0800
committerLinus Torvalds <>2017-02-27 18:43:48 -0800
commit2959a5f726f6510d6dd7c958f8877e08d0cf589c (patch)
tree4c5490b936791a7c9373d0c1c52ccc99022194ee /mm/Kconfig.debug
parent8d85063adbb1eb3d168e226fef96995391462c20 (diff)
mm: add arch-independent testcases for RODATA
This patch makes arch-independent testcases for RODATA. Both x86 and x86_64 already have testcases for RODATA, But they are arch-specific because using inline assembly directly. And cacheflush.h is not a suitable location for rodata-test related things. Since they were in cacheflush.h, If someone change the state of CONFIG_DEBUG_RODATA_TEST, It cause overhead of kernel build. To solve the above issues, write arch-independent testcases and move it to shared location. [ fix config dependency] Link: Link: Signed-off-by: Jinbum Park <> Acked-by: Kees Cook <> Cc: Ingo Molnar <> Cc: H. Peter Anvin <> Cc: Arjan van de Ven <> Cc: Laura Abbott <> Cc: Russell King <> Cc: Valentin Rothberg <> Signed-off-by: Andrew Morton <> Signed-off-by: Linus Torvalds <>
Diffstat (limited to 'mm/Kconfig.debug')
1 files changed, 6 insertions, 0 deletions
diff --git a/mm/Kconfig.debug b/mm/Kconfig.debug
index afcc550877ff..79d0fd13b5b3 100644
--- a/mm/Kconfig.debug
+++ b/mm/Kconfig.debug
@@ -90,3 +90,9 @@ config DEBUG_PAGE_REF
careful when enabling this feature because it adds about 30 KB to the
kernel code. However the runtime performance overhead is virtually
nil until the tracepoints are actually enabled.
+ bool "Testcase for the marking rodata read-only"
+ depends on STRICT_KERNEL_RWX
+ ---help---
+ This option enables a testcase for the setting rodata read-only.