import PULS_20160108

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / arm / Kconfig.debug

diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 1d41908d5cda0644a31a9048c882369f21db235b..a640f09ec84294cb1c2610c4fa73265637696734 100644 (file)
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -63,6 +63,27 @@ config DEBUG_USER
              8 - SIGSEGV faults
             16 - SIGBUS faults
 
+config DEBUG_RODATA
+       bool "Write protect kernel text section"
+       default n
+       depends on DEBUG_KERNEL && MMU
+       ---help---
+         Mark the kernel text section as write-protected in the pagetables,
+         in order to catch accidental (and incorrect) writes to such const
+         data. This will cause the size of the kernel, plus up to 4MB, to
+         be mapped as pages instead of sections, which will increase TLB
+         pressure.
+         If in doubt, say "N".
+
+config DEBUG_RODATA_TEST
+       bool "Testcase for the DEBUG_RODATA feature"
+       depends on DEBUG_RODATA
+       default n
+       ---help---
+         This option enables a testcase for the DEBUG_RODATA
+         feature.
+         If in doubt, say "N"
+
 # These options are only for real kernel hackers who want to get their hands dirty.
 config DEBUG_LL
        bool "Kernel low-level debugging functions (read help!)"
@@ -669,6 +690,14 @@ config EARLY_PRINTK
          kernel low-level debugging functions. Add earlyprintk to your
          kernel parameters to enable this console.
 
+config EARLY_PRINTK_DIRECT
+       bool "Early printk direct"
+       depends on DEBUG_LL
+       help
+         Say Y here if you want to have an early console using the
+         kernel low-level debugging functions and EARLY_PRINTK is
+         not early enough.
+
 config OC_ETM
        bool "On-chip ETM and ETB"
        depends on ARM_AMBA