| menu "Kernel hacking" |
| |
| config TRACE_IRQFLAGS_SUPPORT |
| bool |
| default y |
| |
| source "lib/Kconfig.debug" |
| |
| config STRICT_DEVMEM |
| def_bool y |
| prompt "Filter access to /dev/mem" |
| ---help--- |
| This option restricts access to /dev/mem. If this option is |
| disabled, you allow userspace access to all memory, including |
| kernel and userspace memory. Accidental memory access is likely |
| to be disastrous. |
| Memory access is required for experts who want to debug the kernel. |
| |
| If you are unsure, say Y. |
| |
| config DEBUG_STRICT_USER_COPY_CHECKS |
| bool "Strict user copy size checks" |
| ---help--- |
| Enabling this option turns a certain set of sanity checks for user |
| copy operations into compile time warnings. |
| |
| The copy_from_user() etc checks are there to help test if there |
| are sufficient security checks on the length argument of |
| the copy operation, by having gcc prove that the argument is |
| within bounds. |
| |
| If unsure, or if you run an older (pre 4.4) gcc, say N. |
| |
| endmenu |
