3 config TRACE_IRQFLAGS_SUPPORT
7 source "lib/Kconfig.debug"
11 prompt "Filter access to /dev/mem"
13 This option restricts access to /dev/mem. If this option is
14 disabled, you allow userspace access to all memory, including
15 kernel and userspace memory. Accidental memory access is likely
17 Memory access is required for experts who want to debug the kernel.
19 If you are unsure, say Y.
21 config DEBUG_STRICT_USER_COPY_CHECKS
22 bool "Strict user copy size checks"
24 Enabling this option turns a certain set of sanity checks for user
25 copy operations into compile time warnings.
27 The copy_from_user() etc checks are there to help test if there
28 are sufficient security checks on the length argument of
29 the copy operation, by having gcc prove that the argument is
32 If unsure, or if you run an older (pre 4.4) gcc, say N.