Root/arch/s390/Kconfig.debug

1menu "Kernel hacking"
2
3config TRACE_IRQFLAGS_SUPPORT
4    bool
5    default y
6
7source "lib/Kconfig.debug"
8
9config STRICT_DEVMEM
10    def_bool y
11    prompt "Filter access to /dev/mem"
12    ---help---
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
16      to be disastrous.
17      Memory access is required for experts who want to debug the kernel.
18
19      If you are unsure, say Y.
20
21config DEBUG_STRICT_USER_COPY_CHECKS
22    bool "Strict user copy size checks"
23    ---help---
24      Enabling this option turns a certain set of sanity checks for user
25      copy operations into compile time warnings.
26
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
30      within bounds.
31
32      If unsure, or if you run an older (pre 4.4) gcc, say N.
33
34endmenu
35

Archive Download this file



interactive