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1 | menu "Kernel hacking" |
2 | |
3 | config TRACE_IRQFLAGS_SUPPORT |
4 | bool |
5 | default y |
6 | |
7 | source "lib/Kconfig.debug" |
8 | |
9 | config 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 | |
21 | config 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 | |
34 | endmenu |
35 |
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
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v3.9