3 source "lib/Kconfig.debug"
6 bool "Export kernel pagetable layout to userspace via debugfs"
7 depends on DEBUG_KERNEL
10 Say Y here if you want to show the kernel pagetable layout in a
11 debugfs file. This information is only useful for kernel developers
12 who are working in architecture specific areas of the kernel.
13 It is probably not a good idea to enable this feature in a production
18 config PID_IN_CONTEXTIDR
19 bool "Write the current PID to the CONTEXTIDR register"
21 Enabling this option causes the kernel to write the current PID to
22 the CONTEXTIDR register, at the expense of some additional
23 instructions during context switch. Say Y here only if you are
24 planning to use hardware trace tools with this kernel.
26 config ARM64_RANDOMIZE_TEXT_OFFSET
27 bool "Randomize TEXT_OFFSET at build time"
29 Say Y here if you want the image load offset (AKA TEXT_OFFSET)
30 of the kernel to be randomized at build-time. When selected,
31 this option will cause TEXT_OFFSET to be randomized upon any
32 build of the kernel, and the offset will be reflected in the
33 text_offset field of the resulting Image. This can be used to
34 fuzz-test bootloaders which respect text_offset.
36 This option is intended for bootloader and/or kernel testing
37 only. Bootloaders must make no assumptions regarding the value
38 of TEXT_OFFSET and platforms must not require a specific
41 config DEBUG_SET_MODULE_RONX
42 bool "Set loadable kernel module data as NX and text as RO"
46 Is this is set, kernel module text and rodata will be made read-only.
47 This is to help catch accidental or malicious attempts to change the
48 kernel's executable code.
53 bool "Make kernel text and rodata read-only"
56 If this is set, kernel text and rodata will be made read-only. This
57 is to help catch accidental or malicious attempts to change the
58 kernel's executable code.
62 config DEBUG_ALIGN_RODATA
63 depends on DEBUG_RODATA
64 bool "Align linker sections up to SECTION_SIZE"
66 If this option is enabled, sections that may potentially be marked as
67 read only or non-executable will be aligned up to the section size of
68 the kernel. This prevents sections from being split into pages and
69 avoids a potential TLB penalty. The downside is an increase in
70 alignment and potentially wasted space. Turn on this option if
71 performance is more important than memory pressure.
75 source "drivers/hwtracing/coresight/Kconfig"