-
menu "Code maturity level options"
config EXPERIMENTAL
depends on BROKEN || !SMP
default y
-endmenu
+config LOCK_KERNEL
+ bool
+ depends on SMP || PREEMPT
+ default y
+endmenu
menu "General setup"
+config LOCALVERSION
+ string "Local version - append to kernel release"
+ help
+ Append an extra string to the end of your kernel version.
+ This will show up when you type uname, for example.
+ The string you set here will be appended after the contents of
+ any files with a filename matching localversion* in your
+ object and source tree, in that order. Your total string can
+ be a maximum of 64 characters.
+
config SWAP
bool "Support for paging of anonymous memory (swap)"
depends on MMU
process and it's parent. Note that this file format is incompatible
with previous v0/v1/v2 file formats, so you will need updated tools
for processing it. A preliminary version of these tools is available
- at <http://http://www.de.kernel.org/pub/linux/utils/acct/>.
+ at <http://www.physik3.uni-rostock.de/tim/kernel/utils/acct/>.
config SYSCTL
bool "Sysctl support"
config LOG_BUF_SHIFT
int "Kernel log buffer size (16 => 64KB, 17 => 128KB)" if DEBUG_KERNEL
- range 12 20
+ range 12 21
default 17 if ARCH_S390
default 16 if X86_NUMAQ || IA64
default 15 if SMP
bool "Support for hot-pluggable devices" if !ARCH_S390
default ARCH_S390
help
- Say Y here if you want to plug devices into your computer while
- the system is running, and be able to use them quickly. In many
- cases, the devices can likewise be unplugged at any time too.
-
- One well known example of this is PCMCIA- or PC-cards, credit-card
- size devices such as network cards, modems or hard drives which are
- plugged into slots found on all modern laptop computers. Another
- example, used on modern desktops as well as laptops, is USB.
+ This option is provided for the case where no in-kernel-tree
+ modules require HOTPLUG functionality, but a module built
+ outside the kernel tree does. Such modules require Y here.
- Enable HOTPLUG and KMOD, and build a modular kernel. Get agent
- software (at <http://linux-hotplug.sourceforge.net/>) and install it.
- Then your kernel will automatically call out to a user mode "policy
- agent" (/sbin/hotplug) to load modules and set up software needed
- to use devices as you hotplug them.
+config KOBJECT_UEVENT
+ bool "Kernel Userspace Events"
+ depends on NET
+ default y
+ help
+ This option enables the kernel userspace event layer, which is a
+ simple mechanism for kernel-to-user communication over a netlink
+ socket.
+ The goal of the kernel userspace events layer is to provide a simple
+ and efficient events system, that notifies userspace about kobject
+ state changes. This will enable applications to just listen for
+ events instead of polling system devices and files.
+ Hotplug events (kobject addition and removal) are also available on
+ the netlink socket in addition to the execution of /sbin/hotplug if
+ CONFIG_HOTPLUG is enabled.
+
+ Say Y, unless you are building a system requiring minimal memory
+ consumption.
config IKCONFIG
bool "Kernel .config support"
Disabling this option will cause the kernel to be built without
support for epoll family of system calls.
-source "drivers/block/Kconfig.iosched"
-
config CC_OPTIMIZE_FOR_SIZE
bool "Optimize for size" if EMBEDDED
default y if ARM || H8300
If unsure, say N.
+config SHMEM
+ bool "Use full shmem filesystem" if EMBEDDED
+ default y
+ depends on MMU
+ help
+ The shmem is an internal filesystem used to manage shared memory.
+ It is backed by swap and manages resource limits. It is also exported
+ to userspace as tmpfs if TMPFS is enabled. Disabling this
+ option replaces shmem and tmpfs with the much simpler ramfs code,
+ which may be appropriate on small systems without swap.
+
+config CC_ALIGN_FUNCTIONS
+ int "Function alignment" if EMBEDDED
+ default 0
+ help
+ Align the start of functions to the next power-of-two greater than n,
+ skipping up to n bytes. For instance, 32 aligns functions
+ to the next 32-byte boundary, but 24 would align to the next
+ 32-byte boundary only if this can be done by skipping 23 bytes or less.
+ Zero means use compiler's default.
+
+config CC_ALIGN_LABELS
+ int "Label alignment" if EMBEDDED
+ default 0
+ help
+ Align all branch targets to a power-of-two boundary, skipping
+ up to n bytes like ALIGN_FUNCTIONS. This option can easily
+ make code slower, because it must insert dummy operations for
+ when the branch target is reached in the usual flow of the code.
+ Zero means use compiler's default.
+
+config CC_ALIGN_LOOPS
+ int "Loop alignment" if EMBEDDED
+ default 0
+ help
+ Align loops to a power-of-two boundary, skipping up to n bytes.
+ Zero means use compiler's default.
+
+config CC_ALIGN_JUMPS
+ int "Jump alignment" if EMBEDDED
+ default 0
+ help
+ Align branch targets to a power-of-two boundary, for branch
+ targets where the targets can only be reached by jumping,
+ skipping up to n bytes like ALIGN_FUNCTIONS. In this case,
+ no dummy operations need be executed.
+ Zero means use compiler's default.
+
endmenu # General setup
+config TINY_SHMEM
+ default !SHMEM
+ bool
menu "Loadable module support"
config MODVERSIONS
bool "Module versioning support (EXPERIMENTAL)"
- depends on MODULES && EXPERIMENTAL
+ depends on MODULES && EXPERIMENTAL && !USERMODE
help
Usually, you have to use modules compiled with your kernel.
Saying Y here makes it sometimes possible to use modules
make them incompatible with the kernel you are running. If
unsure, say N.
+config MODULE_SRCVERSION_ALL
+ bool "Source checksum for all modules"
+ depends on MODULES
+ help
+ Modules which contain a MODULE_VERSION get an extra "srcversion"
+ field inserted into their modinfo section, which contains a
+ sum of the source files which made it. This helps maintainers
+ see exactly which source was used to build a module (since
+ others sometimes change the module source without updating
+ the version). With this option, such a "srcversion" field
+ will be created for all modules. If unsure, say N.
+
config KMOD
bool "Automatic kernel module loading"
depends on MODULES
git://git.onelab.eu / linux-2.6.git / blobdiff