you say Y here, you will be offered the choice of using features or
drivers that are currently considered to be in the alpha-test phase.
-config CLEAN_COMPILE
- bool "Select only drivers expected to compile cleanly" if EXPERIMENTAL
- default y
- help
- Select this option if you don't even want to see the option
- to configure known-broken drivers.
-
- If unsure, say Y
-
config BROKEN
bool
- depends on !CLEAN_COMPILE
- default y
config BROKEN_ON_SMP
bool
default 32 if !USERMODE
default 128 if USERMODE
help
- This is the value of the two limits on the number of argument and of
- env.var passed to init from the kernel command line.
+ Maximum of each of the number of arguments and environment
+ variables passed to init from the kernel command line.
endmenu
object and source tree, in that order. Your total string can
be a maximum of 64 characters.
+config LOCALVERSION_AUTO
+ bool "Automatically append version information to the version string"
+ default y
+ help
+ This will try to automatically determine if the current tree is a
+ release tree by looking for git tags that
+ belong to the current top of tree revision.
+
+ A string of the format -gxxxxxxxx will be added to the localversion
+ if a git based tree is found. The string generated by this will be
+ appended after any matching localversion* files, and after the value
+ set in CONFIG_LOCALVERSION
+
+ Note: This requires Perl, and a git repository, but not necessarily
+ the git or cogito tools to be installed.
+
config SWAP
bool "Support for paging of anonymous memory (swap)"
depends on MMU
default y
help
This option allows you to choose whether you want to have support
- for socalled swap devices or swap files in your kernel that are
+ for so called swap devices or swap files in your kernel that are
used to provide more virtual memory than the actual RAM present
in your computer. If unsure say Y.
config SYSVIPC
bool "System V IPC"
- depends on MMU
---help---
Inter Process Communication is a suite of library functions and
system calls which let processes (running programs) synchronize and
config AUDIT
bool "Auditing support"
- default y if SECURITY_SELINUX
+ depends on NET
help
Enable auditing infrastructure that can be used with another
kernel subsystem, such as SELinux (which requires this for
config AUDITSYSCALL
bool "Enable system-call auditing support"
- depends on AUDIT && (X86 || PPC64 || ARCH_S390 || IA64 || UML)
+ depends on AUDIT && (X86 || PPC || PPC64 || S390 || IA64 || UML || SPARC64)
default y if SECURITY_SELINUX
help
Enable low-overhead system-call auditing infrastructure that
can be used independently or with another kernel subsystem,
such as SELinux.
-config HOTPLUG
- bool "Support for hot-pluggable devices" if !ARCH_S390
- default ARCH_S390
- help
- 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.
-
-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"
---help---
bool "Cpuset support"
depends on SMP
help
- This options will let you create and manage CPUSET's which
+ This option will let you create and manage CPUSETs which
allow dynamically partitioning a system into sets of CPUs and
Memory Nodes and assigning tasks to run only within those sets.
This is primarily useful on large SMP or NUMA systems.
Say N if unsure.
+config RELAY
+ bool "Kernel->user space relay support (formerly relayfs)"
+ help
+ This option enables support for relay interface support in
+ certain file systems (such as debugfs).
+ It is designed to provide an efficient mechanism for tools and
+ facilities to relay large amounts of data from kernel space to
+ user space.
+
+ If unsure, say N.
+
+source "usr/Kconfig"
+
+config UID16
+ bool "Enable 16-bit UID system calls" if EMBEDDED
+ depends on ARM || CRIS || FRV || H8300 || X86_32 || M68K || (S390 && !64BIT) || SUPERH || SPARC32 || (SPARC64 && SPARC32_COMPAT) || UML || (X86_64 && IA32_EMULATION)
+ default y
+ help
+ This enables the legacy 16-bit UID syscall wrappers.
+
+config VM86
+ depends X86
+ default y
+ bool "Enable VM86 support" if EMBEDDED
+ help
+ This option is required by programs like DOSEMU to run 16-bit legacy
+ code on X86 processors. It also may be needed by software like
+ XFree86 to initialize some video cards via BIOS. Disabling this
+ option saves about 6k.
+
+config CC_OPTIMIZE_FOR_SIZE
+ bool "Optimize for size (Look out for broken compilers!)"
+ default y
+ depends on ARM || H8300 || EXPERIMENTAL
+ help
+ Enabling this option will pass "-Os" instead of "-O2" to gcc
+ resulting in a smaller kernel.
+
+ WARNING: some versions of gcc may generate incorrect code with this
+ option. If problems are observed, a gcc upgrade may be needed.
+
+ If unsure, say N.
+
menuconfig EMBEDDED
bool "Configure standard kernel features (for small systems)"
help
help
Normally kallsyms only contains the symbols of functions, for nicer
OOPS messages. Some debuggers can use kallsyms for other
- symbols too: say Y here to include all symbols, and you
- don't care about adding 300k to the size of your kernel.
+ symbols too: say Y here to include all symbols, if you need them
+ and you don't care about adding 300k to the size of your kernel.
Say N.
you wait for kallsyms to be fixed.
+config HOTPLUG
+ bool "Support for hot-pluggable devices" if EMBEDDED
+ default y
+ help
+ This option is provided for the case where no hotplug or uevent
+ capabilities is wanted by the kernel. You should only consider
+ disabling this option for embedded systems that do not use modules, a
+ dynamic /dev tree, or dynamic device discovery. Just say Y.
+
config PRINTK
default y
bool "Enable support for printk" if EMBEDDED
option for embedded systems with no facilities for reporting errors.
Just say Y.
+config ELF_CORE
+ default y
+ bool "Enable ELF core dumps" if EMBEDDED
+ help
+ Enable support for generating core dumps. Disabling saves about 4k.
+
config BASE_FULL
default y
bool "Enable full-sized data structures for core" if EMBEDDED
Disabling this option will cause the kernel to be built without
support for epoll family of system calls.
-config CC_OPTIMIZE_FOR_SIZE
- bool "Optimize for size" if EMBEDDED
- default y if ARM || H8300
- help
- Enabling this option will pass "-Os" instead of "-O2" to gcc
- resulting in a smaller kernel.
-
- WARNING: some versions of gcc may generate incorrect code with this
- option. If problems are observed, a gcc upgrade may be needed.
-
- If unsure, say N.
-
config SHMEM
bool "Use full shmem filesystem" if EMBEDDED
default y
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
+config SLAB
+ default y
+ bool "Use full SLAB allocator" if EMBEDDED
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.
+ Disabling this replaces the advanced SLAB allocator and
+ kmalloc support with the drastically simpler SLOB allocator.
+ SLOB is more space efficient but does not scale well and is
+ more susceptible to fragmentation.
endmenu # General setup
default 0 if BASE_FULL
default 1 if !BASE_FULL
+config SLOB
+ default !SLAB
+ bool
+
+config OBSOLETE_INTERMODULE
+ tristate
+
menu "Loadable module support"
config MODULES
rmmod). This is mainly for kernel developers and desperate users.
If unsure, say N.
-config OBSOLETE_MODPARM
- bool
- default y
- depends on MODULES
- help
- You need this option to use module parameters on modules which
- have not been converted to the new module parameter system yet.
- If unsure, say Y.
-
config MODVERSIONS
- bool "Module versioning support (EXPERIMENTAL)"
- depends on MODULES && EXPERIMENTAL
+ bool "Module versioning support"
+ depends on MODULES
help
Usually, you have to use modules compiled with your kernel.
Saying Y here makes it sometimes possible to use modules
the version). With this option, such a "srcversion" field
will be created for all modules. If unsure, say N.
+config MODULE_SIG
+ bool "Module signature verification (EXPERIMENTAL)"
+ depends on MODULES && EXPERIMENTAL
+ select CRYPTO
+ select CRYPTO_SHA1
+ select CRYPTO_SIGNATURE
+ help
+ Check modules for valid signatures upon load.
+
+config MODULE_SIG_FORCE
+ bool "Required modules to be validly signed (EXPERIMENTAL)"
+ depends on MODULE_SIG
+ help
+ Reject unsigned modules or signed modules for which we don't have a
+ key.
+
config KMOD
bool "Automatic kernel module loading"
depends on MODULES
help
Need stop_machine() primitive.
endmenu
+
+menu "Block layer"
+source "block/Kconfig"
+endmenu
git://git.onelab.eu / linux-2.6.git / blobdiff