X-Git-Url: http://git.openwrt.org/?a=blobdiff_plain;f=config%2FConfig-kernel.in;h=20930326cad8356948e9753c9146e192bcca8f3f;hb=5f6833395293548f9fdf4897d9766417f2990bac;hp=d8ca76cf1d96dc0ab8f2a2f60b465e62c34b776f;hpb=39d817cf38cac58d4383012adc13dc2e3606f4f7;p=openwrt%2Fopenwrt.git diff --git a/config/Config-kernel.in b/config/Config-kernel.in index d8ca76cf1d..20930326ca 100644 --- a/config/Config-kernel.in +++ b/config/Config-kernel.in @@ -6,6 +6,7 @@ config KERNEL_BUILD_USER string "Custom Kernel Build User Name" + default "builder" if BUILDBOT default "" help Sets the Kernel build user string, which for example will be returned @@ -14,6 +15,7 @@ config KERNEL_BUILD_USER config KERNEL_BUILD_DOMAIN string "Custom Kernel Build Domain Name" + default "buildhost" if BUILDBOT default "" help Sets the Kernel build domain string, which for example will be @@ -26,12 +28,12 @@ config KERNEL_PRINTK config KERNEL_CRASHLOG bool "Crash logging" - depends on !(arm || powerpc || sparc || TARGET_uml) + depends on !(arm || powerpc || sparc || TARGET_uml || i386 || x86_64) default y config KERNEL_SWAP bool "Support for paging of anonymous memory (swap)" - default y + default y if !SMALL_FLASH config KERNEL_DEBUG_FS bool "Compile the kernel with debug filesystem enabled" @@ -42,15 +44,38 @@ config KERNEL_DEBUG_FS write to these files. Many common debugging facilities, such as ftrace, require the existence of debugfs. +config KERNEL_MIPS_FPU_EMULATOR + bool "Compile the kernel with MIPS FPU Emulator" + default y if TARGET_pistachio + depends on (mips || mipsel || mips64 || mips64el) + config KERNEL_ARM_PMU bool default n - depends on (arm || arm64) + depends on (arm || aarch64) + +config KERNEL_X86_VSYSCALL_EMULATION + bool "Enable vsyscall emulation" + default n + depends on x86_64 + help + This enables emulation of the legacy vsyscall page. Disabling + it is roughly equivalent to booting with vsyscall=none, except + that it will also disable the helpful warning if a program + tries to use a vsyscall. With this option set to N, offending + programs will just segfault, citing addresses of the form + 0xffffffffff600?00. + + This option is required by many programs built before 2013, and + care should be used even with newer programs if set to N. + + Disabling this option saves about 7K of kernel size and + possibly 4K of additional runtime pagetable memory. config KERNEL_PERF_EVENTS - bool + bool "Compile the kernel with performance events and counters" default n - select KERNEL_ARM_PMU if (arm || arm64) + select KERNEL_ARM_PMU if (arm || aarch64) config KERNEL_PROFILING bool "Compile the kernel with profiling enabled" @@ -60,6 +85,27 @@ config KERNEL_PROFILING Enable the extended profiling support mechanisms used by profilers such as OProfile. +config KERNEL_TASKSTATS + bool "Compile the kernel with task resource/io statistics and accounting" + default n + help + Enable the collection and publishing of task/io statistics and + accounting. Enable this option to enable i/o monitoring in system + monitors. + +if KERNEL_TASKSTATS + + config KERNEL_TASK_DELAY_ACCT + def_bool y + + config KERNEL_TASK_IO_ACCOUNTING + def_bool y + + config KERNEL_TASK_XACCT + def_bool y + +endif + config KERNEL_KALLSYMS bool "Compile the kernel with symbol table information" default y if !SMALL_FLASH @@ -107,7 +153,7 @@ config KERNEL_DEBUG_KERNEL config KERNEL_DEBUG_INFO bool "Compile the kernel with debug information" - default y + default y if !SMALL_FLASH select KERNEL_DEBUG_KERNEL help This will compile your kernel and modules with debug information. @@ -166,21 +212,21 @@ config KERNEL_KPROBE_EVENT bool default y if KERNEL_KPROBES +config KERNEL_KPROBE_EVENTS + bool + default y if KERNEL_KPROBES + config KERNEL_AIO bool "Compile the kernel with asynchronous IO support" - default n - -config KERNEL_DIRECT_IO - bool "Compile the kernel with direct IO support" - default n + default y if !SMALL_FLASH config KERNEL_FHANDLE bool "Compile the kernel with support for fhandle syscalls" - default n + default y if !SMALL_FLASH config KERNEL_FANOTIFY bool "Compile the kernel with modern file notification support" - default n + default y if !SMALL_FLASH config KERNEL_BLK_DEV_BSG bool "Compile the kernel with SCSI generic v4 support for any block device" @@ -190,13 +236,21 @@ config KERNEL_MAGIC_SYSRQ bool "Compile the kernel with SysRq support" default y +config KERNEL_DEBUG_PINCTRL + bool "Compile the kernel with pinctrl debugging" + select KERNEL_DEBUG_KERNEL + +config KERNEL_DEBUG_GPIO + bool "Compile the kernel with gpio debugging" + select KERNEL_DEBUG_KERNEL + config KERNEL_COREDUMP bool config KERNEL_ELF_CORE bool "Enable process core dump support" select KERNEL_COREDUMP - default y + default y if !SMALL_FLASH config KERNEL_PROVE_LOCKING bool "Enable kernel lock checking" @@ -227,6 +281,16 @@ config KERNEL_RELAY config KERNEL_KEXEC bool "Enable kexec support" +config KERNEL_PROC_VMCORE + bool + +config KERNEL_CRASH_DUMP + depends on i386 || x86_64 || arm || armeb + select KERNEL_KEXEC + select KERNEL_PROC_VMCORE + bool "Enable support for kexec crashdump" + default y + config USE_RFKILL bool "Enable rfkill support" default RFKILL_SUPPORT @@ -240,7 +304,7 @@ config KERNEL_DEVTMPFS default n help devtmpfs is a simple, kernel-managed /dev filesystem. The kernel creates - devices nodes for all registered devices ti simplify boot, but leaves more + devices nodes for all registered devices to simplify boot, but leaves more complex tasks to userspace (e.g. udev). if KERNEL_DEVTMPFS @@ -276,7 +340,7 @@ config KERNEL_ENCRYPTED_KEYS config KERNEL_CGROUPS bool "Enable kernel cgroups" - default n + default y if !SMALL_FLASH if KERNEL_CGROUPS @@ -315,7 +379,7 @@ if KERNEL_CGROUPS config KERNEL_CPUSETS bool "Cpuset support" - default n + default y if !SMALL_FLASH help This option will let you create and manage CPUSETs which allow dynamically partitioning a system into sets of CPUs and @@ -329,14 +393,14 @@ if KERNEL_CGROUPS config KERNEL_CGROUP_CPUACCT bool "Simple CPU accounting cgroup subsystem" - default n + default y if !SMALL_FLASH help Provides a simple Resource Controller for monitoring the total CPU consumed by the tasks in a cgroup. config KERNEL_RESOURCE_COUNTERS bool "Resource counters" - default n + default y if !SMALL_FLASH help This option enables controller independent resource accounting infrastructure that works with cgroups. @@ -347,7 +411,7 @@ if KERNEL_CGROUPS config KERNEL_MEMCG bool "Memory Resource Controller for Control Groups" - default n + default y if !SMALL_FLASH depends on KERNEL_RESOURCE_COUNTERS || !LINUX_3_18 help Provides a memory resource controller that manages both anonymous @@ -405,7 +469,7 @@ if KERNEL_CGROUPS config KERNEL_MEMCG_KMEM bool "Memory Resource Controller Kernel Memory accounting (EXPERIMENTAL)" - default n + default y if !SMALL_FLASH depends on KERNEL_MEMCG help The Kernel Memory extension for Memory Resource Controller can limit @@ -426,7 +490,7 @@ if KERNEL_CGROUPS menuconfig KERNEL_CGROUP_SCHED bool "Group CPU scheduler" - default n + default y if !SMALL_FLASH help This feature lets CPU scheduler recognize task groups and control CPU bandwidth allocation to such task groups. It uses cgroups to group @@ -436,7 +500,7 @@ if KERNEL_CGROUPS config KERNEL_FAIR_GROUP_SCHED bool "Group scheduling for SCHED_OTHER" - default n + default y if !SMALL_FLASH config KERNEL_CFS_BANDWIDTH bool "CPU bandwidth provisioning for FAIR_GROUP_SCHED" @@ -451,7 +515,7 @@ if KERNEL_CGROUPS config KERNEL_RT_GROUP_SCHED bool "Group scheduling for SCHED_RR/FIFO" - default n + default y if !SMALL_FLASH help This feature lets you explicitly allocate real CPU bandwidth to task groups. If enabled, it will also make it impossible to @@ -479,6 +543,20 @@ if KERNEL_CGROUPS CONFIG_CFQ_GROUP_IOSCHED=y; for enabling throttling policy, set CONFIG_BLK_DEV_THROTTLING=y. + if KERNEL_BLK_CGROUP + + config KERNEL_CFQ_GROUP_IOSCHED + bool "Proportional weight of disk bandwidth in CFQ" + + config KERNEL_BLK_DEV_THROTTLING + bool "Enable throttling policy" + default y if TARGET_brcm2708 + + config KERNEL_BLK_DEV_THROTTLING_LOW + bool "Block throttling .low limit interface support (EXPERIMENTAL)" + depends on KERNEL_BLK_DEV_THROTTLING + endif + config KERNEL_DEBUG_BLK_CGROUP bool "Enable Block IO controller debugging" default n @@ -503,7 +581,7 @@ endif config KERNEL_NAMESPACES bool "Enable kernel namespaces" - default n + default y if !SMALL_FLASH if KERNEL_NAMESPACES @@ -545,54 +623,54 @@ if KERNEL_NAMESPACES endif -# -# LXC related symbols -# - -config KERNEL_LXC_MISC - bool "Enable miscellaneous LXC related options" - default n - -if KERNEL_LXC_MISC - - config KERNEL_DEVPTS_MULTIPLE_INSTANCES - bool "Support multiple instances of devpts" - default y - help - Enable support for multiple instances of devpts filesystem. - If you want to have isolated PTY namespaces (eg: in containers), - say Y here. Otherwise, say N. If enabled, each mount of devpts - filesystem with the '-o newinstance' option will create an - independent PTY namespace. - - config KERNEL_POSIX_MQUEUE - bool "POSIX Message Queues" - default y - help - POSIX variant of message queues is a part of IPC. In POSIX message - queues every message has a priority which decides about succession - of receiving it by a process. If you want to compile and run - programs written e.g. for Solaris with use of its POSIX message - queues (functions mq_*) say Y here. +config KERNEL_DEVPTS_MULTIPLE_INSTANCES + bool "Support multiple instances of devpts" + default y if !SMALL_FLASH + help + Enable support for multiple instances of devpts filesystem. + If you want to have isolated PTY namespaces (eg: in containers), + say Y here. Otherwise, say N. If enabled, each mount of devpts + filesystem with the '-o newinstance' option will create an + independent PTY namespace. + +config KERNEL_POSIX_MQUEUE + bool "POSIX Message Queues" + default y if !SMALL_FLASH + help + POSIX variant of message queues is a part of IPC. In POSIX message + queues every message has a priority which decides about succession + of receiving it by a process. If you want to compile and run + programs written e.g. for Solaris with use of its POSIX message + queues (functions mq_*) say Y here. - POSIX message queues are visible as a filesystem called 'mqueue' - and can be mounted somewhere if you want to do filesystem - operations on message queues. + POSIX message queues are visible as a filesystem called 'mqueue' + and can be mounted somewhere if you want to do filesystem + operations on message queues. -endif config KERNEL_SECCOMP_FILTER bool - default n + default y if !SMALL_FLASH config KERNEL_SECCOMP bool "Enable seccomp support" depends on !(TARGET_uml) select KERNEL_SECCOMP_FILTER - default n + default y if !SMALL_FLASH help Build kernel with support for seccomp. +# +# IPv4 configuration +# + +config KERNEL_IP_MROUTE + bool "Enable IPv4 multicast routing" + default y + help + Multicast routing requires a multicast routing daemon in + addition to kernel support. + # # IPv6 configuration # @@ -609,7 +687,11 @@ if KERNEL_IPV6 def_bool y config KERNEL_IPV6_MROUTE - def_bool y + bool "Enable IPv6 multicast routing" + default y + help + Multicast routing requires a multicast routing daemon in + addition to kernel support. config KERNEL_IPV6_PIMSM_V2 def_bool n @@ -700,7 +782,7 @@ menu "Filesystem ACL and attr support options" select KERNEL_FS_POSIX_ACL default y if USE_FS_ACL_ATTR - config KERNEL_HFSPLUG_FS_POSIX_ACL + config KERNEL_HFSPLUS_FS_POSIX_ACL bool "Enable POSIX ACL for HFS+ Filesystems" select KERNEL_FS_POSIX_ACL default y if USE_FS_ACL_ATTR @@ -737,3 +819,44 @@ menu "Filesystem ACL and attr support options" default y if USE_FS_ACL_ATTR endmenu + +config KERNEL_DEVMEM + bool "/dev/mem virtual device support" + help + Say Y here if you want to support the /dev/mem device. + The /dev/mem device is used to access areas of physical + memory. + +config KERNEL_DEVKMEM + bool "/dev/kmem virtual device support" + help + Say Y here if you want to support the /dev/kmem device. The + /dev/kmem device is rarely used, but can be used for certain + kind of kernel debugging operations. + +config KERNEL_SQUASHFS_FRAGMENT_CACHE_SIZE + int "Number of squashfs fragments cached" + default 2 if (SMALL_FLASH && !LOW_MEMORY_FOOTPRINT) + default 3 + +# +# compile optimiziation setting +# +choice + prompt "Compiler optimization level" + default KERNEL_CC_OPTIMIZE_FOR_SIZE if SMALL_FLASH + +config KERNEL_CC_OPTIMIZE_FOR_PERFORMANCE + bool "Optimize for performance" + help + This is the default optimization level for the kernel, building + with the "-O2" compiler flag for best performance and most + helpful compile-time warnings. + +config KERNEL_CC_OPTIMIZE_FOR_SIZE + bool "Optimize for size" + help + Enabling this option will pass "-Os" instead of "-O2" to + your compiler resulting in a smaller kernel. + +endchoice