Config.in

   1 # Copyright (C) 2006-2012 OpenWrt.org
   2 #
   3 # This is free software, licensed under the GNU General Public License v2.
   4 # See /LICENSE for more information.
   5 #
   6
   7 mainmenu "OpenWrt Configuration"
   8
   9 config MODULES
  10         bool
  11         default y
  12
  13 config HAVE_DOT_CONFIG
  14         bool
  15         default y
  16
  17 source "target/Config.in"
  18
  19 menu "Target Images"
  20
  21         menuconfig TARGET_ROOTFS_INITRAMFS
  22                 bool "ramdisk"
  23                 default y if USES_INITRAMFS
  24                 help
  25                   Embed the rootfs into the kernel (initramfs)
  26
  27                 choice
  28                         prompt "Compression"
  29                         default TARGET_INITRAMFS_COMPRESSION_LZMA if TARGET_ar71xx
  30                         default TARGET_INITRAMFS_COMPRESSION_LZMA if TARGET_ramips
  31                         default TARGET_INITRAMFS_COMPRESSION_NONE
  32                         depends on TARGET_ROOTFS_INITRAMFS
  33                         help
  34                           Select ramdisk compression.
  35
  36                         config TARGET_INITRAMFS_COMPRESSION_NONE
  37                                 bool "none"
  38
  39                         config TARGET_INITRAMFS_COMPRESSION_GZIP
  40                                 bool "gzip"
  41
  42                         config TARGET_INITRAMFS_COMPRESSION_BZIP2
  43                                 bool "bzip2"
  44
  45                         config TARGET_INITRAMFS_COMPRESSION_LZMA
  46                                 bool "lzma"
  47
  48                         config TARGET_INITRAMFS_COMPRESSION_LZO
  49                                 bool "lzo"
  50
  51                         config TARGET_INITRAMFS_COMPRESSION_XZ
  52                                 bool "xz"
  53                 endchoice
  54
  55                 config EXTERNAL_CPIO
  56                         string
  57                         prompt "Use external cpio" if TARGET_ROOTFS_INITRAMFS
  58                         default ""
  59                         help
  60                           Kernel uses specified external cpio as INITRAMFS_SOURCE
  61
  62         comment "Root filesystem archives"
  63
  64         config TARGET_ROOTFS_CPIOGZ
  65                 bool "cpio.gz"
  66                 default y if USES_CPIOGZ
  67                 help
  68                   Build a compressed cpio archive of the the root filesystem
  69
  70         config TARGET_ROOTFS_TARGZ
  71                 bool "tar.gz"
  72                 default y if USES_TARGZ
  73                 help
  74                   Build a compressed tar archive of the the root filesystem
  75
  76         comment "Root filesystem images"
  77
  78         config TARGET_ROOTFS_EXT4FS
  79                 bool "ext4"
  80                 default y if USES_EXT4
  81                 help
  82                   Ext4 file system with some free space for uml images
  83
  84         config TARGET_ROOTFS_ISO
  85                 bool "iso"
  86                 default n
  87                 depends on TARGET_x86_generic
  88                 help
  89                   Create some bootable ISO image
  90
  91         config TARGET_ROOTFS_JFFS2
  92                 bool "jffs2"
  93                 default y if USES_JFFS2
  94                 help
  95                   Build a jffs2 root filesystem
  96
  97         config TARGET_ROOTFS_JFFS2_NAND
  98                 bool "jffs2 for NAND"
  99                 default y if USES_JFFS2_NAND
 100                 depends on USES_JFFS2_NAND
 101                 help
 102                   Build a jffs2 root filesystem for NAND flash
 103
 104         config TARGET_ROOTFS_SQUASHFS
 105                 bool "squashfs"
 106                 default y if USES_SQUASHFS
 107                 help
 108                   Build a squashfs-lzma root filesystem
 109
 110         config TARGET_ROOTFS_UBIFS
 111                 bool "ubifs"
 112                 default y if USES_UBIFS
 113                 depends on USES_UBIFS
 114                 help
 115                   Build a ubifs root filesystem
 116
 117         comment "Image Options"
 118
 119         source "target/linux/*/image/Config.in"
 120
 121         config TARGET_ROOTFS_PARTSIZE
 122                 int "Root filesystem partition size (in MB)"
 123                 depends on X86_GRUB_IMAGES || TARGET_ROOTFS_EXT4FS || TARGET_rb532
 124                 default 48
 125                 help
 126                   Allows you to change the root filesystem partition size
 127
 128         config TARGET_ROOTFS_MAXINODE
 129                 int "Maximum number of inodes in root filesystem"
 130                 depends on TARGET_ROOTFS_EXT4FS
 131                 default 6000
 132                 help
 133                   Allows you to change the maximum number of inodes in the root filesystem
 134
 135         config TARGET_ROOTFS_RESERVED_PCT
 136                 int "Percentage of reserved blocks in root filesystem"
 137                 depends on TARGET_ROOTFS_EXT4FS
 138                 default 0
 139                 help
 140                   Allows you to change the percentage of reserved blocks in the root filesystem
 141
 142         config TARGET_ROOTFS_INCLUDE_KERNEL
 143                 bool "include kernel in rootfs"
 144                 depends TARGET_ROOTFS_UBIFS || TARGET_ROOTFS_EXT4FS
 145                 default n if USES_UBIFS
 146                 help
 147                   Include the kernel image in the rootfs
 148
 149         config TARGET_ROOTFS_INCLUDE_DTB
 150                 bool "include dtb in rootfs"
 151                 depends TARGET_ROOTFS_UBIFS || TARGET_ROOTFS_EXT4FS
 152                 default n if USES_UBIFS
 153                 help
 154                   Include the device tree blob file in the rootfs
 155
 156 endmenu
 157
 158 menu "Global build settings"
 159
 160         config ALL
 161                 bool "Select all packages by default"
 162                 default n
 163
 164         comment "General build options"
 165
 166         config DISPLAY_SUPPORT
 167                 bool "Show packages that require graphics support (local or remote)"
 168                 default n
 169
 170         config BUILD_PATENTED
 171                 default y
 172                 bool "Compile with support for patented functionality"
 173                 help
 174                   When this option is disabled, software which provides patented functionality will not be built.
 175                   In case software provides optional support for patented functionality,
 176                   this optional support will get disabled for this package.
 177
 178         config BUILD_NLS
 179                 default n
 180                 bool "Compile with full language support"
 181                 help
 182                   When this option is enabled, packages are built with the full versions of iconv and GNU gettext
 183                   instead of the default OpenWrt stubs. If uClibc is used, it is also built with locale support.
 184
 185         config BUILD_STATIC_TOOLS
 186                 default n
 187                 bool "Attempt to link host utilities statically"
 188                 help
 189                   Linking host utilities like sed or firmware-utils statically increases the portability of the
 190                   generated ImageBuilder and SDK tarballs, however it may fail on some Linux distributions.
 191
 192         config SHADOW_PASSWORDS
 193                 bool
 194                 prompt "Enable shadow password support"
 195                 default y
 196                 help
 197                   Enable shadow password support.
 198
 199         config CLEAN_IPKG
 200                 bool
 201                 prompt "Remove ipkg/opkg status data files in final images"
 202                 default n
 203                 help
 204                   This removes all ipkg/opkg status data files from the target directory before building the root fs
 205
 206         config COLLECT_KERNEL_DEBUG
 207                 bool
 208                 prompt "Collect kernel debug information"
 209                 select KERNEL_DEBUG_INFO
 210                 default n
 211                 help
 212                   This collects debugging symbols from the kernel and all compiled modules.
 213                   Useful for release builds, so that kernel issues can be debugged offline later.
 214
 215         comment "Kernel build options"
 216
 217         config KERNEL_DEBUG_FS
 218                 bool "Compile the kernel with Debug FileSystem enabled"
 219                 default y
 220                 help
 221                   debugfs is a virtual file system that kernel developers use to put
 222                   debugging files into. Enable this option to be able to read and
 223                   write to these files.
 224
 225         config KERNEL_PERF_EVENTS
 226                 bool
 227                 default n
 228
 229         config KERNEL_PROFILING
 230                 bool "Compile the kernel with profiling enabled"
 231                 default n
 232                 select KERNEL_PERF_EVENTS
 233                 help
 234                   Enable the extended profiling support mechanisms used by profilers such
 235                   as OProfile.
 236
 237         config KERNEL_KALLSYMS
 238                 bool "Compile the kernel with symbol table information"
 239                 default y
 240                 help
 241                   This will give you more information in stack traces from kernel oopses
 242
 243         config KERNEL_FTRACE
 244                 bool "Compile the kernel with tracing support"
 245                 default n
 246
 247         config KERNEL_FTRACE_SYSCALLS
 248                 bool "Trace system calls"
 249                 depends on KERNEL_FTRACE
 250                 default n
 251
 252         config KERNEL_ENABLE_DEFAULT_TRACERS
 253                 bool "Trace process context switches and events"
 254                 depends on KERNEL_FTRACE
 255                 default n
 256
 257         config KERNEL_DEBUG_KERNEL
 258                 bool
 259                 default n
 260
 261         config KERNEL_DEBUG_INFO
 262                 bool "Compile the kernel with debug information"
 263                 default y
 264                 select KERNEL_DEBUG_KERNEL
 265                 help
 266                   This will compile your kernel and modules with debug information.
 267
 268         config KERNEL_DEBUG_LL_UART_NONE
 269                 bool
 270                 default n
 271                 depends on arm
 272
 273         config KERNEL_DEBUG_LL
 274                 bool
 275                 default n
 276                 depends on arm
 277                 select KERNEL_DEBUG_LL_UART_NONE
 278                 help
 279                   ARM low level debugging
 280
 281         config KERNEL_EARLY_PRINTK
 282                 bool "Compile the kernel with early printk"
 283                 default n
 284                 depends on arm
 285                 select KERNEL_DEBUG_KERNEL
 286                 select KERNEL_DEBUG_LL if arm
 287                 help
 288                   Compile the kernel with early printk support.
 289                   This is only useful for debugging purposes to send messages
 290                   over the serial console in early boot.
 291                   Enable this to debug early boot problems.
 292
 293         config KERNEL_AIO
 294                 bool "Compile the kernel with asynchronous IO support"
 295                 default n
 296
 297         config KERNEL_DIRECT_IO
 298                 bool "Compile the kernel with direct IO support"
 299                 default n
 300
 301         config KERNEL_MAGIC_SYSRQ
 302                 bool "Compile the kernel with SysRq support"
 303                 default y
 304
 305         config KERNEL_COREDUMP
 306                 bool
 307
 308         config KERNEL_ELF_CORE
 309                 bool "Enable process core dump support"
 310                 select KERNEL_COREDUMP
 311                 default y
 312
 313         config KERNEL_PROVE_LOCKING
 314                 bool "Enable kernel lock checking"
 315                 select KERNEL_DEBUG_KERNEL
 316                 default n
 317
 318         config KERNEL_PRINTK_TIME
 319                 bool "Enable printk timestamps"
 320                 default y
 321
 322         config KERNEL_RELAY
 323                 bool
 324
 325         config KERNEL_KEXEC
 326                 bool "Enable kexec support"
 327
 328         #
 329         # CGROUP support symbols
 330         #
 331
 332         config KERNEL_CGROUPS
 333                 bool "Enable kernel cgroups"
 334                 default n
 335
 336         if KERNEL_CGROUPS
 337
 338                 config KERNEL_CGROUP_DEBUG
 339                         bool "Example debug cgroup subsystem"
 340                         default n
 341                         help
 342                           This option enables a simple cgroup subsystem that
 343                           exports useful debugging information about the cgroups
 344                           framework.
 345
 346                 config KERNEL_FREEZER
 347                         bool
 348                         default y if KERNEL_CGROUP_FREEZER
 349
 350                 config KERNEL_CGROUP_FREEZER
 351                         bool "Freezer cgroup subsystem"
 352                         default n
 353                         help
 354                           Provides a way to freeze and unfreeze all tasks in a
 355                           cgroup.
 356
 357                 config KERNEL_CGROUP_DEVICE
 358                         bool "Device controller for cgroups"
 359                         default y
 360                         help
 361                           Provides a cgroup implementing whitelists for devices which
 362                           a process in the cgroup can mknod or open.
 363
 364                 config KERNEL_CPUSETS
 365                         bool "Cpuset support"
 366                         default n
 367                         help
 368                           This option will let you create and manage CPUSETs which
 369                           allow dynamically partitioning a system into sets of CPUs and
 370                           Memory Nodes and assigning tasks to run only within those sets.
 371                           This is primarily useful on large SMP or NUMA systems.
 372
 373                 config KERNEL_PROC_PID_CPUSET
 374                         bool "Include legacy /proc/<pid>/cpuset file"
 375                         default n
 376                         depends on KERNEL_CPUSETS
 377
 378                 config KERNEL_CGROUP_CPUACCT
 379                         bool "Simple CPU accounting cgroup subsystem"
 380                         default n
 381                         help
 382                           Provides a simple Resource Controller for monitoring the
 383                           total CPU consumed by the tasks in a cgroup.
 384
 385                 config KERNEL_RESOURCE_COUNTERS
 386                         bool "Resource counters"
 387                         default n
 388                         help
 389                           This option enables controller independent resource accounting
 390                           infrastructure that works with cgroups.
 391
 392                 config KERNEL_MM_OWNER
 393                         bool
 394                         default y if KERNEL_MEMCG
 395
 396                 config KERNEL_MEMCG
 397                         bool "Memory Resource Controller for Control Groups"
 398                         default n
 399                         depends on KERNEL_RESOURCE_COUNTERS
 400                         help
 401                           Provides a memory resource controller that manages both anonymous
 402                           memory and page cache. (See Documentation/cgroups/memory.txt)
 403
 404                           Note that setting this option increases fixed memory overhead
 405                           associated with each page of memory in the system. By this,
 406                           20(40)bytes/PAGE_SIZE on 32(64)bit system will be occupied by memory
 407                           usage tracking struct at boot. Total amount of this is printed out
 408                           at boot.
 409
 410                           Only enable when you're ok with these trade offs and really
 411                           sure you need the memory resource controller. Even when you enable
 412                           this, you can set "cgroup_disable=memory" at your boot option to
 413                           disable memory resource controller and you can avoid overheads.
 414                           (and lose benefits of memory resource controller)
 415
 416                           This config option also selects MM_OWNER config option, which
 417                           could in turn add some fork/exit overhead.
 418
 419                 config KERNEL_MEMCG_SWAP
 420                         bool "Memory Resource Controller Swap Extension"
 421                         default n
 422                         depends on KERNEL_MEMCG
 423                         help
 424                           Add swap management feature to memory resource controller. When you
 425                           enable this, you can limit mem+swap usage per cgroup. In other words,
 426                           when you disable this, memory resource controller has no cares to
 427                           usage of swap...a process can exhaust all of the swap. This extension
 428                           is useful when you want to avoid exhaustion swap but this itself
 429                           adds more overheads and consumes memory for remembering information.
 430                           Especially if you use 32bit system or small memory system, please
 431                           be careful about enabling this. When memory resource controller
 432                           is disabled by boot option, this will be automatically disabled and
 433                           there will be no overhead from this. Even when you set this config=y,
 434                           if boot option "swapaccount=0" is set, swap will not be accounted.
 435                           Now, memory usage of swap_cgroup is 2 bytes per entry. If swap page
 436                           size is 4096bytes, 512k per 1Gbytes of swap.
 437
 438                 config KERNEL_MEMCG_SWAP_ENABLED
 439                         bool "Memory Resource Controller Swap Extension enabled by default"
 440                         default n
 441                         depends on KERNEL_MEMCG_SWAP
 442                         help
 443                           Memory Resource Controller Swap Extension comes with its price in
 444                           a bigger memory consumption. General purpose distribution kernels
 445                           which want to enable the feature but keep it disabled by default
 446                           and let the user enable it by swapaccount boot command line
 447                           parameter should have this option unselected.
 448                           For those who want to have the feature enabled by default should
 449                           select this option (if, for some reason, they need to disable it
 450                           then swapaccount=0 does the trick).
 451
 452
 453                 config KERNEL_MEMCG_KMEM
 454                         bool "Memory Resource Controller Kernel Memory accounting (EXPERIMENTAL)"
 455                         default n
 456                         depends on KERNEL_MEMCG
 457                         help
 458                           The Kernel Memory extension for Memory Resource Controller can limit
 459                           the amount of memory used by kernel objects in the system. Those are
 460                           fundamentally different from the entities handled by the standard
 461                           Memory Controller, which are page-based, and can be swapped. Users of
 462                           the kmem extension can use it to guarantee that no group of processes
 463                           will ever exhaust kernel resources alone.
 464
 465                 config KERNEL_CGROUP_PERF
 466                         bool "Enable perf_event per-cpu per-container group (cgroup) monitoring"
 467                         default n
 468                         select KERNEL_PERF_EVENTS
 469                         help
 470                           This option extends the per-cpu mode to restrict monitoring to
 471                           threads which belong to the cgroup specified and run on the
 472                           designated cpu.
 473
 474                 menuconfig KERNEL_CGROUP_SCHED
 475                         bool "Group CPU scheduler"
 476                         default n
 477                         help
 478                           This feature lets CPU scheduler recognize task groups and control CPU
 479                           bandwidth allocation to such task groups. It uses cgroups to group
 480                           tasks.
 481
 482                 if KERNEL_CGROUP_SCHED
 483
 484                         config KERNEL_FAIR_GROUP_SCHED
 485                                 bool "Group scheduling for SCHED_OTHER"
 486                                 default n
 487
 488                         config KERNEL_CFS_BANDWIDTH
 489                                 bool "CPU bandwidth provisioning for FAIR_GROUP_SCHED"
 490                                 default n
 491                                 depends on KERNEL_FAIR_GROUP_SCHED
 492                                 help
 493                                   This option allows users to define CPU bandwidth rates (limits) for
 494                                   tasks running within the fair group scheduler.  Groups with no limit
 495                                   set are considered to be unconstrained and will run with no
 496                                   restriction.
 497                                   See tip/Documentation/scheduler/sched-bwc.txt for more information.
 498
 499                         config KERNEL_RT_GROUP_SCHED
 500                                 bool "Group scheduling for SCHED_RR/FIFO"
 501                                 default n
 502                                 help
 503                                   This feature lets you explicitly allocate real CPU bandwidth
 504                                   to task groups. If enabled, it will also make it impossible to
 505                                   schedule realtime tasks for non-root users until you allocate
 506                                   realtime bandwidth for them.
 507
 508                 endif
 509
 510                 config KERNEL_BLK_CGROUP
 511                         bool "Block IO controller"
 512                         default y
 513                         help
 514                           Generic block IO controller cgroup interface. This is the common
 515                           cgroup interface which should be used by various IO controlling
 516                           policies.
 517
 518                           Currently, CFQ IO scheduler uses it to recognize task groups and
 519                           control disk bandwidth allocation (proportional time slice allocation)
 520                           to such task groups. It is also used by bio throttling logic in
 521                           block layer to implement upper limit in IO rates on a device.
 522
 523                           This option only enables generic Block IO controller infrastructure.
 524                           One needs to also enable actual IO controlling logic/policy. For
 525                           enabling proportional weight division of disk bandwidth in CFQ, set
 526                           CONFIG_CFQ_GROUP_IOSCHED=y; for enabling throttling policy, set
 527                           CONFIG_BLK_DEV_THROTTLING=y.
 528
 529                 config KERNEL_DEBUG_BLK_CGROUP
 530                         bool "Enable Block IO controller debugging"
 531                         default n
 532                         depends on KERNEL_BLK_CGROUP
 533                         help
 534                           Enable some debugging help. Currently it exports additional stat
 535                           files in a cgroup which can be useful for debugging.
 536
 537                 config KERNEL_NET_CLS_CGROUP
 538                         bool "Control Group Classifier"
 539                         default y
 540
 541                 config KERNEL_NETPRIO_CGROUP
 542                         bool "Network priority cgroup"
 543                         default y
 544
 545         endif
 546
 547         #
 548         # Namespace support symbols
 549         #
 550
 551         config KERNEL_NAMESPACES
 552                 bool "Enable kernel namespaces"
 553                 default n
 554
 555         if KERNEL_NAMESPACES
 556
 557                 config KERNEL_UTS_NS
 558                         bool "UTS namespace"
 559                         default y
 560                         help
 561                           In this namespace tasks see different info provided
 562                           with the uname() system call
 563
 564                 config KERNEL_IPC_NS
 565                         bool "IPC namespace"
 566                         default y
 567                         help
 568                           In this namespace tasks work with IPC ids which correspond to
 569                           different IPC objects in different namespaces.
 570
 571                 config KERNEL_USER_NS
 572                         bool "User namespace (EXPERIMENTAL)"
 573                         default y
 574                         help
 575                           This allows containers, i.e. vservers, to use user namespaces
 576                           to provide different user info for different servers.
 577
 578                 config KERNEL_PID_NS
 579                         bool "PID Namespaces"
 580                         default y
 581                         help
 582                           Support process id namespaces. This allows having multiple
 583                           processes with the same pid as long as they are in different
 584                           pid namespaces. This is a building block of containers.
 585
 586                 config KERNEL_NET_NS
 587                         bool "Network namespace"
 588                         default y
 589                         help
 590                           Allow user space to create what appear to be multiple instances
 591                           of the network stack.
 592
 593         endif
 594
 595         #
 596         # LXC related symbols
 597         #
 598
 599         config KERNEL_LXC_MISC
 600                 bool "Enable miscellaneous LXC related options"
 601                 default n
 602
 603         if KERNEL_LXC_MISC
 604
 605                 config KERNEL_DEVPTS_MULTIPLE_INSTANCES
 606                         bool "Support multiple instances of devpts"
 607                         default y
 608                         help
 609                           Enable support for multiple instances of devpts filesystem.
 610                           If you want to have isolated PTY namespaces (eg: in containers),
 611                           say Y here. Otherwise, say N. If enabled, each mount of devpts
 612                           filesystem with the '-o newinstance' option will create an
 613                           independent PTY namespace.
 614
 615                 config KERNEL_POSIX_MQUEUE
 616                         bool "POSIX Message Queues"
 617                         default n
 618                         help
 619                           POSIX variant of message queues is a part of IPC. In POSIX message
 620                           queues every message has a priority which decides about succession
 621                           of receiving it by a process. If you want to compile and run
 622                           programs written e.g. for Solaris with use of its POSIX message
 623                           queues (functions mq_*) say Y here.
 624
 625                           POSIX message queues are visible as a filesystem called 'mqueue'
 626                           and can be mounted somewhere if you want to do filesystem
 627                           operations on message queues.
 628
 629         endif
 630
 631         comment "Package build options"
 632
 633         config DEBUG
 634                 bool
 635                 prompt "Compile packages with debugging info"
 636                 default n
 637                 help
 638                   Adds -g3 to the CFLAGS
 639
 640         config IPV6
 641                 bool
 642                 prompt "Enable IPv6 support in packages"
 643                 default y
 644                 help
 645                   Enable IPV6 support in packages (passes --enable-ipv6 to configure scripts).
 646
 647         config PKG_BUILD_PARALLEL
 648                 bool
 649                 prompt "Compile certain packages parallelized"
 650                 default y
 651                 help
 652                   This adds a -jX option to certain packages that are known to
 653                   behave well for parallel build. By default the package make processes
 654                   use the main jobserver, in which case this option only takes effect
 655                   when you add -jX to the make command.
 656
 657                   If you are unsure, select N.
 658
 659         config PKG_BUILD_USE_JOBSERVER
 660                 bool
 661                 prompt "Use top-level make jobserver for packages"
 662                 depends on PKG_BUILD_PARALLEL
 663                 default y
 664                 help
 665                   This passes the main make process jobserver fds to package builds,
 666                   enabling full parallelization across different packages
 667
 668                   Note that disabling this may overcommit CPU resources depending on the
 669                   -j level of the main make process, the number of package
 670                   submake jobs selected below and the number of actual CPUs present.
 671                   Example: If the main make is passed a -j4 and the submake -j
 672                   is also set to 4, we may end up with 16 parallel make processes
 673                   in the worst case.
 674
 675
 676         config PKG_BUILD_JOBS
 677                 int
 678                 prompt "Number of package submake jobs (2-512)"
 679                 range 2 512
 680                 default 2
 681                 depends on PKG_BUILD_PARALLEL && !PKG_BUILD_USE_JOBSERVER
 682                 help
 683                   The number of jobs (-jX) to pass to packages submake.
 684
 685         config PKG_DEFAULT_PARALLEL
 686                 bool
 687                 prompt "Parallelize the default package build rule (May break build)"
 688                 depends on PKG_BUILD_PARALLEL
 689                 depends on BROKEN
 690                 default n
 691                 help
 692                   Always set the default package build rules to parallel build.
 693
 694                   WARNING: This may break build or kill your cat, as it builds
 695                   packages with multiple jobs that are probably not tested in
 696                   a parallel build environment.
 697
 698                   Only say Y, if you don't mind fixing broken packages.
 699                   Before reporting build bugs, set this to N and re-run the build.
 700
 701         comment "Stripping options"
 702
 703         choice
 704                 prompt "Binary stripping method"
 705                 default USE_STRIP   if EXTERNAL_TOOLCHAIN
 706                 default USE_STRIP   if USE_GLIBC || USE_EGLIBC || USE_MUSL
 707                 default USE_SSTRIP
 708                 help
 709                   Select the binary stripping method you wish to use.
 710
 711                 config NO_STRIP
 712                         bool "none"
 713                         help
 714                           This will install unstripped binaries (useful for native compiling/debugging)
 715
 716                 config USE_STRIP
 717                         bool "strip"
 718                         help
 719                           This will install binaries stripped using strip from binutils
 720
 721
 722                 config USE_SSTRIP
 723                         bool "sstrip"
 724                         depends on !DEBUG
 725                         depends on !USE_GLIBC
 726                         depends on !USE_EGLIBC
 727                         help
 728                           This will install binaries stripped using sstrip
 729         endchoice
 730
 731         config STRIP_ARGS
 732                 string
 733                 prompt "Strip arguments"
 734                 depends on USE_STRIP
 735                 default "--strip-unneeded --remove-section=.comment --remove-section=.note" if DEBUG
 736                 default "--strip-all"
 737                 help
 738                   Specifies arguments passed to the strip command when stripping binaries
 739
 740         config STRIP_KERNEL_EXPORTS
 741                 bool "Strip unnecessary exports from the kernel image"
 742                 help
 743                   Reduces kernel size by stripping unused kernel exports from the kernel image
 744                   Note that this might make the kernel incompatible with any kernel modules that
 745                   were not selected at the time the kernel image was created
 746
 747         config USE_MKLIBS
 748                 bool "Strip unnecessary functions from libraries"
 749                 help
 750                   Reduces libraries to only those functions that are necessary for using all
 751                   selected packages (including those selected as <M>)
 752                   Note that this will make the system libraries incompatible with most of the packages
 753                   that are not selected during the build process
 754
 755         choice
 756                 prompt "Preferred standard C++ library"
 757                 default USE_LIBSTDCXX if USE_EGLIBC
 758                 default USE_UCLIBCXX
 759                 help
 760                   Select the preferred standard C++ library for all packages that support this.
 761
 762                 config USE_UCLIBCXX
 763                         bool "uClibc++"
 764
 765                 config USE_LIBSTDCXX
 766                         bool "libstdc++"
 767         endchoice
 768
 769 endmenu
 770
 771 menuconfig DEVEL
 772         bool "Advanced configuration options (for developers)"
 773         default n
 774
 775         config BROKEN
 776                 bool "Show broken platforms / packages" if DEVEL
 777                 default n
 778
 779         config DOWNLOAD_FOLDER
 780                 string "Download folder" if DEVEL
 781                 default ""
 782
 783         config LOCALMIRROR
 784                 string "Local mirror for source packages" if DEVEL
 785                 default ""
 786
 787         config AUTOREBUILD
 788                 bool "Automatic rebuild of packages" if DEVEL
 789                 default y
 790                 help
 791                   Automatically rebuild packages when their files change
 792
 793         config BUILD_SUFFIX
 794                 string "Build suffix to append to the BUILD_DIR variable" if DEVEL
 795                 default ""
 796                 help
 797                   Build suffix to append to the BUILD_DIR variable, i.e: build_dir_suffix
 798
 799         config TARGET_ROOTFS_DIR
 800                 string "Override the default TARGET_ROOTFS_DIR variable" if DEVEL
 801                 default ""
 802                 help
 803                   Override the default TARGET_ROOTFS_DIR variable content $(BUILD_DIR) with custom path.
 804                   Use this option to re-define the location of the target root file system directory.
 805
 806         config CCACHE
 807                 bool "Use ccache" if DEVEL
 808                 default n
 809                 help
 810                   Compiler cache; see http://ccache.samba.org/
 811
 812         config EXTERNAL_KERNEL_TREE
 813                 string "Use external kernel tree" if DEVEL
 814                 default ""
 815
 816         config KERNEL_GIT_CLONE_URI
 817                 string "Enter git repository to clone" if DEVEL
 818                 default ""
 819                 help
 820                   Enter the full git repository path i.e.:
 821                   git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
 822                   This will create a git clone of the kernel in your build
 823                   directory.
 824
 825         config KERNEL_GIT_LOCAL_REPOSITORY
 826                 string "Enter path to local reference repository" if DEVEL
 827                 default ""
 828                 help
 829                   Enter a full pathname to a local reference git repository.
 830                   In this instance, the --refererence option of git clone will
 831                   be used thus creating a quick local clone of your repo.
 832
 833         config BUILD_LOG
 834                 bool "Enable log files during build process" if DEVEL
 835                 help
 836                   If enabled log files will be written to the ./log directory
 837
 838         config SRC_TREE_OVERRIDE
 839                 bool "Enable package source tree override" if DEVEL
 840                 help
 841                   If enabled, you can force a package to use a git tree as source
 842                   code instead of the normal tarball. Create a symlink 'git-src'
 843                   in the package directory, pointing to the .git tree that you want
 844                   to pull the source code from
 845
 846 menuconfig TARGET_OPTIONS
 847         bool "Target Options"  if DEVEL
 848
 849         config TARGET_OPTIMIZATION
 850                 string "Target Optimizations" if TARGET_OPTIONS
 851                 default DEFAULT_TARGET_OPTIMIZATION
 852                 help
 853                   Optimizations to use when building for the target host.
 854
 855         config SOFT_FLOAT
 856                 bool "Use software floating point by default" if TARGET_OPTIONS
 857                 default y
 858                 depends on (arm || armeb || powerpc || mipsel || mips || mips64el || mips64) && !HAS_FPU
 859                 help
 860                   If your target CPU does not have a Floating Point Unit (FPU) or a
 861                   kernel FPU emulator, but you still wish to support floating point
 862                   functions, then everything will need to be compiled with soft floating
 863                   point support (-msoft-float).
 864
 865                   Most people will answer N.
 866
 867         config USE_MIPS16
 868                 bool "Build packages with MIPS16 instructions" if TARGET_OPTIONS
 869                 depends on HAS_MIPS16
 870                 help
 871                   If your target CPU does support the MIPS16 instruction set
 872                   and you want to use it for packages, enable this option.
 873                   MIPS16 produces smaller binaries thus reducing pressure on
 874                   caches and TLB.
 875
 876                   Most people will answer N.
 877
 878 source "toolchain/Config.in"
 879
 880 source "target/imagebuilder/Config.in"
 881 source "target/sdk/Config.in"
 882 source "target/toolchain/Config.in"
 883
 884 source "tmp/.config-package.in"