kernel: turn on kallsyms and debug info by default
[openwrt/svn-archive/archive.git] / 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 HAVE_DOT_CONFIG
10 bool
11 default y
12
13 source "target/Config.in"
14
15 menu "Target Images"
16
17 menuconfig TARGET_ROOTFS_INITRAMFS
18 bool "ramdisk"
19 default y if USES_INITRAMFS
20 help
21 Embed the rootfs into the kernel (initramfs)
22
23 choice
24 prompt "Compression"
25 default TARGET_INITRAMFS_COMPRESSION_LZMA if TARGET_ar71xx
26 default TARGET_INITRAMFS_COMPRESSION_LZMA if TARGET_ramips
27 default TARGET_INITRAMFS_COMPRESSION_NONE
28 depends TARGET_ROOTFS_INITRAMFS
29 help
30 Select ramdisk compression.
31
32 config TARGET_INITRAMFS_COMPRESSION_NONE
33 bool "none"
34
35 config TARGET_INITRAMFS_COMPRESSION_GZIP
36 bool "gzip"
37
38 config TARGET_INITRAMFS_COMPRESSION_BZIP2
39 bool "bzip2"
40
41 config TARGET_INITRAMFS_COMPRESSION_LZMA
42 bool "lzma"
43
44 config TARGET_INITRAMFS_COMPRESSION_LZO
45 bool "lzo"
46
47 config TARGET_INITRAMFS_COMPRESSION_XZ
48 bool "xz"
49 endchoice
50
51 config EXTERNAL_CPIO
52 string
53 prompt "Use external cpio" if TARGET_ROOTFS_INITRAMFS
54 default ""
55 help
56 Kernel uses specified external cpio as INITRAMFS_SOURCE
57
58 comment "Root filesystem archives"
59
60 config TARGET_ROOTFS_CPIOGZ
61 bool "cpio.gz"
62 default y if USES_CPIOGZ
63 help
64 Build a compressed cpio archive of the the root filesystem
65
66 config TARGET_ROOTFS_TARGZ
67 bool "tar.gz"
68 default y if USES_TARGZ
69 help
70 Build a compressed tar archive of the the root filesystem
71
72 comment "Root filesystem images"
73
74 config TARGET_ROOTFS_EXT4FS
75 bool "ext4"
76 default y if USES_EXT4
77 depends !TARGET_ROOTFS_INITRAMFS
78 help
79 Ext4 file system with some free space for uml images
80
81 config TARGET_ROOTFS_ISO
82 bool "iso"
83 default n
84 depends on TARGET_x86_generic
85 depends !TARGET_ROOTFS_INITRAMFS
86 help
87 Create some bootable ISO image
88
89 config TARGET_ROOTFS_JFFS2
90 bool "jffs2"
91 default y if USES_JFFS2
92 depends !TARGET_ROOTFS_INITRAMFS
93 help
94 Build a jffs2 root filesystem
95
96 config TARGET_ROOTFS_SQUASHFS
97 bool "squashfs"
98 default y if USES_SQUASHFS
99 depends !TARGET_ROOTFS_INITRAMFS
100 help
101 Build a squashfs-lzma root filesystem
102
103 config TARGET_ROOTFS_UBIFS
104 bool "ubifs"
105 default y if USES_UBIFS
106 depends !TARGET_ROOTFS_INITRAMFS && USES_UBIFS
107 help
108 Build a ubifs root filesystem
109
110 comment "Image Options"
111
112 source "target/linux/*/image/Config.in"
113
114 config TARGET_ROOTFS_PARTSIZE
115 int "Root filesystem partition size (in MB)"
116 depends X86_GRUB_IMAGES || TARGET_ROOTFS_EXT4FS || TARGET_rb532
117 default 48
118 help
119 Allows you to change the root filesystem partition size
120
121 config TARGET_ROOTFS_MAXINODE
122 int "Maximum number of inodes in root filesystem"
123 depends TARGET_ROOTFS_EXT4FS
124 default 6000
125 help
126 Allows you to change the maximum number of inodes in the root filesystem
127
128 config TARGET_ROOTFS_RESERVED_PCT
129 int "Percentage of reserved blocks in root filesystem"
130 depends TARGET_ROOTFS_EXT4FS
131 default 0
132 help
133 Allows you to change the percentage of reserved blocks in the root filesystem
134
135 endmenu
136
137 menu "Global build settings"
138
139 config ALL
140 bool "Select all packages by default"
141 default n
142
143 comment "General build options"
144
145 config DISPLAY_SUPPORT
146 bool "Show packages that require graphics support (local or remote)"
147 default n
148
149 config BUILD_PATENTED
150 default y
151 bool "Compile with support for patented functionality"
152 help
153 When this option is disabled, software which provides patented functionality will not be built.
154 In case software provides optional support for patented functionality,
155 this optional support will get disabled for this package.
156
157 config BUILD_NLS
158 default n
159 bool "Compile with full language support"
160 help
161 When this option is enabled, packages are built with the full versions of iconv and GNU gettext
162 instead of the default OpenWrt stubs. If uClibc is used, it is also built with locale support.
163
164 config BUILD_STATIC_TOOLS
165 default n
166 bool "Attempt to link host utilities statically"
167 help
168 Linking host utilities like sed or firmware-utils statically increases the portability of the
169 generated ImageBuilder and SDK tarballs, however it may fail on some Linux distributions.
170
171 config SHADOW_PASSWORDS
172 bool
173 prompt "Enable shadow password support"
174 default y
175 help
176 Enable shadow password support.
177
178 config CLEAN_IPKG
179 bool
180 prompt "Remove ipkg/opkg status data files in final images"
181 default n
182 help
183 This removes all ipkg/opkg status data files from the target directory before building the root fs
184
185 config COLLECT_KERNEL_DEBUG
186 bool
187 prompt "Collect kernel debug information"
188 select KERNEL_DEBUG_INFO
189 default n
190 help
191 This collects debugging symbols from the kernel and all compiled modules.
192 Useful for release builds, so that kernel issues can be debugged offline later.
193
194 comment "Kernel build options"
195
196 config KERNEL_DEBUG_FS
197 bool "Compile the kernel with Debug FileSystem enabled"
198 default y
199 help
200 debugfs is a virtual file system that kernel developers use to put
201 debugging files into. Enable this option to be able to read and
202 write to these files.
203
204 config KERNEL_PERF_EVENTS
205 bool
206 default n
207
208 config KERNEL_PROFILING
209 bool "Compile the kernel with profiling enabled"
210 default n
211 select KERNEL_PERF_EVENTS
212 help
213 Enable the extended profiling support mechanisms used by profilers such
214 as OProfile.
215
216 config KERNEL_KALLSYMS
217 bool "Compile the kernel with symbol table information"
218 default y
219 help
220 This will give you more information in stack traces from kernel oopses
221
222 config KERNEL_FTRACE
223 bool "Compile the kernel with tracing support"
224 default n
225
226 config KERNEL_ENABLE_DEFAULT_TRACERS
227 bool "Trace process context switches and events"
228 depends on KERNEL_FTRACE
229 default n
230
231 config KERNEL_DEBUG_KERNEL
232 bool
233 default n
234
235 config KERNEL_DEBUG_INFO
236 bool "Compile the kernel with debug information"
237 default y
238 select KERNEL_DEBUG_KERNEL
239 help
240 This will compile your kernel and modules with debug information.
241
242 config KERNEL_DEBUG_LL_UART_NONE
243 bool
244 default n
245 depends on arm
246
247 config KERNEL_DEBUG_LL
248 bool
249 default n
250 depends on arm
251 select KERNEL_DEBUG_LL_UART_NONE
252 help
253 ARM low level debugging
254
255 config KERNEL_EARLY_PRINTK
256 bool "Compile the kernel with early printk"
257 default n
258 depends on arm
259 select KERNEL_DEBUG_KERNEL
260 select KERNEL_DEBUG_LL if arm
261 help
262 Compile the kernel with early printk support.
263 This is only useful for debugging purposes to send messages
264 over the serial console in early boot.
265 Enable this to debug early boot problems.
266
267 config KERNEL_AIO
268 bool "Compile the kernel with asynchronous IO support"
269 default n
270
271 config KERNEL_DIRECT_IO
272 bool "Compile the kernel with direct IO support"
273 default n
274
275 config KERNEL_MAGIC_SYSRQ
276 bool "Compile the kernel with SysRq support"
277 default y
278
279 config KERNEL_COREDUMP
280 bool
281
282 config KERNEL_ELF_CORE
283 bool "Enable process core dump support"
284 select KERNEL_COREDUMP
285 default y
286
287 config KERNEL_PROVE_LOCKING
288 bool "Enable kernel lock checking"
289 select KERNEL_DEBUG_KERNEL
290 default n
291
292 config KERNEL_PRINTK_TIME
293 bool "Enable printk timestamps"
294 default y
295
296 #
297 # CGROUP support symbols
298 #
299
300 config KERNEL_FREEZER
301 bool
302 default y if KERNEL_CGROUP_FREEZER
303 depends KERNEL_CGROUPS
304
305 config KERNEL_CGROUP_FREEZER
306 bool
307 depends KERNEL_CGROUPS
308
309 config KERNEL_CGROUP_DEVICE
310 bool
311 depends KERNEL_CGROUPS
312
313 config KERNEL_CPUSETS
314 bool
315 default y if KERNEL_CGROUP_CPUACCT
316 depends KERNEL_CGROUPS
317
318 config KERNEL_PROC_PID_CPUSET
319 bool
320 default y if KERNEL_CGROUP_CPUACCT
321 depends KERNEL_CGROUPS
322
323 config KERNEL_CGROUP_CPUACCT
324 bool
325 depends KERNEL_CGROUPS
326
327 config KERNEL_RESOURCE_COUNTERS
328 bool
329 default y if KERNEL_CGROUP_MEM_RES_CTLR
330 depends KERNEL_CGROUPS
331
332 config KERNEL_CGROUP_MEM_RES_CTLR
333 bool
334 depends KERNEL_CGROUPS
335
336 config KERNEL_CGROUP_MEM_RES_CTLR_SWAP
337 bool
338 depends KERNEL_CGROUPS
339
340 config KERNEL_CGROUP_MEM_RES_CTLR_SWAP_ENABLED
341 bool
342 depends KERNEL_CGROUPS
343
344 config KERNEL_CGROUP_MEM_RES_CTLR_KMEM
345 bool
346 depends KERNEL_CGROUPS
347
348 config KERNEL_CGROUP_PERF
349 bool
350 depends KERNEL_CGROUPS
351
352 config KERNEL_CFS_BANDWIDTH
353 bool
354 default y if KERNEL_FAIR_GROUP_SCHED
355 depends KERNEL_CGROUP_SCHED
356
357 config KERNEL_FAIR_GROUP_SCHED
358 bool
359 default y if KERNEL_CGROUP_SCHED
360 depends KERNEL_CGROUP_SCHED
361
362 config KERNEL_RT_GROUP_SCHED
363 bool
364 default y if KERNEL_CGROUP_SCHED
365 depends KERNEL_CGROUP_SCHED
366
367 config KERNEL_CGROUP_SCHED
368 bool
369 depends KERNEL_CGROUPS
370
371 config KERNEL_NET_CLS_CGROUP
372 bool
373 depends KERNEL_CGROUPS
374
375 config KERNEL_NETPRIO_CGROUP
376 bool
377 depends KERNEL_CGROUPS
378
379 config KERNEL_BLK_CGROUP
380 bool
381 depends KERNEL_CGROUPS
382
383 config KERNEL_DEBUG_BLK_CGROUP
384 bool
385 default n if KERNEL_CGROUPS
386 depends KERNEL_CGROUPS
387
388 config KERNEL_CGROUPS
389 bool "Enable kernel cgroups"
390 default n
391 select KERNEL_CGROUP_FREEZER
392 select KERNEL_CGROUP_DEVICE
393 select KERNEL_CGROUP_CPUACCT
394 select KERNEL_CGROUP_MEM_RES_CTLR
395 select KERNEL_CGROUP_MEM_RES_CTLR_SWAP
396 select KERNEL_CGROUP_MEM_RES_CTLR_SWAP_ENABLED
397 select KERNEL_CGROUP_MEM_RES_CTLR_KMEM
398 select KERNEL_CGROUP_PERF
399 select KERNEL_CGROUP_SCHED
400 select KERNEL_NET_CLS_CGROUP
401 select KERNEL_NETPRIO_CGROUP
402 select KERNEL_BLK_CGROUP
403
404 #
405 # Namespace support symbols
406 #
407
408 config KERNEL_UTS_NS
409 bool
410 depends KERNEL_NAMESPACES
411
412 config KERNEL_IPC_NS
413 bool
414 depends KERNEL_NAMESPACES
415
416 config KERNEL_USER_NS
417 bool
418 depends KERNEL_NAMESPACES
419
420 config KERNEL_PID_NS
421 bool
422 depends KERNEL_NAMESPACES
423
424 config KERNEL_NET_NS
425 bool
426 depends KERNEL_NAMESPACES
427
428 config KERNEL_DEVPTS_MULTIPLE_INSTANCES
429 bool
430 depends KERNEL_NAMESPACES
431
432 config KERNEL_NAMESPACES
433 bool "Enable kernel namespaces"
434 default n
435 select KERNEL_UTS_NS
436 select KERNEL_IPC_NS
437 select KERNEL_USER_NS
438 select KERNEL_PID_NS
439 select KERNEL_NET_NS
440 select KERNEL_DEVPTS_MULTIPLE_INSTANCES
441
442
443 comment "Package build options"
444
445 config DEBUG
446 bool
447 prompt "Compile packages with debugging info"
448 default n
449 help
450 Adds -g3 to the CFLAGS
451
452 config IPV6
453 bool
454 prompt "Enable IPv6 support in packages"
455 default y
456 help
457 Enable IPV6 support in packages (passes --enable-ipv6 to configure scripts).
458
459 config PKG_BUILD_PARALLEL
460 bool
461 prompt "Compile certain packages parallelized"
462 default y
463 help
464 This adds a -jX option to certain packages that are known to
465 behave well for parallel build. By default the package make processes
466 use the main jobserver, in which case this option only takes effect
467 when you add -jX to the make command.
468
469 If you are unsure, select N.
470
471 config PKG_BUILD_USE_JOBSERVER
472 bool
473 prompt "Use top-level make jobserver for packages"
474 depends on PKG_BUILD_PARALLEL
475 default y
476 help
477 This passes the main make process jobserver fds to package builds,
478 enabling full parallelization across different packages
479
480 Note that disabling this may overcommit CPU resources depending on the
481 -j level of the main make process, the number of package
482 submake jobs selected below and the number of actual CPUs present.
483 Example: If the main make is passed a -j4 and the submake -j
484 is also set to 4, we may end up with 16 parallel make processes
485 in the worst case.
486
487
488 config PKG_BUILD_JOBS
489 int
490 prompt "Number of package submake jobs (2-512)"
491 range 2 512
492 default 2
493 depends on PKG_BUILD_PARALLEL && !PKG_BUILD_USE_JOBSERVER
494 help
495 The number of jobs (-jX) to pass to packages submake.
496
497 config PKG_DEFAULT_PARALLEL
498 bool
499 prompt "Parallelize the default package build rule (May break build)"
500 depends on PKG_BUILD_PARALLEL
501 depends on BROKEN
502 default n
503 help
504 Always set the default package build rules to parallel build.
505
506 WARNING: This may break build or kill your cat, as it builds
507 packages with multiple jobs that are probably not tested in
508 a parallel build environment.
509
510 Only say Y, if you don't mind fixing broken packages.
511 Before reporting build bugs, set this to N and re-run the build.
512
513 comment "Stripping options"
514
515 choice
516 prompt "Binary stripping method"
517 default USE_STRIP if EXTERNAL_TOOLCHAIN
518 default USE_STRIP if USE_GLIBC || USE_EGLIBC
519 default USE_SSTRIP
520 help
521 Select the binary stripping method you wish to use.
522
523 config NO_STRIP
524 bool "none"
525 help
526 This will install unstripped binaries (useful for native compiling/debugging)
527
528 config USE_STRIP
529 bool "strip"
530 help
531 This will install binaries stripped using strip from binutils
532
533
534 config USE_SSTRIP
535 bool "sstrip"
536 depends !DEBUG
537 depends !USE_GLIBC
538 depends !USE_EGLIBC
539 depends !USE_MUSL
540 help
541 This will install binaries stripped using sstrip
542 endchoice
543
544 config STRIP_ARGS
545 string
546 prompt "Strip arguments"
547 depends USE_STRIP
548 default "--strip-unneeded --remove-section=.comment --remove-section=.note" if DEBUG
549 default "--strip-all"
550 help
551 Specifies arguments passed to the strip command when stripping binaries
552
553 config STRIP_KERNEL_EXPORTS
554 bool "Strip unnecessary exports from the kernel image"
555 depends BROKEN
556 help
557 Reduces kernel size by stripping unused kernel exports from the kernel image
558 Note that this might make the kernel incompatible with any kernel modules that
559 were not selected at the time the kernel image was created
560
561 config USE_MKLIBS
562 bool "Strip unnecessary functions from libraries"
563 help
564 Reduces libraries to only those functions that are necessary for using all
565 selected packages (including those selected as <M>)
566 Note that this will make the system libraries incompatible with most of the packages
567 that are not selected during the build process
568
569 if INSTALL_LIBSTDCPP
570 choice
571 prompt "Preferred standard C++ library"
572 default USE_LIBSTDCXX if USE_EGLIBC
573 default USE_UCLIBCXX
574 help
575 Select the preferred standard C++ library for all packages that support this.
576
577 config USE_UCLIBCXX
578 bool "uClibc++"
579
580 config USE_LIBSTDCXX
581 bool "libstdc++"
582 endchoice
583 endif
584
585 endmenu
586
587 menuconfig DEVEL
588 bool "Advanced configuration options (for developers)"
589 default n
590
591 config BROKEN
592 bool "Show broken platforms / packages" if DEVEL
593 default n
594
595 config DOWNLOAD_FOLDER
596 string "Download folder" if DEVEL
597 default ""
598
599 config LOCALMIRROR
600 string "Local mirror for source packages" if DEVEL
601 default ""
602
603 config AUTOREBUILD
604 bool "Automatic rebuild of packages" if DEVEL
605 default y
606 help
607 Automatically rebuild packages when their files change
608
609 config BUILD_SUFFIX
610 string "Build suffix to append to the BUILD_DIR variable" if DEVEL
611 default ""
612 help
613 Build suffix to append to the BUILD_DIR variable, i.e: build_dir_suffix
614
615 config TARGET_ROOTFS_DIR
616 string "Override the default TARGET_ROOTFS_DIR variable" if DEVEL
617 default ""
618 help
619 Override the default TARGET_ROOTFS_DIR variable content $(BUILD_DIR) with custom path.
620 Use this option to re-define the location of the target root file system directory.
621
622 config CCACHE
623 bool "Use ccache" if DEVEL
624 default n
625 help
626 Compiler cache; see http://ccache.samba.org/
627
628 config EXTERNAL_KERNEL_TREE
629 string "Use external kernel tree" if DEVEL
630 default ""
631
632 config KERNEL_GIT_CLONE_URI
633 string "Enter git repository to clone" if DEVEL
634 default ""
635 help
636 Enter the full git repository path i.e.:
637 git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
638 This will create a git clone of the kernel in your build
639 directory.
640
641 config KERNEL_GIT_LOCAL_REPOSITORY
642 string "Enter path to local reference repository" if DEVEL
643 default ""
644 help
645 Enter a full pathname to a local reference git repository.
646 In this instance, the --refererence option of git clone will
647 be used thus creating a quick local clone of your repo.
648
649 config BUILD_LOG
650 bool "Enable log files during build process" if DEVEL
651 help
652 If enabled log files will be written to the ./log directory
653
654 config SRC_TREE_OVERRIDE
655 bool "Enable package source tree override" if DEVEL
656 help
657 If enabled, you can force a package to use a git tree as source
658 code instead of the normal tarball. Create a symlink 'git-src'
659 in the package directory, pointing to the .git tree that you want
660 to pull the source code from
661
662 menuconfig TARGET_OPTIONS
663 bool "Target Options" if DEVEL
664
665 config TARGET_OPTIMIZATION
666 string "Target Optimizations" if TARGET_OPTIONS
667 default DEFAULT_TARGET_OPTIMIZATION
668 help
669 Optimizations to use when building for the target host.
670
671 config SOFT_FLOAT
672 bool "Use software floating point by default" if TARGET_OPTIONS
673 default y
674 depends on (arm || armeb || powerpc || mipsel || mips) && !HAS_FPU
675 help
676 If your target CPU does not have a Floating Point Unit (FPU) or a
677 kernel FPU emulator, but you still wish to support floating point
678 functions, then everything will need to be compiled with soft floating
679 point support (-msoft-float).
680
681 Most people will answer N.
682
683 source "toolchain/Config.in"
684
685 source "target/imagebuilder/Config.in"
686 source "target/sdk/Config.in"
687 source "target/toolchain/Config.in"
688
689 source "tmp/.config-package.in"