Root/package/busybox/config/modutils/Config.in

1# DO NOT EDIT. This file is generated from Config.src
2#
3# For a description of the syntax of this configuration file,
4# see scripts/kbuild/config-language.txt.
5#
6
7menu "Linux Module Utilities"
8
9config BUSYBOX_CONFIG_MODINFO
10    bool "modinfo"
11    default n
12    select BUSYBOX_CONFIG_PLATFORM_LINUX
13    help
14      Show information about a Linux Kernel module
15
16config BUSYBOX_CONFIG_MODPROBE_SMALL
17    bool "Simplified modutils"
18    default n
19    select BUSYBOX_CONFIG_PLATFORM_LINUX
20    help
21      Simplified modutils.
22
23      With this option modprobe does not require modules.dep file
24      and does not use /etc/modules.conf file.
25      It scans module files in /lib/modules/`uname -r` and
26      determines dependencies and module alias names on the fly.
27      This may make module loading slower, most notably
28      when one needs to load module by alias (this requires
29      scanning through module _bodies_).
30
31      At the first attempt to load a module by alias modprobe
32      will try to generate modules.dep.bb file in order to speed up
33      future loads by alias. Failure to do so (read-only /lib/modules,
34      etc) is not reported, and future modprobes will be slow too.
35
36      NB: modules.dep.bb file format is not compatible
37      with modules.dep file as created/used by standard module tools.
38
39      Additional module parameters can be stored in
40      /etc/modules/$module_name files.
41
42      Apart from modprobe, other utilities are also provided:
43      - insmod is an alias to modprobe
44      - rmmod is an alias to modprobe -r
45      - depmod generates modules.dep.bb
46
47      As of 2008-07, this code is experimental. It is 14kb smaller
48      than "non-small" modutils.
49
50config BUSYBOX_CONFIG_FEATURE_MODPROBE_SMALL_OPTIONS_ON_CMDLINE
51    bool "Accept module options on modprobe command line"
52    default n
53    depends on BUSYBOX_CONFIG_MODPROBE_SMALL
54    select BUSYBOX_CONFIG_PLATFORM_LINUX
55    help
56      Allow insmod and modprobe take module options from command line.
57
58config BUSYBOX_CONFIG_FEATURE_MODPROBE_SMALL_CHECK_ALREADY_LOADED
59    bool "Skip loading of already loaded modules"
60    default n
61    depends on BUSYBOX_CONFIG_MODPROBE_SMALL
62    help
63      Check if the module is already loaded.
64
65config BUSYBOX_CONFIG_INSMOD
66    bool "insmod"
67    default y
68    depends on !BUSYBOX_CONFIG_MODPROBE_SMALL
69    select BUSYBOX_CONFIG_PLATFORM_LINUX
70    help
71      insmod is used to load specified modules in the running kernel.
72
73config BUSYBOX_CONFIG_RMMOD
74    bool "rmmod"
75    default y
76    depends on !BUSYBOX_CONFIG_MODPROBE_SMALL
77    select BUSYBOX_CONFIG_PLATFORM_LINUX
78    help
79      rmmod is used to unload specified modules from the kernel.
80
81config BUSYBOX_CONFIG_LSMOD
82    bool "lsmod"
83    default y
84    depends on !BUSYBOX_CONFIG_MODPROBE_SMALL
85    select BUSYBOX_CONFIG_PLATFORM_LINUX
86    help
87      lsmod is used to display a list of loaded modules.
88
89config BUSYBOX_CONFIG_FEATURE_LSMOD_PRETTY_2_6_OUTPUT
90    bool "Pretty output"
91    default y
92    depends on BUSYBOX_CONFIG_LSMOD
93    select BUSYBOX_CONFIG_PLATFORM_LINUX
94    help
95      This option makes output format of lsmod adjusted to
96      the format of module-init-tools for Linux kernel 2.6.
97      Increases size somewhat.
98
99config BUSYBOX_CONFIG_MODPROBE
100    bool "modprobe"
101    default n
102    depends on !BUSYBOX_CONFIG_MODPROBE_SMALL
103    select BUSYBOX_CONFIG_PLATFORM_LINUX
104    help
105      Handle the loading of modules, and their dependencies on a high
106      level.
107
108config BUSYBOX_CONFIG_FEATURE_MODPROBE_BLACKLIST
109    bool "Blacklist support"
110    default n
111    depends on BUSYBOX_CONFIG_MODPROBE
112    select BUSYBOX_CONFIG_PLATFORM_LINUX
113    help
114      Say 'y' here to enable support for the 'blacklist' command in
115      modprobe.conf. This prevents the alias resolver to resolve
116      blacklisted modules. This is useful if you want to prevent your
117      hardware autodetection scripts to load modules like evdev, frame
118      buffer drivers etc.
119
120config BUSYBOX_CONFIG_DEPMOD
121    bool "depmod"
122    default n
123    depends on !BUSYBOX_CONFIG_MODPROBE_SMALL
124    select BUSYBOX_CONFIG_PLATFORM_LINUX
125    help
126      depmod generates modules.dep (and potentially modules.alias
127      and modules.symbols) that contain dependency information
128      for modprobe.
129
130comment "Options common to multiple modutils"
131
132config BUSYBOX_CONFIG_FEATURE_2_4_MODULES
133    bool "Support version 2.2/2.4 Linux kernels"
134    default n
135    depends on BUSYBOX_CONFIG_INSMOD || BUSYBOX_CONFIG_RMMOD || BUSYBOX_CONFIG_LSMOD
136    select BUSYBOX_CONFIG_PLATFORM_LINUX
137    help
138      Support module loading for 2.2.x and 2.4.x Linux kernels.
139      This increases size considerably. Say N unless you plan
140      to run ancient kernels.
141
142config BUSYBOX_CONFIG_FEATURE_INSMOD_TRY_MMAP
143    bool "Try to load module from a mmap'ed area"
144    default n
145    depends on BUSYBOX_CONFIG_INSMOD || BUSYBOX_CONFIG_MODPROBE_SMALL
146    select BUSYBOX_CONFIG_PLATFORM_LINUX
147    help
148      This option causes module loading code to try to mmap
149      module first. If it does not work (for example,
150      it does not work for compressed modules), module will be read
151      (and unpacked if needed) into a memory block allocated by malloc.
152
153      The only case when mmap works but malloc does not is when
154      you are trying to load a big module on a very memory-constrained
155      machine. Malloc will momentarily need 2x as much memory as mmap.
156
157      Choosing N saves about 250 bytes of code (on 32-bit x86).
158
159config BUSYBOX_CONFIG_FEATURE_INSMOD_VERSION_CHECKING
160    bool "Enable module version checking"
161    default n
162    depends on BUSYBOX_CONFIG_FEATURE_2_4_MODULES && (BUSYBOX_CONFIG_INSMOD || BUSYBOX_CONFIG_MODPROBE)
163    select BUSYBOX_CONFIG_PLATFORM_LINUX
164    help
165      Support checking of versions for modules. This is used to
166      ensure that the kernel and module are made for each other.
167
168config BUSYBOX_CONFIG_FEATURE_INSMOD_KSYMOOPS_SYMBOLS
169    bool "Add module symbols to kernel symbol table"
170    default n
171    depends on BUSYBOX_CONFIG_FEATURE_2_4_MODULES && (BUSYBOX_CONFIG_INSMOD || BUSYBOX_CONFIG_MODPROBE)
172    select BUSYBOX_CONFIG_PLATFORM_LINUX
173    help
174      By adding module symbols to the kernel symbol table, Oops messages
175      occuring within kernel modules can be properly debugged. By enabling
176      this feature, module symbols will always be added to the kernel symbol
177      table for proper debugging support. If you are not interested in
178      Oops messages from kernel modules, say N.
179
180config BUSYBOX_CONFIG_FEATURE_INSMOD_LOADINKMEM
181    bool "In kernel memory optimization (uClinux only)"
182    default n
183    depends on BUSYBOX_CONFIG_FEATURE_2_4_MODULES && (BUSYBOX_CONFIG_INSMOD || BUSYBOX_CONFIG_MODPROBE)
184    select BUSYBOX_CONFIG_PLATFORM_LINUX
185    help
186      This is a special uClinux only memory optimization that lets insmod
187      load the specified kernel module directly into kernel space, reducing
188      memory usage by preventing the need for two copies of the module
189      being loaded into memory.
190
191config BUSYBOX_CONFIG_FEATURE_INSMOD_LOAD_MAP
192    bool "Enable insmod load map (-m) option"
193    default n
194    depends on BUSYBOX_CONFIG_FEATURE_2_4_MODULES && BUSYBOX_CONFIG_INSMOD
195    select BUSYBOX_CONFIG_PLATFORM_LINUX
196    help
197      Enabling this, one would be able to get a load map
198      output on stdout. This makes kernel module debugging
199      easier.
200      If you don't plan to debug kernel modules, you
201      don't need this option.
202
203config BUSYBOX_CONFIG_FEATURE_INSMOD_LOAD_MAP_FULL
204    bool "Symbols in load map"
205    default n
206    depends on BUSYBOX_CONFIG_FEATURE_INSMOD_LOAD_MAP && !BUSYBOX_CONFIG_MODPROBE_SMALL
207    select BUSYBOX_CONFIG_PLATFORM_LINUX
208    help
209      Without this option, -m will only output section
210      load map. With this option, -m will also output
211      symbols load map.
212
213config BUSYBOX_CONFIG_FEATURE_CHECK_TAINTED_MODULE
214    bool "Support tainted module checking with new kernels"
215    default y
216    depends on (BUSYBOX_CONFIG_LSMOD || BUSYBOX_CONFIG_FEATURE_2_4_MODULES) && !BUSYBOX_CONFIG_MODPROBE_SMALL
217    select BUSYBOX_CONFIG_PLATFORM_LINUX
218    help
219      Support checking for tainted modules. These are usually binary
220      only modules that will make the linux-kernel list ignore your
221      support request.
222      This option is required to support GPLONLY modules.
223
224config BUSYBOX_CONFIG_FEATURE_MODUTILS_ALIAS
225    bool "Support for module.aliases file"
226    default n
227    depends on BUSYBOX_CONFIG_DEPMOD || BUSYBOX_CONFIG_MODPROBE
228    select BUSYBOX_CONFIG_PLATFORM_LINUX
229    help
230      Generate and parse modules.alias containing aliases for bus
231      identifiers:
232        alias pcmcia:m*c*f03fn*pfn*pa*pb*pc*pd* parport_cs
233
234      and aliases for logical modules names e.g.:
235        alias padlock_aes aes
236        alias aes_i586 aes
237        alias aes_generic aes
238
239      Say Y if unsure.
240
241config BUSYBOX_CONFIG_FEATURE_MODUTILS_SYMBOLS
242    bool "Support for module.symbols file"
243    default n
244    depends on BUSYBOX_CONFIG_DEPMOD || BUSYBOX_CONFIG_MODPROBE
245    select BUSYBOX_CONFIG_PLATFORM_LINUX
246    help
247      Generate and parse modules.symbols containing aliases for
248      symbol_request() kernel calls, such as:
249        alias symbol:usb_sg_init usbcore
250
251      Say Y if unsure.
252
253config BUSYBOX_CONFIG_DEFAULT_MODULES_DIR
254    string "Default directory containing modules"
255    default "/lib/modules"
256    depends on BUSYBOX_CONFIG_DEPMOD || BUSYBOX_CONFIG_INSMOD || BUSYBOX_CONFIG_MODPROBE || BUSYBOX_CONFIG_MODPROBE_SMALL || BUSYBOX_CONFIG_MODINFO
257    help
258      Directory that contains kernel modules.
259      Defaults to "/lib/modules"
260
261config BUSYBOX_CONFIG_DEFAULT_DEPMOD_FILE
262    string "Default name of modules.dep"
263    default "modules.dep"
264    depends on BUSYBOX_CONFIG_DEPMOD || BUSYBOX_CONFIG_MODPROBE || BUSYBOX_CONFIG_MODPROBE_SMALL || BUSYBOX_CONFIG_MODINFO
265    help
266      Filename that contains kernel modules dependencies.
267      Defaults to "modules.dep"
268
269endmenu
270

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