source: branches/3.2/mindi-busybox/modutils/Config.src @ 3232

Last change on this file since 3232 was 3232, checked in by bruno, 5 years ago
  • Update mindi-busybox to 1.21.1
File size: 7.7 KB
Line 
1#
2# For a description of the syntax of this configuration file,
3# see scripts/kbuild/config-language.txt.
4#
5
6menu "Linux Module Utilities"
7
8INSERT
9
10config MODPROBE_SMALL
11    bool "Simplified modutils"
12    default y
13    select PLATFORM_LINUX
14    help
15      Simplified modutils.
16
17      With this option modprobe does not require modules.dep file
18      and does not use /etc/modules.conf file.
19      It scans module files in /lib/modules/`uname -r` and
20      determines dependencies and module alias names on the fly.
21      This may make module loading slower, most notably
22      when one needs to load module by alias (this requires
23      scanning through module _bodies_).
24
25      At the first attempt to load a module by alias modprobe
26      will try to generate modules.dep.bb file in order to speed up
27      future loads by alias. Failure to do so (read-only /lib/modules,
28      etc) is not reported, and future modprobes will be slow too.
29
30      NB: modules.dep.bb file format is not compatible
31      with modules.dep file as created/used by standard module tools.
32
33      Additional module parameters can be stored in
34      /etc/modules/$module_name files.
35
36      Apart from modprobe, other utilities are also provided:
37      - insmod is an alias to modprobe
38      - rmmod is an alias to modprobe -r
39      - depmod generates modules.dep.bb
40
41      As of 2008-07, this code is experimental. It is 14kb smaller
42      than "non-small" modutils.
43
44config FEATURE_MODPROBE_SMALL_OPTIONS_ON_CMDLINE
45    bool "Accept module options on modprobe command line"
46    default y
47    depends on MODPROBE_SMALL
48    select PLATFORM_LINUX
49    help
50      Allow insmod and modprobe take module options from command line.
51
52config FEATURE_MODPROBE_SMALL_CHECK_ALREADY_LOADED
53    bool "Skip loading of already loaded modules"
54    default y
55    depends on MODPROBE_SMALL
56    help
57      Check if the module is already loaded.
58
59config INSMOD
60    bool "insmod"
61    default n
62    depends on !MODPROBE_SMALL
63    select PLATFORM_LINUX
64    help
65      insmod is used to load specified modules in the running kernel.
66
67config RMMOD
68    bool "rmmod"
69    default n
70    depends on !MODPROBE_SMALL
71    select PLATFORM_LINUX
72    help
73      rmmod is used to unload specified modules from the kernel.
74
75config LSMOD
76    bool "lsmod"
77    default n
78    depends on !MODPROBE_SMALL
79    select PLATFORM_LINUX
80    help
81      lsmod is used to display a list of loaded modules.
82
83config FEATURE_LSMOD_PRETTY_2_6_OUTPUT
84    bool "Pretty output"
85    default n
86    depends on LSMOD
87    select PLATFORM_LINUX
88    help
89      This option makes output format of lsmod adjusted to
90      the format of module-init-tools for Linux kernel 2.6.
91      Increases size somewhat.
92
93config MODPROBE
94    bool "modprobe"
95    default n
96    depends on !MODPROBE_SMALL
97    select PLATFORM_LINUX
98    help
99      Handle the loading of modules, and their dependencies on a high
100      level.
101
102config FEATURE_MODPROBE_BLACKLIST
103    bool "Blacklist support"
104    default n
105    depends on MODPROBE
106    select PLATFORM_LINUX
107    help
108      Say 'y' here to enable support for the 'blacklist' command in
109      modprobe.conf. This prevents the alias resolver to resolve
110      blacklisted modules. This is useful if you want to prevent your
111      hardware autodetection scripts to load modules like evdev, frame
112      buffer drivers etc.
113
114config DEPMOD
115    bool "depmod"
116    default n
117    depends on !MODPROBE_SMALL
118    select PLATFORM_LINUX
119    help
120      depmod generates modules.dep (and potentially modules.alias
121      and modules.symbols) that contain dependency information
122      for modprobe.
123
124comment "Options common to multiple modutils"
125
126config FEATURE_2_4_MODULES
127    bool "Support version 2.2/2.4 Linux kernels"
128    default n
129    depends on INSMOD || RMMOD || LSMOD
130    select PLATFORM_LINUX
131    help
132      Support module loading for 2.2.x and 2.4.x Linux kernels.
133      This increases size considerably. Say N unless you plan
134      to run ancient kernels.
135
136config FEATURE_INSMOD_TRY_MMAP
137    bool "Try to load module from a mmap'ed area"
138    default n
139    depends on INSMOD || MODPROBE_SMALL
140    select PLATFORM_LINUX
141    help
142      This option causes module loading code to try to mmap
143      module first. If it does not work (for example,
144      it does not work for compressed modules), module will be read
145      (and unpacked if needed) into a memory block allocated by malloc.
146
147      The only case when mmap works but malloc does not is when
148      you are trying to load a big module on a very memory-constrained
149      machine. Malloc will momentarily need 2x as much memory as mmap.
150
151      Choosing N saves about 250 bytes of code (on 32-bit x86).
152
153config FEATURE_INSMOD_VERSION_CHECKING
154    bool "Enable module version checking"
155    default n
156    depends on FEATURE_2_4_MODULES && (INSMOD || MODPROBE)
157    select PLATFORM_LINUX
158    help
159      Support checking of versions for modules. This is used to
160      ensure that the kernel and module are made for each other.
161
162config FEATURE_INSMOD_KSYMOOPS_SYMBOLS
163    bool "Add module symbols to kernel symbol table"
164    default n
165    depends on FEATURE_2_4_MODULES && (INSMOD || MODPROBE)
166    select PLATFORM_LINUX
167    help
168      By adding module symbols to the kernel symbol table, Oops messages
169      occuring within kernel modules can be properly debugged. By enabling
170      this feature, module symbols will always be added to the kernel symbol
171      table for proper debugging support. If you are not interested in
172      Oops messages from kernel modules, say N.
173
174config FEATURE_INSMOD_LOADINKMEM
175    bool "In kernel memory optimization (uClinux only)"
176    default n
177    depends on FEATURE_2_4_MODULES && (INSMOD || MODPROBE)
178    select PLATFORM_LINUX
179    help
180      This is a special uClinux only memory optimization that lets insmod
181      load the specified kernel module directly into kernel space, reducing
182      memory usage by preventing the need for two copies of the module
183      being loaded into memory.
184
185config FEATURE_INSMOD_LOAD_MAP
186    bool "Enable insmod load map (-m) option"
187    default n
188    depends on FEATURE_2_4_MODULES && INSMOD
189    select PLATFORM_LINUX
190    help
191      Enabling this, one would be able to get a load map
192      output on stdout. This makes kernel module debugging
193      easier.
194      If you don't plan to debug kernel modules, you
195      don't need this option.
196
197config FEATURE_INSMOD_LOAD_MAP_FULL
198    bool "Symbols in load map"
199    default y
200    depends on FEATURE_INSMOD_LOAD_MAP && !MODPROBE_SMALL
201    select PLATFORM_LINUX
202    help
203      Without this option, -m will only output section
204      load map. With this option, -m will also output
205      symbols load map.
206
207config FEATURE_CHECK_TAINTED_MODULE
208    bool "Support tainted module checking with new kernels"
209    default y
210    depends on (LSMOD || FEATURE_2_4_MODULES) && !MODPROBE_SMALL
211    select PLATFORM_LINUX
212    help
213      Support checking for tainted modules. These are usually binary
214      only modules that will make the linux-kernel list ignore your
215      support request.
216      This option is required to support GPLONLY modules.
217
218config FEATURE_MODUTILS_ALIAS
219    bool "Support for module.aliases file"
220    default y
221    depends on DEPMOD || MODPROBE
222    select PLATFORM_LINUX
223    help
224      Generate and parse modules.alias containing aliases for bus
225      identifiers:
226        alias pcmcia:m*c*f03fn*pfn*pa*pb*pc*pd* parport_cs
227
228      and aliases for logical modules names e.g.:
229        alias padlock_aes aes
230        alias aes_i586 aes
231        alias aes_generic aes
232
233      Say Y if unsure.
234
235config FEATURE_MODUTILS_SYMBOLS
236    bool "Support for module.symbols file"
237    default y
238    depends on DEPMOD || MODPROBE
239    select PLATFORM_LINUX
240    help
241      Generate and parse modules.symbols containing aliases for
242      symbol_request() kernel calls, such as:
243        alias symbol:usb_sg_init usbcore
244
245      Say Y if unsure.
246
247config DEFAULT_MODULES_DIR
248    string "Default directory containing modules"
249    default "/lib/modules"
250    depends on DEPMOD || MODPROBE || MODPROBE_SMALL || MODINFO
251    help
252      Directory that contains kernel modules.
253      Defaults to "/lib/modules"
254
255config DEFAULT_DEPMOD_FILE
256    string "Default name of modules.dep"
257    default "modules.dep"
258    depends on DEPMOD || MODPROBE || MODPROBE_SMALL || MODINFO
259    help
260      Filename that contains kernel modules dependencies.
261      Defaults to "modules.dep"
262
263endmenu
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