Contents of /tags/mkinitrd-6_2_1/busybox/modutils/Config.in
Parent Directory | Revision Log
Revision 999 -
(show annotations)
(download)
Sun May 30 12:16:23 2010 UTC (14 years, 4 months ago) by niro
File size: 7379 byte(s)
Sun May 30 12:16:23 2010 UTC (14 years, 4 months ago) by niro
File size: 7379 byte(s)
tagged 'mkinitrd-6_2_1'
1 | # |
2 | # For a description of the syntax of this configuration file, |
3 | # see scripts/kbuild/config-language.txt. |
4 | # |
5 | |
6 | menu "Linux Module Utilities" |
7 | |
8 | config MODPROBE_SMALL |
9 | bool "Simplified modutils" |
10 | default n |
11 | help |
12 | Simplified modutils. |
13 | |
14 | With this option modprobe does not require modules.dep file |
15 | and does not use /etc/modules.conf file. |
16 | It scans module files in /lib/modules/`uname -r` and |
17 | determines dependencies and module alias names on the fly. |
18 | This may make module loading slower, most notably |
19 | when one needs to load module by alias (this requires |
20 | scanning through module _bodies_). |
21 | |
22 | At the first attempt to load a module by alias modprobe |
23 | will try to generate modules.dep.bb file in order to speed up |
24 | future loads by alias. Failure to do so (read-only /lib/modules, |
25 | etc) is not reported, and future modprobes will be slow too. |
26 | |
27 | NB: modules.dep.bb file format is not compatible |
28 | with modules.dep file as created/used by standard module tools. |
29 | |
30 | Additional module parameters can be stored in |
31 | /etc/modules/$module_name files. |
32 | |
33 | Apart from modprobe, other utilities are also provided: |
34 | - insmod is an alias to modprobe |
35 | - rmmod is an alias to modprobe -r |
36 | - depmod generates modules.dep.bb |
37 | |
38 | As of 2008-07, this code is experimental. It is 14kb smaller |
39 | than "non-small" modutils. |
40 | |
41 | config FEATURE_MODPROBE_SMALL_OPTIONS_ON_CMDLINE |
42 | bool "Accept module options on modprobe command line" |
43 | default n |
44 | depends on MODPROBE_SMALL |
45 | help |
46 | Allow insmod and modprobe take module options from command line. |
47 | |
48 | config FEATURE_MODPROBE_SMALL_CHECK_ALREADY_LOADED |
49 | bool "Skip loading of already loaded modules" |
50 | default n |
51 | depends on MODPROBE_SMALL |
52 | help |
53 | Check if the module is already loaded. |
54 | |
55 | config INSMOD |
56 | bool "insmod" |
57 | default n |
58 | depends on !MODPROBE_SMALL |
59 | help |
60 | insmod is used to load specified modules in the running kernel. |
61 | |
62 | config RMMOD |
63 | bool "rmmod" |
64 | default n |
65 | depends on !MODPROBE_SMALL |
66 | help |
67 | rmmod is used to unload specified modules from the kernel. |
68 | |
69 | config LSMOD |
70 | bool "lsmod" |
71 | default n |
72 | depends on !MODPROBE_SMALL |
73 | help |
74 | lsmod is used to display a list of loaded modules. |
75 | |
76 | config FEATURE_LSMOD_PRETTY_2_6_OUTPUT |
77 | bool "Pretty output" |
78 | default n |
79 | depends on LSMOD |
80 | help |
81 | This option makes output format of lsmod adjusted to |
82 | the format of module-init-tools for Linux kernel 2.6. |
83 | Increases size somewhat. |
84 | |
85 | config MODPROBE |
86 | bool "modprobe" |
87 | default n |
88 | depends on !MODPROBE_SMALL |
89 | help |
90 | Handle the loading of modules, and their dependencies on a high |
91 | level. |
92 | |
93 | config FEATURE_MODPROBE_BLACKLIST |
94 | bool "Blacklist support" |
95 | default n |
96 | depends on MODPROBE |
97 | help |
98 | Say 'y' here to enable support for the 'blacklist' command in |
99 | modprobe.conf. This prevents the alias resolver to resolve |
100 | blacklisted modules. This is useful if you want to prevent your |
101 | hardware autodetection scripts to load modules like evdev, frame |
102 | buffer drivers etc. |
103 | |
104 | config DEPMOD |
105 | bool "depmod" |
106 | default n |
107 | depends on !MODPROBE_SMALL |
108 | help |
109 | depmod generates modules.dep (and potentially modules.alias |
110 | and modules.symbols) that contain dependency information |
111 | for modprobe. |
112 | |
113 | comment "Options common to multiple modutils" |
114 | |
115 | config FEATURE_2_4_MODULES |
116 | bool "Support version 2.2/2.4 Linux kernels" |
117 | default n |
118 | depends on INSMOD || RMMOD || LSMOD |
119 | help |
120 | Support module loading for 2.2.x and 2.4.x Linux kernels. |
121 | This increases size considerably. Say N unless you plan |
122 | to run ancient kernels. |
123 | |
124 | config FEATURE_INSMOD_TRY_MMAP |
125 | bool "Try to load module from a mmap'ed area" |
126 | default n |
127 | depends on INSMOD || MODPROBE_SMALL |
128 | help |
129 | This option causes module loading code to try to mmap |
130 | module first. If it does not work (for example, |
131 | it does not work for compressed modules), module will be read |
132 | (and unpacked if needed) into a memory block allocated by malloc. |
133 | |
134 | The only case when mmap works but malloc does not is when |
135 | you are trying to load a big module on a very memory-constrained |
136 | machine. Malloc will momentarily need 2x as much memory as mmap. |
137 | |
138 | Choosing N saves about 250 bytes of code (on 32-bit x86). |
139 | |
140 | config FEATURE_INSMOD_VERSION_CHECKING |
141 | bool "Enable module version checking" |
142 | default n |
143 | depends on FEATURE_2_4_MODULES && (INSMOD || MODPROBE) |
144 | help |
145 | Support checking of versions for modules. This is used to |
146 | ensure that the kernel and module are made for each other. |
147 | |
148 | config FEATURE_INSMOD_KSYMOOPS_SYMBOLS |
149 | bool "Add module symbols to kernel symbol table" |
150 | default n |
151 | depends on FEATURE_2_4_MODULES && (INSMOD || MODPROBE) |
152 | help |
153 | By adding module symbols to the kernel symbol table, Oops messages |
154 | occuring within kernel modules can be properly debugged. By enabling |
155 | this feature, module symbols will always be added to the kernel symbol |
156 | table for proper debugging support. If you are not interested in |
157 | Oops messages from kernel modules, say N. |
158 | |
159 | config FEATURE_INSMOD_LOADINKMEM |
160 | bool "In kernel memory optimization (uClinux only)" |
161 | default n |
162 | depends on FEATURE_2_4_MODULES && (INSMOD || MODPROBE) |
163 | help |
164 | This is a special uClinux only memory optimization that lets insmod |
165 | load the specified kernel module directly into kernel space, reducing |
166 | memory usage by preventing the need for two copies of the module |
167 | being loaded into memory. |
168 | |
169 | config FEATURE_INSMOD_LOAD_MAP |
170 | bool "Enable insmod load map (-m) option" |
171 | default n |
172 | depends on FEATURE_2_4_MODULES && INSMOD |
173 | help |
174 | Enabling this, one would be able to get a load map |
175 | output on stdout. This makes kernel module debugging |
176 | easier. |
177 | If you don't plan to debug kernel modules, you |
178 | don't need this option. |
179 | |
180 | config FEATURE_INSMOD_LOAD_MAP_FULL |
181 | bool "Symbols in load map" |
182 | default y |
183 | depends on FEATURE_INSMOD_LOAD_MAP && !MODPROBE_SMALL |
184 | help |
185 | Without this option, -m will only output section |
186 | load map. With this option, -m will also output |
187 | symbols load map. |
188 | |
189 | config FEATURE_CHECK_TAINTED_MODULE |
190 | bool "Support tainted module checking with new kernels" |
191 | default y |
192 | depends on (LSMOD || FEATURE_2_4_MODULES) && !MODPROBE_SMALL |
193 | help |
194 | Support checking for tainted modules. These are usually binary |
195 | only modules that will make the linux-kernel list ignore your |
196 | support request. |
197 | This option is required to support GPLONLY modules. |
198 | |
199 | config FEATURE_MODUTILS_ALIAS |
200 | bool "Support for module.aliases file" |
201 | default y |
202 | depends on DEPMOD || MODPROBE |
203 | help |
204 | Generate and parse modules.alias containing aliases for bus |
205 | identifiers: |
206 | alias pcmcia:m*c*f03fn*pfn*pa*pb*pc*pd* parport_cs |
207 | |
208 | and aliases for logical modules names e.g.: |
209 | alias padlock_aes aes |
210 | alias aes_i586 aes |
211 | alias aes_generic aes |
212 | |
213 | Say Y if unsure. |
214 | |
215 | config FEATURE_MODUTILS_SYMBOLS |
216 | bool "Support for module.symbols file" |
217 | default y |
218 | depends on DEPMOD || MODPROBE |
219 | help |
220 | Generate and parse modules.symbols containing aliases for |
221 | symbol_request() kernel calls, such as: |
222 | alias symbol:usb_sg_init usbcore |
223 | |
224 | Say Y if unsure. |
225 | |
226 | config DEFAULT_MODULES_DIR |
227 | string "Default directory containing modules" |
228 | default "/lib/modules" |
229 | depends on DEPMOD || MODPROBE || MODPROBE_SMALL |
230 | help |
231 | Directory that contains kernel modules. |
232 | Defaults to "/lib/modules" |
233 | |
234 | config DEFAULT_DEPMOD_FILE |
235 | string "Default name of modules.dep" |
236 | default "modules.dep" |
237 | depends on DEPMOD || MODPROBE || MODPROBE_SMALL |
238 | help |
239 | Filename that contains kernel modules dependencies. |
240 | Defaults to "modules.dep" |
241 | |
242 | endmenu |