Annotation of /tags/mkinitrd-6_3_1/busybox/modutils/Config.src
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Thu Aug 19 12:44:27 2010 UTC (14 years, 1 month ago) by niro
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Thu Aug 19 12:44:27 2010 UTC (14 years, 1 month ago) by niro
File MIME type: application/x-wais-source
File size: 7409 byte(s)
tagged 'mkinitrd-6_3_1'
1 | niro | 1123 | # |
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 | INSERT | ||
9 | |||
10 | config MODPROBE_SMALL | ||
11 | bool "Simplified modutils" | ||
12 | default y | ||
13 | help | ||
14 | Simplified modutils. | ||
15 | |||
16 | With this option modprobe does not require modules.dep file | ||
17 | and does not use /etc/modules.conf file. | ||
18 | It scans module files in /lib/modules/`uname -r` and | ||
19 | determines dependencies and module alias names on the fly. | ||
20 | This may make module loading slower, most notably | ||
21 | when one needs to load module by alias (this requires | ||
22 | scanning through module _bodies_). | ||
23 | |||
24 | At the first attempt to load a module by alias modprobe | ||
25 | will try to generate modules.dep.bb file in order to speed up | ||
26 | future loads by alias. Failure to do so (read-only /lib/modules, | ||
27 | etc) is not reported, and future modprobes will be slow too. | ||
28 | |||
29 | NB: modules.dep.bb file format is not compatible | ||
30 | with modules.dep file as created/used by standard module tools. | ||
31 | |||
32 | Additional module parameters can be stored in | ||
33 | /etc/modules/$module_name files. | ||
34 | |||
35 | Apart from modprobe, other utilities are also provided: | ||
36 | - insmod is an alias to modprobe | ||
37 | - rmmod is an alias to modprobe -r | ||
38 | - depmod generates modules.dep.bb | ||
39 | |||
40 | As of 2008-07, this code is experimental. It is 14kb smaller | ||
41 | than "non-small" modutils. | ||
42 | |||
43 | config FEATURE_MODPROBE_SMALL_OPTIONS_ON_CMDLINE | ||
44 | bool "Accept module options on modprobe command line" | ||
45 | default y | ||
46 | depends on MODPROBE_SMALL | ||
47 | help | ||
48 | Allow insmod and modprobe take module options from command line. | ||
49 | |||
50 | config FEATURE_MODPROBE_SMALL_CHECK_ALREADY_LOADED | ||
51 | bool "Skip loading of already loaded modules" | ||
52 | default y | ||
53 | depends on MODPROBE_SMALL | ||
54 | help | ||
55 | Check if the module is already loaded. | ||
56 | |||
57 | config INSMOD | ||
58 | bool "insmod" | ||
59 | default n | ||
60 | depends on !MODPROBE_SMALL | ||
61 | help | ||
62 | insmod is used to load specified modules in the running kernel. | ||
63 | |||
64 | config RMMOD | ||
65 | bool "rmmod" | ||
66 | default n | ||
67 | depends on !MODPROBE_SMALL | ||
68 | help | ||
69 | rmmod is used to unload specified modules from the kernel. | ||
70 | |||
71 | config LSMOD | ||
72 | bool "lsmod" | ||
73 | default n | ||
74 | depends on !MODPROBE_SMALL | ||
75 | help | ||
76 | lsmod is used to display a list of loaded modules. | ||
77 | |||
78 | config FEATURE_LSMOD_PRETTY_2_6_OUTPUT | ||
79 | bool "Pretty output" | ||
80 | default n | ||
81 | depends on LSMOD | ||
82 | help | ||
83 | This option makes output format of lsmod adjusted to | ||
84 | the format of module-init-tools for Linux kernel 2.6. | ||
85 | Increases size somewhat. | ||
86 | |||
87 | config MODPROBE | ||
88 | bool "modprobe" | ||
89 | default n | ||
90 | depends on !MODPROBE_SMALL | ||
91 | help | ||
92 | Handle the loading of modules, and their dependencies on a high | ||
93 | level. | ||
94 | |||
95 | config FEATURE_MODPROBE_BLACKLIST | ||
96 | bool "Blacklist support" | ||
97 | default n | ||
98 | depends on MODPROBE | ||
99 | help | ||
100 | Say 'y' here to enable support for the 'blacklist' command in | ||
101 | modprobe.conf. This prevents the alias resolver to resolve | ||
102 | blacklisted modules. This is useful if you want to prevent your | ||
103 | hardware autodetection scripts to load modules like evdev, frame | ||
104 | buffer drivers etc. | ||
105 | |||
106 | config DEPMOD | ||
107 | bool "depmod" | ||
108 | default n | ||
109 | depends on !MODPROBE_SMALL | ||
110 | help | ||
111 | depmod generates modules.dep (and potentially modules.alias | ||
112 | and modules.symbols) that contain dependency information | ||
113 | for modprobe. | ||
114 | |||
115 | comment "Options common to multiple modutils" | ||
116 | |||
117 | config FEATURE_2_4_MODULES | ||
118 | bool "Support version 2.2/2.4 Linux kernels" | ||
119 | default n | ||
120 | depends on INSMOD || RMMOD || LSMOD | ||
121 | help | ||
122 | Support module loading for 2.2.x and 2.4.x Linux kernels. | ||
123 | This increases size considerably. Say N unless you plan | ||
124 | to run ancient kernels. | ||
125 | |||
126 | config FEATURE_INSMOD_TRY_MMAP | ||
127 | bool "Try to load module from a mmap'ed area" | ||
128 | default n | ||
129 | depends on INSMOD || MODPROBE_SMALL | ||
130 | help | ||
131 | This option causes module loading code to try to mmap | ||
132 | module first. If it does not work (for example, | ||
133 | it does not work for compressed modules), module will be read | ||
134 | (and unpacked if needed) into a memory block allocated by malloc. | ||
135 | |||
136 | The only case when mmap works but malloc does not is when | ||
137 | you are trying to load a big module on a very memory-constrained | ||
138 | machine. Malloc will momentarily need 2x as much memory as mmap. | ||
139 | |||
140 | Choosing N saves about 250 bytes of code (on 32-bit x86). | ||
141 | |||
142 | config FEATURE_INSMOD_VERSION_CHECKING | ||
143 | bool "Enable module version checking" | ||
144 | default n | ||
145 | depends on FEATURE_2_4_MODULES && (INSMOD || MODPROBE) | ||
146 | help | ||
147 | Support checking of versions for modules. This is used to | ||
148 | ensure that the kernel and module are made for each other. | ||
149 | |||
150 | config FEATURE_INSMOD_KSYMOOPS_SYMBOLS | ||
151 | bool "Add module symbols to kernel symbol table" | ||
152 | default n | ||
153 | depends on FEATURE_2_4_MODULES && (INSMOD || MODPROBE) | ||
154 | help | ||
155 | By adding module symbols to the kernel symbol table, Oops messages | ||
156 | occuring within kernel modules can be properly debugged. By enabling | ||
157 | this feature, module symbols will always be added to the kernel symbol | ||
158 | table for proper debugging support. If you are not interested in | ||
159 | Oops messages from kernel modules, say N. | ||
160 | |||
161 | config FEATURE_INSMOD_LOADINKMEM | ||
162 | bool "In kernel memory optimization (uClinux only)" | ||
163 | default n | ||
164 | depends on FEATURE_2_4_MODULES && (INSMOD || MODPROBE) | ||
165 | help | ||
166 | This is a special uClinux only memory optimization that lets insmod | ||
167 | load the specified kernel module directly into kernel space, reducing | ||
168 | memory usage by preventing the need for two copies of the module | ||
169 | being loaded into memory. | ||
170 | |||
171 | config FEATURE_INSMOD_LOAD_MAP | ||
172 | bool "Enable insmod load map (-m) option" | ||
173 | default n | ||
174 | depends on FEATURE_2_4_MODULES && INSMOD | ||
175 | help | ||
176 | Enabling this, one would be able to get a load map | ||
177 | output on stdout. This makes kernel module debugging | ||
178 | easier. | ||
179 | If you don't plan to debug kernel modules, you | ||
180 | don't need this option. | ||
181 | |||
182 | config FEATURE_INSMOD_LOAD_MAP_FULL | ||
183 | bool "Symbols in load map" | ||
184 | default y | ||
185 | depends on FEATURE_INSMOD_LOAD_MAP && !MODPROBE_SMALL | ||
186 | help | ||
187 | Without this option, -m will only output section | ||
188 | load map. With this option, -m will also output | ||
189 | symbols load map. | ||
190 | |||
191 | config FEATURE_CHECK_TAINTED_MODULE | ||
192 | bool "Support tainted module checking with new kernels" | ||
193 | default y | ||
194 | depends on (LSMOD || FEATURE_2_4_MODULES) && !MODPROBE_SMALL | ||
195 | help | ||
196 | Support checking for tainted modules. These are usually binary | ||
197 | only modules that will make the linux-kernel list ignore your | ||
198 | support request. | ||
199 | This option is required to support GPLONLY modules. | ||
200 | |||
201 | config FEATURE_MODUTILS_ALIAS | ||
202 | bool "Support for module.aliases file" | ||
203 | default y | ||
204 | depends on DEPMOD || MODPROBE | ||
205 | help | ||
206 | Generate and parse modules.alias containing aliases for bus | ||
207 | identifiers: | ||
208 | alias pcmcia:m*c*f03fn*pfn*pa*pb*pc*pd* parport_cs | ||
209 | |||
210 | and aliases for logical modules names e.g.: | ||
211 | alias padlock_aes aes | ||
212 | alias aes_i586 aes | ||
213 | alias aes_generic aes | ||
214 | |||
215 | Say Y if unsure. | ||
216 | |||
217 | config FEATURE_MODUTILS_SYMBOLS | ||
218 | bool "Support for module.symbols file" | ||
219 | default y | ||
220 | depends on DEPMOD || MODPROBE | ||
221 | help | ||
222 | Generate and parse modules.symbols containing aliases for | ||
223 | symbol_request() kernel calls, such as: | ||
224 | alias symbol:usb_sg_init usbcore | ||
225 | |||
226 | Say Y if unsure. | ||
227 | |||
228 | config DEFAULT_MODULES_DIR | ||
229 | string "Default directory containing modules" | ||
230 | default "/lib/modules" | ||
231 | depends on DEPMOD || MODPROBE || MODPROBE_SMALL || MODINFO | ||
232 | help | ||
233 | Directory that contains kernel modules. | ||
234 | Defaults to "/lib/modules" | ||
235 | |||
236 | config DEFAULT_DEPMOD_FILE | ||
237 | string "Default name of modules.dep" | ||
238 | default "modules.dep" | ||
239 | depends on DEPMOD || MODPROBE || MODPROBE_SMALL || MODINFO | ||
240 | help | ||
241 | Filename that contains kernel modules dependencies. | ||
242 | Defaults to "modules.dep" | ||
243 | |||
244 | endmenu |