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| author | Denys Vlasenko <vda.linux@googlemail.com> | 2010-06-04 20:10:51 +0200 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2010-06-04 20:10:51 +0200 |
| commit | da929a95aace0e79fbc621af2ab03c76d74d5fcb (patch) | |
| tree | 2b7dd63658eef78fde7604772d9815283c2c1cdf /modutils/Config.src | |
| parent | e4070cb0d7586037c6fcf0f0f00d8d5b97f649d3 (diff) | |
| download | busybox-w32-da929a95aace0e79fbc621af2ab03c76d74d5fcb.tar.gz busybox-w32-da929a95aace0e79fbc621af2ab03c76d74d5fcb.tar.bz2 busybox-w32-da929a95aace0e79fbc621af2ab03c76d74d5fcb.zip | |
mass renaming Kbuild -> Kbuild.src, Config.in -> Config.src
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'modutils/Config.src')
| -rw-r--r-- | modutils/Config.src | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/modutils/Config.src b/modutils/Config.src new file mode 100644 index 000000000..83c12b67f --- /dev/null +++ b/modutils/Config.src | |||
| @@ -0,0 +1,242 @@ | |||
| 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 | ||
