blob: d125122f45a0784dd8e09f3d2378f51a35fe28fa [file] [log] [blame]
Lucas De Marchibf89f762011-12-01 18:23:47 -02001Features:
Lucas De Marchi5e690c52011-12-16 02:02:58 -02002=========
Lucas De Marchibf89f762011-12-01 18:23:47 -02003
Lucas De Marchi80e54cb2012-02-22 13:07:13 -02004* testsuite:
Lucas De Marchi80e54cb2012-02-22 13:07:13 -02005 - when fake delete_module() succeeds, remove its entry from /sys/module
Lucas De Marchibf89f762011-12-01 18:23:47 -02006
Lucas De Marchic8c956b2012-06-11 12:00:19 -03007* review API, maybe unify all of these getters:
Gustavo Sverzut Barbieri674f8592011-12-20 11:54:53 -02008 - kmod_module_version_get_symbol()
9 - kmod_module_version_get_crc()
10 - kmod_module_symbol_get_symbol()
11 - kmod_module_symbol_get_crc()
12 - kmod_module_dependency_symbol_get_symbol()
13 - kmod_module_dependency_symbol_get_crc()
14 - kmod_module_versions_free_list()
15 - kmod_module_symbols_free_list()
Lucas De Marchic8c956b2012-06-11 12:00:19 -030016 - kmod_module_dependency_symbols_free_list(
17
18 Main reason for this is that they need to open and read the module to get
19 this information. If module is compressed, that means uncompressing +
20 allocating necessary space + deallocating for each of them. depmod uses most
21 of these functions and in the end it uncompresses the module ~6x times more
22 than needed, which makes depmod very slow if compared to module-init-tools.
23
24 We might want to either cache the elf file within kmod_module or create
25 another struct that the user ref()/unref().
Gustavo Sverzut Barbieri674f8592011-12-20 11:54:53 -020026
Lucas De Marchia41b39f2012-01-20 13:04:43 -020027* Stop using system() inside the library and use fork + exec instead
28
Lucas De Marchi80e54cb2012-02-22 13:07:13 -020029* config: configs that do not need to be matched by fnmatch() could be using a
30 vector instead of a list. This way we could search in it by calling
31 bsearch().
Lucas De Marchi9207df72012-02-14 21:57:35 -020032
Lucas De Marchi80e54cb2012-02-22 13:07:13 -020033* index: drop the "open(), seek(), read()" implementation and use another one
34 with mmap(). When lookup() is called and the file is not mmaped, mmap it.
Lucas De Marchi5e690c52011-12-16 02:02:58 -020035
Lucas De Marchi94618932012-04-16 20:20:48 -030036* Implement actions in kmod tool like 'insert', 'remove', 'info', etc
37
Lucas De Marchi3af535c2011-12-27 17:32:55 -020038Things to be added/removed in kernel (check what is really needed):
Lucas De Marchi5e690c52011-12-16 02:02:58 -020039===================================================================
40
41* list of currently loaded modules
Lucas De Marchi80e54cb2012-02-22 13:07:13 -020042 - readdir() in /sys/modules: dir without a 'initstate' file means the
43 module is builtin.
Lucas De Marchi5e690c52011-12-16 02:02:58 -020044
45* module's size should be available under /sys
Lucas De Marchi758428a2012-01-16 15:56:17 -020046 - DONE in 3.3: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commit;h=cca3e707301862ca9b9327e6a732463982f8cd1b
Lucas De Marchi5e690c52011-12-16 02:02:58 -020047
48* kill /proc/modules ?
Lucas De Marchi758428a2012-01-16 15:56:17 -020049 - Unlikely, given other tools might depend on it
Lucas De Marchi5a96c5f2012-01-01 05:47:17 -020050
51Things that are different from module-init-tools on purpose (!TODO)
52===================================================================
53
54modprobe
55--------
56
57* 'modprobe -l' was marked as deprecated and does not exist anymore
58
59* 'modprobe -t' is gone, together with 'modprobe -l'
60
Lucas De Marchi80e54cb2012-02-22 13:07:13 -020061* there's and additional '--remove-dependencies' flags to modprobe so we
Lucas De Marchi5a96c5f2012-01-01 05:47:17 -020062 can remove modules depending on that one
63
Lucas De Marchi80e54cb2012-02-22 13:07:13 -020064* modprobe doesn't parse configuration files with names not ending in
65 '.alias' or '.conf'. modprobe used to warn about these files.
Lucas De Marchi5a96c5f2012-01-01 05:47:17 -020066
Lucas De Marchi80e54cb2012-02-22 13:07:13 -020067* modprobe doesn't parse 'config' and 'include' commands in configuration
Lucas De Marchi0ad5dd02012-01-11 00:28:12 -020068 files.
69
Lucas De Marchif5643942012-01-12 14:45:11 -020070* modprobe from m-i-t does not honour softdeps for install commands. E.g.:
71 config:
72
73 install bli "echo bli"
74 install bla "echo bla"
75 softdep bla pre: bli
76
77 With m-i-t, the output of 'modprobe --show-depends bla' will be:
78 install "echo bla"
79
80 While with kmod:
81 install "echo bli"
82 install "echo bla"
83
Lucas De Marchibc434962012-01-13 02:35:34 -020084* kmod doesn't dump the configuration as is in the config files. Instead it
85 dumps the configuration as it was parsed. Therefore, comments and file names
86 are not dumped, but on the good side we know what the exact configuration
87 kmod is using. We did this because if we only want to know the entire content
88 of configuration files, it's enough to use find(1) in modprobe.d directories
89
Lucas De Marchi5a96c5f2012-01-01 05:47:17 -020090depmod
91------
92
93* there's no 'depmod -m' option: legacy modules.*map files are gone
Lucas De Marchie85b6732012-01-12 15:28:19 -020094
95lsmod
96-----
97
98* information is parsed from /sys instead of /proc/modules