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path: root/modutils/modutils.c
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2020-12-14libbb: create and use mmap() helpersDenys Vlasenko
function old new delta mmap_anon - 22 +22 mmap_read - 21 +21 xmmap_anon - 16 +16 rpm_gettags 465 447 -18 bb_full_fd_action 498 480 -18 uevent_main 337 310 -27 ------------------------------------------------------------------------------ (add/remove: 3/0 grow/shrink: 0/3 up/down: 59/-63) Total: -4 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-06-28modutils: delete unused replace_underscores()Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-02-01cmdline module options can be disabled on "big" modutilsKang-Che Sung
Allow module options on command line to be disabled on "big" modutils. Config FEATURE_MODPROBE_SMALL_OPTIONS_ON_CMDLINE is renamed to FEATURE_CMDLINE_MODULE_OPTIONS and no longer depends on !MODPROBE_SMALL (I'm not sure if disabling this is useful on "big" modutils, but at least the macro can serve as a marker and ensure both implementations of same feature have consistent behavior.) Signed-off-by: Kang-Che Sung <explorer09@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-01-04modutils: remove special handling of uClibcWaldemar Brodkorb
Commit 3a45b87ac36f (modutils: support finit_module syscall) introduced macro finit_module. But it is not defined for uClibc. The compilation for busybox fails for MIPS with: With uClibc, we get following build errors: modutils/lib.a(modutils.o): In function `bb_init_module': modutils.c:(.text.bb_init_module+0x94): undefined reference to `finit_module' modutils.c:(.text.bb_init_module+0xa0): undefined reference to `finit_module' We can just use syscall() without any need for the uClibc wrappers. Newer versions of uClibc-ng (>1.0.20) will remove the module syscall wrappers. Found via Buildroot autobuilders: http://autobuild.buildroot.net/results/556/55655daef23788fb3967f801ec8b79e9bed7122b/build-end.log function old new delta bb_delete_module 26 32 +6 bb_init_module 90 95 +5 delete_module 37 - -37 init_module 53 - -53 ------------------------------------------------------------------------------ (add/remove: 0/4 grow/shrink: 2/0 up/down: 11/-90) Total: -79 bytes Reported-by: Rahul Bedarkar <rahul.bedarkar@imgtec.com> Signed-off-by: Waldemar Brodkorb <wbx@openadk.org> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-09-15modutils: support finit_module syscallMike Frysinger
On some systems like Chromium OS, loading modules from non-verified filesystems is denied. Only finit_module is allowed because an open fd is passed which can be checked against a verified location. Change the module loading code to first attempt finit_module and if that fails for whatever reason, fall back to the existing logic. On x86_64, this adds ~80 bytes to modutils/modutils.o and ~68 bytes to modutils/modprobe-small.o. Signed-off-by: Mike Frysinger <vapier@chromium.org> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-11-06modutils: fix build error with !DEPMODDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-11-05modutils: merge module_entry and module_info to commonTimo Teräs
This merges the in-memory module info structures of modprobe and depmod. This allows sharing hashing by modulename code improving depmod runtime with almost factor of 2x. function old new delta get_or_add_modentry - 17 +17 do_modprobe 590 601 +11 moddb_get_or_create - 10 +10 load_modules_dep 195 205 +10 moddb_get - 7 +7 add_probe 81 78 -3 modprobe_main 721 714 -7 depmod_main 553 543 -10 config_file_action 434 421 -13 helper_get_module 160 144 -16 parse_module 343 320 -23 order_dep_list 105 82 -23 ------------------------------------------------------------------------------ (add/remove: 3/0 grow/shrink: 2/7 up/down: 55/-95) Total: -40 bytes Signed-off-by: Timo Teräs <timo.teras@iki.fi> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-10-24rmmod: fix bad error messageDenys Vlasenko
Before: ># busybox_old rmmod gtrhfhdfghdf rmmod: can't unload 'gtrhfhdfghdf': unknown symbol in module, or unknown parameter After: ># busybox rmmod gtrhfhdfghdf rmmod: can't unload module 'gtrhfhdfghdf': No such file or directory function old new delta modprobe_main 726 721 -5 do_modprobe 599 590 -9 rmmod_main 187 169 -18 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-32) Total: -32 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-01-24depmod: simple memory optimizationDenys Vlasenko
function old new delta filename2modname 67 86 +19 parse_module 374 351 -23 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-01-01modprobe: revert checking for /, stop doing basename() on modprobe argsDenys Vlasenko
function old new delta process_module 726 719 -7 filename2modname 81 67 -14 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-21) Total: -21 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-02-02modprobe/insmod: fix parameter quotingDenys Vlasenko
function old new delta parse_cmdline_module_options 102 157 +55 modprobe_main 657 662 +5 insmod_main 68 70 +2 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/0 up/down: 62/0) Total: 62 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-02-01revert commit 1396221d5a741ef8e1e8abca88836b341a3cab84Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-08-25modutils: explain why we no longer quote paramsDenys Vlasenko
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2010-08-25insmod: Do not add a pair of "" around the arguments of the module.Carmelo AMOROSO
If there are some spaces in the insmod command line, then this will be splitted in single words as separate elements of argv. It just needs to chain them together in the options string passed to the sys_init_module syscall. Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com> Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2010-08-16*: make GNU licensing statement forms more regularDenys Vlasenko
This change retains "or later" state! No licensing _changes_ here, only form is adjusted (article, space between "GPL" and "v2" and so on). Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-10-25modutils: add FEATURE_INSMOD_TRY_MMAP optionDenys Vlasenko
function old new delta try_to_mmap_module - 121 +121 bb_init_module_24 4514 4578 +64 bb_init_module 119 173 +54 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 2/0 up/down: 239/0) Total: 239 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-06-17modprobe: correct exitcode handling and error messages with respect to -qDenys Vlasenko
function old new delta do_modprobe 319 339 +20 bb_delete_module 10 26 +16 moderror 62 71 +9 bb_init_module 112 119 +7 modprobe_main 488 494 +6 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 5/0 up/down: 58/0) Total: 58 bytes Signed-off-by: Gilles Espinasse <g.esp@free.fr> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-05-18depmod: fix handling of .gz modulesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-04-13move llist_find_str from modutils to libbbDenis Vlasenko
2009-04-13modutils: remove redundant sanitizationDenis Vlasenko
2009-03-29modutils: dont pass NULL options to init_module()Denis Vlasenko
2009-03-13insmod/modprobe: do not pass NULL to kernel as module parameterDenis Vlasenko
2009-03-05modutils: delete unused global variableDenis Vlasenko
function old new delta modprobe_main 570 567 -3 insmod_main 101 98 -3 insmod_outputname 4 - -4 ------------------------------------------------------------------------------ (add/remove: 0/1 grow/shrink: 0/2 up/down: 0/-10) Total: -10 bytes text data bss dec hex filename 816784 476 7892 825152 c9740 busybox_old 816778 476 7888 825142 c9736 busybox_unstripped
2009-02-26modutils: oveflow fixDenis Vlasenko
2008-11-06*: remove superfluous casts. no code changesDenis Vlasenko
2008-10-31modprobe: fix a segfault when modprobe is called with no arguments at allDenis Vlasenko
function old new delta modprobe_main 559 535 -24
2008-09-13modutils/*: rewrite by Timo Teras <timo.teras AT iki.fi>Denis Vlasenko
- a lot faster (linear algorithmic complexity, smaller memory foot print) - a lot smaller (the old code was overly complicated) - loading of aliases is now module-init-tools compliant - blacklisting is done correctly (-b option added) - module argument quoting done right - depmod now correctly generates modules.symbols and modules.alias add/remove: 16/21 grow/shrink: 4/6 up/down: 6930/-9316 Total: -2386 bytes text data bss dec hex filename 806039 592 6680 813311 c68ff busybox_old 803498 592 6676 810766 c5f0e busybox_unstripped
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