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16 commits

Author SHA1 Message Date
Steve Muckle
8bafa9e28e add libmodprobe api to query the number of modules loaded 
In the short term this will be used to help implement support for
multiple kernel module directories but it may be useful in other
contexts as well.

Bug: 157645635
Change-Id: I15a252b6e9394292c8f3557ed65112c935830441
Merged-In: I15a252b6e9394292c8f3557ed65112c935830441
 2020-06-03 12:11:15 -07:00
Steve Muckle
ae317c716b first_stage_init: load modules in modules.load.recovery in recovery 
In recovery mode, load modules from modules.load.recovery if it
exists. Otherwise load from modules.load as usual.

Bug: 150825361
Change-Id: I7636bb5958ed10ae9a66015f04f168129618272f
Merged-In: I7636bb5958ed10ae9a66015f04f168129618272f
 2020-04-08 10:49:13 -07:00
Steve Muckle
373a3cadd7 libmodprobe: parse kernel command line for module options 
Bug: 145808811
Test: atest libmodprobe_tests, verify on flame
Change-Id: I0b41b1610fe13ae526d38f029da888f6f0d8a02d
 2019-12-27 13:39:23 -08:00
Mark Salyzyn
d478271b2b libmodprobe: add strict bool argument to LoadListedModules 
Continue loading remaining modules after error if strict flag false.

Test: libmodprobe_test
Bug: 141311820
Change-Id: Ib21d4eade1254b16621e7bf2c9efaa173092e7c7
 2019-10-31 10:30:35 -07:00
Mark Salyzyn
8c1051918e libmodprobe: Do not reload modules previously instantiated 
For modprobe operation.

For an interlocking driver set of about 50 modules, the impact of
their dependencies resulted in a 30 second impact in boot time
trying to load previously loaded modules. This impact is handily
eliminated by keeping a list of modules paths that have been loaded
and skipping them proactively.

Test: Confirmed device boot and 50 module set of drivers functions.
Test: libmodprobe_tests
Bug: 142938937
Bug: 140827934
Change-Id: Iccd11399d6043b38cbd5f93578ee202022e7770c
 2019-10-30 07:20:18 -07:00
Treehugger Robot
b02f9b549c Merge changes from topic "toolbox-modprobe" 
* changes:
  toolbox: add modprobe
  libmodprobe: add verbose mode
  libmodprobe: add GetAllDependencies
  libmodprobe: add support to list modules
  libmodprobe: add support for a blacklist
  libmodprobe: support parameters in LoadWithAliases
  libmodprobe: add support to remove modules
  libmodprobe: make name canonical in LoadWithAliases
  libmodprobe: make available in vendor
 2019-08-07 17:09:09 +00:00
Steve Muckle
ded44c06be libmodprobe: add verbose mode 
Change-Id: I2be18320461cd712a4828400b8f29bb5f07c801f
 2019-08-06 13:58:13 -07:00
Steve Muckle
781aa78ee2 libmodprobe: add GetAllDependencies 
Add a method to retrieve the dependencies (both hard and soft) of a
module.

Change-Id: Ie44ceb3e36856bb1a3e68c5d3c0d55a38deb0ef9
 2019-08-06 13:58:13 -07:00
Steve Muckle
012cfa19b0 libmodprobe: add support to list modules 
List the known modules with a name matching a given pattern.

Change-Id: I7f6bd1f09a688c66682f94c5837e61d7dc61c1f7
 2019-08-06 13:58:13 -07:00
Steve Muckle
e31f840a0a libmodprobe: add support for a blacklist 
If the blacklist is enabled, blacklisted modules are treated as though
they are not present.

Change-Id: Ie8712f24298e78f92d5028b1ca3a8a3e07a9190a
 2019-08-06 13:58:13 -07:00
Steve Muckle
13700a69d3 libmodprobe: support parameters in LoadWithAliases 
Add support to specify module parameters in LoadWithAliases. These
parameters will be appended to any which are specified for the module in
modules.options.

Change-Id: I9aff1656ea397826f815b658b3b52c1892748601
 2019-08-06 13:58:13 -07:00
Steve Muckle
bb58b01574 libmodprobe: add support to remove modules 
Add a remove method which will unload a given module from the kernel,
along with any modules it depended on, assuming those modules are now
unused.

Change-Id: Ie66dc153ef1771f50e26421d38d3656e95954780
 2019-08-06 13:58:13 -07:00
Steve Muckle
73b2928b94 libmodprobe: make name canonical in LoadWithAliases 
Make the module name canonical in LoadWithAliases so it may be used
more easily from outside the class.

Change-Id: I7ee496b77a2beea43a6b68daed7af42660747559
 2019-08-06 13:58:13 -07:00
Steve Muckle
4104b8803a libmodprobe: make available in vendor 
A toolbox implementation of modprobe will require libmodprobe.

Change-Id: I7790576b828ad8cd5fae0c51926d8da9fb540d30
 2019-08-06 13:58:13 -07:00
Steve Muckle
025cad4269 libmodprobe: add OWNERS file 
Change-Id: I812c0420d982d2c927f40ca43545bdd15bc7b8be
 2019-08-05 11:29:01 -07:00
Steve Muckle
18b981ea7c create libmodprobe, integrate into first_stage_init 
Modprobe functionality is required both within first stage init and also
as a standalone binary. Create a library for this using and extending
the logic in modalias_handler.cpp.

First stage init will attempt to load modules from /lib/modules.

Bug: 129780532
Change-Id: Ie3582358fd839c2f64e1b386b30ed551a86aef5d
 2019-06-18 13:24:56 -07:00