Commit graph

31 commits

Author SHA1 Message Date
Tobias Geerinckx-Rice 47e265af75
linux-modules: Fix module dependency loading.
* gnu/build/linux-modules.scm (dot-ko): Make COMPRESSION optional,
as expected by callers RECURSIVE-MODULE-DEPENDENCIES and
LOAD-LINUX-MODULE*.
2023-10-15 02:00:00 +02:00
Ludovic Courtès afbd4d8470
linux-modules: Add 'load-pci-device-database'.
* gnu/build/linux-modules.scm (read-pci-device-database)
(load-pci-device-database): New procedures.
2022-11-15 12:16:43 +01:00
Ludovic Courtès 655fb8feac
linux-modules: Add support for listing PCI devices.
* gnu/build/linux-modules.scm (<pci-device>): New record type.
(pci-device-class-predicate, storage-pci-device?, network-pci-device?)
(display-pci-device?, pci-devices?): New procedures.
2022-11-15 12:16:42 +01:00
Tobias Geerinckx-Rice via Guix-patches via 13f1355443
linux-modules: Ignore EINVAL in ‘modprobe’ mode.
Loading the framebuffer-coreboot module simply fails with EINVAL on a
non-Corebooted system.  Crashing the system with a kernel panic is not
a reasonable reaction to loading valid modules on unsupported hardware.
The kernel should log an error, which the user is expected to see.

Bogus module names will still be fatally reported by linux-modules.drv.

* gnu/build/linux-modules.scm (load-linux-module*):
Ignore EINVAL errors when operating recursively.
2021-12-16 12:53:52 -05:00
Mathieu Othacehe 755f365b02
linux-libre: Support module compression.
This commit adds support for GZIP compression for linux-libre kernel
modules. The initrd modules are kept uncompressed as the initrd is already
compressed as a whole.

The linux-libre kernel also supports XZ compression, but as Guix does not have
any available bindings for now, and the compression time is far more
significant, GZIP seems to be a better option.

* gnu/build/linux-modules.scm (modinfo-section-contents): Use
'call-with-gzip-input-port' to read from a module file using '.gz' extension,
(strip-extension): new procedure,
(dot-ko): adapt to support compression,
(ensure-dot-ko): ditto,
(file-name->module-name): ditto,
(find-module-file): ditto,
(load-linux-module*): ditto,
(module-name->file-name/guess): ditto,
(module-name-lookup): ditto,
(write-module-name-database): ditto,
(write-module-alias-database): ditto,
(write-module-device-database): ditto.
* gnu/installer.scm (installer-program): Add "guile-zlib" to the extensions.
* gnu/machine/ssh.scm (machine-check-initrd-modules): Ditto.
* gnu/services.scm (activation-script): Ditto.
* gnu/services/base.scm (default-serial-port): Ditto,
(agetty-shepherd-service): ditto,
(udev-service-type): ditto.
* gnu/system/image.scm (gcrypt-sqlite3&co): Ditto.
* gnu/system/linux-initrd.scm (flat-linux-module-directory): Add "guile-zlib"
to the extensions and make sure that the initrd only contains
uncompressed module files.
* gnu/system/shadow.scm (account-shepherd-service): Add "guile-zlib" to the
extensions.
* guix/profiles.scm (linux-module-database): Ditto.
2020-08-25 11:53:20 +02:00
Danny Milosavljevic 5c79f23863
system: Add kernel-loadable-modules to operating-system.
* gnu/system.scm (<operating-system>): Add kernel-loadable-modules.
(operating-system-directory-base-entries): Use it.
* doc/guix.texi (operating-system Reference): Document
KERNEL-LOADABLE-MODULES.
* gnu/build/linux-modules.scm (depmod): New procedure.
(make-linux-module-directory): New procedure.  Export it.
* guix/profiles.scm (linux-module-database): New procedure.  Export it.
* gnu/tests/linux-modules.scm: New file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add it.
* gnu/packages/linux.scm (make-linux-libre*)[arguments]<#:phases>[install]:
Disable depmod.  Remove "build" and "source" symlinks.
[native-inputs]: Remove kmod.
2020-03-22 12:51:50 +01:00
Ludovic Courtès c85ccf60bf
linux-modules: Define and use a module name database.
Fixes <https://bugs.gnu.org/34902>.
Reported by Julien Lepiller <julien@lepiller.eu>.

* gnu/build/linux-modules.scm (module-formal-name): New procedure.
(load-linux-modules-from-directory)[lookup-module]: Remove.
[module-name->file-name]: New variable.  Use it.
(module-name->file-name/guess, module-name-lookup)
(write-module-name-database): New procedures.
* gnu/system/linux-initrd.scm (flat-linux-module-directory): Call
'write-module-name-database'.
2019-08-16 23:00:27 +02:00
Ludovic Courtès e1a9a7f275
linux-modules: Add 'load-linux-modules-from-directory'.
* gnu/build/linux-modules.scm (load-linux-modules-from-directory): New
procedure.
* gnu/build/linux-boot.scm (boot-system)[lookup-module]: Remove.
Use 'load-linux-modules-from-directory' instead.
2019-08-16 23:00:27 +02:00
Ludovic Courtès 2a693b69ca
linux-modules: Add "modules.devname" writer.
* gnu/build/linux-modules.scm (aliases->device-tuple)
(write-module-device-database): New procedures.
(%not-dash): New variable.

Co-authored-by: Danny Milosavljevic <dannym@scratchpost.org>.
2019-08-16 23:00:27 +02:00
Danny Milosavljevic 4f8b9d1a6f
linux-modules: Add "modules.alias" writer.
* gnu/build/linux-modules.scm (write-module-alias-database): New
procedure.

Co-authored-by: Ludovic Courtès <ludo@gnu.org>
2019-08-16 23:00:27 +02:00
Ludovic Courtès 4cd386afae
linux-modules: Factorize 'missing-modules'.
* gnu/build/linux-modules.scm (missing-modules): New procedure.
* gnu/system/mapped-devices.scm (check-device-initrd-modules): Use it.
2019-03-13 23:12:43 +01:00
Danny Milosavljevic f347fb79df
linux-modules: module-soft-dependencies: Partition the result and return it as two lists.
* gnu/build/linux-modules.scm (module-soft-dependencies): Partition the
result and return it as two lists.
2019-03-05 13:43:34 +01:00
Danny Milosavljevic 519be98c35
linux-modules: module-soft-dependencies: Remove colon from section names.
Follow-up to 1a5f46621b.

* gnu/build/linux-modules.scm (module-soft-dependencies): Remove colon from
section names.
2019-01-25 18:24:00 +01:00
Danny Milosavljevic 1a5f46621b
linux-modules: Add module-soft-dependencies.
* gnu/build/linux-modules.scm (not-softdep-whitespace): New variable.
(module-soft-dependencies): New procedure.
2019-01-25 18:14:16 +01:00
Ludovic Courtès 4db7a9dc66
linux-modules: Raise an error when a kernel module cannot be found.
Previously we'd get an unhelpful backtrace like this:

  In gnu/build/linux-modules.scm:
     184:47  4 (recursive-module-dependencies _ #:lookup-module _)
      98:14  3 (module-dependencies _)
      85:18  2 (modinfo-section-contents _)
  In ice-9/ports.scm:
     439:11  1 (call-with-input-file #f #<procedure get-bytevector-al?> ?)
  In unknown file:
	     0 (open-file #f "r" #:encoding #f #:guess-encoding #f)

  ERROR: In procedure open-file:
  Wrong type (expecting string): #f
  builder for `/gnu/store/…-linux-modules.drv' failed with exit code 1

* gnu/build/linux-modules.scm (find-module-file): When MODULE cannot be
found, raise an error instead of returning #f.  This is more useful to
the user.
2018-08-29 23:32:01 +02:00
Ludovic Courtès f43d2dcd80
linux-modules: Adjust 'section-contents' procedure.
* gnu/build/linux-modules.scm (section-contents): Honor SECTION as was
intended.
(modinfo-section-contents): Pass 'section-contents' a section, not a
section name.
2018-08-21 23:27:08 +02:00
Ludovic Courtès fcd068e984
linux-initrd: Try several file names when looking up modules.
Fixes <https://bugs.gnu.org/31714>.
Reported by Tonton <tonton@riseup.net>.

* gnu/build/linux-modules.scm (find-module-file): New procedure.
* gnu/system/linux-initrd.scm (flat-linux-module-directory)[build-exp]:
Remove 'lookup' procedure and use 'find-module-file' instead.
* gnu/system/mapped-devices.scm (check-device-initrd-modules): Add
comment.
2018-07-29 18:50:28 +02:00
Ludovic Courtès d2a1cf45f7
linux-initrd: Improve check of initrd modules.
Previously we would not strip the ".ko" suffix if present.

* gnu/build/linux-modules.scm (file-name->module-name): Export.
* gnu/system/mapped-devices.scm (check-device-initrd-modules): Use
'file-name->module-name' instead of 'normalize-module-name'.
2018-07-29 18:50:28 +02:00
Ludovic Courtès 411959bef3
linux-initrd: Module check correctly handles hyphen vs. underscore.
Fixes <https://bugs.gnu.org/31714>.
Reported by Vagrant Cascadian <vagrant@debian.org>
and Florian Pelz <pelzflorian@pelzflorian.de>.

* gnu/system/mapped-devices.scm (check-device-initrd-modules): Pass
LINUX-MODULES through 'normalize-module-name'.
* gnu/build/linux-modules.scm (normalize-module-name): Export.
2018-06-14 23:34:59 +02:00
Ludovic Courtès 71e08fde28
glob: Add an extra glob pattern compilation stage.
* guix/glob.scm (compile-glob-pattern): Rename to...
(string->sglob): ... this.
(compile-sglob, string->compiled-sglob): New procedures.
(glob-match?): Replace '?, 'range, and 'set with a single clause.
* tests/glob.scm (test-compile-glob-pattern): Rename to...
(test-string->sglob): ... this.  Adjust accordingly.
(test-glob-match): Use 'string->compiled-sglob' instead of
'compile-glob-pattern'.
* gnu/build/linux-modules.scm (read-module-aliases): Use
'string->compiled-sglob' instead of 'compile-glob-pattern'.
2018-03-18 22:57:17 +01:00
Ludovic Courtès 675e81a082
linux-modules: 'load-linux-module*' honors BLACK-LIST in recursive calls.
* gnu/build/linux-modules.scm (load-linux-module*): Pass BLACK-LIST in
recursive call.
2018-03-18 22:35:27 +01:00
Ludovic Courtès a57df67b59
linux-modules: Add 'current-kernel-directory'.
* gnu/build/linux-modules.scm (current-kernel-directory): New procedure.
(current-alias-file): Use it.
2018-03-18 22:35:03 +01:00
Danny Milosavljevic 8b2219d847
linux-modules: Add module-aliases.
* gnu/build/linux-modules.scm (module-aliases): New variable.
2018-03-03 23:40:02 +01:00
Ludovic Courtès 8661ad2743
linux-modules: Add 'device-module-aliases' and related procedures.
* gnu/build/linux-modules.scm (readlink*, stat->device-major)
(stat->device-minor): New procedures.
(%not-slash): New variable.
(read-uevent, device-module-aliases, read-module-aliases)
(current-alias-file, known-module-aliases, matching-modules): New
procedures.
2018-03-02 13:46:33 +01:00
Ludovic Courtès 3c14e7e6bb
linux-modules: Use 'load-linux-module/fd'.
This should be more efficient than loading the whole thing in user space.

* gnu/build/linux-modules.scm (load-linux-module*): Use
'load-linux-module/fd' instead of 'load-linux-module'.  Remove 'slurp'.
2018-02-28 22:47:48 +01:00
Mathieu Othacehe a5e13c3be9
build: Fix compilation warnings.
* gnu/build/linux-boot.scm (define-module): Use (guix build syscalls).
* gnu/build/linux-modules.scm (define-module): Ditto.
* gnu/build/file-systems (define-module): Stop re-exporting mount, umount and
MS_* flags as this is now safe to include (guix build syscalls) instead.
(mount): Remove procedure.
(umount): Ditto.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2017-04-11 11:13:26 +02:00
Ludovic Courtès 5c7dd5ac3a linux-modules: Use normalized module names for 'modprobe.blacklist'.
* gnu/build/linux-modules.scm (normalize-module-name): New procedure.
(file-name->module-name): Use it.
(module-black-list): Expound docstring.
2016-02-21 13:04:10 +01:00
Ludovic Courtès 7ba903b6db linux-modules: Support 'modprobe.blacklist' on the command line.
* gnu/build/linux-modules.scm (file-name->module-name)
(module-black-list): New procedure.
* gnu/build/linux-modules.scm (load-linux-module*): Add #:black-list
parameter.
[black-listed?, load-dependencies]: New procedures.
Use them.
2016-01-16 14:45:47 +01:00
Ludovic Courtès fb74174958 linux-boot: Remove verbose output for module loads.
* gnu/build/linux-boot.scm (boot-system): Leave
'current-module-debugging-port' unchanged.
* gnu/build/linux-modules.scm (load-linux-module*): Update comment about
'mmap'.
2016-01-05 00:28:42 +01:00
Ludovic Courtès 7c4885f0d7 linux-modules: Correctly propagate error code from 'init_module'.
* gnu/packages/patches/guile-linux-syscalls.patch (scm_load_linux_module):
  Leave 'errno' unchanged when ERR != 0.
* gnu/build/linux-modules.scm (load-linux-module*): Check for the errno
  value of ARGS to determine whether the module was already loaded.
2014-11-28 15:08:56 +01:00
Ludovic Courtès fcaa5f44a1 system: Add (gnu build linux-modules).
* gnu/build/linux-modules.scm: New file.
* gnu-system.am (GNU_SYSTEM_MODULES): Add it.
2014-11-28 00:10:28 +01:00