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* linuxkpi: Provide a non-NULL value for THIS_MODULEAustin Shafer6 days1-0/+14
| | | | | | | | | | | | | | | | | | | THIS_MODULE is used to differentiate modules on Linux. We currently completely stub out any Linux struct module usage, but THIS_MODULE is still used to populate the "owner" fields of various drivers. Even though we don't actually dereference these "owner" fields they are still used by drivers to check if devices/dmabufs/etc come from different modules. For example, during DRM GEM import some drivers check if the dmabuf's owner matches the dev's owner. If they match because they are both NULL drivers may incorrectly think two resources come from the same module. This adds a general purpose __this_linker_file which will point to the linker file of the module that uses it. We can then use that pointer to have a valid value for THIS_MODULE. Reviewed by: bz, jhb Differential Revision: https://reviews.freebsd.org/D44306
* kern linker: Don't invoke dtors without having invoked ctorsMark Johnston2024-03-311-0/+1
| | | | | | | | | | | | | | | | | | | I have a kernel module which fails to load because of an unrecognized relocation type. link_elf_load_file() fails before the module's ctors are invoked and it calls linker_file_unload(), which causes the module's dtors to be executed, resulting in a kernel panic. Add a flag to the linker file to ensure that dtors are not invoked if unloading due to an error prior to ctors being invoked. At the moment I only implemented this for link_elf_obj.c since link_elf.c doesn't invoke dtors, but I refactored link_elf.c to make them more similar. Fixes: 9e575fadf491 ("link_elf_obj: Invoke fini callbacks") Reviewed by: zlei, kib MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D44559
* kern linker: Make linker_file_add_dependency() voidZhenlei Huang2024-03-271-22/+8
| | | | | | | | | | The only possible return value has been zero since cee9542d51f0. No functional change intended. Reviewed by: dfr MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D44507
* kern linker: Do not touch userrefs of the kernel fileZhenlei Huang2024-03-261-0/+3
| | | | | | | | | | | | | | | A nonzero `userrefs` of a linker file indicates that the file, either loaded from kldload(2) or preloaded, can be unloaded via kldunload(2). As for the kernel file, it can be unloaded by the loader but should not be after initialization. This change fixes regression from d9ce8a41eac9 which incidentally increases `userrefs` of the kernel file. Reviewed by: dfr, dab, jhb Fixes: d9ce8a41eac9 kern_linker: Handle module-loading failures in preloaded .ko files MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D42530
* kern linker: Do not unload a module if it has dependantsZhenlei Huang2024-03-261-0/+2
| | | | | | | | | | | | Despite the name, linker_file_unload() will drop a reference and return success when the module file has dependants, i.e. it has more than one reference. When user request to unload such modules then the kernel should reject unambiguously and immediately. PR: 274986 Reviewed by: dfr, dab, jhb MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D42527
* ddb: Add CTF-based pretty printingBojan Novković2024-03-221-1/+67
| | | | | | | | | | | | | | | | | | | | Add basic CTF support and a CTF-powered pretty-printer to ddb. The db_ctf.* files expose a basic interface for fetching type data for ELF symbols, interacting with the CTF string table, and translating type identifiers to type data. The db_pprint.c file uses those interfaces to implement a pretty-printer for all kernel ELF symbols. The pretty-printer works with symbol names and arbitrary addresses: pprint struct thread 0xffffffff8194ad90 Pretty-printing currently only works after the root filesystem gets mounted because the CTF info is not available during early boot. Differential Revision: https://reviews.freebsd.org/D37899 Approved by: markj (mentor)
* kern linker: Do not retry loading modules on EEXISTZhenlei Huang2023-11-071-1/+4
| | | | | | | | | | | | | LINKER_LOAD_FILE() calls linker_load_dependencies() which will return EEXIST in case the module to be loaded has already been compiled into the kernel. Since the format of the module is now recognized then there is no need to retry loading with a different linker, otherwise the userland will get misleading error number ENOEXEC. PR: 274936 Reviewed by: dfr MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D42474
* sysctl(9): Enable vnet sysctl variables to be loader tunableZhenlei Huang2023-09-091-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Complete phase two of 3da1cf1e88f8. In 3da1cf1e88f8, the meaning of the flag CTLFLAG_TUN is extended to automatically check if there is a kernel environment variable which shall initialize the SYSCTL during early boot. It works for all SYSCTL types both statically and dynamically created ones, except for the SYSCTLs which belong to VNETs. This change extends the meaning further, to allow it also works for the SYSCTLs which belong to VNETs. A typical usage is ``` VNET_DEFINE_STATIC(int, foo) = 0; SYSCTL_INT(_net, OID_AUTO, foo, CTLFLAG_RWTUN | CTLFLAG_VNET, &VNET_NAME(foo), 0, "Description of the foo loader tunable"); ``` Note that the implementation has a limitation. It behaves the same way as that of non-vnet loader tunables. That is, after the kernel or modules being initialized, any changes (e.g. via kenv) to kernel environment variable will not affect the corresponding vnet variable of subsequently created VNETs. To overcome it, we can use TUNABLE_XXX_FETCH to fetch the kernel environment variable into those vnet variables during vnet constructing. This change will fix the following SYSCTLs those belong to VNETs and have CTLFLAG_TUN flag: ``` net.add_addr_allfibs net.bpf.optimize_writers net.inet.tcp.fastopen.ccache_buckets net.link.bridge.inherit_mac net.link.bridge.ipfw_arp net.link.bridge.log_stp net.link.bridge.pfil_bridge net.link.bridge.pfil_local_phys net.link.bridge.pfil_member net.link.bridge.pfil_onlyip net.link.lagg.default_use_flowid net.link.lagg.default_use_numa net.link.lagg.default_flowid_shift net.link.lagg.lacp.debug net.link.lagg.lacp.default_strict_mode ``` Although the following vnet SYSCTLs have CTLFLAG_TUN flag, theirs values are re-fetched via TUNABLE_XXX_FETCH, thus are not affected by this change. ``` net.inet.ip.reass_hashsize net.inet.tcp.hostcache.cachelimit net.inet.tcp.hostcache.hashsize net.inet.tcp.hostcache.bucketlimit net.inet.tcp.syncache.bucketlimit net.inet.tcp.syncache.cachelimit net.inet.tcp.syncache.hashsize net.key.spdcache.maxentries net.key.spdcache.threshold ``` In memoriam: hselasky Discussed with: hselasky, glebius Fixes: 3da1cf1e88f8 Extend the meaning of the CTLFLAG_TUN flag ... MFC after: 2 weeks Relnotes: yes Differential Revision: https://reviews.freebsd.org/D39638
* sys: Remove $FreeBSD$: one-line .c patternWarner Losh2023-08-161-2/+0
| | | | Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/
* vfs: use __enum_uint8 for vtype and vstateMateusz Guzik2023-07-051-1/+1
| | | | | | This whacks hackery around only reading v_type once. Bump __FreeBSD_version to 1400093
* pmc: Provide full path to modules from kernel linkerJessica Clarke2023-05-301-1/+1
| | | | | | | | | | | | | | | | | This unifies the user object and kernel module paths in libpmcstat, allows modules loaded from non-standard locations (e.g. from a user's home directory when testing) to be found and, since buffer is what all the warnings here use (they were never updated when buffer_modules were added to pick based on where the file was found) has the side-effect of ensuring the messages are correct. This includes obsoleting the now-superfluous -k option in pmcstat. This change breaks the hwpmc ABI and will be followed by a bump to the pmc major version. Reviewed by: jhb, jkoshy, mhorne Differential Revision: https://reviews.freebsd.org/D40048
* spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSDWarner Losh2023-05-121-1/+1
| | | | | | | | | The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch up to that fact and revert to their recommended match of BSD-2-Clause. Discussed with: pfg MFC After: 3 days Sponsored by: Netflix
* ddb: annotate some commands with DB_CMD_MEMSAFEMitchell Horne2022-07-181-1/+1
| | | | | | | | | | This is not completely exhaustive, but covers a large majority of commands in the tree. Reviewed by: markj Sponsored by: Juniper Networks, Inc. Sponsored by: Klara, Inc. Differential Revision: https://reviews.freebsd.org/D35583
* sysent: Get rid of bogus sys/sysent.h include.Dmitry Chagin2022-05-281-1/+0
| | | | | | Where appropriate hide sysent.h under proper condition. MFC after: 2 weeks
* vfs: NDFREE(&nd, NDF_ONLY_PNBUF) -> NDFREE_PNBUF(&nd)Mateusz Guzik2022-03-241-2/+2
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* boottrace: trace annotations for startup and shutdownMitchell Horne2022-02-221-0/+15
| | | | | | | | | | Add trace events for execution of SYSINITs (both static and dynamically loaded), and to the various steps in the shutdown/panic/reboot paths. Sponsored by: NetApp, Inc. Sponsored by: Klara, Inc. X-NetApp-PR: #23 Differential Revision: https://reviews.freebsd.org/D30187
* kern_linker.c: sort includesMitchell Horne2022-02-221-13/+13
| | | | | | | | | | This is preferred by style(9). Do this ahead of adding another include. Reviewed by: imp, kevans MFC after: 3 days Sponsored by: NetApp, Inc. Sponsored by: Klara, Inc. Differential Revision: https://reviews.freebsd.org/D30185
* kernel linker: do not read debug symbol tables for non-debug symbolsKonstantin Belousov2021-12-081-1/+1
| | | | | | | | | | | | | In particular, this prevents resolving locals from other files. To access debug symbol tables, add LINKER_LOOKUP_DEBUG_SYMBOL and LINKER_DEBUG_SYMBOL_VALUES kobj methods, which are allowed to use any types of present symbols in all tables. PR: 207898 Reviewed by: emaste, markj Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D32878
* linker_debug_symbol_values(): use proper linker interface to get debug valuesKonstantin Belousov2021-12-081-1/+1
| | | | | | | | Reported by: markj Reviewed by: emaste, markj Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D32878
* linker_kldload_busy(): allow recursionKonstantin Belousov2021-11-281-6/+16
| | | | | | | | | | | | Some drivers recursively loads modules by explicit calls to kldload during initialization, which might occur during kldload. PR: 259748 Reported and tested by: thj Reviewed by: markj Sponsored by: Nvidia networking MFC after: 1 week Differential revision: https://reviews.freebsd.org/D32972
* vfs: remove the unused thread argument from NDINIT*Mateusz Guzik2021-11-251-2/+2
| | | | | | See b4a58fbf640409a1 ("vfs: remove cn_thread") Bump __FreeBSD_version to 1400043.
* link_elf_obj: Invoke fini callbacksMark Johnston2021-07-291-0/+2
| | | | | | | | | | | | This is required for KASAN: when a module is unloaded, poisoned regions (e.g., pad areas between global variables) are left as such, so if they are reused as KLDs are loaded, false positives can arise. Reported by: pho, Jenkins Reviewed by: kib MFC after: 2 weeks Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D31339
* kern linker: do not allow more than one kldload and kldunload syscalls ↵Konstantin Belousov2021-05-311-18/+68
| | | | | | | | | | | | simultaneously kld_sx is dropped e.g. for executing sysinits, which allows user to initiate kldunload while module is not yet fully initialized. Reviewed by: markj Differential revision: https://reviews.freebsd.org/D30456 Sponsored by: The FreeBSD Foundation MFC after: 1 week
* Minor style cleanupWarner Losh2021-04-181-1/+1
| | | | | | | | | We prefer 'while (0)' to 'while(0)' according to grep and stlye(9)'s space after keyword rule. Remove a few stragglers of the latter. Many of these usages were inconsistent within the file. MFC After: 3 days Sponsored by: Netflix
* kern: clean up empty lines in .c and .h filesMateusz Guzik2020-09-011-3/+0
| | | | Notes: svn path=/head/; revision=365222
* Clarify which hints file is the source of an error message.Peter Wemm2020-06-011-2/+2
| | | | | | | | | PR: 246688 Submitted by: Ashish Gupta <lrx337@gmail.com> MFC after: 1 week Notes: svn path=/head/; revision=361685
* Use the symbolic name for "modmetadata_set".Mark Johnston2020-05-191-2/+1
| | | | | | | | MFC after: 1 week Sponsored by: The FreeBSD Foundation Notes: svn path=/head/; revision=361262
* fd: use smr for managing struct pwdMateusz Guzik2020-03-081-4/+18
| | | | | | | | | | | | This has a side effect of eliminating filedesc slock/sunlock during path lookup, which in turn removes contention vs concurrent modifications to the fd table. Reviewed by: markj, kib Differential Revision: https://reviews.freebsd.org/D23889 Notes: svn path=/head/; revision=358734
* fd: move vnodes out of filedesc into a dedicated structureMateusz Guzik2020-03-011-2/+2
| | | | | | | | | | | | | | | | The new structure is copy-on-write. With the assumption that path lookups are significantly more frequent than chdirs and chrooting this is a win. This provides stable root and jail root vnodes without the need to reference them on lookup, which in turn means less work on globally shared structures. Note this also happens to fix a bug where jail vnode was never referenced, meaning subsequent access on lookup could run into use-after-free. Reviewed by: kib Differential Revision: https://reviews.freebsd.org/D23884 Notes: svn path=/head/; revision=358503
* Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many)Pawel Biernacki2020-02-261-2/+4
| | | | | | | | | | | | | | | | | | | r357614 added CTLFLAG_NEEDGIANT to make it easier to find nodes that are still not MPSAFE (or already are but aren’t properly marked). Use it in preparation for a general review of all nodes. This is non-functional change that adds annotations to SYSCTL_NODE and SYSCTL_PROC nodes using one of the soon-to-be-required flags. Mark all obvious cases as MPSAFE. All entries that haven't been marked as MPSAFE before are by default marked as NEEDGIANT Approved by: kib (mentor, blanket) Commented by: kib, gallatin, melifaro Differential Revision: https://reviews.freebsd.org/D23718 Notes: svn path=/head/; revision=358333
* sys/kern: quiet -Wwrite-stringsRyan Libby2020-02-231-3/+5
| | | | | | | | | | | | Quiet a variety of Wwrite-strings warnings in sys/kern at low-impact sites. This patch avoids addressing certain others which would need to plumb const through structure definitions. Reviewed by: kib, markj Differential Revision: https://reviews.freebsd.org/D23798 Notes: svn path=/head/; revision=358258
* Remove duplicated empty lines from kern/*.cMateusz Guzik2020-01-301-1/+0
| | | | | | | No functional changes. Notes: svn path=/head/; revision=357312
* vfs: drop the mostly unused flags argument from VOP_UNLOCKMateusz Guzik2020-01-031-3/+3
| | | | | | | | | | | Filesystems which want to use it in limited capacity can employ the VOP_UNLOCK_FLAGS macro. Reviewed by: kib (previous version) Differential Revision: https://reviews.freebsd.org/D21427 Notes: svn path=/head/; revision=356337
* Rewrite arm kernel stack unwind code to work when unwinding through modules.Ian Lepore2019-12-151-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | The arm kernel stack unwinder has apparently never been able to unwind when the path of execution leads through a kernel module. There was code that tried to handle modules by looking for the unwind data in them, but it did so by trying to find symbols which have never existed in arm kernel modules. That caused the unwind code to panic, and because part of panic handling calls into the unwind code, that just created a recursion loop. Locating the unwind data in a loaded module requires accessing the Elf section headers to find the SHT_ARM_EXIDX section. For preloaded modules those headers are present in a metadata blob. For dynamically loaded modules, the headers are present only while the loading is in progress; the memory is freed once the module is ready to use. For that reason, there is new code in kern/link_elf.c, wrapped in #ifdef __arm__, to extract the unwind info while the headers are loaded. The values are saved into new fields in the linker_file structure which are also conditional on __arm__. In arm/unwind.c there is new code to locally cache the per-module info needed to find the unwind tables. The local cache is crafted for lockless read access, because the unwind code often needs to run in context where sleeping is not allowed. A large comment block describes the local cache list, so I won't repeat it all here. Notes: svn path=/head/; revision=355780
* Factor out check for mounted root file system.Hans Petter Selasky2019-11-281-2/+4
| | | | | | | | | | Differential Revision: https://reviews.freebsd.org/D22571 PR: 241639 MFC after: 1 week Sponsored by: Mellanox Technologies Notes: svn path=/head/; revision=355170
* Fix panic when loading kernel modules before root file system is mounted.Hans Petter Selasky2019-11-261-2/+4
| | | | | | | | | | | | Make sure the rootvnode is always NULL checked. Differential Revision: https://reviews.freebsd.org/D22545 PR: 241639 MFC after: 1 week Sponsored by: Mellanox Technologies Notes: svn path=/head/; revision=355108
* Add flags variants to linker_files / stack(9) symbol resolutionConrad Meyer2018-10-201-3/+21
| | | | | | | | | | | | | | | | | | Some best-effort consumers may find trylock behavior for stack(9) symbol resolution acceptable. Expose that behavior to such consumers. This API is ugly. If in the future the modules and linker file list locking is cleaned up such that the linker_files list can be iterated safely without acquiring a sleepable lock, this API should be removed. However, most of the time nothing will be holding the linker files lock exclusive and the acquisition can proceed. Reviewed by: markj Sponsored by: Dell EMC Isilon Differential Revision: https://reviews.freebsd.org/D17620 Notes: svn path=/head/; revision=339463
* The countp argument passed to linker_file_lookup_set() inBjoern A. Zeeb2018-10-171-2/+2
| | | | | | | | | | linker_load_dependencies() is unused, so no need to ask for the value in first place. Remove the unused "count" variable. Approved by: re (kib) Notes: svn path=/head/; revision=339407
* Use NULL for SYSINIT's last arg, which is a pointer typeEd Maste2018-05-181-4/+4
| | | | | | | Sponsored by: The FreeBSD Foundation Notes: svn path=/head/; revision=333806
* sys/kern: adoption of SPDX licensing ID tags.Pedro F. Giffuni2017-11-271-0/+2
| | | | | | | | | | | | | | | Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Notes: svn path=/head/; revision=326271
* Properly bzero kldstat structure to prevent kernel information leak.Gordon Tetlow2017-11-151-5/+7
| | | | | | | | | Submitted by: kib Reported by: TJ Corley Security: CVE-2017-1088 Notes: svn path=/head/; revision=325865
* sysctl-s in a module should be accessible only when the module is initializedAndriy Gapon2017-10-051-5/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A sysctl can have a custom handler that may access data that is initialized via SYSINIT(9) or via a module event handler (also invoked via SYSINIT). Thus, it is not safe to allow access to the module's sysctl-s until the initialization is performed. Likewise, we should not allow access to teh sysctl-s after the module is uninitialized. The latter is easy to achieve by properly ordering linker_file_unregister_sysctls and linker_file_sysuninit. The former is not as easy for two reasons: - the initialization may depend on tunables which get set when sysctl-s are registered, so we need to set the tunables before running sysinit-s - the initialization may try to dynamically add more sysctl-s under statically defined sysctl nodes So, this change splits the sysctl setup into two phases. In the first phase the sysctl-s are registered as before but they are disabled and hidden from consumers. In the second phase, done after sysinit-s, normal access to the sysctl-s is enabled. The change should affect only dynamic module loading and unloading after the system boot-up. Nothing changes for sysctl-s compiled into the kernel and sysctl-s in preloaded modules. Discussed with: hselasky, ian, jhb Reviewed by: julian, kib MFC after: 2 weeks Sponsored by: Panzura Differential Revision: https://reviews.freebsd.org/D12545 Notes: svn path=/head/; revision=324311
* revert r324166, it has an unrelated change in itAndriy Gapon2017-10-011-32/+5
| | | | Notes: svn path=/head/; revision=324167
* MFV r323531: 8521 nvlist memory leak in get_clones_stat() and spa_load_best()Andriy Gapon2017-10-011-5/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | illumos/illumos-gate@7d3000f774e20097a1ee45cbd06d0e38065ddd5a https://github.com/illumos/illumos-gate/commit/7d3000f774e20097a1ee45cbd06d0e38065ddd5a https://www.illumos.org/issues/8521 Yuri reported this to the mailing list: doing a `reboot -d` on current illumos-gate HEAD gives the following ":: findleaks -dv" output: findleaks: maximum buffers => 301061 findleaks: actual buffers => 297587 findleaks: findleaks: potential pointers => 29289774 findleaks: dismissals => 26242305 (89.5%) findleaks: misses => 331153 ( 1.1%) findleaks: dups => 2419681 ( 8.2%) findleaks: follows => 296635 ( 1.0%) findleaks: findleaks: peak memory usage => 7353 kB findleaks: elapsed CPU time => 1.5 seconds findleaks: elapsed wall time => 2.0 seconds findleaks: CACHE LEAKED BUFCTL CALLER ffffff03d222b008 120 ffffff03ef7ceb78 nv_alloc_sys+0x1f ffffff03d222a448 123 ffffff03f4150cc8 nv_alloc_sys+0x1f ffffff03d222b448 5 ffffff03f28bd598 nv_alloc_sys+0x1f ffffff03d222b888 87 ffffff03f28c10f0 nv_alloc_sys+0x1f ffffff03d222c008 21 ffffff03f4139310 nv_alloc_sys+0x1f ffffff03d222b888 43 ffffff040ef3f3e8 nv_alloc_sys+0x1f ffffff03d222c008 120 ffffff03f4591e58 nv_alloc_sys+0x1f ffffff03d222b008 121 ffffff03f352c068 nv_alloc_sys+0x1f ffffff03d222a448 112 ffffff03f414e5f8 nv_alloc_sys+0x1f ffffff03d222b008 119 ffffff03ee92fdc0 nv_alloc_sys+0x1f ffffff03d222b888 46 ffffff03f28c1378 nv_alloc_sys+0x1f ffffff03d222b448 4 ffffff03f28c7708 nv_alloc_sys+0x1f ffffff03d222c008 20 ffffff03f2a6e7e8 nv_alloc_sys+0x1f Reviewed by: Steve Gonczi <steve.gonczi@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Yuri Pankov <yuripv@gmx.com> Reviewed by: Matt Ahrens <mahrens@delphix.com> Approved by: Dan McDonald <danmcd@joyent.com> Author: Pavel Zakharov <pavel.zakharov@delphix.com> MFC after: 5 weeks X-MFC after: r324163 Notes: svn path=/head/; revision=324166
* kldstat: Use sizeof in place of named constants for sizingConrad Meyer2017-07-291-4/+4
| | | | | | | | | | | | | No functional change. This is handy for FreeBSD derivatives that want to modify the value of MAXPATHLEN, but not the kld_file_stat ABI. Submitted by: Siddhant Agarwal <sagarwal AT isilon.com> Sponsored by: Dell EMC Isilon Notes: svn path=/head/; revision=321707
* In linker_load_file() print name of a file that failed to load.Gleb Smirnoff2017-03-091-1/+2
| | | | | | | Discussed with: kib Notes: svn path=/head/; revision=314931
* kern_linker: Handle module-loading failures in preloaded .ko filesConrad Meyer2016-10-131-1/+37
| | | | | | | | | | | | | The runtime kernel loader, linker_load_file, unloads kernel files that failed to load all of their modules. For consistency, treat preloaded (loader.conf loaded) kernel files in the same way. Reviewed by: kib Sponsored by: Dell EMC Isilon Differential Revision: https://reviews.freebsd.org/D8200 Notes: svn path=/head/; revision=307163
* Add DDB command "kldstat"Conrad Meyer2016-06-091-0/+21
| | | | | | | | | | It prints much the same information as kldstat(8) without any arguments. Suggested by: jhibbits Sponsored by: EMC / Isilon Storage Division Notes: svn path=/head/; revision=301751
* sys/kern: spelling fixes in comments.Pedro F. Giffuni2016-04-291-2/+2
| | | | | | | No functional change. Notes: svn path=/head/; revision=298819
* sys: use our roundup2/rounddown2() macros when param.h is available.Pedro F. Giffuni2016-04-211-1/+1
| | | | | | | | | | | | | rounddown2 tends to produce longer lines than the original code and when the code has a high indentation level it was not really advantageous to do the replacement. This tries to strike a balance between readability using the macros and flexibility of having the expressions, so not everything is converted. Notes: svn path=/head/; revision=298433
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