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* Revert erronously pushed series of commits, which should not be.Konstantin Belousov2026-05-031-4/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Sorry for the mess. Revert "sys/vnode.h: remove stale comment" This reverts commit f193f5a749b696e6c05fa2c47c24522b1624b1a7. Revert "vfs: convert VFS_OPs from macros to static inlines" This reverts commit 48bf024f2ef5afeba3500bd92a04283370479edf. Revert "vnode: add VIRF_KNOTE flag" This reverts commit 7fe74a02764e5899b10cdc45ab34182b961d5d19. Revert "vfs: convert vfs_op_thread_* macros to static inlines" This reverts commit a61a696e78a967b149a6e39b1f98ada26217a6bb. Revert "struct vnode: assign v_rl.resv1 as v_vrflag" This reverts commit d990e8f0e9478194569ba28c366b0c0c0f414e7b. Revert "sys/rangelock.h: explicitly enumerate padding at the end of the structure" This reverts commit a770638ecf16515d8922111c3fdd417aba6c045e. Revert "bufspace_wait(): only try to help bufdaemon if there is a chance to help" This reverts commit 067cfac2e7bd9dc857fb6cc504c01b0249bcd1b7. Revert "Add O_SYMLINK emulation" This reverts commit f9458655e78f6532e962a13d28d6a6086b4156de. Revert "libc: add freadlink(3)" This reverts commit ae6a13deb8e33a52188643e09171207e1d7171e8. Revert "Add O_SYMLINK emulation" This reverts commit 2213820b6f4cd22bbfdc0f45741c3e7d17ae82c0.
* Add O_SYMLINK emulationKonstantin Belousov2026-05-031-1/+4
| | | | | | | | | | | for MacOSX partial compatibility, defined as O_PATH | O_SYNC | O_DIRECT. libc openat() wrapper is modified to fstat() the descriptor and re-open in the normal mode if the type is not symlink. Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D56365
* libthr.3: describe SIGTHRKonstantin Belousov2026-04-141-0/+19
| | | | | | | | | | Explain how SIGTHR is used and that it should be not touched by user code. Note about SIGLIBRT. Reviewed by: emaste Sponsored by: The FreeBSD Foundation MFC after: 3 days Differential revision: https://reviews.freebsd.org/D56384
* libthr.3: describe what we mean by C runtime environment.Konstantin Belousov2026-04-141-0/+6
| | | | | | | Reviewed by: emaste Sponsored by: The FreeBSD Foundation MFC after: 3 days Differential revision: https://reviews.freebsd.org/D56384
* lib/libsys, lib/libc: export pdwaitKonstantin Belousov2026-01-251-0/+15
| | | | | | | | | | Make pdwait(2) cancellable, same as all other wait*(2) syscalls wrappers. Reviewed by: asomers, markj Tested by: pho Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D54592
* lib/libthr: add pthread_tryjoin(3) testKonstantin Belousov2026-01-192-0/+63
| | | | | | | Reviewed by: markj Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D54766
* libthr: add pthread_tryjoin_np()Konstantin Belousov2026-01-192-14/+45
| | | | | | | | | Similar to the same glibc function. Reviewed by: markj Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D54766
* libthr/thread/thr_join.c: deduplicate backout_join() helperKonstantin Belousov2026-01-191-8/+13
| | | | | | | Reviewed by: markj Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D54766
* libthr: fix -Wunterminated-string-initializationAlex Richardson2025-12-161-2/+1
| | | | | | Reviewed by: jhb, emaste MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D52528
* libthr: GC unused _sigsuspend()Brooks Davis2025-08-062-9/+0
| | | | | | | There are no consumers and it isn't a public symbol. Reviewed by: kib Differential Revision: https://reviews.freebsd.org/D51670
* libthr: fix typo in commentKonstantin Belousov2025-07-291-1/+1
| | | | | Sponsored by: The FreeBSD Foundation MFC after: 3 days
* libc,libthr: Remove __pthread_distribute_static_tlsJessica Clarke2025-07-103-41/+0
| | | | | | | This private API is no longer used by rtld-elf so can be removed. Reviewed by: kib Differential Revision: https://reviews.freebsd.org/D50921
* libthr/amd64: do not set THR_C_RUNTIME for thr_new() if the main thread did ↵Konstantin Belousov2025-06-2211-2/+68
| | | | | | | | | | | | | | used AMD64_SET_TLSBASE It is up to the code that organizes the runtime to properly set the signal handler, and to set %fsbase if libthr signal handler is to be called. The change should leave the CPU state on the signal handler entry identical to what it was before introduction of TLSBASE, for code that provides its own startup and thread pointer, but still calls into libthr as a hack. Sponsored by: The FreeBSD Foundation MFC after: 1 week
* Implement CLOCK_TAINathan Whitehorn2025-06-121-0/+1
| | | | | | | | | | | | | | Provide a clock through clock_gettime() that returns the current TAI time (UTC without leap seconds) as a complement to CLOCK_REALTIME. This provides compatibility with Linux, which also provides a CLOCK_TAI since kernel 2.6.26, and this seems to be becoming the standard way to acquire TAI time. Unlike Linux, this code will return EINVAL if the TAI offset (set by ntpd, ptpd, etc.) is not known since it seems pathological for CLOCK_TAI to silently give the wrong (UTC) time if the offset is not known as it does on Linux. Reviewed by: imp Differential Revision: https://reviews.freebsd.org/D46268
* C runtime: add kernel version guards on exterrctlBrooks Davis2025-06-042-2/+9
| | | | | | | | | | | | This allows userspace to run on a (somewhat) out of date kernel. Avoid a __FreeBSD_version bump and use the bump from a02180cf60a6 which has occured since exterrctl was added. Reviewed by: kevans Fixes: b9c8a07d4dd9 ("C runtime: enable extended error reporting from kernel") Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D50687
* Provide user interface to retrieve reported extended errorsKonstantin Belousov2025-05-311-2/+12
| | | | | | | Reviewed by: brooks Sponsored by: The FreeBSD Foundation MFC after: 2 weeks Differential revision: https://reviews.freebsd.org/D50483
* C runtime: enable extended error reporting from kernelKonstantin Belousov2025-05-313-0/+10
| | | | | | | Reviewed by: brooks Sponsored by: The FreeBSD Foundation MFC after: 2 weeks Differential revision: https://reviews.freebsd.org/D50483
* thr_new: add a flag indicating that the thread is created by C runtimeKonstantin Belousov2025-05-311-1/+1
| | | | | Sponsored by: The FreeBSD Foundation MFC after: 1 week
* libc, libthr: Ditch MD __pthread_distribute_static_tls helpersJessica Clarke2025-05-297-273/+16
| | | | | | | | | | | | | | | | | | _libc_get_static_tls_base() is just _tcb_get() followed by adding (for Variant I) or subtracting (for Variant II) the offset, so just inline that as the implementation (like we do in rtld-elf) rather than having another copy (or equivalent) of _tcb_get()'s assembly. _get_static_tls_base() doesn't even have any MD assembly as it's reading thr->tcb, the only difference is whether to add or subtract, so again just inline that. Whilst here add some missing blank lines to comply with style(9) for elf_utils.c's includes, and use a pointer type rather than uintptr_t to reduce the need to cast, as is done in rtld-elf. Reviewed by: kib Differential Revision: https://reviews.freebsd.org/D50592
* libthr: add stable user interface for sigfastblock(2)Konstantin Belousov2025-05-192-0/+21
| | | | | | | Reviewed by: markj Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D50377
* pthread_switch_add_np(3): removeKonstantin Belousov2025-05-191-1/+4
| | | | | | | | | | | | The interface is not functional with libthr and returns not supported error always. There is no point in providing it to userspace or document. The symbols are kept for ABI compatibility, of course. Reviewed by: emaste, markj Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D50376
* libthr.so: mark as -z initfirstKonstantin Belousov2025-05-061-0/+1
| | | | | | | PR: 286537 Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D50133
* tests: move some files to the tests packageLexi Winter2025-05-051-0/+1
| | | | | | | | | | | | | | | | | | some test support libraries had escaped confinement and were found wandering around the utilities package: /usr/tests/lib/csu/dynamiclib/libh_csu.so /usr/tests/lib/libthr/dlopen/h_pthread_dlopen.so /usr/tests/lib/libthr/dlopen/h_pthread_dlopen.so.1 /usr/tests/sys/vm/stack/libsoxstack.so these aren't built using bsd.test.mk, so they don't get the default PACKAGE=tests option; set this by hand in their Makefiles to put them back where they belong. Reviewed by: manu, des, emaste Approved by: des (mentor) Differential Revision: https://reviews.freebsd.org/D50147
* thr_rtld: accept read lock requests while owning the lock for writeKonstantin Belousov2025-05-021-5/+21
| | | | | | | | PR: 286505 Reviewed by: olce Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D50117
* libthr: properly align struct pthreadsKonstantin Belousov2025-04-251-1/+3
| | | | | | | | | | For instance, the structure contains the struct _Unwind_Exception, and it seems that libgcc requires specific alignment for it. PR: 285711 Tested by: Oleg Sidorkin <osidorkin@gmail.com> Sponsored by: The FreeBSD Foundation MFC after: 1 week
* libthr: add __thr_aligned_alloc_offset()Konstantin Belousov2025-04-252-0/+14
| | | | | Sponsored by: The FreeBSD Foundation MFC after: 1 week
* pthread_create(): styleKonstantin Belousov2025-01-141-3/+3
| | | | | | | | | Use NULL instead of 0 for null pointer. Use != 0 for non-bool, as in the rest of the function. Remove unneeded (). Sponsored by: The FreeBSD Foundation MFC after: 1 week
* libpthread_init(): ensure curthread == NULL until set explicitlyKonstantin Belousov2025-01-141-0/+2
| | | | | | | | | | | | | Otherwise libthr::_get_curthread() returns a garbage kept there from allocate_initial_tls(), until libthr initialization proceeds enough to set initial pcb->pcb_thread. The garbage pcb_thread was dereferenced as struct pthread and some memory read as TID. Since the read might not be consistent between reads, thr_malloc_umtx unlock sometimes returned EPERM instead of clearing the lock word. Reported by: markj Sponsored by: The FreeBSD Foundation MFC after: 1 week
* libthr: switch thread and sleepq memory allocator to crt from libc mallocKonstantin Belousov2025-01-142-4/+4
| | | | | | | | | | | | | There are more complex interactions between malloc and libthr initialization that can happen if libthr functions are called from ELF object' constructors, before libthr is initialized. Break the dependencies loop by using the private allocator with controlled init. Reported by: yuri Reviewed by: markj, olce Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D48454
* pthread_mutex_trylock(): init libthr if neededKonstantin Belousov2025-01-141-0/+1
| | | | | | | | Reported by: yuri Reviewed by: markj, olce Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D48454
* libthr: use atomic_add_int() instead of atomic_fetchadd_int()Konstantin Belousov2025-01-141-5/+5
| | | | | | | | | the return value is ignored. Reviewed by: markj, olce Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D48454
* check_cancel: when in_sigsuspend, send SIGCANCEL unconditionallyKonstantin Belousov2024-12-281-3/+5
| | | | | | | | | | | | | | not only when check_cancel is called from the signal handler. _thr_wake() is not enough to get the sigsuspend(2) syscall out of the loop, since it only terminates sleep when an unblocked signal is delivered. PR: 283101 In collaboration with: pho Reviewed by: markj Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D48200
* pthread_setcancelstate(3): make it async-signal-safeKonstantin Belousov2024-12-281-6/+6
| | | | | | | | | | | | | | | | by setting new cancel state and reading old cancel state from the curthread structure atomic. Note that this does not play well with async cancellation, since if cancellation is enabled from a signal handler and cancellation request is pending, the thread is cancelled immediately, calling user-defined destructors, which all must be async-signal-safe (but this is a general requirement for async cancellation anyway). Reviewed by: markj Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D48200
* thr_cancel.c: use testcancel() instead of manually expanding itKonstantin Belousov2024-12-281-3/+2
| | | | | | | Reviewed by: markj Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D48200
* libthr: move dlerror_msg into zeroed part of struct threadKonstantin Belousov2024-12-281-5/+5
| | | | | | | | | | struct thread reuse might cause stalled rtld error message to propagate to the new thread. Reviewed by: markj Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D48200
* thr_sig.c: styleKonstantin Belousov2024-12-281-12/+10
| | | | | | | Reviewed by: markj Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D48200
* thr_cancel.c: styleKonstantin Belousov2024-12-281-4/+4
| | | | | | | Reviewed by: markj Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D48200
* libc, libthr: coordinate stubs for pthread_{suspend,resume}_all_npKyle Evans2024-11-144-4/+10
| | | | | | | | | If libthr isn't linked into the process, then we don't have any pthreads to worry about and our stubs can just return success -- there are none to suspend/resume. Reviewed by: kib Differential Revision: https://reviews.freebsd.org/D47350
* libthr: allow very early atfork registrationKyle Evans2024-11-143-9/+65
| | | | | | | | | | | | | | | | LSan wants to be able to register atfork handlers at __lsan_init time, which can happen either at the first intercepted function call or in a .preinit_array function. Both of these end up being very early in rtld and executed with the bind lock held, which ends up causing problems when we go to _libpthread_init(). Instead of requiring libpthread to be initialized, just insert the new atfork handler straight into the list if it's not ready yet. The critical section and locking should not be necessary if we're really executing this early, as there won't be any threads to contend with. Reviewed by: kib (earlier version), markj Differential Revision: https://reviews.freebsd.org/D47349
* libthr: add some tests for pthread_atfork() handlingKyle Evans2024-11-142-0/+228
| | | | | | | | | Test that it generally functions, and also that registering multiple times calls each handler in the order that it's documented to call them in. Reviewed by: kib, markj Differential Revision: https://reviews.freebsd.org/D47348
* Retire MK_PROFILE infrastructureEd Maste2024-11-121-3/+0
| | | | | | | | | | It was disabled by default in fe52b7f60ef4. We planned to (but did not) remove the option before FreeBSD 14. Remove it now, for FreeBSD 15. Relnotes: Yes Reviewed by: imp Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D31558
* Canonicalize the name of the FreeBSD FoundationLi-Wen Hsu2024-10-231-1/+1
| | | | | Reviewed by: emaste Sponsored by: The FreeBSD Foundation
* manuals: Fix some "missing section argument"Graham Percival2024-10-151-1/+1
| | | | | | | | | These were reported by `mandoc -T lint ...` as warnings. Signed-off-by: Graham Percival <gperciva@tarsnap.com> Reviewed by: mhorne, Alexander Ziaee <concussious.bugzilla@runbox.com> Sponsored by: Tarsnap Backup Inc. Pull Request: https://github.com/freebsd/freebsd-src/pull/1467
* manuals: Fix "unusual .Xr" warnings with a scriptGraham Percival2024-10-151-2/+2
| | | | | | | | | | | | | These were reported by `mandoc -T lint ...` as warnings: - unusual Xr order - unusual Xr punctuation Fixes made by script in https://github.com/Tarsnap/freebsd-doc-scripts Signed-off-by: Graham Percival <gperciva@tarsnap.com> Reviewed by: mhorne, Alexander Ziaee <concussious.bugzilla@runbox.com> Sponsored by: Tarsnap Backup Inc. Pull Request: https://github.com/freebsd/freebsd-src/pull/1464
* Update Makefile.depend filesSimon J. Gerraty2024-10-141-1/+0
| | | | | | | After building packages we have a number of new and updated Makefile.depend files Reviewed by: stevek
* lib{c,sys}: stop exposing errno symbolBrooks Davis2024-09-272-7/+5
| | | | | | | | | | | | | | | | | Officially since C11 (and in reality FreeBSD since 3.0 with commit 1b46cb523df3) errno has been defined to be a macro. Rename the symbol to __libsys_errno and move it to FBSDprivate_1.0 and confine it entierly to libsys for use by libthr. Add a FBSD_1.0 compat symbol for existing binaries that were incorrectly linked to the errno symbol during libc.so.7's lifetime. This deliberately breaks linking software that directly links to errno. Such software is broken and will fail in surprising ways if it becomes threaded (e.g., if it triggers loading of a pam or nss module that uses threads.) Reviewed by: kib Differential Revision: https://reviews.freebsd.org/D46780
* libthr: add libsys for dirdeps buildKa Ho Ng2024-09-241-0/+1
| | | | Sponsored by: Juniper Networks, Inc.
* Remove "All Rights Reserved" from FreeBSD Foundation copyrightsEd Maste2024-07-302-2/+0
| | | | | | | These ones were unambiguous cases where the Foundation was the only listed copyright holder. Sponsored by: The FreeBSD Foundation
* rtld: avoid division in __thr_map_stacks_exec()Konstantin Belousov2024-07-291-4/+1
| | | | | | | | | | | | | | | The function is called by rtld with the rtld bind lock write-locked, when fixing the stack permission during dso load. Not every ARMv7 CPU supports the div, which causes the recursive entry into rtld to resolve the __aeabi_uidiv symbol, causing self-lock. Workaround the problem by using roundup2() instead of open-coding less efficient formula. Diagnosed by: mmel Based on submission by: John F Carr <jfc@mit.edu> Sponsored by: The FreeBSD Foundation MFC after: 1 week
* Revert "Avoid division in round_up."Brooks Davis2024-07-251-1/+4
| | | | | | This reverts commit 2b229739e7ca43b36e53f47147ac05a91333f7b9. Pull Request: https://github.com/freebsd/freebsd-src/pull/1343
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