src/lib/libsys/amd64, branch mainFreeBSD source treehttps://cgit-dev.freebsd.org/src/atom?h=main2026-01-28T02:26:52Zlibsys, libc: provide rfork_thread() and pdrfork_thread() on all arches2026-01-28T02:26:52ZKonstantin Belousovkib@FreeBSD.org2026-01-26T16:04:08Zurn:sha1:c1be185e3fb9afd6743683a8f5a43b9c364ab529
Reviewed by: markj
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D54898
libsys: add pdrfork_thread() on x862026-01-26T19:30:05ZKonstantin Belousovkib@FreeBSD.org2026-01-25T17:33:05Zurn:sha1:74a2bf1b7a7ff0c872499cb94df24713f61c872c
Reviewed by: asomers
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D54879
amd64: assume the kernel supports RDFSBASE and RDGSBASE2025-08-08T17:15:21ZBrooks Davisbrooks@FreeBSD.org2025-08-08T17:15:21Zurn:sha1:8d26a9da0c94f314b7e37a2784b13e2f5fb8052d
There is no need to support pre-12.0 (and thus pre-ino64) kernels in a
15.x libc.
Continue to check if the CPU supports these features before using them
and fall back as required.
Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D50732
amd64: add amd64_set_tlsbase(3)2025-05-28T11:11:23ZKonstantin Belousovkib@FreeBSD.org2025-05-22T04:32:03Zurn:sha1:2e7cf772a4114b78eb0ab2687d91d563de89e206
Tested by: pho
Reviewed by: olce
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D50482
lib{c,sys}: return wrapped syscall APIs to libc2024-03-13T18:36:02ZBrooks Davisbrooks@FreeBSD.org2024-03-13T17:42:01Zurn:sha1:d7847a8d351436a4654bd2c746bc9c04401160ee
These provide standard APIs, but are implemented using another system
call (e.g., pipe implemented in terms of pipe2) or are interposed by the
threading library to support cancelation.
After discussion with kib (see D44111), I've concluded that it is
better to keep most public interfaces in libc with as little
as possible in libsys.
Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D44241
lib{c,sys}: expose _getlogin consistently2024-02-29T19:46:33ZBrooks Davisbrooks@FreeBSD.org2024-02-29T19:46:33Zurn:sha1:304cdac7385a40477484737fc0a4aa928c3be9d6
Historically we exposed _getlogin as a private symbol on a per-arch basis
(except on aarch64 and riscv) for no obvious reason. We now need to
expose it for libc's use so remove the special case from
makesyscalls.lua and expose it in the generated syscalls.map.
Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D44116
SYS.h: make _SYSCALL_BODY overridable2024-02-05T20:34:56ZBrooks Davisbrooks@FreeBSD.org2024-01-05T18:33:37Zurn:sha1:f21777224411fee14b8aea6d8465bd6c2b318429
Reviewed by: kib, emaste, imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/908
libthr: move _umtx_op_err() to libsys2024-02-05T20:34:56ZBrooks Davisbrooks@FreeBSD.org2024-01-17T20:26:52Zurn:sha1:ef9871c6205c158b16ee23702d2b8c043debc51a
Declare in sys/umtx.h and implement in libsys. Explicitly link libthr
with libsys.
When building libthr static include _umtx_op_err so we don't break static
linkage with -lpthread.
Reviewed by: kib, emaste, imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/908
libc: move MD sys related symbols to libsys2024-02-05T20:34:56ZBrooks Davisbrooks@FreeBSD.org2023-11-15T21:48:45Zurn:sha1:1e2502bfca58344780747c3948b51164e25c8b5f
This is a mix genuine MD interfaces and compat symbols like _getlogin.
Reviewed by: kib, emaste, imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/908
libc: move rfork_thread(3) to libsys2024-02-05T20:34:56ZBrooks Davisbrooks@FreeBSD.org2023-11-15T21:44:43Zurn:sha1:cdecda8da32b67f2be34a4d2ea37f90986a45a00
rfork_thread(3) is assembly that makes syscalls directly and uses
cerror so it belongs in libsys.
Reviewed by: kib, emaste, imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/908