src/lib/libsys/arm, branch main

libsys/arm: include ARM EABI unwind bits into libsys

2026-02-13T17:52:25Z

libsys required ARM EABI unwind symbols like __aeabi_unwind_cpp_pr0. These symbols are normally provided by libc, but if a binary does not link libc, the symbol ends up not being resolved. Among other problems, this prevented gcc14 and newer from building on arm. Add the relevant symbols as hidden symbols into libsys to avoid this problem. (this patch was posted by jrtc27 who has asked me to move it along) PR: 292539 Tested by: fuz, Mark Millard Reviewed by: mmel Approved by: markj (mentor) MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D55255

libsys, libc: provide rfork_thread() and pdrfork_thread() on all arches

2026-01-28T02:26:52Z

Reviewed by: markj Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D54898

libsys: remove armv6 hack

2025-11-29T06:07:12Z

Signed-off-by: Minsoo Choo Reviewed by: imp Pull Request: https://github.com/freebsd/freebsd-src/pull/1903

lib: Remove __ARM_ARCH checks that are always true

2024-06-12T11:49:05Z

Reviewed by: imp Differential Revision: https://reviews.freebsd.org/D45559

libsys/arm: make vfork less of an outlier

2024-04-22T20:28:51Z

Following the pattern of other architectures, make __sys_vfork the main symbol and _vfork and vfork weak aliases. This avoids the need to special case vfork in the generated list of symbols. Differential Revision: https://reviews.freebsd.org/D44330

lib{c,sys}: return wrapped syscall APIs to libc

2024-03-13T18:36:02Z

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

libsys/arm: Remove pointless MD syscall(2)

2024-03-07T00:58:55Z

This file is functionally identical to the stub generated by Makefile.sys once the MD version is removed. Reviewed by: kib Differential Revision: https://reviews.freebsd.org/D44233

lib{c,sys}: expose _getlogin consistently

2024-02-29T19:46:33Z

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 overridable

2024-02-05T20:34:56Z

Reviewed by: kib, emaste, imp Pull Request: https://github.com/freebsd/freebsd-src/pull/908

libc: move MD sys related symbols to libsys

2024-02-05T20:34:56Z

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