Before, the 'errno' itself was defined in libc and was referenced by
libsys, causing undesired dependency.
Reviewed by: brooks, imp
Sponsored by: The FreeBSD Foundation
Differential revision: https://reviews.freebsd.org/D43985
that existed in auxv.c, use simple bool gate instead. This leaves a
small window if two threads try to call _elf_aux_info(3) simultaneously.
The situation is safe because auxv parsing is really idempotent. The
parsed data is the same, and we store atomic types (int/long/ptr) so
double-init does not matter.
Reviewed by: brooks, imp
Sponsored by: The FreeBSD Foundation
Differential revision: https://reviews.freebsd.org/D43985
Continue to filter the public interface (elf_aux_info()), but entierly
relocate the private interfaces (_elf_aux_info(),
__init_elf_aux_vector(), and __elf_aux_vector) to libsys.
This ensures that rtld updates the correct (only) copy of
__elf_aux_vector. After 968a18975a
updates were confused and __getosreldate was failing, causing
the system to fall back to compat compat12 syscalls in some cases.
Return to explicitly linking libc to libsys and link libthr with libc
and libsys (in that order).
Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D43910
and use the current file offset instead.
Requested by: Vinícius dos Santos Oliveira <vini.ipsmaker@gmail.com>
Reviewed by: jhb
Discussed with: asomers
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D43448
In initial hacking I'd bluntly disabled manpage installation in libsys,
then later disabled them for libc, but forgot to fix the former leading
to no syscall manapages.
PR: 276887
Reported by: Martin Birgmeier <d8zNeCFG@aon.at>
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
libsys provides the FreeBSD kernel interface (auxargs, system calls,
vdso). It can be linked directly for programs using a non-standard
libc and will later be linked as a filter library to libc providing
the actual system call implementation.
Reviewed by: kib, emaste, imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/908
We now export all _ and __sys_ prefixed syscalls stubs from libc and
libsys so that libsys can replace them.
Reviewed by: kib, emaste, imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/908
This is part of the interface to the kernel and some syscall wrappers
depend on it so move it there.
Reviewed by: kib, emaste, imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/908
auxv support requires _once(), but we don't want the libsys version
stomping on the libc version should they diverge in the future. We
could rename it entierly, but for now just hook it in via Makefile.sys.
Reviewed by: kib, emaste, imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/908
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
libc/<arch>/sys/Makefile.inc -> libsys/<arch>/Makefile.sys.
Require that libsys/<arch>/Makefile.sys exist. At least for current
archtiectures, it's not possible for an architecture to not have and MD
syscall bits.
powerpcspe/Makefile.sys's structure means it had to be modified when moved
so rename detection won't work, but it has trivial contents so the
history is unimportant.
Reviewed by: kib, emaste, imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/908
These system call wrappers call interposed system calls in fairly
trivial ways. Move them over to libsys so all __libsys_interposer
consumers end up in libsys.
Also move recvmmsg and sendmmsg as they are documented with recv and
send.
Reviewed by: kib, emaste, imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/908
Remove core system call implementations and documentation to lib/libsys
and lib/libsys/<arch> from lib/libc/sys and lib/libc/<arch>/<sys>.
Update paths to allow libc to find them in their new home.
Reviewed by: kib, emaste, imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/908
