Add the two missing errno.h constants: EOWNERDEAD and ENOTRECOVERABLE.
While technically they're used for robust mutexes which we do not
support at the moment, they are listed in POSIX and used by libc++.
While libc++ can be made to build without it, it just locally redefines
the values then, so we may as well define them globally.
Makefiles so that we can make changes to it centrally as needed and have
less mess. Fixes the sun2 build that needs rumpvfs after librump after
the latest changes.
Changes:
- membar_producer();
*p = v;
=>
atomic_store_release(p, v);
(Effectively like using membar_exit instead of membar_producer,
which is what we should have been doing all along so that stores by
the `reader' can't affect earlier loads by the writer, such as
KASSERT(p->refcnt == 0) in the writer and atomic_inc(&p->refcnt) in
the reader.)
- p = *pp;
if (p != NULL) membar_datadep_consumer();
=>
p = atomic_load_consume(pp);
(Only makes a difference on DEC Alpha. As long as lists generally
have at least one element, this is not likely to make a big
difference, and keeps the code simpler and clearer.)
No other functional change intended. While here, annotate each
synchronizing load and store with its counterpart in a comment.
Do not change the signedness bit with a left shift operation.
Switch to unsigned integer to prevent this.
t_bitops.c:189:9, left shift of 1 by 31 places cannot be represented in type 'int'
Detected with micro-UBSan in the user mode.
Replace UB with implementation defined logic to check whether ssize_t can
wrap to a negative number.
t_types.c:63:7, signed integer overflow: 9223372036854775807 + 1 cannot be represented in type 'long int'
Detected with micro-UBSan in the user mode.
- Reorganize ilog2_basic to ilog2_32bit, ilog2_64bit and ilog2_const.
ilog2_const is compile-time test for __builtin_constant_p() part of
current ilog2() implementation.
- Remove fully meaningless ilog2_log2. So this part of PR misc/44767
is no longer present.
The atf_arch and atf_machine configuration variables were removed from
atf-0.19 without me realizing that some tests were querying them directly.
Instead of reintroducing those variables, just rely on compiler builtins
as many other tests already do.
Should fix PR bin/48582.
depend on new devname_r(3) as heart. Add /dev/pts magic directly to
devname(3). While it can lead to returning non-existing paths, the
behavior is more consistent that way. Drop caching layer in devname(3),
it doesn't buy anything for the common case of having access to the
database. Teach devname(3) proper fallback behavior of scanning /dev.
Create both old-style and new-style database for now in /etc/rc.d/sysdb.
bugs. It appears to be quite difficult to identify the exact Qemu version
and setup. These do not fail on the TNF's qemu/amd64 setup, which can be
taken as a reference point for expected failures.
kamil