Commit Graph

21646 Commits

Author SHA1 Message Date
Konstantin Belousov
e67ef6ce66 libkvm: Fix build after removeal of p_tracevp
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2021-05-22 16:36:54 +03:00
Kristof Provost
d0fdf2b28f pf: Track the original kif for floating states
Track (and display) the interface that created a state, even if it's a
floating state (and thus uses virtual interface 'all').

MFC after:	1 week
Sponsored by:	Rubicon Communications, LLC ("Netgate")
Differential Revision:	https://reviews.freebsd.org/D30245
2021-05-20 12:49:27 +02:00
Kristof Provost
bc94129147 pfctl: Use DIOCGETSTATESNV
Migrate to using the new nvlist-based DIOCGETSTATESNV call to obtain the
states list.

MFC after:	1 week
Sponsored by:	Rubicon Communications, LLC ("Netgate")
Differential Revision:	https://reviews.freebsd.org/D30244
2021-05-20 12:49:27 +02:00
Mitchell Horne
dfdc57e8aa libpmc: fall-back to kernel tables if pmu-events fails
On x86, the pmu_events table is the source of truth for finding
supported events. However, events not found there may still be present
in the kernel's static event tables. For example, the pmc.soft(3) events
will never be available from pmu-events.

Update pmc_allocate() to search the legacy event tables if
pmc_pmu_pmcallocate() fails to return a result. This allows both event
sources to be consulted before giving up, thus restoring pmc.soft(3) and
pmc.tsc(3) on x86.

Reviewed by:	emaste
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D30216
2021-05-13 16:01:24 -03:00
Mitchell Horne
da13ef6aa0 libpmc: remove PMC_MDEP_TABLE logic
This logic was added for handling some of the complicated relationships
between events and x86 CPU models. Since that logic has been mostly
removed from libpmc(3) in favor of pmu-events, this no longer serves
much of a purpose. Mapping CPU types to event tables is already handled
by the switch statement in pmc_init().

Reviewed by:	ray, emaste
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D30196
2021-05-13 16:01:19 -03:00
Mitchell Horne
4d8d74a4f5 libpmc: remove unused PMC_MDEP_INIT_INTEL_V2
All uses of this macro were removed in e92a1350b5. Remove
cpu_has_iaf_counters as well.

Reviewed by:	ray, emaste
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D30195
2021-05-13 15:56:39 -03:00
Emmanuel Vadot
6dbde50a7e pkgbase: Move librt to clibs
librt implement the POSIX realtime extension library.
Move it to clibs instead of utilities as a number of ports uses it
so avoid a dependancy on FreeBSD-utilities.

MFC after:	1 month
Differential Revision:	https://reviews.freebsd.org/D30088
2021-05-13 17:41:24 +02:00
Fernando Apesteguía
94eb6c42ab syslog.3 - Add detail about LOG_PID
Document that LOG_PID is ignored and can not be disabled.
This change was made along with the move from RFC 3164 to RFC 5424 log messages.

PR:	255664
Reported by:	des.gaufres@gmail.com
Reviewed by:	gbe, jilles
Approved by:	gbe (mentor, manpages), jilles
2021-05-13 16:23:44 +02:00
Ceri Davies
1760799b4c Remove references to timed(8)
There are still references to timed(8) and timedc(8) in the base system,
which were removed in 2018.

PR: 255425
Reported by:	Ceri Davies <ceri at submonkey dot net>
Reviewed by:	ygy, gbe
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D30232
2021-05-13 09:53:08 +02:00
Robert Wing
a7f81b488d libvmm: explicitly save and restore errno in vm_open()
In commit 6bb140e3ca, vm_destroy() was replaced with free() to
preserve errno. However, it's possible that free() may change the errno
as well. Keep the free() call, but explicitly save and restore errno.

Noted by: jhb
Fixes: 6bb140e3ca
2021-05-11 15:11:52 -08:00
Konstantin Belousov
5e7cdf1817 openat(2): add O_EMPTY_PATH
It reopens the passed file descriptor, checking the file backing vnode'
current access rights against open mode. In particular, this flag allows
to convert file descriptor opened with O_PATH, into operable file
descriptor, assuming permissions allow that.

Reviewed by:	markj
Tested by:	Andrew Walker <awalker@ixsystems.com>
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D30148
2021-05-11 02:39:24 +03:00
Kristof Provost
93abcf17e6 pf: Support killing 'matching' states
Optionally also kill states that match (i.e. are the NATed state or
opposite direction state entry for) the state we're killing.

See also https://redmine.pfsense.org/issues/8555

Submitted by:	Steven Brown
Reviewed by:	bcr (man page)
Obtained from:	https://github.com/pfsense/FreeBSD-src/pull/11/
MFC after:	1 week
Sponsored by:	Rubicon Communications, LLC ("Netgate")
Differential Revision:	https://reviews.freebsd.org/D30092
2021-05-07 22:13:31 +02:00
Kristof Provost
abbcba9cf5 pf: Allow states to by killed per 'gateway'
This allows us to kill states created from a rule with route-to/reply-to
set.  This is particularly useful in multi-wan setups, where one of the
WAN links goes down.

Submitted by:	Steven Brown
Obtained from:	https://github.com/pfsense/FreeBSD-src/pull/11/
MFC after:	1 week
Sponsored by:	Rubicon Communications, LLC ("Netgate")
Differential Revision:	https://reviews.freebsd.org/D30058
2021-05-07 22:13:31 +02:00
Kristof Provost
2a00c4db93 pfctl: Start using DIOCKILLSTATESNV
MFC after:	1 week
Sponsored by:	Rubicon Communications, LLC ("Netgate")
Differential Revision:	https://reviews.freebsd.org/D30055
2021-05-07 22:13:31 +02:00
Kristof Provost
53714a5861 pfctl: Start using DIOCCLRSTATESNV
MFC after:	1 week
Sponsored by:	Rubicon Communications, LLC ("Netgate")
Differential Revision:	https://reviews.freebsd.org/D30053
2021-05-07 22:13:30 +02:00
Justin Hibbits
6640579610 msun fixes for SPE
Summary:
Fix FPU exception management for powerpcspe.  Bits are in a different place from
the standard FPSCR, so we need to handle the shifting differences.  Also,
there's no concept of a "software exception" raise, so we need to do exceptional
math to trigger the exception from software.

Reviewed By: alfredo
Differential Revision: https://reviews.freebsd.org/D22824
2021-05-05 20:57:33 -05:00
Edward Tomasz Napierala
1bffa44166 ptrace: document ENOMEM
Reviewed By:	emaste, markj
Sponsored By:	EPSRC
Differential Revision:	https://reviews.freebsd.org/D29960
2021-05-04 15:22:42 +01:00
Konstantin Belousov
87a64872cd Add ptrace(PT_COREDUMP)
It writes the core of live stopped process to the file descriptor
provided as an argument.

Based on the initial version from https://reviews.freebsd.org/D29691,
submitted by Michał Górny <mgorny@gentoo.org>.

Reviewed by:	markj
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D29955
2021-05-03 19:18:26 +03:00
Konstantin Belousov
07f229d20c connectat(2): clarify that the s argument is socket
Sponsored by:	The FreeBSD Foundation
MFC after:	3 days
2021-04-30 17:43:45 +03:00
Mark Johnston
44bbda649d cap_sysctl.3: Fix bugs in the example
- Correct the type of the sysctl value.
- Initialize the oldsize parameter to cap_sysctlbyname()

MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2021-04-28 10:38:52 -04:00
Thomas Munro
3aaaa2efde poll(2): Add POLLRDHUP.
Teach poll(2) to support Linux-style POLLRDHUP events for sockets, if
requested.  Triggered when the remote peer shuts down writing or closes
its end.

Reviewed by:	kib
MFC after:	1 month
Differential Revision:	https://reviews.freebsd.org/D29757
2021-04-28 23:00:31 +12:00
Yuri Pankov
01a856c666 open_memstream(3): fix typo
While here, pet mandoc: .Tn -> .Vt
2021-04-28 12:18:25 +03:00
Kristof Provost
402dfb0a8d pf: Fix parsing of long table names
When parsing the nvlist for a struct pf_addr_wrap we unconditionally
tried to parse "ifname". This broke for PF_ADDR_TABLE when the table
name was longer than IFNAMSIZ. PF_TABLE_NAME_SIZE is longer than
IFNAMSIZ, so this is a valid configuration.

Only parse (or return) ifname or tblname for the corresponding
pf_addr_wrap type.

This manifested as a failure to set rules such as these, where the pfctl
optimiser generated an automatic table:

	pass in proto tcp to 192.168.0.1 port ssh
	pass in proto tcp to 192.168.0.2 port ssh
	pass in proto tcp to 192.168.0.3 port ssh
	pass in proto tcp to 192.168.0.4 port ssh
	pass in proto tcp to 192.168.0.5 port ssh
	pass in proto tcp to 192.168.0.6 port ssh
	pass in proto tcp to 192.168.0.7 port ssh

Reported by:	Florian Smeets
Tested by:	Florian Smeets
Reviewed by:	donner
X-MFC-With:	5c11c5a365
MFC after:	2 weeks
Sponsored by:	Rubicon Communications, LLC ("Netgate")
Differential Revision:	https://reviews.freebsd.org/D29962
2021-04-26 18:08:15 +02:00
Kristof Provost
6fcc8e042a pf: Allow multiple labels to be set on a rule
Allow up to 5 labels to be set on each rule.
This offers more flexibility in using labels. For example, it replaces
the customer 'schedule' keyword used by pfSense to terminate states
according to a schedule.

Reviewed by:	glebius
MFC after:	2 weeks
Sponsored by:	Rubicon Communications, LLC ("Netgate")
Differential Revision:	https://reviews.freebsd.org/D29936
2021-04-26 14:14:21 +02:00
Robert Watson
8e491aaeac Add code examples to cpuset(2), and improve cross referencing.
MFC after:	1 week
Reviewed by:	jeff, jrtc27, kevans, bcr (manpages)
Differential revision:	https://reviews.freebsd.org/D27803
2021-04-25 15:22:00 +01:00
Ed Maste
3cfd08c1c7 libkiconv: address memory leak in not-found cases
Found in "Understanding and Detecting Disordered Error Handling with
Precise Function Pairing" by Qiushi Wu et al.

Reviewed by:	imp, jhb
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D29896
2021-04-22 19:32:34 -04:00
Mitchell Horne
50f6c13997 pmc_allocate(3): document the count argument
This was added in b2ca2e50b9, and serves to provide an initial value
to the PMC, eliminating the need for a second syscall via pmc_set(3).

Reviewed by:	gnn, 0mp (manpages)
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D29885
2021-04-21 17:35:03 -03:00
Andrew Walker
dd559118ab Fix leak in libc NFSv4 flags parsing
Free memory allocated by strdup() in parse_flags_verbose().

Submitted by:	Andrew Walker <walker.aj325_gmail.com>
Reported by:	valgrind
Reviewed by:	allanjude, freqlabs, rpokala
MFC after:	3 days
Sponsored by:	iXsystems, Inc.
Differential Revision:	https://reviews.freebsd.org/D29871
2021-04-20 15:39:56 -04:00
Mateusz Piotrowski
ca904beafd fork.2: Fix a typo in an example
Reported by:	rpokala
MFC with:	c4207d867c
2021-04-20 10:24:21 +02:00
Alex Richardson
1ad83445fc Allow lib/msun/logarithm_test to pass on ld128 platforms
For some reason the ld128 log1pl() implementation is less accurate than
logl(), but does at least guarantee precision >= the ld80 implementation.
Mark log1p_accuracy_tests as XFAIL for ld128 and increase the log1p tolerance
to the ld80 equivalent in accuracy_tests to avoid losing test coverage for
the other functions.

PR:		253984
Reviewed By:	ngie, dim
Differential Revision: https://reviews.freebsd.org/D29039
2021-04-20 01:46:43 +01:00
Alex Richardson
ab147542b7 libc/string/memset.c: Use unsigned long for stores
While most 64-bit architectures have an assembly implementation of this
file, RISC-V does not. As we now store 8 bytes instead of 4 it should speed
up RISC-V.

Reviewed By:	kib
MFC after:	1 week
Differential Revision: https://reviews.freebsd.org/D29536
2021-04-20 01:46:43 +01:00
Alex Richardson
0b4ad01d91 libc/string/bcopy.c: Use intptr_t as the copy type
While most 64-bit architectures have an assembly implementation of this
file RISC-V does not. As we now copy 8 bytes instead of 4 it should speed
up RISC-V. Using intptr_t instead of int also allows using this file for
CHERI pure-capability code since trying to copy pointers using integer
loads/stores will invalidate pointers.

Reviewed By:	kib
Obtained from:	CheriBSD (partially)
MFC after:	1 week
Differential Revision: https://reviews.freebsd.org/D29535
2021-04-20 01:46:42 +01:00
Kristof Provost
42ec75f83a pf: Optionally attempt to preserve rule counter values across ruleset updates
Usually rule counters are reset to zero on every update of the ruleset.
With keepcounters set pf will attempt to find matching rules between old
and new rulesets and preserve the rule counters.

MFC after:	4 weeks
Sponsored by:	Rubicon Communications, LLC ("Netgate")
Differential Revision:	https://reviews.freebsd.org/D29780
2021-04-19 14:31:47 +02:00
Alex Richardson
738314e445 Revert "lib/libc/net/nsdispatch.c: Fix missing unlock and add locking annotations"
This commit should not have introduced any functional changes, but
apparently it did. This appears to have broken LDAP setups.
Reverting for now. Will reland once I have fixed the breakage.

This reverts commit 5245bf7b92.
Reported By:	Александр Недоцуков, brd
MFC after:	immediately
2021-04-19 09:36:47 +01:00
Mateusz Piotrowski
1ffdcdadf6 getprogname.3: Add an example
It shows the difference between getprogname() and argv[0].

Reviewed by:	yuripv
Approved by:	yuripv (src)
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D27204
2021-04-18 10:20:11 +02:00
Mateusz Piotrowski
c4207d867c fork.2: Add a simple use pattern
It seems to be a nice idea to show how fork() is usually used in
practice. This may act as a guide to developers who want to quickly
recall how to use the fork() function.

Reviewed by:	bcr, yuripv
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D27626
2021-04-17 23:12:06 +02:00
Kristof Provost
8403170b3d libpfct: Fix PIC flag
Use ${PICFLAG} rather than hard-adding -fPIC, which removes the
requirement for libnv to be built PIC.

MFC after:      4 weeks
Sponsored by:   Rubicon Communications, LLC ("Netgate")
2021-04-17 22:10:13 +02:00
Alex Richardson
062293c2c4 Remove XFAIL from tests/lib/msun/lround_test:main
This test no longer fails after 3b00222f15.

PR:		205451
MFC after:	1 week
2021-04-15 16:28:09 +01:00
Alex Richardson
3f01d8c2fe Remove amd64 XFAIL from tests/lib/msun/fma_test:infinities
This test no longer fails after 3b00222f15.

PR:		205448
MFC after:	1 week
2021-04-15 16:28:08 +01:00
Alex Richardson
168234fa67 lib/msun: Exclude ignored-pragmas from -Werror
This avoids build failures due to the clang 12 warning:
    '#pragma FENV_ACCESS' is not supported on this target - ignored

Clang 12 currently emits this warning for all non-x86 architectures.
While this can result in incorrect code generation (e.g. on AArch64 some
exceptions are not raised as expected), this is a pre-existing issue and
we should not fail the build due to this warning.

Reviewed By:	dim, emaste
MFC after:	1 week
Differential Revision: https://reviews.freebsd.org/D29743
2021-04-15 16:27:52 +01:00
Konstantin Belousov
bbf7a4e878 O_PATH: allow vnode kevent filter on such files
if VREAD access is checked as allowed during open

Requested by:	wulf
Reviewed by:	markj
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D29323
2021-04-15 12:49:18 +03:00
Konstantin Belousov
a5970a529c Make files opened with O_PATH to not block non-forced unmount
by only keeping hold count on the vnode, instead of the use count.

Reviewed by:	markj
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D29323
2021-04-15 12:48:27 +03:00
Konstantin Belousov
8d9ed174f3 open(2): Implement O_PATH
Reviewed by:	markj
Tested by:	pho
Discussed with:	walker.aj325_gmail.com, wulf
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D29323
2021-04-15 12:48:24 +03:00
Konstantin Belousov
509124b626 Add AT_EMPTY_PATH for several *at(2) syscalls
It is currently allowed to fchownat(2), fchmodat(2), fchflagsat(2),
utimensat(2), fstatat(2), and linkat(2).

For linkat(2), PRIV_VFS_FHOPEN privilege is required to exercise the flag.
It allows to link any open file.

Requested by:	trasz
Tested by:	pho, trasz
Reviewed by:	markj
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
Differential revision:	https://reviews.freebsd.org/D29111
2021-04-15 12:48:11 +03:00
Konstantin Belousov
c78e124535 link(2): correct descriptor name in AT_RESOLVE_BENEATH description
Noted and reviewed by:	markj
Sponsored by:	The FreeBSD Foundation
MFC after:	3 days
Differential revision:	https://reviews.freebsd.org/D29111
2021-04-15 12:47:40 +03:00
Yuri Pankov
adec9669ff expand @TPUT@ in ncurses manpages
Reviewed by:	bapt
Differential Revision:	https://reviews.freebsd.org/D29761
2021-04-14 18:16:59 +03:00
Kristof Provost
4eabfe468b pfctl: Fix clearing rules counters
After the migration to libpfctl for rule retrieval we accidentally lost
support for clearing the rules counters.

Introduce a get_clear variant of pfctl_get_rule() which allows rules
counters to be cleared.

MFC after:	4 weeks
Sponsored by:	Rubicon Communications, LLC ("Netgate")
Differential Revision:	https://reviews.freebsd.org/D29727
2021-04-14 13:33:02 +02:00
Alexander Motin
e49d3eb403 Fix race in case of device destruction.
During device destruction it is possible that open() succeed, but
fdevname() return NULL, that can't be assigned to string variable.
Fix that by adding explicit NULL check.

Also while there switch from fdevname() to fdevname_r().

Sponsored by:	iXsystems, Inc.
MFC after:	2 weeks
2021-04-13 11:25:27 -04:00
Kurosawa Takahiro
2aa21096c7 pf: Implement the NAT source port selection of MAP-E Customer Edge
MAP-E (RFC 7597) requires special care for selecting source ports
in NAT operation on the Customer Edge because a part of bits of the port
numbers are used by the Border Relay to distinguish another side of the
IPv4-over-IPv6 tunnel.

PR:		254577
Reviewed by:	kp
Differential Revision:	https://reviews.freebsd.org/D29468
2021-04-13 10:53:18 +02:00
Kurosawa Takahiro
600bd6ce06 pfctl, libpfctl: introduce pfctl_pool
Introduce pfctl_pool to be able to extend the pool part of the pf rule
without breaking the ABI.

Reviewed by:	kp
MFC after:	4 weeks
Differential Revision:	https://reviews.freebsd.org/D29721
2021-04-12 18:30:29 +02:00
Yuri Pankov
eeaf9d562f setclassenvironment: trim leading spaces in variable names
Trim leading spaces in variable names when the list is e.g.
pretty-formatted in /etc/login.conf or ~/.login_conf.

PR:		247947
Reviewed by:	allanjude
Differential Revision:	https://reviews.freebsd.org/D25649
2021-04-12 01:05:10 +03:00
Piotr Pawel Stefaniak
1fdd6934d5 getdirentries.2: remove unnecessary space 2021-04-11 11:17:01 +02:00
Konstantin Belousov
4d9128da54 rtld: make dlerror() thread-local
PR:	95339
Discussed with:	arichardson
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D29633
2021-04-10 17:33:34 +03:00
Konstantin Belousov
08bfbd4359 rtld: workaround for broken ABI
Right now, libthr does not initialize RtldLockInfo.rtli_version when calling
_rtld_thread_init(), which makes versioning the interface troublesome.

Add a workaround: if the calling object of _rtld_thread_init() exports
the "_pli_rtli_version" symbol, then consider rtli_version initialized.
Otherwise, forcibly set it to RTLI_VERSION_ONE, currently defined as
RTLI_VERSION.

Export "_pli_rtli_version" from libthr and properly initialize rtli_version.

Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D29633
2021-04-10 17:33:33 +03:00
Dimitry Andric
bae9fd0b33 Only use -fp-exception-behavior=maytrap on x86, for now
After 3b00222f15, it turns out that clang only supports strict
floating point semantics for SystemZ and x86 at the moment, while for
other architectures it is still experimental.

Therefore, only use -fp-exception-behavior=maytrap on x86 for now,
otherwise this option results in "error: overriding currently
unsupported use of floating point exceptions on this target
[-Werror,-Wunsupported-floating-point-opt]" on other architectures.

Fixes:		3b00222f15
PR:		254911
MFC after:	1 week
2021-04-10 16:02:58 +02:00
Kristof Provost
15ca662208 libnv: Use PICFLAG rather than -fPIC
Suggested by:	andrew
MFC after:	4 weeks
Sponsored by:	Rubicon Communications, LLC ("Netgate")
2021-04-10 15:43:28 +02:00
Dimitry Andric
3b00222f15 Avoid raising unexpected floating point exceptions in libm
When using clang with x86_64 CPUs that support AVX, some floating point
transformations may raise exceptions that would not have been raised by
the original code. To avoid this, use the -fp-exception-behavior=maytrap
flag, introduced in clang 10.0.0.

In particular, this fixes a number of test failures with ctanhf(3) and
ctanf(3), when libm is compiled with -mavx. An unexpected FE_INVALID
exception is then raised, because clang emits vdivps instructions to
perform certain divides. (The vdivps instruction operates on multiple
single-precision float operands simultaneously, but the exceptions may
be influenced by unused parts of the XMM registers. In this particular
case, it was calculating 0 / 0, which results in FE_INVALID.)

If -fp-exception-behavior=maytrap is specified however, clang uses
vdivss instructions instead, which work on one operand, and should not
raise unexpected exceptions.

Reported by:	olivier
Reviewed by:	arichardson
PR:		254911
MFC after:	1 week
Differential Revision: https://reviews.freebsd.org/D29686
2021-04-10 13:59:57 +02:00
Kristof Provost
ab5707a5cf libpfctl: Fix u_* counters
struct pf_rule had a few counter_u64_t counters. Those couldn't be
usefully comminicated with userspace, so the fields were doubled up in
uint64_t u_* versions.

Now that we use struct pfctl_rule (i.e. a fully userspace version) we
can safely change the structure and remove this wart.

Reviewed by:	glebius
MFC after:	4 weeks
Sponsored by:	Rubicon Communications, LLC ("Netgate")
Differential Revision:	https://reviews.freebsd.org/D29645
2021-04-10 11:16:03 +02:00
Kristof Provost
e9eb09414a libpfctl: Switch to pfctl_rule
Stop using the kernel's struct pf_rule, switch to libpfctl's pfctl_rule.
Now that we use nvlists to communicate with the kernel these structures
can be fully decoupled.

Reviewed by:	glebius
MFC after:	4 weeks
Sponsored by:	Rubicon Communications, LLC ("Netgate")
Differential Revision:	https://reviews.freebsd.org/D29644
2021-04-10 11:16:02 +02:00
Kristof Provost
0d71f9f36e pfctl: Move ioctl abstraction functions into libpfctl
Introduce a library to wrap the pf ioctl interface.

MFC after:	4 weeks
Sponsored by:	Rubicon Communications, LLC ("Netgate")
Differential Revision:	https://reviews.freebsd.org/D29562
2021-04-10 11:16:02 +02:00
Kristof Provost
0dd13c7743 libnv: Build PIC
Build libnv as position independent code so we can use it from shared
libraries.

MFC after:	4 weeks
Sponsored by:	Rubicon Communications, LLC ("Netgate")
Differential Revision:	https://reviews.freebsd.org/D29561
2021-04-10 11:16:01 +02:00
Konstantin Belousov
dbd2053026 libc dl_iterate_phdr(): dlpi_tls_data is wrong
This is the same change as d36d681615, but for libc static implementaion
of dl_iterate_phdr().

Reported by:	emacsray@gmail.com
PR:	254774
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D29623
2021-04-09 23:46:24 +03:00
Konstantin Belousov
ca46b5698e libc: implement __tls_get_addr() for static binaries
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D29623
2021-04-09 23:46:24 +03:00
Konstantin Belousov
06d8a116bd libc: add _get_tp() private function
which returns pointer to tcb

Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D29623
2021-04-09 23:46:24 +03:00
Konstantin Belousov
7f7489eba3 libc: include rtld.h into static implementations of rtld interface
and resolve naming conficts

Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D29623
2021-04-09 23:46:24 +03:00
Konstantin Belousov
93c14c55ec libc: constify dummy error message string for dlfcn
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D29623
2021-04-09 23:46:23 +03:00
Dimitry Andric
7702d940ec Avoid -pedantic warnings about using _Generic in __fp_type_select
When compiling parts of math.h with clang using a C standard before C11,
and using -pedantic, it will result in warnings similar to:

bug254714.c:5:11: warning: '_Generic' is a C11 extension [-Wc11-extensions]
  return !isfinite(1.0);
          ^
/usr/include/math.h:111:21: note: expanded from macro 'isfinite'
                    ^
/usr/include/math.h:82:39: note: expanded from macro '__fp_type_select'
                                      ^

This is because the block that enables use of _Generic is conditional
not only on C11, but also on whether the compiler advertises support for
C generic selections via __has_extension(c_generic_selections).

To work around the warning without having to pessimize the code, use the
__extension__ keyword, which is supported by both clang and gcc. While
here, remove the check for __clang__, as _Generic has been supported for
a long time by gcc too now.

Reported by:	yuri
PR:		254714
MFC after:	1 week
2021-04-08 18:20:32 +02:00
Andrew Turner
4d9488674f Remove the last users of ARM_TP_ADDRESS
This was only needed on 32-bit arm prior to ARMv6. As we only support
ARMv6 or later remove it.

Reviewed by:	mannu
Sponsored by:	Innovate UK
Differential Revision:	https://reviews.freebsd.org/D29624
2021-04-08 07:52:54 +00:00
Mariusz Zaborski
2b1d0c0087 fileargs: fix double caching of the same file
In situations when the current file name wasn't the first element on
the list we were cleaning the current name too early.
This might cause us to pre-cache the same file twice.
2021-04-07 21:16:37 +02:00
Konstantin Belousov
d36d681615 rtld dl_iterate_phdr(): dlpi_tls_data is wrong
dl_iterate_phdr() dlpi_tls_data should provide the TLS module segment
address, and not the TLS init segment address as it does now.

Reported by:	emacsray@gmail.com
PR:	254774
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2021-04-06 03:23:08 +03:00
Mark Johnston
3b666932d4 libc: Fix the WITH_HESIOD build
Reported by:	Daniel Braniss <danny@cs.huji.ac.il>
MFC after:	1 week
2021-04-05 16:30:00 -04:00
Konstantin Belousov
d218c6f6af amd64 fabs.S: use '.section .rodata' instead of '.rodata'
Seems to be an issue with older gnu as

Reported by:	rscheff
Sponsored by:	The FreeBSD Foundation
MFC after:	6 days
2021-04-04 22:33:22 +03:00
Konstantin Belousov
6d3f54fd09 amd64 fabs.S: put signbit into rodata instead of text
Noted by:	jrtc27
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2021-04-04 04:49:22 +03:00
Konstantin Belousov
4c2e9c35fb libc/<arch>/sys/cerror.S: fix typo
Sponsored by:	The FreeBSD Foundation
MFC after:	3 days
2021-04-04 01:00:57 +03:00
Konstantin Belousov
f548033818 amd64 fabs(3): move signbit to .text
There is no reason for signbit quad to be writeable.

Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2021-04-04 01:00:57 +03:00
Ed Maste
29e54af43e libc: use standard LF line endings, not CRLF 2021-04-03 16:20:07 -04:00
Edward Tomasz Napierala
bfd8b9b826 pam: add option to not prompt for password if it's set to empty
Add a new option to pam_unix(8), "emptyok", which makes it not prompt
for password, if it's set to an empty one.  It is similar to "nullok",
which makes it not prompt for password if the hash itself is empty.

Reviewed By:	markj
Sponsored By:	NetApp, Inc.
Sponsored By:	Klara, Inc.
Differential Revision:	https://reviews.freebsd.org/D27569
2021-04-03 13:05:50 +01:00
Vincenzo Maffione
ab639bb287 libnetmap: reset errno in nmreq_register_decode()
The reset is necessary at the beginning of the function, because of
the errno logic in the error path (set errno to EINVAL if not set).
If errno is already set when calling the function, and the function
fails, the previous errno value will be inherited.
2021-04-02 14:31:57 +00:00
Vincenzo Maffione
45c67e8f6b netmap: several typo fixes
No functional changes intended.
2021-04-02 07:01:20 +00:00
Renato Botelho
345c30a94f libfetch: Retry with proxy auth when server returns 407
PR:		220468
Submitted by:	Egil Hasting <egil.hasting@higen.org> (based on)
Reviewed by:	kevans, kp
Approved by:	kp
MFC after:	2 weeks
Sponsored by:	Rubicon Communications, LLC ("Netgate")
Differential Revision:	https://reviews.freebsd.org/D29533
2021-04-01 18:02:57 -03:00
Alex Richardson
85425bdc5a resolv_test: Fix racy exit check, remove mutexes, and reduce output
Instead of polling nleft[i] (without appropriate memory barriers!) and
using sleep() to detect the exit just call pthread_join() on all threads.

Also replace the use of a mutex that guarding the increments with atomic
fetch_add. This should reduce the runtime of this test on SMP systems.

Finally, remove all the debug printfs unless DEBUG_OUTPUT is set in
the environment.

Test Plan:	still fails sometimes on qemu (but maybe less often?)
Reviewed By:	jhb
Differential Revision: https://reviews.freebsd.org/D29390
2021-03-30 15:00:18 +01:00
Vincenzo Maffione
88024c4a52 libnetmap: restore changes in 26c29e743b
Commit f8113f0a65 accidentally
reverted some fixes introduced by 26c29e743b.
This change restores them.
2021-03-30 09:53:14 +00:00
Vincenzo Maffione
f8113f0a65 libnetmap: add support for the offset features
The companion libnetmap changes for the "offsets" kernel support added
in a6d768d845. This includes code to parse the "@offset=NNN"
option that can be appended to the port name by any nmport_* application.
Example:
   # pkt-gen -i 'netmap:em0@offset=16'
2021-03-29 16:38:37 +00:00
Piotr Pawel Stefaniak
b315a7296d sh(1): autocomplete commands
Without this patch, sh can autocomplete file names but not commands from
$PATH. Use libedit's facility to execute custom function for autocomplete,
but yield to the library's standard autocomplete function when cursor is
not at position 0.

Reviewed by:	bapt
Differential Revision:	https://reviews.freebsd.org/D29361
2021-03-29 11:14:27 +02:00
Leandro Lupori
9f50aa45be [PowerPC64] Port optimized strcpy to PPC64LE
Submitted by:           Bruno Larsen <bruno.larsen@eldorado.org.br>
Reviewed by:            luporl, bdragon (IRC)
MFC after:              1 week
Sponsored by:           Eldorado Research Institute (eldorado.org.br)
Differential Revision:  https://reviews.freebsd.org/D29067
2021-03-25 13:20:12 -03:00
Leandro Lupori
2f56128403 [PowerPC64] Enforce natural alignment in bcopy
POWER architecture CPUs (Book-S) require natural alignment for
cache-inhibited storage accesses. Since we can't know the caching model
for a page ahead of time, always enforce natural alignment in bcopy.
This fixes a SIGBUS when calling the function with misaligned pointers
on POWER7.

Submitted by:		Bruno Larsen <bruno.larsen@eldorado.org.br>
Reviewed by:		luporl, bdragon (IRC)
MFC after:		1 week
Sponsored by:		Eldorado Research Institute (eldorado.org.br)
Differential Revision:	https://reviews.freebsd.org/D28776
2021-03-25 13:07:01 -03:00
Alex Richardson
5245bf7b92 lib/libc/net/nsdispatch.c: Fix missing unlock and add locking annotations
The error cases (goto fin) of _nsdispatch were missing the unlock.

This change also drops the checks for __isthreaded since the pthread stubs
are already no-ops if threads are not being used. Dropping those conditionals
allows clang's thread safety analysis to deal with the file and also makes
the code a bit more readable. While touching the file also add a few more
assertions in debug mode that the right locks are held.

Reviewed By:	markj
Differential Revision: https://reviews.freebsd.org/D29372
2021-03-25 11:22:10 +00:00
Alex Richardson
dd5ed53a2f RISC-V: Fix feenableexcept return value
The man page says "The feenableexcept(), fedisableexcept(), and
fegetexcept() functions return a bitmap of the exceptions that were
unmasked prior to the call.", so we should return zero not -1.

Reviewed By:	mhorne
MFC after:	3 days
Differential Revision: https://reviews.freebsd.org/D29386
2021-03-25 11:16:20 +00:00
Dmitry Wagin
9bd7345212 libc: Some enhancements to syslog(3)
- Defined MAXLINE constant (8192 octets by default instead 2048) for
  centralized limit setting up. It sets maximum number of characters of
  the syslog message. RFC5424 doesn't limit maximum size of the message.
  Named after MAXLINE in syslogd(8).
- Fixed size of fmt_cpy buffer up to MAXLINE for rendering formatted
  (%m) messages.
- Introduced autoexpansion of sending socket buffer up to MAXLINE.

MFC after:	1 month
Differential Revision:	https://reviews.freebsd.org/D27205
2021-03-23 12:49:58 -04:00
Alex Richardson
15211f1950 Silence unused parameter warnings in the RISC-V fenv.h
After increasing the lib/msun/tests WARNS to 6, this triggers a
compilation error for RISC-V.

Fixes:		87d65c747a ("lib/msun: Allow building tests with WARNS=6")
Reported by:	Jenkins
2021-03-22 17:49:24 +00:00
Alex Richardson
f33b4fa2f0 lib/msun/tests: Drop WARNS=6
This is the default already, so there is no need to override it.

Reported by:	kevans
2021-03-22 16:57:43 +00:00
Alex Richardson
dbb2d6f5e1 lib/msun/tests: Re-enable csqrt_test on AArch64
The LLVM bug was fixed a long time ago and with D29076 this test actually
passes now.

Reviewed By:	andrew
Differential Revision: https://reviews.freebsd.org/D29092
2021-03-22 16:57:43 +00:00
Alex Richardson
ce88eb476b Fix lib/msun/tests/csqrt_test on platforms with 128-bit long double
If long double has more than 64 mantissa bits, using uint64_t to hold the
mantissa bits will truncate the value and result in test failures. To fix
this problem use __uint128_t since all platforms that have
__LDBL_MANT_DIG__ > 64 also have compiler support for 128-bit integers.

Reviewed By:	rlibby
Differential Revision: https://reviews.freebsd.org/D29076
2021-03-22 16:57:43 +00:00
Alex Richardson
7f5693d053 Fix unused functions in invtrig_test.c
I only tested the WARNS=6 change on AArch64 and AMD64, but this file has
unused functions for architectures with LDBL_PREC == 53.

While touching this file change the LDBL_PREC == 53 checks to i386 checks.
The long double tests should only be disabled for i386 (due to the rather
odd rounding mode that it uses) not all architectures where long double
is the same as double.

PR:		205449
Fixes:		87d65c747a ("lib/msun: Allow building tests with WARNS=6")
Reported by:	Jenkins
2021-03-22 13:06:02 +00:00
Alex Richardson
c8c62548bf Don't add -Winline for WARNS=6
This warning is very rarely useful (inline is a hint and not mandatory).
This flag results in many warnings being printed when compiling C++
code that uses the standard library with GCC.

This flag was originally added in back in r94332 but the flag is a no-op
in Clang ("This diagnostic flag exists for GCC compatibility, and has no
effect in Clang"). Removing it should make the GCC build output slightly
more readable.

Reviewed By:	jrtc27, imp
Differential Revision: https://reviews.freebsd.org/D29235
2021-03-22 11:55:45 +00:00
Alex Richardson
6ccdee8ab5 lib/msun/tests: Add more debug output to fenv_test.c
Output a hex dump of the current fenv and the expected value to allow
comparing them without having to resort to interactive use of GDB.
2021-03-22 11:55:07 +00:00
Alex Richardson
2b9dbcd390 lib/msun/tests: Skip fenv_test:masking if exceptions can't be trapped
Some CPUs (e.g. AArch64 QEMU) cannot trap on floating point exceptions and
therefore ignore the writes to the floating point control register inside
feenableexcept(). If no exceptions are enabled after
feenableexcept(FE_ALL_EXCEPT), we can assume that the CPU does not
support exceptions and we can then skip the test.

Reviewed By:	dim
Differential Revision: https://reviews.freebsd.org/D29095
2021-03-22 11:55:07 +00:00
Alex Richardson
87d65c747a lib/msun: Allow building tests with WARNS=6
The only change needed is to mark a few variables as static.
2021-03-22 11:55:07 +00:00
Alex Richardson
b424e0038a Improve test messages for msun tests
Also print the mismatched values when numbers compare not equal.

Reviewed By:	dim
Differential Revision: https://reviews.freebsd.org/D29091
2021-03-22 11:55:06 +00:00
Alex Richardson
b358534ab1 Remove XFAILs from fmaxmin test
These appears to have been resolved by compiling the test with -fno-builtin
and/or using a newer compiler.

PR:		208703
Reviewed By:	ngie
Differential Revision: https://reviews.freebsd.org/D28884
2021-03-22 11:55:06 +00:00
Alex Richardson
133bc64507 Convert the msun tests to ATF
This provides better error messages that just an assertion failure and
also makes it easier to mark individual tests as XFAIL.
It was also helpful when coming up with D28786 and D28787.

Differential Revision: https://reviews.freebsd.org/D28798
2021-03-22 11:55:06 +00:00
D Scott Phillips
f8a6ec2d57 bhyve: support relocating fbuf and passthru data BARs
We want to allow the UEFI firmware to enumerate and assign
addresses to PCI devices so we can boot from NVMe[1]. Address
assignment of PCI BARs is properly handled by the PCI emulation
code in general, but a few specific cases need additional support.
fbuf and passthru map additional objects into the guest physical
address space and so need to handle address updates. Here we add a
callback to emulated PCI devices to inform them of a BAR
configuration change. fbuf and passthru then watch for these BAR
changes and relocate the frame buffer memory segment and passthru
device mmio area respectively.

We also add new VM_MUNMAP_MEMSEG and VM_UNMAP_PPTDEV_MMIO ioctls
to vmm(4) to facilitate the unmapping needed for addres updates.

[1]: https://github.com/freebsd/uefi-edk2/pull/9/

Originally by:	scottph
MFC After:	1 week
Sponsored by:	Intel Corporation
Reviewed by:	grehan
Approved by:	philip (mentor)
Differential Revision:	https://reviews.freebsd.org/D24066
2021-03-19 11:04:36 +08:00
Bjoern A. Zeeb
2ad93dade7 lib80211: Start adding 11ac ETSI bits to regdomain.xml
Summary:
This change currently (partially) duplicates AC1 freqbands as AC2
as they are not fully overlapping.
It then adds the 11ac netband to the "etsi" domain including
"indoor" and "dfs" flags, which we can deal with, as well as
appropriate (round down) maxpower values.
Comments are left for the actual frequency bands as we do use the
centerfreq for the first/last (chansep sized) channel in the
freqband and their "id" name, which can be confusing.

Sponsored-by:	Rubicon Communications, LLC ("Netgate")
Reviewed-by:	philip, adrian
MFC-after:	2 weeks
Differential Revision: https://reviews.freebsd.org/D25999
2021-03-18 11:09:10 +00:00
Baptiste Daroussin
b75fb12b68 terminfo: add more path to lookup for the database
In preparation for the move of the database out of base, add one more
path to lookup
Now the default lookup path is

1. base
2. localbase
3. localbase special site for custom terminfo (for ports adding custom
terminfo and avoid potential collision with the general db)
4. termcap

The plan is to allow the terminfo-db to be installed by end users via
a package for people willing to have the support for features from
this database provides. And keep the fallback on termcap for people who
don't want to hear about the terminfo db or how to configure the terminal
if it uses by default the features proposed in the definitions
of the terminfo db.

the first look up path is a window open for a proposal made by glebius@
consisting on creating a tool where the user at install time will select
the feature it want for a given terminal and generate its configurations
based on that. I won't work on it, but it is now posssible and there is
a path where to store those definitions
2021-03-18 10:29:43 +01:00
Emmanuel Vadot
500f4659d7 Convert libs with pc files to use PCFILES
Now the .pc ends up in the correct package (-dev)

Reviewed by:	bapt, emaste
Differential Revision:	https://reviews.freebsd.org/D29172
MFC after:      2 weeks
2021-03-16 07:13:07 +01:00
Gordon Bergling
5666643a95 Fix some common typos in comments
- occured -> occurred
- normaly -> normally
- controling -> controlling
- fileds -> fields
- insterted -> inserted
- outputing -> outputting

MFC after:	1 week
2021-03-13 18:26:15 +01:00
Alex Richardson
05eac56a04 lib/msun: Fix x86 GCC6 build after 221622ec0c
Apparently GCC only supports arithmetic expressions that use static
const variables in initializers starting with GCC8. To keep older
versions happy use a macro instead.

Fixes:		221622ec0c ("lib/msun: Avoid FE_INEXACT for x86 log2l/log10l")
Reported by:	Jenkins
Reviewed By:	imp
Differential Revision: https://reviews.freebsd.org/D29233
2021-03-12 18:44:44 +00:00
Alex Richardson
fe525d3f91 Allow using sanitizers for ssp tests with out-of-tree compiler
With an out-of-tree Clang, we can use the -resource-dir flag when linking
to point it at the runtime libraries from the current SYSROOT.
This moves the path to the clang-internal library directory to a separate
.mk file that can be used by Makefiles that want to find the sanitizer
libraries. I intend to re-use this .mk file for my upcoming changes that
allow building the entire base system with ASAN/UBSAN/MSAN.

Reviewed By:	dim
Differential Revision: https://reviews.freebsd.org/D28852
2021-03-12 17:15:33 +00:00
Alex Richardson
34cc08e336 Save all fpcr/fpsr bits in the AArch64 fenv_t
The existing code masked off all bits that it didn't know about. To be
future-proof, we should save and restore the entire fpcr/fpsr registers.
Additionally, the existing fesetenv() was incorrectly setting the rounding
mode in fpsr instead of fpcr.

This patch stores fpcr in the high 32 bits of fenv_t and fpsr in the low
bits instead of trying to interleave them in a single 32-bit field.

Technically, this is an ABI break if you re-compile parts of your code or
pass a fenv_t between DSOs that were compiled with different versions
of fenv.h. However, I believe we should fix this since the existing code
was broken and passing fenv_t across DSOs should rarely happen.

Reviewed By:	andrew
Differential Revision: https://reviews.freebsd.org/D29160
2021-03-12 17:01:41 +00:00
Alex Richardson
221622ec0c lib/msun: Avoid FE_INEXACT for x86 log2l/log10l
This fixes tests/lib/msun/logarithm_test after compiling the test with
-fno-builtin (D28577). Adding invln10_lo + invln10_10 results in
FE_INEXACT (for all inputs) and the same for the log2l invln2_lo + invln2_hi.
This patch avoids FE_INEXACT (for exact results such as 0) by defining a
constant and using that.

Reviewed By:	dim
Differential Revision: https://reviews.freebsd.org/D28786
2021-03-08 09:39:32 +00:00
Robert Wing
6bb140e3ca bhyvectl: print a better error message when vm_open() fails
Use errno to print a more descriptive error message when vm_open() fails

libvmm: preserve errno when vm_device_open() fails

vm_destroy() squashes errno by making a dive into sysctlbyname() - we
can safely skip vm_destroy() here since it's not doing any critical
clean up at this point. Replace vm_destroy() with a free() call.

PR:             250671
MFC after:      3 days
Submitted by:   marko@apache.org
Reviewed by:	grehan
Differential Revision:	https://reviews.freebsd.org/D29109
2021-03-06 21:19:30 -09:00
Dimitry Andric
772c631af8 Add a few missed files to libclang_rt.profile-<arch>.a
Otherwise, programs compiled with -fprofile-instr-generate will
encounter undefined symbol errors during linking, for example
__llvm_profile_counter_bias, lprofSetRuntimeCounterRelocation and a few
others were missing from the profile library.

Reported by:	ota@j.email.ne.jp
PR:		254001
MFC after:	3 days
2021-03-05 21:07:07 +01:00
Ryan Moeller
c4ba4aa547 libifconfig: Overhaul ifconfig_media_* interfaces
Define an ifmedia_t type to use for ifmedia words.

Add ifconfig_media_lookup_* functions to lookup ifmedia words by name.

Get media options as an array of option names rather than formatting it
as a comma-delimited list into a buffer.

Sprinkle const on static the static description tables for peace of
mind.

Don't need to zero memory allocated by calloc.

Reviewed by:	kp
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D29029
2021-03-05 04:15:55 -05:00
Alan Somers
f05b724ecb Modernize geom_stats_snapshot_get
* A logically useless memset() is used to fault in some memory pages.
  Change it to explicit_bzero so the compiler won't eliminate it.

* Eliminate the second memset.  It made sense in the days of the Big
  Kernel Lock, but not in the days of fine-grained SMP and especially
  not in the days of VDSO.

MFC after:	2 weeks
Sponsored by:	Axcient
Reviewed by:	phk
Differential Revision:	https://reviews.freebsd.org/D29047
2021-03-04 07:45:48 -07:00
Fernando Apesteguía
3457dbd52b mq_open(2): Fix xref to mq_unlink(2)
mq_unlink(2) was added in acab1d58be

PR: 215611
Reported by: rwatson@FreeBSD.org
Approved by: gbe@ (mentor)
Differential Revision:	https://reviews.freebsd.org/D28913
2021-03-04 13:32:42 +01:00
Jung-uk Kim
483c6da3a2 libkvm: Refine the previous commit (645eaa2cca)
Resort free()'ing memory in kvm_close() to make it easier to MFC.

MFC after:	3 days
2021-03-03 18:50:45 -05:00
Jung-uk Kim
645eaa2cca libkvm: Plug couple of memory leaks and check possible calloc(3) failure
First, r204494 introduced dpcpu_off in struct __kvm and it was allocated
from _kvm_dpcpu_init() but it was not free(3)'ed from kvm_close(3).
Second, r291406 introduced kvm_nlist2(3) and converted kvm_nlist(3) to
use the new function but it did not free the temporary buffer.
Also, check possible calloc(3) failure while I am in the neighborhood.

MFC after:	3 days
Differential Revision:	https://reviews.freebsd.org/D29019
2021-03-03 18:10:00 -05:00
Andreas Bjornestad
25352f9fda Minor grammar nit
PR:		docs/253975
2021-03-03 16:20:29 +00:00
Ryan Moeller
80545a16df libifconfig: Fix typo in symbol map
MFC after:	1 week
2021-03-02 21:19:42 -05:00
Alan Somers
ab63da3564 Speed up geom_stats_resync in the presence of many devices
The old code had a O(n) loop, where n is the size of /dev/devstat.
Multiply that by another O(n) loop in devstat_mmap for a total of
O(n^2).

This change adds DIOCGMEDIASIZE support to /dev/devstat so userland can
quickly determine the right amount of memory to map, eliminating the
O(n) loop in userland.

This change decreases the time to run "gstat -bI0.001" with 16,384 md
devices from 29.7s to 4.2s.

Also, fix a memory leak first reported as PR 203097.

Sponsored by:	Axcient
Reviewed by:	mav, imp
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D28968
2021-03-02 18:33:45 -07:00
Ryan Moeller
e175b519a6 lib/flua/libjail: Allow empty params table
The name or jid always gets added to the params, and that's enough to
avoid allocating a 0 length params array.

Reported by:	kevans
Reviewed by:	kevans
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D28778
2021-03-02 18:32:22 -05:00
Konstantin Belousov
20e91ca36a open(2): Remove O_BENEATH and AT_BENEATH
with the reasoning that the flags did not worked properly, and were not
shipped in a release.

O_RESOLVE_BENEATH is kept as useful.

Reviewed by:	markj
Tested by:	arichardson, pho
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D28907
2021-03-02 20:16:55 +02:00
Konstantin Belousov
600756afb5 fhlink(2): the syscalls do not take flag
Reviewed by:	markj
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D28907
2021-03-02 20:16:55 +02:00
Ed Maste
7f72497ef7 libc: Use musl's optimized strchr and strchrnul
Parentheses added to HASZERO macro to avoid a GCC warning, and formatted
with clang-format as we have adopted these and don't consider them
'contrib' code.

Obtained from:	musl (snapshot at commit 4d0a82170a25)
Reviewed by:	kib (libc integration), mjg (both earlier)
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D17630
2021-03-01 21:09:59 -05:00
Kyle Evans
60c4ec806d jail: allow root to implicitly widen its cpuset to attach
The default behavior for attaching processes to jails is that the jail's
cpuset augments the attaching processes, so that it cannot be used to
escalate a user's ability to take advantage of more CPUs than the
administrator wanted them to.

This is problematic when root needs to manage jails that have disjoint
sets with whatever process is attaching, as this would otherwise result
in a deadlock. Therefore, if we did not have an appropriate common
subset of cpus/domains for our new policy, we now allow the process to
simply take on the jail set *if* it has the privilege to widen its mask
anyways.

With the new logic, root can still usefully cpuset a process that
attaches to a jail with the desire of maintaining the set it was given
pre-attachment while still retaining the ability to manage child jails
without jumping through hoops.

A test has been added to demonstrate the issue; cpuset of a process
down to just the first CPU and attempting to attach to a jail without
access to any of the same CPUs previously resulted in EDEADLK and now
results in taking on the jail's mask for privileged users.

PR:		253724
Reviewed by:	jamie (also discussed with)
MFC after:	3 days
Differential Revision:	https://reviews.freebsd.org/D28952
2021-03-01 12:38:31 -06:00
Jessica Clarke
066dab17e7 riscv: Fix whitespace issues in fabs added in 524b018d20 2021-03-01 15:19:36 +00:00
Alex Richardson
0e4ff0acbe AArch64: Don't set flush-subnormals-to-zero flag on startup
This flag has been set on startup since 65618fdda0.
However, This causes some of the math-related tests to fail as they report
zero instead of a tiny number. This fixes at least
/usr/tests/lib/msun/ldexp_test and possibly others.
Additionally, setting this flag prevents printf() from printing subnormal
numbers in decimal form.
See also https://www.openwall.com/lists/musl/2021/02/26/1

PR:		253847
Reviewed By:	mmel
Differential Revision: https://reviews.freebsd.org/D28938
2021-03-01 14:27:30 +00:00
Alex Richardson
f5542795b9 s_scalbn.c: Add missing float.h include
This caused LDBL_MANT_DIG to not be defined and therefore the scalbnl
alias was not being emitted for double==long double platforms.

Fixes:		760b2ffc ("Update scalbn* functions to the musl versions")
Reported by:	Jenkins
2021-03-01 14:22:47 +00:00
Alex Richardson
79fbd48378 Fix ncurses bootstrap on macOS
Avoid including machine/console.h when bootstrapping on non-FreeBSD.
2021-03-01 13:22:15 +00:00
Alex Richardson
524b018d20 riscv: Add a soft-float implementation of fabs()
We could just use a C implementation using __builtin_fabs(), but using
this assembly version guarantees that there is no additional prolog/epilog
code. Additionally, clang generates worse code for masking off the top bit
than GCC: https://bugs.llvm.org/show_bug.cgi?id=49377.

This fixes the RISCV64 softfloat world build after cf97d2a1da. That commit
added -fno-builtin to the msun tests which resulted in the first references to
fabs (previously the compiler inlined all calls).

Reviewed By:	dim
Reported by:	mjg
Differential Revision: https://reviews.freebsd.org/D28994
2021-03-01 12:53:46 +00:00
Alex Richardson
aac21e66f9 Also use the musl scalbn code for ldexp()
Instead of copying the code as 00646ca204
did, include the implementation with the function name re-defined.
2021-03-01 12:53:46 +00:00
Alex Richardson
760b2ffc55 Update scalbn* functions to the musl versions
The only diff compared to musl is a minor change to scalbnl() to replace
musl's union ldshape with union IEEEl2bits.
This fixes the scalbn tests on non-x86 (since x86 has an assembly version
that is used instead).

Musl commit messages:
commit 8c44a060243f04283ca68dad199aab90336141db
Author: Szabolcs Nagy <nsz@port70.net>
Date:   Mon Apr 3 02:38:13 2017 +0200

    fix scalbn when result is in the subnormal range

    in nearest rounding mode scalbn could introduce double rounding error
    when an intermediate value and the final result were both in the
    subnormal range e.g.

      scalbn(0x1.7ffffffffffffp-1, -1073)

    returned 0x1p-1073 instead of 0x1p-1074, because the intermediate
    computation got rounded to 0x1.8p-1023.

    with the fix an intermediate value can only be in the subnormal range
    if the final result is 0 which is correct even after double rounding.
    (there still can be two roundings so signals may be raised twice, but
    that's only observable with trapping exceptions which is not supported.)

commit 2eaed464e2080d8321d3903b71086a1ecfc4ee4a
Author: Szabolcs Nagy <nsz@port70.net>
Date:   Wed Sep 4 15:52:54 2013 +0000

    math: use float_t and double_t in scalbnf and scalbn

    remove STRICT_ASSIGN (c99 semantics is assumed) and use the conventional
    union to prepare the scaling factor (so libm.h is no longer needed)

commit 1b77b9072f374bd26eb0574b83a0d5f18d75ec60
Author: Szabolcs Nagy <nsz@port70.net>
Date:   Thu Aug 15 10:07:46 2013 +0000

    math: minor scalbn*.c simplification

commit c4359e01303da2755fe7e8033826b132eb3659b1
Author: Szabolcs Nagy <nsz@port70.net>
Date:   Tue Nov 13 10:55:35 2012 +0100

    math: excess precision fix modf, modff, scalbn, scalbnf

    old code was correct only if the result was stored (without the
    excess precision) or musl was compiled with -ffloat-store.
    now we use STRICT_ASSIGN to work around the issue.
    (see note 160 in c11 section 6.8.6.4)

commit 666271c105e4137bdfa195e217799d74143370d4
Author: Szabolcs Nagy <nsz@port70.net>
Date:   Tue Nov 13 10:30:40 2012 +0100

    math: fix scalbn and scalbnf on overflow/underflow

    old code was correct only if the result was stored (without the
    excess precision) or musl was compiled with -ffloat-store.
    (see note 160 in n1570.pdf section 6.8.6.4)

commit 8051e08e10d2b739fcfcbc6bc7466e8d77fa49f1
Author: nsz <nsz@port70.net>
Date:   Mon Mar 19 10:54:07 2012 +0100

    simplify scalbn*.c implementations

    The old scalbn.c was wrong and slow, the new one is just slow.
    (scalbn(0x1p+1023,-2097) should give 0x1p-1074, but the old code gave 0)

Reviewed By:	dim
Differential Revision: https://reviews.freebsd.org/D28872
2021-03-01 12:53:45 +00:00
Brandon Bergren
384ee7cc6e [PowerPC] [PowerPCSPE] Fix multiple issues in fpsetmask().
Building R on powerpc64 exposed a problem in fpsetmask() whereby we
were not properly clamping the provided mask to the valid range.

This same issue affects powerpc and powerpcspe.

Properly limit the range of bits that can be set via fpsetmask().

While here, use the correct fp_except_t type instead of fp_rnd_t.

Reported by:	pkubaj, jhibbits (in IRC)
Sponsored by:	Tag1 Consulting, Inc.
MFC after:	1 week
2021-02-28 21:11:29 -06:00
Brandon Bergren
dd95b39235 [PowerPC64] Fix multiple issues in fpsetmask().
Building R exposed a problem in fpsetmask() whereby we were not properly
clamping the provided mask to the valid range.

R initilizes the mask by calling fpsetmask(~0) on FreeBSD. Since we
recently enabled precise exceptions, this was causing an immediate
SIGFPE because we were attempting to set invalid bits in the fpscr.

Properly limit the range of bits that can be set via fpsetmask().

While here, use the correct fp_except_t type instead of fp_rnd_t.

Reported by:	pkubaj (in IRC)
MFC after:	1 week
Sponsored by:	Tag1 Consulting, Inc.
2021-02-28 20:37:48 -06:00
Ryan Moeller
b12a960e42 libifconfig: Add a function to get down reason
For use in ifconfig.

Reviewed by:	kp
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D28991
2021-02-28 16:43:54 -05:00
Ryan Moeller
1d9ba697f9 libifconfig: Set error in ifconfig_get_groups
This should return -1 with OTHER/ENOMEM set in the handle when malloc
fails, like everywhere else in libifconfig.

Reviewed by:	kp
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D28964
2021-02-27 18:12:23 -05:00
Baptiste Daroussin
d2eb5dbd7d ncurses: fix generation of term.h
All variable were not properly expanded

Submitted by:	cy (initial version)
2021-02-25 22:49:20 +01:00
Baptiste Daroussin
e6b8135227 ncurses: fix patch date
Submitted by:	cy
2021-02-25 22:47:44 +01:00
Ryan Moeller
b7109c3cfd libifconfig: Add missing symbols to map
Regenerate the list of generated symbols for libifconfig:

```
grep -hr ^ifconfig_sfp_ /usr/obj/usr/src/amd64.amd64/lib/libifconfig \
| sed 's/(.*/;/' | sort -u
```

Spotted by build failures caused by a missing symbol while working on
upgrading libifconfig from internal to private.

Reviewed by:	markj
Differential Revision:	https://reviews.freebsd.org/D28927
2021-02-25 13:58:33 -05:00
Baptiste Daroussin
304bc76605 ncurses: update configuration header after update 2021-02-25 19:28:31 +01:00
Baptiste Daroussin
705d726338 ncurses: ensure we prefer the generated ncurses_dll.h 2021-02-25 19:27:29 +01:00
Renato Botelho
220c6d922a ncurses: Silence MKuserdefs.sh call
Remove -x flag from sh used to execute MKuserdefs.sh during ncurses
build and stop polluting make -s output

Reviewed by:		bapt, manu
Approved by:		bapt
Differential Revision:	https://reviews.freebsd.org/D28885
2021-02-25 15:22:17 -03:00
Baptiste Daroussin
61f66a1f44 ncurses: Add support for terminfo database
Along with the termcap database, ncurses will now lookup for the
terminfo database, note that the terminfo database is being looked
up first and then it fallsback on the termcap one.

While here drop our custom reader for the termcap database, over the
time it is needed maintenance to be able to catchup with changes on ncurses
side.

Install the ncurses tools which are needed to deal with the terminfo
database: tic, infocmp, toe

Replace our termcap only aware tools with the ncurses counterpart:
tput, tabs, tset, clear and reset

In particular they can your the extra capabilities described in the
terminfo database, which does not exist in termcap

Note that to add a new terminfo information to the database from ports
the ports will just need to add their extra information into:
/usr/local/share/site-terminfo/<firstletteroftheterm>/<term>

Tested by:	jbeich, manu
2021-02-25 14:25:11 +01:00
Mark Johnston
6ab923cbca pam_login_access: Fix negative entry matching logic
PR:		252194
Approved by:	so
Security:	CVE-2020-25580
Security:	FreeBSD-SA-21:03.pam_login_access
2021-02-23 19:14:05 -05:00
Dimitry Andric
cf97d2a1da Build lib/msun tests with compiler builtins disabled
This forces the compiler to emit calls to libm functions, instead of
possibly substituting pre-calculated results at compile time, which
should help to actually test those functions.

Reviewed by:	emaste, arichardson, ngie
Differential Revision: https://reviews.freebsd.org/D28577
MFC after:	3 days
2021-02-23 21:10:01 +01:00
Konstantin Belousov
3ae8d83d04 Remove __NO_TLS.
All supported platforms support thread-local vars and __thread.

Reviewed by:	emaste
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D28796
2021-02-23 20:08:10 +02:00
Alex Richardson
f3f7b0dc06 lib/msun/ctrig_test: Print the mismatched values on failure
This test fails on aarch64 but debugging it is difficult without the
results being printed.

Now the failing AArch64 test prints:
root@freebsd-aarch64:/nfsroot/usr/tests/lib/msun # kyua debug ctrig_test:test_nan_inputs
*** Check failed: /local/scratch/alr48/cheri/freebsd/lib/msun/tests/ctrig_test.c:211: (ctan)(_d) (0 + -1 I) != expected (-0 + -1 I)
*** Check failed: /local/scratch/alr48/cheri/freebsd/lib/msun/tests/ctrig_test.c:211: ctan fetestexcept((0x00000002 | 0x00000010 | 0x00000001 | 0x00000004 | 0x00000008)) (0x10) != 0
*** Check failed: /local/scratch/alr48/cheri/freebsd/lib/msun/tests/ctrig_test.c:211: (ctan)(_d) (0 + 1 I) != expected (-0 + 1 I)
*** Check failed: /local/scratch/alr48/cheri/freebsd/lib/msun/tests/ctrig_test.c:211: ctan fetestexcept((0x00000002 | 0x00000010 | 0x00000001 | 0x00000004 | 0x00000008)) (0x10) != 0
*** Check failed: /local/scratch/alr48/cheri/freebsd/lib/msun/tests/ctrig_test.c:211: (ctanf)(_d) (0 + -1 I) != expected (-0 + -1 I)
*** Check failed: /local/scratch/alr48/cheri/freebsd/lib/msun/tests/ctrig_test.c:211: ctanf fetestexcept((0x00000002 | 0x00000010 | 0x00000001 | 0x00000004 | 0x00000008)) (0x10) != 0
*** Check failed: /local/scratch/alr48/cheri/freebsd/lib/msun/tests/ctrig_test.c:211: (ctanf)(_d) (0 + 1 I) != expected (-0 + 1 I)
*** Check failed: /local/scratch/alr48/cheri/freebsd/lib/msun/tests/ctrig_test.c:211: ctanf fetestexcept((0x00000002 | 0x00000010 | 0x00000001 | 0x00000004 | 0x00000008)) (0x10) != 0
*** Check failed: /local/scratch/alr48/cheri/freebsd/lib/msun/tests/ctrig_test.c:217: (ctanh)(_d) (1 + 0 I) != expected (1 + -0 I)
*** Check failed: /local/scratch/alr48/cheri/freebsd/lib/msun/tests/ctrig_test.c:217: ctanh fetestexcept((0x00000002 | 0x00000010 | 0x00000001 | 0x00000004 | 0x00000008)) (0x10) != 0
*** Check failed: /local/scratch/alr48/cheri/freebsd/lib/msun/tests/ctrig_test.c:217: (ctanhf)(_d) (1 + 0 I) != expected (1 + -0 I)
*** Check failed: /local/scratch/alr48/cheri/freebsd/lib/msun/tests/ctrig_test.c:217: ctanhf fetestexcept((0x00000002 | 0x00000010 | 0x00000001 | 0x00000004 | 0x00000008)) (0x10) != 0
*** Check failed: /local/scratch/alr48/cheri/freebsd/lib/msun/tests/ctrig_test.c:217: (ctanh)(_d) (-1 + 0 I) != expected (-1 + -0 I)
*** Check failed: /local/scratch/alr48/cheri/freebsd/lib/msun/tests/ctrig_test.c:217: ctanh fetestexcept((0x00000002 | 0x00000010 | 0x00000001 | 0x00000004 | 0x00000008)) (0x10) != 0
*** Check failed: /local/scratch/alr48/cheri/freebsd/lib/msun/tests/ctrig_test.c:217: (ctanhf)(_d) (-1 + 0 I) != expected (-1 + -0 I)
*** Check failed: /local/scratch/alr48/cheri/freebsd/lib/msun/tests/ctrig_test.c:217: ctanhf fetestexcept((0x00000002 | 0x00000010 | 0x00000001 | 0x00000004 | 0x00000008)) (0x10) != 0
ctrig_test:test_nan_inputs  ->  failed: 16 checks failed; see output for more details

Reviewed By:	ngie
Differential Revision: https://reviews.freebsd.org/D28788
2021-02-23 09:39:40 +00:00
Mateusz Guzik
7f06b217c5 amd64: import asm strlen into libc
Reviewed by:	kib
Differential Revision:	https://reviews.freebsd.org/D28845
2021-02-23 00:09:55 +00:00
Alex Richardson
ba2cfa80e1 Fix makefs bootstrap after d485c77f20
The makefs msdosfs code includes fs/msdosfs/denode.h which directly uses
struct buf from <sys/buf.h> rather than the makefs struct m_buf.
To work around this problem provide a local denode.h that includes
ffs/buf.h and defines buf as an alias for m_buf.

Reviewed By:	kib, emaste
Differential Revision: https://reviews.freebsd.org/D28835
2021-02-22 17:55:45 +00:00
Alex Richardson
1ec3feb648 Update libm tests from NetBSD
I did this without a full vendor update since that would cause too many
conflicts. Since these files now almost match the NetBSD sources the
next git subtree merge should work just fine.

Reviewed By:	lwhsu
Differential Revision: https://reviews.freebsd.org/D28797
2021-02-22 17:41:04 +00:00
Konstantin Belousov
d485c77f20 Remove #define _KERNEL hacks from libprocstat
Make sys/buf.h, sys/pipe.h, sys/fs/devfs/devfs*.h headers usable in
userspace, assuming that the consumer has an idea what it is for.
Unhide more material from sys/mount.h and sys/ufs/ufs/inode.h,
sys/ufs/ufs/ufsmount.h for consumption of userspace tools, with the
same caveat.

Remove unacceptable hack from usr.sbin/makefs which relied on sys/buf.h
being unusable in userspace, where it override struct buf with its own
definition.  Instead, provide struct m_buf and struct m_vnode and adapt
code to use local variants.

Reviewed by:	mckusick
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
Differential revision:	https://reviews.freebsd.org/D28679
2021-02-21 11:38:21 +02:00
Guangyuan Yang
504e64af32 pwrite(2): add a BUGS section
Add a BUGS section about using pwrite(2) when O_APPEND is set on the fd.

MFC after:	3 days
Submitted by:	Ka Ho Ng <khng300@gmail.com>
Reviewed by:	gbe, yuripv
Differential Revision:	https://reviews.freebsd.org/D28372
2021-02-20 08:05:43 +00:00
Jamie Gritton
d4380c0cdd jail: Change both root and working directories in jail_attach(2)
jail_attach(2) performs an internal chroot operation, leaving it up to
the calling process to assure the working directory is inside the jail.

Add a matching internal chdir operation to the jail's root.  Also
ignore kern.chroot_allow_open_directories, and always disallow the
operation if there are any directory descriptors open.

Reported by:    mjg
Approved by:    markj, kib
MFC after:      3 days
2021-02-19 14:13:35 -08:00
Fernando Apesteguía
acab1d58be mq_unlink(3): Add manual page
Summary: Add a succinct manual page for mq_unlink

Mostly borrowed from https://pubs.opengroup.org/onlinepubs/9699959099/ and
hence, the disclaimer note at the bottom.

PR: 243174
Reported by: rfg-freebsd@tristatelogic.com
Reviewed by: gbe@, yuripv@
Approved by: gbe@ (mentor), yuripv@
Differential Revision: https://reviews.freebsd.org/D28593
2021-02-18 18:56:52 +01:00
Fernando Apesteguía
0577e39bec Fix ibnd_* manpages sources
Some ibnd_* manpages source other manpages from a `man3/` directory when it
should reference the pages in the current directory.

Instead of modifying contributing sources and using `.so` (discouraged by
mandoc(1)) use MLINKS in the proper Makefile and do not install the affected
manpages.

PR: 237693
Reported by: wosch@FreeBSD.org
Reviewed by: gbe@ (mentor) yuripv@
Approved by: gbe@ (mentor) yuripv@
Differential Revision: https://reviews.freebsd.org/D28727
2021-02-18 15:59:34 +01:00
Alex Richardson
fa2528ac64 Use atomic loads/stores when updating td->td_state
KCSAN complains about racy accesses in the locking code. Those races are
fine since they are inside a TD_SET_RUNNING() loop that expects the value
to be changed by another CPU.

Use relaxed atomic stores/loads to indicate that this variable can be
written/read by multiple CPUs at the same time. This will also prevent
the compiler from doing unexpected re-ordering.

Reported by:	GENERIC-KCSAN
Test Plan:	KCSAN no longer complains, kernel still runs fine.
Reviewed By:	markj, mjg (earlier version)
Differential Revision: https://reviews.freebsd.org/D28569
2021-02-18 14:02:48 +00:00
Alex Richardson
cbcfe28f9d libc/qsort: Don't allow interposing recursive calls
This causes problems when using ASAN with a runtime older than 12.0 since
the intercept does not expect qsort() to call itself using an interposable
function call. This results in infinite recursion and stack exhaustion
when a binary compiled with -fsanitize=address calls qsort.
See also https://bugs.llvm.org/show_bug.cgi?id=46832 and
https://reviews.llvm.org/D84509 (ASAN runtime patch).

To prevent this problem, this patch uses a static helper function
for the actual qsort() implementation. This prevents interposition and
allows for direct calls. As a nice side-effect, we can also move the
qsort_s checks to the top-level function and out of the recursive calls.

Reviewed By:	kib
Differential Revision: https://reviews.freebsd.org/D28133
2021-02-18 14:02:48 +00:00
Robert Wing
4f4065e0a2 libvmm: clean up vmmapi.h
struct checkpoint_op, enum checkpoint_opcodes, and
MAX_SNAPSHOT_VMNAME are not vmm specific, move them out of the vmmapi
header.

They are used for the save/restore functionality that bhyve(8)
provides and are better suited in usr.sbin/bhyve/snapshot.h

Since bhyvectl(8) requires these, the Makefile for bhyvectl has been
modified to include usr.sbin/bhyve/snapshot.h

Reviewed by:    kevans, grehan
Differential Revision:  https://reviews.freebsd.org/D28410
2021-02-17 17:46:42 -09:00
Alex Richardson
a7b42c4b7f msun: ctanh/ctanhf: Import fix from musl libc
This applies musl commit b02eed9c4841913d690a2d0029737d72615384fe by
Szabolcs Nagy and updates the tests accordingly. This also allows
removing an XFAIL from the test.

musl commit message:

complex: fix ctanh(+-0+i*nan) and ctanh(+-0+-i*inf)

These cases were incorrect in C11 as described by
http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1886.htm

PR: 217528

Reviewed By:	dim
MFC after:	1 week
Differential Revision: https://reviews.freebsd.org/D28578
2021-02-15 22:55:12 +00:00
Alan Somers
04e34c0202 libpmc: fix linking with C programs
Revision r334749 Added some C++ code to libpmc.  It didn't change the ABI,
but it did introduce a dependency on libc++.  Nobody noticed because every
program that in the base system that uses libpmc is also C++.

Reported-by:	Dom Dwyer <dom@itsallbroken.com>
Reviewed By:	vangyzen
MFC after:	3 days
Differential Revision: https://reviews.freebsd.org/D28550
2021-02-15 15:54:18 -07:00
Michael Reifenberger
8d06c3e7a4 Improve size readability.
Preserve more space for swap devise names.
Prevent line overflow with long devise name.
Don't draw a bar when swap is not used at all.
Simplify and optimize code.
Change the label to end at end of 100%.
PR:		251655
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D27496
2021-02-15 20:23:32 +01:00
Rick Macklem
a0698341cd getdirentries.2: fix for NFS mounts
It was reported that getdirentries(2) was
returning dirents with d_off set to 0 for an NFS
mount.

This is believed to be correct behaviour at
this time (it may change for some NFS mounts
in the future), but is inconsistent with what the
getdirentries(2) man page says.

This patch fixes the man page.

This is a content change.

PR:	253428
Reviewed by:	asomers
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D28664
2021-02-14 18:16:58 -08:00
Konstantin Belousov
4956af2a8f usleep(3): replace 'process' with 'calling thread'
PR:	253395
Reported by:	zegang.luo@qq.com
MFC after:	3 days
Sponsored by:	The FreeBSD Foundation
2021-02-11 05:52:55 +02:00
Dimitry Andric
d3338f3355 Fix incorrect hypotl(3) result with subnormal numbers
This adjusts the factor used to scale the subnormal numbers, so it
becomes the right value after adjusting its exponent. Thanks to Steve
Kargl for finding the most elegant fix.

Also enable the hypot tests, and add a test case for this bug.

PR:		253313
MFC after:	1 week
2021-02-10 23:28:43 +01:00
Alex Richardson
7676b388ad Always build the sanitizer runtimes when compiling with clang
This allows instrumenting e.g. test binaries even when compiling with an
external clang (e.g. CROSS_TOOLCHAIN=llvm11). I have some upcoming patches
that allow building the entire base system with ASan/UBSan/etc.
instrumentation and this is required in preparation for this.

Reviewed By:	dim, emaste
Differential Revision: https://reviews.freebsd.org/D28532
2021-02-10 15:25:14 +00:00
Michael Tuexen
f25266bee7 libsysdecode: fix decoding of TCP_NOPUSH and TCP_MD5SIG
TCP_FASTOPEN_MIN_COOKIE_LEN was incorrectly registered as a name of
a IPPROTO_TCP level socket option, which overwrote TCP_NOPUSH.
TCP_FASTOPEN_PSK_LEN was incorrectly registered as a name of an
IPPROTO_TCP level socket option, which overwrote TCP_MD5SIG.

MFC after:	3 days
Sponsored by:	Netflix, Inc.
2021-02-09 23:42:27 +01:00
Dimitry Andric
ac76bc1145 Fix lib/msun's ctrig_test/test_inf_inputs test case with clang >= 10
This sprinkles a few strategic volatiles in an attempt to defeat clang's
optimization interfering with the expected floating-point exception
flags.

Reported by:	lwhsu
PR:		244732
MFC after:	3 days
2021-02-09 22:07:05 +01:00
Alexander V. Chernikov
924d1c9a05 Revert "SO_RERROR indicates that receive buffer overflows should be handled as errors."
Wrong version of the change was pushed inadvertenly.

This reverts commit 4a01b854ca.
2021-02-08 22:32:32 +00:00
Alexander V. Chernikov
4a01b854ca SO_RERROR indicates that receive buffer overflows should be handled as errors.
Historically receive buffer overflows have been ignored and programs
could not tell if they missed messages or messages had been truncated
because of overflows. Since programs historically do not expect to get
receive overflow errors, this behavior is not the default.

This is really really important for programs that use route(4) to keep in sync
with the system. If we loose a message then we need to reload the full system
state, otherwise the behaviour from that point is undefined and can lead
to chasing bogus bug reports.
2021-02-08 21:42:20 +00:00
Steve Kargl
93fc678965 Fix incorrect powf(3) result with x near 1 and |y| much larger than 1
This adjusts the check to trigger overflow/underflow to a slightly lower
value.

Before: powf(9.999995e-01, -1.342177e+08) -> inf
After:  powf(9.999995e-01, -1.342177e+08) -> 1.858724e+31

MFC after:	1 week
2021-02-08 20:48:43 +01:00
Mateusz Guzik
3acea07c18 Restore the augmented strlen commentary
... lost in revert
2021-02-08 19:15:21 +00:00
Alex Richardson
c203bd70b5 Import atf 0.22 snapshot ca73d08c3fc1ecffc1f1c97458c31ab82c12bb01
This includes improvements to the atf-sh helper functions that
significantly reduce the number of spawned processes for each test
and therefore speeds up running the testsuite noticeably.
2021-02-04 15:03:05 +00:00
Mateusz Guzik
33f0540b13 Revert "Reimplement strlen"
This reverts commit 710e45c4b8.

It breaks for some corner cases on big endian ppc64.
Given the stage of the release process it is best to revert for now.

Reported by:	jhibbits
2021-02-03 19:38:10 +00:00
Alex Richardson
9b131f1e51 atf: Fix ATF_BUILD_* values when not using the bootstrap compiler
Currently, we encode the full path and compile flags for the build
compiler in libatf. However, these values are not correct when
cross-compiling: For example, when I build on macOS, CC is set to the
host path /usr/local/Cellar/llvm/11.0.0_1/bin/clang-11. This path will
not exist on the target system.
Simplify this logic and use cc/cpp/c++ since those binaries will exist
on the target system unless the compiler was explicitly disabled.
I'm not convinced ATF needs to encode these values, but this is a
minimal fix for these tests when using a non-bootstrapped compiler.

Reviewed By:	ngie, brooks
Differential Revision: https://reviews.freebsd.org/D28414
2021-02-03 09:32:16 +00:00
John Baldwin
0b7f1af804 Bump shared library versions after ncurses bump in 13.
A few shared libraries in the base system link against ncurses.  An
upgrade from a 12.x host to 13 results in ABI breakage for existing
binaries since the newer versions of these libraries link against the
newer ncurses while the binary itself links against the older ncurses.
For example, dialog4ports built on 12.x sometimes crashes on 13 since
it depends on libdialog which links against ncurses internally.

MFC after:	3 days
Reviewed by:	kib, delphij
Differential Revision:	https://reviews.freebsd.org/D28448
2021-02-01 17:11:49 -08:00
Alex Richardson
5cf6f1c4bc Remove the MK_LIBCPLUSPLUS option
This option has been equivalent to any form of C++ support since libstdc++
was removed. Therefore, replace all MK_LIBCPLUSPLUS uses with MK_CXX.

Reviewed By:	emaste
Differential Revision: https://reviews.freebsd.org/D27974
2021-02-01 09:32:07 +00:00
Edward Tomasz Napierala
5299d64b2b libc: fix buffer overrun in getrpcport(3)
Reviewed By:	markj
Sponsored by:	NetApp, Inc.
Sponsored by:	Klara, Inc.
Differential Revision: https://reviews.freebsd.org/D27332
2021-01-31 21:42:02 +00:00
Mateusz Guzik
f1be262ec1 amd64: move memcmp checks upfront
This is a tradeoff which saves jumps for smaller sizes while making
the 8-16 range slower (roughly in line with the other cases).

Tested with glibc test suite.

For example size 3 (most common with vfs namecache) (ops/s):
before:	407086026
after:	461391995

The regressed range of 8-16 (with 8 as example):
before:	540850489
after:	461671032
2021-01-31 16:07:20 +00:00
Mateusz Guzik
0db6aef407 amd64: add a note about simd to libc memset, memmove and memcmp 2021-01-31 16:07:19 +00:00
Mateusz Guzik
46f168bc66 Drop temporary compat in setproctitle 2021-01-31 16:07:19 +00:00
Mateusz Guzik
164c3b8184 amd64: add missing ALIGN_TEXT to loops in memset and memmove 2021-01-30 00:01:44 +00:00
Mateusz Guzik
710e45c4b8 Reimplement strlen
The previous code neglected to use primitives which can find the end
of the string without having to branch on every character.

While here augment the somewhat misleading commentary -- strlen as
implemented here leaves performance on the table, especially so for
userspace. Every arch should get a dedicated variant instead.

In the meantime this commit lessens the problem.

Tested with glibc test suite.

Naive test just calling strlen in a loop on Haswell (ops/s):

$(perl -e "print 'A' x 3"):
before:	211198039
after:	338626619

$(perl -e "print 'A' x 100"):
before:	83151997
after:	98285919
2021-01-29 23:48:26 +00:00
Alex Richardson
892a05ee3a Avoid double output in fenv_test
This tests fork()s, so if there is still data in the stdout buffer on fork
it will print it again in the child process. This was happening in the
CheriBSD CI and caused the test to complain about malformed TAP output.

Reviewed By:	ngie
Differential Revision: https://reviews.freebsd.org/D28397
2021-01-29 09:29:27 +00:00
Alex Richardson
4d2edf3af1 test_inf_inputs: Use atf_tc_expect_fail() instead of atf_tc_skip()
Reviewed By:	lwhsu
Differential Revision: https://reviews.freebsd.org/D28396
2021-01-29 09:28:40 +00:00
Alex Richardson
d4a6843bb1 Update comment missed in 83ff5d5d98
Reported by:	jrtc27
2021-01-29 09:19:27 +00:00
Alex Richardson
83ff5d5d98 Un-XFAIL two tests with Clang > 10
SVN r343917 fixed this for in-tree clang, but when building with a newer
out-of-tree clang the test was still marked as XFAIL.

Reviewed By:	dim
Differential Revision: https://reviews.freebsd.org/D28390
2021-01-28 17:24:24 +00:00
Andrew Turner
4e76e4c301 Remove obsolete code gated on _ARM_ARCH_*
This is all code only run on ARMv4 and ARMv5. Support for these have
been dropped from FreeBSD.

Differential Revision:	https://reviews.freebsd.org/D28314
2021-01-28 10:41:45 +00:00
Andrew Turner
4d2ff2330f Remove the old ARMv4 memcpy
This was only used when building for ARMv4 or some ARMv5 or when
_STANDALONE is defined. As ARMv4 and ARMv5 support has been removed,
and we only define _STANDALONE in the bootloader where we don't use
this version of memcpy we can remove it.

Differential Revision:	https://reviews.freebsd.org/D28313
2021-01-28 10:39:38 +00:00
Andrew Turner
e09c8c9ad9 Remove leftover big-endian arm support
Reviewed by:	imp
Differential Revision:	https://reviews.freebsd.org/D28312
2021-01-28 10:33:40 +00:00
Jessica Clarke
48397f6c7d libllvmminimal: Add missing Support/ABIBreak.cpp
When building natively on RISC-V, linking the bootstrap clang-tblgen
fails with:

  ld: error: undefined symbol: llvm::EnableABIBreakingChecks
  >>> referenced by PrettyStackTrace.cpp
  >>>               PrettyStackTrace.o:(.sdata+0x0) in archive
  /usr/obj/usr/src/freebsd-src/riscv.riscv64/tmp/obj-tools/lib/clang/libllvmminimal/libllvmminimal.a
  >>> referenced by Signals.cpp
  >>>               Signals.o:(.sdata+0x8) in archive
  /usr/obj/usr/src/freebsd-src/riscv.riscv64/tmp/obj-tools/lib/clang/libllvmminimal/libllvmminimal.a
  >>> referenced by Timer.cpp
  >>>               Timer.o:(.sdata+0x28) in archive
  /usr/obj/usr/src/freebsd-src/riscv.riscv64/tmp/obj-tools/lib/clang/libllvmminimal/libllvmminimal.a

This is likely due to Error.h's inclusion of abi-breaking.h. It's
unclear why this only affects RISC-V, but perhaps relates to its more
eager use of .sdata due to the ABI's support for linker relaxations.
Regardless, this is theoretically an issue for all architectures.

Reported by:	Dennis Clarke <dclarke@blastwave.org>
Reviewed by:	dim
Tested by:	mhorne
MFC after:	3 days
Differential Revision:	https://reviews.freebsd.org/D28367
2021-01-27 19:19:00 +00:00
Olivier Cochard
f1c010d9f9 tests: Skip cap_fileargs if build without capsicum capabilities
Approved by:    oshogbo
Sponsored by:   Netflix
Differential Revision: https://reviews.freebsd.org/D2834
2021-01-26 22:19:36 +01:00
Alex Richardson
3454fa118c Don't include libarchive fuzz tests by default
These tests are basic fuzz tests that permute input to trigger crashes
rather than regression or unit tests. Additionally, some of them take a
rather long time to run and should probably be run on a dedicated fuzzing
job instead. Moreover, these simple tests use rand() instead of a real
fuzzing tool that generates interesting inputs (e.g. LLVM libFuzzer) so are
unlikely to find anything interesting when run in CI.

This allows removing one BROKEN_TESTS case due to timeouts and speeds up
running tests on emulated platforms such as QEMU.

Reviewed By:	lwhsu, mm
Differential Revision: https://reviews.freebsd.org/D27153
2021-01-25 15:09:26 +00:00
Mateusz Guzik
b22fdf45ff libc: try to skip memcpy in _gettemp 2021-01-24 11:06:36 +00:00
Mateusz Guzik
6fe328ace8 libc: remove open-coded strlen in _gettemp 2021-01-24 11:06:36 +00:00
Mateusz Guzik
97a463120b libc: skip spurious stat in _gettemp
It was only done to catch ENOTDIR, but the kernel already returns the
error where appropriate.
2021-01-24 11:06:36 +00:00
Kyle Evans
123ae3045d build: remove LIBPTHREAD/LIBTHR build options
WITHOUT_LIBTHR has been broken for a little over five years now, since the
xz 5.2.0 update introduced a hard liblzma dependency on libthr, and building
a useful system without threading support is becoming increasingly more
difficult.

Additionally, in the five plus years that it's been broken more reverse
dependencies have cropped up in libzstd, libsqlite3, and libcrypto (among
others) that make it more and more difficult to reconcile the effort needed
to fix these options.

Remove the broken options.

PR:		252760
Reviewed by:	brooks, emaste, kib
Differential Revision:	https://reviews.freebsd.org/D28263
2021-01-22 12:33:27 -06:00
Glen Barber
f9a66922c9 fix incorrect LLD_VERSION_STRING from previous commit
Reported by:	Oliver Pinter
Sponsored by:	Rubicon Communications, LLC ("Netgate")
2021-01-21 19:49:30 -05:00
Glen Barber
a53ce3fc49 Bump CURRENT to 14.0
This one goes to 14.

Approved by:	re (implicit)
Sponsored by:	Rubicon Communications, LLC ("Netgate")
2021-01-21 19:10:07 -05:00
Mark Johnston
1a05d9519d libcasper/cap_grp tests: Reset the group database handle
Some tests verify that the capgrp capability does not permit calls to
setgrent(3), but all tests need to ensure that they reset the
capability's group database handle, otherwise the local process and
casper process will be out of sync.

The cap_pwd tests already handle this.

Sponsored by:	The FreeBSD Foundation
MFC after:	1 month
2021-01-21 14:30:19 -05:00
Mark Johnston
48a1868634 libc/nss: Ensure that setgroupent(3) actually works as advertised
Because the "files" and "compat" implementations failed to set the
"stayopen", keyed lookups would close the database handle, contrary to
the purpose of setgroupent(3).  setpassent(3)'s implementation does not
have this bug.

PR:		165527
Submitted by:	Andrey Simonenko
MFC after:	1 month
2021-01-21 14:30:19 -05:00