Commit Graph

21382 Commits

Author SHA1 Message Date
Jessica Clarke
87973534d2 strdup.3: Function appeared in 4.3BSD-Reno, not 4.4BSD
Linux claims 4.3BSD, we claim 4.4BSD and OpenBSD claims 4.3BSD-Reno. It turns
out that OpenBSD got it right: the function was added in late 1988 a few months
after 4.3BSD-Tahoe, well in advance of 4.3BSD-Reno.

Reviewed by:	bcr
Approved by:	bcr
Differential Revision:	https://reviews.freebsd.org/D27392
2020-12-14 00:50:45 +00:00
Martin Matuska
87c1ec0a31 MFV r368607:
Sync libarchive with vendor.

Vendor changes:
  Issue #1461: Unbreak build without lzma
  Issue #1462: warc reader: Fix build with gcc11
  Issue #1463: Fix code compatibility in test_archive_read_support.c
  Issue #1464: Use built-in strnlen on platforms where not available
  Issue #1465: warc reader: fix undefined behaviour in deconst() function

MFC after:	3 days
X-MFC-With:	368234
2020-12-13 16:26:37 +00:00
Stefan Eßer
6c2596f00c Change getlocalbase() to not allocate any heap memory
After the commit of the current version, Scott Long pointed out, that an
attacker might be able to cause a use-after-free access if this function
returned the value of the sysctl variable "user.localbase" by freeing
the allocated memory without the cached address being cleared in the
library function.

To resolve this issue, I have proposed the originally suggested version
with a statically allocated buffer in a review (D27370). There was no
feedback on this review and after waiting for more than 2 weeks, the
potential security issue is fixed by this commit. (There was no security
risk in practice, since none of the programs converted to use this
function attempted to free the buffer. The address could only have
pointed into the heap if user.localbase was set to a non-default value,
into r/o data or the environment, else.)

This version uses a static buffer of size LOCALBASE_CTL_LEN, which
defaults to MAXPATHLEN. This does not increase the memory footprint
of the library at this time, since its data segment grows from less
than 7 KB to less than 8 KB, i.e. it will get two 4 KB pages on typical
architectures, anyway.

Compiling with LOCALBASE_CTL_LEN defined as 0 will remove the code
that accesses the sysctl variable, values between 1 and MAXPATHLEN-1
will limit the maximum size of the prefix. When built with such a
value and if too large a value has been configured in user.localbase,
the value defined as ILLEGAL_PREFIX will be returned to cause any
file operations on that result to fail. (Default value is "/dev/null/",
the review contained "/\177", but I assume that "/dev/null" exists and
can not be accessed as a directory. Any other string that can be assumed
not be a valid path prefix could be used.)

I do suggest to use LOCALBASE_CTL_LEN to size the in-kernel buffer for
the user.localbase variable, too. Doing this would guarantee that the
result always fit into the buffer in this library function (unless run
on a kernel built with a different buffer size.)

The function always returns a valid string, and only in case it is built
with a small static buffer and run on a system with too large a value in
user.localbase, the ILLEGAL_PREFIX will be returned, effectively causing
the created path to be non-existent.

Differential Revision:	https://reviews.freebsd.org/D27370
2020-12-12 11:23:52 +00:00
Enji Cooper
d03bd62f31 timespec_get(3): sort SEE ALSO correctly
clock_gettime(2) should be mentioned before gettimeofday(2).

Reported by:	make manlint
MFC after:	1 week
Sponsored by:	DellEMC Isilon
2020-12-11 02:22:42 +00:00
Enji Cooper
0c424c64f8 cpuset{,_getaffinity,_getdomain}.2: fix SEE ALSO
Sort by manpage section, then sort entries alphabetically.

This makes the manpages `make manlint` clean.

MFC after:	1 week
Sponsored by:	DellEMC Isilon
2020-12-11 01:52:27 +00:00
Enji Cooper
92d4164179 aio_suspend.2: properly canonicalize .Dd
Months should be fully spelled as their local-specific equivalents: in this
case `Oct` should have been spelled like `October`.

Reported by:	make manlint
MFC after:	1 week
Sponsored by:	DellEMC Isilon
2020-12-11 00:28:28 +00:00
Enji Cooper
20daf0ca6e cap_enter(2): fix CAVEATS section
The CAVEATS section was misspelled as "CAVEAT" before this change. Fix the
spelling to identify issues related to the section.

Furthermore, given that the section order was incorrect, move the CAVEATS
section down to the bottom of the manpage, per the conventional section
order.

MFC after:	1 week
Reported by:	make manlint
Sponsored by:	DellEMC Isilon
2020-12-11 00:26:49 +00:00
Enji Cooper
2c96ea9ca0 posix_spawn(3): fix section that references vfork
`vfork(2)` should be referenced in paragraphs as `.Fn vfork`, not `vfork()`.
This change switches the reference to use `.Fn`, which in turn makes the
manpage `make manlint` clean.

MFC after:	1 week
Reported by:	make manlint
Sponsored by:	DellEMC Isilon
2020-12-11 00:20:04 +00:00
Enji Cooper
eca1933a55 getentropy(3): sort SEE ALSO sections
Sorting order should be done by manpage section (2 vs 3), then alphabetically.
This change fixes the order to sort by the manpage section, first.

Reported by:	make manlint
MFC after:	1 week
Sponsored by:	DellEMC Isilon
2020-12-11 00:15:57 +00:00
Enji Cooper
c80d36d0e0 arc4random(3): fix .Xr issues
- pthreads(3) should actually be pthread(3).
- getentropy(2) should actually be getentropy(3).

This makes the manpage `make manlint` clean.

MFC after:	1 week
Sponsored by:	DellEMC Isilon
2020-12-11 00:13:39 +00:00
Kenneth D. Merry
78adacd4ea Add the LTO-9 density code to libmt and the mt(1) man page.
These values are taken directly from the density report from an
IBM LTO-9 tape drive.  (Using mt getdensity)

A LTO-9 drive stores 18TB raw (45TB with compression) on an LTO-9 tape.

lib/libmt/mtlib.c:
        Add the LTO-9 density code, and bpmm/bpi values.

usr.bin/mt/mt.1:
        Add the LTO-9 density code, bpmm/bpi values and number of
	tracks.  Bump the man page date.

MFC after:	3 days
Sponsored by:	Spectra Logic
2020-12-10 21:06:06 +00:00
Kyle Evans
3b27074b25 libsysdecode: decode _UMTX_OP flags
Assume that UMTX_OP with a double underbar following is a flag, while any
underbar+alphanumeric combination immeiately following is an op.

This was a part of D27325.

Reviewed by:	kib
2020-12-09 03:22:44 +00:00
Kyle Evans
e04a83a3e1 _umtx_op(2): document recent addition of 32bit compat flags
This was part of D27325.

Reviewed by:	kib
2020-12-09 03:20:51 +00:00
Enji Cooper
00107a56e5 extattr_get_file(20: bump .Dd
This is being done for the formatting and context changes. While the net content
hasn't been changed, the content/context changes were sufficient to warrant the
date bump.

MFC after:	1 week
MFC with:	r368431, r368433, r368434, r368435
Sponsored by:	DellEMC Isilon
2020-12-08 04:18:16 +00:00
Enji Cooper
cf681016d4 extattr_get_file(2): clarify RETURN VALUES
While some of the syscalls' behavior were documented and implied in the
RETURN VALUES section by earlier, e.g., the DESCRIPTION sections, as having
behavior of the other calls (`*_fd` vs `*_file` vs `*_link`), there was a lot
of implied return value behavior in the section prior to this change.

Explicitly document the syscall behavior per the current implementation in
sys/kern/vfs_extattr.c so others can better develop based on its explicit
documented behavior instead of having to digest the context of the manpage to
understand the appropriate behavior.

MFC after:	1 week
MFC with:	r368431, r368433, r368434
Sponsored by:	DellEMC Isilon
2020-12-08 04:16:05 +00:00
Enji Cooper
f705523939 extattr_get_file(2): fix more formatting
- Remove an unnecessary trailing comma separating a two-item clause.
- Sort more function calls alphabetically (in the same vein as r368433).

MFC after:	1 week
Sponsored by:	DellEMC Isilon
2020-12-08 04:05:19 +00:00
Enji Cooper
e8e0f91b8b extattr_get_file(2): sort syscalls alphabetically
Although some sections of the manpage sort the syscalls alphabetically, many
core areas of the manpage do not. Sort the syscalls so it is easier to pick out
functional changes and to improve manpage readability.

This formatting change is also being done to make future functional changes
easier to spot.

MFC after:	1 week
Sponsored by:	DellEMC Isilon
2020-12-08 04:01:03 +00:00
Enji Cooper
403b2124d4 lio_listio(2): fix manlint error
The date with .Dd prior to this change isn't canonically spelled out: it
should have been "December", not "Dec".

MFC after:	1 week
Sponsored by:	DellEMC Isilon
2020-12-08 03:48:05 +00:00
Enji Cooper
9d610b1516 extattr_get_fd(2): fix manlint errors
- The CAVEATS section was misspelled as "CAVEAT".
- The CAVEATS section should come before the "BUGS" section and after
  other existing sections by convention.

MFC after:	1 week
Reported by:	make manlint
Sponsored by:	DellEMC Isilon
2020-12-08 03:43:00 +00:00
Kyle Evans
4afa7dd61a libc: regex: retire internal EMPTBR ("Empty branch present")
It was realized just a little too late that this was a hack that belonged in
individual regex(3)-using applications. It was surrounded in NOTYET and not
implemented in the engine, so remove it.
2020-12-05 03:18:48 +00:00
Kyle Evans
6b986646d4 libregex: implement \b and \B (word boundary, not word boundary)
This is the last of the needed GNU expressions before we can unleash bsdgrep
by default. \b is effectively an agnostic equivalent of \< and \>, while
\B will match every space that isn't making a transition from
nonchar -> char or char -> nonchar.
2020-12-05 03:16:05 +00:00
Kyle Evans
ca53e5aedf libregex: implement \` and \' (begin-of-subj, end-of-subj)
These are GNU extensions, generally equivalent to ^ and $ except that the
new syntax will not match beginning of line after the first in a multi-line
expression or the end of line before absolute last in a multi-line
expression.
2020-12-05 03:13:47 +00:00
Kyle Evans
7518fb346f libc: regex: factor out ISBOW/ISEOW macros
These will be reused for \b (word boundary, which matches both sides).

No functional change.
2020-12-05 02:23:11 +00:00
Conrad Meyer
78599c32ef Add CFI start/end proc directives to arm64, i386, and ppc
Follow-up to r353959 and r368070: do the same for other architectures.

arm32 already seems to use its own .fnstart/.fnend directives, which
appear to be ARM-specific variants of the same thing.  Likewise, MIPS
uses .frame directives.

Reviewed by:	arichardson
Differential Revision:	https://reviews.freebsd.org/D27387
2020-12-05 00:33:28 +00:00
Mark Johnston
b957b18594 Always use 64-bit physical addresses for dump_avail[] in minidumps
As of r365978, minidumps include a copy of dump_avail[].  This is an
array of vm_paddr_t ranges.  libkvm walks the array assuming that
sizeof(vm_paddr_t) is equal to the platform "word size", but that's not
correct on some platforms.  For instance, i386 uses a 64-bit vm_paddr_t.

Fix the problem by always dumping 64-bit addresses.  On platforms where
vm_paddr_t is 32 bits wide, namely arm and mips (sometimes), translate
dump_avail[] to an array of uint64_t ranges.  With this change, libkvm
no longer needs to maintain a notion of the target word size, so get rid
of it.

This is a no-op on platforms where sizeof(vm_paddr_t) == 8.

Reviewed by:	alc, kib
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D27082
2020-12-03 17:12:31 +00:00
Cy Schubert
feb01b72ef Remove trailing whitespace.
MFC after:	1 week
2020-12-03 05:49:59 +00:00
Martin Matuska
c3afd20f13 MFV r368207:
Update libarchive to 3.5.0

Relevant vendor changes:
  Issue #1258: add archive_read_support_filter_by_code()
  PR #1347: mtree digest reader support
  Issue #1381: skip hardlinks pointing to itself on extraction
  PR #1387: fix writing of cpio archives with hardlinks without file type
  PR #1388: fix rdev field in cpio format for device nodes
  PR #1389: completed support for UTF-8 encoding conversion
  PR #1405: more formats in archive_read_support_format_by_code()
  PR #1408: fix uninitialized size in rar5_read_data
  PR #1409: system extended attribute support
  PR #1435: support for decompression of symbolic links in zipx archives
  Issue #1456: memory leak after unsuccessful archive_write_open_filename

MFC after:	1 week
2020-12-01 15:53:12 +00:00
Konstantin Belousov
ec5fed758c Ensure that threading library is initialized in pthread_mutex_init().
We need at least thr_malloc ready.  The situation is possible e.g. in case
of libthr being listed in DT_NEEDED before some of its consumers.

Reported and tested by:	lev
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2020-11-30 17:00:36 +00:00
Konstantin Belousov
412ef5da8a libc: Add pthread_attr_get_np(3) stub, reporting ESRCH.
This seems to be required by recent clang asan.
I do not see other way than put the symbol under FBSD_1.0 version.

PR:	251112
Reported by:	Andrew Stitcher <astitcher@apache.org>
Reviewed by:	emaste
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D27389
2020-11-28 12:19:20 +00:00
Mateusz Piotrowski
16e1abe4e0 libprocstat.3: Correct two occurrences of kvm_getprocs to procstat_getprocs
Submitted by:	otis_sk.freebsd.org
Reviewed by:	markj
MFC after:	3 days
Differential Revision:	https://reviews.freebsd.org/D26151
2020-11-26 22:49:05 +00:00
Konstantin Belousov
1a1b8b1cb3 Remove stray column.
Sponsored by:	The FreeBSD Foundation
MFC after: 3 days
2020-11-26 20:27:23 +00:00
Konstantin Belousov
20b8e1a25c Style.
Sponsored by:	The FreeBSD Foundation
MFC after: 3 days
2020-11-26 20:23:17 +00:00
Pawel Biernacki
569da02b0c libsysdecode: account for invalid protection flags
Reported by:	jhb
MFC with:	r368022
2020-11-26 09:07:45 +00:00
Konstantin Belousov
f2148ee019 Use designated initializers for libc pthread stubs' jump table.
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2020-11-25 17:04:26 +00:00
Pawel Biernacki
4cbec44397 libsysdecode: correctly decode mmap flags
r352913 added decoding of mmap PROT_MAX()'d flags but didn’t account for the
case where different values were specified for PROT_MAX and regular flags.
Fix it.

Submitted by:	sigsys_gmail.com
Reported by:	sigsys_gmail.com
MFC after:	7 days
Differential Revision:	https://reviews.freebsd.org/D27312
2020-11-25 16:30:57 +00:00
John Baldwin
688f8b822c Remove the cloned file descriptors for /dev/crypto.
Crypto file descriptors were added in the original OCF import as a way
to provide per-open data (specifically the list of symmetric
sessions).  However, this gives a bit of a confusing API where one has
to open /dev/crypto and then invoke an ioctl to obtain a second file
descriptor.  This also does not match the API used with /dev/crypto on
other BSDs or with Linux's /dev/crypto driver.

Character devices have gained support for per-open data via cdevpriv
since OCF was imported, so use cdevpriv to simplify the userland API
by permitting ioctls directly on /dev/crypto descriptors.

To provide backwards compatibility, CRIOGET now opens another
/dev/crypto descriptor via kern_openat() rather than dup'ing the
existing file descriptor.  This preserves prior semantics in case
CRIOGET is invoked multiple times on a single file descriptor.

Reviewed by:	markj
Relnotes:	yes
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D27302
2020-11-25 00:10:54 +00:00
John Baldwin
1925586e03 Honor the disabled setting for MSI-X interrupts for passthrough devices.
Add a new ioctl to disable all MSI-X interrupts for a PCI passthrough
device and invoke it if a write to the MSI-X capability registers
disables MSI-X.  This avoids leaving MSI-X interrupts enabled on the
host if a guest device driver has disabled them (e.g. as part of
detaching a guest device driver).

This was found by Chelsio QA when testing that a Linux guest could
switch from MSI-X to MSI interrupts when using the cxgb4vf driver.

While here, explicitly fail requests to enable MSI on a passthrough
device if MSI-X is enabled and vice versa.

Reported by:	Sony Arpita Das @ Chelsio
Reviewed by:	grehan, markj
MFC after:	2 weeks
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D27212
2020-11-24 23:18:52 +00:00
Jung-uk Kim
fe85238ef7 Remove support for SSLv3 from fetch(3).
Support for SSLv3 was already removed from OpenSSL (r361392).

Differential Revision:	https://reviews.freebsd.org/D24947
2020-11-24 22:10:33 +00:00
Ed Maste
33482dae89 libc: fix undefined behavior from signed overflow in strstr and memmem
unsigned char promotes to int, which can overflow when shifted left by
24 bits or more. this has been reported multiple times but then
forgotten. it's expected to be benign UB, but can trap when built with
explicit overflow catching (ubsan or similar). fix it now.

note that promotion to uint32_t is safe and portable even outside of
the assumptions usually made in musl, since either uint32_t has rank
at least unsigned int, so that no further default promotions happen,
or int is wide enough that the shift can't overflow. this is a
desirable property to have in case someone wants to reuse the code
elsewhere.

musl commit: 593caa456309714402ca4cb77c3770f4c24da9da

Obtained from:	musl
2020-11-19 00:03:15 +00:00
Ed Maste
7dbcd06e63 libc: optimize memmem two-way bad character shift
first, the condition (mem && k < p) is redundant, because mem being
nonzero implies the needle is periodic with period exactly p, in which
case any byte that appears in the needle must appear in the last p
bytes of the needle, bounding the shift (k) by p.

second, the whole point of replacing the shift k by mem (=l-p) is to
prevent shifting by less than mem when discarding the memory on shift,
in which case linear time could not be guaranteed. but as written, the
check also replaced shifts greater than mem by mem, reducing the
benefit of the shift. there is no possible benefit to this reduction of
the shift; since mem is being cleared, the full shift is valid and
more optimal. so only replace the shift by mem when it would be less
than mem.

musl commits:
8f5a820d147da36bcdbddd201b35d293699dacd8
122d67f846cb0be2c9e1c3880db9eb9545bbe38c

Obtained from:	musl
MFC after:	2 weeks
2020-11-19 00:02:12 +00:00
Ed Maste
4874ddfd37 clang-format libc string functions imported from musl
We have adopted these and don't consider them 'contrib' code, so bring
them closer to style(9).  This is a followon to r315467 and r351700.

MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2020-11-18 22:01:34 +00:00
Stefan Eßer
30d21d2795 Add function getlocalbase() to libutil.
This function returns the path to the local software base directory, by
default "/usr/local" (or the value of _PATH_LOCALBASE in include/paths.h
when building the world).

The value returned can be overridden by 2 methods:

- the LOCALBASE environment variable (ignored by SUID programs)
- else a non-default user.localbase sysctl value

Reviewed by:	hps (earlier version)
Relnotes:	yes
Differential Revision:	https://reviews.freebsd.org/D27236
2020-11-18 19:44:30 +00:00
Alfredo Dal'Ava Junior
758f9acf8c msun tests: use standard floating-point exception flags on lrint and fenv tests
Some platforms have additional architecture-specific floating-point flags.
Msun test cases lrint and test_fegsetenv (fenv) expects only standard flags,
so make sure to mask them appropriately.

This makes test pass on PowerPC64.

Reviewed by:	jhibbits, ngie
Sponsored by:	Eldorado Research Institute (eldorado.org.br)
Differential Revision:	https://reviews.freebsd.org/D27202
2020-11-18 19:23:30 +00:00
Conrad Meyer
85078b8573 Split out cwd/root/jail, cmask state from filedesc table
No functional change intended.

Tracking these structures separately for each proc enables future work to
correctly emulate clone(2) in linux(4).

__FreeBSD_version is bumped (to 1300130) for consumption by, e.g., lsof.

Reviewed by:	kib
Discussed with:	markj, mjg
Differential Revision:	https://reviews.freebsd.org/D27037
2020-11-17 21:14:13 +00:00
Alfredo Dal'Ava Junior
e7bd4f846f [POWERPC] msun: fix incorrect flag in fesetexceptflag
Fix incorrect mask being used when FE_INVALID bit is wanted by user.
The problem was noticed thanks to msun fenv tests.

Reviewed by:	jhibbits, luporl
Sponsored by:	Eldorado Research Institute (eldorado.org.br)
Differential Revision:	https://reviews.freebsd.org/D27201
2020-11-17 12:36:59 +00:00
Kyle Evans
4be0a1b587 _umtx_op: fix a compat32 bug in UMTX_OP_NWAKE_PRIVATE
Specifically, if we're waking up some value n > BATCH_SIZE, then the
copyin(9) is wrong on the second iteration due to upp being the wrong type.
upp is currently a uint32_t**, so upp + pos advances it by twice as many
elements as it should (host pointer size vs. compat32 pointer size).

Fix it by just making upp a uint32_t*; it's still technically a double
pointer, but the distinction doesn't matter all that much here since we're
just doing arithmetic on it.

Add a test case that demonstrates the problem, placed with the libthr tests
since one messing with _umtx_op should be running these tests. Running under
compat32, the new test case will hang as threads after the first 128 get
missed in the wake. it's not immediately clear how to hit it in practice,
since pthread_cond_broadcast() uses a smaller (sleepq batch?) size observed
to be around ~50 -- I did not spend much time digging into it.

The uintptr_t change makes no functional difference, but i've tossed it in
since it's more accurate (semantically).

Reported by:	Andrew Gierth (andrew_tao173.riddles.org.uk, inspection)
Reviewed by:	kib
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D27231
2020-11-17 03:34:01 +00:00
Kyle Evans
231f59920a _umtx_op: document UMTX_OP_SEM2_WAIT copyout behavior
This clever technique to get a time remaining back was added to support sem_clockwait_np.

Reviewed by:	kib, vangyzen
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D27160
2020-11-17 03:26:56 +00:00
Scott Long
8e1031086d Revert the whole getlocalbase() set of changes while a different design is
hashed out.
2020-11-15 20:24:59 +00:00
Scott Long
85a5fe290b Because getlocalbase() returns -1 on error, it needs to use a signed type
internally.  Do that, and make sure that conversations between signed and
unsigned don't overflow
2020-11-15 07:48:52 +00:00
Scott Long
bcf9ae2751 Fix a problem with r367686 related to the use of ssize_t. Not sure how this
escaped prior testing, but it should be better now.

Reported by:	lots
2020-11-14 19:04:36 +00:00
Scott Long
98b76d2227 Add the library function getlocalbase and its manual page. This helps to
unify the retrieval of the various ways that the local software base directory,
typically "/usr/local", is expressed in the system.

Reviewed by:	se
Differential Revision:	https://reviews.freebsd.org/D27022
2020-11-14 17:57:50 +00:00
Brooks Davis
827bd9d1c5 Add missing src.opts.mk include
This was missed in r364221 so tests were not built.

Reviewed by:	bdrewery
Obtained from:	CheriBSD
Sponsored by:	DARPA
Differential Revision:	https://reviews.freebsd.org/D27210
2020-11-13 23:18:04 +00:00
Mateusz Piotrowski
ec26a84475 Add a missing Nm macro
All functions documented in a manual page should be enumerated
with the Nm macros.
2020-11-13 14:56:34 +00:00
Mateusz Piotrowski
13d8393f6c Reference setprogname(3) in setproctitle(3)
The reference to setproctitle(3) in the setprogname(3) manual is already
in place.

MFC after:	3 days
2020-11-13 13:47:18 +00:00
Emmanuel Vadot
6cd88fe0e0 pkgbase: Move libprivatezstd from utilities to runtime
libarchive depends on it by default and tar uses libarchive.
So on a update :
1/ runtime contain tar
2/ runtime have libarchive in shlibs_required
3/ libarchive packages depends on utilities
4/ utilities depends on runtime
5/ kaboom

All users of libprivatezstd (libarchive related stuff and objcopy/ar)
are already in utilities.

Discussed with: bapt
2020-11-12 14:04:08 +00:00
John Baldwin
9ebe945bd7 Add C startup code tests for PIE binaries.
- Force dynamic to be a non-PIE binary.

- Add a dynamicpie test which uses a PIE binary.

Reviewed by:	andrew
Obtained from:	CheriBSD
MFC after:	2 weeks
Sponsored by:	DARPA
Differential Revision:	https://reviews.freebsd.org/D27127
2020-11-10 19:09:35 +00:00
John Baldwin
f9fd7337f6 Fix dso_handle_check for PIE executables.
PIE executables use crtbeginS.o and have a non-NULL dso_handle as a
result.

Reviewed by:	andrew, emaste
MFC after:	2 weeks
Sponsored by:	DARPA
Differential Revision:	https://reviews.freebsd.org/D27126
2020-11-10 19:07:30 +00:00
John Baldwin
ecad1d050c Rename __JCR_LIST__ to __JCR_END__ in crtend.c.
This is more consistent with the names used for .ctor and .dtor
symbols and better reflects __JCR_END__'s role.

Reviewed by:	andrew
Obtained from:	CheriBSD
MFC after:	2 weeks
Sponsored by:	DARPA
Differential Revision:	https://reviews.freebsd.org/D27125
2020-11-10 19:04:54 +00:00
Thomas Munro
cc7edd258c Add collation version support to querylocale(3).
Provide a way to ask for an opaque version string for a locale_t, so
that potential changes in sort order can be detected.  Similar to
ICU's ucol_getVersion() and Windows' GetNLSVersionEx(), this API is
intended to allow databases to detect when text order-based indexes
might need to be rebuilt.

The CLDR version is extracted from CLDR source data by the Makefile
under tools/tools/locale, written into the machine-generated Makefile
under shared/colldef, passed to localedef -V, and then written into
LC_COLLATE file headers.  The initial version is 34.0.
tools/tools/locale was recently updated to pull down 35.0, but the
output hasn't been committed under share/colldef yet, so that will
provide the first observable change when it happens.  Other versioning
schemes are possible in future, because the format is unspecified.

Reviewed by:	bapt, 0mp, kib, yuripv (albeit a long time ago)
Differential Revision:	https://reviews.freebsd.org/D17166
2020-11-08 02:50:34 +00:00
Mateusz Guzik
bdcc222644 malloc: move malloc_type_internal into malloc_type
According to code comments the original motivation was to allow for
malloc_type_internal changes without ABI breakage. This can be trivially
accomplished by providing spare fields and versioning the struct, as
implemented in the patch below.

The upshots are one less memory indirection on each alloc and disappearance
of mt_zone.

Reviewed by:	markj
Differential Revision:	https://reviews.freebsd.org/D27104
2020-11-06 21:33:59 +00:00
Leandro Lupori
926da0492a pmcstat: fix PPC kernel symbol resolution
PowerPC kernel is of DYN type and it has a base address where it is
initially loaded, before being relocated. As the start address passed to
pmcstat_image_link() is where the kernel was relocated to, but the symbols
always use the original base address, we need to subtract it to get the
correct offset.

Reviewed by:	jhibbits
Sponsored by:	Eldorado Research Institute (eldorado.org.br)
Differential Revision:	https://reviews.freebsd.org/D26114
2020-11-05 16:47:23 +00:00
Leandro Lupori
5cebdfc072 libpmc: add support for POWER8/9 PMCs
This change adds support for POWER8/9 performance counters.

Reviewed by:	jhibbits
Sponsored by:	Eldorado Research Institute (eldorado.org.br)
Differential Revision:	https://reviews.freebsd.org/D26113
2020-11-05 16:41:28 +00:00
Edward Tomasz Napierala
7abf30d339 Make linux_errtbl[] static.
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D27004
2020-11-03 19:12:33 +00:00
Stefan Eßer
23b4092837 Re-arrange some of the code to separate writable user tree variables from
R/O variables.

While here fix some nearby style. No functional change intended.

MFC after:	1 month
2020-11-02 18:48:06 +00:00
Mateusz Guzik
828afdda17 malloc: export kernel zones instead of relying on them being power-of-2
Reviewed by:	markj (previous version)
Differential Revision:	https://reviews.freebsd.org/D27026
2020-11-02 17:38:08 +00:00
Adrian Chadd
26c29e743b [libnetmap] Fix 32 bit compilation under gcc-6.4
Use uintptr_t to cast a uint64_t to a pointer type.
Yeah, it isn't technically correct for platforms with pointers
> 64 bits, but it's fine here.

This fixes 32 bit compat library builds on amd64 and also
mips32 builds.

Reviewed by:	imp
Differential Revision:	https://reviews.freebsd.org/D26790
2020-11-02 15:01:37 +00:00
Stefan Eßer
1ebef47735 Make sysctl user.local a tunable that can be written at run-time
This sysctl value had been provided as a read-only variable that is
compiled into the C library based on the value of _PATH_LOCALBASE in
paths.h.

After this change, the value is compiled into the kernel as an empty
string, which is translated to _PATH_LOCALBASE by the C library.

This empty string can be overridden at boot time or by a privileged
user at run time and will then be returned by sysctl.

When set to an empty string, the value returned by sysctl reverts to
_PATH_LOCALBASE.

This update does not change the behavior on any system that does
not modify the default value of user.localbase.

I consider this change as experimental and would prefer if the run-time
write permission was reconsidered and the sysctl variable defined with
CLFLAG_RDTUN instead to restrict it to be set at boot time.

MFC after:	1 month
2020-10-31 23:48:41 +00:00
Stefan Eßer
3b9795a2e8 Fix reversed condition after attempted style fix in r367196
Reported by:	xtouqh@hotmail.com
MFC after:	3 days
2020-10-31 12:10:43 +00:00
Stefan Eßer
d86926912c Fix style, no functional change
Submitted by:	kib
MFC after:	3 days
2020-10-31 11:44:10 +00:00
Stefan Eßer
77b793c465 Update man-pages to describe the user.localbase variable added in r367179.
MFC after:	3 days
2020-10-30 19:37:53 +00:00
Stefan Eßer
147eea393f Add read only sysctl variable user.localbase
The value is provided by the C library as for other sysctl variables in
the user tree. It is compiled in and returns the value of _PATH_LOCALBASE
defined in paths.h.

Reviewed by:	imp, scottl
Differential Revision:	https://reviews.freebsd.org/D27009
2020-10-30 18:48:09 +00:00
Edward Tomasz Napierala
1a8577fa68 Add defines for Linux errno values and use them to make linux_errtbl[]
more readable.  While here, add linux_check_errtbl() function to make
sure we don't leave holes.

No objections:	emaste (earlier version)
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D26972
2020-10-29 14:23:52 +00:00
Brooks Davis
b0bffa3a4c Disable ssp raw test without ASAN
r366981 disabled ASAN when it might not be reliable (with an external
compiler), but this test is broken without ASAN so disable it completely
in that case.

PR:		250706
Reviewed by:	emaste, lwhsu
Differential Revision:	https://reviews.freebsd.org/D26982
2020-10-28 23:10:54 +00:00
Edward Tomasz Napierala
bce7ee9d41 Drop "All rights reserved" from all my stuff. This includes
Foundation copyrights, approved by emaste@.  It does not include
files which carry other people's copyrights; if you're one
of those people, feel free to make similar change.

Reviewed by:	emaste, imp, gbe (manpages)
Differential Revision:	https://reviews.freebsd.org/D26980
2020-10-28 13:46:11 +00:00
Alex Richardson
433f33d285 Significantly reduce compile time for googletest internal tests
Clang's optimizer spends a really long time on these tests at -O2, so we now
use -O0 instead. This reduces the -j32 time for lib/googletest/test from 131s
to 29s. Using -O0 also reduces the disk usage from 144MB (at -O2) / 92MB (at
-O1) to 82MB.

Reviewed By:	ngie, dim
Differential Revision: https://reviews.freebsd.org/D26751
2020-10-28 11:54:04 +00:00
Alan Cox
76c7af51ab Revise the description of MAP_STACK. In particular, describe the guard
in more detail.

Reviewed by:	bcr, kib, markj
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D26908
2020-10-27 18:08:33 +00:00
Stefan Eßer
1f474190fc Replace literal uses of /usr/local in C sources with _PATH_LOCALBASE
Literal references to /usr/local exist in a large number of files in
the FreeBSD base system. Many are in contributed software, in configuration
files, or in the documentation, but 19 uses have been identified in C
source files or headers outside the contrib and sys/contrib directories.

This commit makes it possible to set _PATH_LOCALBASE in paths.h to use
a different prefix for locally installed software.

In order to avoid changes to openssh source files, LOCALBASE is passed to
the build via Makefiles under src/secure. While _PATH_LOCALBASE could have
been used here, there is precedent in the construction of the path used to
a xauth program which depends on the LOCALBASE value passed on the compiler
command line to select a non-default directory.

This could be changed in a later commit to make the openssh build
consistently use _PATH_LOCALBASE. It is considered out-of-scope for this
commit.

Reviewed by:	imp
MFC after:	1 month
Differential Revision:	https://reviews.freebsd.org/D26942
2020-10-27 11:29:11 +00:00
John-Mark Gurney
0fda26dbb3 update write(2)'s iovec limit w/ info about the iosize_max_clamp sysctl... 2020-10-26 00:37:31 +00:00
Warner Losh
e369c79ca0 Remove intel compiler support from math.h
The intel compiler support has badly decayed over the years. Stop
pretending that we support it. Note, I've stopped short of requiring
gcc builtin support with this commit since other compilers may be used
to build non-base software and we need to support those so more
investigation is needed before simplifying further.
2020-10-24 23:21:22 +00:00
Ryan Moeller
73577bf01d flua: Add a libjail module
libjail is pretty small, so it makes for a good proof of concept demonstrating
how a system library can be wrapped to create a loadable Lua module for flua.

* Introduce 3lua section for man pages
* Add libjail module

Reviewed by:	kevans, manpages
Relnotes:	yes
Differential Revision:	https://reviews.freebsd.org/D26080
2020-10-24 17:08:59 +00:00
Warner Losh
b38d86a585 warnx: fix needless static
I noticed after the review that these shouldn't be static. Remove the
'static' from them, otherwise concurrent calls to warn* might see a
similar but to the original.
2020-10-24 00:03:11 +00:00
Warner Losh
4e0771b2da warnx: Save errno across calls that might change it.
When warn() family of functions is being used after err_set_file() has
been set to, for example, /dev/null, errno is being clobbered,
rendering it unreliable after, for example, procstat_getpathname()
when it is supposed to emit a warning. Then the errno is changed to
Inappropriate ioctl for device, destroying the original value (via
calls to fprintf()functions).

Submitted by: Juraj Lutter
Differential Revision: https://reviews.freebsd.org/D26871
2020-10-23 23:56:00 +00:00
Brooks Davis
3e7449a37b Only use ASAN when using the in-tree compiler
When building FreeBSD 11 on a FreeBSD 12 system with
CROSS_TOOLCHAIN=llvm10 we end up trying to link against the packaged
version of the sanitizer library.  This resulted in a requirement for
getentropy(3) which is not present in FreeBSD 11.

Reviewed by:	emaste
MFC after:	3 days
Differential Revision:	https://reviews.freebsd.org/D26903
2020-10-23 22:27:45 +00:00
Ed Maste
573456a931 libelf: add compression header support
GNU and Oracle libelf implementations added support for section
compression, intended to reduce the size of DWARF debug info (which
might be an order of magnitude larger than the code).

There are two compressed ELF section formats:

1. Old GNU - sections are renmaed to start with 'z'.  Section contains
   a magic number, uncompressed size, and compressed data.

2. Oracle and New GNU - compressed sections use the SHF_COMPRESSED flag.
   The compression header contains the compression type, uncompressed
   size, and uncompressed alignment.

The second style is preferred and this change implements only that one.

Submitted by:	Tiger Gao <tig@FreeBSDFoundation.org>
Reviewed by:	markj
MFC after:	2 weeks
Relnotes:	Yes
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D24566
2020-10-23 16:35:23 +00:00
Konstantin Belousov
69c09181d4 mmap(2): Document guard size for MAP_STACK and related EINVAL.
Based on submission by:	emaste
Reviewed by:	emaste, markj
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D26894
2020-10-21 21:40:33 +00:00
Ryan Moeller
0710ec8cef Move list_cloners to libifconfig
Move list_cloners() from ifconfig(8) to libifconfig(3) where it can be
reused by other consumers.

Reviewed by:	kp
Differential Revision:	https://reviews.freebsd.org/D26858
2020-10-21 05:27:25 +00:00
Xin LI
5011fb430a Further refinements of ptsname_r(3) interface:
- Hide ptsname_r under __BSD_VISIBLE for now as the specification
   is not finalized at this time.
 - Keep Symbol.map sorted.
 - Avoid the interposing of ptsname_r(3) from an user application
   from breaking ptsname(3) by making the implementation a static
   method and call the static function from ptsname(3) instead.

Reported by:	kib
Reviewed by:	kib, jilles
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D26845
2020-10-20 01:29:45 +00:00
Alex Richardson
4fa4bd6312 Enable SUBDIR_PARALLEL for lib/googletest
This saves a few seconds in a parallel build since we can build the
gtest_main and gmock subdirectories in parallel.

Reviewed By:	ngie
Differential Revision: https://reviews.freebsd.org/D26760
2020-10-19 19:51:03 +00:00
Alex Richardson
2ed3236082 Major improvement to build parallelism for googletest internal tests
Currently the googletest internal tests build after the matching library.
However, each of these is serialized at the top level makefile.
Additionally some of the tests (e.g. the gmock-matches-test) take up to
90 seconds to build with clang -O2. Having to wait for this test to
complete before continuing to the next directory seriously slows down the
parllelism of a -j32 build.
Before this change running `make -C lib/googletest -j32 -s` in buildenv
took 202 seconds, now it's 153 due to improved parallelism.

Reviewed By:	emaste (no objection)
Differential Revision: https://reviews.freebsd.org/D26748
2020-10-19 19:50:57 +00:00
Kyle Evans
07335072e2 libbe(3): install MLINKS for all of the functions provided
MFC after:	1 week
2020-10-18 23:58:40 +00:00
Kyle Evans
513bd2fc81 libbe(3): document be_snapshot()
While toying around with lua bindings for libbe(3), I discovered that I
apparently never documented this, despite having documented
be_is_auto_snapshot_name that references it.

MFC after:	1 week
2020-10-18 23:42:00 +00:00
Kyle Evans
5773e924e7 libbe(3): const'ify a couple arguments
libbe will never need to mutate these as we either process them into a local
buffer or we just don't touch them and write to a separate out argument.

MFC after:	1 week
2020-10-18 23:32:47 +00:00
Xin LI
3e7224dffe Implement ptsname_r.
MFC after:	2 weeks
PR:		250062
Reviewed by:	jilles, 0mp, Ray <i maskray me>
Differential Revision:	https://reviews.freebsd.org/D26647
2020-10-17 04:14:38 +00:00
Kyle Evans
6d55b98d52 libc: typo fix (s/involes/involves)
Reported by:	Masahiko Sawada via twitter
MFC after:	3 days
2020-10-16 17:51:09 +00:00
Mateusz Piotrowski
6709a5167f Fix formatting of SYNOPSIS
There was an unnecessary newline being added before Nm.

MFC after:	3 days
2020-10-15 14:17:45 +00:00
Adrian Chadd
388197f414 [libcasper] Update cap_dns API to not trigger unused variable warnings when disabled
When compiling without casper these API calls result in unused variable warnings.
Using #defines was lovely in the past but unfortunately it triggers warnings
which can cascade into errors.

Instead, just inline with some fallthrough functions and keep things happy.

Tested:

* gcc-6 targeting mips32, with casper disabled

Reviewed by:	emaste
Differential Revision:	https://reviews.freebsd.org/D26762
2020-10-13 22:49:43 +00:00
Brooks Davis
155e586513 libgssapi: modernize static string array use
Use designated initializers to document positions in the arrays rather
than requiring counting. Use nitems() rather than rolling it by hand to
count elements.

Also, passify a Clang 12 warning about suspcious string concatenation
within an array initializer by adding parentheses.

Reviewed by:	emaste
MFC after:	1 week
Sponsored by:	DARPA
Differential Revision:	https://reviews.freebsd.org/D26592
2020-10-13 17:14:30 +00:00
Dimitry Andric
f91b0c1c18 Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
release/11.x llvmorg-11.0.0-0-g176249bd673 (aka 11.0.0 release).

MFC after:	4 weeks
X-MFC-With:	r364284
2020-10-12 21:35:29 +00:00
Alex Richardson
cf084e9e92 Enable SUBDIR_PARELLEL in lib/libclang_rt
I noticed that this part of the build was taking much longer than
expected. Turns out it's due to not running the subdirs in parallel.
Reduces `make all` inside lib/libclang_rt time from 63s to 20s with -j32.

Reviewed By:	dim
Differential Revision: https://reviews.freebsd.org/D26623
2020-10-12 10:42:33 +00:00
Alex Richardson
c2ca066705 Fix building on Linux/macOS after r366622
We have to bootstrap arc4random.c, so guard the FenestrasX code to avoid
using it on Linux/macOS.

Reviewed By:	cem
Differential Revision: https://reviews.freebsd.org/D26738
2020-10-12 10:42:14 +00:00
Conrad Meyer
f8e8a06d23 random(4) FenestrasX: Push root seed version to arc4random(3)
Push the root seed version to userspace through the VDSO page, if
the RANDOM_FENESTRASX algorithm is enabled.  Otherwise, there is no
functional change.  The mechanism can be disabled with
debug.fxrng_vdso_enable=0.

arc4random(3) obtains a pointer to the root seed version published by
the kernel in the shared page at allocation time.  Like arc4random(9),
it maintains its own per-process copy of the seed version corresponding
to the root seed version at the time it last rekeyed.  On read requests,
the process seed version is compared with the version published in the
shared page; if they do not match, arc4random(3) reseeds from the
kernel before providing generated output.

This change does not implement the FenestrasX concept of PCPU userspace
generators seeded from a per-process base generator.  That change is
left for future discussion/work.

Reviewed by:	kib (previous version)
Approved by:	csprng (me -- only touching FXRNG here)
Differential Revision:	https://reviews.freebsd.org/D22839
2020-10-10 21:52:00 +00:00
Gordon Bergling
3d265fce43 Fix a few mandoc issues
- skipping paragraph macro: Pp after Sh
- sections out of conventional order: Sh EXAMPLES
- whitespace at end of input line
- normalizing date format
2020-10-09 19:12:44 +00:00
Bjoern A. Zeeb
1e375f3aa7 80211: non-functional changes
Sort a few VHT160 and 80+80 lines, update some comments, and remove
a superfluous ','.

No functional changes intended.

MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2020-10-07 21:56:58 +00:00
Mateusz Guzik
f165a1df9a libkvm: catch up with pre-subtracated per-cpu addresses
Only concerns amd64.

Reported by:	imp
2020-10-06 02:57:37 +00:00
Jakub Wojciech Klama
100353cfbf Add virtio-9p (aka VirtFS) filesystem sharing to bhyve.
VirtFS allows sharing an arbitrary directory tree between bhyve virtual
machine and the host. Current implementation has a fairly complete support
for 9P2000.L protocol, except for the extended attribute support. It has
been verified to work with the qemu-kvm hypervisor.

Reviewed by:	rgrimes, emaste, jhb, trasz
Approved by:	trasz (mentor)
MFC after:	1 month
Relnotes:	yes
Sponsored by:	Conclusive Engineering (development), vStack.com (funding)
Differential Revision:	https://reviews.freebsd.org/D10335
2020-10-03 19:05:13 +00:00
Mark Johnston
afd95785c0 newlocale(3): Fix a memory leak.
newlocale() optionally takes a "base" locale, from which components not
specified in the mask are inherited.  POSIX says that newlocale() may
modify "base" and return it, or free "base" and return a newly allocated
locale.  We were not doing either, so applications which use newlocale()
to modify an existing base locale end up leaking memory on FreeBSD.

This diff fixes the leak by releasing a reference to the base locale
before returning.  This is less efficient than modifying "base"
directly, but is simpler for an initial bug fix.  Also, update the man
page to clarify behaviour with respect to "base".

PR:		249416
MFC after:	3 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D26522
2020-10-02 18:35:55 +00:00
Ed Maste
da6e5efe92 libmd: add dependency workaround for r366344
r366344 fixed and reenabled the assembly optimized skein implementation,
but skein_block objects were not being rebuilt in no-clean builds. This
resulted in failing no-clean builds. SKEIN_USE_ASM controls which
routines come from C vs assembly, and with no explicit dependency
r366344's change to SKEIN_USE_ASM did not cause skein_block.{o,pico}
to be rebuilt.

Add a dependency on this Makefile for the skein_block objects. This
dependency is broader in scope than absolutely required (that is, the
skein_block objects will now be rebuilt on any change to this Makefile).
There are ways this could be addressed, but it is probably not worth the
additional effort or testing time to pursue them.

PR:		248221
Reported by:	kevans, Jeremy Faulkner
Discussed with:	kevans
Sponsored by:	The FreeBSD Foundation
2020-10-02 14:00:52 +00:00
Ed Maste
36972ee3e0 libmd: fix assembly optimized skein implementation
The assembly implementation incorrectly used logical AND instead of
bitwise AND. Fix, and re-enable in libmd.

Submitted by:	Yang Zhong <yzhong@freebsdfoundation.org>
Reviewed by:	cem (earlier)
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D26614
2020-10-01 21:05:50 +00:00
Kyle Evans
320ef1bef0 auxv: partially revert r366207, cast buflen to unsigned int as needed
The warning generated pre-r366207 is actually a sign comparison warning:

error: comparison of integers of different signs: 'unsigned long' and 'int'
                        if (strlcpy(buf, execpath, buflen) >= buflen)

Revert parts that affected other lines and just cast this to unsigned int.

The buflen < 0 -> EINVAL has been kept despite no longer serving any
purposes w.r.t. sign-extension because I do believe it's the right thing to
do: "The provided buffer was not the right size for the requested item."

The original warning is confirmed to still be gone with an:
env WARNS=6 make WITHOUT_TESTS=yes.

Reviewed by:	asomers, kib
X-MFC-With:	r366207
Differential Revision:	https://reviews.freebsd.org/D26631
2020-10-01 19:56:38 +00:00
Dimitry Andric
8833aad7be Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
release/11.x llvmorg-11.0.0-rc5-0-g60a25202a7d.

MFC after:	4 weeks
X-MFC-With:	r364284
2020-10-01 19:06:07 +00:00
Enji Cooper
c9d175ea90 Eliminate duplicate afterinstallconfigs target
Define separate dependent targets which `afterinstallconfigs` relies on, in
order to modify `${DESTDIR}/etc/master.passwd` and
`${DESTDIR}/etc/nsswitch.conf`.

Mark these targets .PHONY, since they manipulate configurations on the fly and
the generation logic isn't 100% defined in terms of the source files/logic,
and is variable, based on MK_foo flags.

MFC after:	2 weeks
Reviewed by:	bapt, brd
Differential Revision:	https://reviews.freebsd.org/D20330
2020-10-01 16:37:49 +00:00
Kyle Evans
7cc42f6d25 Do a sweep and remove most WARNS=6 settings
Repeating the default WARNS here makes it slightly more difficult to
experiment with default WARNS changes, e.g. if we did something absolutely
bananas and introduced a WARNS=7 and wanted to try lifting the default to
that.

Drop most of them; there is one in the blake2 kernel module, but I suspect
it should be dropped -- the default WARNS in the rest of the build doesn't
currently apply to kernel modules, and I haven't put too much thought into
whether it makes sense to make it so.
2020-10-01 01:10:51 +00:00
Warner Losh
61c4a6f317 Updates to chroot(2) docs
1. Note what settings give historic behavior
2. Recommend jail under security considerations.
2020-09-29 18:13:54 +00:00
Alan Somers
d14f60e9ba Misc compiler warning fixes in lib/libc
Reviewed by:	kevans, imp
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D26534
2020-09-27 22:26:41 +00:00
Alan Somers
90ec6a3035 lib/libc/tests/iconv: raise WARNS to 6
MFC after:	2 weeks
2020-09-24 21:42:44 +00:00
Alan Somers
9f036e84fb lib/libc/tests/sys: raise WARNS to 6
MFC after:	2 weeks
2020-09-24 21:39:09 +00:00
Brandon Bergren
bceb5a2c8d [PowerPC64LE] Pass our byte order to the sqlite3 build.
Due to the sqlite3 endian detection code preferring to check platform defines
instead of checking endian defines, it is necessary to manually set
the endianness on PowerPC64LE.

Unlike other bi-endian platforms, PowerPC64LE relies entirely on the
generic endianness macros like __BYTE_ORDER__ and has no platform-specific
define to denote little endian.

Add -DSQLITE_BYTEORDER=1234 to the CFLAGS when building libsqlite3 on
powerpc64le.

Fixes runtime operation of sqlite on PowerPC64LE.

Sponsored by:	Tag1 Consulting, Inc.
2020-09-23 02:17:44 +00:00
Brandon Bergren
f4eb39ba6b [PowerPC64LE] libkvm powerpc64le support.
* Add missing _kvm16toh() function.
* Teach libkvm about powerpc64le.

Sponsored by:	Tag1 Consulting, Inc.
2020-09-23 02:11:24 +00:00
Brandon Bergren
b257310103 [PowerPC64LE] Fix gdtoa configurations on LE.
gdtoa wins the award for "most outdated endianness naming convention"
with its IEEE_8087 vs IEEE_MC68k defines. I had a good chuckle.

Update softfloat and arith.h to adjust to BE or LE automatically
based on the low level preprocessor defines.

Fixes printf/scanf on PowerPC64LE, although there is still a problem
lurking regarding Signalling NaNs...

Sponsored by:	Tag1 Consulting, Inc.
2020-09-23 02:05:44 +00:00
Brandon Bergren
24faccc241 [PowerPC64LE] Use a shared LIBC_ARCH for powerpc64le.
Given that we have converted to ELFv2 for BE already, endianness is the only
difference between the two ARCHs.

As such, there is no need to differentiate LIBC_ARCH between the two.

Combining them like this lets us avoid needing to have two copies of several
bits for no good reason.

Sponsored by:	Tag1 Consulting, Inc.
2020-09-23 00:21:51 +00:00
Konstantin Belousov
1f305be431 Document {O,AT}_RESOLVE_BENEATH and new O_BENEATH behavior for relative paths.
PR:	248335
Reviewed by:	markj
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D25886
2020-09-22 22:54:54 +00:00
Vincenzo Maffione
92c5d82c86 libnetmap: fix cast from uint64_t to void*
We use uintptr_t as an intermediate cast to avoid compiler
warnings on 32 bit architectures.

Reported by:	adrian
MFC after:	3 days
2020-09-22 20:20:43 +00:00
D Scott Phillips
00e6614750 Sparsify the vm_page_dump bitmap
On Ampere Altra systems, the sparse population of RAM within the
physical address space causes the vm_page_dump bitmap to be much
larger than necessary, increasing the size from ~8 Mib to > 2 Gib
(and overflowing `int` for the size).

Changing the page dump bitmap also changes the minidump file
format, so changes are also necessary in libkvm.

Reviewed by:	jhb
Approved by:	scottl (implicit)
MFC after:	1 week
Sponsored by:	Ampere Computing, Inc.
Differential Revision:	https://reviews.freebsd.org/D26131
2020-09-21 22:21:59 +00:00
Toomas Soome
e307eb94ae loader: zfs should support bootonce an nextboot
bootonce feature is temporary, one time boot, activated by
"bectl activate -t BE", "bectl activate -T BE" will reset the bootonce flag.

By default, the bootonce setting is reset on attempt to boot and the next
boot will use previously active BE.

By setting zfs_bootonce_activate="YES" in rc.conf, the bootonce BE will
be set permanently active.

bootonce dataset name is recorded in boot pool labels, bootenv area.

in case of nextboot, the nextboot_enable boolean variable is recorded in
freebsd:nvstore nvlist, also stored in boot pool label bootenv area.
On boot, the loader will process /boot/nextboot.conf if nextboot_enable
is "YES", and will set nextboot_enable to "NO", preventing /boot/nextboot.conf
processing on next boot.

bootonce and nextboot features are usable in both UEFI and BIOS boot.

To use bootonce/nextboot features, the boot loader needs to be updated on disk;
if loader.efi is stored on ESP, then ESP needs to be updated and
for BIOS boot, stage2 (zfsboot or gptzfsboot) needs to be updated
(gpart or other tools).

At this time, only lua loader is updated.

Sponsored by:	Netflix, Klara Inc.
Differential Revision:	https://reviews.freebsd.org/D25512
2020-09-21 09:01:10 +00:00
Stefan Eßer
fcce470c2b Apply an opimization for the kernels used by cexp(x) and cexpf(x) submitted
by Steve Kargl:

- Use sincos[f] instead of a call to cos[f] and a call to sin[f].

- While here, alphabetize declaration.

Submitted by:   sgk at troutmask.apl.washington.edu (Steve Kargl)
2020-09-20 05:32:53 +00:00
Stefan Eßer
a67cc94327 Apply fix for ld80 and ld128 submitted by Steve Kargl:
- Micro-optimization: use sincosl(x) instead of a call to cosl(x) and
  a call to sinl(x).  Argument reduction is done once not twice.

- Use a long double constant instead of an invalid double constant.

- Spell scale2 correctly

He could not test ld128, so that patch is untested.

Submitted by:	sgk at troutmask.apl.washington.edu (Steve Kargl)
2020-09-20 05:28:31 +00:00
Kirk McKusick
85ee267a3e Update the libufs cgget() and cgput() interfaces to have a similar
API to the sbget() and sbput() interfaces. Specifically they take
a file descriptor pointer rather than the struct uufsd *disk pointer
used by the libufs cgread() and cgwrite() interfaces. Update fsck_ffs
to use these revised interfaces.

No functional changes intended.

Sponsored by: Netflix
2020-09-19 22:48:30 +00:00
Alan Somers
9ad1d357e0 fix integer underflow in getgrnam_r and getpwnam_r
Sometimes nscd(8) will return a 1-byte buffer for a nonexistent entry. This
triggered an integer underflow in grp_unmarshal_func, causing getgrnam_r to
return ERANGE instead of 0.

Fix the user's buffer size check, and add a correct check for a too-small
nscd buffer.

PR:		248932
Event:		September 2020 Bugathon
Reviewed by:	markj
MFC after:	2 weeks
Sponsored by:	Axcient
Differential Revision: https://reviews.freebsd.org/D26204
2020-09-19 19:08:27 +00:00
Kyle Evans
fe815331bb build: provide a default WARNS for all in-tree builds
The current default is provided in various Makefile.inc in some top-level
directories and covers a good portion of the tree, but doesn't cover parts
of the build a little deeper (e.g. libcasper).

Provide a default in src.sys.mk and set WARNS to it in bsd.sys.mk if that
variable is defined. This lets us relatively cleanly provide a default WARNS
no matter where you're building in the src tree without breaking things
outside of the tree.

Crunchgen has been updated as a bootstrap tool to work on this change
because it needs r365605 at a minimum to succeed. The cleanup necessary to
successfully walk over this change on WITHOUT_CLEAN builds has been added.

There is a supplemental project to this to list all of the warnings that are
encountered when the environment has WARNS=6 NO_WERROR=yes:
https://warns.kevans.dev -- this project will hopefully eventually go away
in favor of CI doing a much better job than it.

Reviewed by:	emaste, brooks, ngie (all earlier version)
Reviewed by:	emaste, arichardson (depend-cleanup.sh change)
Differential Revision:	https://reviews.freebsd.org/D26455
2020-09-18 17:17:46 +00:00
Alex Richardson
c5ef56ea61 Remove unnecessary include "../Makefile.inc"
This is already pulled in by bsd.init.mk.

Reported By:	kevans
2020-09-18 14:05:31 +00:00
Mark Johnston
3d1098617b Fix error checking in shm_create_largepage().
Reviewed by:	alc, kib
Reported by:	Coverity
MFC with:	r365524
Differential Revision:	https://reviews.freebsd.org/D26464
2020-09-18 12:30:15 +00:00
Alex Richardson
72f97a2d09 libarchive: fix mismatch between library and test configuration
I was investigating libarchive test failures on CheriBSD and it turns out
we get a reproducible SIGBUS for test_archive_m5, etc. Debugging this shows
that libarchive and the tests disagree when it comes to the definition of
archive_md5_ctx: libarchive assumes it's the OpenSSL type whereas the test
use the libmd type. The latter is not necessarily aligned enough to store
a pointer (16 bytes for CHERI RISC-V), so we were crashing when storing
EVP_MD_CTX* to an 8-byte-aligned archive_md5_ctx.

To avoid problems like this in the future, factor out the common compiler
flags into a Makefile.inc and include that from the tests Makefile.

Reviewed By:	lwhsu
Differential Revision: https://reviews.freebsd.org/D26469
2020-09-18 11:22:34 +00:00
Eric van Gyzen
acde2586c9 Fix additional memory leak in process_mapfile
Additional Coverity detected memory leak fix.

Submitted by:	bret_ketchum@dell.com
Reported by:	Coverity
Reviewed by:	cem, emaste
MFC after:	2 weeks
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D26462
2020-09-17 18:24:51 +00:00
Dimitry Andric
16d6b3b3da Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
release/11.x llvmorg-11.0.0-rc2-91-g6e042866c30.

MFC after:	6 weeks
X-MFC-With:	r364284
2020-09-16 16:58:29 +00:00
Andrew Turner
2a6803de1c Use MACHINE_CPUARCH when checking for arm64
Use MACHINE_CPUARCH with arm64 (aarch64) when we build code that could run
on any 64-bit Arm instruction set. This will simplify checks in downstream
consumers targeting prototype instruction sets.

The only place we check for MACHINE_ARCH == aarch64 is when building the
device tree blobs. As these are targeting current generation ISAs.

Sponsored by:	Innovate UK
Differential Revision:	https://reviews.freebsd.org/D26370
2020-09-14 16:12:28 +00:00
Edward Tomasz Napierala
2ccf8a827c Skip armv7 bectl tests on CI; they deadlock (""KSTACK_PAGES is 2").
PR:		249229
Sponsored by:	DARPA
2020-09-14 10:35:39 +00:00
Kyle Evans
ecebb3cc1d Only set WARNS if not defined
This would allow interested parties to do experimental runs with an
environment set appropriately to raise all the warnings throughout the
build; e.g. env WARNS=6 NO_WERROR=yes buildworld.

Not currently touching the numerous instances in ^/tools.

MFC after:	1 week
2020-09-11 13:28:37 +00:00
Kyle Evans
8b8cf4ece6 memfd_create: simplify HUGETLB support a little bit
This also fixes a minor issue that was missed in the initial review; the
layout of the MFD_HUGE_* flags is actually not 1:1 bit:flag -- it instead
borrowed the Linux convention of how this is laid out since it was
originally implemented on Linux, the top 6 bits represent the shift required
for the requested page size.

This allows us to remove the flag <-> pgsize mapping table and simplify the
logic just prior to validation of the requested page size.

While we're here, fix two small nits:

- HUGETLB memfd shouldn't exhibit the SHM_GROW_ON_WRITE behavior. We can
  only grow largepage shm by appropriately aligned (i.e. requested pagesize)
  sizes, so it can't work in the typical/sane fashion. Furthermore, Linux
  does the same, so let's be compatible.

- We don't allow MFD_HUGETLB without specifying a pagesize, so no need to
  check for that later.

Reviewed by:	kib (slightly earlier version)
2020-09-11 02:02:15 +00:00
Kyle Evans
9bf2b80ca6 memfd_create: fix return values
Literally returning EINVAL from a function designed to return an fd makes
for interesting scenarios.

I cannot assign enough pointy hats to cover this one.
2020-09-10 21:25:16 +00:00
Kyle Evans
944174e7bf Fix memfd_create tests after r365524
r365524 did accidentally invert this check that sets SHM_LARGEPAGE, leading
non-hugetlb memfd as unconfigured largepage shm and thus test failures when
we try to ftruncate or write to them.

PR:		249236
Discussed with:	kib
2020-09-10 17:23:30 +00:00
Dimitry Andric
18ed63b8f1 Follow-up r364753 by only using arm's stdatomic.c implementation, as it
already covers the functions in compiler-rt's atomic.c, leading to
conflicts when linking.

PR:		230888
MFC after:	3 days
X-MFC-With:	r364753
2020-09-10 16:47:12 +00:00
Alex Richardson
e17ebfd3b7 Remove -I flag for include path that doesn't exist
Found this while trying to get macOS bootstrap to work again after OpenZFS merge.

Reviewed By:	#zfs, freqlabs
Differential Revision: https://reviews.freebsd.org/D26192
2020-09-10 15:37:07 +00:00
Konstantin Belousov
3ef55e8f25 Add shm_create_largepage(3) helper for creation and configuration of
largepage shm objects.

And since we can, add memfd_create(MFD_HUGETLB) support, hopefully
close enough to the Linux feature.

Reviewed by:	markj
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D24652
2020-09-09 22:20:36 +00:00
Konstantin Belousov
1352798db3 Fix compilation of libsysdecode after r365522, should have been part of it.
Reviewed by:	markj
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D24652
2020-09-09 22:18:44 +00:00
Dimitry Andric
c90cb43503 Follow-up r364753 by enabling compiler-rt's atomic implementation only
for clang, as it uses clang specific builtins, and does not compile
correctly with gcc. Note that gcc packages usually come with their own
libatomic, providing these primitives.

PR:		230888
MFC after:	3 days
X-MFC-With:	r364753
2020-09-09 20:48:57 +00:00
Kyle Evans
69112cca60 getlogin_r: fix the type of len
getlogin_r is specified by POSIX to to take a size_t len, not int. Fix our
version to do the same, bump the symbol version due to ABI change and
provide compat.

This was reported to break compilation of Ruby 2.8.

Some discussion about the necessity of the ABI compat did take place in the
review. While many 64-bit platforms would likely be passing it in a 64-bit
register and zero-extended and thus, not notice ABI breakage, some do
sign-extend (e.g. mips).

PR:		247102
Submitted by:	Bertram Scharpf <software@bertram-scharpf.de> (original)
Submitted by:	cem (ABI compat)
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D26335
2020-09-09 18:07:13 +00:00
Kyle Evans
0e907c045b libc tests: dynthr_mod: fix some WARNS issues
This is being addressed as part of a side-patch I'm working on that builds
all the things with WARNS=6, instead of relying on it being supplied in just
shallow parts of the build with higher-level Makefile.inc.

Provide a prototype for mod_main and annotate the thread function argument
as unused.

MFC after:	1 week
2020-09-09 02:45:47 +00:00
Kyle Evans
5593499d4a libc/resolv: attempt to fix the test under WARNS=6
In a side-change that I'm working on to start defaulting src builds to
WARNS=6 where WARNS isn't otherwise specified, GCC6 (and clang, to a lesser
extent) pointed out a number of issues with the resolv tests:

- Global method variable that gets shadowed in run_tests()
- Signed/unsigned comparison between i in run_tests() and hosts->sl_cur

The shadowed variable looks like it might actually be bogus as written, as
we pass it to RUN_TESTS -> run_tests, but other parts use the global method
instead. This change is mainly geared towards correcting that by removing
the global and plumbing the method through from run_tests -> run into the
new thread.

For the signed/unsigned comparison, there's no compelling reason to not just
switch i/nthreads/nhosts to size_t.

The review also included a change to the load() function that was better
addressed by jhb in r365302.

Reviewed by:	ngie, pstef
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D24844
2020-09-09 02:42:21 +00:00
Brandon Bergren
328b5f2570 [PowerPC] Implement VDSO timebase access on powerpc*
Implement the remaining pieces needed to allow userland timestamp reading.

Rewritten based on an intial essay into the problem by Justin Hibbits.
(Copyright changed to my own on his request.)

Tested on ppc64 (POWER9 Talos II), powerpcspe (e500v2 RB800), and
powerpc (g4 PowerBook).

Reviewed by:	jhibbits (in irc)
Sponsored by:	Tag1 Consulting, Inc.
Differential Revision:	https://reviews.freebsd.org/D26347
2020-09-08 03:00:31 +00:00
Dimitry Andric
86b019c29a Follow-up r365371 by removing sentences which indicate the state of the
MK_MALLOC_PRODUCTION option on -CURRENT.

Also, for the sake of backwards compatibility, support the old way of
enabling 'production malloc', e.g. by adding a define in make.conf(5).

MFC after:	1 week
X-MFC-With:	r365371
2020-09-06 09:08:06 +00:00
Dimitry Andric
7d4374f65f Turn MALLOC_PRODUCTION into a regular src.conf(5) option
For historical reasons, defining MALLOC_PRODUCTION in /etc/make.conf has
been used to turn off potentially expensive debug checks and statistics
gathering in the implementation of malloc(3).

It seems more consistent to turn this into a regular src.conf(5) option,
e.g. WITH_MALLOC_PRODUCTION / WITHOUT_MALLOC_PRODUCTION. This can then
be toggled similar to any other source build option, and turned on or
off by default for e.g. stable branches.

Reviewed by:	imp, #manpages
MFC after:	1 week
Differential Revision: https://reviews.freebsd.org/D26337
2020-09-05 23:30:17 +00:00
Matt Macy
eac7052fde ZFS: MFV 2.0-rc1-gfd20a8
- fixes jail delegation
- fixes raw kstat unsupported complaints
- exposes dbgmsg, dbuf, and checksum benchmark stats
- restore rename -u support
2020-09-04 22:25:14 +00:00
Matt Macy
adfd5c1bd9 Another missed move 2020-09-04 21:55:35 +00:00
Matt Macy
431004027d Update vendor openzfs to fd20a8 2020-09-04 21:31:58 +00:00
Dimitry Andric
a2a9ef4beb Add a few more files to libllvm, which are required when doing sanitized
builds, for example with -fsanitize=undefined.

MFC after:	6 weeks
X-MFC-With:	r364284
2020-09-03 18:27:13 +00:00
John Baldwin
2afeaad315 Various fixes to the load() function.
- Use getline() instead of fgetln().  This ensures the returned string
  is always null-terminated without losing the last character if the
  last line in a file doesn't have a newline.  Also, while fgetln says
  the returned buffer can be modified, that doesn't actually seem safe
  as the current implementation means you are modifying stdio's
  internal buffer.

- Remove a spurious if before an ATF_REQUIRE that was clearly supposed
  to be non-optional.

- Remove a pointless compare of 'ptr' against '\0' (really NULL) that
  duplicated the middle condition in the for().

- Once a comment is found, skip the rest of the line, not just the
  current word.

Reviewed by:	kevans
Obtained from:	CheriBSD
Sponsored by:	DARPA
Differential Revision:	https://reviews.freebsd.org/D26278
2020-09-03 14:50:15 +00:00
Stephen J. Kiernan
2d012dff57 Avoid issues with STAGING by using LIBUCL_DIR for the source directory
variable name instead of LIBUCL (which would otherwise end up with the
staging directory used instead of the wanted source directory.)

Reviewed by:	sjg
Obtained from:	Juniper Networks, Inc.
2020-09-03 03:48:42 +00:00
John Baldwin
4d135bbd7f libifconfig now depends on libm due to usage of log10().
ld.bfd in particular requires -lm to come after libifconfig on the
command line when linking rescue.

Reviewed by:	freqlabs, adrian
Differential Revision:	https://reviews.freebsd.org/D26258
2020-09-02 22:10:08 +00:00
John Baldwin
875e04d716 Pass a valid mode with O_CREATE to open(2).
CheriABI is pickier about the arguments to open(2) and crashes with a
fault if a mode isn't passed to an open() when O_CREATE is specified.

Reported by:	CHERI
Reviewed by:	brooks
Obtained from:	CheriBSD
MFC after:	2 weeks
Sponsored by:	DARPA
Differential Revision:	https://reviews.freebsd.org/D26281
2020-09-02 21:17:54 +00:00
John Baldwin
97bdc65f27 Don't assume objects in program sections have a size of a pointer.
The size of the object at 'addr' is unknown and might be smaller than
the size of a pointer (e.g. some x86 instructions are smaller than a
pointer).  Instead, just check that the address is in the bounds of
the program header.

Reported by:	CHERI (indirectly)
Reviewed by:	kib, brooks
Obtained from:	CheriBSD
MFC after:	1 week
Sponsored by:	DARPA
Differential Revision:	https://reviews.freebsd.org/D26279
2020-09-02 20:43:08 +00:00
John Baldwin
1a4531bc98 Compute the correct size of the string to move forward.
Previously this was counting the amount of spare room at the start of
the buffer that the string needed to move forward and passing that as
the number of bytes to copy to memmove rather than the length of the
string to be copied.

In the strfmon test in the test suite this caused the memmove to
overflow the allocated buffer by one byte which CHERI caught.

Reported by:	CHERI
Reviewed by:	kevans
Obtained from:	CheriBSD
MFC after:	1 week
Sponsored by:	DARPA
Differential Revision:	https://reviews.freebsd.org/D26280
2020-09-02 20:04:26 +00:00
Li-Wen Hsu
0932ee9fa0 Temporarily skip tests panic i386 kernel in CI
lib.libbe.be_create.libbe_create
sbin.bectl.bectl_test.bectl_create

PR:		249055
Sponsored by:	The FreeBSD Foundation
2020-09-02 19:18:27 +00:00
Mark Johnston
847ab36bf2 Include the psind in data returned by mincore(2).
Currently we use a single bit to indicate whether the virtual page is
part of a superpage.  To support a forthcoming implementation of
non-transparent 1GB superpages, it is useful to provide more detailed
information about large page sizes.

The change converts MINCORE_SUPER into a mask for MINCORE_PSIND(psind)
values, indicating a mapping of size psind, where psind is an index into
the pagesizes array returned by getpagesizes(3), which in turn comes
from the hw.pagesizes sysctl.  MINCORE_PSIND(1) is equal to the old
value of MINCORE_SUPER.

For now, two bits are used to record the page size, permitting values
of MAXPAGESIZES up to 4.

Reviewed by:	alc, kib
Sponsored by:	Juniper Networks, Inc.
Sponsored by:	Klara, Inc.
Differential Revision:	https://reviews.freebsd.org/D26238
2020-09-02 18:16:43 +00:00
John Baldwin
ff38047b0c Fix a buffer overrun.
getln() returns 'len' valid characters.  line[len] is out of bounds.

Reported by:	CHERI
Reviewed by:	brooks
Obtained from:	CheriBSD
MFC after:	2 weeks
Sponsored by:	DARPA
Differential Revision:	https://reviews.freebsd.org/D26197
2020-09-01 16:20:42 +00:00
Vincenzo Maffione
4c067f3842 lib: libnetmap: add missing copyright headers
MFC after:	2 weeks
2020-09-01 06:06:32 +00:00
John Baldwin
d10af81d2d Fix the build of scandir_b with GCC.
Use explicit typedefs for block thunk structures as in r264143.

Reviewed by:	kib, adrian
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D26256
2020-08-31 21:55:25 +00:00
Eric van Gyzen
4644463cac libpmc: Fix memory leak in process_mapfile
Coverity detected memory leak fix.

Submitted by:	bret_ketchum@dell.com
Reported by:	Coverity
Reviewed by:	cem
MFC after:	2 weeks
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D26230
2020-08-31 16:07:40 +00:00
Vincenzo Maffione
5c4f8d801c lib: add libnetmap
This changeset introduces the new libnetmap library for writing
netmap applications.
Before libnetmap, applications could either use the kernel API
directly (e.g. NIOCREGIF/NIOCCTRL) or the simple header-only-library
netmap_user.h (e.g. nm_open(), nm_close(), nm_mmap() etc.)

The new library offers more functionalities than netmap_user.h:
  - Support for complex netmap options, such as external memory
    allocators or per-buffer offsets. This opens the way to future
    extensions.
  - More flexibility in the netmap port bind options, such as
    non-numeric names for pipes, or the ability to specify the netmap
    allocator that must be used for a given port.
  - Automatic tracking of the netmap memory regions in use across the
    open ports.

At the moment there is no man page, but the libnetmap.h header file
has in-depth documentation.

Reviewed by:	hrs
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D26171
2020-08-28 20:03:54 +00:00
Eric van Gyzen
a2e194654f memstat_kvm_uma: fix reading of uma_zone_domain structures
Coverity flagged the scaling by sizeof(uzd).  That is the type
of the pointer, so the scaling was already done by pointer arithmetic.
However, this was also passing a stack frame pointer to kvm_read,
so it was doubly wrong.

Move ZDOM_GET into the !_KERNEL section and use it in libmemstat.

Reported by:	Coverity
Reviewed by:	markj
MFC after:	2 weeks
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D26213
2020-08-28 19:50:40 +00:00
Matt Macy
93ddd0259d update vendor openzfs to a00c61 (2.0-rc1) 2020-08-28 18:41:28 +00:00
Alex Richardson
18de62a94a Move libsqlite3 to the top of the SUBDIR list
In parallel builds, this should allow sqlite to start building earlier and
increase parallelism when building lib/. Looking at htop output during
buildworld/tinderbox, there are long phases where only one CPU is active
optimizing the massive sqlite3.c file since the build of libsqlite3 is
started quite late.

Reviewed By:	emaste
Differential Revision: https://reviews.freebsd.org/D26169
2020-08-26 09:19:49 +00:00
Dimitry Andric
cc0b883028 After r364423, which ensures the callbacks that dl_iterate_phdr(3)
performs are protected by an exclusive lock, even for statically linked
programs, it is safe to re-enable libunwind's FrameHeaderCache, which I
temporarily disabled in r364263.

Meanwhile upstream has also used the _LIBUNWIND_USE_FRAME_HEADER_CACHE
for this purpose, so the only thing needed is to add this as a
compile-time command line flag.

While here, reformat the CFLAGS lines a little bit.

MFC after:	6 weeks
X-MFC-With:	r364284, r364423
2020-08-25 20:07:11 +00:00
Dimitry Andric
0709bb1f41 After r364753, there should be no need to suppress -Watomic-alignment
warnings anymore for compiler-rt's atomic.c. This occurred because the
IS_LOCK_FREE_8 macro was not correctly defined to 0 for mips, and this
caused the compiler to emit a runtime call to __atomic_is_lock_free(),
and that triggers the warning.

MFC after:	2 weeks
X-MFC-With:	r364753
2020-08-25 19:57:11 +00:00
Kyle Evans
5e6a7bc6c1 libbe: lift the WARNS post-OpenZFS merge
sys/ccompile.h no longer uses #pragma ident, so we no longer need to worry
about unknown pragmas.

I fixed one WARNS issue in r363409 by annotating be_is_auto_snapshot_name's
lbh parameter __unused, then upstreamed the following changes to OpenZFS
that rode in with the merge:
- zfs_path_to_zhandle now takes a const char *path rather than a char *path,
  since it won't be mutating the string it receives and I had no reason to
  believe it will need to in the future. [OpenZFS PR #10605]
- Annotated some unused parameters on definitions inlined into headers as
  such. [OpenZFS PR #10606]
2020-08-25 18:16:40 +00:00
Alex Richardson
0c54932d50 Fix -Wundef warnings when building liblua
We need to define the LUA_FLOAT_INT64 macro even if we don't use it (copied
from stand/luaconf.h). While touching luaconf.h.dist also sync it with the
the 5.3.5 release version (matches the one in lib/liblua).

Reviewed By:	kevans
Differential Revision: https://reviews.freebsd.org/D25977
2020-08-25 13:30:34 +00:00
Alex Richardson
7ec1ec4fdb Add missing FreeBSD functions to -legacy when building on macOS/Linux
In most cases this simply builds the file from lib/libc for missing
functions (e.g. strlcpy on Linux etc.). In cases where this is not possible
I've added an implementation to tools/build/cross-build.

The fgetln.c/fgetwln.c/closefrom.c compatibility code was obtained from
https://gitlab.freedesktop.org/libbsd/libbsd, but I'm not sure it makes
sense to import it into to contrib just for these three bootstrap files.

Reviewed By:	brooks
Differential Revision: https://reviews.freebsd.org/D25978
2020-08-25 13:23:31 +00:00
Dimitry Andric
46c8c5540f Add atomic and bswap functions to libcompiler_rt
There have been several mentions on our mailing lists about missing
atomic functions in our system libraries (e.g. __atomic_load_8 and
friends), and recently I saw __bswapdi2 and __bswapsi2 mentioned too.

To address this, add implementations for the functions from compiler-rt
to the system compiler support libraries, e.g. libcompiler_rt.a and and
libgcc_s.so.

This also needs a small fixup in compiler-rt's atomic.c, to ensure that
32-bit mips can build correctly.

Bump __FreeBSD_version to make it easier for port maintainers to detect
when these functions were added.

MFC after:	2 weeks
Differential Revision: https://reviews.freebsd.org/D26159
2020-08-25 06:49:10 +00:00
Matt Macy
9e5787d228 Merge OpenZFS support in to HEAD.
The primary benefit is maintaining a completely shared
code base with the community allowing FreeBSD to receive
new features sooner and with less effort.

I would advise against doing 'zpool upgrade'
or creating indispensable pools using new
features until this change has had a month+
to soak.

Work on merging FreeBSD support in to what was
at the time "ZFS on Linux" began in August 2018.
I first publicly proposed transitioning FreeBSD
to (new) OpenZFS on December 18th, 2018. FreeBSD
support in OpenZFS was finally completed in December
2019. A CFT for downstreaming OpenZFS support in
to FreeBSD was first issued on July 8th. All issues
that were reported have been addressed or, for
a couple of less critical matters there are
pull requests in progress with OpenZFS. iXsystems
has tested and dogfooded extensively internally.
The TrueNAS 12 release is based on OpenZFS with
some additional features that have not yet made
it upstream.

Improvements include:
  project quotas, encrypted datasets,
  allocation classes, vectorized raidz,
  vectorized checksums, various command line
  improvements, zstd compression.

Thanks to those who have helped along the way:
Ryan Moeller, Allan Jude, Zack Welch, and many
others.

Sponsored by:	iXsystems, Inc.
Differential Revision:	https://reviews.freebsd.org/D25872
2020-08-25 02:21:27 +00:00
Matt Macy
3b0ce0e28d Vendor import of openzfs master @ 184df27eef0abdc7ab2105b21257f753834b936b
Sponsored by:	iX Systems, Inc.
2020-08-24 22:48:19 +00:00
Dimitry Andric
75b4d546cd Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
release/11.x llvmorg-11.0.0-rc2-0-g414f32a9e86.

MFC after:	6 weeks
X-MFC-With:	r364284
2020-08-24 17:43:23 +00:00
Alex Richardson
0b862b0399 Avoid adding duplicates to SRCS/OBJS/SOBJS/POBJS
This is a change in preparation for stopping to use lorder.sh (D26044) and
instead assume that we have a linker newer than ~1990. Without lorder.sh
duplicates end up being passed to the linker when building .so files and this
can result in duplicate symbol definition errors.

There is one minor change: libcompiler_rt.a will no longer provide
gcc_personality_v0 and instead we now only have it in libgcc_eh.a/libgcc_s.so.
This matches GCC's behaviour.

Reviewed By:	emaste, cem
Differential Revision: https://reviews.freebsd.org/D26042
2020-08-24 09:20:33 +00:00
Mateusz Guzik
992bcb37c2 libc: hide alphasort_thunk behind I_AM_SCANDIR_B
Should unbreak gcc build as reported by tinderbox:
lib/libc/gen/scandir.c:59:12: warning: 'alphasort_thunk' declared 'static' but never defined [-Wunused-function]
2020-08-23 11:06:59 +00:00
Dimitry Andric
1c1ab42925 Add a missed source file for LLVM's BPF target. This target is not
enabled by default, so I forgot about it, apologies for the breakage.

Reported by:	hrs
MFC after:	6 weeks
X-MFC-With:	r364284
2020-08-22 15:31:56 +00:00
Dimitry Andric
c37f312d3b Add a few new source files to libc++, in particular the implementation
part of std::random_shuffle. These were split off at some point by
upstream, but I forgot to add them to our Makefile.

This should allow some ports which use std::random_shuffle to correctly
link again.

Reported by:	thierry
PR:		248795
MFC after:	6 weeks
X-MFX-With:	r364284
2020-08-22 12:05:11 +00:00
Simon J. Gerraty
0929924b61 veloader: insist on verifying .4th .lua etc
When files are read from .rc or .4th, verify_file is asked to
guess the severity (VE_TRY,VE_WANT,VE_MUST)

Reviewed by:	stevek
MFC after:	1 week
Sponsored by:	Juniper Networks
2020-08-21 00:27:06 +00:00
Konstantin Belousov
22517af2c1 dl_iterate_phdr(3): provide exclusive locking for callback when statically linked.
Apparently llvm unwinder depends on the external locking for callback.

Reviewed by:	cem, emaste
Tested by:	emaste
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D26109
2020-08-20 15:19:09 +00:00
Rick Macklem
a8537fe404 Add MSG_TLSAPPDATA to lib/libsysdecode/mktables.
I have no idea what this does (and until now that it even existed), but
apparently it needs this entry changed for the MSG_TLSAPPDATA, since
it is kernel only.
2020-08-20 03:53:18 +00:00
Dimitry Andric
7eee172052 Fix the mips64 world build after r364284.
Linking the full version of clang 11 results in errors similar to:

lld: error: /usr/src/contrib/llvm-project/clang/lib/StaticAnalyzer/Frontend/AnalysisConsumer.cpp:736:(.text._ZN5clang4ento22CreateAnalysisConsumerERNS_16CompilerInstanceE+0xE0): relocation R_MIPS_CALL16 out of range: 48920 is not in [-32768, 32767]; references operator new(unsigned long)

Add -mxgot to the compilation flags for llvm libraries to work around
this error. This may be too big of a hammer, but it can always be
refined later.

MFC after:	6 weeks
2020-08-19 17:05:30 +00:00
Konstantin Belousov
92ca23a4b8 scandir-compat11.c: Remove unused declaration for qsort_b().
Sponsored by:	The FreeBSD Foundation
MFC after:	0 days
2020-08-17 19:14:09 +00:00
Conrad Meyer
cb1480f8d4 gpart(8): Recognize apple-zfs and solaris-reserved partition ids
Introduce G_PART_ALIAS_SOLARIS_RESERVED, GPT_ENT_TYPE_SOLARIS_RESERVED et al.,
to make gpart show output more convenient on systems with illumos/openindiana
disks visible.

Submitted by:	Juraj Lutter <otis AT sk.FreeBSD.org>
Reviewed by:	bcr(manpages), delphij, myself
Differential Revision:	https://reviews.freebsd.org/D26012
2020-08-17 17:07:05 +00:00
Bjoern A. Zeeb
fd6eb8fec7 80211: consistently spell 80P80
The standard uses 80+80 and 80p80 but nowhere 80_80.
Switch the latter to 80P80 for all the macros and comments refering
to #defined flags which I could find.
The only place we leave as 80p80 is the ifconfig command line arguments
as we spell them all in lower case.
Ideally we would use 80+80 for any interactions with the user and
80P80 for anything internal but let us not confuse parsers and
hence avoid the '+' in either case.

Reviewed by:	adrian, gnn
MFC after:	2 weeks
Sponsored by:	Rubicon Communications, LLC (d/b/a "Netgate")
Differential Revision:	https://reviews.freebsd.org/D26001
2020-08-17 12:52:57 +00:00
Xin LI
941791759c Don't explicitly specify c99 or gnu99 as the default is now gnu99.
MFC after:	2 weeks
2020-08-17 05:57:02 +00:00
Dimitry Andric
e81829d0e5 Merge ^/head r364264 through r364278. 2020-08-16 18:24:48 +00:00
Mariusz Zaborski
832dc76b63 libcasper: Introduce cap_net a network service for Casper.
Reviewed by:	emaste, markj (previous version), bcr (man page)
Differential Revision:	https://reviews.freebsd.org/D24688
2020-08-16 18:12:21 +00:00
Dimitry Andric
1106035d5b Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
release/11.x llvmorg-11.0.0-rc1-47-gff47911ddfc.
2020-08-15 12:29:55 +00:00
Dimitry Andric
de6fc2e39b Merge ^/head r364082 through r364250. 2020-08-15 11:49:31 +00:00
Kyle Evans
967fbfd9e2 Properly disable LUA_USE_DLOPEN for bootstrap flua
flua does have some specific bits that will include luaconf.h, but the
definition of LUA_USE_DLOPEN for those won't matter. This belongs in liblua
instead.

To expand on my previous commit, which was a little sparse with details,
it's not really safe to allow LUA_USE_DLOPEN with host lib paths being used.
The host system could have an entirely different lua version and this could
cause us to crash and burn.

If we want to revive this later, we need to make sure to define c module
paths inside OBJDIR that are compiled against whatever version we've
bootstrapped.

Pointy hat:	kevans
2020-08-14 02:40:17 +00:00
Kyle Evans
c2a2b4f3cf flua: don't allow dlopen, et al., for bootstrap flua
There are some logistics issues that need to be sorted out here before we
can actually allow this to work.
2020-08-14 02:22:19 +00:00
Bryan Drewery
2933cd3184 syslog(3): Send proper NILVALUE if gethostname(3) fails.
RFC5424 defines NILVALUE as '-'. Replace its usage with a macro and
separate out the fields to be more clear. fputs(3) is used in some
places to avoid hiding possible format string problems in a macro.

Reviewed by:	cem, vangyzen (earlier version)
Sponsored by:	Dell EMC
2020-08-14 00:18:18 +00:00
Ed Maste
3bd8419597 flua: support "require" for binary objects in the base system
Export symbols from flua, and enable dlopen.

Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D26059
2020-08-13 23:13:05 +00:00