The restriction here is pretty late and pretty minimal. We need a lot
of authority to open password databases, and don't do much after that
point.
Feedback from: lifanov at mail.lifanov.com (earlier version), emaste (earlier version)
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D7988
Needed for 'readelf -l' of extended phnum files. (Parity with GNU
binutils.)
Reviewed by: no one, unfortunately
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D8703
Extended numbering is used for any of these fields overflowing.
Reviewed by: emaste@
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D8701
Initialize l_sec_contents to make sure that free(l_sec_contents) is called
on valid pointers.
Obtained from: OpenBSD (partial CVS rev 1.18)
MFC after: 5 days
executing :mincore_resid
The default process limits in FreeBSD is 64kB for unprivileged users,
which empirically is too low to run the :mincore_resid testcase.
Process limits are inherited, so even though the default limit for
root users is RLIM_INFINITY, the inherited limit with "sudo" with the
default login.conf will be 64kB.
Use setrlimit to set rlim_max for RLIMIT_MEMLOCK to RLIM_INFINITY to
avoid ENOMEM issues when calling mlock to wire the mmap'ed address
space.
setrlimit requires root access to increase rlim_max, so require root
privileges when running the test
Discovered when executing the tests with sudo, e.g.
"sudo kyua test -k /usr/tests/lib/libc/sys/Kyuafile mincore_test"
MFC after: 2 weeks
- Duplicate test_unmount to _test_unmount
- Remove atf_check calls
- Call _test_unmount from test_unmount, checking the exit code
at the end, and returning it to maintain the test_unmount
"contract"
MFC after: 1 week
Add some shortcuts in LazyValueInfo to reduce compile time of
Correlated Value Propagation.
The patch is to partially fix PR10584. Correlated Value Propagation
queries LVI to check non-null for pointer params of each callsite. If
we know the def of param is an alloca instruction, we know it is
non-null and can return early from LVI. Similarly, CVP queries LVI to
check whether pointer for each mem access is constant. If the def of
the pointer is an alloca instruction, we know it is not a constant
pointer. These shortcuts can reduce the cost of CVP significantly.
Differential Revision: https://reviews.llvm.org/D18066
This significantly reduces memory usage and compilation time when
compiling a particular C++ source file of the graphics/colmap port.
PR: 215136
MFC after: 3 days
Include the SHN_UNDEF (zero) index special section in extended-attribute
ELF files, like GNU binutils' readelf.
Additionally, print "<no-name>" for sections without names, like GNU
binutils.
Reviewed by: kaiw@
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D8707
of memory allocation failures combined with insufficient error checking
could result in the construction and execution of an argument sequence that
was not intended.
Fix that treating malloc(3) failures as fatal condition.
Submitted by: brooks
Security: FreeBSD-SA-16:36.telnetd
The mbtoc(3) and wctomb(3) functions use internal state which may be
tainted before the call to strvis(3). In this context we can just use
the thread-safe versions mbrtoc(3) and wcrtomb(3) which allow passing
our own state from our stack.
MFC after: 2 weeks
Sponsored by: Dell EMC Isilon
Sync libarchive with vendor.
Vendor bugfixes:
libarchive #831:
Spelling fixes
libarchive #832:
Relax sanity checks of number fields in tar header even more
OSS-Fuzz #16:
Fix possible hang in uudecode_filter_read()
OSS-Fuzz #220:
Reject an 'ar' filename table larger than 1GB or a filename larger
than 1MB.
MFC after: 1 week
This fixes reading tar archives created by older versions of
plexus-archiver (used by maven-assembly-plugin) that fill uid and gid
fields with spaces (PLXCOMP-233).
Vendor issue:
https://github.com/libarchive/libarchive/issues/832
Reported by: Antoine Brodin <antoine@freebsd.org>
MFC after: 1 week
The copy of contrib/libc-vis on ^/stable/10 doesn't contain all of the features
in the ^/stable/11 // ^/head version, including VIS_NOLOCALE. The risk is lower
in conditionally running the test instead of backporting the newer version of
libc-vis
MFC after: now
factor lives in /usr/games/, not /usr/bin, in NetBSD.
The correct way to handle this is do on-the-fly manipulation of the test
script via ATF_TESTS_SH_SED_<foo>, not by modify the pathing directly in
the test script.
This is being done to resolve an unnecessary conflict made when pulling
back ^/head@r309469 (contrib/netbsd-tests update) to ^/stable/10.
No functional change
MFC after: now
Sync libarchive with vendor.
Vendor bugfixes:
Fix for heap-buffer-overflow in archive_le16dec()
Fix for heap-buffer-overflow in uudecode_bidder_bid()
Reworked fix for compatibility with archives created by Perl Archive::Tar
MFC after: 1 week
This uses the same fix as r294894 did for the mlock test. The code from
that commit is moved into a common object file which PROGS supports
building first.
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D8689
Sync libarchive with vendor.
Small improvements, style fixes, bugfixes.
Restores compatibility with tar archives created with Perl Archive::Tar (1)
MFC after: 1 week
Reported by: Matthew Seaman <matthew@freebsd.org> (1)
This includes a security fix for a component that we do not build, and
two potentially useful client side fixes for reintegrate merges and tree
conflict handling. See CHANGES for full details.
Sync libarchive with vendor.
Important vendor bugfixes (relevant to FreeBSD):
#821: tar -P cannot extract hardlinks through symlinks
#825: Add sanity check of tar "uid, "gid" and "mtime" fields
PR: 213255
Reported by: Tijl Coosemans <tilj@FreeBSD.org>
MFC after: 1 week
Important vendor bugfixes (relevant to FreeBSD):
#821: tar -P cannot extract hardlinks through symlinks
#825: Add sanity check of tar "uid, "gid" and "mtime" fields
[PowerPC] Refactor soft-float support, and enable PPC64 soft float
This change enables soft-float for PowerPC64, and also makes
soft-float disable all vector instruction sets for both 32-bit and
64-bit modes. This latter part is necessary because the PPC backend
canonicalizes many Altivec vector types to floating-point types, and
so soft-float breaks scalarization support for many operations. Both
for embedded targets and for operating-system kernels desiring
soft-float support, it seems reasonable that disabling hardware
floating-point also disables vector instructions (embedded targets
without hardware floating point support are unlikely to have Altivec,
etc. and operating system kernels desiring not to use floating-point
registers to lower syscall cost are unlikely to want to use vector
registers either). If someone needs this to work, we'll need to
change the fact that we promote many Altivec operations to act on
v4f32. To make it possible to disable Altivec when soft-float is
enabled, hardware floating-point support needs to be expressed as a
positive feature, like the others, and not a negative feature,
because target features cannot have dependencies on the disabling of
some other feature. So +soft-float has now become -hard-float.
Fixes PR26970.
Pull in r283061 from upstream clang trunk (by Hal Finkel):
[PowerPC] Enable soft-float for PPC64, and +soft-float -> -hard-float
Enable soft-float support on PPC64, as the backend now supports it.
Also, the backend now uses -hard-float instead of +soft-float, so set
the target features accordingly.
Fixes PR26970.
Reported by: Mark Millard
PR: 214433
[PPC] Set SP after loading data from stack frame, if no red zone is
present
Follow-up to r280705: Make sure that the SP is only restored after
all data is loaded from the stack frame, if there is no red zone.
This completes the fix for
https://llvm.org/bugs/show_bug.cgi?id=26519.
Differential Revision: https://reviews.llvm.org/D24466
Reported by: Mark Millard
PR: 214433
Call Frame Optimization on i386 and libunwind, by disallowing the
optimization for i386-freebsd12.
This should fix some instances of broken exception handling when frame
pointers are omitted, in particular some unittests run during the build
of editors/libreoffice.
This hack will be removed as soon as upstream has implemented a more
permanent fix for this problem.
Upstream PR: https://llvm.org/bugs/show_bug.cgi?id=30879
Reviewed by: emaste
PR: 212343
VSS stands for "Volume Shadow Copy Service". Unlike virtual machine
snapshot, it only takes snapshot for the virtual disks, so both
filesystem and applications have to aware of it, and cooperate the
whole VSS process.
This driver exposes two device files to the userland:
/dev/hv_fsvss_dev
Normally userland programs should _not_ mess with this device file.
It is currently used by the hv_vss_daemon(8), which freezes and
thaws the filesystem. NOTE: currently only UFS is supported, if
the system mounts _any_ other filesystems, the hv_vss_daemon(8)
will veto the VSS process.
If hv_vss_daemon(8) was disabled, then this device file must be
opened, and proper ioctls must be issued to keep the VSS working.
/dev/hv_appvss_dev
Userland application can opened this device file to receive the
VSS freeze notification, hold the VSS for a while (mainly to flush
application data to filesystem), release the VSS process, and
receive the VSS thaw notification i.e. applications can run again.
The VSS will still work, even if this device file is not opened.
However, only filesystem consistency is promised, if this device
file is not opened or is not operated properly.
hv_vss_daemon(8) is started by devd(8) by default. It can be disabled
by editting /etc/devd/hyperv.conf.
Submitted by: Hongjiang Zhang <honzhan microsoft com>
Reviewed by: kib, mckusick
MFC after: 3 weeks
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D8224
AArch64: only try to use scaled fcvt ops on legal vector types.
Before we ended up calling getSimpleVectorType on a <3 x float>, which
asserted.
This fixes an assertion when building the print/ghostscript9-agpl-base
port for AArch64.
PR: 213865
MFC after: 3 days
Used extensively on my network over the past month.
Reviewed by: pfg, brooks
Suggested by: pfg
Obtained from: ftp://ftp.am-utils.org/pub/am-utils/
MFC after: 6 weeks
Relnotes: yes
Differential Revision: D8405
[AArch64] Don't blindly lower f16/f128 FCCMPs.
Instead, extend f16 (like we do when lowering a standalone SETCC),
and let f128 be legalized to the RT calls.
Fixes PR26803.
This fixes a fatal "Cannot select" backend error when building the
net/freerdp port for AArch64.
PR: 214380
MFC after: 3 days
