With all values identical it was possible for Var() to return a negative
value due to limited floating point precision, resulting in "nan"
reported as Stddev.
Variance cannot actually be negative, so just return 0. We can later
investigate alternate algorithms for calculating variance to reduce the
effect of catastrophic cancellation here.
Reported by: Arshan Khanifar <arshankhanifar_gmail.com>
Approved by: phk
Sponsored by: The FreeBSD Foundation
A subtle logic bug, probably introduced in r311895, caused tail to print the
first two lines of piped input in forward order, if the very first character
was a newline.
PR: 222671
Reported by: Jim Long <freebsd-bugzilla@umpquanet.com>, pprocacci@gmail.com
MFC after: 3 weeks
Sponsored by: Spectra Logic Corp
because the whole idea of this utility is rather broken.)
This originally come from NetBSD, and was later reworked a bit.
Reviewed by: des@ (earlier version)
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D4981
Summary:
r329077 caused gcc to emit uninitialized use warnings. Attempting to
fix those warnings yielded the following warnings:
usr.bin/tftp/main.c: In function 'main':
usr.bin/tftp/main.c:181: warning: variable 'el' might be clobbered by
'longjmp' or 'vfork'
usr.bin/tftp/main.c:182: warning: variable 'hist' might be clobbered by
'longjmp' or 'vfork'
This is a known bug in gcc, found at
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=24239
Work around that by simply marking hist and el as static.
Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D14302
Introduce WITH_/WITHOUT_LLVM_COV to match GCC's WITH_/WITHOUT_GCOV.
It is intended to provide a superset of the interface and functionality
of gcov.
It is enabled by default when building Clang, similarly to gcov and GCC.
This change moves one file in libllvm to be compiled unconditionally.
Previously it was included only when WITH_CLANG_EXTRAS was set, but the
complexity of a new special case for (CLANG_EXTRAS | LLVM_COV) is not
worth avoiding a tiny increase in build time.
Reviewed by: dim, imp
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D142645
This bug was first reported 14 years ago. The problem was understood 8.5
years ago. A patch that is functionally identical to this one was proposed
almost 8 years ago and languished in the PR system / Bugzilla.
PR: 63197
Submitted by: lxv AT omut.org, fernando.apesteguia AT gmail.com
Reported by: freebsd AT nbritton.org
If the interrupt count is very high (greater than ~42M), notably on one-shot
execution on long running systems, the intermediate multiplication step in the
rate calculation will overflow the width of a 32-bit architecture long (32
bits), causing the rest of the calculation to calculate with a truncated value,
and report very low rates (sometimes 0).
MFC after: 2 weeks
When building FreeBSD the makefiles invoke find with various flags such as
`-s` that aren't supported in the native /usr/bin/find. To fix this I
build the FreeBSD version of find and use that when crossbuilding.
Inserting lots if #ifdefs in the code is rather ugly but I don't see a
better solution.
Reviewed By: brooks (mentor)
Approved By: jhb (mentor)
Differential Revision: https://reviews.freebsd.org/D13306
Add libxo output support
Merge exp41_intpr and exp_intpr function. The only difference is to print
NFSV4.1 operations in exp41, add a third arguement to control that.
printtitle was set to 1 and don't have a switch, add a -q options to control it.
Reviewed by: bapt
Sponsored by: Gandi.net
Differential Revision: https://reviews.freebsd.org/D14012
Tests were disconnected so that running `make check` in usr.bin/awk did not
have any effect, but CI runs use installed tests. Fully disconnect tests/
from the build for the time being as a short term solutio
Reported by: lwhsu
This is a prerequisite to adding support for the monotonic clock
Reviewed by: ken, imp
MFC after: 3 weeks
Sponsored by: Spectra Logic Corp
Differential Revision: https://reviews.freebsd.org/D14030
Restore the original character to print if we used the look-ahead
buffer, but that didn't help -- we either got an illegal sequence
or still can't complete.
PR: 224552
Submitted by: Yuri Pankov
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D13963
Highlights of this update:
- /__local_fixups__ is now generated to be GPL dtc and libfdt compliant
- Compiling with -@ will now cause dtc to assign phandles to all labelled
nodes
- /include/ and /incbin/ now handle absolute paths correctly
- The manpage now has information about overlays, including how to apply
them and how to generate them
- Syntactic sugar for overlays is now supported, allowing an overlay DTS
like:
=
/dts-v1/;
/plugin/;
&foo {
foo,status = "okay";
};
=
to generate a fragment targetting <&foo>.
- The process stats are actually thread counts rather than process
counts.
- Simplify various descriptions to remove mention of stats that are
updated every 5 seconds (all VM related stats are now "instant",
only the load average is updated every 5 seconds).
- Don't make any mention of special treatment for processes that have
been active in the last 20 seconds. We don't track that stat.
- Rework the description of active virtual memory. Call it mapped
virtual memory and explicitly point out it is not the same as the
active page queue (which corresponds to "Active" in top(1)), and
also hint at the possible bogusness of the value (e.g. if a process
maps a single page out of a multiple GB file, the entire file's size
is considered mapped).
- Simplify a few descriptions that implied their output was a value
per interval. All of the "rate" values are per-second rates scaled
across the interval.
- Update a few comments for 'struct vmtotal' along similar lines.
Reported by: mwlucas (indirectly)
Reviewed by: kib
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D13905
I need these tools in order to install the crossbuilt FreeBSD and create a
disk image. Linux does not have a st_flags in struct stat so unfortunately
I need a bunch of ugly ifdefs. The resulting binaries allow me to
sucessfully install a MIPS64 world and create a disk-image that boots.
Reviewed By: brooks, bdrewery, emaste
Approved By: jhb (mentor)
Differential Revision: https://reviews.freebsd.org/D13307
6.0.0 (branches/release_60 r321788). Upstream has branched for the
6.0.0 release, which should be in about 6 weeks. Please report bugs and
regressions, so we can get them into the release.
Please note that from 3.5.0 onwards, clang, llvm and lldb require C++11
support to build; see UPDATING for more information.
MFC after: 3 months
