add new test

tests/gcov: demonstrate wrong coverage report after vfork/exec

Discovered in usr.bin/make, function Cmd_Exec.

The coverage test I ran on 2024-07-13 was still good. I don't remember
the exact versio

tests/gcov: demonstrate wrong coverage report after vfork/exec

Discovered in usr.bin/make, function Cmd_Exec.

The coverage test I ran on 2024-07-13 was still good. I don't remember
the exact version of NetBSD-current I was running back then.

With NetBSD-current from 2025-01-17, gcov does not report full coverage
data after a vfork/exec call. Running the test program inside ktrace
shows that after a vfork call, the child process writes its coverage data
back, probably right before the exec call, but the parent process
doesn't.

Running a child process through system(3) is not affected; there,
posix_spawn is used instead of vfork/exec.

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tests/make: test expressions based on undefined variables

When an undefined variable is used in a conditional, make complains about
"Malformed conditional", which is wrong since the conditional is
w

tests/make: test expressions based on undefined variables

When an undefined variable is used in a conditional, make complains about
"Malformed conditional", which is wrong since the conditional is
well-formed but errors out during evaluation.

In order to fix this wrong error message and preserve the remaining
behavior, cover the places in which an expression is evaluated with
undefined expressions being an error (VARE_EVAL_DEFINED), but with
neither producing an error message nor handling errors. This combination
results in the same behavior as evaluating the expressions in the mode
that allows undefined variables to be used in expressions.

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Fix build after recent regex tests addition (make it be an addition, and
don't forget tests/libtre)

new regex test.

distrib/sets/lists/tests/mi: Copied & pasted wrong line, oops.

This shiny new test is definitely not obsolete!

Should fix:

atf-run: ERROR: Cannot locate the t_time_arith file

PR kern/58922: itime

distrib/sets/lists/tests/mi: Copied & pasted wrong line, oops.

This shiny new test is definitely not obsolete!

Should fix:

atf-run: ERROR: Cannot locate the t_time_arith file

PR kern/58922: itimer(9): arithmetic overflow
PR kern/58925: itimer(9) responds erratically to clock wound back
PR kern/58926: itimer(9) integer overflow in overrun counting
PR kern/58927: itimer(9): overrun accounting is broken

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t_time_arith: New test for timer calculations.

This will facilitate fixing various problems in the arithmetic to
determine, given an itimer's scheduled time (it_value) and periodic
interval (it_inte

t_time_arith: New test for timer calculations.

This will facilitate fixing various problems in the arithmetic to
determine, given an itimer's scheduled time (it_value) and periodic
interval (it_interval) along with the current time of actual expiry
(now), what time the itimer should be rescheduled for (next, new
value of it_timer) on the same clock.

Later we can also put tests for other functions like tvtohz here, and
make them test many different values of hz/tick.

XXX Not 100% sure about all of these cases -- there is some room for
reasonable discussion about what the right answer is. But we have
unquestionably implemented the wrong thing for many of these cases,
even if the answers this test checks for may not be quite right yet.

PR kern/58922: itimer(9): arithmetic overflow
PR kern/58925: itimer(9) responds erratically to clock wound back
PR kern/58926: itimer(9) integer overflow in overrun counting
PR kern/58927: itimer(9): overrun accounting is broken

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tests/usr.bin/cc: Add test for ctype(3) detection.

PR lib/58912: ctype(3) abuse detection fails for variable references

add a PT_KILL test.

lint: warn about do-while macros that end with a semicolon

lint: warn about function definitions that still use identifier lists

lint: use separate message when discarding a qualifier in call

tests/kernel/t_cloexec: New tests for close-on-exec.

Verified that the following tests fail on a netbsd-10 kernel:

- clonedev_posixspawn
- dup3_posixspawn
- fcntldupfd_posixspawn

PR kern/58822: cl

tests/kernel/t_cloexec: New tests for close-on-exec.

Verified that the following tests fail on a netbsd-10 kernel:

- clonedev_posixspawn
- dup3_posixspawn
- fcntldupfd_posixspawn

PR kern/58822: close-on-exec is broken for dup3 and opening cloning
devices

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Hook zstd to the build and enable it for libarchive and file.

add makefs test

more libarchive tests

ftp(1): Add test for custom HTTP header fields.

Based on a patch from Sunil Nimmagadda <sunil@nimmagadda.net>.

PR bin/58581: ftp(1) should allow specifying header fields in http
requests

Add a test for clock_nanotime() [ PR kern/58733 ]

Add a t_nanosleep test to the kernel tests, to (to a limited extent)
validate its functionality.

Initially this concentrates on the issue from PR k

Add a test for clock_nanotime() [ PR kern/58733 ]

Add a t_nanosleep test to the kernel tests, to (to a limited extent)
validate its functionality.

Initially this concentrates on the issue from PR kern/58733
where if a process paused in nanosleep() is stopped, and then
continued, and if it is using TIMER_ABSTIME, the call will
return prematurely, but indicating success.

There are (currently) 4 test cases, to test all 4 possibilities
using CLOCK_MONOTONIC and CLOCK_REALTIME (if someone wants to
add any other clocks that make sense, that should be easy) and
TIMER_ABSTIME and TIMER_RELTIME.

Currently both TIMER_ABSTIME tests fail (the TIMER_RELTIME
tests pass). When the kernel bug is fixed, the ABSTIME
tests should be fixed along with it.

These tests are currently somewhat crude, and I'm not sure
how well they will work on a qemu test system (they work as
expected on bare metal).

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new semtimedop(2) GSoC 2024 (Shivraj Jamgade)

tests: Add test for remquo

This test currently fails, because remquo has bugs. (A bugfix will be
committed soon.) Test vectors derived from results from code by
Charles Karney in GeodesicLib/proj,

tests: Add test for remquo

This test currently fails, because remquo has bugs. (A bugfix will be
committed soon.) Test vectors derived from results from code by
Charles Karney in GeodesicLib/proj, and manually inspected.

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Mark new if_bridge test files as conditional on RUMP

math.h: Add math_errhandling, MATH_ERRNO, MATH_ERREXCEPT.

XXX Should maybe put a __math_errhandling in machine/math.h, but only
VAX uses MATH_ERRNO and that's not likely to change any time soon, so

math.h: Add math_errhandling, MATH_ERRNO, MATH_ERREXCEPT.

XXX Should maybe put a __math_errhandling in machine/math.h, but only
VAX uses MATH_ERRNO and that's not likely to change any time soon, so
this will serve for now with less churn.

PR standards/56234: missing C99 frobs in <math.h>

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distrib: install uuencoded pcap files for testing

distrib, etc: install shmif_pcapin and its tests

arc4random(3): Add automatic tests.

This verifies that:
- arc4random zeroes its state and reseeds itself on fork
- arc4random reseeds itself on entropy consolidation (e.g., VM clone)
- arc4random fa

arc4random(3): Add automatic tests.

This verifies that:
- arc4random zeroes its state and reseeds itself on fork
- arc4random reseeds itself on entropy consolidation (e.g., VM clone)
- arc4random falls back to global state if it can't allocate local
state because address space limits cause mmap to fail

NOTE: This adds a new libc symbol __arc4random_global, but it's in
the reserved namespace and only used by t_arc4random, so no libc
minor bump.

PR kern/58632: getentropy(2) and arc4random(3) do not reseed on VM
fork

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