fts: add fts_capsicum_test.c

Add three test cases verifying fts(3) Capsicum capability mode:

- fts_dirfd_valid: verifies fts_dirfd is set for all non-root
entries and openat(fts_dirfd, fts_name)

fts: add fts_capsicum_test.c

Add three test cases verifying fts(3) Capsicum capability mode:

- fts_dirfd_valid: verifies fts_dirfd is set for all non-root
entries and openat(fts_dirfd, fts_name) identifies the same
inode as fts_accpath
- fts_dirfd_capsicum: verifies complete fts traversal works in
Capsicum capability mode using fts_openat() and fts_dirfd
- fts_dirfd_deep_tree: verifies fts_dirfd + fts_name is correct
at all directory depths (7 non-root entries)

Sponsored by: Google LLC (GSoC 2026)
Reviewed by: asomers
Pull Request: https://github.com/freebsd/freebsd-src/pull/2332

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fts: add fts_openat() API

Add fts_openat() as a new entry point for fts(3).

When dirfd is AT_FDCWD the behaviour is identical to fts_open().
Passing a pre-opened directory fd allows fts traversal i

fts: add fts_openat() API

Add fts_openat() as a new entry point for fts(3).

When dirfd is AT_FDCWD the behaviour is identical to fts_open().
Passing a pre-opened directory fd allows fts traversal inside
Capsicum capability mode where path-based operations are not
permitted.

Capability mode users should use fts_parent->fts_dirfd + fts_name with
openat(2) to access files.

Reviewed by: asomers
Relnotes: yes
Sponsored by: Google LLC (GSoC 2026)
Pull Request: https://github.com/freebsd/freebsd-src/pull/2273

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libc: gen: add a test for rtld underflowing our posix_spawn thread

This is a distillation of the environment described in the PR, using
a dummy shlib and mapping it repeatedly. This takes advantage

libc: gen: add a test for rtld underflowing our posix_spawn thread

This is a distillation of the environment described in the PR, using
a dummy shlib and mapping it repeatedly. This takes advantage of the
guard page added in 2767a1f3686e5b16 to reliably crash if rtld tries to
scale its stack usage excessively with the # DSOs loaded.

PR: 295991
Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D57954

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powerpc64le: switch long double to IEEE binary128

Change powerpc64le's long double from 64-bit double to IEEE 754
binary128 (quad, 113-bit mantissa), matching aarch64 and riscv64.

Gated on FreeBSD

powerpc64le: switch long double to IEEE binary128

Change powerpc64le's long double from 64-bit double to IEEE 754
binary128 (quad, 113-bit mantissa), matching aarch64 and riscv64.

Gated on FreeBSD 16 and powerpc64le only.

Differential Revision: https://reviews.freebsd.org/D57388
Reviewed by: adrian
Relnotes: yes

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libc/tests: copy ieeefp tests out from contrib/netbsd-tests and rename them as FreeBSD test convention.

Reviewed by: imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/1656

fts: add fts regression tests

Add ATF regression tests for previously-fixed fts(3) bugs:

- PR 45723: directory with read but no execute is traversed via
FTS_DONTCHDIR fallback, not silently skipp

fts: add fts regression tests

Add ATF regression tests for previously-fixed fts(3) bugs:

- PR 45723: directory with read but no execute is traversed via
FTS_DONTCHDIR fallback, not silently skipped
(commit 1e03bff7f2b7)
- PR 196724: FTS_SLNONE must not be returned for a non-symlink;
time-bounded race test runs for 1 second with concurrent
file creation/deletion
(commit bf4374c54589)
- PR 262038: readdir(2) errors produce FTS_DNR with fts_errno
set, not silently treated as end-of-directory
(commit 0cff70ca6654)
- SVN r246641: normal traversal works correctly with O_DIRECTORY
fix in fts_safe_changedir()
(commit f9928f1705ee)
- SVN r261589: no crash when tree modified during traversal;
time-bounded race test runs for 1 second with concurrent
file creation/deletion
(commit c6d38f088e5c)

Sponsored by: Google LLC (GSoC 2026)
Reviewed by: asomers
MFC after: 2 weeks
Pull Request: https://github.com/freebsd/freebsd-src/pull/2257

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lib/libc/tests/gen: add fts_set() tests

Add ATF test cases for fts_set():

fts_set:
- invalid instruction returns non-zero with EINVAL
- FTS_AGAIN revisits the current node
- FTS_AGAIN consecutive v

lib/libc/tests/gen: add fts_set() tests

Add ATF test cases for fts_set():

fts_set:
- invalid instruction returns non-zero with EINVAL
- FTS_AGAIN revisits the current node
- FTS_AGAIN consecutive visits node three times
- FTS_FOLLOW on symlink to file yields FTS_F
- FTS_FOLLOW on symlink to directory causes descent
- FTS_FOLLOW on dead symlink yields FTS_SLNONE
- FTS_SKIP prevents descent into directory
- fts_set_clientptr/fts_get_clientptr round-trip
- fts_get_stream returns parent FTS* from FTSENT*

Sponsored by: Google LLC (GSoC 2026)
Reviewed by: asomers
MFC after: 2 weeks
Pull Request: https://github.com/freebsd/freebsd-src/pull/2242

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lib/libc/tests/gen: add fts_children() tests

Add ATF test cases covering fts_children() behaviour:

- before fts_read returns root entry list
- empty directory returns NULL with errno 0
- non-empty

lib/libc/tests/gen: add fts_children() tests

Add ATF test cases covering fts_children() behaviour:

- before fts_read returns root entry list
- empty directory returns NULL with errno 0
- non-empty directory returns all children in order
- called twice returns equivalent results
- FTS_NAMEONLY fills only fts_name, fts_info is FTS_NSOK
- non-directory node returns NULL with errno 0
- invalid options returns NULL with EINVAL

Sponsored by: Google LLC (GSoC 2026)
Reviewed by: asomers
MFC after: 1 week
Pull Request: https://github.com/freebsd/freebsd-src/pull/2218

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lib/libc/tests/gen: add fts_open() error and edge case tests

Add ATF test cases covering fts_open() error conditions and
edge cases:

- invalid option bits (outside FTS_OPTIONMASK) yield EINVAL
- em

lib/libc/tests/gen: add fts_open() error and edge case tests

Add ATF test cases covering fts_open() error conditions and
edge cases:

- invalid option bits (outside FTS_OPTIONMASK) yield EINVAL
- empty argv yields EINVAL
- empty path string yields FTS_NS with ENOENT
- nonexistent path yields FTS_NS, not open failure
- trailing slash does not crash (SVN r49851 regression)
- unreadable directory yields FTS_D then FTS_DNR, never FTS_DP
- multiple root paths are all visited left to right

Sponsored by: Google LLC (GSoC 2026)
Reviewed by: asomers
MFC after: 1 week
Pull Request: https://github.com/freebsd/freebsd-src/pull/2217

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libc/tests: add test for *_MAX, *_MIN, and *_WIDTH

This file checks the correctness of the various _MAX, _MIN, and
_WIDTH macros defined for the libc types. It assumes that none
of the types have p

libc/tests: add test for *_MAX, *_MIN, and *_WIDTH

This file checks the correctness of the various _MAX, _MIN, and
_WIDTH macros defined for the libc types. It assumes that none
of the types have padding bits.

Approved by: markj (mentor)
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D53831

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opendir, fdopendir: Add tests, clean up.

* Add test cases for opendir() and fdopendir().
* Drop O_NONBLOCK from opendir(); it was added a long time ago to avoid
blocking if given a closed named pi

opendir, fdopendir: Add tests, clean up.

* Add test cases for opendir() and fdopendir().
* Drop O_NONBLOCK from opendir(); it was added a long time ago to avoid
blocking if given a closed named pipe, but now we use O_DIRECTORY,
which ensures that we get ENOTDIR in that case.
* While here, remove unused #includes left over from the split.

Sponsored by: Klara, Inc.
Reviewed by: kevans, markj
Differential Revision: https://reviews.freebsd.org/D51126

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fts: Add test cases for unreadable directories.

Sponsored by: Klara, Inc.
Reviewed by: kevans
Differential Revision: https://reviews.freebsd.org/D51098

libc: Add fscandir(), fscandir_b(), scandirat_b().

While here, clean up scandir() a bit and improve the documentation.

MFC after: never
Sponsored by: Klara, Inc.
Reviewed by: markj
Differential Rev

libc: Add fscandir(), fscandir_b(), scandirat_b().

While here, clean up scandir() a bit and improve the documentation.

MFC after: never
Sponsored by: Klara, Inc.
Reviewed by: markj
Differential Revision: https://reviews.freebsd.org/D50935

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Add tests for sig2str() / str2sig()

Reviewed by: imp, kib, des, jilles
Pull Request: https://github.com/freebsd/freebsd-src/pull/1696

glob2_test: Add tests for error callback functions and blocks

This change adds tests that check basic callback functionality for
blocks and function pointers. The tests also make sure that GLOB_ERR

glob2_test: Add tests for error callback functions and blocks

This change adds tests that check basic callback functionality for
blocks and function pointers. The tests also make sure that GLOB_ERR
overrides the callback's return value.

Sponsored by: Klara, Inc.
Differential Revision: https://reviews.freebsd.org/D50486

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fts: Rename fts_options to fts_options_test

Sponsored by: Klara, Inc.

fts: Add tests for most FTS options.

Sponsored by: Klara, Inc.
Reviewed by: kevans, imp
Differential Revision: https://reviews.freebsd.org/D50234

bsd.compiler.mk: Add a blocks compiler feature.

Sponsored by: Klara, Inc.
Reviewed by: jrtc27
Differential Revision: https://reviews.freebsd.org/D49963

fts: Add blocks support.

This adds an `fts_open_b()` variant of `fts_open()` which takes a block
instead of a function pointer.

This was inspired by, and is intended to be compatible with, Apple's

fts: Add blocks support.

This adds an `fts_open_b()` variant of `fts_open()` which takes a block
instead of a function pointer.

This was inspired by, and is intended to be compatible with, Apple's
implementation; however, although our FTS and theirs share a common
ancestor, they have diverged significantly. That and the fact that
we still target compilers which don't support blocks means Apple's
implementation was not directly reusable.

This is the second use case for blocks in FreeBSD (the first being
`qsort_b()`, which we use here). This suggest we might want to add
a `COMPILER_FEATURE` for blocks to avoid hardcoding any further
`COMPILER_TYPE` checks.

MFC after: never
Relnotes: yes
Sponsored by: Klara, Inc.
Reviewed by: kevans, theraven, imp
Differential Revision: https://reviews.freebsd.org/D49877

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Remove residual blank line at start of Makefile

This is a residual of the $FreeBSD$ removal.

MFC After: 3 days (though I'll just run the command on the branches)
Sponsored by: Netflix

Remove $FreeBSD$: one-line sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

libc: tests: hook CPUSET(9) test up to the build

Add shims to map NetBSD's API to CPUSET(9). Obviously the invalid input
parts of these tests are relatively useless since we're just testing the
shim

libc: tests: hook CPUSET(9) test up to the build

Add shims to map NetBSD's API to CPUSET(9). Obviously the invalid input
parts of these tests are relatively useless since we're just testing the
shims that aren't used elsewhere, there's still some amount of value in
the parts testing valid inputs.

Differential Revision: https://reviews.freebsd.org/D27307

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Enable long double tests on RISC-V

Some of the NetBSD contributed tests are gated behind the
__HAVE_LONG_DOUBLE flag. This flag seems to be defined only for
platforms whose long double is larger tha

Enable long double tests on RISC-V

Some of the NetBSD contributed tests are gated behind the
__HAVE_LONG_DOUBLE flag. This flag seems to be defined only for
platforms whose long double is larger than their double. I could not
find this explicitly documented anywhere, but it is implied by the
definitions in NetBSD's sys/arch/${arch}/include/math.h headers, and the
following assertion from the UBSAN code:

#ifdef __HAVE_LONG_DOUBLE
long double LD;
ASSERT(sizeof(LD) > sizeof(uint64_t));
#endif

RISC-V has 128-bit long doubles, so enable the tests on this platform,
and update the comments to better explain the purpose of this flag.

Reviewed by: ngie
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D25419

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execvp: fix up the ENOEXEC fallback

If execve fails with ENOEXEC, execvp is expected to rebuild the command
with /bin/sh instead and try again.

The previous version did this, but overlooked two det

execvp: fix up the ENOEXEC fallback

If execve fails with ENOEXEC, execvp is expected to rebuild the command
with /bin/sh instead and try again.

The previous version did this, but overlooked two details:

argv[0] can conceivably be NULL, in which case memp would never get
terminated. We must allocate no less than three * sizeof(char *) so we can
properly terminate at all times. For the non-NULL argv standard case, we
count all the non-NULL elements and actually skip the first argument, so we
end up capturing the NULL terminator in our bcopy().

The second detail is that the spec is actually worded such that we should
have been preserving argv[0] as passed to execvp:

"[...] executed command shall be as if the process invoked the sh utility
using execl() as follows:

execl(<shell path>, arg0, file, arg1, ..., (char *)0);

where <shell path> is an unspecified pathname for the sh utility, file is
the process image file, and for execvp(), where arg0, arg1, and so on
correspond to the values passed to execvp() in argv[0], argv[1], and so on."

So we make this change at this time as well, while we're already touching
it. We decidedly can't preserve a NULL argv[0] as this would be incredibly,
incredibly fragile, so we retain our legacy behavior of using "sh" for
argv[] in this specific instance.

Some light tests are added to try and detect some components of handling the
ENOEXEC fallback; posix_spawnp_enoexec_fallback_null_argv0 is likely not
100% reliable, but it at least won't raise false-alarms and it did result in
useful failures with pre-change libc on my machine.

This is a secondary change in D25038.

Reported by: Andrew Gierth <andrew_tao173.riddles.org.uk>
Reviewed by: jilles, kib, Andrew Gierth
MFC after: 1 week

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Add sigsetop extensions commonly found in musl libc and glibc

These functions (sigandset, sigisemptyset, sigorset) are commonly available
in at least musl libc and glibc; sigorset, at least, has pro

Add sigsetop extensions commonly found in musl libc and glibc

These functions (sigandset, sigisemptyset, sigorset) are commonly available
in at least musl libc and glibc; sigorset, at least, has proven quite useful
in qemu-bsd-user work for tracking the current process signal mask in a more
self-documenting/aesthetically pleasing manner.

Reviewed by: bapt, jilles, pfg
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D22187

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