src/lib/libc/tests/stdlib/Makefile, branch main

libc: Add strfromd, strfromf, and strfroml per C23

2026-08-02T12:10:02Z

strfromd(), strfromf(), and strfroml() are implemented directly in terms of gdtoa. If a non-conforming format string is passed, the string "EDOOFUS" is returned and errno set to EDOOFUS as an extension. Reviewed by: fuz MFC after: 1 month Pull-Request: https://github.com/freebsd/freebsd-src/pull/2301 Signed-off-by: Faraz Vahedi

powerpc64le: switch long double to IEEE binary128

2026-06-19T21:25:39Z

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

system(3): Write our own tests

2026-02-25T21:12:29Z

Replace the somewhat perfunctory NetBSD tests with our own. MFC after: 1 week Sponsored by: Klara, Inc. Reviewed by: bnovkov, kevans Differential Revision: https://reviews.freebsd.org/D55482

libc: Drop incorrect qsort optimization

2025-08-15T07:23:03Z

As pointed out in the PR and the article linked below, the switch to insertion sort in the BSD qsort code is based on a misunderstanding of Knuth's TAOCP and is actually a pessimization. As demonstrated by the added test, it is trivially easy to construct pathological input which results in quadratic runtime. Without that misguided optimization, the same input runs in nearly linearithmic time. https://www.raygard.net/2022/02/26/Re-engineering-a-qsort-part-3 PR: 287089 MFC after: 1 week Reviewed by: imp Differential Revision: https://reviews.freebsd.org/D51907

libc: Add getenv_r() function.

2025-04-27T06:29:32Z

This is a calque of the NetBSD function of the same name. MFC after: never Relontes: yes Sponsored by: Klara, Inc. Reviewed by: kevans Differential Revision: https://reviews.freebsd.org/D49979

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

2025-04-22T17:44:58Z

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

fts: Add blocks support.

2025-04-22T17:25:56Z

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

src: Use gnu++17 as the default C++ standard

2025-04-11T13:53:50Z

Previously the compiler's default C++ standard was used unlike C where bsd.sys.mk explicitly sets a default language version. Setting an explicit default version will give a more uniform experience across different compilers and compiler versions. gnu++17 was chosen to match the default C standard. It is well supported by a wide range of clang (5+) and GCC (9+) versions. gnu++17 is also the default C++ standard in recent versions of clang (16+) and GCC (11+). As a result, many of the explicit CXXSTD settings in Makefiles had the effect of lowering the C++ standard instead of raising it as was originally intended and are removed. Note that the remaining explicit CXXSTD settings for atf and liblutok explicitly lower the standard to C++11 due to use of the deprecated auto_ptr<> template which is removed in later versions. Reviewed by: imp, asomers, dim, emaste Differential Revision: https://reviews.freebsd.org/D49223

libc: tests: add some tests for __cxa_atexit handling

2025-04-05T00:47:54Z

This adds a basic test that __cxa_atexit works, and also adds some tests for __cxa_atexit handlers registered in the middle of __cxa_finalize. PR: 285870

libc tests: Add some test cases for recursive exiting

2024-08-07T16:06:11Z

Derived from tests posted by kib in D46108. I made one of them use a pthread barrier instead of sleeping. Reviewed by: kib MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D46176