Volodymyr Turanskyy a6643f27ec [libc++] Add support for picolibc and newlib in RUNTIMES_USE_LIBC (#147956) ...

This replaces detection of picolibc in libc++ (by checking for and
including picolibc.h) with using RUNTIMES_USE_LIBC build time option
intriduced in https://github.com/llvm/llvm-project/pull/134893
RUNTIMES_USE_LIBC is extended to accept picolibc and newlib.

Detection of picolibc via the header is kept as a deprecated feature to
avoid breaking builds.

libc++ is updated to use dedicated LIBCXX_LIBC_NEWLIB macro to check for
newlib specific conditions instead of less informative _NEWLIB_VERSION

---------

Co-authored-by: Louis Dionne <ldionne.2@gmail.com>

2025-11-28 11:50:06 +00:00

..

__algorithm

[libcxx] Unwrap iterators in __find_segment (#161274)

2025-11-28 10:13:21 +01:00

__atomic

[libc++][atomic] P2835R7: Expose std::atomic_ref's object address (#162236)

2025-10-13 20:27:02 +08:00

__bit

[libc++] Optimize std::has_single_bit (#133063)

2025-11-21 13:59:38 +01:00

__charconv

[libc++] Remove is_signed<T> use from <limits> (#168334)

2025-11-19 18:50:27 +01:00

__chrono

[libcxx] Implement C++20 std::chrono::is_clock, std::chrono::is_clock_v (#160607)

2025-11-06 12:33:44 -08:00

__compare

[libc++] Applied [[nodiscard]] to Language Support (partially) (#169611)

2025-11-26 22:17:38 +02:00

__concepts

[libc++][NFC] Merge add_{r,l}value_reference.h (#147022)

2025-07-05 18:11:36 +02:00

__condition_variable

[libc++] Applied [[nodiscard]] to concurrency (partially) (#169463)

2025-11-27 00:04:27 +02:00

__configuration

[libc++] Add support for picolibc and newlib in RUNTIMES_USE_LIBC (#147956)

2025-11-28 11:50:06 +00:00

__coroutine

[libc++] Applied [[nodiscard]] to Language Support (partially) (#169611)

2025-11-26 22:17:38 +02:00

__cstddef

…

__cxx03

[libc++] Add support for picolibc and newlib in RUNTIMES_USE_LIBC (#147956)

2025-11-28 11:50:06 +00:00

__debug_utils

[libc++] Make the naming of the iterator_traits aliases consistent (#161661)

2025-10-07 14:42:11 +02:00

__exception

[libc++] Remove __is_replaceable emulation (#167355)

2025-11-11 07:53:56 -05:00

__expected

[libc++] Remove __is_replaceable emulation (#167355)

2025-11-11 07:53:56 -05:00

__filesystem

[libc++] proper guarding for locale usage in filesystem on Windows (#165470)

2025-11-14 09:25:56 +00:00

__flat_map

[libc++][flat_map] Applied [[nodiscard]] (#169453)

2025-11-26 22:16:41 +02:00

__flat_set

[libc++][flat_set] Applied [[nodiscard]] (#169739)

2025-11-27 20:29:39 +08:00

__format

[libc++] Simplify the implementation of __formatter::__fill a bit (#147777)

2025-11-03 10:41:55 +01:00

__functional

[libc++][NFC] Simplify SFINAE detections in weak_result_type.h (#169870)

2025-11-28 18:55:13 +08:00

__fwd

[libc++] Add support for picolibc and newlib in RUNTIMES_USE_LIBC (#147956)

2025-11-28 11:50:06 +00:00

__ios

…

__iterator

[libc++] Implement P2988R12: std::optional<T&> (#155202)

2025-11-12 11:00:08 +08:00

__locale_dir

[libc++] Add support for picolibc and newlib in RUNTIMES_USE_LIBC (#147956)

2025-11-28 11:50:06 +00:00

__math

[libc++] Fix LLVM 22 TODOs (#153367)

2025-10-30 10:34:41 +01:00

__mdspan

[libc++][mdspan] Applied [[nodiscard]] (#169326)

2025-11-27 09:56:38 +08:00

__memory

[libc++][NFC] Move __memory/aligned_alloc.h into src/ (#166172)

2025-11-24 22:36:13 +01:00

__memory_resource

[libc++] Remove a few incorrect _LIBCPP_EXPORTED_FROM_ABI annotations (#132602)

2025-08-26 08:04:28 +02:00

__mutex

[libc++] Applied [[nodiscard]] to concurrency (partially) (#169463)

2025-11-27 00:04:27 +02:00

__new

[libcxx][modules] Fix missing includes for windows (#158781)

2025-11-03 13:49:31 +11:00

__numeric

[libc++][numeric] Marked saturation artithmetic functions as [[nodiscard]] (#166898)

2025-11-09 05:39:36 +02:00

__ostream

[libc++] Granularize <locale> (#146650)

2025-07-05 18:11:58 +02:00

__pstl

[libc++] Make the naming of the iterator_traits aliases consistent (#161661)

2025-10-07 14:42:11 +02:00

__random

[libc++] Always define _LIBCPP_GLIBC_PREREQ (#169405)

2025-11-25 12:51:23 +01:00

__ranges

[libc++] Make views::iota aware of __int128 (#167869)

2025-11-19 15:19:54 +01:00

__stop_token

[libc++] Remove availability annotations that aren't required anymore (#161640)

2025-10-09 08:46:02 +02:00

__string

[libc++] Fold __search_substring into _Traits::find in case the second string has length 1 (#160076)

2025-09-25 09:29:01 +02:00

__support

[libc++] Optimize num_get integral functions (#121795)

2025-11-24 16:53:58 +01:00

__system_error

[libc++] Remove a few incorrect _LIBCPP_EXPORTED_FROM_ABI annotations (#132602)

2025-08-26 08:04:28 +02:00

__thread

[libc++] Applied [[nodiscard]] to concurrency (partially) (#169463)

2025-11-27 00:04:27 +02:00

__tuple

[libc++] Replace the last uses of __tuple_types with __type_list (#167214)

2025-11-10 10:09:14 +01:00

__type_traits

[libc++] Merge is_{,un}bounded_array.h into is_array.h (#167479)

2025-11-13 09:29:28 +01:00

__utility

[libc++] Applied [[nodiscard]] to Language Support (partially) (#169611)

2025-11-26 22:17:38 +02:00

__variant

…

__vector

[libc++] Merge the implementations of ranges::copy_n and std::copy_n and fix vector::insert to assign (#157444)

2025-11-27 15:50:50 +01:00

experimental

[libc++] Granularize <locale> (#146650)

2025-07-05 18:11:58 +02:00

ext

[libc++] Fix __gnu_cxx::hash_multiset copy construction (#160466)

2025-09-24 15:49:55 +02:00

__assert

[libc++][hardening] Add a greppable prefix to assertion messages. (#150560)

2025-07-31 02:52:17 -07:00

__bit_reference

[libc++] Introduce __specialized_algorithms (#167295)

2025-11-25 13:46:19 +01:00

__config

[libc++] Always define _LIBCPP_GLIBC_PREREQ (#169405)

2025-11-25 12:51:23 +01:00

__config_site.in

[libc++] Add support for picolibc and newlib in RUNTIMES_USE_LIBC (#147956)

2025-11-28 11:50:06 +00:00

__hash_table

[libc++] Fix __hash_table::erase(iterator, iterator) to update the bucket list correctly when erasing the last bucket (#167865)

2025-11-17 17:31:55 +01:00

__locale

[libc++] Add support for picolibc and newlib in RUNTIMES_USE_LIBC (#147956)

2025-11-28 11:50:06 +00:00

__log_hardening_failure

[libc++][hardening] Add an experimental function to log hardening errors (#149452)

2025-07-24 13:39:48 -04:00

__mbstate_t.h

…

__node_handle

[libc++][NFC] Remove special handling for __hash_value_type in <__node_handle> (#147271)

2025-07-10 09:21:46 +02:00

__split_buffer

[libc++] Remove __is_replaceable emulation (#167355)

2025-11-11 07:53:56 -05:00

__std_mbstate_t.h

…

__tree

[libc++] Optimize __tree copy/move constructor/assignment with allocator (#163558)

2025-11-12 15:53:37 +01:00

__undef_macros

…

__verbose_abort

…

__verbose_trap

[libc++] Introduce the _LIBCPP_VERBOSE_TRAP macro (#148262)

2025-07-14 09:56:19 -04:00

algorithm

…

any

[libc++][any] Applied [[nodiscard]] (#168826)

2025-11-22 15:03:46 +02:00

array

[libc++][array] Applied [[nodiscard]] (#168829)

2025-11-24 12:32:29 +02:00

atomic

…

barrier

[libc++] Applied [[nodiscard]] to concurrency (partially) (#169463)

2025-11-27 00:04:27 +02:00

bit

…

bitset

[libc++] Use _BitInt and __builtin_popcountg in bitset::count() (#160679)

2025-09-25 20:16:27 +02:00

cassert

…

ccomplex

[libc++] Fix header deprecations (#163356)

2025-11-18 16:05:53 +01:00

cctype

…

cerrno

…

cfenv

…

cfloat

…

charconv

…

chrono

[libcxx] Implement C++20 std::chrono::is_clock, std::chrono::is_clock_v (#160607)

2025-11-06 12:33:44 -08:00

cinttypes

…

ciso646

[libc++] Fix header deprecations (#163356)

2025-11-18 16:05:53 +01:00

climits

…

clocale

…

CMakeLists.txt

[libc++] Introduce __specialized_algorithms (#167295)

2025-11-25 13:46:19 +01:00

cmath

…

codecvt

…

compare

…

complex

…

complex.h

[libc++][C++03] Remove some of the C++03-specific C wrapper headers (#163772)

2025-10-24 10:08:21 +02:00

concepts

…

condition_variable

[libc++] Remove availability annotations that aren't required anymore (#161640)

2025-10-09 08:46:02 +02:00

coroutine

…

csetjmp

…

csignal

…

cstdalign

[libc++] Fix header deprecations (#163356)

2025-11-18 16:05:53 +01:00

cstdarg

…

cstdbool

[libc++] Fix header deprecations (#163356)

2025-11-18 16:05:53 +01:00

cstddef

…

cstdint

…

cstdio

…

cstdlib

…

cstring

…

ctgmath

[libc++] Fix header deprecations (#163356)

2025-11-18 16:05:53 +01:00

ctime

…

ctype.h

[libc++][C++03] Remove some of the C++03-specific C wrapper headers (#163772)

2025-10-24 10:08:21 +02:00

cuchar

…

cwchar

…

cwctype

…

deque

[libc++][deque] Applied [[nodiscard]] (#169745)

2025-11-27 19:53:34 +08:00

errno.h

[libc++][C++03] Remove some of the C++03-specific C wrapper headers (#163772)

2025-10-24 10:08:21 +02:00

exception

[libc++] Remove <cstdlib> include from <exception> (#166340)

2025-11-05 09:42:35 +01:00

execution

…

expected

…

fenv.h

[libc++][C++03] Remove some of the C++03-specific C wrapper headers (#163772)

2025-10-24 10:08:21 +02:00

filesystem

…

flat_map

[libc++] LWG 3987 provide iterator.range access from flat_{map,set} (#137524)

2025-07-06 12:25:18 +01:00

flat_set

[libc++] LWG 3987 provide iterator.range access from flat_{map,set} (#137524)

2025-07-06 12:25:18 +01:00

float.h

[libc++][C++03] Remove some of the C++03-specific C wrapper headers (#163772)

2025-10-24 10:08:21 +02:00

format

…

forward_list

[libc++][forward_list] Applied [[nodiscard]] (#169019)

2025-11-24 16:30:17 +02:00

fstream

[libc++] Add support for picolibc and newlib in RUNTIMES_USE_LIBC (#147956)

2025-11-28 11:50:06 +00:00

functional

[libc++] P2655R3 common_reference_t of reference_wrapper Should Be a Reference Type (#141408)

2025-07-06 17:32:59 +01:00

future

[libc++] Remove some of the uses of aligned_storage inside the library (#161635)

2025-11-11 11:03:02 +01:00

initializer_list

[libc++] Applied [[nodiscard]] to Language Support (partially) (#169611)

2025-11-26 22:17:38 +02:00

inttypes.h

[libc++][C++03] Remove some of the C++03-specific C wrapper headers (#163772)

2025-10-24 10:08:21 +02:00

iomanip

[libc++] Granularize <locale> (#146650)

2025-07-05 18:11:58 +02:00

ios

…

iosfwd

…

iostream

…

istream

[libc++][istream] P3223R2: Making std::istream::ignore less surprising (#147007)

2025-09-30 11:26:30 -04:00

iterator

[libc++][ranges] Ensure range access CPOs are provided in <iterator> (#151745)

2025-08-18 13:26:13 +08:00

latch

[libc++] Applied [[nodiscard]] to concurrency (partially) (#169463)

2025-11-27 00:04:27 +02:00

limits

[libc++] Remove is_signed<T> use from <limits> (#168334)

2025-11-19 18:50:27 +01:00

list

[libc++][list] Applied [[nodiscard]] (#169015)

2025-11-24 12:32:50 +02:00

locale

[libc++] Granularize <locale> (#146650)

2025-07-05 18:11:58 +02:00

map

[libc++] Optimize __tree copy/move constructor/assignment with allocator (#163558)

2025-11-12 15:53:37 +01:00

math.h

[libc++] Workaround for a bug of overloads in MS UCRT's <math.h> (#149234)

2025-08-05 17:47:11 +08:00

mdspan

…

memory

…

memory_resource

…

module.modulemap.in

[libc++] Introduce __specialized_algorithms (#167295)

2025-11-25 13:46:19 +01:00

mutex

[libc++] Applied [[nodiscard]] to concurrency (partially) (#169463)

2025-11-27 00:04:27 +02:00

new

…

numbers

…

numeric

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optional

[libc++] Merge is_{,un}bounded_array.h into is_array.h (#167479)

2025-11-13 09:29:28 +01:00

ostream

[libc++] Granularize <locale> (#146650)

2025-07-05 18:11:58 +02:00

print

[libc++] Diagnose passing null pointers to a bunch of APIs (#148585)

2025-07-19 11:12:20 +02:00

queue

[libc++][queue] Applied [[nodiscard]] (#169469)

2025-11-27 09:44:28 +08:00

random

…

ranges

[libc++][ranges] P3060R3: Add std::views::indices(n) (#146823)

2025-10-06 18:13:25 +03:00

ratio

…

regex

[libc++] Add support for picolibc and newlib in RUNTIMES_USE_LIBC (#147956)

2025-11-28 11:50:06 +00:00

scoped_allocator

[libc++] Refactor internal index_sequence API to match the public one (#149475)

2025-07-20 11:23:31 +02:00

semaphore

[libc++] Applied [[nodiscard]] to concurrency (partially) (#169463)

2025-11-27 00:04:27 +02:00

set

[libc++] Optimize __tree copy/move constructor/assignment with allocator (#163558)

2025-11-12 15:53:37 +01:00

shared_mutex

[libc++] Add the thread safety annotations unconditionally (#117497)

2025-07-05 18:07:07 +02:00

source_location

…

span

[libc++][span] Mark functions as [[nodiscard]] (#168033)

2025-11-18 05:38:06 +02:00

sstream

[libc++][NFC] Refactor __is_allocator to be a variable template (#159584)

2025-09-24 10:41:29 +02:00

stack

[libc++][stack] Applied [[nodiscard]] (#169468)

2025-11-25 18:55:34 +02:00

stdatomic.h

…

stddef.h

[libc++][C++03] Remove some of the C++03-specific C wrapper headers (#163772)

2025-10-24 10:08:21 +02:00

stdexcept

…

stdio.h

[libc++][C++03] Remove some of the C++03-specific C wrapper headers (#163772)

2025-10-24 10:08:21 +02:00

stdlib.h

…

stop_token

…

streambuf

[libc++] Add internal checks for some basic_streambuf invariants (#144602)

2025-08-20 11:09:39 -04:00

string

[libc++][string] Applied [[nodiscard]] to non-member functions (#169330)

2025-11-25 04:02:40 +02:00

string_view

[libc++][string_view] Applied [[nodiscard]] (#169010)

2025-11-24 18:44:44 +02:00

string.h

…

strstream

…

syncstream

…

system_error

…

tgmath.h

[libc++][C++03] Remove some of the C++03-specific C wrapper headers (#163772)

2025-10-24 10:08:21 +02:00

thread

…

tuple

[libc++] Remove __is_replaceable emulation (#167355)

2025-11-11 07:53:56 -05:00

type_traits

[libc++] Merge is_{,un}bounded_array.h into is_array.h (#167479)

2025-11-13 09:29:28 +01:00

typeindex

…

typeinfo

[libc++][NFC] Make __type_info_implementations a namespace (#166339)

2025-11-05 10:00:47 +01:00

uchar.h

…

unordered_map

[libc++][NFC] Refactor __is_allocator to be a variable template (#159584)

2025-09-24 10:41:29 +02:00

unordered_set

[libc++] Remove a few unused includes (#165687)

2025-11-02 10:27:56 +01:00

utility

…

valarray

[libc++] Use std::__{scope,exception}_guard throughout the code base (#161322)

2025-10-09 09:32:40 +02:00

variant

[libc++] Remove __is_replaceable emulation (#167355)

2025-11-11 07:53:56 -05:00

vector

…

version

[libc++] Implement P2988R12: std::optional<T&> (#155202)

2025-11-12 11:00:08 +08:00

wchar.h

…

wctype.h

[libc++][C++03] Remove some of the C++03-specific C wrapper headers (#163772)

2025-10-24 10:08:21 +02:00