[libcxx-commits] [clang] [libcxx] [libcxx]support freestanding libc++ (PR #208900)

[via libcxx-commits]

github-actions[bot] wrote:

<!--PREMERGE ADVISOR COMMENT: Linux-->
# :penguin: Linux x64 Test Results

* 56339 tests passed
* 1172 tests skipped

All executed tests passed, but another part of the build **failed**. Click on a failure below to see the details.

<details>
<summary>libcxxabi/src/CMakeFiles/cxxabi_shared_objects.dir/abort_message.cpp.o</summary>

```
FAILED: libcxxabi/src/CMakeFiles/cxxabi_shared_objects.dir/abort_message.cpp.o
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/./bin/clang++ --target=x86_64-unknown-linux-gnu -DHAVE___CXA_THREAD_ATEXIT_IMPL -DLIBCXX_BUILDING_LIBCXXABI -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_LIBCPP_AVAILABILITY_MINIMUM_HEADER_VERSION=2 -D_LIBCPP_BUILDING_LIBRARY -D_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER -D_LIBCXXABI_BUILDING_LIBRARY -D_LIBCXXABI_LINK_PTHREAD_LIB -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/gha/actions-runner/_work/llvm-project/llvm-project/libunwind/include -I/home/gha/actions-runner/_work/llvm-project/llvm-project/libcxxabi/../libcxx/src -I/home/gha/actions-runner/_work/llvm-project/llvm-project/libcxxabi/include -I/home/gha/actions-runner/_work/llvm-project/llvm-project/build/include/x86_64-unknown-linux-gnu/c++/v1 -I/home/gha/actions-runner/_work/llvm-project/llvm-project/build/include/c++/v1 -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wno-pass-failed -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -Xclang -fno-pch-timestamp  -O3 -DNDEBUG -std=c++23 -fPIC -nostdinc++ -fstrict-aliasing -funwind-tables -D_DEBUG -UNDEBUG -UNDEBUG -Wall -Wextra -Wnewline-eof -Wshadow -Wwrite-strings -Wno-unused-parameter -Wno-long-long -Werror=return-type -Wextra-semi -Wundef -Wunused-template -Wformat-nonliteral -Wzero-length-array -Wdeprecated-redundant-constexpr-static-def -Wno-nullability-completeness -Wmissing-prototypes -Wno-user-defined-literals -Wno-covered-switch-default -Wno-suggest-override -Wno-error -fsized-deallocation -fvisibility=hidden -fdebug-prefix-map=/home/gha/actions-runner/_work/llvm-project/llvm-project/build/include/c++/v1=/home/gha/actions-runner/_work/llvm-project/llvm-project/libcxx/include -MD -MT libcxxabi/src/CMakeFiles/cxxabi_shared_objects.dir/abort_message.cpp.o -MF libcxxabi/src/CMakeFiles/cxxabi_shared_objects.dir/abort_message.cpp.o.d -o libcxxabi/src/CMakeFiles/cxxabi_shared_objects.dir/abort_message.cpp.o -c /home/gha/actions-runner/_work/llvm-project/llvm-project/libcxxabi/src/abort_message.cpp
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/libcxxabi/src/abort_message.cpp:10:
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/include/c++/v1/stdio.h:110:2: error: #endif without #if
110 | #endif
|  ^
1 error generated.
```
</details>
<details>
<summary>libcxxabi/src/CMakeFiles/cxxabi_static_objects.dir/abort_message.cpp.o</summary>

```
FAILED: libcxxabi/src/CMakeFiles/cxxabi_static_objects.dir/abort_message.cpp.o
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/./bin/clang++ --target=x86_64-unknown-linux-gnu -DHAVE___CXA_THREAD_ATEXIT_IMPL -DLIBCXX_BUILDING_LIBCXXABI -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_LIBCPP_AVAILABILITY_MINIMUM_HEADER_VERSION=2 -D_LIBCPP_BUILDING_LIBRARY -D_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER -D_LIBCXXABI_BUILDING_LIBRARY -D_LIBCXXABI_LINK_PTHREAD_LIB -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/gha/actions-runner/_work/llvm-project/llvm-project/libunwind/include -I/home/gha/actions-runner/_work/llvm-project/llvm-project/libcxxabi/../libcxx/src -I/home/gha/actions-runner/_work/llvm-project/llvm-project/libcxxabi/include -I/home/gha/actions-runner/_work/llvm-project/llvm-project/build/include/x86_64-unknown-linux-gnu/c++/v1 -I/home/gha/actions-runner/_work/llvm-project/llvm-project/build/include/c++/v1 -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wno-pass-failed -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -Xclang -fno-pch-timestamp  -O3 -DNDEBUG -std=c++23 -nostdinc++ -fstrict-aliasing -funwind-tables -D_DEBUG -UNDEBUG -UNDEBUG -Wall -Wextra -Wnewline-eof -Wshadow -Wwrite-strings -Wno-unused-parameter -Wno-long-long -Werror=return-type -Wextra-semi -Wundef -Wunused-template -Wformat-nonliteral -Wzero-length-array -Wdeprecated-redundant-constexpr-static-def -Wno-nullability-completeness -Wmissing-prototypes -Wno-user-defined-literals -Wno-covered-switch-default -Wno-suggest-override -Wno-error -fsized-deallocation -fvisibility=hidden -fdebug-prefix-map=/home/gha/actions-runner/_work/llvm-project/llvm-project/build/include/c++/v1=/home/gha/actions-runner/_work/llvm-project/llvm-project/libcxx/include -MD -MT libcxxabi/src/CMakeFiles/cxxabi_static_objects.dir/abort_message.cpp.o -MF libcxxabi/src/CMakeFiles/cxxabi_static_objects.dir/abort_message.cpp.o.d -o libcxxabi/src/CMakeFiles/cxxabi_static_objects.dir/abort_message.cpp.o -c /home/gha/actions-runner/_work/llvm-project/llvm-project/libcxxabi/src/abort_message.cpp
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/libcxxabi/src/abort_message.cpp:10:
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/include/c++/v1/stdio.h:110:2: error: #endif without #if
110 | #endif
|  ^
1 error generated.
```
</details>
<details>
<summary>libcxxabi/src/CMakeFiles/cxxabi_shared_objects.dir/cxa_demangle.cpp.o</summary>

```
FAILED: libcxxabi/src/CMakeFiles/cxxabi_shared_objects.dir/cxa_demangle.cpp.o
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/./bin/clang++ --target=x86_64-unknown-linux-gnu -DHAVE___CXA_THREAD_ATEXIT_IMPL -DLIBCXX_BUILDING_LIBCXXABI -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_LIBCPP_AVAILABILITY_MINIMUM_HEADER_VERSION=2 -D_LIBCPP_BUILDING_LIBRARY -D_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER -D_LIBCXXABI_BUILDING_LIBRARY -D_LIBCXXABI_LINK_PTHREAD_LIB -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/gha/actions-runner/_work/llvm-project/llvm-project/libunwind/include -I/home/gha/actions-runner/_work/llvm-project/llvm-project/libcxxabi/../libcxx/src -I/home/gha/actions-runner/_work/llvm-project/llvm-project/libcxxabi/include -I/home/gha/actions-runner/_work/llvm-project/llvm-project/build/include/x86_64-unknown-linux-gnu/c++/v1 -I/home/gha/actions-runner/_work/llvm-project/llvm-project/build/include/c++/v1 -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wno-pass-failed -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -Xclang -fno-pch-timestamp  -O3 -DNDEBUG -std=c++23 -fPIC -nostdinc++ -fstrict-aliasing -funwind-tables -D_DEBUG -UNDEBUG -UNDEBUG -Wall -Wextra -Wnewline-eof -Wshadow -Wwrite-strings -Wno-unused-parameter -Wno-long-long -Werror=return-type -Wextra-semi -Wundef -Wunused-template -Wformat-nonliteral -Wzero-length-array -Wdeprecated-redundant-constexpr-static-def -Wno-nullability-completeness -Wmissing-prototypes -Wno-user-defined-literals -Wno-covered-switch-default -Wno-suggest-override -Wno-error -fsized-deallocation -fvisibility=hidden -fdebug-prefix-map=/home/gha/actions-runner/_work/llvm-project/llvm-project/build/include/c++/v1=/home/gha/actions-runner/_work/llvm-project/llvm-project/libcxx/include -MD -MT libcxxabi/src/CMakeFiles/cxxabi_shared_objects.dir/cxa_demangle.cpp.o -MF libcxxabi/src/CMakeFiles/cxxabi_shared_objects.dir/cxa_demangle.cpp.o.d -o libcxxabi/src/CMakeFiles/cxxabi_shared_objects.dir/cxa_demangle.cpp.o -c /home/gha/actions-runner/_work/llvm-project/llvm-project/libcxxabi/src/cxa_demangle.cpp
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/libcxxabi/src/cxa_demangle.cpp:17:
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/libcxxabi/src/demangle/ItaniumDemangle.h:20:
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/libcxxabi/src/demangle/StringViewExtras.h:20:
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/build/include/c++/v1/string_view:235:
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/build/include/c++/v1/__string/char_traits.h:29:
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/build/include/c++/v1/cstdio:104:
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/include/c++/v1/stdio.h:110:2: error: #endif without #if
110 | #endif
|  ^
1 error generated.
```
</details>
<details>
<summary>libcxxabi/src/CMakeFiles/cxxabi_static_objects.dir/cxa_demangle.cpp.o</summary>

```
FAILED: libcxxabi/src/CMakeFiles/cxxabi_static_objects.dir/cxa_demangle.cpp.o
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/./bin/clang++ --target=x86_64-unknown-linux-gnu -DHAVE___CXA_THREAD_ATEXIT_IMPL -DLIBCXX_BUILDING_LIBCXXABI -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_LIBCPP_AVAILABILITY_MINIMUM_HEADER_VERSION=2 -D_LIBCPP_BUILDING_LIBRARY -D_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER -D_LIBCXXABI_BUILDING_LIBRARY -D_LIBCXXABI_LINK_PTHREAD_LIB -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/gha/actions-runner/_work/llvm-project/llvm-project/libunwind/include -I/home/gha/actions-runner/_work/llvm-project/llvm-project/libcxxabi/../libcxx/src -I/home/gha/actions-runner/_work/llvm-project/llvm-project/libcxxabi/include -I/home/gha/actions-runner/_work/llvm-project/llvm-project/build/include/x86_64-unknown-linux-gnu/c++/v1 -I/home/gha/actions-runner/_work/llvm-project/llvm-project/build/include/c++/v1 -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wno-pass-failed -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -Xclang -fno-pch-timestamp  -O3 -DNDEBUG -std=c++23 -nostdinc++ -fstrict-aliasing -funwind-tables -D_DEBUG -UNDEBUG -UNDEBUG -Wall -Wextra -Wnewline-eof -Wshadow -Wwrite-strings -Wno-unused-parameter -Wno-long-long -Werror=return-type -Wextra-semi -Wundef -Wunused-template -Wformat-nonliteral -Wzero-length-array -Wdeprecated-redundant-constexpr-static-def -Wno-nullability-completeness -Wmissing-prototypes -Wno-user-defined-literals -Wno-covered-switch-default -Wno-suggest-override -Wno-error -fsized-deallocation -fvisibility=hidden -fdebug-prefix-map=/home/gha/actions-runner/_work/llvm-project/llvm-project/build/include/c++/v1=/home/gha/actions-runner/_work/llvm-project/llvm-project/libcxx/include -MD -MT libcxxabi/src/CMakeFiles/cxxabi_static_objects.dir/cxa_demangle.cpp.o -MF libcxxabi/src/CMakeFiles/cxxabi_static_objects.dir/cxa_demangle.cpp.o.d -o libcxxabi/src/CMakeFiles/cxxabi_static_objects.dir/cxa_demangle.cpp.o -c /home/gha/actions-runner/_work/llvm-project/llvm-project/libcxxabi/src/cxa_demangle.cpp
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/libcxxabi/src/cxa_demangle.cpp:17:
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/libcxxabi/src/demangle/ItaniumDemangle.h:20:
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/libcxxabi/src/demangle/StringViewExtras.h:20:
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/build/include/c++/v1/string_view:235:
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/build/include/c++/v1/__string/char_traits.h:29:
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/build/include/c++/v1/cstdio:104:
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/include/c++/v1/stdio.h:110:2: error: #endif without #if
110 | #endif
|  ^
1 error generated.
```
</details>

If these failures are unrelated to your changes (for example tests are broken or flaky at HEAD), please open an issue at https://github.com/llvm/llvm-project/issues and add the `infrastructure` label.

https://github.com/llvm/llvm-project/pull/208900