[libc-commits] [libc] [libc] Implement (v|f)printf on the GPU (PR #96369)
LLVM Continuous Integration via libc-commits
libc-commits at lists.llvm.org
Fri Jul 12 17:39:22 PDT 2024
llvm-ci wrote:
LLVM Buildbot has detected a new failure on builder `libc-x86_64-debian-gcc-fullbuild-dbg` running on `libc-x86_64-debian-fullbuild` while building `libc` at step 4 "annotate".
Full details are available at: https://lab.llvm.org/buildbot/#/builders/131/builds/2021
Here is the relevant piece of the build log for the reference:
```
Step 4 (annotate) failure: 'python ../llvm-zorg/zorg/buildbot/builders/annotated/libc-linux.py ...' (failure)
...
Running: ninja libc
[1/14] Building CXX object projects/libc/src/stdio/CMakeFiles/libc.src.stdio.sscanf.dir/sscanf.cpp.o
[2/14] Building CXX object projects/libc/src/stdio/scanf_core/CMakeFiles/libc.src.stdio.scanf_core.scanf_main.dir/scanf_main.cpp.o
[3/14] Building CXX object projects/libc/src/stdio/CMakeFiles/libc.src.stdio.fscanf.dir/fscanf.cpp.o
[4/14] Building CXX object projects/libc/src/stdio/CMakeFiles/libc.src.stdio.scanf.dir/scanf.cpp.o
[5/14] Building CXX object projects/libc/src/stdio/CMakeFiles/libc.src.stdio.vsprintf.dir/vsprintf.cpp.o
[6/14] Building CXX object projects/libc/src/stdio/CMakeFiles/libc.src.stdio.sprintf.dir/sprintf.cpp.o
[7/14] Building CXX object projects/libc/src/stdio/CMakeFiles/libc.src.stdio.snprintf.dir/snprintf.cpp.o
[8/14] Building CXX object projects/libc/src/stdio/CMakeFiles/libc.src.stdio.vsnprintf.dir/vsnprintf.cpp.o
[9/14] Building CXX object projects/libc/src/stdio/generic/CMakeFiles/libc.src.stdio.generic.printf.dir/printf.cpp.o
FAILED: projects/libc/src/stdio/generic/CMakeFiles/libc.src.stdio.generic.printf.dir/printf.cpp.o
/usr/bin/g++ -DLIBC_NAMESPACE=__llvm_libc_19_0_0_git -D_DEBUG -I/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/build/projects/libc/src/stdio/generic -I/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/stdio/generic -I/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc -isystem /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/build/projects/libc/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -fno-lifetime-dse -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wno-maybe-uninitialized -Wno-nonnull -Wno-class-memaccess -Wno-redundant-move -Wno-pessimizing-move -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wno-misleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -g -fpie -ffreestanding -DLIBC_FULL_BUILD -fno-builtin -fno-exceptions -fno-lax-vector-conversions -fno-unwind-tables -fno-asynchronous-unwind-tables -fno-rtti -ftrivial-auto-var-init=pattern -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -Wall -Wextra -Werror -Wconversion -Wno-sign-conversion -Wimplicit-fallthrough -Wwrite-strings -Wextra-semi -DLIBC_COPT_PUBLIC_PACKAGING -std=c++17 -MD -MT projects/libc/src/stdio/generic/CMakeFiles/libc.src.stdio.generic.printf.dir/printf.cpp.o -MF projects/libc/src/stdio/generic/CMakeFiles/libc.src.stdio.generic.printf.dir/printf.cpp.o.d -o projects/libc/src/stdio/generic/CMakeFiles/libc.src.stdio.generic.printf.dir/printf.cpp.o -c /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/stdio/generic/printf.cpp
In file included from /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/__support/threads/linux/mutex.h:17,
from /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/__support/threads/mutex.h:41,
from /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/__support/File/file.h:18,
from /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/stdio/generic/printf.cpp:11:
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/__support/threads/linux/raw_mutex.h:23:2: error: #warning is a GCC extension [-Werror]
23 | #warning "LIBC_COPT_TIMEOUT_ENSURE_MONOTONICITY is not defined, defaulting to 1"
| ^~~~~~~
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/__support/threads/linux/raw_mutex.h:23:2: error: #warning "LIBC_COPT_TIMEOUT_ENSURE_MONOTONICITY is not defined, defaulting to 1" [-Werror=cpp]
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/__support/threads/linux/raw_mutex.h:32:2: error: #warning is a GCC extension [-Werror]
32 | #warning \
| ^~~~~~~
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/__support/threads/linux/raw_mutex.h:32:2: error: #warning "LIBC_COPT_RAW_MUTEX_DEFAULT_SPIN_COUNT is not defined, defaulting to 100" [-Werror=cpp]
cc1plus: all warnings being treated as errors
[10/14] Building CXX object projects/libc/src/stdio/generic/CMakeFiles/libc.src.stdio.generic.fprintf.dir/fprintf.cpp.o
[11/14] Building CXX object projects/libc/src/stdio/generic/CMakeFiles/libc.src.stdio.generic.vfprintf.dir/vfprintf.cpp.o
[12/14] Building CXX object projects/libc/src/stdio/generic/CMakeFiles/libc.src.stdio.generic.vprintf.dir/vprintf.cpp.o
FAILED: projects/libc/src/stdio/generic/CMakeFiles/libc.src.stdio.generic.vprintf.dir/vprintf.cpp.o
/usr/bin/g++ -DLIBC_NAMESPACE=__llvm_libc_19_0_0_git -D_DEBUG -I/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/build/projects/libc/src/stdio/generic -I/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/stdio/generic -I/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc -isystem /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/build/projects/libc/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -fno-lifetime-dse -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wno-maybe-uninitialized -Wno-nonnull -Wno-class-memaccess -Wno-redundant-move -Wno-pessimizing-move -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wno-misleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -g -fpie -ffreestanding -DLIBC_FULL_BUILD -fno-builtin -fno-exceptions -fno-lax-vector-conversions -fno-unwind-tables -fno-asynchronous-unwind-tables -fno-rtti -ftrivial-auto-var-init=pattern -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -Wall -Wextra -Werror -Wconversion -Wno-sign-conversion -Wimplicit-fallthrough -Wwrite-strings -Wextra-semi -DLIBC_COPT_PUBLIC_PACKAGING -std=c++17 -MD -MT projects/libc/src/stdio/generic/CMakeFiles/libc.src.stdio.generic.vprintf.dir/vprintf.cpp.o -MF projects/libc/src/stdio/generic/CMakeFiles/libc.src.stdio.generic.vprintf.dir/vprintf.cpp.o.d -o projects/libc/src/stdio/generic/CMakeFiles/libc.src.stdio.generic.vprintf.dir/vprintf.cpp.o -c /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/stdio/generic/vprintf.cpp
In file included from /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/__support/threads/linux/mutex.h:17,
from /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/__support/threads/mutex.h:41,
from /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/__support/File/file.h:18,
from /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/stdio/generic/vprintf.cpp:11:
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/__support/threads/linux/raw_mutex.h:23:2: error: #warning is a GCC extension [-Werror]
23 | #warning "LIBC_COPT_TIMEOUT_ENSURE_MONOTONICITY is not defined, defaulting to 1"
| ^~~~~~~
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/__support/threads/linux/raw_mutex.h:23:2: error: #warning "LIBC_COPT_TIMEOUT_ENSURE_MONOTONICITY is not defined, defaulting to 1" [-Werror=cpp]
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/__support/threads/linux/raw_mutex.h:32:2: error: #warning is a GCC extension [-Werror]
32 | #warning \
| ^~~~~~~
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/__support/threads/linux/raw_mutex.h:32:2: error: #warning "LIBC_COPT_RAW_MUTEX_DEFAULT_SPIN_COUNT is not defined, defaulting to 100" [-Werror=cpp]
cc1plus: all warnings being treated as errors
[13/14] Building CXX object projects/libc/src/stdio/printf_core/CMakeFiles/libc.src.stdio.printf_core.printf_main.dir/printf_main.cpp.o
In file included from /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/stdio/printf_core/printf_main.cpp:15:
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/stdio/printf_core/parser.h: In instantiation of ‘__llvm_libc_19_0_0_git::cpp::optional<T> __llvm_libc_19_0_0_git::printf_core::Parser<ArgProvider>::get_arg_value(size_t) [with T = long double; ArgProvider = __llvm_libc_19_0_0_git::internal::ArgList; size_t = long unsigned int]’:
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/stdio/printf_core/parser.h:236:11: required from ‘__llvm_libc_19_0_0_git::printf_core::FormatSection __llvm_libc_19_0_0_git::printf_core::Parser<ArgProvider>::get_next_section() [with ArgProvider = __llvm_libc_19_0_0_git::internal::ArgList]’
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/stdio/printf_core/printf_main.cpp:27:59: required from here
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/stdio/printf_core/parser.h:415:51: note: the ABI of passing union with ‘long double’ has changed in GCC 4.4
Step 6 (build libc) failure: build libc (failure)
...
Running: ninja libc
[1/14] Building CXX object projects/libc/src/stdio/CMakeFiles/libc.src.stdio.sscanf.dir/sscanf.cpp.o
[2/14] Building CXX object projects/libc/src/stdio/scanf_core/CMakeFiles/libc.src.stdio.scanf_core.scanf_main.dir/scanf_main.cpp.o
[3/14] Building CXX object projects/libc/src/stdio/CMakeFiles/libc.src.stdio.fscanf.dir/fscanf.cpp.o
[4/14] Building CXX object projects/libc/src/stdio/CMakeFiles/libc.src.stdio.scanf.dir/scanf.cpp.o
[5/14] Building CXX object projects/libc/src/stdio/CMakeFiles/libc.src.stdio.vsprintf.dir/vsprintf.cpp.o
[6/14] Building CXX object projects/libc/src/stdio/CMakeFiles/libc.src.stdio.sprintf.dir/sprintf.cpp.o
[7/14] Building CXX object projects/libc/src/stdio/CMakeFiles/libc.src.stdio.snprintf.dir/snprintf.cpp.o
[8/14] Building CXX object projects/libc/src/stdio/CMakeFiles/libc.src.stdio.vsnprintf.dir/vsnprintf.cpp.o
[9/14] Building CXX object projects/libc/src/stdio/generic/CMakeFiles/libc.src.stdio.generic.printf.dir/printf.cpp.o
FAILED: projects/libc/src/stdio/generic/CMakeFiles/libc.src.stdio.generic.printf.dir/printf.cpp.o
/usr/bin/g++ -DLIBC_NAMESPACE=__llvm_libc_19_0_0_git -D_DEBUG -I/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/build/projects/libc/src/stdio/generic -I/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/stdio/generic -I/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc -isystem /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/build/projects/libc/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -fno-lifetime-dse -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wno-maybe-uninitialized -Wno-nonnull -Wno-class-memaccess -Wno-redundant-move -Wno-pessimizing-move -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wno-misleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -g -fpie -ffreestanding -DLIBC_FULL_BUILD -fno-builtin -fno-exceptions -fno-lax-vector-conversions -fno-unwind-tables -fno-asynchronous-unwind-tables -fno-rtti -ftrivial-auto-var-init=pattern -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -Wall -Wextra -Werror -Wconversion -Wno-sign-conversion -Wimplicit-fallthrough -Wwrite-strings -Wextra-semi -DLIBC_COPT_PUBLIC_PACKAGING -std=c++17 -MD -MT projects/libc/src/stdio/generic/CMakeFiles/libc.src.stdio.generic.printf.dir/printf.cpp.o -MF projects/libc/src/stdio/generic/CMakeFiles/libc.src.stdio.generic.printf.dir/printf.cpp.o.d -o projects/libc/src/stdio/generic/CMakeFiles/libc.src.stdio.generic.printf.dir/printf.cpp.o -c /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/stdio/generic/printf.cpp
In file included from /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/__support/threads/linux/mutex.h:17,
from /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/__support/threads/mutex.h:41,
from /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/__support/File/file.h:18,
from /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/stdio/generic/printf.cpp:11:
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/__support/threads/linux/raw_mutex.h:23:2: error: #warning is a GCC extension [-Werror]
23 | #warning "LIBC_COPT_TIMEOUT_ENSURE_MONOTONICITY is not defined, defaulting to 1"
| ^~~~~~~
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/__support/threads/linux/raw_mutex.h:23:2: error: #warning "LIBC_COPT_TIMEOUT_ENSURE_MONOTONICITY is not defined, defaulting to 1" [-Werror=cpp]
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/__support/threads/linux/raw_mutex.h:32:2: error: #warning is a GCC extension [-Werror]
32 | #warning \
| ^~~~~~~
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/__support/threads/linux/raw_mutex.h:32:2: error: #warning "LIBC_COPT_RAW_MUTEX_DEFAULT_SPIN_COUNT is not defined, defaulting to 100" [-Werror=cpp]
cc1plus: all warnings being treated as errors
[10/14] Building CXX object projects/libc/src/stdio/generic/CMakeFiles/libc.src.stdio.generic.fprintf.dir/fprintf.cpp.o
[11/14] Building CXX object projects/libc/src/stdio/generic/CMakeFiles/libc.src.stdio.generic.vfprintf.dir/vfprintf.cpp.o
[12/14] Building CXX object projects/libc/src/stdio/generic/CMakeFiles/libc.src.stdio.generic.vprintf.dir/vprintf.cpp.o
FAILED: projects/libc/src/stdio/generic/CMakeFiles/libc.src.stdio.generic.vprintf.dir/vprintf.cpp.o
/usr/bin/g++ -DLIBC_NAMESPACE=__llvm_libc_19_0_0_git -D_DEBUG -I/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/build/projects/libc/src/stdio/generic -I/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/stdio/generic -I/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc -isystem /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/build/projects/libc/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -fno-lifetime-dse -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wno-maybe-uninitialized -Wno-nonnull -Wno-class-memaccess -Wno-redundant-move -Wno-pessimizing-move -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wno-misleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -g -fpie -ffreestanding -DLIBC_FULL_BUILD -fno-builtin -fno-exceptions -fno-lax-vector-conversions -fno-unwind-tables -fno-asynchronous-unwind-tables -fno-rtti -ftrivial-auto-var-init=pattern -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -Wall -Wextra -Werror -Wconversion -Wno-sign-conversion -Wimplicit-fallthrough -Wwrite-strings -Wextra-semi -DLIBC_COPT_PUBLIC_PACKAGING -std=c++17 -MD -MT projects/libc/src/stdio/generic/CMakeFiles/libc.src.stdio.generic.vprintf.dir/vprintf.cpp.o -MF projects/libc/src/stdio/generic/CMakeFiles/libc.src.stdio.generic.vprintf.dir/vprintf.cpp.o.d -o projects/libc/src/stdio/generic/CMakeFiles/libc.src.stdio.generic.vprintf.dir/vprintf.cpp.o -c /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/stdio/generic/vprintf.cpp
In file included from /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/__support/threads/linux/mutex.h:17,
from /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/__support/threads/mutex.h:41,
from /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/__support/File/file.h:18,
from /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/stdio/generic/vprintf.cpp:11:
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/__support/threads/linux/raw_mutex.h:23:2: error: #warning is a GCC extension [-Werror]
23 | #warning "LIBC_COPT_TIMEOUT_ENSURE_MONOTONICITY is not defined, defaulting to 1"
| ^~~~~~~
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/__support/threads/linux/raw_mutex.h:23:2: error: #warning "LIBC_COPT_TIMEOUT_ENSURE_MONOTONICITY is not defined, defaulting to 1" [-Werror=cpp]
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/__support/threads/linux/raw_mutex.h:32:2: error: #warning is a GCC extension [-Werror]
32 | #warning \
| ^~~~~~~
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/__support/threads/linux/raw_mutex.h:32:2: error: #warning "LIBC_COPT_RAW_MUTEX_DEFAULT_SPIN_COUNT is not defined, defaulting to 100" [-Werror=cpp]
cc1plus: all warnings being treated as errors
[13/14] Building CXX object projects/libc/src/stdio/printf_core/CMakeFiles/libc.src.stdio.printf_core.printf_main.dir/printf_main.cpp.o
In file included from /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/stdio/printf_core/printf_main.cpp:15:
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/stdio/printf_core/parser.h: In instantiation of ‘__llvm_libc_19_0_0_git::cpp::optional<T> __llvm_libc_19_0_0_git::printf_core::Parser<ArgProvider>::get_arg_value(size_t) [with T = long double; ArgProvider = __llvm_libc_19_0_0_git::internal::ArgList; size_t = long unsigned int]’:
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/stdio/printf_core/parser.h:236:11: required from ‘__llvm_libc_19_0_0_git::printf_core::FormatSection __llvm_libc_19_0_0_git::printf_core::Parser<ArgProvider>::get_next_section() [with ArgProvider = __llvm_libc_19_0_0_git::internal::ArgList]’
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/stdio/printf_core/printf_main.cpp:27:59: required from here
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-gcc-fullbuild-dbg/llvm-project/libc/src/stdio/printf_core/parser.h:415:51: note: the ABI of passing union with ‘long double’ has changed in GCC 4.4
```
https://github.com/llvm/llvm-project/pull/96369
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