[libc-commits] [libc] [libc] Implement (v|f)printf on the GPU (PR #96369)

Fri Jul 12 17:39:00 PDT 2024

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `libc-aarch64-ubuntu-fullbuild-dbg` running on `libc-aarch64-ubuntu` while building `libc` at step 4 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/71/builds/2057

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)
...
-- Performing Test HAVE_GNU_POSIX_REGEX -- failed to compile
-- Performing Test HAVE_POSIX_REGEX -- success
-- Performing Test HAVE_STEADY_CLOCK -- success
-- Performing Test HAVE_PTHREAD_AFFINITY -- failed to compile
-- Configuring done
-- Generating done
-- Build files have been written to: /home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/build
@@@BUILD_STEP build libc@@@
Running: ninja libc
[1/10] 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/clang++ -DLIBC_NAMESPACE=__llvm_libc_19_0_0_git -D_DEBUG -Iprojects/libc/src/stdio/generic -I/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/src/stdio/generic -I/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc -isystem projects/libc/include -fPIC -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -g -fpie -ffreestanding -DLIBC_FULL_BUILD -nostdlibinc -idirafter/usr/include -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 -Wall -Wextra -Werror -Wconversion -Wno-sign-conversion -Wimplicit-fallthrough -Wwrite-strings -Wextra-semi -Wnewline-eof -Wnonportable-system-include-path -Wstrict-prototypes -Wthread-safety -Wglobal-constructors -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/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/src/stdio/generic/vprintf.cpp
In file included from /home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/src/stdio/generic/vprintf.cpp:11:
In file included from /home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/src/__support/File/file.h:18:
In file included from /home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/src/__support/threads/mutex.h:41:
In file included from /home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/src/__support/threads/linux/mutex.h:17:
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/src/__support/threads/linux/raw_mutex.h:23:2: error: #warning is a language extension [-Werror,-Wpedantic]
#warning "LIBC_COPT_TIMEOUT_ENSURE_MONOTONICITY is not defined, defaulting to 1"
 ^
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/src/__support/threads/linux/raw_mutex.h:23:2: error: "LIBC_COPT_TIMEOUT_ENSURE_MONOTONICITY is not defined, defaulting to 1" [-Werror,-W#warnings]
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/src/__support/threads/linux/raw_mutex.h:32:2: error: #warning is a language extension [-Werror,-Wpedantic]
#warning                                                                       \
 ^
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/src/__support/threads/linux/raw_mutex.h:32:2: error: "LIBC_COPT_RAW_MUTEX_DEFAULT_SPIN_COUNT is not defined, defaulting to 100" [-Werror,-W#warnings]
4 errors generated.
[2/10] 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/clang++ -DLIBC_NAMESPACE=__llvm_libc_19_0_0_git -D_DEBUG -Iprojects/libc/src/stdio/generic -I/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/src/stdio/generic -I/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc -isystem projects/libc/include -fPIC -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -g -fpie -ffreestanding -DLIBC_FULL_BUILD -nostdlibinc -idirafter/usr/include -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 -Wall -Wextra -Werror -Wconversion -Wno-sign-conversion -Wimplicit-fallthrough -Wwrite-strings -Wextra-semi -Wnewline-eof -Wnonportable-system-include-path -Wstrict-prototypes -Wthread-safety -Wglobal-constructors -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/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/src/stdio/generic/printf.cpp
In file included from /home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/src/stdio/generic/printf.cpp:11:
In file included from /home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/src/__support/File/file.h:18:
In file included from /home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/src/__support/threads/mutex.h:41:
In file included from /home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/src/__support/threads/linux/mutex.h:17:
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/src/__support/threads/linux/raw_mutex.h:23:2: error: #warning is a language extension [-Werror,-Wpedantic]
#warning "LIBC_COPT_TIMEOUT_ENSURE_MONOTONICITY is not defined, defaulting to 1"
 ^
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/src/__support/threads/linux/raw_mutex.h:23:2: error: "LIBC_COPT_TIMEOUT_ENSURE_MONOTONICITY is not defined, defaulting to 1" [-Werror,-W#warnings]
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/src/__support/threads/linux/raw_mutex.h:32:2: error: #warning is a language extension [-Werror,-Wpedantic]
#warning                                                                       \
 ^
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/src/__support/threads/linux/raw_mutex.h:32:2: error: "LIBC_COPT_RAW_MUTEX_DEFAULT_SPIN_COUNT is not defined, defaulting to 100" [-Werror,-W#warnings]
4 errors generated.
[3/10] Building CXX object projects/libc/src/stdio/CMakeFiles/libc.src.stdio.vsnprintf.dir/vsnprintf.cpp.o
[4/10] Building CXX object projects/libc/src/stdio/CMakeFiles/libc.src.stdio.snprintf.dir/snprintf.cpp.o
[5/10] Building CXX object projects/libc/src/stdio/CMakeFiles/libc.src.stdio.sprintf.dir/sprintf.cpp.o
[6/10] Building CXX object projects/libc/src/stdio/CMakeFiles/libc.src.stdio.vsprintf.dir/vsprintf.cpp.o
[7/10] Building CXX object projects/libc/src/stdio/generic/CMakeFiles/libc.src.stdio.generic.vfprintf.dir/vfprintf.cpp.o
[8/10] Building CXX object projects/libc/src/stdio/generic/CMakeFiles/libc.src.stdio.generic.fprintf.dir/fprintf.cpp.o
[9/10] Building CXX object projects/libc/src/stdio/printf_core/CMakeFiles/libc.src.stdio.printf_core.printf_main.dir/printf_main.cpp.o
ninja: build stopped: subcommand failed.

```

https://github.com/llvm/llvm-project/pull/96369