[libcxx-commits] [PATCH] D150044: [libc++][print] Adds FILE functions.

[Mitch Phillips via Phabricator via libcxx-commits]

hctim added a comment.

Hi folks,

Looks like this broke sanitizer buildbots, in:

  llvm-libc++-shared.cfg.in :: std/input.output/iostream.format/print.fun/vprint_nonunicode.file.pass.cpp
  llvm-libc++-shared.cfg.in :: std/input.output/iostream.format/print.fun/vprint_unicode.file.pass.cpp

(the other failure has since gone away)

  ********************
  Testing:  0.. 10.. 20.. 30.. 40.. 50
  FAIL: llvm-libc++-shared.cfg.in :: std/input.output/iostream.format/print.fun/vprint_unicode.file.pass.cpp (5373 of 10181)
  ******************** TEST 'llvm-libc++-shared.cfg.in :: std/input.output/iostream.format/print.fun/vprint_unicode.file.pass.cpp' FAILED ********************
  Script:
  --
  : 'COMPILED WITH';  /b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build0/bin/clang++ /b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/libcxx/test/std/input.output/iostream.format/print.fun/vprint_unicode.file.pass.cpp -pthread --target=aarch64-unknown-linux-gnu -g -fno-omit-frame-pointer -fsanitize=memory -nostdinc++ -I /b/sanitizer-aarch64-linux-bootstrap-msan/build/libcxx_build_msan/include/c++/v1 -I /b/sanitizer-aarch64-linux-bootstrap-msan/build/libcxx_build_msan/include/c++/v1 -I /b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/libcxx/test/support -std=c++26 -Werror -Wall -Wctad-maybe-unsupported -Wextra -Wshadow -Wundef -Wunused-template -Wno-unused-command-line-argument -Wno-attributes -Wno-pessimizing-move -Wno-noexcept-type -Wno-atomic-alignment -Wno-reserved-module-identifier -Wno-user-defined-literals -Wno-tautological-compare -Wsign-compare -Wunused-variable -Wunused-parameter -Wunreachable-code -Wno-unused-local-typedef -Wno-local-type-template-args -Wno-c++11-extensions -D_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER -D_LIBCPP_ENABLE_EXPERIMENTAL -Werror=thread-safety -Wuser-defined-warnings  -lc++experimental -nostdlib++ -L /b/sanitizer-aarch64-linux-bootstrap-msan/build/libcxx_build_msan/lib -Wl,-rpath,/b/sanitizer-aarch64-linux-bootstrap-msan/build/libcxx_build_msan/lib -lc++ -o /b/sanitizer-aarch64-linux-bootstrap-msan/build/libcxx_build_msan/test/std/input.output/iostream.format/print.fun/Output/vprint_unicode.file.pass.cpp.dir/t.tmp.exe
  : 'EXECUTED AS';  "/usr/bin/python3.10" /b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/libcxx/test/../utils/run.py --execdir /b/sanitizer-aarch64-linux-bootstrap-msan/build/libcxx_build_msan/test/std/input.output/iostream.format/print.fun/Output/vprint_unicode.file.pass.cpp.dir --  /b/sanitizer-aarch64-linux-bootstrap-msan/build/libcxx_build_msan/test/std/input.output/iostream.format/print.fun/Output/vprint_unicode.file.pass.cpp.dir/t.tmp.exe
  --
  Exit Code: 250
  Command Output (stdout):
  --
  $ ":" "COMPILED WITH"
  note: command had no output on stdout or stderr
  $ "/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build0/bin/clang++" "/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/libcxx/test/std/input.output/iostream.format/print.fun/vprint_unicode.file.pass.cpp" "-pthread" "--target=aarch64-unknown-linux-gnu" "-g" "-fno-omit-frame-pointer" "-fsanitize=memory" "-nostdinc++" "-I" "/b/sanitizer-aarch64-linux-bootstrap-msan/build/libcxx_build_msan/include/c++/v1" "-I" "/b/sanitizer-aarch64-linux-bootstrap-msan/build/libcxx_build_msan/include/c++/v1" "-I" "/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/libcxx/test/support" "-std=c++26" "-Werror" "-Wall" "-Wctad-maybe-unsupported" "-Wextra" "-Wshadow" "-Wundef" "-Wunused-template" "-Wno-unused-command-line-argument" "-Wno-attributes" "-Wno-pessimizing-move" "-Wno-noexcept-type" "-Wno-atomic-alignment" "-Wno-reserved-module-identifier" "-Wno-user-defined-literals" "-Wno-tautological-compare" "-Wsign-compare" "-Wunused-variable" "-Wunused-parameter" "-Wunreachable-code" "-Wno-unused-local-typedef" "-Wno-local-type-template-args" "-Wno-c++11-extensions" "-D_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER" "-D_LIBCPP_ENABLE_EXPERIMENTAL" "-Werror=thread-safety" "-Wuser-defined-warnings" "-lc++experimental" "-nostdlib++" "-L" "/b/sanitizer-aarch64-linux-bootstrap-msan/build/libcxx_build_msan/lib" "-Wl,-rpath,/b/sanitizer-aarch64-linux-bootstrap-msan/build/libcxx_build_msan/lib" "-lc++" "-o" "/b/sanitizer-aarch64-linux-bootstrap-msan/build/libcxx_build_msan/test/std/input.output/iostream.format/print.fun/Output/vprint_unicode.file.pass.cpp.dir/t.tmp.exe"
  note: command had no output on stdout or stderr
  $ ":" "EXECUTED AS"
  note: command had no output on stdout or stderr
  $ "/usr/bin/python3.10" "/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/libcxx/test/../utils/run.py" "--execdir" "/b/sanitizer-aarch64-linux-bootstrap-msan/build/libcxx_build_msan/test/std/input.output/iostream.format/print.fun/Output/vprint_unicode.file.pass.cpp.dir" "--" "/b/sanitizer-aarch64-linux-bootstrap-msan/build/libcxx_build_msan/test/std/input.output/iostream.format/print.fun/Output/vprint_unicode.file.pass.cpp.dir/t.tmp.exe"
  # command stderr:
  libc++abi: terminating due to uncaught exception of type std::__1::format_error: Argument index out of bounds
  error: command failed with exit status: 250

You can reproduce the exact bot with https://github.com/google/sanitizers/wiki/SanitizerBotReproduceBuild (`buildbot_bootstrap_msan.sh` is that particular bot), but I suspect a libcxxabi-libcxx bootstrap build should be sufficient to reproduce.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D150044/new/

https://reviews.llvm.org/D150044