TODO run benchmarks/gc tasks
./configure: Turned on -D GC_TIMING because $_OIL_DEV is set
./configure: Wrote _build/detected-cpp-config.h
./configure: Wrote _build/detected-config.sh
In file included from /usr/include/x86_64-linux-gnu/bits/types/stack_t.h:23,
                 from /usr/include/signal.h:313,
                 from ./mycpp/gc_iolib.h:16,
                 from ./mycpp/runtime.h:16,
                 from mycpp/gc_stress_test.cc:5:
./mycpp/gc_iolib.h: In static member function ‘static constexpr uint32_t iolib::SignalSafe::field_mask()’:
./mycpp/gc_iolib.h:129:29: warning: ‘offsetof’ within non-standard-layout type ‘iolib::SignalSafe’ is conditionally-supported [-Winvalid-offsetof]
  129 |     return maskbit(offsetof(SignalSafe, pending_signals_)) |
      |                             ^
./mycpp/gc_iolib.h:130:29: warning: ‘offsetof’ within non-standard-layout type ‘iolib::SignalSafe’ is conditionally-supported [-Winvalid-offsetof]
  130 |            maskbit(offsetof(SignalSafe, empty_list_));
      |                             ^
./mycpp/gc_mylib.h: In static member function ‘static constexpr uint32_t mylib::BufLineReader::field_mask()’:
./mycpp/gc_mylib.h:228:56: warning: ‘offsetof’ within non-standard-layout type ‘mylib::BufLineReader’ is conditionally-supported [-Winvalid-offsetof]
  228 |     return LineReader::field_mask() | maskbit(offsetof(BufLineReader, s_));
      |                                                        ^
./mycpp/gc_mylib.h: In static member function ‘static constexpr unsigned int mylib::BufWriter::field_mask()’:
./mycpp/gc_mylib.h:320:52: warning: ‘offsetof’ within non-standard-layout type ‘mylib::BufWriter’ is conditionally-supported [-Winvalid-offsetof]
  320 |     return Writer::field_mask() | maskbit(offsetof(BufWriter, str_));
      |                                                    ^
In file included from /usr/include/unistd.h:226,
                 from /usr/include/x86_64-linux-gnu/bits/sigstksz.h:24,
                 from /usr/include/signal.h:328,
                 from ./mycpp/gc_iolib.h:16,
                 from ./mycpp/runtime.h:16,
                 from mycpp/gc_builtins.cc:7:
./mycpp/gc_iolib.h: In static member function ‘static constexpr uint32_t iolib::SignalSafe::field_mask()’:
./mycpp/gc_iolib.h:129:29: warning: ‘offsetof’ within non-standard-layout type ‘iolib::SignalSafe’ is conditionally-supported [-Winvalid-offsetof]
  129 |     return maskbit(offsetof(SignalSafe, pending_signals_)) |
      |                             ^
./mycpp/gc_iolib.h:130:29: warning: ‘offsetof’ within non-standard-layout type ‘iolib::SignalSafe’ is conditionally-supported [-Winvalid-offsetof]
  130 |            maskbit(offsetof(SignalSafe, empty_list_));
      |                             ^
./mycpp/gc_mylib.h: In static member function ‘static constexpr uint32_t mylib::BufLineReader::field_mask()’:
./mycpp/gc_mylib.h:228:56: warning: ‘offsetof’ within non-standard-layout type ‘mylib::BufLineReader’ is conditionally-supported [-Winvalid-offsetof]
  228 |     return LineReader::field_mask() | maskbit(offsetof(BufLineReader, s_));
      |                                                        ^
./mycpp/gc_mylib.h: In static member function ‘static constexpr unsigned int mylib::BufWriter::field_mask()’:
./mycpp/gc_mylib.h:320:52: warning: ‘offsetof’ within non-standard-layout type ‘mylib::BufWriter’ is conditionally-supported [-Winvalid-offsetof]
  320 |     return Writer::field_mask() | maskbit(offsetof(BufWriter, str_));
      |                                                    ^
In file included from /usr/include/alloca.h:24,
                 from /usr/include/stdlib.h:574,
                 from /usr/include/c++/11/cstdlib:75,
                 from /usr/include/c++/11/stdlib.h:36,
                 from ./mycpp/mark_sweep_heap.h:4,
                 from ./mycpp/gc_alloc.h:19,
                 from ./mycpp/gc_mylib.h:8,
                 from mycpp/gc_mylib.cc:1:
./mycpp/gc_mylib.h: In static member function ‘static constexpr uint32_t mylib::BufLineReader::field_mask()’:
./mycpp/gc_mylib.h:228:56: warning: ‘offsetof’ within non-standard-layout type ‘mylib::BufLineReader’ is conditionally-supported [-Winvalid-offsetof]
  228 |     return LineReader::field_mask() | maskbit(offsetof(BufLineReader, s_));
      |                                                        ^
./mycpp/gc_mylib.h: In static member function ‘static constexpr unsigned int mylib::BufWriter::field_mask()’:
./mycpp/gc_mylib.h:320:52: warning: ‘offsetof’ within non-standard-layout type ‘mylib::BufWriter’ is conditionally-supported [-Winvalid-offsetof]
  320 |     return Writer::field_mask() | maskbit(offsetof(BufWriter, str_));
      |                                                    ^
In file included from /usr/include/x86_64-linux-gnu/bits/types/stack_t.h:23,
                 from /usr/include/signal.h:313,
                 from ./mycpp/gc_iolib.h:16,
                 from mycpp/gc_mylib.cc:7:
./mycpp/gc_iolib.h: In static member function ‘static constexpr uint32_t iolib::SignalSafe::field_mask()’:
./mycpp/gc_iolib.h:129:29: warning: ‘offsetof’ within non-standard-layout type ‘iolib::SignalSafe’ is conditionally-supported [-Winvalid-offsetof]
  129 |     return maskbit(offsetof(SignalSafe, pending_signals_)) |
      |                             ^
./mycpp/gc_iolib.h:130:29: warning: ‘offsetof’ within non-standard-layout type ‘iolib::SignalSafe’ is conditionally-supported [-Winvalid-offsetof]
  130 |            maskbit(offsetof(SignalSafe, empty_list_));
      |                             ^
/usr/bin/ld: /tmp/ccd0Sx0I.o: warning: relocation against `_ZN5iolib11gSignalSafeE' in read-only section `.text'
/usr/bin/ld: /tmp/ccd0Sx0I.o: in function `mylib::CFile::readline()':
/home/runner/work/oils/oils/mycpp/gc_mylib.cc:121: undefined reference to `iolib::gSignalSafe'
/usr/bin/ld: warning: creating DT_TEXTREL in a PIE
collect2: error: ld returned 1 exit status