try compiling v8 on arm64 host using gcc failed.

[zr t]

trying to compile v8 on arm64 host. and set is_clang=false ( I tried compiling clang but failed), and got an error like this.

In file included from ../../third_party/libc++/src/include/__atomic/support.h:107,
from ../../third_party/libc++/src/include/__atomic/contention_t.h:12,
from ../../third_party/libc++/src/include/__atomic/atomic_sync.h:12,
from ../../third_party/libc++/src/include/__atomic/atomic.h:12,
from ../../third_party/libc++/src/include/__atomic/aliases.h:12,
from ../../third_party/libc++/src/include/atomic:595,
from ../../src/execution/isolate.h:8,
from ../../src/execution/isolate-inl.h:8,
from ../../src/objects/arguments-inl.h:8,
from gen/torque-generated/src/objects/arguments-tq.cc:1:
../../third_party/libc++/src/include/__atomic/support/gcc.h: In instantiation of ‘_Tp std::__Cr::__cxx_atomic_load(const __cxx_atomic_base_impl<_Tp>*, memory_order) [with _Tp = v8::interna
l::TaggedPayload]’:
../../third_party/libc++/src/include/__atomic/atomic.h:67:34: required from ‘_Tp std::__Cr::__atomic_base<_Tp, >::load(std::__Cr::memory_order) const [with _Tp = v8::internal
::TaggedPayload; bool = false]’
67 | return std::__cxx_atomic_load(std::addressof(__a_), __m);
| ~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
../../src/sandbox/external-pointer-table.h:124:25: required from here
124 | return payload_.load(std::memory_order_relaxed);
| ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
../../third_party/libc++/src/include/__atomic/support/gcc.h:109:7: error: no matching function for call to ‘v8::internal::TaggedPayload
nterTaggingScheme>::TaggedPayload()’
109 | _Tp __ret;
| ^~~~~

my gcc version is 14.2, is there a way to work around to handle this?

[zr t]

or is there a suitable version of gcc for compiling v8?

[Sam Cao]

I cross compile the Linux arm64 monolith build on Ubuntu x86_64 successfully.