arch/x86_64/src/boot/initialize_runtime.cpp


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#include <algorithm>
#include <functional>
#include <span>

extern "C"
{
  using global_initializer = auto (*)() -> void;

  extern global_initializer __init_array_start;
  extern global_initializer __init_array_end;

  auto invoke_global_constructors() -> void
  {
    auto initializers = std::span{&__init_array_start, &__init_array_end};
    std::ranges::for_each(initializers, [](auto invokable) { std::invoke(invokable); });
  }
}