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Kernel: Add support for setting up a x86_64 GDT once in C++ land

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Gunnar Beutner 2021-06-25 14:34:04 +02:00 • committed by Andreas Kling
parent 29d9666e02
commit f630299d49
5 changed files with 55 additions and 11 deletions
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4
Kernel/Syscalls/mmap.cpp
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@ -607,9 +607,13 @@ KResultOr<FlatPtr> Process::sys$allocate_tls(Userspace<const char*> initial_data
if (tsr_result.is_error())
return EFAULT;
#if ARCH(I386)
auto& tls_descriptor = Processor::current().get_gdt_entry(GDT_SELECTOR_TLS);
tls_descriptor.set_base(main_thread->thread_specific_data());
tls_descriptor.set_limit(main_thread->thread_specific_region_size());
#else
TODO();
#endif
return m_master_tls_region.unsafe_ptr()->vaddr().get();
}