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/*
* ========================================================
*
* NeKernel
* Copyright (C) 2024-2025, Amlal El Mahrouss, licensed under the Apache 2.0 license.
*
* ========================================================
*/
#include <CFKit/Property.h>
#include <KernelKit/ProcessScheduler.h>
#include <KernelKit/ThreadLocalStorage.h>
#include <NeKit/KString.h>
/***********************************************************************************/
/// @bugs: 0
/// @file ThreadLocalStorage.cc
/// @brief NeKernel Thread Local Storage.
///! @author Amlal El Mahrouss (amlal@nekernel.org)
/***********************************************************************************/
using namespace Kernel;
/**
* @brief Checks for cookie inside the TIB.
* @param tib_ptr the TIB to check.
* @return if the cookie is enabled, true; false otherwise
*/
Boolean tls_check_tib(THREAD_INFORMATION_BLOCK* tib_ptr) {
if (!tib_ptr) return false;
return tib_ptr->Cookie[kCookieMag0Idx] == kCookieMag0 &&
tib_ptr->Cookie[kCookieMag1Idx] == kCookieMag1 &&
tib_ptr->Cookie[kCookieMag2Idx] == kCookieMag2;
}
/**
* @brief System call implementation of the TLS check.
* @param tib_ptr The TIB record.
* @return if the TIB record is valid or not.
*/
EXTERN_C Bool tls_check_syscall_impl(Kernel::VoidPtr tib_ptr) noexcept {
if (!tib_ptr) {
kout << "TLS: Failed because of an invalid TIB...\r";
return No;
}
THREAD_INFORMATION_BLOCK* tib = reinterpret_cast<THREAD_INFORMATION_BLOCK*>(tib_ptr);
return tls_check_tib(tib);
}
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