Make new usable for both kernel and user calls

4 files changed, 18 insertions, 0 deletions

diff --git a/arch/x86_64/include/arch/context_switching/interrupt_descriptor_table/segment_selector.hpp b/arch/x86_64/include/arch/context_switching/interrupt_descriptor_table/segment_selector.hpp
index 5be449f..82719bc 100644
--- a/arch/x86_64/include/arch/context_switching/interrupt_descriptor_table/segment_selector.hpp
+++ b/arch/x86_64/include/arch/context_switching/interrupt_descriptor_table/segment_selector.hpp
@@ -67,6 +67,14 @@ namespace teachos::arch::context_switching::interrupt_descriptor_table
     auto contains_flags(std::bitset<3U> other) const -> bool;
 
     /**
+     * @brief Gets the index into the global descriptor table this segment selector is pointing too.
+     *
+     * @return Underlying value of the index field, bit 3 - 16.
+     */
+    [[gnu::section(".user_text")]]
+    auto get_index() const -> uint16_t;
+
+    /**
      * @brief Defaulted three-way comparsion operator.
      */
     auto operator<=>(segment_selector const & other) const -> std::strong_ordering = default;
diff --git a/arch/x86_64/include/arch/context_switching/syscall/main.hpp b/arch/x86_64/include/arch/context_switching/syscall/main.hpp
index 9d61f97..e391c1f 100644
--- a/arch/x86_64/include/arch/context_switching/syscall/main.hpp
+++ b/arch/x86_64/include/arch/context_switching/syscall/main.hpp
@@ -19,6 +19,9 @@ namespace teachos::arch::context_switching::syscall
                        /// parameters and uses them as out parameters instead, where arg_0 is the start of the newly
                        /// mapped heap area and arg_1 is the size of the entire area. Can be less than 100 KiB if less
                        /// space remains.
+    ASSERT = 3U,       /// Loads the arg_0 parameter as a boolean which needs to be true or it will print the message in
+                  /// arg_1 parameter onto the VGA buffer screen, keep it as a nullptr if it shouldn't print anything
+                  /// and then it halts the further execution of the application.
   };
 
   /**
diff --git a/arch/x86_64/include/arch/kernel/cpu/segment_register.hpp b/arch/x86_64/include/arch/kernel/cpu/segment_register.hpp
index 36ada23..a236452 100644
--- a/arch/x86_64/include/arch/kernel/cpu/segment_register.hpp
+++ b/arch/x86_64/include/arch/kernel/cpu/segment_register.hpp
@@ -31,6 +31,7 @@ namespace teachos::arch::kernel::cpu
    *
    * @return Segment Selector pointing to the currently loaded Code Segment.
    */
+  [[gnu::section(".user_text")]]
   auto read_code_segment_register() -> context_switching::interrupt_descriptor_table::segment_selector;
 
   /**
diff --git a/arch/x86_64/include/arch/memory/heap/global_heap_allocator.hpp b/arch/x86_64/include/arch/memory/heap/global_heap_allocator.hpp
index 6fcab6f..c98c130 100644
--- a/arch/x86_64/include/arch/memory/heap/global_heap_allocator.hpp
+++ b/arch/x86_64/include/arch/memory/heap/global_heap_allocator.hpp
@@ -97,16 +97,22 @@ namespace teachos::arch::memory::heap
   };
 }  // namespace teachos::arch::memory::heap
 
+[[gnu::section(".user_text")]]
 auto operator new(std::size_t size) -> void *;
 
+[[gnu::section(".user_text")]]
 auto operator delete(void * pointer) noexcept -> void;
 
+[[gnu::section(".user_text")]]
 auto operator delete(void * pointer, std::size_t size) noexcept -> void;
 
+[[gnu::section(".user_text")]]
 auto operator new[](std::size_t size) -> void *;
 
+[[gnu::section(".user_text")]]
 auto operator delete[](void * pointer) noexcept -> void;
 
+[[gnu::section(".user_text")]]
 auto operator delete[](void * pointer, std::size_t size) noexcept -> void;
 
 #endif  // TEACHOS_ARCH_X86_64_MEMORY_HEAP_GLOBAL_HEAP_ALLOCATOR_HPP