From 68db123a2f37a66aea218fa48a5bab8ea6b12951 Mon Sep 17 00:00:00 2001
From: "felix.morgner@ost.ch" <felix.morgner@gmail.com>
Date: Sat, 7 Oct 2023 10:45:45 +0200
Subject: x86_64: implement first bootable kernel

---
 source/kernel/CMakeLists.txt | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 source/kernel/CMakeLists.txt

(limited to 'source/kernel/CMakeLists.txt')

diff --git a/source/kernel/CMakeLists.txt b/source/kernel/CMakeLists.txt
new file mode 100644
index 0000000..c8e0c4a
--- /dev/null
+++ b/source/kernel/CMakeLists.txt
@@ -0,0 +1,33 @@
+set(TEACHOS_KERNEL_LINKER_SCRIPT "${CMAKE_CURRENT_SOURCE_DIR}/arch/${CMAKE_SYSTEM_PROCESSOR}/kern.ld")
+mark_as_advanced(TEACHOS_KERNEL_LINKER_SCRIPT)
+
+add_executable("kernel"
+  "src/entry.cpp"
+)
+
+target_compile_features("kernel" PRIVATE
+  "cxx_std_20"
+)
+
+target_compile_options("kernel" PRIVATE
+  "$<$<CXX_COMPILER_ID:GNU>:-Wall>"
+  "$<$<CXX_COMPILER_ID:GNU>:-Wextra>"
+  "$<$<CXX_COMPILER_ID:GNU>:-Werror>"
+  "$<$<CXX_COMPILER_ID:GNU>:-pedantic-errors>"
+)
+
+target_link_options("kernel" PRIVATE
+  "-T${TEACHOS_KERNEL_LINKER_SCRIPT}"
+)
+
+target_link_libraries("kernel" PRIVATE
+  "-Wl,--whole-archive"
+  "teachos::boot"
+  "-Wl,--no-whole-archive"
+)
+
+set_target_properties("kernel" PROPERTIES
+  CXX_EXTENSIONS OFF
+  CXX_STANDARD_REQUIRED YES
+  LINK_DEPENDS "${TEACHOS_KERNEL_LINKER_SCRIPT}"
+)
-- 
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