Initial commit

.gitignore

@@ -0,0 +1,3 @@
+bin/
+obj/
+

.vscode/launch.json

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+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "g++",
+            "type": "cppdbg",
+            "request": "launch",
+            "program": "${workspaceFolder}/bin/bootloader",
+            "args": [],
+            "stopAtEntry": false,
+            "cwd": "${workspaceFolder}",
+            "environment": [],
+            "externalConsole": false,
+            "MIMode": "gdb",
+            "setupCommands": [
+                {
+                    "description": "Enable pretty-printing for gdb",
+                    "text": "-enable-pretty-printing",
+                    "ignoreFailures": true
+                }
+            ],
+            "preLaunchTask": "all",
+            "miDebuggerPath": "/usr/bin/gdb"
+        }
+    ]
+}

.vscode/settings.json

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+{
+    "files.associations": {
+        "array": "cpp",
+        "deque": "cpp",
+        "string": "cpp",
+        "unordered_map": "cpp",
+        "vector": "cpp",
+        "iterator": "cpp",
+        "memory_resource": "cpp",
+        "optional": "cpp",
+        "string_view": "cpp",
+        "initializer_list": "cpp",
+        "type_traits": "cpp",
+        "utility": "cpp"
+    }
+}

.vscode/tasks.json

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+{
+    "version": "2.0.0",
+    "type": "shell",
+    "command": "make",
+    "echoCommand": true,
+    "problemMatcher": {
+        "base": "$gcc",
+    },
+    "presentation": {
+        "focus": true,
+        "reveal": "always",
+        "panel": "shared",
+        "clear": true,
+    },
+    "tasks": [
+        {
+            "label": "all",
+            "args": ["all"],
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            }
+        },
+        {
+            "label": "clean",
+            "args": ["clean"],
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            }
+        }
+    ]
+}

Makefile

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+CROSS_COMPILE ?=
+
+TARGET_FILE ?= bootloader
+
+CXXFLAGS += -O0
+CXXFLAGS += -ggdb3
+CXXFLAGS += -std=c++17
+CXXFLAGS += -pedantic
+CXXFLAGS += -pedantic-errors
+CXXFLAGS += -ffunction-sections -fdata-sections
+CXXFLAGS += -fno-implicit-inline-templates
+CXXFLAGS += -Isrc
+CXXFLAGS += -std=c++20
+
+
+LD_LIBS := -lc -lgcc -lpthread
+
+CC = $(CROSS_COMPILE)gcc
+CXX = $(CROSS_COMPILE)g++
+
+OBJ_DIR := obj
+BIN_DIR := bin
+SRC_DIR := src
+
+CC_SRCS = $(wildcard $(SRC_DIR)/*.cc)
+
+CC_OBJS = $(patsubst %.cc,$(OBJ_DIR)/%.o,$(notdir $(CC_SRCS)))
+
+OBJS = $(CC_OBJS)
+TARGET = $(BIN_DIR)/$(TARGET_FILE)
+
+
+.PHONY: all
+all: $(TARGET)
+
+$(TARGET): $(OBJS) Makefile
+	@mkdir -p $(BIN_DIR)
+	$(CXX) $(LD_FLAGS) $(OBJS) $(LD_LIBS) -o $@
+
+$(OBJ_DIR)/%.o: $(SRC_DIR)/%.cc
+	@mkdir -p $(dir $@)
+	@$(call makedep,$<,$@,$(patsubst %.cc,%.d,$(OBJ_DIR)/$(notdir $<)),$(CXXFLAGS))
+	$(CXX) -c $(CXXFLAGS) -o $@ $<
+
+.PHONY: clean
+clean:
+	rm -rf \
+	$(OBJS) \
+	$(patsubst %.o,%.d,$(OBJS)) \
+	$(TARGET)
+
+define makedep
+	$(CXX) -MM -MF $3 -MP -MT $2 $4 $1
+endef
+
+ifneq ($(MAKECMDGOALS),clean)
+-include $(subst .o,.d,$(OBJS))
+endif