Add gdb for init.elf

.vscode/launch.json

@@ -0,0 +1,40 @@
+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "/system/init.elf",
+            "type": "cppdbg",
+            "request": "launch",
+            "program": "${workspaceRoot}/out/system/init.elf",
+            "cwd": "${workspaceRoot}",
+            "args": [],
+            "targetArchitecture": "x64",
+            "MIMode": "gdb",
+            "miDebuggerPath": "/usr/bin/gdb",
+            "miDebuggerArgs": "",
+            "externalConsole": false,
+            "additionalSOLibSearchPath": "${workspaceRoot}",
+            "customLaunchSetupCommands": [
+                {
+                    "text": "target remote localhost:1234",
+                    "description": "Connect to QEMU remote debugger"
+                }
+            ],
+            "setupCommands": [
+                {
+                    "description": "Enable pretty-printing for gdb",
+                    "text": "-enable-pretty-printing",
+                    "ignoreFailures": true
+                },
+                {
+                    "text": "set breakpoint pending on",
+                    "description": "Make breakpoint pending on future shared library load."
+                },
+                {
+                    "text": "file ${workspaceRoot}/out/system/init.elf",
+                    "description": "Load binary."
+                },
+            ]
+        }
+    ]
+}

apps/system/init/Makefile

@@ -48,6 +48,11 @@ else ifeq ($(OSARCH), aarch64)
 CFLAGS += -pipe
 endif
 
+ifeq ($(DEBUG), 1)
+	CFLAGS += -DDEBUG -ggdb3 -O0 -fdiagnostics-color=always -fverbose-asm
+	LDFLAGS += -ggdb3 -O0
+endif
+
 build: $(FILENAME)
 	$(OBJDUMP) -d $(FILENAME) > file_dump.map
 	mv $(FILENAME) ../../../out/system/$(FILENAME)