build: create copy of kernel binary with debug symbols

Makefile

@@ -53,6 +53,8 @@ $(BUILD_DIR)/$(KERNEL_EXEC): $(ALL_KERNEL_OBJECT_FILES)
 	@printf "    \033[1;36mLD\033[0m     \033[1mbuild/\033[35m$(KERNEL_EXEC)\033[0m\n"
 	@mkdir -p $(@D)
 	@$(LD) $^ -o $@ $(LDFLAGS) $(ARCH_LDFLAGS)
+	@cp $@ $@.dbg
+	@$(STRIP) $@
 
 $(BUILD_DIR)/%.o: %.S
 	@printf "    \033[1;32mAS\033[0m     \033[35m$(KERNEL_EXEC)\033[0m/$<\n"

tools/kernel-debug/debug_session.sh

@@ -10,7 +10,8 @@ if command -v gdb &> /dev/null; then
 		new-session -d -s hz-debug "sleep 0.3; gdb -tui -x $gdb_cfg" \; \
 		split-window -h -l 80 \; \
 		split-window -v -l 25 "$@"\; \
-		select-pane -t 0
+		select-pane -t 0 \; \
+		resize-pane -R 20
 elif command -v lldb &> /dev/null; then
 	printf "    \033[93;1mLLDB\033[0m   boot/socks_kernel\n"
 	tmux \

tools/kernel-debug/gdb_session_init

@@ -1,4 +1,4 @@
 set confirm off
-symbol-file build/socks_kernel
+symbol-file build/socks_kernel.dbg
 target remote localhost:1234
 set confirm on

tools/kernel-debug/lldb_session_init

@@ -1,2 +1,2 @@
-file build/socks_kernel
+file build/socks_kernel.dbg
 gdb-remote localhost:1234

tools/make/gcc-cross-compile.mk

@@ -1,6 +1,8 @@
 LD  := $(ARCH)-elf-gcc
 CC  := $(ARCH)-elf-gcc
 ASM := $(ARCH)-elf-gcc
+OBJCOPY := $(ARCH)-elf-objcopy
+STRIP := $(ARCH)-elf-strip
 
 CFLAGS   := -ffreestanding -nostdlib
 ASMFLAGS := $(CFLAGS)