feat: expand user mode, add DOOM game, add manpages

2026-02-18 15:13:53 +01:00
parent 605fbcbe42
commit 24af60d669
51 changed files with 4484 additions and 43 deletions
@@ -0,0 +1,187 @@
+# Makefile for DOOM (doomgeneric) on ZenithOS
+# Copyright (c) 2025 Daniel Hammer
+
+MAKEFLAGS += -rR
+.SUFFIXES:
+
+# ---- Toolchain ----
+
+TOOLCHAIN_PREFIX := $(shell cd ../../.. && pwd)/toolchain/local/bin/x86_64-elf-
+ifneq ($(wildcard $(TOOLCHAIN_PREFIX)gcc),)
+    CC := $(TOOLCHAIN_PREFIX)gcc
+    LD := $(TOOLCHAIN_PREFIX)gcc
+else
+    CC := gcc
+    LD := gcc
+endif
+
+# ---- Paths ----
+
+DOOM_SRC   := ../../../doomgeneric/doomgeneric
+LIBC_INC   := ../../include/libc
+PROG_INC   := ../../include
+LINK_LD    := ../../link.ld
+BINDIR     := ../../bin
+OBJDIR     := obj
+
+# ---- Compiler flags ----
+
+CFLAGS := \
+    -std=gnu11 \
+    -g -O2 -pipe \
+    -Wall \
+    -Wno-unused-parameter \
+    -Wno-unused-variable \
+    -Wno-missing-field-initializers \
+    -Wno-sign-compare \
+    -Wno-pointer-sign \
+    -nostdinc \
+    -ffreestanding \
+    -fno-stack-protector \
+    -fno-stack-check \
+    -fno-PIC \
+    -ffunction-sections \
+    -fdata-sections \
+    -m64 \
+    -march=x86-64 \
+    -msse \
+    -msse2 \
+    -mno-red-zone \
+    -mcmodel=small \
+    -DNORMALUNIX \
+    -DLINUX \
+    -isystem $(LIBC_INC) \
+    -I $(PROG_INC) \
+    -I $(DOOM_SRC) \
+    -isystem $(shell $(CC) -print-file-name=include)
+
+# ---- Linker flags ----
+
+LDFLAGS := \
+    -nostdlib \
+    -static \
+    -Wl,--build-id=none \
+    -Wl,--gc-sections \
+    -Wl,-m,elf_x86_64 \
+    -z max-page-size=0x1000 \
+    -T $(LINK_LD)
+
+# ---- DOOM source files (excluding platform-specific ports and sound backends) ----
+
+DOOM_SRCS := \
+    am_map.c \
+    d_event.c \
+    d_items.c \
+    d_iwad.c \
+    d_loop.c \
+    d_main.c \
+    d_mode.c \
+    d_net.c \
+    doomdef.c \
+    doomgeneric.c \
+    doomstat.c \
+    dstrings.c \
+    dummy.c \
+    f_finale.c \
+    f_wipe.c \
+    g_game.c \
+    gusconf.c \
+    hu_lib.c \
+    hu_stuff.c \
+    i_cdmus.c \
+    i_endoom.c \
+    i_input.c \
+    i_joystick.c \
+    i_scale.c \
+    i_sound.c \
+    i_system.c \
+    i_timer.c \
+    i_video.c \
+    info.c \
+    m_argv.c \
+    m_bbox.c \
+    m_cheat.c \
+    m_config.c \
+    m_controls.c \
+    m_fixed.c \
+    m_menu.c \
+    m_misc.c \
+    m_random.c \
+    memio.c \
+    mus2mid.c \
+    p_ceilng.c \
+    p_doors.c \
+    p_enemy.c \
+    p_floor.c \
+    p_inter.c \
+    p_lights.c \
+    p_map.c \
+    p_maputl.c \
+    p_mobj.c \
+    p_plats.c \
+    p_pspr.c \
+    p_saveg.c \
+    p_setup.c \
+    p_sight.c \
+    p_spec.c \
+    p_switch.c \
+    p_telept.c \
+    p_tick.c \
+    p_user.c \
+    r_bsp.c \
+    r_data.c \
+    r_draw.c \
+    r_main.c \
+    r_plane.c \
+    r_segs.c \
+    r_sky.c \
+    r_things.c \
+    s_sound.c \
+    sha1.c \
+    sounds.c \
+    st_lib.c \
+    st_stuff.c \
+    statdump.c \
+    tables.c \
+    v_video.c \
+    w_checksum.c \
+    w_file.c \
+    w_file_stdc.c \
+    w_main.c \
+    w_wad.c \
+    wi_stuff.c \
+    z_zone.c
+
+# Local source files
+LOCAL_SRCS := doomgeneric_zenith.c libc.c
+
+# ---- Object files ----
+
+DOOM_OBJS  := $(addprefix $(OBJDIR)/,$(DOOM_SRCS:.c=.o))
+LOCAL_OBJS := $(addprefix $(OBJDIR)/,$(LOCAL_SRCS:.c=.o))
+ALL_OBJS   := $(DOOM_OBJS) $(LOCAL_OBJS)
+
+# ---- Target ----
+
+TARGET := $(BINDIR)/doom.elf
+
+.PHONY: all clean
+
+all: $(TARGET)
+
+$(TARGET): $(ALL_OBJS) $(LINK_LD) Makefile
+	mkdir -p $(BINDIR)
+	$(LD) $(CFLAGS) $(LDFLAGS) $(ALL_OBJS) -o $@
+
+# DOOM source files (from doomgeneric directory)
+$(OBJDIR)/%.o: $(DOOM_SRC)/%.c Makefile
+	mkdir -p $(OBJDIR)
+	$(CC) $(CFLAGS) -c $< -o $@
+
+# Local source files
+$(OBJDIR)/%.o: %.c Makefile
+	mkdir -p $(OBJDIR)
+	$(CC) $(CFLAGS) -c $< -o $@
+
+clean:
+	rm -rf $(OBJDIR) $(TARGET)