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make em make less make, cuz makin' make ain't make no fun

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This commit is contained in:
Niklas Gollenstede
2025-12-15 12:17:19 +01:00
parent 4245798955
commit 7ae806fa01
4 changed files with 81 additions and 6 deletions
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29
user/Makefile
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@@ -13,8 +13,31 @@ INITRD = $(BUILDDIR)/initrd.img
all: $(INITRD)
# Rezepte fuer Apps (Unterverzeichnisse)
$(APPS): $(BUILDDIR)/init.o
$(VERBOSE) $(MAKE) -C $@ -f ../Makefile.app
# recipe for compiling imgbuilder
$(IMGBUILDER): imgbuilder.cc $(MAKEFILE_LIST)
@echo "CC $@"
@if test \( ! \( -d $(@D) \) \) ;then mkdir -p $(@D);fi
$(VERBOSE) $(CXX) -std=c++23 -o $@ $<
# recipe for building the final oostubs image
$(INITRD):
$(INITRD): $(APPS) $(IMGBUILDER)
@echo "IMGBUILD $@"
@mkdir -p $(@D)
@touch $@
@if test \( ! \( -d $(@D) \) \) ;then mkdir -p $(@D);fi
$(VERBOSE) $(IMGBUILDER) $(addsuffix $(BUILDDIR)/app.img, $(APPS)) > $@
lint::
$(VERBOSE) $(foreach APP,$(APPS),$(MAKE) -C $(APP) -f ../Makefile.app lint && ) true
tidy::
$(VERBOSE) $(foreach APP,$(APPS),$(MAKE) -C $(APP) -f ../Makefile.app tidy && ) true
# clean all apps additionally to default clean recipe from common.mk
clean::
$(VERBOSE) $(foreach APP,$(APPS),$(MAKE) -C $(APP) -f ../Makefile.app clean && ) true
.PHONY: all clean $(APPS)

53
user/Makefile.app Normal file
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@@ -0,0 +1,53 @@
# --------------------------------------------------------------------------
# Linker Script
LINKER_SCRIPT = ../sections.ld
# Files to be compiled (important: defined prior to importing common.mk!)
CC_SOURCES = $(shell find * -name "*.cc" -a ! -name '.*' )
ASM_SOURCES = $(shell find * -name "*.asm" -a ! -name '.*' )
CXXFLAGS_INCLUDE = -I../../libsys -I../../kernel
CXXFLAGS_DEFAULT += $(CXXFLAGS_INCLUDE)
# -----------------------------------------------------------------------------
# Globale Variablen und Standard-Rezepte einbinden
include ../../tools/common.mk
# --------------------------------------------------------------------------
# Default target
.DEFAULT_GOAL = all
all: $(BUILDDIR)/app.img
# -----------------------------------------------------------------------------
# Parameters & flags:
CXXFLAGS += $(CXXFLAGS_INCLUDE)
# Enable 16-byte compare-and-exchange instruction for debugging purposes (stack alignment)
CXXFLAGS += -mcx16
LDLIBS += -L../../libsys/$(BUILDDIR) -lsys
INITOBJ = ../$(BUILDDIR)/init.o
# --------------------------------------------------------------------------
# Linked applications
$(BUILDDIR)/app: $(INITOBJ) $(ASM_OBJECTS) $(CC_OBJECTS) $(LINKER_SCRIPT) $(MAKEFILE_LIST)
@echo "LD $@"
@mkdir -p $(@D)
$(VERBOSE) $(CXX) $(CXXFLAGS) -Wl,-T $(LINKER_SCRIPT) -o $@ $(LDFLAGS) $(INITOBJ) $(ASM_OBJECTS) $(CC_OBJECTS) $(LDLIBS)
# --------------------------------------------------------------------------
# 'app.img' contains all section required for loading an application (flat binary)
$(BUILDDIR)/app.img: $(BUILDDIR)/app
@echo "OBJCOPY $@"
@if ! nm $< | grep "4000000 T start" >/dev/null 2>&1 ; then echo "Symbol 'start' is not first address" ; exit 1 ; fi
@if test \( ! \( -d $(@D) \) \) ;then mkdir -p $(@D);fi
$(VERBOSE) objcopy -O binary --set-section-flags .bss=alloc,load,contents $< $@
# --------------------------------------------------------------------------
# Include dependency files (generated gcc -MM)
ifneq ($(MAKECMDGOALS),clean)
-include $(DEP_FILES)
endif