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|
CC := gcc
ifeq ($(PROD),1)
CFLAGS := -std=c99 -O2 # production flags
else
CFLAGS := -std=c99 -Wall -Wextra -Wpedantic -g -DDEBUG # debug flags
endif
# compile as static for the virtual machine
ifeq (vm,$(filter vm,$(MAKECMDGOALS)))
SFLAGS += -static
endif
SRCD := src
OBJD := obj
BIND := bin
DEPD := include
TSTD := tests
CFLAGS += -I$(SRCD)/$(DEPD)
# all the subdirs of the source dir (except DEPD and TSTD)
DIRS := $(filter-out $(DEPD) $(TSTD),$(shell find $(SRCD) -mindepth 1 -maxdepth 1 -type d -exec basename {} \;))
FILES = $(shell find $(SRCD)/$(SUBD) -type f)
CSRCS = $(filter %.c, $(FILES))
COBJS = $(CSRCS:$(SRCD)/%.c=$(OBJD)/%.o)
# get deps
CDEPS = $(COBJS:%.o=%.d)
-include $(CDEPS)
MODULE_TARGET := keylogger.ko
KERNEL_NAME := kernel-$(shell uname -r)
INITFS_NAME := initramfs.img
export
.PHONY: all clean $(DIRS) $(TSTD) $(DEPD)
all: $(DIRS) $(DEPD) $(TSTD)
clean:
rm -rf $(BIND)
rm -rf $(OBJD)
$(DIRS):
$(eval TARGET := $($(shell echo $@ | tr 'a-z' 'A-Z')_TARGET))
$(MAKE) $(BIND)/$(if $(TARGET),$(TARGET),$@) SUBD=$@
$(DEPD) $(TSTD): $(DEPD)
$(MAKE) $(BIND)/$@/ SUBD=$@ SINGLE_OBJ=1
ifeq ($(SINGLE_OBJ),1)
# generic single object build
$(BIND)/%: $(OBJD)/%.o
mkdir -p $(dir $@)
$(CC) $(CFLAGS) $(SFLAGS) $^ -o $@
else
# generic build
$(BIND)/%: $(COBJS)
mkdir -p $(dir $@)
$(CC) $(CFLAGS) $(SFLAGS) $^ -o $@
endif
# generic compile to obj
$(OBJD)/%.o: $(SRCD)/%.c
mkdir -p $(dir $@)
$(CC) $(CFLAGS) $(SFLAGS) -MMD -MF $(@:%.o=%.d) -c $< -o $@
# generic build and copy dir
$(BIND)/%/: $(FILES) $(CSRCS:$(SRCD)/%.c=$(BIND)/%)
mkdir -p $(dir $@)
find $(@:$(BIND)/%=$(SRCD)/%) -type f ! -name "*.c" ! -name "*.h" -exec cp {} $@ \;
# generic build a module
$(BIND)/%.ko: $(FILES)
mkdir -p $(dir $@); mkdir -p $(OBJD)/$(SUBD)
make -C $(SRCD)/$(SUBD) name=$(@:$(BIND)/%.ko=%)
mv $(SRCD)/$(SUBD)/*.o $(OBJD)/$(SUBD)
mv $(SRCD)/$(SUBD)/*.ko $@
make -C $(SRCD)/$(SUBD) clean
# VM things
vm: vm.sh $(BIND)/$(INITFS_NAME) $(BIND)/$(KERNEL_NAME)
./vm.sh run
$(BIND)/$(INITFS_NAME): $(SRCD)/initramfs-init.sh module $(TSTD)
./vm.sh initramfs $@ $<
$(BIND)/$(KERNEL_NAME):
./vm.sh kernel $@
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