#
# by Frank Rysanek <rysanek@fccps.cz>
#
# Based on the source code of ioperm.c by Marcel Telka <marcel@telka.sk> 
#   - thanks a million :-)
#

# See also my_names.h
# Note that after changing the driver name, you also have
# to rename $(DRVNAME).c manually in this directory :-)
DRVNAME = even

INCLUDES = -I/usr/x86_64-w64-mingw32/sys-root/mingw/include/ddk
INCLUDES += 


# We could in fact just add -DEVEN_DRIVER_NAME=\"$(DRVNAME)\" to CFLAGS,
# but we'd have to be careful to "make clean" after changing 
# the driver name here in the makefile...
#CFLAGS = -Wall $(INCLUDES) -DEVEN_DRIVER_NAME=\"$(DRVNAME)\"
CFLAGS = -Wall -Wpedantic -DNDEBUG $(INCLUDES)

ifneq ($(RELEASE),)
VERSION = $(shell git describe --tags --always --dirty)
CFLAGS += -DEVEN_VERSION=\"$(VERSION)\"
endif

# Kernel-mode libs: 
#   libntoskrnl = basic kernel-mode environment
#   libhal = WRITE_PORT_UCHAR et al.
#KRNLIBS = -lntoskrnl -lhal
KRNLIBS = -lntoskrnl

CC = x86_64-w64-mingw32-gcc
DLLTOOL = x86_64-w64-mingw32-dlltool
STRIP = x86_64-w64-mingw32-strip
#STRIP = true

all: $(DRVNAME).sys

# Dependencies on header files:
$(DRVNAME).sys: even_names.h even_ioctl.h even_peb.h utlist.h

# This shall get appended to the built-in set of suffixes supported:
.SUFFIXES: .sys .exe
# Otherwise the custom inference rules below wouldn't ever kick in.

# This is implicit, no need to define this explicitly:
#.c.o:
#	$(CC) $(CFLAGS) -c -o $@ $<

# This inference rule allows us to turn an .o into a .sys without
# much hassle, implicitly.
# The downside is, that you cannot potentially add further object files
# to get linked into the .sys driver (such as, some custom ASM routines).
# Oh wait, maybe you can... try adding your .o after the last $(CC) in the rule...
.o.sys:
	$(CC)	-Wl,--base-file,$*.base \
	-Wl,--entry,DriverEntry@8 \
	-nostartfiles -nostdlib \
	-o junk.tmp \
	$*.o \
	$(KRNLIBS)
	-rm -f junk.tmp
	$(DLLTOOL) --dllname $*.sys \
	--base-file $*.base --output-exp $*.exp
	$(CC) -Wl,--subsystem,native \
	-Wl,--image-base,0x10000 \
	-Wl,--file-alignment,0x1000 \
	-Wl,--section-alignment,0x1000 \
	-Wl,--entry,DriverEntry@8 \
	-Wl,$*.exp \
	-mdll -nostartfiles -nostdlib \
	-o $*.sys \
	$*.o \
	$(KRNLIBS)
	$(STRIP) $*.sys

JUNK = *.base *.exp *.o *~ junk.tmp

clean:
	rm -f $(JUNK) *.sys

semiclean:
	rm -f $(JUNK)