CC = gcc
CFLAGS = -O2 -Wall
LEX=flex
# Note: LFLAGS might not be needed... YMWV
LFLAGS= -l
# You might want to enable this define depending on your flex. See parsesym.c
#YYTEXT_PTR= -DYYTEXT_PTR

BINDIR = /sbin
KSYMS = /usr/src/linux/kernel/ksyms.c
TESTDEFS = -D__KERNEL__ -D__GENKSYMS__ -DCONFIG_MODVERSIONS -I/usr/src/linux/include

all: genksyms

genksyms: symlex.o parsesym.o
	$(CC) $(CFLAGS) -o genksyms symlex.o parsesym.o

symlex.o: symlex.c
	$(CC) -c -O2 $(YYTEXT_PTR) symlex.c

symlex.c: symlex.l
	$(LEX) $(LFLAGS) symlex.l
	mv lex.yy.c symlex.c

symlex.o parsesym.o: lexsyms.h

parsesym.o: crc32.tab

crc32.tab: makecrc32
	./makecrc32 > crc32.tab

install-binaries: genksyms
	install -c -s genksyms $(BINDIR)

install-docs:
	install -m 644 genksyms.8 /usr/man/man8

install: install-binaries install-docs

clean:
	rm -f *.o crc32.tab symlex.c
	rm -f makecrc32 genksyms

test: genksyms
	gcc -E $(TESTDEFS) $(KSYMS) | ./genksyms VERSIONHEADERS
	@echo "If the test failed, check LFLAGS and/or YYTEXT_PTR in the Makefile"

testall: genksyms
	gcc -E $(TESTDEFS) /usr/src/linux/kernel/*.c | ./genksyms VERSIONHEADERS

dump: genksyms
	gcc -E $(TESTDEFS) $(KSYMS) | ./genksyms -D > check_dump

debug: genksyms
	gcc -E $(TESTDEFS) $(KSYMS) | ./genksyms -dd > check_debug

input:
	gcc -E $(TESTDEFS) $(KSYMS) > check_input