--- /dev/null
+#
+# $Id: Makefile 4657 2010-01-04 11:20:53Z marta $
+#
+# gnu Makefile to build linux module for ipfw+dummynet.
+#
+# The defaults are set to build without modifications on PlanetLab
+# and possibly 2.6 versions.
+
+# Some variables need to have specific names, because they are used
+# by the build infrastructure on Linux and OpenWrt. They are:
+#
+# ccflags-y additional $(CC) flags
+# M used by Kbuild, we must set it to `pwd`
+# obj-m list of .o modules to build
+# $(MOD)-y for each $MOD in obj-m, the list of objects
+# obj-y same as above, for openwrt
+# O_TARGET the link target, for openwrt
+# EXTRA_CFLAGS as the name says... in openwrt
+# EXTRA_CFLAGS is used in 2.6.22 module kernel compilation too
+# KERNELPATH the path to the kernel sources or headers
+#
+# Not sure about this (the name might be reserved)
+# ipfw-cflags our flags for building the module
+#
+# Other variables are only private and can be renamed. They include:
+#
+# VER linux version we are building for (2.4 2.6 or openwrt)
+#---
+
+$(warning including dummynet/Makefile)
+
+# lets default for 2.6 for planetlab builds
+VER ?= 2.6
+
+#--- General values for all types of build ---
+# obj-m is the target module
+obj-m := ipfw_mod.o
+
+#-- the list of source files. IPFW_SRCS is our own name.
+# Original ipfw and dummynet sources + FreeBSD stuff,
+IPFW_SRCS := ip_fw2.c ip_dummynet.c ip_fw_pfil.c ip_fw_sockopt.c
+IPFW_SRCS += ip_fw_dynamic.c ip_fw_table.c ip_fw_log.c
+IPFW_SRCS += radix.c in_cksum.c
+# Module glue and functions missing in linux
+IPFW_SRCS += ipfw2_mod.c bsd_compat.c
+
+# generic cflags used on all systems
+#ipfw-cflags += -DIPFW_HASHTABLES
+ipfw-cflags += -DIPFIREWALL_DEFAULT_TO_ACCEPT
+# _BSD_SOURCE enables __FAVOR_BSD (udp/tcp bsd structs instead of posix)
+ipfw-cflags += -D_BSD_SOURCE
+ipfw-cflags += -DKERNEL_MODULE # build linux kernel module
+# the two header trees for empty and override files
+ipfw-cflags += -I $(M)/include_e
+ipfw-cflags += -I $(M)/include
+# XXX eventually ../dummynet/include will go away
+ipfw-cflags += -I $(M)/../dummynet/include
+ipfw-cflags += -include $(M)/../glue.h # headers
+ipfw-cflags += -include $(M)/missing.h # headers
+
+$(warning "---- Building dummynet kernel module for Version $(VER)")
+
+# We have three sections for OpenWrt, Linux 2.4 and Linux 2.6
+
+ifeq ($(VER),openwrt)
+ #--- The Makefile section for openwrt ---
+ # We do not include a dependency on include_e as it is called
+ # by Makefile.openwrt in Build/Prepare
+ M=.
+ obj-y := $(IPFW_SRCS:%.c=%.o)
+ O_TARGET := $(obj-m)
+
+ # xcflags-y is a temporary variable where we store build options
+ xcflags-y += -O1 -DLINUX_24
+ xcflags-y += -g
+
+ EXTRA_CFLAGS := $(xcflags-y) $(ipfw-cflags)
+
+ # we should not export anything
+ #export-objs := ipfw2_mod.o
+-include $(TOPDIR)/Rules.make
+
+else # !openwrt, below we do linux builds for 2.4 and 2.6
+
+ # KERNELPATH is where the kernel headers reside. On PlanetLab
+ # it is set already by the build system.
+ # We can override it from the command line, or let the system guess.
+
+ifneq ($(shell echo $(VER)|grep '2.4'),)
+ # Makefile section for the linux 2.4 version
+ # tested on linux-2.4.35.4, does not work with 2.4.37
+ #
+ # guess the kernel path -- or is it under /lib/modules ?
+ KERNELPATH ?= /usr/src/`uname -r`
+
+ # We need to figure out the gcc include directory, if not
+ # set by the user through MYGCC_INCLUDE
+ # Find compiler version (3rd field in last line returned by gcc -v)
+ # e.g. gcc version 4.3.2 (Debian 4.3.2-1.1)
+ MYGCC_VER ?= $(shell $(CC) -v 2>&1 |tail -n 1 | cut -d " " -f 3)
+ # We don't know the exact directory under /usr/lib/gcc so we guess
+ MYGCC_INCLUDE ?= $(shell echo /usr/lib/gcc/*/$(MYGCC_VER) | cut -d " " -f 1)/include
+ $(warning "---- gcc includes guessed to $(MYGCC_INCLUDE)")
+
+ # additional warning
+ WARN += -Wall -Wundef
+ WARN += -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing
+ WARN += -fno-common -Werror-implicit-function-declaration
+ # WARN += -O2 -fno-stack-protector -m32 -msoft-float -mregparm=3
+ # -mregparm=3 gives a printk error
+ WARN += -m32 -msoft-float # -mregparm=3
+ #WARN += -freg-struct-return -mpreferred-stack-boundary=2
+ WARN += -Wno-sign-compare
+ WARN += -Wdeclaration-after-statement
+ ifneq ($(MYGCC_VER),3.4.6)
+ WARN += -Wno-pointer-sign
+ endif
+
+ ccflags-y += -O1 -DLINUX_24
+ CFLAGS = -DMODULE -D__KERNEL__ -nostdinc \
+ -isystem ${KERNELPATH}/include -isystem $(MYGCC_INCLUDE) \
+ ${ccflags-y}
+ # The Main target
+all: mod24
+
+else # !2.4 --
+
+ # This is the Makefile section for Linux 2.6.x including planetlab
+
+ifeq ($(IPFW_PLANETLAB),1)
+ $(warning "---- Building for PlanetLab")
+ ipfw-cflags += -DIPFW_PLANETLAB # PlanetLab compilation
+endif
+ # if not set, use the version from the installed system
+ KERNELPATH ?= /lib/modules/`uname -r`/build
+ # Otherwise, if you have kernel sources, try something like this:
+ #KERNELPATH = /usr/src/linux-2.6.22
+ $(warning "---- Building Version 2.6 $(VER) in $(KERNELPATH)")
+ WARN := -O1 -Wall -Werror -DDEBUG_SPINLOCK -DDEBUG_MUTEXES
+ # The main target
+
+ # Required by kernel <= 2.6.22, ccflags-y is used on newer version
+ LINUX_VERSION_CODE := $(shell grep LINUX_VERSION_CODE $(KERNELPATH)/include/linux/version.h|cut -d " " -f3)
+ ifeq ($(shell if [ -z $(LINUX_VERSION_CODE) ] ; then echo "true"; fi),true)
+ $(warning "---- Perhaps you miss a (cd $(KERNELPATH); make oldconfig; make prepare; make scripts)");
+ endif
+ ifeq ($(shell if [ $(LINUX_VERSION_CODE) -le 132630 ] ; then echo "true"; fi),true)
+ EXTRA_CFLAGS += $(ccflags-y)
+ endif
+
+all: include_e
+ $(MAKE) -C $(KERNELPATH) V=1 M=`pwd` modules
+endif # !2.4
+
+#-- back to the common section of code for Linux 2.4 and 2.6
+
+# the list of objects used to build the module
+ipfw_mod-y = $(IPFW_SRCS:%.c=%.o)
+
+# additional $(CC) flags
+ccflags-y += $(WARN)
+ccflags-y += $(ipfw-cflags)
+# if we really want debug symbols...
+ccflags-y += -g
+
+mod24: include_e $(obj-m)
+
+$(obj-m): $(ipfw_mod-y)
+ $(LD) $(LDFLAGS) -m elf_i386 -r -o $@ $^
+
+# M is the current directory, used in recursive builds
+# so we allow it to be overridden
+M ?= $(shell pwd)
+endif # !openwrt
+
+#--- various common targets
+clean:
+ -rm -f *.o *.ko Module.symvers *.mod.c
+ -rm -rf include_e
+
+distclean: clean
+ -rm -f .*cmd modules.order opt_*
+ -rm -rf .tmp_versions include_e
+ -rm -rf .*.o.d
+
+# support to create empty dirs and files in include_e/
+# EDIRS is the list of directories, EFILES is the list of files.
+
+EDIRS= altq arpa machine net netinet netinet6 sys
+
+EFILES += opt_inet6.h opt_ipfw.h opt_ipsec.h opt_mpath.h
+EFILES += opt_mbuf_stress_test.h opt_param.h
+
+EFILES += altq/if_altq.h
+EFILES += arpa/inet.h
+EFILES += machine/in_cksum.h
+EFILES += net/ethernet.h net/netisr.h net/pf_mtag.h
+EFILES += net/bpf.h net/if_types.h
+EFILES += net/vnet.h
+
+EFILES += netinet/ether.h netinet/icmp6.h netinet/if_ether.h
+EFILES += netinet/in.h netinet/in_pcb.h netinet/in_var.h
+EFILES += netinet/in_systm.h
+EFILES += netinet/ip_carp.h netinet/ip_var.h netinet/pim.h
+EFILES += netinet/sctp.h netinet/tcp_timer.h netinet/tcpip.h
+EFILES += netinet/udp_var.h
+
+EFILES += netinet6/ip6_var.h
+
+EFILES += sys/_lock.h sys/_rwlock.h sys/_mutex.h sys/jail.h
+EFILES += sys/condvar.h sys/eventhandler.h sys/domain.h
+EFILES += sys/limits.h sys/lock.h sys/mutex.h sys/priv.h
+EFILES += sys/proc.h sys/rwlock.h sys/socket.h sys/socketvar.h
+EFILES += sys/sysctl.h sys/time.h sys/ucred.h
+
+include_e:
+ echo "running in $M"
+ -@rm -rf $(M)/include_e opt_*
+ -@mkdir -p $(M)/include_e
+ -@(cd $(M)/include_e; mkdir -p $(EDIRS); touch $(EFILES) )
+
+
+#--- some other targets for testing purposes
+test_radix: test_radix.o radix.o
+test_lookup: ip_fw_lookup.o
+test_radix test_lookup: CFLAGS=-Wall -Werror -O1
git://git.onelab.eu / ipfw.git / blobdiff