#
# 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:
# lets default for 2.6 for planetlab builds
VER ?= 2.6
-# General values
+#--- 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 in_cksum.c
+IPFW_SRCS += radix.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 -DTRACE
+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 -I $(M)/include
+ipfw-cflags += -I $(M)/include_e
+ipfw-cflags += -I $(M)/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 := ipfw2_mod.o bsd_compat.o \
- in_cksum.o ip_dummynet.o ip_fw2.o ip_fw_pfil.o radix.o
- O_TARGET := ipfw_mod.o
+ obj-y := $(IPFW_SRCS:%.c=%.o)
+ O_TARGET := $(obj-m)
# xcflags-y is a temporary variable where we store build options
xcflags-y += -O1 -DLINUX_24
# We can override it from the command line, or let the system guess.
ifneq ($(shell echo $(VER)|grep '2.4'),)
- # The linux 2.4 version
+ # 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`/build
-
- # Guess the gcc include directory
- # The gcc version is in the last line returned by gcc -v
- # gcc version 4.3.2 (Debian 4.3.2-1.1)
- MYGCC_VER ?= $(shell gcc -v 2>&1 |tail -n 1 | cut -d " " -f 3)
- # We don't know the exact directory unde /usr/lib/gcc so we guess
+ 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 $(MYGCC_INCLUDE)")
# additional warning
- #WARN = -Wp,-MD,/home/luigi/ports-luigi/dummynet-branches/ipfw_mod/dummynet/.ipfw2_mod.o.d
- #WARN += -Iinclude -include include/linux/autoconf.h
-
WARN += -Wall -Wundef
WARN += -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing
WARN += -fno-common -Werror-implicit-function-declaration
WARN += -m32 -msoft-float # -mregparm=3
#WARN += -freg-struct-return -mpreferred-stack-boundary=2
WARN += -Wno-sign-compare
- WARN += -Wdeclaration-after-statement -Wno-pointer-sign
+ WARN += -Wdeclaration-after-statement
+ ifneq ($(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}
+ -isystem ${KERNELPATH}/include -isystem $(MYGCC_INCLUDE) \
+ ${ccflags-y}
# The Main target
all: mod24
-else
+else # !2.4 --
+
+ # This is the Makefile section for Linux 2.6.x including planetlab
+
ifeq ($(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
- # the latest kernel
+ # 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
# Required by kernel <= 2.6.22, ccflags-y is used on newer version
LINUX_VERSION_CODE := $(shell grep LINUX_VERSION_CODE $(KERNELPATH)/include/linux/version.h|cut -d " " -f3)
- ifeq ($(LINUX_VERSION_CODE),132630)
+ 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
+endif # !2.4
-#-- back to the common section of code
+#-- 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)
-# Original ipfw and dummynet sources + FreeBSD stuff,
-IPFW_SRCS = ip_fw2.c ip_dummynet.c ip_fw_pfil.c in_cksum.c
-IPFW_SRCS += radix.c
-# Module glue and functions missing in linux
-IPFW_SRCS += ipfw2_mod.c bsd_compat.c hashtable.c
-
# 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
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 += sys/proc.h sys/rwlock.h sys/socket.h sys/socketvar.h
EFILES += sys/sysctl.h sys/time.h sys/ucred.h
-M ?= $(shell pwd)
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) )
-endif # !openwrt
+#--- some other targets for testing purposes
test_radix: test_radix.o radix.o
-test_radix: CFLAGS=-Wall -Werror -O1
+test_radix: CFLAGS=-Wall -Werror -O2
git://git.onelab.eu / ipfw.git / blobdiff