kaffa/XDP-Firewall
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Add support for linking LibBPF and LibXDP object files inside of Makefile if LIBBPF_LIBXDP_STATIC is 1.

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This commit is contained in:
Christian Deacon
2025-02-22 10:56:49 -05:00
parent 73cf82303e
commit 179cbeab6a
2 changed files with 24 additions and 2 deletions
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2
.github/workflows/build.yml vendored
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@@ -28,7 +28,7 @@ jobs:
- name: Make and install LibXDP - name: Make and install LibXDP
run: make libxdp run: make libxdp
- name: Make project - name: Make project
run: make run: LIBBPF_LIBXDP_STATIC=1 make
- name: Install project - name: Install project
run: sudo make install run: sudo make install
- name: Store build artifacts - name: Store build artifacts

24
Makefile
View File

@@ -1,5 +1,7 @@
CC = clang CC = clang
LIBBPF_LIBXDP_STATIC ?= 0
# Top-level directories. # Top-level directories.
BUILD_DIR = build BUILD_DIR = build
SRC_DIR = src SRC_DIR = src
@@ -24,6 +26,18 @@ LIBBPF_DIR = $(XDP_TOOLS_DIR)/lib/libbpf
LIBBPF_SRC = $(LIBBPF_DIR)/src LIBBPF_SRC = $(LIBBPF_DIR)/src
# LibBPF objects.
LIBBPF_OBJS = $(LIBBPF_SRC)/staticobjs/bpf_prog_linfo.o $(LIBBPF_SRC)/staticobjs/bpf.o $(LIBBPF_SRC)/staticobjs/btf_dump.o
LIBBPF_OBJS += $(LIBBPF_SRC)/staticobjs/btf.o $(LIBBPF_SRC)/staticobjs/gen_loader.o $(LIBBPF_SRC)/staticobjs/hashmap.o
LIBBPF_OBJS += $(LIBBPF_SRC)/staticobjs/libbpf_errno.o $(LIBBPF_SRC)/staticobjs/libbpf_probes.o $(LIBBPF_SRC)/staticobjs/libbpf.o
LIBBPF_OBJS += $(LIBBPF_SRC)/staticobjs/linker.o $(LIBBPF_SRC)/staticobjs/netlink.o $(LIBBPF_SRC)/staticobjs/nlattr.o
LIBBPF_OBJS += $(LIBBPF_SRC)/staticobjs/relo_core.o $(LIBBPF_SRC)/staticobjs/ringbuf.o $(LIBBPF_SRC)/staticobjs/str_error.o
LIBBPF_OBJS += $(LIBBPF_SRC)/staticobjs/strset.o $(LIBBPF_SRC)/staticobjs/usdt.o $(LIBBPF_SRC)/staticobjs/zip.o
# LibXDP objects.
# To Do: Figure out why static objects produces errors relating to unreferenced functions with dispatcher.
LIBXDP_OBJS = $(LIBXDP_DIR)/sharedobjs/xsk.o $(LIBXDP_DIR)/sharedobjs/libxdp.o
# Loader directories. # Loader directories.
LOADER_SRC = loader.c LOADER_SRC = loader.c
LOADER_OUT = xdpfw LOADER_OUT = xdpfw
@@ -43,6 +57,10 @@ LOADER_UTILS_HELPERS_OBJ = helpers.o
# Loader objects. # Loader objects.
LOADER_OBJS = $(BUILD_LOADER_DIR)/$(LOADER_UTILS_CONFIG_OBJ) $(BUILD_LOADER_DIR)/$(LOADER_UTILS_CMDLINE_OBJ) $(BUILD_LOADER_DIR)/$(LOADER_UTILS_HELPERS_OBJ) LOADER_OBJS = $(BUILD_LOADER_DIR)/$(LOADER_UTILS_CONFIG_OBJ) $(BUILD_LOADER_DIR)/$(LOADER_UTILS_CMDLINE_OBJ) $(BUILD_LOADER_DIR)/$(LOADER_UTILS_HELPERS_OBJ)
ifeq ($(LIBBPF_LIBXDP_STATIC), 1)
LOADER_OBJS := $(LIBBPF_OBJS) $(LIBXDP_OBJS) $(LOADER_OBJS)
endif
# XDP directories. # XDP directories.
XDP_SRC = prog.c XDP_SRC = prog.c
XDP_OBJ = xdp_prog.o XDP_OBJ = xdp_prog.o
@@ -61,7 +79,11 @@ INCS = -I $(SRC_DIR) -I $(LIBBPF_SRC) -I /usr/include -I /usr/local/include
# Flags. # Flags.
FLAGS = -O2 -g FLAGS = -O2 -g
FLAGS_LOADER = -lconfig -lelf -lz -lbpf -lxdp FLAGS_LOADER = -lconfig -lelf -lz
ifeq ($(LIBBPF_LIBXDP_STATIC), 0)
FLAGS_LOADER += -lbpf -lxdp
endif
# All chains. # All chains.
all: loader xdp all: loader xdp