diff options
Diffstat (limited to 'lib/libxdp/Makefile')
| -rw-r--r-- | lib/libxdp/Makefile | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/lib/libxdp/Makefile b/lib/libxdp/Makefile new file mode 100644 index 0000000..431932a --- /dev/null +++ b/lib/libxdp/Makefile @@ -0,0 +1,167 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) + +LIB_DIR = .. + +include libxdp.mk +include $(LIB_DIR)/defines.mk + +OBJDIR ?= . +SHARED_OBJDIR := $(OBJDIR)/sharedobjs +STATIC_OBJDIR := $(OBJDIR)/staticobjs +OBJS := libxdp.o xsk.o +XDP_OBJS := xdp-dispatcher.o xsk_def_xdp_prog.o xsk_def_xdp_prog_5.3.o +EMBEDDED_XDP_OBJS := $(addsuffix .embed.o,$(basename $(XDP_OBJS))) +SHARED_OBJS := $(addprefix $(SHARED_OBJDIR)/,$(OBJS)) +STATIC_OBJS := $(addprefix $(STATIC_OBJDIR)/,$(OBJS)) $(EMBEDDED_XDP_OBJS) +STATIC_LIBS := $(OBJDIR)/libxdp.a +MAN_PAGE := libxdp.3 +MAN_OBJ := ${MAN_PAGE:.3=.man} +MAN_FILES := $(MAN_PAGE) +TEST_DIR := tests + +SHARED_CFLAGS += -fPIC -DSHARED +LIB_HEADERS := $(wildcard $(HEADER_DIR)/xdp/*.h) +BPF_HEADERS := $(wildcard $(HEADER_DIR)/bpf/*.h) $(wildcard $(HEADER_DIR)/xdp/*.h) +EXTRA_LIB_DEPS := $(OBJECT_LIBBPF) $(LIBMK) $(LIB_OBJS) $(LIB_HEADERS) compat.h libxdp_internal.h xsk_def_xdp_prog.h bpf_instr.h +PC_FILE := $(OBJDIR)/libxdp.pc +TEMPLATED_SOURCES := xdp-dispatcher.c + +CFLAGS += -I$(HEADER_DIR) +BPF_CFLAGS += -I$(HEADER_DIR) + + +ifndef BUILD_STATIC_ONLY +SHARED_LIBS := $(OBJDIR)/libxdp.so \ + $(OBJDIR)/libxdp.so.$(LIBXDP_MAJOR_VERSION) \ + $(OBJDIR)/libxdp.so.$(LIBXDP_VERSION) +VERSION_SCRIPT := libxdp.map +CHECK_RULES := check_abi +endif + +all: $(STATIC_LIBS) $(SHARED_LIBS) $(XDP_OBJS) $(PC_FILE) check man + +clean: + $(Q)rm -f $(STATIC_LIBS) $(STATIC_OBJS) $(SHARED_LIBS) $(SHARED_OBJS) $(XDP_OBJS) $(PC_FILE) $(MAN_OBJ) $(TEMPLATED_SOURCES) + $(Q)for d in $(SHARED_OBJDIR) $(STATIC_OBJDIR); do \ + [ -d "$$d" ] && rmdir "$$d"; done || true + $(Q)$(MAKE) -C $(TEST_DIR) clean + +install: all + $(Q)install -d -m 0755 $(DESTDIR)$(HDRDIR) + $(Q)install -d -m 0755 $(DESTDIR)$(LIBDIR) + $(Q)install -d -m 0755 $(DESTDIR)$(LIBDIR)/pkgconfig + $(Q)install -d -m 0755 $(DESTDIR)$(BPF_OBJECT_DIR) + $(Q)install -m 0644 $(LIB_HEADERS) $(DESTDIR)$(HDRDIR)/ + $(Q)install -m 0644 $(PC_FILE) $(DESTDIR)$(LIBDIR)/pkgconfig/ + $(Q)cp -fpR $(SHARED_LIBS) $(STATIC_LIBS) $(DESTDIR)$(LIBDIR) + $(Q)install -m 0755 $(XDP_OBJS) $(DESTDIR)$(BPF_OBJECT_DIR) + $(if $(MAN_FILES),$(Q)install -m 0755 -d $(DESTDIR)$(MANDIR)/man3) + $(if $(MAN_FILES),$(Q)install -m 0644 $(MAN_FILES) $(DESTDIR)$(MANDIR)/man3) + + +$(OBJDIR)/libxdp.a: $(STATIC_OBJS) + $(QUIET_LINK)$(AR) rcs $@ $^ + +$(OBJDIR)/libxdp.so: $(OBJDIR)/libxdp.so.$(LIBXDP_MAJOR_VERSION) + $(Q)ln -sf $(^F) $@ + +$(OBJDIR)/libxdp.so.$(LIBXDP_MAJOR_VERSION): $(OBJDIR)/libxdp.so.$(LIBXDP_VERSION) + $(Q)ln -sf $(^F) $@ + +$(OBJDIR)/libxdp.so.$(LIBXDP_VERSION): $(SHARED_OBJS) + $(QUIET_LINK)$(CC) -shared -Wl,-soname,libxdp.so.$(LIBXDP_MAJOR_VERSION) \ + -Wl,--version-script=$(VERSION_SCRIPT) \ + $^ $(LDFLAGS) $(LDLIBS) -o $@ + +$(OBJDIR)/libxdp.pc: + $(Q)sed -e "s|@PREFIX@|$(PREFIX)|" \ + -e "s|@LIBDIR@|$(LIBDIR)|" \ + -e "s|@VERSION@|$(TOOLS_VERSION)|" \ + < libxdp.pc.template > $@ + +$(STATIC_OBJDIR): + $(Q)mkdir -p $(STATIC_OBJDIR) + +$(SHARED_OBJDIR): + $(Q)mkdir -p $(SHARED_OBJDIR) + +$(STATIC_OBJDIR)/%.o: %.c $(EXTRA_LIB_DEPS) | $(STATIC_OBJDIR) + $(QUIET_CC)$(CC) $(CFLAGS) $(CPPFLAGS) -D LIBXDP_STATIC=1 -Wall -I../../headers -c $< -o $@ + +$(SHARED_OBJDIR)/%.o: %.c $(EXTRA_LIB_DEPS) | $(SHARED_OBJDIR) + $(QUIET_CC)$(CC) $(CFLAGS) $(CPPFLAGS) $(SHARED_CFLAGS) -Wall -I../../headers -c $< -o $@ + +XDP_IN_SHARED := $(SHARED_OBJDIR)/libxdp.o $(SHARED_OBJDIR)/xsk.o + +GLOBAL_SYM_COUNT = $(shell readelf -s --wide $(XDP_IN_SHARED) | \ + cut -d "@" -f1 | sed 's/_v[0-9]_[0-9]_[0-9].*//' | \ + sed 's/\[.*\]//' | \ + awk '/GLOBAL/ && /DEFAULT/ && !/UND/ {print $$NF}' | \ + sort -u | wc -l) +VERSIONED_SYM_COUNT = $(shell readelf --dyn-syms --wide $(OBJDIR)/libxdp.so | \ + grep -Eo '[^ ]+@LIBXDP_' | cut -d@ -f1 | sort -u | wc -l) + +check: $(CHECK_RULES) + +check_abi: $(OBJDIR)/libxdp.so + @if [ "$(GLOBAL_SYM_COUNT)" != "$(VERSIONED_SYM_COUNT)" ]; then \ + echo "Warning: Num of global symbols in $(XDP_IN_SHARED)" \ + "($(GLOBAL_SYM_COUNT)) does NOT match with num of" \ + "versioned symbols in $^ ($(VERSIONED_SYM_COUNT))." \ + "Please make sure all symbols are" \ + "versioned in $(VERSION_SCRIPT)." >&2; \ + readelf -s --wide $(XDP_IN_SHARED) | \ + cut -d "@" -f1 | sed 's/_v[0-9]_[0-9]_[0-9].*//' | \ + sed 's/\[.*\]//' | \ + awk '/GLOBAL/ && /DEFAULT/ && !/UND/ {print $$NF}'| \ + sort -u > $(OUTPUT)libxdp_global_syms.tmp; \ + readelf --dyn-syms --wide $(OUTPUT)libxdp.so | \ + grep -Eo '[^ ]+@LIBXDP_' | cut -d@ -f1 | \ + sort -u > $(OUTPUT)libxdp_versioned_syms.tmp; \ + diff -u $(OUTPUT)libxdp_global_syms.tmp \ + $(OUTPUT)libxdp_versioned_syms.tmp; \ + rm $(OUTPUT)libxdp_global_syms.tmp \ + $(OUTPUT)libxdp_versioned_syms.tmp; \ + exit 1; \ + fi + + +$(TEMPLATED_SOURCES): %.c: %.c.in Makefile + $(QUIET_M4)$(M4) $(DEFINES) $< > $@ || ( ret=$$?; rm -f $@; exit $$ret ) + +$(EMBEDDED_XDP_OBJS): %.embed.o: %.o + $(QUIET_GEN)$(LD) -r -b binary -o $@ -z noexecstack --format=binary $< + $(Q)$(OBJCOPY) --rename-section .data=.rodata,alloc,load,readonly,data,contents $@ + +$(XDP_OBJS): %.o: %.c $(BPF_HEADERS) $(LIBMK) + $(QUIET_CLANG)$(CLANG) -S \ + -target $(BPF_TARGET) \ + -D __BPF_TRACING__ \ + $(BPF_CFLAGS) \ + -Wall \ + -Wno-unused-value \ + -Wno-pointer-sign \ + -Wno-compare-distinct-pointer-types \ + -Werror \ + -O2 -emit-llvm -c -g -o ${@:.o=.ll} $< + $(QUIET_LLC)$(LLC) -march=$(BPF_TARGET) -filetype=obj -o $@ ${@:.o=.ll} + +.PHONY: man +ifeq ($(EMACS),) +man: ; +else +man: $(MAN_PAGE) +$(MAN_OBJ): README.org $(LIBMK) + $(Q)$(EMACS) -Q --batch --find-file $< --eval "(progn (require 'ox-man)(org-man-export-to-man))" + $(Q)touch -r $< $@ + +$(MAN_PAGE): $(MAN_OBJ) $(LIBMK) + $(QUIET_GEN)MODDATE=$$(git log -1 --pretty="format:%cI" README.org 2>/dev/null); \ + [ "$$?" -eq "0" ] && DATE=$$(date '+%B %_d, %Y' -d "$$MODDATE") || DATE=$$(date '+%B %_d, %Y'); \ + sed -e "1 s/DATE/$$DATE/" -e "1 s/VERSION/v$(TOOLS_VERSION)/" -e '1,5 s/^.SH "\([^"]\+\) - \([^"]\+\)"/.SH "NAME"\n\1 \\- \2\n.SH "SYNOPSIS"/' $< > $@ + +endif + +.PHONY: test +test: all + $(Q)$(MAKE) -C $(TEST_DIR) run |