From 4ba2b326284765e942044db13a7f0dae702bec93 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 28 Apr 2024 09:10:00 +0200
Subject: Adding upstream version 1.3.1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 lib/libxdp/Makefile | 167 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 167 insertions(+)
 create mode 100644 lib/libxdp/Makefile

(limited to 'lib/libxdp/Makefile')

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
-- 
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