Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) # SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) # Most of this file is copied from tools/lib/traceevent/Makefile
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4) RM ?= rm
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5) srctree = $(abs_srctree)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) VERSION_SCRIPT := libbpf.map
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) LIBBPF_VERSION := $(shell \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) 	grep -oE '^LIBBPF_([0-9.]+)' $(VERSION_SCRIPT) | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) 	sort -rV | head -n1 | cut -d'_' -f2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) LIBBPF_MAJOR_VERSION := $(firstword $(subst ., ,$(LIBBPF_VERSION)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) MAKEFLAGS += --no-print-directory
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) # This will work when bpf is built in tools env. where srctree
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) # isn't set and when invoked from selftests build, where srctree
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) # is a ".". building_out_of_srctree is undefined for in srctree
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) # builds
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) ifndef building_out_of_srctree
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) srctree := $(patsubst %/,%,$(dir $(CURDIR)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) srctree := $(patsubst %/,%,$(dir $(srctree)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) srctree := $(patsubst %/,%,$(dir $(srctree)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) #$(info Determined 'srctree' to be $(srctree))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) INSTALL = install
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) # Use DESTDIR for installing into a different root directory.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) # This is useful for building a package. The program will be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) # installed in this directory as if it was the root directory.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) # Then the build tool can move it later.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) DESTDIR ?=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) include $(srctree)/tools/scripts/Makefile.arch
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) ifeq ($(LP64), 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38)   libdir_relative = lib64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40)   libdir_relative = lib
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) prefix ?= /usr/local
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) libdir = $(prefix)/$(libdir_relative)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) man_dir = $(prefix)/share/man
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) man_dir_SQ = '$(subst ','\'',$(man_dir))'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) export man_dir man_dir_SQ INSTALL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) export DESTDIR DESTDIR_SQ
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) include $(srctree)/tools/scripts/Makefile.include
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) # copy a bit from Linux kbuild
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) ifeq ("$(origin V)", "command line")
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56)   VERBOSE = $(V)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) ifndef VERBOSE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59)   VERBOSE = 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) FEATURE_USER = .libbpf
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) FEATURE_TESTS = libelf zlib bpf
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) FEATURE_DISPLAY = libelf zlib bpf
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) INCLUDES = -I. -I$(srctree)/tools/include -I$(srctree)/tools/include/uapi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) FEATURE_CHECK_CFLAGS-bpf = $(INCLUDES)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) check_feat := 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) NON_CHECK_FEAT_TARGETS := clean TAGS tags cscope help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) ifdef MAKECMDGOALS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) ifeq ($(filter-out $(NON_CHECK_FEAT_TARGETS),$(MAKECMDGOALS)),)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73)   check_feat := 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) ifeq ($(check_feat),1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) ifeq ($(FEATURES_DUMP),)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) include $(srctree)/tools/build/Makefile.feature
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) include $(FEATURES_DUMP)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) export prefix libdir src obj
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) # Shell quotes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) libdir_SQ = $(subst ','\'',$(libdir))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) libdir_relative_SQ = $(subst ','\'',$(libdir_relative))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) OBJ		= $@
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) N		=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) LIB_TARGET	= libbpf.a libbpf.so.$(LIBBPF_VERSION)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) LIB_FILE	= libbpf.a libbpf.so*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) PC_FILE		= libbpf.pc
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) # Set compile option CFLAGS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) ifdef EXTRA_CFLAGS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)   CFLAGS := $(EXTRA_CFLAGS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)   CFLAGS := -g -O2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) # Append required CFLAGS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) override CFLAGS += $(EXTRA_WARNINGS) -Wno-switch-enum
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) override CFLAGS += -Werror -Wall
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) override CFLAGS += $(INCLUDES)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) override CFLAGS += -fvisibility=hidden
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) override CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) # flags specific for shared library
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) SHLIB_FLAGS := -DSHARED -fPIC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) ifeq ($(VERBOSE),1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116)   Q =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118)   Q = @
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) # Disable command line variables (CFLAGS) override from top
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) # level Makefile (perf), otherwise build Makefile will get
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) # the same command line setup.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) MAKEOVERRIDES=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) all:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) export srctree OUTPUT CC LD CFLAGS V
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) include $(srctree)/tools/build/Makefile.include
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) SHARED_OBJDIR	:= $(OUTPUT)sharedobjs/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) STATIC_OBJDIR	:= $(OUTPUT)staticobjs/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) BPF_IN_SHARED	:= $(SHARED_OBJDIR)libbpf-in.o
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) BPF_IN_STATIC	:= $(STATIC_OBJDIR)libbpf-in.o
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) BPF_HELPER_DEFS	:= $(OUTPUT)bpf_helper_defs.h
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) LIB_TARGET	:= $(addprefix $(OUTPUT),$(LIB_TARGET))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) LIB_FILE	:= $(addprefix $(OUTPUT),$(LIB_FILE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) PC_FILE		:= $(addprefix $(OUTPUT),$(PC_FILE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) TAGS_PROG := $(if $(shell which etags 2>/dev/null),etags,ctags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) GLOBAL_SYM_COUNT = $(shell readelf -s --wide $(BPF_IN_SHARED) | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 			   cut -d "@" -f1 | sed 's/_v[0-9]_[0-9]_[0-9].*//' | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 			   sed 's/\[.*\]//' | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 			   awk '/GLOBAL/ && /DEFAULT/ && !/UND/ {print $$NF}' | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 			   sort -u | wc -l)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) VERSIONED_SYM_COUNT = $(shell readelf --dyn-syms --wide $(OUTPUT)libbpf.so | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 			      sed 's/\[.*\]//' | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 			      awk '/GLOBAL/ && /DEFAULT/ && !/UND/ {print $$NF}' | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 			      grep -Eo '[^ ]+@LIBBPF_' | cut -d@ -f1 | sort -u | wc -l)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) CMD_TARGETS = $(LIB_TARGET) $(PC_FILE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) all: fixdep
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	$(Q)$(MAKE) all_cmd
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) all_cmd: $(CMD_TARGETS) check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) $(BPF_IN_SHARED): force elfdep zdep bpfdep $(BPF_HELPER_DEFS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	@(test -f ../../include/uapi/linux/bpf.h -a -f ../../../include/uapi/linux/bpf.h && ( \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	(diff -B ../../include/uapi/linux/bpf.h ../../../include/uapi/linux/bpf.h >/dev/null) || \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	echo "Warning: Kernel ABI header at 'tools/include/uapi/linux/bpf.h' differs from latest version at 'include/uapi/linux/bpf.h'" >&2 )) || true
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	@(test -f ../../include/uapi/linux/bpf_common.h -a -f ../../../include/uapi/linux/bpf_common.h && ( \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 	(diff -B ../../include/uapi/linux/bpf_common.h ../../../include/uapi/linux/bpf_common.h >/dev/null) || \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	echo "Warning: Kernel ABI header at 'tools/include/uapi/linux/bpf_common.h' differs from latest version at 'include/uapi/linux/bpf_common.h'" >&2 )) || true
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	@(test -f ../../include/uapi/linux/netlink.h -a -f ../../../include/uapi/linux/netlink.h && ( \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	(diff -B ../../include/uapi/linux/netlink.h ../../../include/uapi/linux/netlink.h >/dev/null) || \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	echo "Warning: Kernel ABI header at 'tools/include/uapi/linux/netlink.h' differs from latest version at 'include/uapi/linux/netlink.h'" >&2 )) || true
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	@(test -f ../../include/uapi/linux/if_link.h -a -f ../../../include/uapi/linux/if_link.h && ( \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	(diff -B ../../include/uapi/linux/if_link.h ../../../include/uapi/linux/if_link.h >/dev/null) || \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	echo "Warning: Kernel ABI header at 'tools/include/uapi/linux/if_link.h' differs from latest version at 'include/uapi/linux/if_link.h'" >&2 )) || true
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	@(test -f ../../include/uapi/linux/if_xdp.h -a -f ../../../include/uapi/linux/if_xdp.h && ( \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	(diff -B ../../include/uapi/linux/if_xdp.h ../../../include/uapi/linux/if_xdp.h >/dev/null) || \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	echo "Warning: Kernel ABI header at 'tools/include/uapi/linux/if_xdp.h' differs from latest version at 'include/uapi/linux/if_xdp.h'" >&2 )) || true
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	$(Q)$(MAKE) $(build)=libbpf OUTPUT=$(SHARED_OBJDIR) CFLAGS="$(CFLAGS) $(SHLIB_FLAGS)"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) $(BPF_IN_STATIC): force elfdep zdep bpfdep $(BPF_HELPER_DEFS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	$(Q)$(MAKE) $(build)=libbpf OUTPUT=$(STATIC_OBJDIR)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) $(BPF_HELPER_DEFS): $(srctree)/tools/include/uapi/linux/bpf.h
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	$(QUIET_GEN)$(srctree)/scripts/bpf_helpers_doc.py --header \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 		--file $(srctree)/tools/include/uapi/linux/bpf.h > $(BPF_HELPER_DEFS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) $(OUTPUT)libbpf.so: $(OUTPUT)libbpf.so.$(LIBBPF_VERSION)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) $(OUTPUT)libbpf.so.$(LIBBPF_VERSION): $(BPF_IN_SHARED) $(VERSION_SCRIPT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	$(QUIET_LINK)$(CC) $(LDFLAGS) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 		--shared -Wl,-soname,libbpf.so.$(LIBBPF_MAJOR_VERSION) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 		-Wl,--version-script=$(VERSION_SCRIPT) $< -lelf -lz -o $@
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 	@ln -sf $(@F) $(OUTPUT)libbpf.so
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	@ln -sf $(@F) $(OUTPUT)libbpf.so.$(LIBBPF_MAJOR_VERSION)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) $(OUTPUT)libbpf.a: $(BPF_IN_STATIC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	$(QUIET_LINK)$(RM) -f $@; $(AR) rcs $@ $^
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) $(OUTPUT)libbpf.pc:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	$(QUIET_GEN)sed -e "s|@PREFIX@|$(prefix)|" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 		-e "s|@LIBDIR@|$(libdir_SQ)|" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 		-e "s|@VERSION@|$(LIBBPF_VERSION)|" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 		< libbpf.pc.template > $@
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) check: check_abi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) check_abi: $(OUTPUT)libbpf.so $(VERSION_SCRIPT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	@if [ "$(GLOBAL_SYM_COUNT)" != "$(VERSIONED_SYM_COUNT)" ]; then	 \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 		echo "Warning: Num of global symbols in $(BPF_IN_SHARED)"	 \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 		     "($(GLOBAL_SYM_COUNT)) does NOT match with num of"	 \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 		     "versioned symbols in $^ ($(VERSIONED_SYM_COUNT))." \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 		     "Please make sure all LIBBPF_API symbols are"	 \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 		     "versioned in $(VERSION_SCRIPT)." >&2;		 \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 		readelf -s --wide $(BPF_IN_SHARED) |			 \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 		    cut -d "@" -f1 | sed 's/_v[0-9]_[0-9]_[0-9].*//' |	 \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 		    sed 's/\[.*\]//' |					 \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 		    awk '/GLOBAL/ && /DEFAULT/ && !/UND/ {print $$NF}'|  \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 		    sort -u > $(OUTPUT)libbpf_global_syms.tmp;		 \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 		readelf --dyn-syms --wide $(OUTPUT)libbpf.so |		 \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 		    sed 's/\[.*\]//' |					 \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 		    awk '/GLOBAL/ && /DEFAULT/ && !/UND/ {print $$NF}'|  \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 		    grep -Eo '[^ ]+@LIBBPF_' | cut -d@ -f1 |		 \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 		    sort -u > $(OUTPUT)libbpf_versioned_syms.tmp; 	 \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 		diff -u $(OUTPUT)libbpf_global_syms.tmp			 \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 		     $(OUTPUT)libbpf_versioned_syms.tmp;		 \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 		rm $(OUTPUT)libbpf_global_syms.tmp			 \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 		   $(OUTPUT)libbpf_versioned_syms.tmp;			 \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 		exit 1;							 \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 	fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) define do_install_mkdir
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 	if [ ! -d '$(DESTDIR_SQ)$1' ]; then		\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$1';	\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 	fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) endef
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) define do_install
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	if [ ! -d '$(DESTDIR_SQ)$2' ]; then		\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$2';	\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 	fi;						\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	$(INSTALL) $(if $3,-m $3,) $1 '$(DESTDIR_SQ)$2'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) endef
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) install_lib: all_cmd
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 	$(call QUIET_INSTALL, $(LIB_TARGET)) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 		$(call do_install_mkdir,$(libdir_SQ)); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 		cp -fpR $(LIB_FILE) $(DESTDIR)$(libdir_SQ)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) install_headers: $(BPF_HELPER_DEFS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 	$(call QUIET_INSTALL, headers) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 		$(call do_install,bpf.h,$(prefix)/include/bpf,644); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 		$(call do_install,libbpf.h,$(prefix)/include/bpf,644); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 		$(call do_install,btf.h,$(prefix)/include/bpf,644); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 		$(call do_install,libbpf_util.h,$(prefix)/include/bpf,644); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 		$(call do_install,libbpf_common.h,$(prefix)/include/bpf,644); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 		$(call do_install,xsk.h,$(prefix)/include/bpf,644); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 		$(call do_install,bpf_helpers.h,$(prefix)/include/bpf,644); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 		$(call do_install,$(BPF_HELPER_DEFS),$(prefix)/include/bpf,644); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 		$(call do_install,bpf_tracing.h,$(prefix)/include/bpf,644); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 		$(call do_install,bpf_endian.h,$(prefix)/include/bpf,644); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 		$(call do_install,bpf_core_read.h,$(prefix)/include/bpf,644);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) install_pkgconfig: $(PC_FILE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 	$(call QUIET_INSTALL, $(PC_FILE)) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 		$(call do_install,$(PC_FILE),$(libdir_SQ)/pkgconfig,644)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) install: install_lib install_pkgconfig install_headers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) ### Cleaning rules
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) config-clean:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 	$(call QUIET_CLEAN, feature-detect)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 	$(Q)$(MAKE) -C $(srctree)/tools/build/feature/ clean >/dev/null
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) clean: config-clean
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 	$(call QUIET_CLEAN, libbpf) $(RM) -rf $(CMD_TARGETS)		     \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 		*~ .*.d .*.cmd LIBBPF-CFLAGS $(BPF_HELPER_DEFS)		     \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 		$(SHARED_OBJDIR) $(STATIC_OBJDIR)			     \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 		$(addprefix $(OUTPUT),					     \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 			    *.o *.a *.so *.so.$(LIBBPF_MAJOR_VERSION) *.pc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 	$(call QUIET_CLEAN, core-gen) $(RM) $(OUTPUT)FEATURE-DUMP.libbpf
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) PHONY += force elfdep zdep bpfdep cscope tags
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) force:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) elfdep:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 	@if [ "$(feature-libelf)" != "1" ]; then echo "No libelf found"; exit 1 ; fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) zdep:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 	@if [ "$(feature-zlib)" != "1" ]; then echo "No zlib found"; exit 1 ; fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) bpfdep:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 	@if [ "$(feature-bpf)" != "1" ]; then echo "BPF API too old"; exit 1 ; fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) cscope:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 	ls *.c *.h > cscope.files
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 	cscope -b -q -I $(srctree)/include -f cscope.out
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) tags:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 	$(RM) -f TAGS tags
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 	ls *.c *.h | xargs $(TAGS_PROG) -a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) # Declare the contents of the .PHONY variable as phony.  We keep that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) # information in a variable so we can use it in if_changed and friends.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) .PHONY: $(PHONY)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) # Delete partially updated (corrupted) files on error
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) .DELETE_ON_ERROR: