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# -*- Makefile -*-
# Copyright (C) 2004 Christophe Varoqui, <christophe.varoqui@opensvc.com>
#
#
# Uncomment to disable libdmmp support
# ENABLE_LIBDMMP = 0
#
# Uncomment to disable dmevents polling support
# ENABLE_DMEVENTS_POLL = 0
#
# Use ASAN=1 on make command line to enable address sanitizer
ASAN :=
#
# Override on make command line if desired
OPT := -O2
# Readline library to use, libedit, libreadline, or empty
# Caution: Using libreadline may make the multipathd binary undistributable,
# see https://github.com/opensvc/multipath-tools/issues/36
READLINE := libedit
# List of scsi device handler modules to load on boot, e.g.
# SCSI_DH_MODULES_PRELOAD := scsi_dh_alua scsi_dh_rdac
SCSI_DH_MODULES_PRELOAD :=
EXTRAVERSION :=
# PKG_CONFIG must be read from the environment to enable compilation
# in Debian multiarch setups
PKG_CONFIG ?= pkg-config
ifeq ($(TOPDIR),)
TOPDIR = ..
endif
ifneq ($(CREATE_CONFIG),1)
include $(TOPDIR)/config.mk
endif
# Paths. All these can be overridden on the "make" command line.
prefix := /usr
# Prefix for binaries
exec_prefix := $(prefix)
# Prefix for non-essential libraries (libdmmp)
usr_prefix := $(if $(prefix),$(prefix),/usr)
# Prefix for configuration files (multipath.conf)
etc_prefix :=
# Where to install systemd-related files. systemd is usually installed under /usr
# Note: systemd installations with "split-usr=true" use separate "prefixdir" and
# "rootprefixdir". Our systemd_prefix corresponds to "prefixdir".
# In this case, override only unitdir, libudevdir and sys_execprefix below
# to use systemd's "rootprefixdir" instead of $(systemd_prefix)
systemd_prefix := /usr
# Prefix for binaries that are owned by other packages (including systemd)
sys_execprefix := /usr
# Make sure all prefix variables end in "/"
append-slash = $(1)$(if $(filter %/,$(1)),,/)
override prefix := $(call append-slash,$(prefix))
override exec_prefix := $(call append-slash,$(exec_prefix))
override usr_prefix := $(call append-slash,$(usr_prefix))
override etc_prefix := $(call append-slash,$(etc_prefix))
override systemd_prefix := $(call append-slash,$(systemd_prefix))
override sys_execprefix := $(call append-slash,$(sys_execprefix))
unitdir := $(systemd_prefix)lib/systemd/system
tmpfilesdir := $(systemd_prefix)lib/tmpfiles.d
modulesloaddir := $(systemd_prefix)lib/modules-load.d
libudevdir := $(systemd_prefix)lib/udev
udevrulesdir := $(libudevdir)/rules.d
bindir := $(exec_prefix)sbin
mandir := $(usr_prefix)share/man
LIB := lib
syslibdir := $(prefix)$(LIB)
usrlibdir := $(usr_prefix)$(LIB)
includedir := $(usr_prefix)include
pkgconfdir := $(usrlibdir)/pkgconfig
plugindir := $(prefix)$(LIB)/multipath
configdir := $(etc_prefix)etc/multipath/conf.d
configfile := $(etc_prefix)etc/multipath.conf
statedir := $(etc_prefix)etc/multipath
runtimedir := $(if $(shell test -L /var/run -o ! -d /var/run && echo 1),/run,/var/run)
devmapper_incdir := $(or $(shell $(PKG_CONFIG) --variable=includedir devmapper),/usr/include)
libudev_incdir := $(or $(shell $(PKG_CONFIG) --variable=includedir libudev),/usr/include)
kernel_incdir := /usr/include
sysdir_bin := $(sys_execprefix)bin
abstract_socket := @/org/kernel/linux/storage/multipathd
pathname_socket := /run/multipathd.socket
MAKEFLAGS = --no-print-directory
GZIP_PROG := gzip -9 -c
RM := rm -f
LN := ln -sf
INSTALL_PROGRAM := install
ORIG_CPPFLAGS := $(CPPFLAGS)
ORIG_CFLAGS := $(CFLAGS)
ORIG_LDFLAGS := $(LDFLAGS)
SYSTEMD_CPPFLAGS := $(if $(SYSTEMD),-DUSE_SYSTEMD=$(SYSTEMD))
SYSTEMD_LIBDEPS := $(if $(SYSTEMD),$(if $(shell test $(SYSTEMD) -gt 209 && echo 1),-lsystemd,-lsystemd-daemon))
MODPROBE_UNIT := $(shell test "0$(SYSTEMD)" -lt 245 2>/dev/null || \
echo "modprobe@dm_multipath.service")
OPTFLAGS := $(OPT) -g $(STACKPROT) --param=ssp-buffer-size=4
# Set WARN_ONLY=1 to avoid compilation erroring out due to warnings. Useful during development.
WARN_ONLY :=
ERROR := $(if $(WARN_ONLY),,error=)
WERROR := $(if $(WARN_ONLY),,-Werror)
WARNFLAGS := $(WERROR) -Wall -Wextra -Wformat=2 $(WFORMATOVERFLOW) -W$(ERROR)implicit-int \
-W$(ERROR)implicit-function-declaration -W$(ERROR)format-security \
$(WNOCLOBBERED) -W$(ERROR)cast-qual $(ERROR_DISCARDED_QUALIFIERS) $(W_URCU_TYPE_LIMITS)
CPPFLAGS := $(FORTIFY_OPT) $(CPPFLAGS) $(D_URCU_VERSION) $(D_CMOCKA_VERSION) \
-D_FILE_OFFSET_BITS=64 \
-DBIN_DIR=\"$(bindir)\" -DMULTIPATH_DIR=\"$(TGTDIR)$(plugindir)\" \
-DRUNTIME_DIR=\"$(runtimedir)\" -DCONFIG_DIR=\"$(TGTDIR)$(configdir)\" \
-DDEFAULT_CONFIGFILE=\"$(TGTDIR)$(configfile)\" -DSTATE_DIR=\"$(TGTDIR)$(statedir)\" \
-DEXTRAVERSION=\"$(EXTRAVERSION)\" \
-DABSTRACT_SOCKET=\"$(abstract_socket)\" -DPATHNAME_SOCKET=\"$(pathname_socket)\" \
-DWSTRINGOP_TRUNCATION=$(if $(WSTRINGOP_TRUNCATION),1,0) \
-MMD -MP
CFLAGS := -std=$(C_STD) $(CFLAGS) $(OPTFLAGS) $(WARNFLAGS) $(EXTRACFLAGS) -pipe \
-fexceptions -fno-strict-aliasing $(if $(ASAN),-fsanitize=address)
BIN_CFLAGS := -fPIE -DPIE
LIB_CFLAGS := -fPIC
SHARED_FLAGS := -shared
LDFLAGS := $(LDFLAGS) -Wl,-z,relro -Wl,-z,now -Wl,-z,defs $(if $(ASAN),-lasan)
BIN_LDFLAGS := -pie
# Source code directories. Don't modify.
multipathdir := $(TOPDIR)/libmultipath
daemondir := $(TOPDIR)/multipathd
mpathutildir := $(TOPDIR)/libmpathutil
mpathpersistdir := $(TOPDIR)/libmpathpersist
mpathcmddir := $(TOPDIR)/libmpathcmd
mpathvaliddir := $(TOPDIR)/libmpathvalid
thirdpartydir := $(TOPDIR)/third-party
libdmmpdir := $(TOPDIR)/libdmmp
nvmedir := $(TOPDIR)/libmultipath/nvme
# Common code for libraries - library Makefiles just set DEVLIB
# SONAME defaults to 0 (we use version scripts)
SONAME := 0
LIBS = $(DEVLIB).$(SONAME)
VERSION_SCRIPT = $(DEVLIB:%.so=%.version)
NV_VERSION_SCRIPT = $(DEVLIB:%.so=%-nv.version)
%.o: %.c
@echo building $@ because of $?
$(Q)$(CC) $(CPPFLAGS) $(CFLAGS) -c -o $@ $<
%.abi: %.so.0
$(Q)abidw $< >$@
%.abi: %.so
$(Q)abidw $< >$@
%-nv.version: %.version
@echo creating $@ from $<
@printf 'NOVERSION {\nglobal:\n' >$@
@grep -P '^[ \t]+[a-zA-Z_][a-zA-Z0-9_]*;' $< >>$@
@printf 'local:\n\t*;\n};\n' >>$@
%: %.in
@echo creating $@
$(Q)sed -e 's:@CONFIGFILE@:'$(TGTDIR)$(configfile)':g' \
-e 's:@CONFIGDIR@:'$(TGTDIR)$(configdir)':g' \
-e 's:@STATE_DIR@:'$(TGTDIR)$(statedir)':g' \
-e 's:@BINDIR@:'$(TGTDIR)$(bindir)':g' \
-e 's:@SYSDIR_BIN@:'$(sysdir_bin)': g' \
-e 's:@RUNTIME_DIR@:'$(runtimedir)':g' \
-e 's/@MODPROBE_UNIT@/'$(MODPROBE_UNIT)'/g' \
-e 's,@ABSTRACT_SOCKET@,'$(abstract_socket)',g' \
-e 's,@PATHNAME_SOCKET@,'$(pathname_socket)',g' \
$< >$@
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