Makefile

# makedumpfile

VERSION=1.7.4
DATE=6 Nov 2023

# Honour the environment variable CC
ifeq ($(strip $CC),)
CC	= gcc
endif

CFLAGS_BASE := $(CFLAGS) -g -O2 -Wall -D_FILE_OFFSET_BITS=64 \
		-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE
CFLAGS      := $(CFLAGS_BASE) -DVERSION='"$(VERSION)"' -DRELEASE_DATE='"$(DATE)"'
CFLAGS_ARCH := $(CFLAGS_BASE)
# LDFLAGS = -L/usr/local/lib -I/usr/local/include

HOST_ARCH := $(shell uname -m)
# Use TARGET as the target architecture if specified.
# Defaults to uname -m
ifeq ($(strip($TARGET)),)
TARGET := $(HOST_ARCH)
endif

ARCH := $(shell echo ${TARGET}  | sed -e s/i.86/x86/ -e s/sun4u/sparc64/ \
			       -e s/arm.*/arm/ -e s/sa110/arm/ \
			       -e s/s390x/s390/ -e s/parisc64/parisc/ \
			       -e s/ppc64/powerpc64/ -e s/ppc/powerpc32/)

CROSS :=
ifneq ($(TARGET), $(HOST_ARCH))
CROSS := -U__$(HOST_ARCH)__
endif

CFLAGS += -D__$(ARCH)__ $(CROSS)
CFLAGS_ARCH += -D__$(ARCH)__ $(CROSS)

ifeq ($(ARCH), powerpc64)
CFLAGS += -m64
CFLAGS_ARCH += -m64
endif

ifeq ($(ARCH), powerpc32)
CFLAGS += -m32
CFLAGS_ARCH += -m32
endif

SRC_BASE = makedumpfile.c makedumpfile.h diskdump_mod.h sadump_mod.h sadump_info.h
SRC_PART = print_info.c dwarf_info.c elf_info.c erase_info.c sadump_info.c tools.c printk.c detect_cycle.c
OBJ_PART=$(patsubst %.c,%.o,$(SRC_PART))
SRC_ARCH = arch/arm.c arch/arm64.c arch/x86.c arch/x86_64.c arch/ia64.c arch/ppc64.c arch/s390x.c arch/ppc.c arch/sparc64.c arch/mips64.c arch/loongarch64.c arch/riscv64.c
OBJ_ARCH=$(patsubst %.c,%.o,$(SRC_ARCH))

LIBS = -ldw -lbz2 -ldl -lelf -lz
ifneq ($(LINKTYPE), dynamic)
LIBS := -static $(LIBS) -llzma
endif

ifeq ($(USELZO), on)
LIBS := -llzo2 $(LIBS)
CFLAGS += -DUSELZO
endif

ifeq ($(USESNAPPY), on)
LIBS := -lsnappy $(LIBS)
ifneq ($(LINKTYPE), dynamic)
LIBS := $(LIBS) -lstdc++
endif
CFLAGS += -DUSESNAPPY
endif

ifeq ($(USEZSTD), on)
LIBS := -lzstd $(LIBS)
CFLAGS += -DUSEZSTD
endif

ifeq ($(DEBUG), on)
# Requires libasan
CFLAGS += -fsanitize=address
# Requires libubsan
CFLAGS += -fsanitize=undefined
# Warning: extremely slow
#CFLAGS += -fanalyzer
endif

LIBS := $(LIBS) -lpthread
LIBS := $(LIBS) -lkdumpfile -laddrxlat

try-run = $(shell set -e;		\
	TMP=".$$$$.tmp";		\
	if ($(1)) >/dev/null 2>&1;	\
	then echo "$(2)";		\
	else echo "$(3)";		\
	fi;				\
	rm -f "$$TMP")

LINK_TEST_PROG="int clock_gettime(); int main(){ return clock_gettime(); }"
LIBS := $(LIBS) $(call try-run,\
	echo $(LINK_TEST_PROG) | $(CC) $(CFLAGS) -o "$$TMP" -x c -,,-lrt)

# elfutils-0.178 or later does not install libebl.a.
LINK_TEST_PROG="int main() { return 0; }"
LIBS := $(LIBS) $(call try-run,\
	echo $(LINK_TEST_PROG) | $(CC) -o "$$TMP" -x c - -lebl,-lebl,)

all: makedumpfile

$(OBJ_PART): $(SRC_PART)
	$(CC) $(CFLAGS) -c -o ./$@ $(VPATH)$(@:.o=.c)

$(OBJ_ARCH): $(SRC_ARCH)
	@mkdir -p $(@D)
	$(CC) $(CFLAGS_ARCH) -c -o ./$@ $(VPATH)$(@:.o=.c)

makedumpfile: $(SRC_BASE) $(OBJ_PART) $(OBJ_ARCH)
	$(CC) $(CFLAGS) $(LDFLAGS) $(OBJ_PART) $(OBJ_ARCH) -rdynamic -o $@ $< $(LIBS)
	@sed -e "s/@DATE@/$(DATE)/" \
	     -e "s/@VERSION@/$(VERSION)/" \
	     $(VPATH)makedumpfile.8.in > $(VPATH)makedumpfile.8
	@sed -e "s/@DATE@/$(DATE)/" \
	     -e "s/@VERSION@/$(VERSION)/" \
	     $(VPATH)makedumpfile.conf.5.in > $(VPATH)makedumpfile.conf.5

eppic_makedumpfile.so: extension_eppic.c
	$(CC) $(CFLAGS) $(LDFLAGS) -shared -rdynamic -o $@ extension_eppic.c -fPIC -leppic -ltinfo

clean:
	rm -f $(OBJ) $(OBJ_PART) $(OBJ_ARCH) makedumpfile makedumpfile.8 makedumpfile.conf.5

install:
	install -m 755 -d ${DESTDIR}/usr/sbin ${DESTDIR}/usr/share/man/man5 ${DESTDIR}/usr/share/man/man8
	install -m 755 -t ${DESTDIR}/usr/sbin makedumpfile $(VPATH)makedumpfile-R.pl
	install -m 644 -t ${DESTDIR}/usr/share/man/man8 makedumpfile.8
	install -m 644 -t ${DESTDIR}/usr/share/man/man5 makedumpfile.conf.5
	mkdir -p ${DESTDIR}/usr/share/makedumpfile/eppic_scripts
	install -m 644 -D $(VPATH)makedumpfile.conf ${DESTDIR}/usr/share/makedumpfile/makedumpfile.conf.sample
	install -m 644 -t ${DESTDIR}/usr/share/makedumpfile/eppic_scripts/ $(VPATH)eppic_scripts/*