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dtc/Makefile
David Gibson 5c3513f689 Link tools and tests against libfdt shared library 
Currently the libfdt based tools (fdtput, fdtget, etc.) and all the
test binaries using libfdt are linked against the static version of libfdt.
That's made it very easy in the past to forget to properly update the
version.lds file which is needed to make functions publicaly accessible
from the shared library.

To avoid problems like that in future, alter the build so that we link and
run the tests against the shared library version of libfdt.

That immediately points out several important symbols that are still
missing from the version.lds, so fix those as well.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-03-29 17:20:16 +11:00

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Makefile
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#
# Device Tree Compiler
#
#
# Version information will be constructed in this order:
# EXTRAVERSION might be "-rc", for example.
# LOCAL_VERSION is likely from command line.
# CONFIG_LOCALVERSION from some future config system.
#
VERSION = 1
PATCHLEVEL = 5
SUBLEVEL = 0
EXTRAVERSION =
LOCAL_VERSION =
CONFIG_LOCALVERSION =
CPPFLAGS = -I libfdt -I .
WARNINGS = -Wall -Wpointer-arith -Wcast-qual -Wnested-externs \
-Wstrict-prototypes -Wmissing-prototypes -Wredundant-decls -Wshadow
CFLAGS = -g -Os $(SHAREDLIB_CFLAGS) -Werror $(WARNINGS)
BISON = bison
LEX = flex
SWIG = swig
PKG_CONFIG ?= pkg-config
PYTHON ?= python3
INSTALL = /usr/bin/install
INSTALL_PROGRAM = $(INSTALL)
INSTALL_LIB = $(INSTALL)
INSTALL_DATA = $(INSTALL) -m 644
INSTALL_SCRIPT = $(INSTALL)
DESTDIR =
PREFIX = $(HOME)
BINDIR = $(PREFIX)/bin
LIBDIR = $(PREFIX)/lib
INCLUDEDIR = $(PREFIX)/include
HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
sed -e 's/\(cygwin\|msys\).*/\1/')
NO_VALGRIND := $(shell $(PKG_CONFIG) --exists valgrind; echo $$?)
ifeq ($(NO_VALGRIND),1)
CFLAGS += -DNO_VALGRIND
else
CFLAGS += $(shell $(PKG_CONFIG) --cflags valgrind)
endif
NO_YAML := $(shell $(PKG_CONFIG) --exists yaml-0.1; echo $$?)
ifeq ($(NO_YAML),1)
CFLAGS += -DNO_YAML
else
LDLIBS_dtc += $(shell $(PKG_CONFIG) --libs yaml-0.1)
endif
ifeq ($(HOSTOS),darwin)
SHAREDLIB_EXT = dylib
SHAREDLIB_CFLAGS = -fPIC
SHAREDLIB_LDFLAGS = -fPIC -dynamiclib -Wl,-install_name -Wl,
else ifeq ($(HOSTOS),$(filter $(HOSTOS),msys cygwin))
SHAREDLIB_EXT = so
SHAREDLIB_CFLAGS =
SHAREDLIB_LDFLAGS = -shared -Wl,--version-script=$(LIBFDT_version) -Wl,-soname,
else
SHAREDLIB_EXT = so
SHAREDLIB_CFLAGS = -fPIC
SHAREDLIB_LDFLAGS = -fPIC -shared -Wl,--version-script=$(LIBFDT_version) -Wl,-soname,
endif
#
# Overall rules
#
ifdef V
VECHO = :
else
VECHO = echo " "
ARFLAGS = rc
.SILENT:
endif
NODEPTARGETS = clean
ifeq ($(MAKECMDGOALS),)
DEPTARGETS = all
else
DEPTARGETS = $(filter-out $(NODEPTARGETS),$(MAKECMDGOALS))
endif
#
# Rules for versioning
#
DTC_VERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
VERSION_FILE = version_gen.h
CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
else if [ -x /bin/bash ]; then echo /bin/bash; \
else echo sh; fi ; fi)
nullstring :=
space := $(nullstring) # end of line
localver_config = $(subst $(space),, $(string) \
$(patsubst "%",%,$(CONFIG_LOCALVERSION)))
localver_cmd = $(subst $(space),, $(string) \
$(patsubst "%",%,$(LOCALVERSION)))
localver_scm = $(shell $(CONFIG_SHELL) ./scripts/setlocalversion)
localver_full = $(localver_config)$(localver_cmd)$(localver_scm)
dtc_version = $(DTC_VERSION)$(localver_full)
# Contents of the generated version file.
define filechk_version
(echo "#define DTC_VERSION \"DTC $(dtc_version)\""; )
endef
define filechk
set -e; \
echo ' CHK $@'; \
mkdir -p $(dir $@); \
$(filechk_$(1)) < $< > $@.tmp; \
if [ -r $@ ] && cmp -s $@ $@.tmp; then \
rm -f $@.tmp; \
else \
echo ' UPD $@'; \
mv -f $@.tmp $@; \
fi;
endef
include Makefile.convert-dtsv0
include Makefile.dtc
include Makefile.utils
BIN += convert-dtsv0
BIN += dtc
BIN += fdtdump
BIN += fdtget
BIN += fdtput
BIN += fdtoverlay
SCRIPTS = dtdiff
all: $(BIN) libfdt
# We need both Python and swig to build/install pylibfdt.
# This builds the given make ${target} if those deps are found.
check_python_deps = \
if $(PKG_CONFIG) --cflags $(PYTHON) >/dev/null 2>&1; then \
if which swig >/dev/null 2>&1; then \
can_build=yes; \
fi; \
fi; \
if [ "$${can_build}" = "yes" ]; then \
$(MAKE) $${target}; \
else \
echo "\#\# Skipping pylibfdt (install python dev and swig to build)"; \
fi ;
.PHONY: maybe_pylibfdt
maybe_pylibfdt: FORCE
target=pylibfdt; $(check_python_deps)
ifeq ($(NO_PYTHON),)
all: maybe_pylibfdt
endif
ifneq ($(DEPTARGETS),)
-include $(DTC_OBJS:%.o=%.d)
-include $(CONVERT_OBJS:%.o=%.d)
-include $(FDTDUMP_OBJS:%.o=%.d)
-include $(FDTGET_OBJS:%.o=%.d)
-include $(FDTPUT_OBJS:%.o=%.d)
-include $(FDTOVERLAY_OBJS:%.o=%.d)
endif
#
# Rules for libfdt
#
LIBFDT_dir = libfdt
LIBFDT_archive = $(LIBFDT_dir)/libfdt.a
LIBFDT_lib = $(LIBFDT_dir)/$(LIBFDT_LIB)
LIBFDT_include = $(addprefix $(LIBFDT_dir)/,$(LIBFDT_INCLUDES))
LIBFDT_version = $(addprefix $(LIBFDT_dir)/,$(LIBFDT_VERSION))
include $(LIBFDT_dir)/Makefile.libfdt
.PHONY: libfdt
libfdt: $(LIBFDT_archive) $(LIBFDT_lib)
$(LIBFDT_archive): $(addprefix $(LIBFDT_dir)/,$(LIBFDT_OBJS))
$(LIBFDT_lib): $(addprefix $(LIBFDT_dir)/,$(LIBFDT_OBJS)) $(LIBFDT_version)
@$(VECHO) LD $@
$(CC) $(LDFLAGS) $(SHAREDLIB_LDFLAGS)$(LIBFDT_soname) -o $(LIBFDT_lib) \
$(addprefix $(LIBFDT_dir)/,$(LIBFDT_OBJS))
ln -s $(LIBFDT_LIB) $(LIBFDT_dir)/$(LIBFDT_soname)
ifneq ($(DEPTARGETS),)
-include $(LIBFDT_OBJS:%.o=$(LIBFDT_dir)/%.d)
endif
# This stops make from generating the lex and bison output during
# auto-dependency computation, but throwing them away as an
# intermediate target and building them again "for real"
.SECONDARY: $(DTC_GEN_SRCS) $(CONVERT_GEN_SRCS)
install-bin: all $(SCRIPTS)
@$(VECHO) INSTALL-BIN
$(INSTALL) -d $(DESTDIR)$(BINDIR)
$(INSTALL_PROGRAM) $(BIN) $(DESTDIR)$(BINDIR)
$(INSTALL_SCRIPT) $(SCRIPTS) $(DESTDIR)$(BINDIR)
install-lib: all
@$(VECHO) INSTALL-LIB
$(INSTALL) -d $(DESTDIR)$(LIBDIR)
$(INSTALL_LIB) $(LIBFDT_lib) $(DESTDIR)$(LIBDIR)
ln -sf $(notdir $(LIBFDT_lib)) $(DESTDIR)$(LIBDIR)/$(LIBFDT_soname)
ln -sf $(LIBFDT_soname) $(DESTDIR)$(LIBDIR)/libfdt.$(SHAREDLIB_EXT)
$(INSTALL_DATA) $(LIBFDT_archive) $(DESTDIR)$(LIBDIR)
install-includes:
@$(VECHO) INSTALL-INC
$(INSTALL) -d $(DESTDIR)$(INCLUDEDIR)
$(INSTALL_DATA) $(LIBFDT_include) $(DESTDIR)$(INCLUDEDIR)
install: install-bin install-lib install-includes
.PHONY: maybe_install_pylibfdt
maybe_install_pylibfdt: FORCE
target=install_pylibfdt; $(check_python_deps)
ifeq ($(NO_PYTHON),)
install: maybe_install_pylibfdt
endif
$(VERSION_FILE): Makefile FORCE
$(call filechk,version)
dtc: $(DTC_OBJS)
convert-dtsv0: $(CONVERT_OBJS)
@$(VECHO) LD $@
$(LINK.c) -o $@ $^
fdtdump: $(FDTDUMP_OBJS)
fdtget: $(FDTGET_OBJS) $(LIBFDT_lib)
fdtput: $(FDTPUT_OBJS) $(LIBFDT_lib)
fdtoverlay: $(FDTOVERLAY_OBJS) $(LIBFDT_lib)
dist:
git archive --format=tar --prefix=dtc-$(dtc_version)/ HEAD \
> ../dtc-$(dtc_version).tar
cat ../dtc-$(dtc_version).tar | \
gzip -9 > ../dtc-$(dtc_version).tar.gz
#
# Rules for pylibfdt
#
PYLIBFDT_dir = pylibfdt
include $(PYLIBFDT_dir)/Makefile.pylibfdt
.PHONY: pylibfdt
pylibfdt: $(PYLIBFDT_dir)/_libfdt.so
#
# Release signing and uploading
# This is for maintainer convenience, don't try this at home.
#
ifeq ($(MAINTAINER),y)
GPG = gpg2
KUP = kup
KUPDIR = /pub/software/utils/dtc
kup: dist
$(GPG) --detach-sign --armor -o ../dtc-$(dtc_version).tar.sign \
../dtc-$(dtc_version).tar
$(KUP) put ../dtc-$(dtc_version).tar.gz ../dtc-$(dtc_version).tar.sign \
$(KUPDIR)/dtc-$(dtc_version).tar.gz
endif
tags: FORCE
rm -f tags
find . \( -name tests -type d -prune \) -o \
\( ! -name '*.tab.[ch]' ! -name '*.lex.c' \
-name '*.[chly]' -type f -print \) | xargs ctags -a
#
# Testsuite rules
#
TESTS_PREFIX=tests/
TESTS_BIN += dtc
TESTS_BIN += convert-dtsv0
TESTS_BIN += fdtput
TESTS_BIN += fdtget
TESTS_BIN += fdtdump
TESTS_BIN += fdtoverlay
ifeq ($(NO_PYTHON),)
TESTS_PYLIBFDT += maybe_pylibfdt
endif
include tests/Makefile.tests
#
# Clean rules
#
STD_CLEANFILES = *~ *.o *.$(SHAREDLIB_EXT) *.d *.a *.i *.s core a.out vgcore.* \
*.tab.[ch] *.lex.c *.output
clean: libfdt_clean pylibfdt_clean tests_clean
@$(VECHO) CLEAN
rm -f $(STD_CLEANFILES)
rm -f $(VERSION_FILE)
rm -f $(BIN)
rm -f dtc-*.tar dtc-*.tar.sign dtc-*.tar.asc
#
# Generic compile rules
#
%: %.o
@$(VECHO) LD $@
$(LINK.c) -o $@ $^ $(LDLIBS_$*)
%.o: %.c
@$(VECHO) CC $@
$(CC) $(CPPFLAGS) $(CFLAGS) -o $@ -c $<
%.o: %.S
@$(VECHO) AS $@
$(CC) $(CPPFLAGS) $(AFLAGS) -D__ASSEMBLY__ -o $@ -c $<
%.d: %.c
@$(VECHO) DEP $<
$(CC) $(CPPFLAGS) -MM -MG -MT "$*.o $@" $< > $@
%.d: %.S
@$(VECHO) DEP $<
$(CC) $(CPPFLAGS) -MM -MG -MT "$*.o $@" $< > $@
%.i: %.c
@$(VECHO) CPP $@
$(CC) $(CPPFLAGS) -E $< > $@
%.s: %.c
@$(VECHO) CC -S $@
$(CC) $(CPPFLAGS) $(CFLAGS) -o $@ -S $<
%.a:
@$(VECHO) AR $@
$(AR) $(ARFLAGS) $@ $^
%.lex.c: %.l
@$(VECHO) LEX $@
$(LEX) -o$@ $<
%.tab.c %.tab.h %.output: %.y
@$(VECHO) BISON $@
$(BISON) -d $<
FORCE:
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