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genode/ports/mk/noux.mk
Norman Feske fae63f4fa9 Merge base libraries into a single library 
This patch simplifies the way of how Genode's base libraries are
organized. Originally, the base API was implemented in the form of many
small libraries such as 'thread', 'env', 'server', etc. Most of them
used to consist of only a small number of files. Because those libraries
are incorporated in any build, the checking of their inter-dependencies
made the build process more verbose than desired. Also, the number of
libraries and their roles (core only, non-core only, shared by both core
and non-core) were not easy to capture.

Hereby, the base libraries have been reduced to the following few
libraries:

- startup.mk contains the startup code for normal Genode processes.
  On some platform, core is able to use the library as well.
- base-common.mk contains the parts of the base library that are
  identical by core and non-core processes.
- base.mk contains the complete base API implementation for non-core
  processes

Consequently, the 'LIBS' declaration in 'target.mk' files becomes
simpler as well. In the most simple case, only the 'base' library must
be mentioned.

Fixes #18
2013-02-19 14:45:55 +01:00

202 lines
6.6 KiB
Makefile
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#
# \brief Rules for building software that uses the GNU build tools
# \author Norman Feske
# \date 2011-02-02
#
# This file is meant to be included by 'target.mk' files. Instead of building
# a normal Genode target, the 'target.mk' file will then trigger the build
# of the contrib package specified with the 'NOUX_PKG' variable. The build
# consists to the following steps
#
# 1. Configuring the package by invoking the package's 'configure' script
# with the arguments required for cross compiling the package for
# Genode.
# 2. Building the package by invoking the 'Makefile' generated by the
# 'configure' script.
#
# Limitations
# -----------
#
# In contrast to the Genode build system, library dependencies are not covered.
# So if a library used by a noux package is changed, the noux package gets not
# relinked automatically. In this case, 'make clean' must be invoked manually
# within the build subdirectory of the noux package.
#
#
# Use name of the directory hosting the 'target.mk' file as 'TARGET'
# and 'NOUX_PKG' by default.
#
TARGET ?= $(lastword $(subst /, ,$(PRG_DIR)))
NOUX_PKG ?= $(TARGET)
LIBS += libc libm libc_noux
NOUX_PKG_DIR ?= $(wildcard $(REP_DIR)/contrib/$(NOUX_PKG)-*)
PWD = $(shell pwd)
#
# Detect missing preparation of noux package
#
ifeq ($(NOUX_PKG_DIR),)
REQUIRES += prepare_$(NOUX_PKG)
endif
#
# Verbose build
#
ifeq ($(VERBOSE),)
NOUX_MAKE_VERBOSE = V=1
NOUX_CONFIGURE_VERBOSE =
#
# Non-verbose build
#
else
NOUX_MAKE_VERBOSE = -s
NOUX_CONFIGURE_VERBOSE = --quiet
# filter for configure output of noux package
NOUX_CONFIGURE_OUTPUT_FILTER = > stdout.log 2> stderr.log ||\
(echo "Error: configure script of $(NOUX_PKG) failed" && \
cat stderr.log && false)
# filter for make output of noux package
NOUX_BUILD_OUTPUT_FILTER = 2>&1 | sed "s/^/ [$(NOUX_PKG)] /"
endif
ifeq ($(findstring arm, $(SPECS)), arm)
NOUX_CONFIGURE_ARGS += --host arm-elf-eabi
else
ifeq ($(findstring x86, $(SPECS)), x86)
NOUX_CONFIGURE_ARGS += --host x86_64-elf
endif
endif
NOUX_CONFIGURE_ARGS += --srcdir=$(NOUX_PKG_DIR)
NOUX_CONFIGURE_ARGS += --prefix /
CONFIG_GUESS_SCRIPT = $(NOUX_PKG_DIR)/config.guess)
ifneq ($(wildcard $(CONFIG_GUESS_SCRIPT)),)
NOUX_CONFIGURE_ARGS += --build $(shell $(CONFIG_GUESS_SCRIPT))
else
NOUX_CONFIGURE_ARGS += --build x86-linux
endif
NOUX_CONFIGURE_ARGS += $(NOUX_CONFIGURE_VERBOSE)
NOUX_LDFLAGS += -nostdlib $(CXX_LINK_OPT) $(CC_MARCH) -Wl,-T$(LD_SCRIPT_DYN) \
-Wl,--dynamic-linker=$(DYNAMIC_LINKER).lib.so \
-Wl,--eh-frame-hdr
NOUX_LIBTOOLFLAGS = --preserve-dup-deps
LIBGCC = $(shell $(CC) $(CC_MARCH) -print-libgcc-file-name)
NOUX_CPPFLAGS += -nostdinc $(INCLUDES)
NOUX_CPPFLAGS += -D_GNU_SOURCE=1
NOUX_CPPFLAGS += $(CC_MARCH)
NOUX_CFLAGS += -ffunction-sections $(CC_OLEVEL) -nostdlib $(NOUX_CPPFLAGS)
NOUX_CFLAGS += -g
#
# We have to specify 'LINK_ITEMS' twice to resolve inter-library dependencies.
# Unfortunately, the use of '--start-group' and '--end-group' does not suffice
# in all cases because 'libtool' strips those arguments from the 'LIBS' variable.
#
NOUX_LIBS_A = $(filter %.a, $(sort $(LINK_ITEMS)) $(EXT_OBJECTS) $(LIBGCC))
NOUX_LIBS_SO = $(filter %.so,$(sort $(LINK_ITEMS)) $(EXT_OBJECTS) $(LIBGCC))
NOUX_LIBS += $(NOUX_LIBS_A) $(NOUX_LIBS_SO) $(NOUX_LIBS_A)
NOUX_ENV += CC='$(CC)' CXX='$(CXX)' LD='$(LD)' AR='$(AR)' NM='$(NM)' RANLIB='$(RANLIB)' STRIP='$(STRIP)' LIBS='$(NOUX_LIBS)' \
LDFLAGS='$(NOUX_LDFLAGS)' CFLAGS='$(NOUX_CFLAGS)' \
CPPFLAGS='$(NOUX_CPPFLAGS)' CXXFLAGS='$(NOUX_CXXFLAGS)'
NOUX_ENV += CC_FOR_BUILD=gcc LD_FOR_BUILD=ld \
CFLAGS_FOR_BUILD='$(NOUX_CFLAGS_FOR_BUILD)' \
CPPFLAGS_FOR_BUILD='' LDFLAGS_FOR_BUILD=''
#
# Re-configure the Makefile if the Genode build environment changes
#
Makefile reconfigure: $(MAKEFILE_LIST)
#
# Invoke configure script with the Genode environment
#
Makefile reconfigure: noux_env.sh
@$(MSG_CONFIG)$(TARGET)
$(VERBOSE)source noux_env.sh && $(NOUX_PKG_DIR)/configure $(NOUX_ENV) $(NOUX_CONFIGURE_ARGS) $(NOUX_CONFIGURE_OUTPUT_FILTER)
noux_env.sh:
$(VERBOSE)rm -f $@
$(VERBOSE)echo "export CC='$(CC)'" >> $@
$(VERBOSE)echo "export CXX='$(CXX)'" >> $@
$(VERBOSE)echo "export LD='$(LD)'" >> $@
$(VERBOSE)echo "export AR='$(AR)'" >> $@
$(VERBOSE)echo "export NM='$(NM)'" >> $@
$(VERBOSE)echo "export RANLIB='$(RANLIB)'" >> $@
$(VERBOSE)echo "export STRIP='$(STRIP)'" >> $@
$(VERBOSE)echo "export CPPFLAGS='$(NOUX_CPPFLAGS)'" >> $@
$(VERBOSE)echo "export CFLAGS='$(NOUX_CFLAGS)'" >> $@
$(VERBOSE)echo "export CXXFLAGS='$(NOUX_CXXFLAGS)'" >> $@
$(VERBOSE)echo "export LDFLAGS='$(NOUX_LDFLAGS)'" >> $@
$(VERBOSE)echo "export LIBS='$(NOUX_LIBS)'" >> $@
$(VERBOSE)echo "export CC_FOR_TARGET='$(CC)'" >> $@
$(VERBOSE)echo "export CXX_FOR_TARGET='$(CXX)'" >> $@
$(VERBOSE)echo "export GCC_FOR_TARGET='$(CC)'" >> $@
$(VERBOSE)echo "export LD_FOR_TARGET='$(LD)'" >> $@
$(VERBOSE)echo "export AS_FOR_TARGET='$(AS)'" >> $@
$(VERBOSE)echo "export AR_FOR_TARGET='$(AR)'" >> $@
$(VERBOSE)echo "export LDFLAGS_FOR_TARGET='$(NOUX_LDFLAGS)'" >> $@
$(VERBOSE)echo "export LIBS_FOR_TARGET='$(NOUX_LIBS)'" >> $@
$(VERBOSE)echo "export CFLAGS_FOR_BUILD='$(NOUX_CFLAGS_FOR_BUILD)'" >> $@
$(VERBOSE)echo "export CPPFLAGS_FOR_BUILD=''" >> $@
$(VERBOSE)echo "export LDFLAGS_FOR_BUILD=''" >> $@
$(VERBOSE)echo "export LIBS_FOR_BUILD=''" >> $@
$(VERBOSE)echo "export LIBTOOLFLAGS='$(NOUX_LIBTOOLFLAGS)'" >> $@
$(VERBOSE)echo "export PS1='<noux>'" >> $@
#
# Invoke the 'Makefile' generated by the configure script
#
# The 'MAN=' argument prevent manual pages from being created. This would
# produce an error when the package uses the 'help2man' tool. This tool
# tries to extract the man page of a program by executing it with the
# '--help' argument on the host. However, we cannot run Genode binaries
# this way.
#
noux_built.tag: noux_env.sh Makefile
@$(MSG_BUILD)$(TARGET)
$(VERBOSE)source noux_env.sh && $(MAKE) $(NOUX_MAKE_ENV) $(NOUX_MAKE_VERBOSE) MAN= $(NOUX_BUILD_OUTPUT_FILTER)
@touch $@
NOUX_INSTALL_TARGET ?= install-strip
noux_installed.tag: noux_built.tag
@$(MSG_INST)$(TARGET)
$(VERBOSE)source noux_env.sh && $(MAKE) $(NOUX_MAKE_ENV) $(NOUX_MAKE_VERBOSE) $(NOUX_INSTALL_TARGET) DESTDIR=$(PWD)/install MAN= >> stdout.log 2>> stderr.log
$(VERBOSE)rm -f $(INSTALL_DIR)/$(TARGET)
$(VERBOSE)ln -sf $(PWD)/install $(INSTALL_DIR)/$(TARGET)
@touch $@
$(TARGET): noux_installed.tag
@touch $@
#
# The clean rule is expected to be executed within the 3rd-party build
# directory. The check should prevent serious damage if this condition
# is violated (e.g., while working on the build system).
#
ifeq ($(notdir $(PWD)),$(notdir $(PRG_DIR)))
clean_noux_build_dir:
$(VERBOSE)rm -rf $(PWD)
clean_prg_objects: clean_noux_build_dir
endif
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