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genode/repos/ports/mk/gnu_build.mk

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ports: GNU build-system support for non-noux pkgs This patch makes the build-system integration of noux packages usable for non-Noux targets. It moves the GNU build system wrapper to ports/mk/gnu_build.mk, which is now included by noux.mk. This way, non-noux applications can use the same build-system wrapper. So the porting of individual applications becomes easier. This change removes the 'NOUX_' prefix use the various build variables used by the noux-pkg's target.mk files to steer the behaviour of the GNU build system. E.g., NOUX_CONFIGURE_ARGS is now called CONFIGURE_ARGS. Note that there is a single exception to this pattern: The formerly named NOUX_LIBS is now called LDLIBS because the plain LIBS variable is used by the Genode build system. Fixes #2094
2016-09-11 19:13:27 +00:00
#
# \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 '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 package is changed, the package gets not relinked
# automatically. In this case, 'make clean' must be invoked manually within the
# build subdirectory of the package.
#
#
# Use name of the directory hosting the 'target.mk' file as 'TARGET'
# and 'PKG' by default.
#
TARGET ?= $(lastword $(subst /, ,$(PRG_DIR)))
PKG ?= $(TARGET)
Simpify startup of dynamically linked binaries This patch removes the component_entry_point library, which used to proved a hook for the libc to intercept the call of the 'Component::construct' function. The mechansim has several shortcomings (see the discussion in the associated issue) and was complex. So we eventually discarded the approach in favor of the explicit handling of the startup. A regular Genode component provides a 'Component::construct' function, which is determined by the dynamic linker via a symbol lookup. For the time being, the dynamic linker falls back to looking up a 'main' function if no 'Component::construct' function could be found. The libc provides an implementation of 'Component::construct', which sets up the libc's task handling and finally call the function 'Libc::Component::construct' from the context of the appllication task. This function is expected to be provided by the libc-using application. Consequently, Genode components that use the libc have to implement the 'Libc::Component::construct' function. The new 'posix' library provides an implementation of 'Libc::Component::construct' that calls a main function. Hence, POSIX programs that merely use the POSIX API merely have to add 'posix' to the 'LIBS' declaration in their 'target.mk' file. Their execution starts at 'main'. Issue #2199
2016-12-22 14:01:19 +00:00
LIBS += posix
ports: GNU build-system support for non-noux pkgs This patch makes the build-system integration of noux packages usable for non-Noux targets. It moves the GNU build system wrapper to ports/mk/gnu_build.mk, which is now included by noux.mk. This way, non-noux applications can use the same build-system wrapper. So the porting of individual applications becomes easier. This change removes the 'NOUX_' prefix use the various build variables used by the noux-pkg's target.mk files to steer the behaviour of the GNU build system. E.g., NOUX_CONFIGURE_ARGS is now called CONFIGURE_ARGS. Note that there is a single exception to this pattern: The formerly named NOUX_LIBS is now called LDLIBS because the plain LIBS variable is used by the Genode build system. Fixes #2094
2016-09-11 19:13:27 +00:00
PWD = $(shell pwd)
#
# Detect missing preparation ofpackage
#
ifeq ($(PKG_DIR),)
REQUIRES += prepare_$(PKG)
endif
#
# Verbose build
#
ifeq ($(VERBOSE),)
MAKE_VERBOSE = V=1
CONFIGURE_VERBOSE =
#
# Non-verbose build
#
else
MAKE_VERBOSE = -s
CONFIGURE_VERBOSE = --quiet
# filter for configure output of package
CONFIGURE_OUTPUT_FILTER = > stdout.log 2> stderr.log ||\
(echo "Error: configure script of $(PKG) failed" && \
cat stderr.log && false)
# filter for make output of package
BUILD_OUTPUT_FILTER = 2>&1 | sed "s/^/ [$(PKG)] /"
endif
ifeq ($(findstring arm, $(SPECS)), arm)
CONFIGURE_ARGS += --host arm-none-eabi
else
ifeq ($(findstring x86, $(SPECS)), x86)
CONFIGURE_ARGS += --host x86_64-pc-elf
endif
endif
CONFIGURE_ARGS += --srcdir=$(PKG_DIR)
CONFIGURE_ARGS += --prefix /
CONFIG_GUESS_SCRIPT = $(PKG_DIR)/config.guess
ifneq ($(wildcard $(CONFIG_GUESS_SCRIPT)),)
CONFIGURE_ARGS += --build $(shell $(CONFIG_GUESS_SCRIPT))
else
CONFIGURE_ARGS += --build x86-linux
endif
CONFIGURE_ARGS += $(CONFIGURE_VERBOSE)
LDFLAGS += -nostdlib $(CXX_LINK_OPT) $(CC_MARCH) -Wl,-T$(LD_SCRIPT_DYN) \
Generalize ABI mechanism to shared objects This patch make the ABI mechanism available to shared libraries other than Genode's dynamic linker. It thereby allows us to introduce intermediate ABIs at the granularity of shared libraries. This is useful for slow-moving ABIs such as the libc's interface but it will also become handy for the package management. To implement the feature, the build system had to be streamlined a bit. In particular, archive dependencies and shared-lib dependencies are now handled separately, and the global list of 'SHARED_LIBS' is no more. Now, the variable with the same name holds the per-target list of shared libraries used by the target.
2016-12-29 17:27:45 +00:00
-Wl,-rpath-link=$(PWD) \
-Wl,--dynamic-linker=$(DYNAMIC_LINKER).lib.so \
-Wl,--eh-frame-hdr
ports: GNU build-system support for non-noux pkgs This patch makes the build-system integration of noux packages usable for non-Noux targets. It moves the GNU build system wrapper to ports/mk/gnu_build.mk, which is now included by noux.mk. This way, non-noux applications can use the same build-system wrapper. So the porting of individual applications becomes easier. This change removes the 'NOUX_' prefix use the various build variables used by the noux-pkg's target.mk files to steer the behaviour of the GNU build system. E.g., NOUX_CONFIGURE_ARGS is now called CONFIGURE_ARGS. Note that there is a single exception to this pattern: The formerly named NOUX_LIBS is now called LDLIBS because the plain LIBS variable is used by the Genode build system. Fixes #2094
2016-09-11 19:13:27 +00:00
LIBTOOLFLAGS = --preserve-dup-deps
LIBGCC = $(shell $(CC) $(CC_MARCH) -print-libgcc-file-name)
CPPFLAGS += -nostdinc $(INCLUDES)
CPPFLAGS += -D_GNU_SOURCE=1
# flags to be used in both CFLAGS and CXXFLAGS
COMMON_CFLAGS_CXXFLAGS += -ffunction-sections $(CC_OLEVEL) $(CC_MARCH)
COMMON_CFLAGS_CXXFLAGS += -g
Generalize ABI mechanism to shared objects This patch make the ABI mechanism available to shared libraries other than Genode's dynamic linker. It thereby allows us to introduce intermediate ABIs at the granularity of shared libraries. This is useful for slow-moving ABIs such as the libc's interface but it will also become handy for the package management. To implement the feature, the build system had to be streamlined a bit. In particular, archive dependencies and shared-lib dependencies are now handled separately, and the global list of 'SHARED_LIBS' is no more. Now, the variable with the same name holds the per-target list of shared libraries used by the target.
2016-12-29 17:27:45 +00:00
CFLAGS += $(COMMON_CFLAGS_CXXFLAGS)
ports: GNU build-system support for non-noux pkgs This patch makes the build-system integration of noux packages usable for non-Noux targets. It moves the GNU build system wrapper to ports/mk/gnu_build.mk, which is now included by noux.mk. This way, non-noux applications can use the same build-system wrapper. So the porting of individual applications becomes easier. This change removes the 'NOUX_' prefix use the various build variables used by the noux-pkg's target.mk files to steer the behaviour of the GNU build system. E.g., NOUX_CONFIGURE_ARGS is now called CONFIGURE_ARGS. Note that there is a single exception to this pattern: The formerly named NOUX_LIBS is now called LDLIBS because the plain LIBS variable is used by the Genode build system. Fixes #2094
2016-09-11 19:13:27 +00:00
CXXFLAGS += $(COMMON_CFLAGS_CXXFLAGS)
#
# 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.
#
Generalize ABI mechanism to shared objects This patch make the ABI mechanism available to shared libraries other than Genode's dynamic linker. It thereby allows us to introduce intermediate ABIs at the granularity of shared libraries. This is useful for slow-moving ABIs such as the libc's interface but it will also become handy for the package management. To implement the feature, the build system had to be streamlined a bit. In particular, archive dependencies and shared-lib dependencies are now handled separately, and the global list of 'SHARED_LIBS' is no more. Now, the variable with the same name holds the per-target list of shared libraries used by the target.
2016-12-29 17:27:45 +00:00
LDLIBS_A = $(filter %.a, $(sort $(STATIC_LIBS)) $(EXT_OBJECTS) $(LIBGCC))
LDLIBS_SO = $(addprefix $(PWD)/,$(sort $(SHARED_LIBS)))
Simpify startup of dynamically linked binaries This patch removes the component_entry_point library, which used to proved a hook for the libc to intercept the call of the 'Component::construct' function. The mechansim has several shortcomings (see the discussion in the associated issue) and was complex. So we eventually discarded the approach in favor of the explicit handling of the startup. A regular Genode component provides a 'Component::construct' function, which is determined by the dynamic linker via a symbol lookup. For the time being, the dynamic linker falls back to looking up a 'main' function if no 'Component::construct' function could be found. The libc provides an implementation of 'Component::construct', which sets up the libc's task handling and finally call the function 'Libc::Component::construct' from the context of the appllication task. This function is expected to be provided by the libc-using application. Consequently, Genode components that use the libc have to implement the 'Libc::Component::construct' function. The new 'posix' library provides an implementation of 'Libc::Component::construct' that calls a main function. Hence, POSIX programs that merely use the POSIX API merely have to add 'posix' to the 'LIBS' declaration in their 'target.mk' file. Their execution starts at 'main'. Issue #2199
2016-12-22 14:01:19 +00:00
LDLIBS += $(LDLIBS_A) $(LDLIBS_SO) $(LDLIBS_A)
ports: GNU build-system support for non-noux pkgs This patch makes the build-system integration of noux packages usable for non-Noux targets. It moves the GNU build system wrapper to ports/mk/gnu_build.mk, which is now included by noux.mk. This way, non-noux applications can use the same build-system wrapper. So the porting of individual applications becomes easier. This change removes the 'NOUX_' prefix use the various build variables used by the noux-pkg's target.mk files to steer the behaviour of the GNU build system. E.g., NOUX_CONFIGURE_ARGS is now called CONFIGURE_ARGS. Note that there is a single exception to this pattern: The formerly named NOUX_LIBS is now called LDLIBS because the plain LIBS variable is used by the Genode build system. Fixes #2094
2016-09-11 19:13:27 +00:00
#
# Re-configure the Makefile if the Genode build environment changes
#
Makefile reconfigure: $(MAKEFILE_LIST)
#
# Invoke configure script with the Genode environment
#
Generalize ABI mechanism to shared objects This patch make the ABI mechanism available to shared libraries other than Genode's dynamic linker. It thereby allows us to introduce intermediate ABIs at the granularity of shared libraries. This is useful for slow-moving ABIs such as the libc's interface but it will also become handy for the package management. To implement the feature, the build system had to be streamlined a bit. In particular, archive dependencies and shared-lib dependencies are now handled separately, and the global list of 'SHARED_LIBS' is no more. Now, the variable with the same name holds the per-target list of shared libraries used by the target.
2016-12-29 17:27:45 +00:00
Makefile reconfigure: env.sh $(SHARED_LIBS)
ports: GNU build-system support for non-noux pkgs This patch makes the build-system integration of noux packages usable for non-Noux targets. It moves the GNU build system wrapper to ports/mk/gnu_build.mk, which is now included by noux.mk. This way, non-noux applications can use the same build-system wrapper. So the porting of individual applications becomes easier. This change removes the 'NOUX_' prefix use the various build variables used by the noux-pkg's target.mk files to steer the behaviour of the GNU build system. E.g., NOUX_CONFIGURE_ARGS is now called CONFIGURE_ARGS. Note that there is a single exception to this pattern: The formerly named NOUX_LIBS is now called LDLIBS because the plain LIBS variable is used by the Genode build system. Fixes #2094
2016-09-11 19:13:27 +00:00
@$(MSG_CONFIG)$(TARGET)
$(VERBOSE)source env.sh && $(PKG_DIR)/configure $(ENV) $(CONFIGURE_ARGS) $(CONFIGURE_OUTPUT_FILTER)
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)'" >> $@
$(VERBOSE)echo "export CPPFLAGS='$(CPPFLAGS)'" >> $@
$(VERBOSE)echo "export CFLAGS='$(CFLAGS)'" >> $@
$(VERBOSE)echo "export CXXFLAGS='$(CXXFLAGS)'" >> $@
$(VERBOSE)echo "export LDFLAGS='$(LDFLAGS)'" >> $@
$(VERBOSE)echo "export LIBS='$(LDLIBS)'" >> $@
$(VERBOSE)echo "export LIBTOOLFLAGS='$(LIBTOOLFLAGS)'" >> $@
$(VERBOSE)echo "export PS1='<gnu_build>'" >> $@
#
# Invoke the 'Makefile' generated by the configure script
#
# The 'MAN=' argument prevent manual pages from being created. This would
# produce an error when the package uses the 'help2man' tool. This tool
# tries to extract the man page of a program by executing it with the
# '--help' argument on the host. However, we cannot run Genode binaries
# this way.
#
built.tag: env.sh Makefile
@$(MSG_BUILD)$(TARGET)
$(VERBOSE)source env.sh && $(MAKE) $(MAKE_ENV) $(MAKE_VERBOSE) MAN= $(BUILD_OUTPUT_FILTER)
@touch $@
INSTALL_TARGET ?= install-strip
installed.tag: built.tag
@$(MSG_INST)$(TARGET)
$(VERBOSE)source env.sh && $(MAKE) $(MAKE_ENV) $(MAKE_VERBOSE) $(INSTALL_TARGET) DESTDIR=$(PWD)/install MAN= >> stdout.log 2>> stderr.log
$(VERBOSE)rm -f $(INSTALL_DIR)/$(TARGET)
$(VERBOSE)ln -sf $(PWD)/install $(INSTALL_DIR)/$(TARGET)
@touch $@
$(TARGET): 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_dir:
$(VERBOSE)rm -rf $(PWD)/* $(PWD)/.*
clean_prg_objects: clean_dir
endif
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