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musl-cross-make
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musl-cross-make/Makefile

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Makefile
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initial check-in
2015-08-25 21:32:46 +02:00
make sources directory customizable and dynamically created this allows sharing a sources directory between multiple checkouts or independent toolchain-using projects. also, during distclean, only remove the in-tree sources directory, not a custom/external one. this is a safety measure in case the SOURCES variable is set to something stupid like blank, root directory, or some large shared directory.
2015-11-10 02:11:56 +01:00
SOURCES = sources
initial check-in
2015-08-25 21:32:46 +02:00
overhaul build process with litecross, next-gen top-level makefile
2016-05-01 07:36:28 +02:00
CONFIG_SUB_REV = 3d5db9ebe860
update defaults to gcc 8.3.0, binutils 2.32
2019-05-27 01:25:39 +02:00
BINUTILS_VER = 2.32
GCC_VER = 8.3.0
update default musl version to 1.1.24
2019-11-10 18:34:26 +01:00
MUSL_VER = 1.1.24
update default versions of gcc-dependency math libraries
2019-07-16 19:41:33 +02:00
GMP_VER = 6.1.2
MPC_VER = 1.1.0
MPFR_VER = 4.0.2
switch linux kernel headers to 4.19.88 by default using slim headers-only version. this change is needed to support all future versions of musl on 32-bit archs, since prior to 4.16 the kernel headers had incompatibility with userspace time_t not matching the kernel's old (32-bit) time_t. support for older headers will be dropped entirely soon.
2019-12-18 20:29:07 +01:00
LINUX_VER = headers-4.19.88
initial check-in
2015-08-25 21:32:46 +02:00
overhaul build process with litecross, next-gen top-level makefile
2016-05-01 07:36:28 +02:00
GNU_SITE = https://ftp.gnu.org/pub/gnu
allow override of download sites via config.mak variables
2015-11-06 07:35:17 +01:00
GCC_SITE = $(GNU_SITE)/gcc
BINUTILS_SITE = $(GNU_SITE)/binutils
overhaul build process with litecross, next-gen top-level makefile
2016-05-01 07:36:28 +02:00
GMP_SITE = $(GNU_SITE)/gmp
MPC_SITE = $(GNU_SITE)/mpc
MPFR_SITE = $(GNU_SITE)/mpfr
add optional isl support for advanced loop optimizations isl-0.15 does not work before gcc-5.3.0, for older gcc try isl-0.14.1
2016-05-22 13:27:05 +02:00
ISL_SITE = http://isl.gforge.inria.fr/
allow override of download sites via config.mak variables
2015-11-06 07:35:17 +01:00
overhaul build process with litecross, next-gen top-level makefile
2016-05-01 07:36:28 +02:00
MUSL_SITE = https://www.musl-libc.org/releases
MUSL_REPO = git://git.musl-libc.org/musl
initial check-in
2015-08-25 21:32:46 +02:00
add support for installation of linux kernel headers this feature is still experimental and requires manually setting a LINUX_ARCH make variable matching the target. automatic mapping will be added later. if LINUX_ARCH is not set, header installation is skipped.
2016-05-14 06:14:52 +02:00
LINUX_SITE = https://cdn.kernel.org/pub/linux/kernel
add support for sabotage-linux' kernel-headers tarballs as maintained in https://github.com/sabotage-linux/kernel-headers . downloading (and extracting) a 100+ MB kernel source tarball just for the headers is extremely inefficient. sabotage linux' kernel-headers tarball provides the same (including musl compatibility fixes) in ~800 KB. in order to use it, specify LINUX_VER = headers-4.4.2-4 in your config.mak. if LINUX_VER lacks the "headers-" prefix, the official source tarball will be downloaded as usual.
2019-08-17 04:20:47 +02:00
LINUX_HEADERS_SITE = http://ftp.barfooze.de/pub/sabotage/tarballs/
add support for installation of linux kernel headers this feature is still experimental and requires manually setting a LINUX_ARCH make variable matching the target. automatic mapping will be added later. if LINUX_ARCH is not set, header installation is skipped.
2016-05-14 06:14:52 +02:00
allow using programs over than wget to download sources based on patch by Michael Forney, but using a plain variable without without the need for $(call ...). I used a different name for the variable so that it won't break if anyone has an HTTP_GET variable for use with the original patch in their config.mak.
2016-12-15 05:42:27 +01:00
DL_CMD = wget -c -O
integrate cowpatch for preservation of original source trees this makes it far easier to iterate testing of patches, and sets the stage for enforcing re-patching with makefile-level dependencies. the pristine sources are kept in directories suffixed with ".orig", and the unsuffixed directory now contains the result of running cowpatch -- that is, a mix of symlinks to the original files, and modified copies of the files/directories affected by patches.
2020-01-21 08:49:07 +01:00
COWPATCH = $(PWD)/cowpatch.sh
fix regression supporting HOST, NATIVE vars set from config.mak the logic for processing the NATIVE var (shortcut for HOST=$(TARGET)) and HOST var took place before inclusion of config.mak, causing NATIVE not to be honored and wrong BUILD_DIR and OUTPUT defaults to be used if either was set from config.mak rather than on the make command line. the current preferred interface is the command line, but the regression was unintentional. to fix it, replace the conditional blocks of the makefile with conditional functions in recursively-expanded variables HOST, BUILD_DIR, and OUTPUT. this way, assignments to NATIVE or HOST that take place later in config.mak will affect the resulting values, as intended.
2018-08-06 03:36:14 +02:00
HOST = $(if $(NATIVE),$(TARGET))
BUILD_DIR = build/$(if $(HOST),$(HOST),local)/$(TARGET)
OUTPUT = $(CURDIR)/output$(if $(HOST),-$(HOST))
add support for canadian-cross builds, reorganize dirs to avoid clashes cross (or native) compilers meant to be run on a host different from the build environment can now be built by setting the HOST make variable on the command line or in config.mak. this requires (for building the target libraries) a cross toolchain for the same TARGET, but that can run on the build system, to be present already in the PATH. future enhancements may make it possible to automatically build and use the needed toolchain. leaving HOST blank produces a toolchain that runs on the build system (host==build in gcc jargon), the same as before with NATIVE unset. the NATIVE make variable is now obsolete but still supported; it simply causes HOST to be set equal to TARGET (thus producing a native toolchain for the target). builds are now placed in build/$(HOST)/$(TARGET) when HOST is set, and build/local/$(TARGET) when it's not, so that builds for the same target but different host do not clobber each other. default OUTPUT directory when HOST is set is now output-$(HOST). as usual, multiple targets can safely go in the same output directory, but toolchains for different hosts should not.
2017-06-11 01:47:23 +02:00
REL_TOP = ../../..
initial check-in
2015-08-25 21:32:46 +02:00
-include config.mak
overhaul build process with litecross, next-gen top-level makefile
2016-05-01 07:36:28 +02:00
SRC_DIRS = gcc-$(GCC_VER) binutils-$(BINUTILS_VER) musl-$(MUSL_VER) \
$(if $(GMP_VER),gmp-$(GMP_VER)) \
$(if $(MPC_VER),mpc-$(MPC_VER)) \
add support for installation of linux kernel headers this feature is still experimental and requires manually setting a LINUX_ARCH make variable matching the target. automatic mapping will be added later. if LINUX_ARCH is not set, header installation is skipped.
2016-05-14 06:14:52 +02:00
$(if $(MPFR_VER),mpfr-$(MPFR_VER)) \
add optional isl support for advanced loop optimizations isl-0.15 does not work before gcc-5.3.0, for older gcc try isl-0.14.1
2016-05-22 13:27:05 +02:00
$(if $(ISL_VER),isl-$(ISL_VER)) \
add support for installation of linux kernel headers this feature is still experimental and requires manually setting a LINUX_ARCH make variable matching the target. automatic mapping will be added later. if LINUX_ARCH is not set, header installation is skipped.
2016-05-14 06:14:52 +02:00
$(if $(LINUX_VER),linux-$(LINUX_VER))
initial check-in
2015-08-25 21:32:46 +02:00
overhaul build process with litecross, next-gen top-level makefile
2016-05-01 07:36:28 +02:00
all:
initial check-in
2015-08-25 21:32:46 +02:00
add clean rules to makefile
2015-08-25 23:28:55 +02:00
clean:
fix regression in make clean commit 40005d3ff6b5674184c296e47e5dfff9a46a0be0 renamed the build directories from build-* to build/*. update make clean to remove the new build tree.
2017-06-23 05:06:38 +02:00
rm -rf gcc-* binutils-* musl-* gmp-* mpc-* mpfr-* isl-* build build-* linux-*
add clean rules to makefile
2015-08-25 23:28:55 +02:00
distclean: clean
make sources directory customizable and dynamically created this allows sharing a sources directory between multiple checkouts or independent toolchain-using projects. also, during distclean, only remove the in-tree sources directory, not a custom/external one. this is a safety measure in case the SOURCES variable is set to something stupid like blank, root directory, or some large shared directory.
2015-11-10 02:11:56 +01:00
rm -rf sources
initial check-in
2015-08-25 21:32:46 +02:00
replace steps directory with stamp files in source/build dirs this makes it easy to rebuild components simply by removing the source or build directory with rm -rf; no separate action on the steps files is needed. some dependencies are also changed to order-only so that update/rebuild of one component does not force unnecessary rebuild of another. new convenience pseudo-targets are also added.
2015-11-10 00:45:56 +01:00
overhaul build process with litecross, next-gen top-level makefile
2016-05-01 07:36:28 +02:00
# Rules for downloading and verifying sources. Treat an external SOURCES path as
# immutable and do not try to download anything into it.
replace steps directory with stamp files in source/build dirs this makes it easy to rebuild components simply by removing the source or build directory with rm -rf; no separate action on the steps files is needed. some dependencies are also changed to order-only so that update/rebuild of one component does not force unnecessary rebuild of another. new convenience pseudo-targets are also added.
2015-11-10 00:45:56 +01:00
overhaul build process with litecross, next-gen top-level makefile
2016-05-01 07:36:28 +02:00
ifeq ($(SOURCES),sources)
replace steps directory with stamp files in source/build dirs this makes it easy to rebuild components simply by removing the source or build directory with rm -rf; no separate action on the steps files is needed. some dependencies are also changed to order-only so that update/rebuild of one component does not force unnecessary rebuild of another. new convenience pseudo-targets are also added.
2015-11-10 00:45:56 +01:00
overhaul build process with litecross, next-gen top-level makefile
2016-05-01 07:36:28 +02:00
$(patsubst hashes/%.sha1,$(SOURCES)/%,$(wildcard hashes/gmp*)): SITE = $(GMP_SITE)
$(patsubst hashes/%.sha1,$(SOURCES)/%,$(wildcard hashes/mpc*)): SITE = $(MPC_SITE)
$(patsubst hashes/%.sha1,$(SOURCES)/%,$(wildcard hashes/mpfr*)): SITE = $(MPFR_SITE)
add optional isl support for advanced loop optimizations isl-0.15 does not work before gcc-5.3.0, for older gcc try isl-0.14.1
2016-05-22 13:27:05 +02:00
$(patsubst hashes/%.sha1,$(SOURCES)/%,$(wildcard hashes/isl*)): SITE = $(ISL_SITE)
overhaul build process with litecross, next-gen top-level makefile
2016-05-01 07:36:28 +02:00
$(patsubst hashes/%.sha1,$(SOURCES)/%,$(wildcard hashes/binutils*)): SITE = $(BINUTILS_SITE)
$(patsubst hashes/%.sha1,$(SOURCES)/%,$(wildcard hashes/gcc*)): SITE = $(GCC_SITE)/$(basename $(basename $(notdir $@)))
$(patsubst hashes/%.sha1,$(SOURCES)/%,$(wildcard hashes/musl*)): SITE = $(MUSL_SITE)
support installing headers for linux 4.x, 3.x and 2.6 kernels
2016-05-17 02:05:13 +02:00
$(patsubst hashes/%.sha1,$(SOURCES)/%,$(wildcard hashes/linux-4*)): SITE = $(LINUX_SITE)/v4.x
$(patsubst hashes/%.sha1,$(SOURCES)/%,$(wildcard hashes/linux-3*)): SITE = $(LINUX_SITE)/v3.x
$(patsubst hashes/%.sha1,$(SOURCES)/%,$(wildcard hashes/linux-2.6*)): SITE = $(LINUX_SITE)/v2.6
add support for sabotage-linux' kernel-headers tarballs as maintained in https://github.com/sabotage-linux/kernel-headers . downloading (and extracting) a 100+ MB kernel source tarball just for the headers is extremely inefficient. sabotage linux' kernel-headers tarball provides the same (including musl compatibility fixes) in ~800 KB. in order to use it, specify LINUX_VER = headers-4.4.2-4 in your config.mak. if LINUX_VER lacks the "headers-" prefix, the official source tarball will be downloaded as usual.
2019-08-17 04:20:47 +02:00
$(patsubst hashes/%.sha1,$(SOURCES)/%,$(wildcard hashes/linux-headers-*)): SITE = $(LINUX_HEADERS_SITE)
replace steps directory with stamp files in source/build dirs this makes it easy to rebuild components simply by removing the source or build directory with rm -rf; no separate action on the steps files is needed. some dependencies are also changed to order-only so that update/rebuild of one component does not force unnecessary rebuild of another. new convenience pseudo-targets are also added.
2015-11-10 00:45:56 +01:00
make sources directory customizable and dynamically created this allows sharing a sources directory between multiple checkouts or independent toolchain-using projects. also, during distclean, only remove the in-tree sources directory, not a custom/external one. this is a safety measure in case the SOURCES variable is set to something stupid like blank, root directory, or some large shared directory.
2015-11-10 02:11:56 +01:00
$(SOURCES):
mkdir -p $@
initial check-in
2015-08-25 21:32:46 +02:00
make sources directory customizable and dynamically created this allows sharing a sources directory between multiple checkouts or independent toolchain-using projects. also, during distclean, only remove the in-tree sources directory, not a custom/external one. this is a safety measure in case the SOURCES variable is set to something stupid like blank, root directory, or some large shared directory.
2015-11-10 02:11:56 +01:00
$(SOURCES)/config.sub: | $(SOURCES)
overhaul build process with litecross, next-gen top-level makefile
2016-05-01 07:36:28 +02:00
mkdir -p $@.tmp
allow using programs over than wget to download sources based on patch by Michael Forney, but using a plain variable without without the need for $(call ...). I used a different name for the variable so that it won't break if anyone has an HTTP_GET variable for use with the original patch in their config.mak.
2016-12-15 05:42:27 +01:00
cd $@.tmp && $(DL_CMD) $(notdir $@) "http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=$(CONFIG_SUB_REV)"
overhaul build process with litecross, next-gen top-level makefile
2016-05-01 07:36:28 +02:00
cd $@.tmp && touch $(notdir $@)
Use $(CURDIR) instead of $(PWD) in Makefile Some shells (in particular ksh) don't export PWD by default, so it doesn't end up as a make variable.
2016-12-02 08:14:01 +01:00
cd $@.tmp && sha1sum -c $(CURDIR)/hashes/$(notdir $@).$(CONFIG_SUB_REV).sha1
overhaul build process with litecross, next-gen top-level makefile
2016-05-01 07:36:28 +02:00
mv $@.tmp/$(notdir $@) $@
rm -rf $@.tmp
$(SOURCES)/%: hashes/%.sha1 | $(SOURCES)
mkdir -p $@.tmp
allow using programs over than wget to download sources based on patch by Michael Forney, but using a plain variable without without the need for $(call ...). I used a different name for the variable so that it won't break if anyone has an HTTP_GET variable for use with the original patch in their config.mak.
2016-12-15 05:42:27 +01:00
cd $@.tmp && $(DL_CMD) $(notdir $@) $(SITE)/$(notdir $@)
overhaul build process with litecross, next-gen top-level makefile
2016-05-01 07:36:28 +02:00
cd $@.tmp && touch $(notdir $@)
Use $(CURDIR) instead of $(PWD) in Makefile Some shells (in particular ksh) don't export PWD by default, so it doesn't end up as a make variable.
2016-12-02 08:14:01 +01:00
cd $@.tmp && sha1sum -c $(CURDIR)/hashes/$(notdir $@).sha1
overhaul build process with litecross, next-gen top-level makefile
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mv $@.tmp/$(notdir $@) $@
rm -rf $@.tmp
initial check-in
2015-08-25 21:32:46 +02:00
overhaul build process with litecross, next-gen top-level makefile
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endif
initial check-in
2015-08-25 21:32:46 +02:00
overhaul build process with litecross, next-gen top-level makefile
2016-05-01 07:36:28 +02:00
# Rules for extracting and patching sources, or checking them out from git.
initial check-in
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overhaul build process with litecross, next-gen top-level makefile
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musl-git-%:
rm -rf $@.tmp
git clone -b $(patsubst musl-git-%,%,$@) $(MUSL_REPO) $@.tmp
cd $@.tmp && git fsck
mv $@.tmp $@
initial check-in
2015-08-25 21:32:46 +02:00
integrate cowpatch for preservation of original source trees this makes it far easier to iterate testing of patches, and sets the stage for enforcing re-patching with makefile-level dependencies. the pristine sources are kept in directories suffixed with ".orig", and the unsuffixed directory now contains the result of running cowpatch -- that is, a mix of symlinks to the original files, and modified copies of the files/directories affected by patches.
2020-01-21 08:49:07 +01:00
%.orig: $(SOURCES)/%.tar.gz | $(SOURCES)/config.sub
overhaul build process with litecross, next-gen top-level makefile
2016-05-01 07:36:28 +02:00
rm -rf $@.tmp
mkdir $@.tmp
( cd $@.tmp && tar zxvf - ) < $<
rm -rf $@
integrate cowpatch for preservation of original source trees this makes it far easier to iterate testing of patches, and sets the stage for enforcing re-patching with makefile-level dependencies. the pristine sources are kept in directories suffixed with ".orig", and the unsuffixed directory now contains the result of running cowpatch -- that is, a mix of symlinks to the original files, and modified copies of the files/directories affected by patches.
2020-01-21 08:49:07 +01:00
touch $@.tmp/$(patsubst %.orig,%,$@)
mv $@.tmp/$(patsubst %.orig,%,$@) $@
overhaul build process with litecross, next-gen top-level makefile
2016-05-01 07:36:28 +02:00
rm -rf $@.tmp
initial check-in
2015-08-25 21:32:46 +02:00
integrate cowpatch for preservation of original source trees this makes it far easier to iterate testing of patches, and sets the stage for enforcing re-patching with makefile-level dependencies. the pristine sources are kept in directories suffixed with ".orig", and the unsuffixed directory now contains the result of running cowpatch -- that is, a mix of symlinks to the original files, and modified copies of the files/directories affected by patches.
2020-01-21 08:49:07 +01:00
%.orig: $(SOURCES)/%.tar.bz2 | $(SOURCES)/config.sub
overhaul build process with litecross, next-gen top-level makefile
2016-05-01 07:36:28 +02:00
rm -rf $@.tmp
mkdir $@.tmp
( cd $@.tmp && tar jxvf - ) < $<
rm -rf $@
integrate cowpatch for preservation of original source trees this makes it far easier to iterate testing of patches, and sets the stage for enforcing re-patching with makefile-level dependencies. the pristine sources are kept in directories suffixed with ".orig", and the unsuffixed directory now contains the result of running cowpatch -- that is, a mix of symlinks to the original files, and modified copies of the files/directories affected by patches.
2020-01-21 08:49:07 +01:00
touch $@.tmp/$(patsubst %.orig,%,$@)
mv $@.tmp/$(patsubst %.orig,%,$@) $@
overhaul build process with litecross, next-gen top-level makefile
2016-05-01 07:36:28 +02:00
rm -rf $@.tmp
initial check-in
2015-08-25 21:32:46 +02:00
integrate cowpatch for preservation of original source trees this makes it far easier to iterate testing of patches, and sets the stage for enforcing re-patching with makefile-level dependencies. the pristine sources are kept in directories suffixed with ".orig", and the unsuffixed directory now contains the result of running cowpatch -- that is, a mix of symlinks to the original files, and modified copies of the files/directories affected by patches.
2020-01-21 08:49:07 +01:00
%.orig: $(SOURCES)/%.tar.xz | $(SOURCES)/config.sub
add support for installation of linux kernel headers this feature is still experimental and requires manually setting a LINUX_ARCH make variable matching the target. automatic mapping will be added later. if LINUX_ARCH is not set, header installation is skipped.
2016-05-14 06:14:52 +02:00
rm -rf $@.tmp
mkdir $@.tmp
( cd $@.tmp && tar Jxvf - ) < $<
rm -rf $@
integrate cowpatch for preservation of original source trees this makes it far easier to iterate testing of patches, and sets the stage for enforcing re-patching with makefile-level dependencies. the pristine sources are kept in directories suffixed with ".orig", and the unsuffixed directory now contains the result of running cowpatch -- that is, a mix of symlinks to the original files, and modified copies of the files/directories affected by patches.
2020-01-21 08:49:07 +01:00
touch $@.tmp/$(patsubst %.orig,%,$@)
mv $@.tmp/$(patsubst %.orig,%,$@) $@
rm -rf $@.tmp
%: %.orig
add support for installation of linux kernel headers this feature is still experimental and requires manually setting a LINUX_ARCH make variable matching the target. automatic mapping will be added later. if LINUX_ARCH is not set, header installation is skipped.
2016-05-14 06:14:52 +02:00
rm -rf $@.tmp
integrate cowpatch for preservation of original source trees this makes it far easier to iterate testing of patches, and sets the stage for enforcing re-patching with makefile-level dependencies. the pristine sources are kept in directories suffixed with ".orig", and the unsuffixed directory now contains the result of running cowpatch -- that is, a mix of symlinks to the original files, and modified copies of the files/directories affected by patches.
2020-01-21 08:49:07 +01:00
mkdir $@.tmp
make initialization of cow source trees robust shell glob of ../$</* fails to catch filenames beginning with dot, and the easy mitigations for that all produce bad results on non-match. use find to do it robustly.
2020-01-22 05:49:56 +01:00
( cd $@.tmp && find ../$< -path '*/*/*' -prune -exec sh -c 'ln -s "$$@" .' {} + )
integrate cowpatch for preservation of original source trees this makes it far easier to iterate testing of patches, and sets the stage for enforcing re-patching with makefile-level dependencies. the pristine sources are kept in directories suffixed with ".orig", and the unsuffixed directory now contains the result of running cowpatch -- that is, a mix of symlinks to the original files, and modified copies of the files/directories affected by patches.
2020-01-21 08:49:07 +01:00
test ! -d patches/$@ || cat patches/$@/* | ( cd $@.tmp && $(COWPATCH) -p1 )
test ! -f $</config.sub || ( rm -f $@.tmp/config.sub && cp -f $(SOURCES)/config.sub $@.tmp/ )
mv $@.tmp $@
add support for installation of linux kernel headers this feature is still experimental and requires manually setting a LINUX_ARCH make variable matching the target. automatic mapping will be added later. if LINUX_ARCH is not set, header installation is skipped.
2016-05-14 06:14:52 +02:00
add extract_all rule to top-level makefile this is useful for preparing to automate multiple builds using shared source trees. otherwise concurrent builds could clash attempting to extract the same source trees.
2016-07-08 01:58:01 +02:00
extract_all: | $(SRC_DIRS)
initial check-in
2015-08-25 21:32:46 +02:00
overhaul build process with litecross, next-gen top-level makefile
2016-05-01 07:36:28 +02:00
# Rules for building.
initial check-in
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overhaul build process with litecross, next-gen top-level makefile
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ifeq ($(TARGET),)
initial check-in
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overhaul build process with litecross, next-gen top-level makefile
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all:
@echo TARGET must be set via config.mak or command line.
@exit 1
initial check-in
2015-08-25 21:32:46 +02:00
overhaul build process with litecross, next-gen top-level makefile
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else
initial check-in
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overhaul build process with litecross, next-gen top-level makefile
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$(BUILD_DIR):
mkdir -p $@
initial check-in
2015-08-25 21:32:46 +02:00
overhaul build process with litecross, next-gen top-level makefile
2016-05-01 07:36:28 +02:00
$(BUILD_DIR)/Makefile: | $(BUILD_DIR)
add support for canadian-cross builds, reorganize dirs to avoid clashes cross (or native) compilers meant to be run on a host different from the build environment can now be built by setting the HOST make variable on the command line or in config.mak. this requires (for building the target libraries) a cross toolchain for the same TARGET, but that can run on the build system, to be present already in the PATH. future enhancements may make it possible to automatically build and use the needed toolchain. leaving HOST blank produces a toolchain that runs on the build system (host==build in gcc jargon), the same as before with NATIVE unset. the NATIVE make variable is now obsolete but still supported; it simply causes HOST to be set equal to TARGET (thus producing a native toolchain for the target). builds are now placed in build/$(HOST)/$(TARGET) when HOST is set, and build/local/$(TARGET) when it's not, so that builds for the same target but different host do not clobber each other. default OUTPUT directory when HOST is set is now output-$(HOST). as usual, multiple targets can safely go in the same output directory, but toolchains for different hosts should not.
2017-06-11 01:47:23 +02:00
ln -sf $(REL_TOP)/litecross/Makefile $@
initial check-in
2015-08-25 21:32:46 +02:00
overhaul build process with litecross, next-gen top-level makefile
2016-05-01 07:36:28 +02:00
$(BUILD_DIR)/config.mak: | $(BUILD_DIR)
Don't pass -- to printf POSIX says that printf has no options and doesn't have to conform to the utility syntax guidelines (which include -- handling).
2016-12-02 08:07:03 +01:00
printf >$@ '%s\n' \
add support for canadian-cross builds, reorganize dirs to avoid clashes cross (or native) compilers meant to be run on a host different from the build environment can now be built by setting the HOST make variable on the command line or in config.mak. this requires (for building the target libraries) a cross toolchain for the same TARGET, but that can run on the build system, to be present already in the PATH. future enhancements may make it possible to automatically build and use the needed toolchain. leaving HOST blank produces a toolchain that runs on the build system (host==build in gcc jargon), the same as before with NATIVE unset. the NATIVE make variable is now obsolete but still supported; it simply causes HOST to be set equal to TARGET (thus producing a native toolchain for the target). builds are now placed in build/$(HOST)/$(TARGET) when HOST is set, and build/local/$(TARGET) when it's not, so that builds for the same target but different host do not clobber each other. default OUTPUT directory when HOST is set is now output-$(HOST). as usual, multiple targets can safely go in the same output directory, but toolchains for different hosts should not.
2017-06-11 01:47:23 +02:00
"TARGET = $(TARGET)" \
"HOST = $(HOST)" \
"MUSL_SRCDIR = $(REL_TOP)/musl-$(MUSL_VER)" \
"GCC_SRCDIR = $(REL_TOP)/gcc-$(GCC_VER)" \
"BINUTILS_SRCDIR = $(REL_TOP)/binutils-$(BINUTILS_VER)" \
$(if $(GMP_VER),"GMP_SRCDIR = $(REL_TOP)/gmp-$(GMP_VER)") \
$(if $(MPC_VER),"MPC_SRCDIR = $(REL_TOP)/mpc-$(MPC_VER)") \
$(if $(MPFR_VER),"MPFR_SRCDIR = $(REL_TOP)/mpfr-$(MPFR_VER)") \
$(if $(ISL_VER),"ISL_SRCDIR = $(REL_TOP)/isl-$(ISL_VER)") \
$(if $(LINUX_VER),"LINUX_SRCDIR = $(REL_TOP)/linux-$(LINUX_VER)") \
"-include $(REL_TOP)/config.mak"
initial check-in
2015-08-25 21:32:46 +02:00
overhaul build process with litecross, next-gen top-level makefile
2016-05-01 07:36:28 +02:00
all: | $(SRC_DIRS) $(BUILD_DIR) $(BUILD_DIR)/Makefile $(BUILD_DIR)/config.mak
cd $(BUILD_DIR) && $(MAKE) $@
initial check-in
2015-08-25 21:32:46 +02:00
overhaul build process with litecross, next-gen top-level makefile
2016-05-01 07:36:28 +02:00
install: | $(SRC_DIRS) $(BUILD_DIR) $(BUILD_DIR)/Makefile $(BUILD_DIR)/config.mak
cd $(BUILD_DIR) && $(MAKE) OUTPUT=$(OUTPUT) $@
initial check-in
2015-08-25 21:32:46 +02:00
overhaul build process with litecross, next-gen top-level makefile
2016-05-01 07:36:28 +02:00
endif
integrate cowpatch for preservation of original source trees this makes it far easier to iterate testing of patches, and sets the stage for enforcing re-patching with makefile-level dependencies. the pristine sources are kept in directories suffixed with ".orig", and the unsuffixed directory now contains the result of running cowpatch -- that is, a mix of symlinks to the original files, and modified copies of the files/directories affected by patches.
2020-01-21 08:49:07 +01:00
.SECONDARY: