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40005d3ff6
musl-cross-make/litecross/Makefile
Rich Felker 40005d3ff6 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.
2017-06-10 19:47:23 -04:00

228 lines
5.9 KiB
Makefile
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OUTPUT = $(CURDIR)/output
BINUTILS_SRCDIR = BINUTILS_SRCDIR_not_set
GCC_SRCDIR = GCC_SRCDIR_not_set
MUSL_SRCDIR = MUSL_SRCDIR_not_set
GCC_CONFIG_FOR_TARGET =
COMMON_CONFIG =
GCC_CONFIG =
TOOLCHAIN_CONFIG =
XGCC_DIR = ../obj_toolchain/gcc
XGCC = $(XGCC_DIR)/xgcc -B $(XGCC_DIR)
-include config.mak
ifneq ($(findstring fdpic,$(TARGET)),)
GCC_CONFIG_FOR_TARGET += --enable-fdpic
endif
ifneq ($(filter x86_64%x32,$(TARGET)),)
GCC_CONFIG_FOR_TARGET += --with-abi=x32
endif
ifneq ($(findstring powerpc64,$(TARGET)),)
GCC_CONFIG_FOR_TARGET += --with-abi=elfv2
endif
ifneq ($(findstring mips64,$(TARGET))$(findstring mipsisa64,$(TARGET)),)
ifneq ($(findstring n32,$(TARGET)),)
GCC_CONFIG_FOR_TARGET += --with-abi=n32
else
GCC_CONFIG_FOR_TARGET += --with-abi=64
endif
endif
ifneq ($(filter %sf,$(TARGET)),)
GCC_CONFIG_FOR_TARGET += --with-float=soft
endif
ifneq ($(filter %hf,$(TARGET)),)
GCC_CONFIG_FOR_TARGET += --with-float=hard
endif
MAKE += MULTILIB_OSDIRNAMES=
MAKE += INFO_DEPS= infodir=
MAKE += ac_cv_prog_lex_root=lex.yy.c
MAKE += MAKEINFO=false
FULL_TOOLCHAIN_CONFIG = --enable-languages=c,c++ \
$(GCC_CONFIG_FOR_TARGET) \
$(COMMON_CONFIG) $(GCC_CONFIG) $(TOOLCHAIN_CONFIG) \
--disable-werror \
--target=$(TARGET) --prefix= \
--libdir=/lib --disable-multilib \
--with-sysroot=$(SYSROOT) \
--enable-tls \
--disable-libmudflap --disable-libsanitizer \
--disable-gnu-indirect-function \
--disable-libmpx \
--enable-deterministic-archives \
--enable-libstdcxx-time
FULL_MUSL_CONFIG = $(MUSL_CONFIG) \
--prefix= --host=$(TARGET)
ifneq ($(NATIVE),)
HOST:=$(TARGET)
endif
ifeq ($(HOST),)
SYSROOT = /$(TARGET)
FULL_TOOLCHAIN_CONFIG += --with-build-sysroot=$(CURDIR)/obj_sysroot
FULL_MUSL_CONFIG += CC="$(XGCC)" LIBCC="../obj_toolchain/$(TARGET)/libgcc/libgcc.a"
MUSL_VARS = AR=../obj_toolchain/binutils/ar RANLIB=../obj_toolchain/binutils/ranlib
obj_musl/.lc_configured: | obj_toolchain/gcc/.lc_built
obj_musl/.lc_built: | obj_toolchain/$(TARGET)/libgcc/libgcc.a
obj_toolchain/gcc/.lc_built: | obj_sysroot/usr obj_sysroot/lib64 obj_sysroot/include
obj_toolchain/.lc_built: | obj_sysroot/.lc_libs obj_sysroot/.lc_headers
else
SYSROOT = /
FULL_TOOLCHAIN_CONFIG += --host=$(HOST)
MUSL_VARS =
endif
ifeq ($(TARGET),)
all:
@echo TARGET must be set.
@exit 1
install: all
else
all: musl toolchain
install: install-musl install-toolchain
musl: obj_musl/.lc_built
toolchain: obj_toolchain/.lc_built
.PHONY: all musl toolchain install-musl install-toolchain clean
src_binutils: | $(BINUTILS_SRCDIR)
ln -sf $(BINUTILS_SRCDIR) $@
src_gcc: | $(GCC_SRCDIR)
ln -sf $(GCC_SRCDIR) $@
src_musl: | $(MUSL_SRCDIR)
ln -sf $(MUSL_SRCDIR) $@
ifneq ($(GMP_SRCDIR),)
src_toolchain: src_gmp
src_gmp: | $(GMP_SRCDIR)
ln -sf "$(GMP_SRCDIR)" $@
endif
ifneq ($(MPC_SRCDIR),)
src_toolchain: src_mpc
src_mpc: | $(MPC_SRCDIR)
ln -sf "$(MPC_SRCDIR)" $@
endif
ifneq ($(MPFR_SRCDIR),)
src_toolchain: src_mpfr
src_mpfr: | $(MPFR_SRCDIR)
ln -sf "$(MPFR_SRCDIR)" $@
endif
ifneq ($(ISL_SRCDIR),)
src_toolchain: src_isl
src_isl: | $(ISL_SRCDIR)
ln -sf "$(ISL_SRCDIR)" $@
endif
src_toolchain: src_binutils src_gcc
rm -rf $@ $@.tmp
mkdir $@.tmp
cd $@.tmp && ln -sf ../src_binutils/* .
cd $@.tmp && ln -sf ../src_gcc/* .
$(if $(GMP_SRCDIR),cd $@.tmp && ln -sf ../src_gmp gmp)
$(if $(MPC_SRCDIR),cd $@.tmp && ln -sf ../src_mpc mpc)
$(if $(MPFR_SRCDIR),cd $@.tmp && ln -sf ../src_mpfr mpfr)
$(if $(ISL_SRCDIR),cd $@.tmp && ln -sf ../src_isl isl)
mv $@.tmp $@
obj_%:
mkdir -p $@
obj_sysroot/include:
mkdir -p $@
obj_sysroot/usr: | obj_sysroot
ln -sf . $@
obj_sysroot/lib64: | obj_sysroot
ln -sf lib $@
obj_toolchain/.lc_configured: | obj_toolchain src_toolchain
cd obj_toolchain && ../src_toolchain/configure $(FULL_TOOLCHAIN_CONFIG)
touch $@
obj_toolchain/gcc/.lc_built: | obj_toolchain/.lc_configured
cd obj_toolchain && $(MAKE) MAKE="$(MAKE)" all-gcc
touch $@
obj_musl/.lc_configured: | obj_musl src_musl
cd obj_musl && ../src_musl/configure $(FULL_MUSL_CONFIG)
touch $@
obj_sysroot/.lc_headers: | obj_musl/.lc_configured obj_sysroot
cd obj_musl && $(MAKE) DESTDIR=$(CURDIR)/obj_sysroot install-headers
touch $@
obj_toolchain/$(TARGET)/libgcc/libgcc.a: | obj_sysroot/.lc_headers
cd obj_toolchain && $(MAKE) MAKE="$(MAKE) enable_shared=no" all-target-libgcc
obj_musl/.lc_built: | obj_musl/.lc_configured
cd obj_musl && $(MAKE) $(MUSL_VARS)
touch $@
obj_sysroot/.lc_libs: | obj_musl/.lc_built
cd obj_musl && $(MAKE) $(MUSL_VARS) DESTDIR=$(CURDIR)/obj_sysroot install
touch $@
obj_toolchain/.lc_built: | obj_toolchain/.lc_configured obj_toolchain/gcc/.lc_built
cd obj_toolchain && $(MAKE) MAKE="$(MAKE)"
touch $@
install-musl: | obj_musl/.lc_built
cd obj_musl && $(MAKE) $(MUSL_VARS) DESTDIR=$(DESTDIR)$(OUTPUT)$(SYSROOT) install
install-toolchain: | obj_toolchain/.lc_built
cd obj_toolchain && $(MAKE) MAKE="$(MAKE)" DESTDIR=$(DESTDIR)$(OUTPUT) install
ln -sf $(TARGET)-gcc $(DESTDIR)$(OUTPUT)/bin/$(TARGET)-cc
ifneq ($(LINUX_SRCDIR),)
TARGET_ARCH = $(firstword $(subst -, ,$(TARGET)))
TARGET_ARCH_MANGLED = $(patsubst i%86,x86,$(patsubst aarch64%,arm64%,$(TARGET_ARCH)))
LINUX_ARCH_LIST = $(sort $(notdir $(wildcard $(LINUX_SRCDIR)/arch/*)))
LINUX_ARCH = $(firstword $(foreach a,$(LINUX_ARCH_LIST),$(findstring $(a),$(TARGET_ARCH_MANGLED))))
ifneq ($(LINUX_ARCH),)
all: kernel-headers
install: install-kernel-headers
kernel-headers: | obj_kernel_headers/.lc_built
src_kernel_headers: | $(LINUX_SRCDIR)
ln -sf "$(LINUX_SRCDIR)" $@
obj_kernel_headers/.lc_built: | src_kernel_headers
mkdir -p $(CURDIR)/obj_kernel_headers/staged
cd src_kernel_headers && $(MAKE) ARCH=$(LINUX_ARCH) O=$(CURDIR)/obj_kernel_headers INSTALL_HDR_PATH=$(CURDIR)/obj_kernel_headers/staged headers_install
find obj_kernel_headers/staged/include '(' -name .install -o -name ..install.cmd ')' -exec rm {} +
touch $@
install-kernel-headers: | obj_kernel_headers/.lc_built
mkdir -p $(DESTDIR)$(OUTPUT)$(SYSROOT)/include
cp -R obj_kernel_headers/staged/include/* $(DESTDIR)$(OUTPUT)$(SYSROOT)/include
endif
endif
endif
clean:
rm -rf src_* obj_*
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