mirror of
https://github.com/richfelker/musl-cross-make.git
synced 2025-03-10 00:56:59 +01:00
20ce424e65
these are not needed since the cross toolchain being used to build the native compiler already has its own libc and headers. but more importantly, due to lack of certain dependency chains that would be present for a cross compiler build, it was possible for two invocations of musl's make process to occur in parallel (one for temp sysroot headers, one for actual libc build). this could (and was observed to) lead to a race condition where alltypes.h was momentarily truncated in the middle of the libc build.
216 lines
5.6 KiB
Makefile
216 lines
5.6 KiB
Makefile
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OUTPUT = $(PWD)/output
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BINUTILS_SRCDIR = BINUTILS_SRCDIR_not_set
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GCC_SRCDIR = GCC_SRCDIR_not_set
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MUSL_SRCDIR = MUSL_SRCDIR_not_set
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COMMON_CONFIG = --enable-languages=c,c++
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GCC_CONFIG = $(COMMON_CONFIG)
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TOOLCHAIN_CONFIG = $(GCC_CONFIG)
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XGCC_DIR = ../obj_toolchain/gcc
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XGCC = $(XGCC_DIR)/xgcc -B $(XGCC_DIR)
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-include config.mak
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ifneq ($(findstring fdpic,$(TARGET)),)
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GCC_CONFIG += --enable-fdpic
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endif
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ifneq ($(filter x86_64%x32,$(TARGET)),)
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GCC_CONFIG += --with-abi=x32
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endif
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ifneq ($(findstring mips64,$(TARGET))$(findstring mipsisa64,$(TARGET)),)
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ifneq ($(findstring n32,$(TARGET)),)
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GCC_CONFIG += --with-abi=n32
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else
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GCC_CONFIG += --with-abi=64
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endif
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endif
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ifneq ($(filter %sf,$(TARGET)),)
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GCC_CONFIG += --with-float=soft
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endif
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ifneq ($(filter %hf,$(TARGET)),)
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GCC_CONFIG += --with-float=hard
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endif
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MAKE += MULTILIB_OSDIRNAMES=
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MAKE += INFO_DEPS= infodir=
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MAKE += ac_cv_prog_lex_root=lex.yy.c
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FULL_TOOLCHAIN_CONFIG = $(TOOLCHAIN_CONFIG) \
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--disable-werror \
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--target=$(TARGET) --prefix= \
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--libdir=/lib --disable-multilib \
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--with-sysroot=$(SYSROOT) \
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--with-build-sysroot='$$(LC_ROOT)/obj_sysroot' \
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--enable-tls \
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--disable-libmudflap --disable-libsanitizer \
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--disable-gnu-indirect-function \
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--disable-libmpx \
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--enable-libstdcxx-time
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FULL_MUSL_CONFIG = $(MUSL_CONFIG) \
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--prefix= --host=$(TARGET)
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ifeq ($(NATIVE),)
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SYSROOT = /$(TARGET)
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FULL_MUSL_CONFIG += CC="$(XGCC)" LIBCC="../obj_toolchain/$(TARGET)/libgcc/libgcc.a"
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MUSL_VARS = AR=../obj_toolchain/binutils/ar RANLIB=../obj_toolchain/binutils/ranlib
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obj_musl/.lc_built: | obj_toolchain/$(TARGET)/libgcc/libgcc.a
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obj_toolchain/.lc_built: | obj_sysroot/.lc_libs obj_sysroot/.lc_headers
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else
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SYSROOT = /
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FULL_TOOLCHAIN_CONFIG += --host=$(TARGET)
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MUSL_VARS =
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endif
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ifeq ($(TARGET),)
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all:
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@echo TARGET must be set.
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@exit 1
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install: all
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else
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all: musl toolchain
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install: install-musl install-toolchain
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musl: obj_musl/.lc_built
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toolchain: obj_toolchain/.lc_built
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.PHONY: all musl toolchain install-musl install-toolchain clean
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src_binutils: | $(BINUTILS_SRCDIR)
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ln -sf $(BINUTILS_SRCDIR) $@
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src_gcc: | $(GCC_SRCDIR)
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ln -sf $(GCC_SRCDIR) $@
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src_musl: | $(MUSL_SRCDIR)
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ln -sf $(MUSL_SRCDIR) $@
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ifneq ($(GMP_SRCDIR),)
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src_toolchain: src_gmp
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src_gmp: | $(GMP_SRCDIR)
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ln -sf "$(GMP_SRCDIR)" $@
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endif
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ifneq ($(MPC_SRCDIR),)
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src_toolchain: src_mpc
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src_mpc: | $(MPC_SRCDIR)
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ln -sf "$(MPC_SRCDIR)" $@
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endif
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ifneq ($(MPFR_SRCDIR),)
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src_toolchain: src_mpfr
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src_mpfr: | $(MPFR_SRCDIR)
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ln -sf "$(MPFR_SRCDIR)" $@
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endif
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ifneq ($(ISL_SRCDIR),)
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src_toolchain: src_isl
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src_isl: | $(ISL_SRCDIR)
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ln -sf "$(ISL_SRCDIR)" $@
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endif
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src_toolchain: src_binutils src_gcc
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rm -rf $@ $@.tmp
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mkdir $@.tmp
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cd $@.tmp && ln -sf ../src_binutils/* .
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cd $@.tmp && ln -sf ../src_gcc/* .
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$(if $(GMP_SRCDIR),cd $@.tmp && ln -sf ../src_gmp gmp)
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$(if $(MPC_SRCDIR),cd $@.tmp && ln -sf ../src_mpc mpc)
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$(if $(MPFR_SRCDIR),cd $@.tmp && ln -sf ../src_mpfr mpfr)
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$(if $(ISL_SRCDIR),cd $@.tmp && ln -sf ../src_isl isl)
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mv $@.tmp $@
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obj_%:
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mkdir -p $@
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obj_sysroot/include:
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mkdir -p $@
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obj_sysroot/usr: | obj_sysroot
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ln -sf . $@
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obj_sysroot/lib64: | obj_sysroot
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ln -sf lib $@
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obj_toolchain/.lc_configured: | obj_toolchain src_toolchain
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cd obj_toolchain && ../src_toolchain/configure $(FULL_TOOLCHAIN_CONFIG)
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touch $@
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obj_toolchain/gcc/.lc_built: | obj_toolchain/.lc_configured obj_sysroot/usr obj_sysroot/lib64 obj_sysroot/include
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cd obj_toolchain && $(MAKE) MAKE="$(MAKE)" LC_ROOT=$(PWD) all-gcc
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touch $@
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obj_musl/.lc_configured: | obj_toolchain/gcc/.lc_built obj_musl src_musl
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cd obj_musl && ../src_musl/configure $(FULL_MUSL_CONFIG)
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touch $@
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obj_sysroot/.lc_headers: | obj_musl/.lc_configured obj_sysroot
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cd obj_musl && $(MAKE) DESTDIR=$(PWD)/obj_sysroot install-headers
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touch $@
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obj_toolchain/$(TARGET)/libgcc/.lc_configured: | obj_sysroot/.lc_headers
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cd obj_toolchain && $(MAKE) MAKE="$(MAKE)" LC_ROOT=$(PWD) configure-target-libgcc
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touch $@
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obj_toolchain/$(TARGET)/libgcc/libgcc.a: | obj_toolchain/$(TARGET)/libgcc/.lc_configured
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cd $(dir $@) && $(MAKE) MAKE="$(MAKE)" LC_ROOT=$(PWD) libgcc.a
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obj_musl/.lc_built: | obj_musl/.lc_configured
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cd obj_musl && $(MAKE) $(MUSL_VARS)
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touch $@
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obj_sysroot/.lc_libs: | obj_musl/.lc_built
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cd obj_musl && $(MAKE) $(MUSL_VARS) DESTDIR=$(PWD)/obj_sysroot install
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touch $@
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obj_toolchain/.lc_built: | obj_toolchain/.lc_configured
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cd obj_toolchain && $(MAKE) MAKE="$(MAKE)" LC_ROOT=$(PWD)
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touch $@
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install-musl: | obj_musl/.lc_built
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cd obj_musl && $(MAKE) $(MUSL_VARS) DESTDIR=$(DESTDIR)$(OUTPUT)$(SYSROOT) install
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install-toolchain: | obj_toolchain/.lc_built
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cd obj_toolchain && $(MAKE) MAKE="$(MAKE)" LC_ROOT=$(PWD) DESTDIR=$(DESTDIR)$(OUTPUT) install
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ln -sf $(TARGET)-gcc $(DESTDIR)$(OUTPUT)/bin/$(TARGET)-cc
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ifneq ($(LINUX_SRCDIR),)
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TARGET_ARCH = $(firstword $(subst -, ,$(TARGET)))
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TARGET_ARCH_MANGLED = $(patsubst i%86,x86,$(patsubst aarch64%,arm64%,$(TARGET_ARCH)))
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LINUX_ARCH_LIST = $(sort $(notdir $(wildcard $(LINUX_SRCDIR)/arch/*)))
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LINUX_ARCH = $(firstword $(foreach a,$(LINUX_ARCH_LIST),$(findstring $(a),$(TARGET_ARCH_MANGLED))))
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ifneq ($(LINUX_ARCH),)
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all: kernel-headers
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install: install-kernel-headers
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kernel-headers: | obj_kernel_headers/.lc_built
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src_kernel_headers: | $(LINUX_SRCDIR)
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ln -sf "$(LINUX_SRCDIR)" $@
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obj_kernel_headers/.lc_built: | src_kernel_headers
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mkdir -p $(PWD)/obj_kernel_headers/staged
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cd src_kernel_headers && $(MAKE) ARCH=$(LINUX_ARCH) O=$(PWD)/obj_kernel_headers INSTALL_HDR_PATH=$(PWD)/obj_kernel_headers/staged headers_install
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touch $@
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install-kernel-headers: | obj_kernel_headers/.lc_built
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mkdir -p $(DESTDIR)$(OUTPUT)$(SYSROOT)/include
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cp -R obj_kernel_headers/staged/include/* $(DESTDIR)$(OUTPUT)$(SYSROOT)/include
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endif
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endif
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endif
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clean:
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rm -rf src_* obj_*
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