marvin.weiler
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musl-cross-make
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litecross: add support for cross-compiling a native toolchain 

experimental feature. activated by setting NATIVE make var.
cross-compiler for the host/target system must already be installed at
a location in PATH.
This commit is contained in:
Rich Felker 2016-05-06 03:00:35 +00:00
parent 4afd97ae89
commit b732495b33
1 changed files with 18 additions and 6 deletions
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24
litecross/Makefile
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@ -11,7 +11,6 @@ TOOLCHAIN_CONFIG = $(GCC_CONFIG)
XGCC_DIR = ../obj_toolchain/gcc
XGCC = $(XGCC_DIR)/xgcc -B $(XGCC_DIR)
MUSL_CONFIG = CC="$(XGCC)" LIBCC="../obj_toolchain/$(TARGET)/libgcc/libgcc.a" --prefix=
-include config.mak
@ -21,12 +20,25 @@ MAKE += ac_cv_prog_lex_root=lex.yy.c
FULL_TOOLCHAIN_CONFIG = $(TOOLCHAIN_CONFIG) \
--disable-werror \
--target=$(TARGET) --prefix= \
--with-sysroot=/$(TARGET) \
--with-sysroot=$(SYSROOT) \
--with-build-sysroot='$$(LC_ROOT)/obj_sysroot' \
--enable-tls \
--disable-libmudflap --disable-libsanitizer
FULL_MUSL_CONFIG = $(MUSL_CONFIG) \
--prefix= --host=$(TARGET)
ifeq ($(NATIVE),)
SYSROOT = /$(TARGET)
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_built: | obj_toolchain/$(TARGET)/libgcc/libgcc.a
obj_toolchain/.lc_built: | obj_sysroot/.lc_libs
else
SYSROOT = /
FULL_TOOLCHAIN_CONFIG += --host=$(TARGET)
MUSL_VARS =
endif
ifeq ($(TARGET),)
@ -106,7 +118,7 @@ obj_toolchain/gcc/.lc_built: | obj_toolchain/.lc_configured obj_sysroot/usr obj_
touch $@
obj_musl/.lc_configured: | obj_toolchain/gcc/.lc_built obj_musl src_musl
cd obj_musl && ../src_musl/configure $(MUSL_CONFIG)
cd obj_musl && ../src_musl/configure $(FULL_MUSL_CONFIG)
touch $@
obj_sysroot/.lc_headers: | obj_musl/.lc_configured obj_sysroot
@ -120,7 +132,7 @@ obj_toolchain/$(TARGET)/libgcc/.lc_configured: | obj_sysroot/.lc_headers
obj_toolchain/$(TARGET)/libgcc/libgcc.a: | obj_toolchain/$(TARGET)/libgcc/.lc_configured
cd $(dir $@) && $(MAKE) MAKE="$(MAKE)" LC_ROOT=$(PWD) libgcc.a
obj_musl/.lc_built: | obj_toolchain/$(TARGET)/libgcc/libgcc.a
obj_musl/.lc_built: | obj_musl/.lc_configured
cd obj_musl && $(MAKE) $(MUSL_VARS)
touch $@
@ -128,12 +140,12 @@ obj_sysroot/.lc_libs: | obj_musl/.lc_built
cd obj_musl && $(MAKE) $(MUSL_VARS) DESTDIR=$(PWD)/obj_sysroot install
touch $@
obj_toolchain/.lc_built: | obj_toolchain/.lc_configured obj_sysroot/.lc_libs
obj_toolchain/.lc_built: | obj_toolchain/.lc_configured obj_sysroot/.lc_headers
cd obj_toolchain && $(MAKE) MAKE="$(MAKE)" LC_ROOT=$(PWD)
touch $@
install-musl: | obj_musl/.lc_built
cd obj_musl && $(MAKE) $(MUSL_VARS) DESTDIR=$(DESTDIR)$(OUTPUT)/$(TARGET) install
cd obj_musl && $(MAKE) $(MUSL_VARS) DESTDIR=$(DESTDIR)$(OUTPUT)$(SYSROOT) install
install-toolchain: | obj_toolchain/.lc_built
cd obj_toolchain && $(MAKE) MAKE="$(MAKE)" LC_ROOT=$(PWD) DESTDIR=$(DESTDIR)$(OUTPUT) install