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62 lines
1.9 KiB
Makefile
62 lines
1.9 KiB
Makefile
CONFIG_MUSL ?= y
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ifeq "$(MUSL_CROSS_ONCE)" ""
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MUSL_CROSS_ONCE := 1
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modules-$(CONFIG_MUSL) += musl-cross-make
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musl-cross-make_version := fd6be58297ee21fcba89216ccd0d4aca1e3f1c5c
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musl-cross-make_dir := musl-cross-make-$(musl-cross-make_version)
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musl-cross-make_url := https://github.com/richfelker/musl-cross-make/archive/$(musl-cross-make_version).tar.gz
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musl-cross-make_tar := musl-cross-make-$(musl-cross-make_version).tar.gz
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musl-cross-make_hash := 15b8e0a287d738a46e069e90d67a8d96213b357b79aaf3e8cf0cd40e4b230d9e
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ifneq "$(CROSS)" ""
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# check that $(CROSS)gcc exists or else things just won't work
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ifneq "y" "$(shell [ -x '$(CROSS)gcc' ] && echo y)"
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$(error $(CROSS)gcc does not exist - can not build)
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else
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$(info Using $(CROSS)gcc)
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endif
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# The cross compiler has already been built, so the musl-cross-make target
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# is a NOP. We really don't need to check out this code tree, but it is easier
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# if we have a target for it.
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musl-cross-make_target := --version
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# Ask the compiler where to find its own libc.so
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musl-cross-make_libraries := \
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$(shell $(CROSS)gcc --print-file-name=libc.so) \
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else
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# Force a full build of the cross compiler for target platform
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# No need to build i386 for x86 since coreboot uses its own compiler
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musl-cross-make_configure := \
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echo -e >> Makefile 'musl-target:' ; \
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echo -e >> Makefile '\t$$$$(MAKE) TARGET="$(MUSL_ARCH)-linux-musl" install' ;
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CROSS_PATH ?= $(pwd)/crossgcc/$(CONFIG_TARGET_ARCH)
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musl-cross-make_target := \
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OUTPUT="$(CROSS_PATH)" \
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MAKE="$(MAKE)" \
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$(MAKE_JOBS) \
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"musl-target"
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CROSS := $(CROSS_PATH)/bin/$(subst -,_,$(MUSL_ARCH))-linux-musl-
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musl-cross-make_libraries := $(CROSS_PATH)/$(subst -,_,$(MUSL_ARCH))-linux-musl/lib/libc.so
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endif
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musl-cross-make_output := $(CROSS)gcc
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## Fake a target so that musl will force a header install by the
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## Linux kernel sources.
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$(build)/$(musl-cross-make_dir)/.build: $(INSTALL)/include/linux/limits.h
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endif
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