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# SPDX-License-Identifier: GPL-2.0
# Makefile for nolibc installation and tests
include ../../scripts/Makefile.include
# we're in ".../tools/include/nolibc"
ifeq ($(srctree),)
srctree := $(patsubst %/tools/include/,%,$(dir $(CURDIR)))
endif
nolibc_arch := $(patsubst arm64,aarch64,$(ARCH))
arch_file := arch-$(nolibc_arch).h
all_files := ctype.h errno.h nolibc.h signal.h std.h stdio.h stdlib.h string.h \
sys.h time.h types.h unistd.h
# install all headers needed to support a bare-metal compiler
all:
# Note: when ARCH is "x86" we concatenate both x86_64 and i386
headers:
$(Q)mkdir -p $(OUTPUT)sysroot
$(Q)mkdir -p $(OUTPUT)sysroot/include
$(Q)cp $(all_files) $(OUTPUT)sysroot/include/
$(Q)if [ "$(ARCH)" = "x86" ]; then \
sed -e \
's,^#ifndef _NOLIBC_ARCH_X86_64_H,#if !defined(_NOLIBC_ARCH_X86_64_H) \&\& defined(__x86_64__),' \
arch-x86_64.h; \
sed -e \
's,^#ifndef _NOLIBC_ARCH_I386_H,#if !defined(_NOLIBC_ARCH_I386_H) \&\& !defined(__x86_64__),' \
arch-i386.h; \
elif [ -e "$(arch_file)" ]; then \
cat $(arch_file); \
else \
echo "Fatal: architecture $(ARCH) not yet supported by nolibc." >&2; \
exit 1; \
fi > $(OUTPUT)sysroot/include/arch.h
headers_standalone: headers
$(Q)$(MAKE) -C $(srctree) headers
$(Q)$(MAKE) -C $(srctree) headers_install INSTALL_HDR_PATH=$(OUTPUT)/sysroot
clean:
$(call QUIET_CLEAN, nolibc) rm -rf "$(OUTPUT)sysroot"
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