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75 lines
2.4 KiB
75 lines
2.4 KiB
# SPDX-License-Identifier: GPL-2.0 |
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# Makefile for nolibc installation and tests |
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include ../../scripts/Makefile.include |
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# we're in ".../tools/include/nolibc" |
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ifeq ($(srctree),) |
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srctree := $(patsubst %/tools/include/,%,$(dir $(CURDIR))) |
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endif |
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# when run as make -C tools/ nolibc_<foo> the arch is not set |
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ifeq ($(ARCH),) |
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include $(srctree)/scripts/subarch.include |
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ARCH = $(SUBARCH) |
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endif |
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# OUTPUT is only set when run from the main makefile, otherwise |
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# it defaults to this nolibc directory. |
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OUTPUT ?= $(CURDIR)/ |
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ifeq ($(V),1) |
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Q= |
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else |
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Q=@ |
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endif |
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nolibc_arch := $(patsubst arm64,aarch64,$(ARCH)) |
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arch_file := arch-$(nolibc_arch).h |
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all_files := ctype.h errno.h nolibc.h signal.h std.h stdio.h stdlib.h string.h \ |
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sys.h time.h types.h unistd.h |
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# install all headers needed to support a bare-metal compiler |
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all: headers |
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install: help |
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help: |
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@echo "Supported targets under nolibc:" |
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@echo " all call \"headers\"" |
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@echo " clean clean the sysroot" |
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@echo " headers prepare a sysroot in tools/include/nolibc/sysroot" |
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@echo " headers_standalone like \"headers\", and also install kernel headers" |
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@echo " help this help" |
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@echo "" |
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@echo "These targets may also be called from tools as \"make nolibc_<target>\"." |
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@echo "" |
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@echo "Currently using the following variables:" |
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@echo " ARCH = $(ARCH)" |
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@echo " OUTPUT = $(OUTPUT)" |
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@echo "" |
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# Note: when ARCH is "x86" we concatenate both x86_64 and i386 |
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headers: |
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$(Q)mkdir -p $(OUTPUT)sysroot |
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$(Q)mkdir -p $(OUTPUT)sysroot/include |
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$(Q)cp $(all_files) $(OUTPUT)sysroot/include/ |
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$(Q)if [ "$(ARCH)" = "x86" ]; then \ |
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sed -e \ |
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's,^#ifndef _NOLIBC_ARCH_X86_64_H,#if !defined(_NOLIBC_ARCH_X86_64_H) \&\& defined(__x86_64__),' \ |
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arch-x86_64.h; \ |
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sed -e \ |
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's,^#ifndef _NOLIBC_ARCH_I386_H,#if !defined(_NOLIBC_ARCH_I386_H) \&\& !defined(__x86_64__),' \ |
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arch-i386.h; \ |
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elif [ -e "$(arch_file)" ]; then \ |
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cat $(arch_file); \ |
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else \ |
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echo "Fatal: architecture $(ARCH) not yet supported by nolibc." >&2; \ |
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exit 1; \ |
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fi > $(OUTPUT)sysroot/include/arch.h |
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headers_standalone: headers |
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$(Q)$(MAKE) -C $(srctree) headers |
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$(Q)$(MAKE) -C $(srctree) headers_install INSTALL_HDR_PATH=$(OUTPUT)sysroot |
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clean: |
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$(call QUIET_CLEAN, nolibc) rm -rf "$(OUTPUT)sysroot"
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