tools/include/nolibc/Makefile

   1 # SPDX-License-Identifier: GPL-2.0
   2 # Makefile for nolibc installation and tests
   3 include ../../scripts/Makefile.include
   4
   5 # we're in ".../tools/include/nolibc"
   6 ifeq ($(srctree),)
   7 srctree := $(patsubst %/tools/include/,%,$(dir $(CURDIR)))
   8 endif
   9
  10 nolibc_arch := $(patsubst arm64,aarch64,$(ARCH))
  11 arch_file := arch-$(nolibc_arch).h
  12 all_files := ctype.h errno.h nolibc.h signal.h std.h stdio.h stdlib.h string.h \
  13              sys.h time.h types.h unistd.h
  14
  15 # install all headers needed to support a bare-metal compiler
  16 all:
  17
  18 # Note: when ARCH is "x86" we concatenate both x86_64 and i386
  19 headers:
  20         $(Q)mkdir -p $(OUTPUT)sysroot
  21         $(Q)mkdir -p $(OUTPUT)sysroot/include
  22         $(Q)cp $(all_files) $(OUTPUT)sysroot/include/
  23         $(Q)if [ "$(ARCH)" = "x86" ]; then      \
  24                 sed -e                          \
  25                   's,^#ifndef _NOLIBC_ARCH_X86_64_H,#if !defined(_NOLIBC_ARCH_X86_64_H) \&\& defined(__x86_64__),' \
  26                   arch-x86_64.h;                \
  27                 sed -e                          \
  28                   's,^#ifndef _NOLIBC_ARCH_I386_H,#if !defined(_NOLIBC_ARCH_I386_H) \&\& !defined(__x86_64__),' \
  29                   arch-i386.h;                  \
  30         elif [ -e "$(arch_file)" ]; then        \
  31                 cat $(arch_file);               \
  32         else                                    \
  33                 echo "Fatal: architecture $(ARCH) not yet supported by nolibc." >&2; \
  34                 exit 1;                         \
  35         fi > $(OUTPUT)sysroot/include/arch.h
  36
  37 headers_standalone: headers
  38         $(Q)$(MAKE) -C $(srctree) headers
  39         $(Q)$(MAKE) -C $(srctree) headers_install INSTALL_HDR_PATH=$(OUTPUT)/sysroot
  40
  41 clean:
  42         $(call QUIET_CLEAN, nolibc) rm -rf "$(OUTPUT)sysroot"