1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 # Makefile for nolibc installation and tests 2 # Makefile for nolibc installation and tests
3 include ../../scripts/Makefile.include 3 include ../../scripts/Makefile.include
4 4
5 # we're in ".../tools/include/nolibc" 5 # we're in ".../tools/include/nolibc"
6 ifeq ($(srctree),) 6 ifeq ($(srctree),)
7 srctree := $(patsubst %/tools/include/,%,$(dir 7 srctree := $(patsubst %/tools/include/,%,$(dir $(CURDIR)))
8 endif 8 endif
9 9
10 # when run as make -C tools/ nolibc_<foo> the 10 # when run as make -C tools/ nolibc_<foo> the arch is not set
11 ifeq ($(ARCH),) 11 ifeq ($(ARCH),)
12 include $(srctree)/scripts/subarch.include 12 include $(srctree)/scripts/subarch.include
13 ARCH = $(SUBARCH) 13 ARCH = $(SUBARCH)
14 endif 14 endif
15 15
16 # OUTPUT is only set when run from the main ma 16 # OUTPUT is only set when run from the main makefile, otherwise
17 # it defaults to this nolibc directory. 17 # it defaults to this nolibc directory.
18 OUTPUT ?= $(CURDIR)/ 18 OUTPUT ?= $(CURDIR)/
19 19
20 ifeq ($(V),1) 20 ifeq ($(V),1)
21 Q= 21 Q=
22 else 22 else
23 Q=@ 23 Q=@
24 endif 24 endif
25 25
26 nolibc_arch := $(patsubst arm64,aarch64,$(ARCH 26 nolibc_arch := $(patsubst arm64,aarch64,$(ARCH))
27 arch_file := arch-$(nolibc_arch).h 27 arch_file := arch-$(nolibc_arch).h
28 all_files := \ 28 all_files := \
29 compiler.h \ 29 compiler.h \
30 crt.h \ 30 crt.h \
31 ctype.h \ 31 ctype.h \
32 errno.h \ 32 errno.h \
33 nolibc.h \ 33 nolibc.h \
34 signal.h \ 34 signal.h \
35 stackprotector.h \ 35 stackprotector.h \
36 std.h \ 36 std.h \
37 stdarg.h \ 37 stdarg.h \
38 stdbool.h \ 38 stdbool.h \
39 stdint.h \ 39 stdint.h \
40 stdlib.h \ 40 stdlib.h \
41 string.h \ 41 string.h \
42 sys.h \ 42 sys.h \
43 time.h \ 43 time.h \
44 types.h \ 44 types.h \
45 unistd.h \ 45 unistd.h \
46 stdio.h \ 46 stdio.h \
47 47
48 48
49 # install all headers needed to support a bare 49 # install all headers needed to support a bare-metal compiler
50 all: headers 50 all: headers
51 51
52 install: help 52 install: help
53 53
54 help: 54 help:
55 @echo "Supported targets under nolibc: 55 @echo "Supported targets under nolibc:"
56 @echo " all call \"he 56 @echo " all call \"headers\""
57 @echo " clean clean the 57 @echo " clean clean the sysroot"
58 @echo " headers prepare a 58 @echo " headers prepare a sysroot in tools/include/nolibc/sysroot"
59 @echo " headers_standalone like \"he 59 @echo " headers_standalone like \"headers\", and also install kernel headers"
60 @echo " help this help 60 @echo " help this help"
61 @echo "" 61 @echo ""
62 @echo "These targets may also be calle 62 @echo "These targets may also be called from tools as \"make nolibc_<target>\"."
63 @echo "" 63 @echo ""
64 @echo "Currently using the following v 64 @echo "Currently using the following variables:"
65 @echo " ARCH = $(ARCH)" 65 @echo " ARCH = $(ARCH)"
66 @echo " OUTPUT = $(OUTPUT)" 66 @echo " OUTPUT = $(OUTPUT)"
67 @echo "" 67 @echo ""
68 68
69 # Note: when ARCH is "x86" we concatenate both 69 # Note: when ARCH is "x86" we concatenate both x86_64 and i386
70 headers: 70 headers:
71 $(Q)mkdir -p $(OUTPUT)sysroot 71 $(Q)mkdir -p $(OUTPUT)sysroot
72 $(Q)mkdir -p $(OUTPUT)sysroot/include 72 $(Q)mkdir -p $(OUTPUT)sysroot/include
73 $(Q)cp $(all_files) $(OUTPUT)sysroot/i 73 $(Q)cp $(all_files) $(OUTPUT)sysroot/include/
74 $(Q)if [ "$(ARCH)" = "x86" ]; then 74 $(Q)if [ "$(ARCH)" = "x86" ]; then \
75 sed -e 75 sed -e \
76 's,^#ifndef _NOLIBC_ARCH_X86 76 's,^#ifndef _NOLIBC_ARCH_X86_64_H,#if !defined(_NOLIBC_ARCH_X86_64_H) \&\& defined(__x86_64__),' \
77 arch-x86_64.h; 77 arch-x86_64.h; \
78 sed -e 78 sed -e \
79 's,^#ifndef _NOLIBC_ARCH_I38 79 's,^#ifndef _NOLIBC_ARCH_I386_H,#if !defined(_NOLIBC_ARCH_I386_H) \&\& !defined(__x86_64__),' \
80 arch-i386.h; 80 arch-i386.h; \
81 elif [ -e "$(arch_file)" ]; then 81 elif [ -e "$(arch_file)" ]; then \
82 cat $(arch_file); 82 cat $(arch_file); \
83 else 83 else \
84 echo "Fatal: architecture $(AR 84 echo "Fatal: architecture $(ARCH) not yet supported by nolibc." >&2; \
85 exit 1; 85 exit 1; \
86 fi > $(OUTPUT)sysroot/include/arch.h 86 fi > $(OUTPUT)sysroot/include/arch.h
87 87
88 headers_standalone: headers 88 headers_standalone: headers
89 $(Q)$(MAKE) -C $(srctree) headers 89 $(Q)$(MAKE) -C $(srctree) headers
90 $(Q)$(MAKE) -C $(srctree) headers_inst 90 $(Q)$(MAKE) -C $(srctree) headers_install INSTALL_HDR_PATH=$(OUTPUT)sysroot
91 91
92 clean: 92 clean:
93 $(call QUIET_CLEAN, nolibc) rm -rf "$( 93 $(call QUIET_CLEAN, nolibc) rm -rf "$(OUTPUT)sysroot"
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