summaryrefslogtreecommitdiff
path: root/Makefile
blob: 3c55c8f24c9dd566ae2e4033f4afe85d16093cc3 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
#
# Makefile for musl (requires GNU make)
#
# This is how simple every makefile should be...
# No, I take that back - actually most should be less than half this size.
#
# Use config.mak to override any of the following variables.
# Do not make changes here.
#

exec_prefix = /usr/local
bindir = $(exec_prefix)/bin

prefix = /usr/local/musl
includedir = $(prefix)/include
libdir = $(prefix)/lib
syslibdir = /lib

SRCS = $(sort $(wildcard src/*/*.c))
OBJS = $(SRCS:.c=.o)
LOBJS = $(OBJS:.o=.lo)
GENH = include/bits/alltypes.h
IMPH = src/internal/stdio_impl.h src/internal/pthread_impl.h src/internal/libc.h

LDFLAGS = 
LIBCC = -lgcc
CPPFLAGS =
CFLAGS = -Os -pipe
CFLAGS_C99FSE = -std=c99 -ffreestanding -nostdinc 

CFLAGS_ALL = $(CFLAGS_C99FSE)
CFLAGS_ALL += -D_XOPEN_SOURCE=700 -I./arch/$(ARCH) -I./src/internal -I./include
CFLAGS_ALL += $(CPPFLAGS) $(CFLAGS)
CFLAGS_ALL_STATIC = $(CFLAGS_ALL)
CFLAGS_ALL_SHARED = $(CFLAGS_ALL) -fPIC -DSHARED

AR      = $(CROSS_COMPILE)ar
RANLIB  = $(CROSS_COMPILE)ranlib

ALL_INCLUDES = $(sort $(wildcard include/*.h include/*/*.h) $(GENH))

EMPTY_LIB_NAMES = m rt pthread crypt util xnet resolv dl
EMPTY_LIBS = $(EMPTY_LIB_NAMES:%=lib/lib%.a)
CRT_LIBS = lib/crt1.o lib/Scrt1.o lib/crti.o lib/crtn.o
STATIC_LIBS = lib/libc.a
SHARED_LIBS = lib/libc.so
TOOL_LIBS = lib/musl-gcc.specs
ALL_LIBS = $(CRT_LIBS) $(STATIC_LIBS) $(SHARED_LIBS) $(EMPTY_LIBS) $(TOOL_LIBS)
ALL_TOOLS = tools/musl-gcc

LDSO_PATHNAME = $(syslibdir)/ld-musl-$(ARCH).so.1

-include config.mak

all: $(ALL_LIBS) $(ALL_TOOLS)

install: install-libs install-headers install-tools

clean:
	rm -f crt/*.o
	rm -f $(OBJS)
	rm -f $(LOBJS)
	rm -f $(ALL_LIBS) lib/*.[ao] lib/*.so
	rm -f $(ALL_TOOLS)
	rm -f $(GENH) 
	rm -f include/bits

distclean: clean
	rm -f config.mak

include/bits:
	@test "$(ARCH)" || { echo "Please set ARCH in config.mak before running make." ; exit 1 ; }
	ln -sf ../arch/$(ARCH)/bits $@

include/bits/alltypes.h.sh: include/bits

include/bits/alltypes.h: include/bits/alltypes.h.sh
	sh $< > $@

src/ldso/dynlink.lo: arch/$(ARCH)/reloc.h

%.o: $(ARCH)/%.s
	$(CC) $(CFLAGS_ALL_STATIC) -c -o $@ $<

%.o: %.c $(GENH) $(IMPH)
	$(CC) $(CFLAGS_ALL_STATIC) -c -o $@ $<

%.lo: $(ARCH)/%.s
	$(CC) $(CFLAGS_ALL_SHARED) -c -o $@ $<

%.lo: %.c $(GENH) $(IMPH)
	$(CC) $(CFLAGS_ALL_SHARED) -c -o $@ $<

lib/libc.so: $(LOBJS)
	$(CC) $(CFLAGS_ALL_SHARED) $(LDFLAGS) -nostdlib -shared \
	-Wl,-e,_start -Wl,-Bsymbolic-functions \
	-Wl,-soname=libc.so -o $@ $(LOBJS) $(LIBCC)

lib/libc.a: $(OBJS)
	rm -f $@
	$(AR) rc $@ $(OBJS)
	$(RANLIB) $@

$(EMPTY_LIBS):
	rm -f $@
	$(AR) rc $@

lib/%.o: crt/%.o
	cp $< $@

lib/musl-gcc.specs: tools/musl-gcc.specs.sh config.mak
	sh $< "$(includedir)" "$(libdir)" "$(LDSO_PATHNAME)" > $@

tools/musl-gcc: config.mak
	printf '#!/bin/sh\nexec "$${REALGCC:-gcc}" "$$@" -specs "%s/musl-gcc.specs"\n' "$(libdir)" > $@
	chmod +x $@

$(DESTDIR)$(bindir)/%: tools/%
	install -D $< $@

$(DESTDIR)$(libdir)/%.so: lib/%.so
	install -D -m 755 $< $@

$(DESTDIR)$(libdir)/%: lib/%
	install -D -m 644 $< $@

$(DESTDIR)$(includedir)/%: include/%
	install -D -m 644 $< $@

$(DESTDIR)$(LDSO_PATHNAME): $(DESTDIR)$(syslibdir)
	ln -sf $(libdir)/libc.so $@ || true

$(DESTDIR)$(syslibdir):
	install -d -m 755 $(DESTDIR)$(syslibdir)

install-libs: $(ALL_LIBS:lib/%=$(DESTDIR)$(libdir)/%) $(if $(SHARED_LIBS),$(DESTDIR)$(LDSO_PATHNAME),)

install-headers: $(ALL_INCLUDES:include/%=$(DESTDIR)$(includedir)/%)

install-tools: $(ALL_TOOLS:tools/%=$(DESTDIR)$(bindir)/%)



.PRECIOUS: $(CRT_LIBS:lib/%=crt/%)

.PHONY: all clean install install-libs install-headers install-tools