GENH = include/bits/alltypes.h
CFLAGS = -Os -nostdinc -ffreestanding -std=c99 -D_XOPEN_SOURCE=700 -pipe
-LDFLAGS = -nostdlib -shared -Wl,-Bsymbolic
+LDFLAGS = -nostdlib -shared -fPIC -Wl,-e,_start -Wl,-Bsymbolic-functions
INC = -I./include -I./src/internal -I./arch/$(ARCH)
-PIC = -fPIC
+PIC = -fPIC -O3
AR = $(CROSS_COMPILE)ar
RANLIB = $(CROSS_COMPILE)ranlib
OBJCOPY = $(CROSS_COMPILE)objcopy
ALL_INCLUDES = $(sort $(wildcard include/*.h include/*/*.h) $(GENH))
-EMPTY_LIB_NAMES = m rt pthread crypt util xnet resolv
+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/crti.o lib/crtn.o
LIBC_LIBS = lib/libc.a
rm -f crt/*.o
rm -f $(OBJS)
rm -f $(LOBJS)
- rm -f $(ALL_LIBS) lib/*
+ rm -f $(ALL_LIBS) lib/*.[ao] lib/*.so
rm -f $(ALL_TOOLS)
rm -f $(GENH)
rm -f include/bits
%.lo: %.c $(GENH)
$(CC) $(CFLAGS) $(INC) $(PIC) -c -o $@ $<
-lib:
- mkdir -p lib
-
-lib/libc.so: $(LOBJS) lib
+lib/libc.so: $(LOBJS)
$(CC) $(LDFLAGS) -o $@ $(LOBJS) -lgcc
$(OBJCOPY) --weaken $@
-lib/libc.a: $(OBJS) lib
+lib/libc.a: $(OBJS)
rm -f $@
$(AR) rc $@ $(OBJS)
$(RANLIB) $@
-$(EMPTY_LIBS): lib
+$(EMPTY_LIBS):
+ rm -f $@
$(AR) rc $@
-lib/%.o: crt/%.o lib
+lib/%.o: crt/%.o
cp $< $@
tools/musl-gcc: tools/gen-musl-gcc.sh config.mak