uclibc-ng/Makerules

#
# Licensed under LGPL v2.1, see the file COPYING.LIB in this tarball for details.
#

.SUFFIXES: .c .S .o .os .oS .so .a .s .i

# order is important, the stripping uses STRIP_FLAGS for lib-so, but not for lib-a
ifeq ($(HAVE_SHARED),y)
.LIBPATTERNS: "lib%.so"
libs: lib-so-y lib-a-y
objs: shared_objs ar_objs
else
.LIBPATTERNS: "lib%.a"
libs: lib-a-y
objs: ar_objs
endif

shared_objs-y =  $(lduClibc-so-y) $(libc-so-y) $(libc-nonshared-y) $(libdl-so-y)
shared_objs-y += $(libcrypt-so-y) $(libintl-so-y) $(libm-so-y) $(libnsl-so-y) $(libpthread-so-y)
shared_objs-y += $(libresolv-so-y) $(librt-so-y) $(libutil-so-y)
ar_objs-y =  $(libc-a-y) $(libcrypt-a-y) $(libintl-a-y) $(libm-a-y) $(libnsl-a-y)
ar_objs-y += $(libpthread-a-y) $(libresolv-a-y) $(librt-a-y) $(libutil-a-y)

shared_objs: $(shared_objs-y)
ifeq ($(DOPIC),y)
ar_objs: $(ar_objs-y:.o=.os)
else
ar_objs: $(ar_objs-y)
endif

headers-y: $(headers-y)
ld-uClibc-y: $(ld-uClibc-y)
interp-y: $(interp)
pre-y: interp-y ld-uClibc-y
libc-y: pre-y $(libc) crt-y
lib-a-y: headers_root crt-y $(lib-a-y)
lib-so-y: libc-y $(lib-so-y)

headers_root:
	@cd $(top_builddir); $(MAKE) headers

ifneq ($(findstring s,$(MAKEFLAGS)),)
DISP := sil
Q := @
else
ifneq ($(V)$(VERBOSE),)
DISP := ver
Q := 
else
DISP := pur
Q := @
endif
endif

show_objs = $(subst ../,,$@)

pur_disp_compile.c = echo "  "CC $(show_objs)
pur_disp_compile.S = echo "  "AS $(show_objs)
pur_disp_compile.m = $(pur_disp_compile.c)
pur_disp_compile-m = echo "  "CC-m $(show_objs)
pur_disp_strip     = echo "  "STRIP $(STRIP_FLAGS) $@:*
pur_disp_ar        = echo "  "AR $(ARFLAGS) $@
pur_disp_ld        = echo "  "LD $(1)

sil_disp_compile.c = true
sil_disp_compile.S = true
sil_disp_compile.m = true
sil_disp_compile-m = true
sil_disp_strip     = true
sil_disp_ar        = true
sil_disp_ld        = true

ver_disp_compile.c = echo $(cmd_compile.c)
ver_disp_compile.S = echo $(cmd_compile.S)
ver_disp_compile.m = echo $(cmd_compile.m)
ver_disp_compile-m = echo $(cmd_compile-m)
ver_disp_strip     = echo $(cmd_strip)
ver_disp_ar        = echo $(cmd_ar)
ver_disp_ld        = 

disp_compile.c = $($(DISP)_disp_compile.c)
disp_compile.S = $($(DISP)_disp_compile.S)
disp_compile.m = $($(DISP)_disp_compile.m)
disp_compile-m = $($(DISP)_disp_compile-m)
disp_strip     = $($(DISP)_disp_strip)
disp_ar        = $($(DISP)_disp_ar)
disp_ld        = $($(DISP)_disp_ld)

cmd_compile.c = $(CC) -c $< -o $@ $(CFLAGS) $(ARCH_CFLAGS) $(CFLAGS-$(suffix $@)) $(CFLAGS-$(notdir $(^D))) $(CFLAGS-$(subst $(top_srcdir),,$(dir $<))) $(CFLAGS-$(notdir $<)) $(CFLAGS-$(notdir $@))
cmd_compile.S = $(cmd_compile.c) $(ASFLAGS) $(ARCH_ASFLAGS) $(ASFLAGS-$(suffix $@)) $(ASFLAGS-$(notdir $<)) $(ASFLAGS-$(notdir $@))
cmd_compile.m = $(cmd_compile.c) -DL_$(patsubst %$(suffix $(notdir $@)),%,$(notdir $@))
cmd_compile-m = $(CC) $^ -c -o $@ $(CFLAGS) $(ARCH_CFLAGS) $(CFLAGS-$(suffix $@)) $(CFLAGS-$(notdir $@)) $(CFLAGS-multi-y)
cmd_strip     = $(STRIPTOOL) $(STRIP_FLAGS) $^
cmd_ar        = $(AR) $(ARFLAGS) $@ $^

compile.c = @$(disp_compile.c) ; $(cmd_compile.c)
compile.E = $(cmd_compile.c:-c=-E)
compile.S = @$(disp_compile.S) ; $(cmd_compile.S)
compile.m = @$(disp_compile.m) ; $(cmd_compile.m)
compile-m = @$(disp_compile-m) ; $(cmd_compile-m)
do_strip  = @$(disp_strip)     ; $(cmd_strip)
do_ar     = @$(disp_ar)        ; $(cmd_ar)

define link.so
	$(Q)$(INSTALL) -d $(dir $@)
	$(Q)$(RM) $@ $@.$(2) $(dir $@)$(1)
	@$(disp_ld)
	$(Q)$(LD) $(LDFLAGS-$(notdir $@)) -soname=$(notdir $@).$(2) \
		-o $(dir $@)$(1) $(START_FILE-$(notdir $@)) \
		--whole-archive $(firstword $^) --no-whole-archive \
		$(LIBS-$(notdir $@)) $(LIBGCC) $(END_FILE-$(notdir $@))
	$(Q)$(LN) -sf $(1) $@.$(2)
	$(Q)$(LN) -sf $(1) $@
endef

CFLAGS-.os+=$(PICFLAG)
CFLAGS-.oS+=$(PICFLAG) -DSHARED

%.o:  %.c ; $(compile.c)
%.os: %.c ; $(compile.c)
%.oS: %.c ; $(compile.c)
%.o:  %.S ; $(compile.S)
%.os: %.S ; $(compile.S)
%.o:  %.s ; $(compile.S)
%.os: %.s ; $(compile.S)
%.E:  %.c ; $(compile.E)
%.E:  %.S ; $(compile.E)

#ifeq ($(HAVE_ELF),y)
CRT=crt1
#else
#CRT=crt0
#endif

ifeq ($(HAVE_SHARED),y)
CRTS=$(top_builddir)lib/$(CRT).o $(top_builddir)lib/S$(CRT).o
else
CRTS=$(top_builddir)lib/$(CRT).o
endif

$(top_builddir)lib/$(CRT).o: $(top_srcdir)libc/sysdeps/linux/$(TARGET_ARCH)/$(CRT).S
	$(Q)$(INSTALL) -d $(dir $@)
	$(compile.S) -DL_$(patsubst %$(suffix $(notdir $@)),%,$(notdir $@))
	@$(disp_strip) $(show_objs)
	$(Q)$(STRIPTOOL) -x -R .note -R .comment $@

$(top_builddir)lib/S$(CRT).o: $(top_srcdir)libc/sysdeps/linux/$(TARGET_ARCH)/$(CRT).S
	$(Q)$(INSTALL) -d $(dir $@)
	$(compile.S) $(PIEFLAG) -DL_$(patsubst %$(suffix $(notdir $@)),%,$(notdir $@))
	@$(disp_strip) $(show_objs)
	$(Q)$(STRIPTOOL) -x -R .note -R .comment $@

CTOR_TARGETS=$(top_builddir)lib/crti.o $(top_builddir)lib/crtn.o

ifeq ($(UCLIBC_CTOR_DTOR),y)
$(top_builddir)lib/crti.o: $(top_srcdir)libc/sysdeps/linux/$(TARGET_ARCH)/crti.S
	$(Q)$(INSTALL) -d $(dir $@)
	$(compile.S) $(PICFLAG) $(SSP_DISABLE_FLAGS)

$(top_builddir)lib/crtn.o: $(top_srcdir)libc/sysdeps/linux/$(TARGET_ARCH)/crtn.S
	$(Q)$(INSTALL) -d $(dir $@)
	$(compile.S) $(PICFLAG) $(SSP_DISABLE_FLAGS)
else
$(CTOR_TARGETS):
	$(Q)$(INSTALL) -d $(top_builddir)lib
	$(do_ar)
endif

crt-y: $(crt-y)
$(crt-y): $(CRTS) $(CTOR_TARGETS)

$(top_builddir)lib/$(NONSHARED_LIBNAME): $(libc-nonshared-y)
	$(Q)$(INSTALL) -d $(dir $@)
	$(do_ar)

.PHONY: dummy create
clean: objclean-y headers_clean-y

objclean-y: $(objclean-y)
headers_clean-y: $(headers_clean-y)