2 # Licensed under LGPL v2.1, see the file COPYING.LIB in this tarball for details.
5 .SUFFIXES: .c .S .o .os .oS .so .a .s .i
9 .PHONY: dummy $(PHONY) \
10 all check clean realclean distclean test \
11 config dist menuconfig oldconfig release \
14 # order is important, the stripping uses STRIP_FLAGS for lib-so, but not for lib-a
15 ifeq ($(HAVE_SHARED),y)
16 .LIBPATTERNS: "lib%.so"
17 libs: $(lib-so-y) $(lib-a-y)
18 $(lib-so-y): $(interp)
20 .LIBPATTERNS: "lib%.a"
21 ifeq ($(UCLIBC_FORMAT_SHARED_FLAT),y)
28 shared_objs = $(ldso-y) $(libc-y:.o=.os) $(libc-shared-y) $(libc-nonshared-y) $(libdl-so-y)
29 shared_objs += $(libcrypt-so-y) $(libintl-so-y) $(libm-so-y) $(libnsl-so-y) $(libpthread-so-y) $(libpthread-nonshared-y)
30 shared_objs += $(libthread_db-so-y) $(libresolv-so-y) $(librt-so-y) $(libutil-so-y)
31 ar_objs = $(libc-y) $(libc-static-y) $(libdl-a-y) $(libcrypt-a-y) $(libintl-a-y) $(libm-a-y) $(libnsl-a-y)
32 ar_objs += $(libpthread-a-y) $(libthread_db-a-y) $(libresolv-a-y) $(librt-a-y) $(libutil-a-y)
34 ar_objs := $(ar_objs:.o=.os)
37 ifeq ($(HAVE_SHARED),y)
38 all_objs: $(sort $(shared_objs) $(ar_objs))
42 $(shared_objs) $(ar_objs): | $(sub_headers)
44 headers-y: $(headers-y)
47 MAKEFLAGS += --no-print-directory
49 ifneq ($(findstring s,$(MAKEFLAGS)),)
50 export MAKE_IS_SILENT := y
55 export MAKE_IS_SILENT := n
57 ifneq ($(V)$(VERBOSE),)
67 show_objs = $(subst ../,,$@)
69 pur_disp_compile.c = echo " "CC $(show_objs)
70 pur_disp_compile.i = echo " "CPP $(show_objs)
71 pur_disp_compile.s = echo " "CC-S $(show_objs)
72 pur_disp_compile.u = echo " "CC $(show_objs)
73 pur_disp_compile.S = echo " "AS $(show_objs)
74 pur_disp_compile.m = $(pur_disp_compile.c)
75 pur_disp_compile-m = echo " "CC-m $(show_objs)
76 pur_disp_strip = echo " "STRIP $(STRIP_FLAGS) $@
77 pur_disp_t_strip = echo " "STRIP $(STRIP_FLAGS) $@
78 pur_disp_ar = echo " "AR $(ARFLAGS) $@
79 pur_disp_ld = echo " "LD $(1)
80 pur_disp_ln = echo " "LN $@
81 pur_disp_mkdir = echo " "MKDIR $@
82 pur_disp_gen = echo " "GEN $@
83 pur_disp_unifdef = echo " "UNIFDEF $@
85 sil_disp_compile.c = true
86 sil_disp_compile.i = true
87 sil_disp_compile.s = true
88 sil_disp_compile.u = true
89 sil_disp_compile.S = true
90 sil_disp_compile.m = true
91 sil_disp_compile-m = true
93 sil_disp_t_strip = true
99 sil_disp_unifdef = true
101 ver_disp_compile.c = echo $(cmd_compile.c)
102 ver_disp_compile.i = echo $(cmd_compile.i)
103 ver_disp_compile.s = echo $(cmd_compile.s)
104 ver_disp_compile.u = echo $(cmd_compile.u)
105 ver_disp_compile.S = echo $(cmd_compile.S)
106 ver_disp_compile.m = echo $(cmd_compile.m)
107 ver_disp_compile-m = echo $(cmd_compile-m)
108 ver_disp_strip = echo $(cmd_strip)
109 ver_disp_t_strip = echo $(cmd_t_strip)
110 ver_disp_ar = echo $(cmd_ar)
115 ver_disp_unifdef = echo $(cmd_unifdef)
117 disp_compile.c = $($(DISP)_disp_compile.c)
118 disp_compile.i = $($(DISP)_disp_compile.i)
119 disp_compile.s = $($(DISP)_disp_compile.s)
120 disp_compile.u = $($(DISP)_disp_compile.u)
121 disp_compile.S = $($(DISP)_disp_compile.S)
122 disp_compile.m = $($(DISP)_disp_compile.m)
123 disp_compile-m = $($(DISP)_disp_compile-m)
124 disp_strip = $($(DISP)_disp_strip)
125 disp_t_strip = $($(DISP)_disp_t_strip)
126 disp_ar = $($(DISP)_disp_ar)
127 disp_ld = $($(DISP)_disp_ld)
128 disp_ln = $($(DISP)_disp_ln)
129 disp_mkdir = $($(DISP)_disp_mkdir)
130 disp_gen = $($(DISP)_disp_gen)
131 disp_unifdef = $($(DISP)_disp_unifdef)
133 any-prereq = $(filter-out $(PHONY),$?) $(filter-out $(PHONY) $(wildcard $^),$^)
135 # ../foo/bar/baz.ext -> foo_bar_baz.ext
136 variablify = $(subst /,_,$(subst $(top_builddir),,$(1)))
137 # strip the top_builddir off everything to make the *string* idempotent for -C
138 dirify = $(subst $(top_builddir),,$(patsubst -L$(top_builddir)%,-L%,$(patsubst -I$(top_builddir)%,-I%,$(1))))
140 # True if not identical. Neither order nor whitespace nor identical flags
143 $(strip $(filter-out $(call dirify,$(cmd_$(call variablify,$(1)))), \
144 $(call dirify,$(cmd_$(call variablify,$(@))))) \
145 $(filter-out $(call dirify,$(cmd_$(call variablify,$(@)))), \
146 $(call dirify,$(cmd_$(call variablify,$(1))))))
148 # Rebuild if any prerequisite, the used CC or flags changed.
149 # Previously used flags are stored in the corresponding .%.dep files
151 $(if $(strip $(compare_flags) $(any-prereq)), \
155 echo 'cmd_$(call variablify,$@) := $(call dirify,$(cmd_$(call variablify,$1)))' >> $(dir $@).$(notdir $@).dep)
158 CFLAGS_gen.dep = -MT $@ -MD -MP -MF $(dir $@).$(notdir $@).dep
160 cmd_compile.c = $(CC) -c $< -o $@ $(CFLAGS) $(ARCH_CFLAGS) \
161 $(CFLAGS-$(suffix $@)) \
162 $(filter-out $(CFLAGS-OMIT-$(notdir $<)),$(CFLAGS-$(notdir $(<D)))) \
163 $(CFLAGS-$(subst $(top_srcdir),,$(dir $<))) \
164 $(CFLAGS-$(notdir $<)) \
165 $(CFLAGS-$(notdir $@)) \
167 cmd_compile.i = $(cmd_compile.c:-c=-E -dD)
168 cmd_compile.s = $(cmd_compile.c:-c=-S)
169 cmd_compile.u = $(CC) $^ $(DEPS-$(notdir $@)) -o $@ $(CFLAGS) $(CFLAGS-$(notdir $(^D))) $(CFLAGS-$(notdir $@)) $(CFLAGS_gen.dep)
170 cmd_compile.S = $(filter-out -std=gnu99, $(cmd_compile.c)) -D__ASSEMBLER__ $(ASFLAGS) $(ARCH_ASFLAGS) $(ASFLAGS-$(suffix $@)) $(ASFLAGS-$(notdir $<)) $(ASFLAGS-$(notdir $@))
171 cmd_compile.m = $(cmd_compile.c) -DL_$(patsubst %$(suffix $(notdir $@)),%,$(notdir $@))
173 cmd_compile-m = $(CC) $^ -c -o $@ $(CFLAGS) $(ARCH_CFLAGS) $(CFLAGS-$(suffix $@)) $(CFLAGS-$(notdir $(@D))) $(CFLAGS-$(notdir $@))
174 cmd_strip = $(STRIPTOOL) $(STRIP_FLAGS) $^
175 cmd_t_strip = $(STRIPTOOL) $(STRIP_FLAGS) $@
176 cmd_ar = $(AR) $(ARFLAGS) $@ $^
178 # special suckage alert. We try to avoid --check-symlink-times thus we touch
185 compile.c = @$(call maybe_exec,compile.c)
186 compile.i = $(call maybe_exec,compile.i)
187 compile.s = $(call maybe_exec,compile.s)
188 compile.S = @$(call maybe_exec,compile.S)
189 compile.m = @$(call maybe_exec,compile.m)
190 compile-m = @$(disp_compile-m) ; $(cmd_compile-m)
191 do_strip = @$(disp_strip) ; $(cmd_strip)
192 do_t_strip= @$(disp_t_strip) ; $(cmd_t_strip)
193 do_ar = @$(disp_ar) ; $(cmd_ar)
194 do_unifdef= @$(disp_unifdef) ; $(cmd_unifdef)
197 @$(disp_compile.u) ; $(cmd_compile.u)
200 hcompile.u = $(HOSTCC) $^ $(DEPS-$(notdir $@)) -o $@ $(BUILD_LDFLAGS) $(BUILD_LDFLAGS-$(notdir $(^D))) $(BUILD_LDFLAGS-$(notdir $@)) $(BUILD_CFLAGS) $(BUILD_CFLAGS-$(notdir $(^D))) $(BUILD_CFLAGS-$(notdir $@))
201 hcompile.o = $(HOSTCC) $^ $(DEPS-$(notdir $@)) -c -o $@ $(BUILD_CFLAGS) $(BUILD_CFLAGS-$(notdir $(^D))) $(BUILD_CFLAGS-$(notdir $@))
204 $(Q)$(INSTALL) -d $(dir $@)
205 $(Q)$(RM) $@ $@.$(2) $(dir $@)$(1)
207 $(Q)$(CC) $(LDFLAGS-$(notdir $@)) -Wl,-soname=$(notdir $@).$(2) \
208 $(NOSTDLIB_CFLAGS) -o $(dir $@)$(1) $(START_FILE-$(notdir $@)) \
209 -Wl,--whole-archive $(firstword $^) -Wl,--no-whole-archive \
210 $(LIBS-$(notdir $@)) $(LIBGCC) $(END_FILE-$(notdir $@))
211 $(Q)$(LN) -sf $(1) $@.$(2)
212 $(Q)$(LN) -sf $(1) $@
215 # CRT files needed by link-flat.so
216 LINK_FLAT_CRTS := $(top_builddir)lib/Scrt1.o $(top_builddir)lib/crti.o \
217 $(top_builddir)lib/crtn.o
219 # Create a shared flat library from the archive named by the first dependency.
220 # $@ names the shared library's .gdb file, not the flat file itself.
221 # (This is because the .gdb suffix makes the ELF file more distinctive
222 # than the suffixless flat file.)
224 # Argument 1 is the shared library file -- i.e. $(@:.gdb=) -- and argument 2
225 # is the shared library identifier. If it wasn't for $(disp_ld), we could
226 # avoid passing $(@:.gdb=) as an argument and use $(@:.gdb=) instead of $(1).
228 # This is so far only used for libc, for which we want to link the entire
229 # libgcc into the shared object.
231 $(Q)$(INSTALL) -d $(dir $@)
234 $(Q)$(CC) $(LDFLAGS-$(notdir $@)) $(NOSTDLIB_CFLAGS) -o $(1) \
235 -Wl,-elf2flt -Wl,-shared-lib-id,$(2) $(top_builddir)lib/Scrt1.o \
236 $(top_builddir)/lib/crti.o -Wl,--whole-archive $(firstword $^) \
237 $(LIBGCC) -Wl,--no-whole-archive $(LIBS-$(notdir $@)) $(LIBGCC) \
238 $(top_builddir)/lib/crtn.o
242 $(Q)$(INSTALL) -d $(dir $@)
243 $(Q)$(RM) $@ $@.$(2) $(dir $@)$(1)
245 $(Q)$(CC) $(LDFLAGS-$(notdir $@)) -Wl,-soname=$(notdir $@).$(2) \
246 $(NOSTDLIB_CFLAGS) -o $(dir $@)$(1) $(START_FILE-$(notdir $@)) \
248 $(LIBS-$(notdir $@)) $(LIBGCC) $(END_FILE-$(notdir $@))
249 $(Q)$(LN) -sf $(1) $@.$(2)
250 $(Q)$(LN) -sf $(1) $@
253 CFLAGS-.os+=$(PICFLAG)
254 CFLAGS-.oS+=$(PICFLAG) -DSHARED
256 %.o: %.c FORCE ; $(compile.c)
257 %.os: %.c FORCE ; $(compile.c)
258 %.oS: %.c FORCE ; $(compile.c)
259 %.o: %.S FORCE ; $(compile.S)
260 %.os: %.S FORCE ; $(compile.S)
261 %.oS: %.S FORCE ; $(compile.S)
262 %.o: %.s FORCE ; $(compile.S)
263 %.os: %.s FORCE ; $(compile.S)
264 %.oS: %.s FORCE ; $(compile.S)
265 %.i: %.c FORCE ; $(compile.i)
266 %.i: %.S FORCE ; $(compile.i)
267 %.s: %.c FORCE ; $(compile.s)
268 %.s: %.S FORCE ; $(compile.s)
270 $(top_builddir)lib/interp.c: | $(sub_headers)
271 $(Q)$(INSTALL) -d $(dir $@)
272 $(Q)echo "/* Force shared libraries to know about the correct library loader */" > $@
273 $(Q)echo "#include <features.h>" >> $@
274 $(Q)echo "const char __dl_ldso__[] __attribute__ ((section " \
275 "(\".interp\"))) =\""$(SHARED_LIB_LOADER_PREFIX)/$(UCLIBC_LDSO)"\";" >> $@
277 $(interp): $(top_builddir)lib/interp.c
279 $(Q)$(STRIPTOOL) -x -R .note -R .comment $@
282 @cd $(top_builddir); $(MAKE) lib/$(patsubst %.$(MAJOR_VERSION),%,$(notdir $@))
285 @cd $(top_builddir); $(MAKE) lib/$(patsubst %.$(MAJOR_VERSION),%,$(notdir $@))
289 ifeq ($(HAVE_SHARED)$(UCLIBC_FORMAT_SHARED_FLAT),y)
290 CRTS=$(top_builddir)lib/$(CRT).o $(top_builddir)lib/S$(CRT).o
292 CRTS=$(top_builddir)lib/$(CRT).o
295 ASFLAGS-$(CRT).o := -DL_$(CRT)
296 ASFLAGS-S$(CRT).o := $(PIEFLAG) -DL_S$(CRT)
297 $(CRTS): $(top_srcdir)libc/sysdeps/linux/$(TARGET_ARCH)/$(CRT).S
298 $(Q)$(INSTALL) -d $(dir $@)
300 $(Q)$(STRIPTOOL) -x -R .note -R .comment $@
302 ifeq ($(UCLIBC_CTOR_DTOR),y)
303 CTOR_TARGETS=$(top_builddir)lib/crti.o $(top_builddir)lib/crtn.o
308 ifeq ($(UCLIBC_FORMAT_FDPIC_ELF),y)
309 CRTRELOC=$(top_builddir)lib/crtreloc.o
310 $(CRTRELOC): $(top_builddir)lib/%.o : $(top_srcdir)libc/sysdeps/linux/$(TARGET_ARCH)/%.c
311 $(Q)$(INSTALL) -d $(dir $@)
315 ifneq ($(wildcard $(top_srcdir)libc/sysdeps/linux/$(TARGET_ARCH)/initfini.c),)
316 CFLAGS-initfini.s := -S -g0 $(PICFLAG) -fno-inline-functions -finhibit-size-directive
317 $(top_builddir)lib/initfini.s: $(top_srcdir)libc/sysdeps/linux/$(TARGET_ARCH)/initfini.c
320 $(top_builddir)lib/defs.h: $(top_builddir)lib/initfini.s
321 $(Q)sed -n -e '/@TESTS_BEGIN/,/@TESTS_END/p' $< | \
322 gawk -f $(top_srcdir)extra/scripts/defs.awk > $@.tmp
325 $(top_builddir)lib/crti.S: $(top_builddir)lib/initfini.s $(top_builddir)lib/defs.h
326 $(Q)sed -n -e '1,/@HEADER_ENDS/p' \
327 -e '/@_.*_PROLOG_BEGINS/,/@_.*_PROLOG_ENDS/p' \
328 -e '/@TRAILER_BEGINS/,$$p' $< > $@
330 $(top_builddir)lib/crtn.S: $(top_builddir)lib/initfini.s
331 $(Q)sed -n -e '1,/@HEADER_ENDS/p' \
332 -e '/@_.*_EPILOG_BEGINS/,/@_.*_EPILOG_ENDS/p' \
333 -e '/@TRAILER_BEGINS/,$$p' $< > $@
335 $(CTOR_TARGETS): $(top_builddir)lib/%.o : $(top_builddir)lib/%.S
336 $(Q)$(INSTALL) -d $(dir $@)
337 $(compile.S) $(PICFLAG) $(SSP_DISABLE_FLAGS)
339 $(CTOR_TARGETS): $(top_builddir)lib/%.o : $(top_srcdir)libc/sysdeps/linux/$(TARGET_ARCH)/%.S
340 $(Q)$(INSTALL) -d $(dir $@)
341 $(compile.S) $(PICFLAG) $(SSP_DISABLE_FLAGS)
344 #ifeq ($(TARGET_ARCH),nios)
345 #CRTS_COMPAT := $(top_builddir)lib/crt0.o
347 # ln -fs crt1.o $(top_builddir)lib/crt0.o
352 $(crt-y): $(CRTS) $(CTOR_TARGETS) $(CRTS_COMPAT) $(CRTRELOC)
353 $(CRTS) $(CTOR_TARGETS) $(CRTS_COMPAT) $(CRTRELOC): | headers
355 $(top_builddir)lib/$(NONSHARED_LIBNAME): $(libc-nonshared-y)
356 $(Q)$(INSTALL) -d $(dir $@)
361 $(top_builddir)lib/libpthread_nonshared.a: $(libpthread-nonshared-y)
362 $(Q)$(INSTALL) -d $(dir $@)
367 files.dep := $(libc-a-y) $(libc-so-y) $(libc-nonshared-y) \
368 $(libm-a-y) $(libm-so-y) \
369 $(libpthread-a-y) $(libpthread-so-y) $(libpthread-nonshared-y) \
370 $(libthread_db-a-y) $(libthread_db-so-y) \
371 $(librt-a-y) $(librt-so-y) $(libresolv-a-y) $(libresolv-so-y) \
372 $(libcrypt-a-y) $(libcrypt-so-y) $(libutil-a-y) $(libutil-so-y) \
373 $(libnsl-a-y) $(libnsl-so-y) $(ldso-y) $(libdl-a-y) $(libdl-so-y)
375 $(patsubst %.o,%.o.dep,$(filter %.o,$(files.dep))) \
376 $(patsubst %.os,%.os.dep,$(filter %.os,$(files.dep))) \
377 $(patsubst %.oS,%.oS.dep,$(filter %.oS,$(files.dep)))
378 # Oh, and prepend a dot to the basename so i don't have to change my habit of
379 # calling 'size thefile.o*'
380 .depends.dep := $(foreach f,$(.depends.dep),$(dir $(f)).$(notdir $(f)))
381 .depends.dep := $(wildcard $(.depends.dep))
385 clean: objclean-y headers_clean-y
387 $(Q)$(RM) $(.depends.dep)
389 objclean-y: $(objclean-y)
390 headers_clean-y: $(headers_clean-y)
392 ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
393 ifneq ($(strip $(.depends.dep)),)
395 -include $(.depends.dep)