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
8 # order is important, the stripping uses STRIP_FLAGS for lib-so, but not for lib-a
9 ifeq ($(HAVE_SHARED),y)
10 .LIBPATTERNS: "lib%.so"
11 libs: $(lib-so-y) $(lib-a-y)
12 $(lib-so-y): $(interp)
14 .LIBPATTERNS: "lib%.a"
15 ifeq ($(UCLIBC_FORMAT_SHARED_FLAT),y)
22 shared_objs = $(ldso-y) $(libc-y:.o=.os) $(libc-shared-y) $(libc-nonshared-y) $(libdl-so-y)
23 shared_objs += $(libcrypt-so-y) $(libintl-so-y) $(libm-so-y) $(libnsl-so-y) $(libpthread-so-y) $(libpthread-nonshared-y)
24 shared_objs += $(libthread_db-so-y) $(libresolv-so-y) $(librt-so-y) $(libutil-so-y)
25 ar_objs = $(libc-y) $(libc-static-y) $(libdl-a-y) $(libcrypt-a-y) $(libintl-a-y) $(libm-a-y) $(libnsl-a-y)
26 ar_objs += $(libpthread-a-y) $(libthread_db-a-y) $(libresolv-a-y) $(librt-a-y) $(libutil-a-y)
28 ar_objs := $(ar_objs:.o=.os)
31 ifeq ($(HAVE_SHARED),y)
32 all_objs: $(sort $(shared_objs) $(ar_objs))
36 $(shared_objs) $(ar_objs): | $(sub_headers)
38 headers-y: $(headers-y)
41 MAKEFLAGS += --no-print-directory
43 ifneq ($(findstring s,$(MAKEFLAGS)),)
44 export MAKE_IS_SILENT := y
49 export MAKE_IS_SILENT := n
51 ifneq ($(V)$(VERBOSE),)
61 show_objs = $(subst ../,,$@)
63 pur_disp_compile.c = echo " "CC $(show_objs)
64 pur_disp_compile.i = echo " "CPP $(show_objs)
65 pur_disp_compile.s = echo " "CC-S $(show_objs)
66 pur_disp_compile.u = echo " "CC $(show_objs)
67 pur_disp_compile.S = echo " "AS $(show_objs)
68 pur_disp_compile.m = $(pur_disp_compile.c)
69 pur_disp_compile-m = echo " "CC-m $(show_objs)
70 pur_disp_strip = echo " "STRIP $(STRIP_FLAGS) $@
71 pur_disp_t_strip = echo " "STRIP $(STRIP_FLAGS) $@
72 pur_disp_ar = echo " "AR $(ARFLAGS) $@
73 pur_disp_ld = echo " "LD $(1)
74 pur_disp_ln = echo " "LN $@
75 pur_disp_mkdir = echo " "MKDIR $@
76 pur_disp_gen = echo " "GEN $@
77 pur_disp_unifdef = echo " "UNIFDEF $@
79 sil_disp_compile.c = true
80 sil_disp_compile.i = true
81 sil_disp_compile.s = true
82 sil_disp_compile.u = true
83 sil_disp_compile.S = true
84 sil_disp_compile.m = true
85 sil_disp_compile-m = true
87 sil_disp_t_strip = true
93 sil_disp_unifdef = true
95 ver_disp_compile.c = echo $(cmd_compile.c)
96 ver_disp_compile.i = echo $(cmd_compile.i)
97 ver_disp_compile.s = echo $(cmd_compile.s)
98 ver_disp_compile.u = echo $(cmd_compile.u)
99 ver_disp_compile.S = echo $(cmd_compile.S)
100 ver_disp_compile.m = echo $(cmd_compile.m)
101 ver_disp_compile-m = echo $(cmd_compile-m)
102 ver_disp_strip = echo $(cmd_strip)
103 ver_disp_t_strip = echo $(cmd_t_strip)
104 ver_disp_ar = echo $(cmd_ar)
109 ver_disp_unifdef = echo $(cmd_unifdef)
111 disp_compile.c = $($(DISP)_disp_compile.c)
112 disp_compile.i = $($(DISP)_disp_compile.i)
113 disp_compile.s = $($(DISP)_disp_compile.s)
114 disp_compile.u = $($(DISP)_disp_compile.u)
115 disp_compile.S = $($(DISP)_disp_compile.S)
116 disp_compile.m = $($(DISP)_disp_compile.m)
117 disp_compile-m = $($(DISP)_disp_compile-m)
118 disp_strip = $($(DISP)_disp_strip)
119 disp_t_strip = $($(DISP)_disp_t_strip)
120 disp_ar = $($(DISP)_disp_ar)
121 disp_ld = $($(DISP)_disp_ld)
122 disp_ln = $($(DISP)_disp_ln)
123 disp_mkdir = $($(DISP)_disp_mkdir)
124 disp_gen = $($(DISP)_disp_gen)
125 disp_unifdef = $($(DISP)_disp_unifdef)
127 any-prereq = $(filter-out $(PHONY),$?) $(filter-out $(PHONY) $(wildcard $^),$^)
129 # True if not identical. Neither order nor whitespace nor identical flags
131 compare_flags = $(strip $(filter-out $(cmd_$(1)), $(cmd_$(@))) \
132 $(filter-out $(cmd_$(@)), $(cmd_$(1))))
134 # Rebuild if any prerequisite, the used CC or flags changed.
135 # Previously used flags are stored in the corresponding .%.dep files
136 maybe_exec = $(if $(strip $(compare_flags) $(any-prereq)), \
140 echo 'cmd_$@ := $(cmd_$1)' >> $(dir $@).$(notdir $@).dep)
142 CFLAGS_gen.dep = -MT $@ -MD -MP -MF $(dir $@).$(notdir $@).dep
144 cmd_compile.c = $(CC) -c $< -o $@ $(CFLAGS) $(ARCH_CFLAGS) \
145 $(CFLAGS-$(suffix $@)) \
146 $(filter-out $(CFLAGS-OMIT-$(notdir $<)),$(CFLAGS-$(notdir $(<D)))) \
147 $(CFLAGS-$(subst $(top_srcdir),,$(dir $<))) \
148 $(CFLAGS-$(notdir $<)) \
149 $(CFLAGS-$(notdir $@)) \
151 cmd_compile.i = $(cmd_compile.c:-c=-E -dD)
152 cmd_compile.s = $(cmd_compile.c:-c=-S)
153 cmd_compile.u = $(CC) $^ $(DEPS-$(notdir $@)) -o $@ $(CFLAGS) $(CFLAGS-$(notdir $(^D))) $(CFLAGS-$(notdir $@)) $(CFLAGS_gen.dep)
154 cmd_compile.S = $(filter-out -std=gnu99, $(cmd_compile.c)) -D__ASSEMBLER__ $(ASFLAGS) $(ARCH_ASFLAGS) $(ASFLAGS-$(suffix $@)) $(ASFLAGS-$(notdir $<)) $(ASFLAGS-$(notdir $@))
155 cmd_compile.m = $(cmd_compile.c) -DL_$(patsubst %$(suffix $(notdir $@)),%,$(notdir $@))
157 cmd_compile-m = $(CC) $^ -c -o $@ $(CFLAGS) $(ARCH_CFLAGS) $(CFLAGS-$(suffix $@)) $(CFLAGS-$(notdir $(@D))) $(CFLAGS-$(notdir $@))
158 cmd_strip = $(STRIPTOOL) $(STRIP_FLAGS) $^
159 cmd_t_strip = $(STRIPTOOL) $(STRIP_FLAGS) $@
160 cmd_ar = $(AR) $(ARFLAGS) $@ $^
162 # special suckage alert. We try to avoid --check-symlink-times thus we touch
169 compile.c = @$(call maybe_exec,compile.c)
170 compile.i = $(call maybe_exec,compile.i)
171 compile.s = $(call maybe_exec,compile.s)
172 compile.S = @$(call maybe_exec,compile.S)
173 compile.m = @$(call maybe_exec,compile.m)
174 compile-m = @$(disp_compile-m) ; $(cmd_compile-m)
175 do_strip = @$(disp_strip) ; $(cmd_strip)
176 do_t_strip= @$(disp_t_strip) ; $(cmd_t_strip)
177 do_ar = @$(disp_ar) ; $(cmd_ar)
178 do_unifdef= @$(disp_unifdef) ; $(cmd_unifdef)
181 @$(disp_compile.u) ; $(cmd_compile.u)
184 hcompile.u = $(HOSTCC) $^ $(DEPS-$(notdir $@)) -o $@ $(BUILD_LDFLAGS) $(BUILD_LDFLAGS-$(notdir $(^D))) $(BUILD_LDFLAGS-$(notdir $@)) $(BUILD_CFLAGS) $(BUILD_CFLAGS-$(notdir $(^D))) $(BUILD_CFLAGS-$(notdir $@))
185 hcompile.o = $(HOSTCC) $^ $(DEPS-$(notdir $@)) -c -o $@ $(BUILD_CFLAGS) $(BUILD_CFLAGS-$(notdir $(^D))) $(BUILD_CFLAGS-$(notdir $@))
188 $(Q)$(INSTALL) -d $(dir $@)
189 $(Q)$(RM) $@ $@.$(2) $(dir $@)$(1)
191 $(Q)$(CC) $(LDFLAGS-$(notdir $@)) -Wl,-soname=$(notdir $@).$(2) \
192 $(NOSTDLIB_CFLAGS) -o $(dir $@)$(1) $(START_FILE-$(notdir $@)) \
193 -Wl,--whole-archive $(firstword $^) -Wl,--no-whole-archive \
194 $(LIBS-$(notdir $@)) $(LIBGCC) $(END_FILE-$(notdir $@))
195 $(Q)$(LN) -sf $(1) $@.$(2)
196 $(Q)$(LN) -sf $(1) $@
199 # CRT files needed by link-flat.so
200 LINK_FLAT_CRTS := $(top_builddir)lib/Scrt1.o $(top_builddir)lib/crti.o \
201 $(top_builddir)lib/crtn.o
203 # Create a shared flat library from the archive named by the first dependency.
204 # $@ names the shared library's .gdb file, not the flat file itself.
205 # (This is because the .gdb suffix makes the ELF file more distinctive
206 # than the suffixless flat file.)
208 # Argument 1 is the shared library file -- i.e. $(@:.gdb=) -- and argument 2
209 # is the shared library identifier. If it wasn't for $(disp_ld), we could
210 # avoid passing $(@:.gdb=) as an argument and use $(@:.gdb=) instead of $(1).
212 # This is so far only used for libc, for which we want to link the entire
213 # libgcc into the shared object.
215 $(Q)$(INSTALL) -d $(dir $@)
218 $(Q)$(CC) $(LDFLAGS-$(notdir $@)) $(NOSTDLIB_CFLAGS) -o $(1) \
219 -Wl,-elf2flt -Wl,-shared-lib-id,$(2) $(top_builddir)lib/Scrt1.o \
220 $(top_builddir)/lib/crti.o -Wl,--whole-archive $(firstword $^) \
221 $(LIBGCC) -Wl,--no-whole-archive $(LIBS-$(notdir $@)) $(LIBGCC) \
222 $(top_builddir)/lib/crtn.o
226 $(Q)$(INSTALL) -d $(dir $@)
227 $(Q)$(RM) $@ $@.$(2) $(dir $@)$(1)
229 $(Q)$(CC) $(LDFLAGS-$(notdir $@)) -Wl,-soname=$(notdir $@).$(2) \
230 $(NOSTDLIB_CFLAGS) -o $(dir $@)$(1) $(START_FILE-$(notdir $@)) \
232 $(LIBS-$(notdir $@)) $(LIBGCC) $(END_FILE-$(notdir $@))
233 $(Q)$(LN) -sf $(1) $@.$(2)
234 $(Q)$(LN) -sf $(1) $@
237 CFLAGS-.os+=$(PICFLAG)
238 CFLAGS-.oS+=$(PICFLAG) -DSHARED
240 %.o: %.c FORCE ; $(compile.c)
241 %.os: %.c FORCE ; $(compile.c)
242 %.oS: %.c FORCE ; $(compile.c)
243 %.o: %.S FORCE ; $(compile.S)
244 %.os: %.S FORCE ; $(compile.S)
245 %.oS: %.S FORCE ; $(compile.S)
246 %.o: %.s FORCE ; $(compile.S)
247 %.os: %.s FORCE ; $(compile.S)
248 %.oS: %.s FORCE ; $(compile.S)
249 %.i: %.c FORCE ; $(compile.i)
250 %.i: %.S FORCE ; $(compile.i)
251 %.s: %.c FORCE ; $(compile.s)
252 %.s: %.S FORCE ; $(compile.s)
254 $(top_builddir)lib/interp.c: | $(sub_headers)
255 $(Q)$(INSTALL) -d $(dir $@)
256 $(Q)echo "/* Force shared libraries to know about the correct library loader */" > $@
257 $(Q)echo "#include <features.h>" >> $@
258 $(Q)echo "const char __dl_ldso__[] __attribute__ ((section " \
259 "(\".interp\"))) =\""$(SHARED_LIB_LOADER_PREFIX)/$(UCLIBC_LDSO)"\";" >> $@
261 $(interp): $(top_builddir)lib/interp.c
263 $(Q)$(STRIPTOOL) -x -R .note -R .comment $@
266 @cd $(top_builddir); $(MAKE) lib/$(patsubst %.$(MAJOR_VERSION),%,$(notdir $@))
269 @cd $(top_builddir); $(MAKE) lib/$(patsubst %.$(MAJOR_VERSION),%,$(notdir $@))
273 ifeq ($(HAVE_SHARED)$(UCLIBC_FORMAT_SHARED_FLAT),y)
274 CRTS=$(top_builddir)lib/$(CRT).o $(top_builddir)lib/S$(CRT).o
276 CRTS=$(top_builddir)lib/$(CRT).o
279 ASFLAGS-$(CRT).o := -DL_$(CRT)
280 ASFLAGS-S$(CRT).o := $(PIEFLAG) -DL_S$(CRT)
281 $(CRTS): $(top_srcdir)libc/sysdeps/linux/$(TARGET_ARCH)/$(CRT).S
282 $(Q)$(INSTALL) -d $(dir $@)
284 $(Q)$(STRIPTOOL) -x -R .note -R .comment $@
286 ifeq ($(UCLIBC_CTOR_DTOR),y)
287 CTOR_TARGETS=$(top_builddir)lib/crti.o $(top_builddir)lib/crtn.o
292 ifeq ($(UCLIBC_FORMAT_FDPIC_ELF),y)
293 CRTRELOC=$(top_builddir)lib/crtreloc.o
294 $(CRTRELOC): $(top_builddir)lib/%.o : $(top_srcdir)libc/sysdeps/linux/$(TARGET_ARCH)/%.c
295 $(Q)$(INSTALL) -d $(dir $@)
299 ifneq ($(wildcard $(top_srcdir)libc/sysdeps/linux/$(TARGET_ARCH)/initfini.c),)
300 CFLAGS-initfini.s := -S -g0 $(PICFLAG) -fno-inline-functions -finhibit-size-directive
301 $(top_builddir)lib/initfini.s: $(top_srcdir)libc/sysdeps/linux/$(TARGET_ARCH)/initfini.c
304 $(top_builddir)lib/defs.h: $(top_builddir)lib/initfini.s
305 $(Q)sed -n -e '/@TESTS_BEGIN/,/@TESTS_END/p' $< | \
309 $(top_builddir)lib/crti.S: $(top_builddir)lib/initfini.s $(top_builddir)lib/defs.h
310 $(Q)sed -n -e '1,/@HEADER_ENDS/p' \
311 -e '/@_.*_PROLOG_BEGINS/,/@_.*_PROLOG_ENDS/p' \
312 -e '/@TRAILER_BEGINS/,$$p' $< > $@
314 $(top_builddir)lib/crtn.S: $(top_builddir)lib/initfini.s
315 $(Q)sed -n -e '1,/@HEADER_ENDS/p' \
316 -e '/@_.*_EPILOG_BEGINS/,/@_.*_EPILOG_ENDS/p' \
317 -e '/@TRAILER_BEGINS/,$$p' $< > $@
319 $(CTOR_TARGETS): $(top_builddir)lib/%.o : $(top_builddir)lib/%.S
320 $(Q)$(INSTALL) -d $(dir $@)
321 $(compile.S) $(PICFLAG) $(SSP_DISABLE_FLAGS)
323 $(CTOR_TARGETS): $(top_builddir)lib/%.o : $(top_srcdir)libc/sysdeps/linux/$(TARGET_ARCH)/%.S
324 $(Q)$(INSTALL) -d $(dir $@)
325 $(compile.S) $(PICFLAG) $(SSP_DISABLE_FLAGS)
328 #ifeq ($(TARGET_ARCH),nios)
329 #CRTS_COMPAT := $(top_builddir)lib/crt0.o
331 # ln -fs crt1.o $(top_builddir)lib/crt0.o
336 $(crt-y): $(CRTS) $(CTOR_TARGETS) $(CRTS_COMPAT) $(CRTRELOC)
337 $(CRTS) $(CTOR_TARGETS) $(CRTS_COMPAT) $(CRTRELOC): | headers
339 $(top_builddir)lib/$(NONSHARED_LIBNAME): $(libc-nonshared-y)
340 $(Q)$(INSTALL) -d $(dir $@)
345 $(top_builddir)lib/libpthread_nonshared.a: $(libpthread-nonshared-y)
346 $(Q)$(INSTALL) -d $(dir $@)
351 files.dep := $(libc-a-y) $(libc-so-y) $(libc-nonshared-y) \
352 $(libm-a-y) $(libm-so-y) \
353 $(libpthread-a-y) $(libpthread-so-y) $(libpthread-nonshared-y) \
354 $(libthread_db-a-y) $(libthread_db-so-y) \
355 $(librt-a-y) $(librt-so-y) $(libresolv-a-y) $(libresolv-so-y) \
356 $(libcrypt-a-y) $(libcrypt-so-y) $(libutil-a-y) $(libutil-so-y) \
357 $(libnsl-a-y) $(libnsl-so-y) $(ldso-y) $(libdl-a-y) $(libdl-so-y)
359 $(patsubst %.o,%.o.dep,$(filter %.o,$(files.dep))) \
360 $(patsubst %.os,%.os.dep,$(filter %.os,$(files.dep))) \
361 $(patsubst %.oS,%.oS.dep,$(filter %.oS,$(files.dep)))
362 # Oh, and prepend a dot to the basename so i don't have to change my habit of
363 # calling 'size thefile.o*'
364 .depends.dep := $(foreach f,$(.depends.dep),$(dir $(f)).$(notdir $(f)))
365 .depends.dep := $(wildcard $(.depends.dep))
367 ifneq ($(strip $(.depends.dep)),)
368 -include $(.depends.dep)
371 .PHONY: dummy $(PHONY)
374 clean: objclean-y headers_clean-y
376 $(Q)$(RM) $(.depends.dep)
378 objclean-y: $(objclean-y)
379 headers_clean-y: $(headers_clean-y)
382 all check clean realclean distclean test \
383 config dist menuconfig oldconfig release \