Makerules 12 KB

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  1. #
  2. # Licensed under LGPL v2.1, see the file COPYING.LIB in this tarball for details.
  3. #
  4. .SUFFIXES: .c .S .o .os .oS .so .a .s .i
  5. PHONY := FORCE
  6. # order is important, the stripping uses STRIP_FLAGS for lib-so, but not for lib-a
  7. ifeq ($(HAVE_SHARED),y)
  8. .LIBPATTERNS: "lib%.so"
  9. libs: $(lib-so-y) $(lib-a-y)
  10. $(lib-so-y): $(interp)
  11. else
  12. .LIBPATTERNS: "lib%.a"
  13. ifeq ($(UCLIBC_FORMAT_SHARED_FLAT),y)
  14. libs: $(lib-gdb-y)
  15. endif
  16. libs: $(lib-a-y)
  17. endif
  18. objs: all_objs
  19. shared_objs = $(ldso-y) $(libc-y:.o=.os) $(libc-shared-y) $(libc-nonshared-y) $(libdl-so-y)
  20. shared_objs += $(libcrypt-so-y) $(libintl-so-y) $(libm-so-y) $(libnsl-so-y) $(libpthread-so-y) $(libpthread-nonshared-y)
  21. shared_objs += $(libthread_db-so-y) $(libresolv-so-y) $(librt-so-y) $(libutil-so-y)
  22. ar_objs = $(libc-y) $(libc-static-y) $(libdl-a-y) $(libcrypt-a-y) $(libintl-a-y) $(libm-a-y) $(libnsl-a-y)
  23. ar_objs += $(libpthread-a-y) $(libthread_db-a-y) $(libresolv-a-y) $(librt-a-y) $(libutil-a-y)
  24. ifeq ($(DOPIC),y)
  25. ar_objs := $(ar_objs:.o=.os)
  26. endif
  27. ifeq ($(HAVE_SHARED),y)
  28. all_objs: $(sort $(shared_objs) $(ar_objs))
  29. else
  30. all_objs: $(ar_objs)
  31. endif
  32. $(shared_objs) $(ar_objs): | $(sub_headers)
  33. headers-y: $(headers-y)
  34. @true
  35. MAKEFLAGS += --no-print-directory
  36. SHELL_SET_X := set +x
  37. ifneq ($(findstring s,$(MAKEFLAGS)),)
  38. export MAKE_IS_SILENT := y
  39. SECHO := -@false
  40. DISP := sil
  41. Q := @
  42. else
  43. export MAKE_IS_SILENT := n
  44. SECHO := @echo
  45. ifneq ($(V)$(VERBOSE),)
  46. SHELL_SET_X := set -x
  47. DISP := ver
  48. Q :=
  49. else
  50. DISP := pur
  51. Q := @
  52. endif
  53. endif
  54. show_objs = $(subst ../,,$@)
  55. pur_disp_compile.c = echo " "CC $(show_objs)
  56. pur_disp_compile.i = echo " "CPP $(show_objs)
  57. pur_disp_compile.s = echo " "CC-S $(show_objs)
  58. pur_disp_compile.u = echo " "CC $(show_objs)
  59. pur_disp_compile.S = echo " "AS $(show_objs)
  60. pur_disp_compile.m = $(pur_disp_compile.c)
  61. pur_disp_compile-m = echo " "CC-m $(show_objs)
  62. pur_disp_strip = echo " "STRIP $(STRIP_FLAGS) $@
  63. pur_disp_t_strip = echo " "STRIP $(STRIP_FLAGS) $@
  64. pur_disp_ar = echo " "AR $(ARFLAGS) $@
  65. pur_disp_ld = echo " "LD $(1)
  66. sil_disp_compile.c = true
  67. sil_disp_compile.i = true
  68. sil_disp_compile.s = true
  69. sil_disp_compile.u = true
  70. sil_disp_compile.S = true
  71. sil_disp_compile.m = true
  72. sil_disp_compile-m = true
  73. sil_disp_strip = true
  74. sil_disp_t_strip = true
  75. sil_disp_ar = true
  76. sil_disp_ld = true
  77. ver_disp_compile.c = echo $(cmd_compile.c)
  78. ver_disp_compile.i = echo $(cmd_compile.i)
  79. ver_disp_compile.s = echo $(cmd_compile.s)
  80. ver_disp_compile.u = echo $(cmd_compile.u)
  81. ver_disp_compile.S = echo $(cmd_compile.S)
  82. ver_disp_compile.m = echo $(cmd_compile.m)
  83. ver_disp_compile-m = echo $(cmd_compile-m)
  84. ver_disp_strip = echo $(cmd_strip)
  85. ver_disp_t_strip = echo $(cmd_t_strip)
  86. ver_disp_ar = echo $(cmd_ar)
  87. ver_disp_ld =
  88. disp_compile.c = $($(DISP)_disp_compile.c)
  89. disp_compile.i = $($(DISP)_disp_compile.i)
  90. disp_compile.s = $($(DISP)_disp_compile.s)
  91. disp_compile.u = $($(DISP)_disp_compile.u)
  92. disp_compile.S = $($(DISP)_disp_compile.S)
  93. disp_compile.m = $($(DISP)_disp_compile.m)
  94. disp_compile-m = $($(DISP)_disp_compile-m)
  95. disp_strip = $($(DISP)_disp_strip)
  96. disp_t_strip = $($(DISP)_disp_t_strip)
  97. disp_ar = $($(DISP)_disp_ar)
  98. disp_ld = $($(DISP)_disp_ld)
  99. any-prereq = $(filter-out $(PHONY),$?) $(filter-out $(PHONY) $(wildcard $^),$^)
  100. # True if not identical. Neither order nor whitespace nor identical flags
  101. # matter.
  102. compare_flags = $(strip $(filter-out $(cmd_$(1)), $(cmd_$(@))) \
  103. $(filter-out $(cmd_$(@)), $(cmd_$(1))))
  104. # Rebuild if any prerequisite, the used CC or flags changed.
  105. # Previously used flags are stored in the corresponding .%.dep files
  106. maybe_exec = $(if $(strip $(compare_flags) $(any-prereq)), \
  107. @set -e; \
  108. $(disp_$(1)); \
  109. $(cmd_$(1)); \
  110. echo 'cmd_$@ := $(cmd_$1)' >> $(dir $@).$(notdir $@).dep)
  111. CFLAGS_gen.dep = -MT $@ -MD -MP -MF $(dir $@).$(notdir $@).dep
  112. cmd_compile.c = $(CC) -c $< -o $@ $(CFLAGS) $(ARCH_CFLAGS) \
  113. $(CFLAGS-$(suffix $@)) \
  114. $(filter-out $(CFLAGS-OMIT-$(notdir $<)),$(CFLAGS-$(notdir $(<D)))) \
  115. $(CFLAGS-$(subst $(top_srcdir),,$(dir $<))) \
  116. $(CFLAGS-$(notdir $<)) \
  117. $(CFLAGS-$(notdir $@)) \
  118. $(CFLAGS_gen.dep)
  119. cmd_compile.i = $(cmd_compile.c:-c=-E -dD)
  120. cmd_compile.s = $(cmd_compile.c:-c=-S)
  121. cmd_compile.u = $(CC) $^ $(DEPS-$(notdir $@)) -o $@ $(CFLAGS) $(CFLAGS-$(notdir $(^D))) $(CFLAGS-$(notdir $@)) $(CFLAGS_gen.dep)
  122. cmd_compile.S = $(filter-out -std=gnu99, $(cmd_compile.c)) -D__ASSEMBLER__ $(ASFLAGS) $(ARCH_ASFLAGS) $(ASFLAGS-$(suffix $@)) $(ASFLAGS-$(notdir $<)) $(ASFLAGS-$(notdir $@))
  123. cmd_compile.m = $(cmd_compile.c) -DL_$(patsubst %$(suffix $(notdir $@)),%,$(notdir $@))
  124. cmd_compile-m = $(CC) $^ -c -o $@ $(CFLAGS) $(ARCH_CFLAGS) $(CFLAGS-$(suffix $@)) $(CFLAGS-$(notdir $(@D))) $(CFLAGS-$(notdir $@))
  125. cmd_strip = $(STRIPTOOL) $(STRIP_FLAGS) $^
  126. cmd_t_strip = $(STRIPTOOL) $(STRIP_FLAGS) $@
  127. cmd_ar = $(AR) $(ARFLAGS) $@ $^
  128. compile.c = @$(call maybe_exec,compile.c)
  129. compile.i = $(call maybe_exec,compile.i)
  130. compile.s = $(call maybe_exec,compile.s)
  131. compile.S = @$(call maybe_exec,compile.S)
  132. compile.m = @$(call maybe_exec,compile.m)
  133. compile-m = @$(disp_compile-m) ; $(cmd_compile-m)
  134. do_strip = @$(disp_strip) ; $(cmd_strip)
  135. do_t_strip= @$(disp_t_strip) ; $(cmd_t_strip)
  136. do_ar = @$(disp_ar) ; $(cmd_ar)
  137. define compile.u
  138. @$(disp_compile.u) ; $(cmd_compile.u)
  139. @$(disp_t_strip)
  140. endef
  141. hcompile.u = $(HOSTCC) $^ $(DEPS-$(notdir $@)) -o $@ $(BUILD_LDFLAGS) $(BUILD_LDFLAGS-$(notdir $(^D))) $(BUILD_LDFLAGS-$(notdir $@)) $(BUILD_CFLAGS) $(BUILD_CFLAGS-$(notdir $(^D))) $(BUILD_CFLAGS-$(notdir $@))
  142. hcompile.o = $(HOSTCC) $^ $(DEPS-$(notdir $@)) -c -o $@ $(BUILD_CFLAGS) $(BUILD_CFLAGS-$(notdir $(^D))) $(BUILD_CFLAGS-$(notdir $@))
  143. define link.so
  144. $(Q)$(INSTALL) -d $(dir $@)
  145. $(Q)$(RM) $@ $@.$(2) $(dir $@)$(1)
  146. @$(disp_ld)
  147. $(Q)$(CC) $(LDFLAGS-$(notdir $@)) -Wl,-soname=$(notdir $@).$(2) \
  148. $(NOSTDLIB_CFLAGS) -o $(dir $@)$(1) $(START_FILE-$(notdir $@)) \
  149. -Wl,--whole-archive $(firstword $^) -Wl,--no-whole-archive \
  150. $(LIBS-$(notdir $@)) $(LIBGCC) $(END_FILE-$(notdir $@))
  151. $(Q)$(LN) -sf $(1) $@.$(2)
  152. $(Q)$(LN) -sf $(1) $@
  153. endef
  154. # CRT files needed by link-flat.so
  155. LINK_FLAT_CRTS := $(top_builddir)lib/Scrt1.o $(top_builddir)lib/crti.o \
  156. $(top_builddir)lib/crtn.o
  157. # Create a shared flat library from the archive named by the first dependency.
  158. # $@ names the shared library's .gdb file, not the flat file itself.
  159. # (This is because the .gdb suffix makes the ELF file more distinctive
  160. # than the suffixless flat file.)
  161. #
  162. # Argument 1 is the shared library file -- i.e. $(@:.gdb=) -- and argument 2
  163. # is the shared library identifier. If it wasn't for $(disp_ld), we could
  164. # avoid passing $(@:.gdb=) as an argument and use $(@:.gdb=) instead of $(1).
  165. #
  166. # This is so far only used for libc, for which we want to link the entire
  167. # libgcc into the shared object.
  168. define link-flat.so
  169. $(Q)$(INSTALL) -d $(dir $@)
  170. $(Q)$(RM) $(1) $@
  171. @$(disp_ld)
  172. $(Q)$(CC) $(LDFLAGS-$(notdir $@)) $(NOSTDLIB_CFLAGS) -o $(1) \
  173. -Wl,-elf2flt -Wl,-shared-lib-id,$(2) $(top_builddir)lib/Scrt1.o \
  174. $(top_builddir)/lib/crti.o -Wl,--whole-archive $(firstword $^) \
  175. $(LIBGCC) -Wl,--no-whole-archive $(LIBS-$(notdir $@)) $(LIBGCC) \
  176. $(top_builddir)/lib/crtn.o
  177. endef
  178. define linkm.so
  179. $(Q)$(INSTALL) -d $(dir $@)
  180. $(Q)$(RM) $@ $@.$(2) $(dir $@)$(1)
  181. @$(disp_ld)
  182. $(Q)$(CC) $(LDFLAGS-$(notdir $@)) -Wl,-soname=$(notdir $@).$(2) \
  183. $(NOSTDLIB_CFLAGS) -o $(dir $@)$(1) $(START_FILE-$(notdir $@)) \
  184. $^ \
  185. $(LIBS-$(notdir $@)) $(LIBGCC) $(END_FILE-$(notdir $@))
  186. $(Q)$(LN) -sf $(1) $@.$(2)
  187. $(Q)$(LN) -sf $(1) $@
  188. endef
  189. CFLAGS-.os+=$(PICFLAG)
  190. CFLAGS-.oS+=$(PICFLAG) -DSHARED
  191. %.o: %.c FORCE ; $(compile.c)
  192. %.os: %.c FORCE ; $(compile.c)
  193. %.oS: %.c FORCE ; $(compile.c)
  194. %.o: %.S FORCE ; $(compile.S)
  195. %.os: %.S FORCE ; $(compile.S)
  196. %.oS: %.S FORCE ; $(compile.S)
  197. %.o: %.s FORCE ; $(compile.S)
  198. %.os: %.s FORCE ; $(compile.S)
  199. %.oS: %.s FORCE ; $(compile.S)
  200. %.i: %.c FORCE ; $(compile.i)
  201. %.i: %.S FORCE ; $(compile.i)
  202. %.s: %.c FORCE ; $(compile.s)
  203. %.s: %.S FORCE ; $(compile.s)
  204. $(top_builddir)lib/interp.c: | $(sub_headers)
  205. $(Q)$(INSTALL) -d $(dir $@)
  206. $(Q)echo "/* Force shared libraries to know about the correct library loader */" > $@
  207. $(Q)echo "#include <features.h>" >> $@
  208. $(Q)echo "const char __dl_ldso__[] __attribute__ ((section " \
  209. "(\".interp\"))) =\""$(SHARED_LIB_LOADER_PREFIX)/$(UCLIBC_LDSO)"\";" >> $@
  210. $(interp): $(top_builddir)lib/interp.c
  211. $(compile.c)
  212. $(Q)$(STRIPTOOL) -x -R .note -R .comment $@
  213. $(ldso):
  214. @cd $(top_builddir); $(MAKE) lib/$(patsubst %.$(MAJOR_VERSION),%,$(notdir $@))
  215. $(libc):
  216. @cd $(top_builddir); $(MAKE) lib/$(patsubst %.$(MAJOR_VERSION),%,$(notdir $@))
  217. $(headers_dep): $(top_srcdir)extra/scripts/gen_bits_syscall_h.sh
  218. $(Q)cd $(top_builddir); $(MAKE) pregen
  219. CRT := crt1
  220. ifeq ($(HAVE_SHARED)$(UCLIBC_FORMAT_SHARED_FLAT),y)
  221. CRTS=$(top_builddir)lib/$(CRT).o $(top_builddir)lib/S$(CRT).o
  222. else
  223. CRTS=$(top_builddir)lib/$(CRT).o
  224. endif
  225. ASFLAGS-$(CRT).o := -DL_$(CRT)
  226. ASFLAGS-S$(CRT).o := $(PIEFLAG) -DL_S$(CRT)
  227. $(CRTS): $(top_srcdir)libc/sysdeps/linux/$(TARGET_ARCH)/$(CRT).S
  228. $(Q)$(INSTALL) -d $(dir $@)
  229. $(compile.S)
  230. $(Q)$(STRIPTOOL) -x -R .note -R .comment $@
  231. ifeq ($(UCLIBC_CTOR_DTOR),y)
  232. CTOR_TARGETS=$(top_builddir)lib/crti.o $(top_builddir)lib/crtn.o
  233. else
  234. CTOR_TARGETS:=
  235. endif
  236. ifeq ($(UCLIBC_FORMAT_FDPIC_ELF),y)
  237. CRTRELOC=$(top_builddir)lib/crtreloc.o
  238. $(CRTRELOC): $(top_builddir)lib/%.o : $(top_srcdir)libc/sysdeps/linux/$(TARGET_ARCH)/%.c
  239. $(Q)$(INSTALL) -d $(dir $@)
  240. $(compile.c)
  241. endif
  242. ifneq ($(wildcard $(top_srcdir)libc/sysdeps/linux/$(TARGET_ARCH)/initfini.c),)
  243. CFLAGS-initfini.s := -S -g0 $(PICFLAG) -fno-inline-functions -finhibit-size-directive
  244. $(top_builddir)lib/initfini.s: $(top_srcdir)libc/sysdeps/linux/$(TARGET_ARCH)/initfini.c
  245. $(compile.c)
  246. $(top_builddir)lib/defs.h: $(top_builddir)lib/initfini.s
  247. $(Q)sed -n -e '/@TESTS_BEGIN/,/@TESTS_END/p' $< | \
  248. gawk -f $(top_srcdir)extra/scripts/defs.awk > $@.tmp
  249. $(Q)mv $@.tmp $@
  250. $(top_builddir)lib/crti.S: $(top_builddir)lib/initfini.s $(top_builddir)lib/defs.h
  251. $(Q)sed -n -e '1,/@HEADER_ENDS/p' \
  252. -e '/@_.*_PROLOG_BEGINS/,/@_.*_PROLOG_ENDS/p' \
  253. -e '/@TRAILER_BEGINS/,$$p' $< > $@
  254. $(top_builddir)lib/crtn.S: $(top_builddir)lib/initfini.s
  255. $(Q)sed -n -e '1,/@HEADER_ENDS/p' \
  256. -e '/@_.*_EPILOG_BEGINS/,/@_.*_EPILOG_ENDS/p' \
  257. -e '/@TRAILER_BEGINS/,$$p' $< > $@
  258. $(CTOR_TARGETS): $(top_builddir)lib/%.o : $(top_builddir)lib/%.S
  259. $(Q)$(INSTALL) -d $(dir $@)
  260. $(compile.S) $(PICFLAG) $(SSP_DISABLE_FLAGS)
  261. else
  262. $(CTOR_TARGETS): $(top_builddir)lib/%.o : $(top_srcdir)libc/sysdeps/linux/$(TARGET_ARCH)/%.S
  263. $(Q)$(INSTALL) -d $(dir $@)
  264. $(compile.S) $(PICFLAG) $(SSP_DISABLE_FLAGS)
  265. endif
  266. #ifeq ($(TARGET_ARCH),nios)
  267. #CRTS_COMPAT := $(top_builddir)lib/crt0.o
  268. #$(CRTS_COMPAT):
  269. # ln -fs crt1.o $(top_builddir)lib/crt0.o
  270. #else
  271. CRTS_COMPAT :=
  272. #endif
  273. $(crt-y): $(CRTS) $(CTOR_TARGETS) $(CRTS_COMPAT) $(CRTRELOC)
  274. $(CRTS) $(CTOR_TARGETS) $(CRTS_COMPAT) $(CRTRELOC): | headers
  275. $(top_builddir)lib/$(NONSHARED_LIBNAME): $(libc-nonshared-y)
  276. $(Q)$(INSTALL) -d $(dir $@)
  277. $(Q)$(RM) $@
  278. $(do_strip)
  279. $(do_ar)
  280. $(top_builddir)lib/libpthread_nonshared.a: $(libpthread-nonshared-y)
  281. $(Q)$(INSTALL) -d $(dir $@)
  282. $(Q)$(RM) $@
  283. $(do_strip)
  284. $(do_ar)
  285. files.dep := $(libc-a-y) $(libc-so-y) $(libc-nonshared-y) $(libm-a-y) $(libm-so-y)
  286. files.dep += $(libpthread-a-y) $(libpthread-so-y) $(libthread_db-a-y) $(libthread_db-so-y)
  287. files.dep += $(librt-a-y) $(librt-so-y) $(libresolv-a-y) $(libresolv-so-y)
  288. files.dep += $(libcrypt-a-y) $(libcrypt-so-y) $(libutil-a-y) $(libutil-so-y)
  289. files.dep += $(libnsl-a-y) $(libnsl-so-y) $(ldso-y) $(libdl-a-y) $(libdl-so-y)
  290. .depends.dep := \
  291. $(patsubst %.o,%.o.dep,$(filter %.o,$(files.dep))) \
  292. $(patsubst %.os,%.os.dep,$(filter %.os,$(files.dep))) \
  293. $(patsubst %.oS,%.oS.dep,$(filter %.oS,$(files.dep)))
  294. # Oh, and prepend a dot to the basename so i don't have to change my habit of
  295. # calling 'size thefile.o*'
  296. .depends.dep := $(foreach f,$(.depends.dep),$(dir $(f)).$(notdir $(f)))
  297. ifdef .depends.dep
  298. -include $(.depends.dep)
  299. endif
  300. .PHONY: dummy $(PHONY)
  301. FORCE:
  302. clean: objclean-y headers_clean-y
  303. realclean: clean
  304. $(Q)$(RM) $(.depends.dep)
  305. objclean-y: $(objclean-y)
  306. headers_clean-y: $(headers_clean-y)
  307. .PHONY: \
  308. all check clean realclean distclean test \
  309. config dist menuconfig oldconfig release \
  310. subdirs utils