mirror of
https://sourceware.org/git/glibc.git
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2003-05-01 Roland McGrath <roland@redhat.com>
* Makerules (compile-mkdep-flags): New variable, pass -MD -MF $@.d. (compile-command.S): Don't use ifndef. Append $(compile-mkdep-flags). (compile-command.s, compile-command.c): Likewise. ($(objpfx)%.d): All such pattern rules removed. ($(+sysdir_pfx)sysd-rules): Don't generate them. ($(common-objpfx)dummy.d): Target removed. (make-dummy-dep): Variable removed. (generate-md5): Likewise. (%.d: %.dt): New pattern rule. (+depfiles): Use $(wildcard) function to get just existing *.d files and .d files for existing *.dt files. (common-clean): Remove all *.d and *.dt files. (before-compile): Add $(objpfx). when it doesn't exist, regardless of $(no_deps). * elf/rtld-Rules ($(objpfx)rtld-%.d): All such pattern rules removed. (rtld-depfiles): Use .os.d instead of .d names. Include existing *.d files and .d files for existing *.dt files. * Makerules ($(common-objpfx)%.make): Protect with [! subdir]. Use -MD, -MT and -MF flags instead of SUNPRO_DEPENDENCIES variable.
This commit is contained in:
Roland McGrath
parent
9a7178d611
commit
d73f5331ce
86
Makerules
86
Makerules
@ -144,10 +144,9 @@ vpath %.sym $(sysdirs)
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before-compile += $(gen-as-const-headers:%.sym=$(common-objpfx)%.h)
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# When we have no deps pass doing it, then make sure the subdirectory
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# for object files gets created.
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ifdef no_deps
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# Make sure the subdirectory for object files gets created.
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ifdef objpfx
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ifeq (,$(wildcard $(objpfx).))
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before-compile += $(objpfx).
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$(objpfx).:
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$(make-target-directory)
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@ -166,20 +165,25 @@ ifdef before-compile
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$(before-compile):
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endif
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ifndef subdir
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# If a makefile needs to do something conditional on something that
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# can only be figured out from headers, write a FOO.make.c input
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# file that uses cpp contructs and contains @@@ LINE @@@ for each LINE
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# to emit in the generated makefile, and use -include $(common-objpfx)FOO.make.
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#
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# We only generate these in the top-level makefile, to avoid any weirdness
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# from subdir-specific makefile tweaks creeping in on an update.
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$(common-objpfx)%.make: $(..)%.make.c $(..)Makerules $(before-compile)
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rm -f $@T $@.dT
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(echo '# Generated from $*.make.c by Makerules.'; \
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SUNPRO_DEPENDENCIES='$@.dT $$(common-objpfx)$*.make' \
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$(CC) $(CFLAGS) $(CPPFLAGS) -E $< \
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-MD -MT '$$(common-objpfx)$*.make' -MF $@.dT \
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| sed -n '/@@@/{s/@@@[ ]*\(.*\)@@@/\1/;s/[ ]*$$//p;}'; \
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echo 'common-generated += $(@F)'; \
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sed $(sed-remove-objpfx) $(sed-remove-dotdot) $@.dT; \
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rm -f $@.dT) > $@T
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mv -f $@T $@
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endif
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ifdef subdir
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sed-remove-dotdot := -e 's@ *\.\.\/\([^ \]*\)@ $$(..)\1@g'
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@ -193,15 +197,6 @@ endif
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# later directory would be chosen over a .c file in an earlier directory,
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# which does not preserve the desired sysdeps ordering behavior.
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# When making the list of .d files to include, we can't know which ones
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# have source in .s files, and thus do not in fact need a .d file.
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# So we must define rules to make .d files for .s files.
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define make-dummy-dep
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$(addprefix ln $(common-objpfx)dummy.d ,$(filter-out $(wildcard $@),$@))
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endef
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$(common-objpfx)dummy.d:
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echo '# .s files cannot contain includes, so they need no deps.' > $@
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# It matters that this set of rules, for compiling from sources in
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# the current directory (the $srcdir/$subdir) come before the
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# generated sysdep rules in included from sysd-rules below. When
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@ -212,21 +207,18 @@ $(objpfx)%$o: %.S $(before-compile); $$(compile-command.S)
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endef
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object-suffixes-left := $(all-object-suffixes)
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include $(o-iterator)
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$(objpfx)%.d: %.S $(before-compile); $(+make-deps)
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define o-iterator-doit
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$(objpfx)%$o: %.s $(before-compile); $$(compile-command.s)
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endef
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object-suffixes-left := $(all-object-suffixes)
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include $(o-iterator)
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$(objpfx)%.d: %.s $(common-objpfx)dummy.d; $(make-dummy-dep)
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define o-iterator-doit
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$(objpfx)%$o: %.c $(before-compile); $$(compile-command.c)
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endef
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object-suffixes-left := $(all-object-suffixes)
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include $(o-iterator)
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$(objpfx)%.d: %.c $(before-compile); $(+make-deps)
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# Omit the objpfx rules when building in the source tree, because
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# objpfx is empty and so these rules just override the ones above.
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@ -238,21 +230,18 @@ $(objpfx)%$o: $(objpfx)%.S $(before-compile); $$(compile-command.S)
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endef
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object-suffixes-left := $(all-object-suffixes)
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include $(o-iterator)
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$(objpfx)%.d: $(objpfx)%.S $(before-compile); $(+make-deps)
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define o-iterator-doit
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$(objpfx)%$o: $(objpfx)%.s $(before-compile); $$(compile-command.s)
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endef
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object-suffixes-left := $(all-object-suffixes)
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include $(o-iterator)
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$(objpfx)%.d: $(objpfx)%.s $(common-objpfx)dummy.d; $(make-dummy-dep)
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define o-iterator-doit
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$(objpfx)%$o: $(objpfx)%.c $(before-compile); $$(compile-command.c)
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endef
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object-suffixes-left := $(all-object-suffixes)
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include $(o-iterator)
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$(objpfx)%.d: $(objpfx)%.c $(before-compile); $(+make-deps)
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endif
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# System-dependent makefiles can put in `inhibit-sysdep-asm' wildcard
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@ -301,26 +290,6 @@ $(+sysdir_pfx)sysd-rules: $(+sysdir_pfx)config.make $(..)Makerules \
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echo "\$$(objpfx)ptw-%$$o: $$dir/%.c \$$(before-compile); \
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\$$(compile-command.c)"; \
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done; \
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$(open-check-inhibit-asm) \
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echo "\$$(objpfx)%.d: $$dir/%.s \$$(common-objpfx)dummy.d; \
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\$$(make-dummy-dep)"; \
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echo "\$$(objpfx)rtld-%.d: $$dir/%.s \$$(common-objpfx)dummy.d; \
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\$$(make-dummy-dep)"; \
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echo "\$$(objpfx)ptw-%.d: $$dir/%.s \$$(common-objpfx)dummy.d; \
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\$$(make-dummy-dep)"; \
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echo "\$$(objpfx)%.d: $$dir/%.S \$$(before-compile); \
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\$$(+make-deps)"; \
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echo "\$$(objpfx)rtld-%.d: $$dir/%.S \$$(before-compile); \
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\$$(+make-deps)"; \
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echo "\$$(objpfx)ptw-%.d: $$dir/%.S \$$(before-compile); \
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\$$(+make-deps)"; \
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$(close-check-inhibit-asm) \
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echo "\$$(objpfx)%.d: $$dir/%.c \$$(before-compile); \
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\$$(+make-deps)"; \
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echo "\$$(objpfx)rtld-%.d: $$dir/%.c \$$(before-compile); \
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\$$(+make-deps)"; \
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echo "\$$(objpfx)ptw-%.d: $$dir/%.c \$$(before-compile); \
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\$$(+make-deps)"; \
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echo "\$$(objpfx)m_%.S: $$dir/s_%.S; \$$(+make-include-of-dep)"; \
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echo "\$$(objpfx)m_%.c: $$dir/s_%.c; \$$(+make-include-of-dep)"; \
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done; \
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@ -383,16 +352,11 @@ endif # avoid-generated
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endif # $(versioning) = yes
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endif # sysd-sorted-done
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ifndef compile-command.S
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compile-command.S = $(compile.S) $(OUTPUT_OPTION)
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endif
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ifndef compile-command.s
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compile-command.s = $(COMPILE.s) $< $(OUTPUT_OPTION)
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endif
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ifndef compile-command.c
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compile-command.c = $(compile.c) $(OUTPUT_OPTION)
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endif
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# Generate .dT files as we compile.
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compile-mkdep-flags = -MD -MP -MF $@.dt
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compile-command.S = $(compile.S) $(OUTPUT_OPTION) $(compile-mkdep-flags)
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compile-command.s = $(COMPILE.s) $< $(OUTPUT_OPTION) $(compile-mkdep-flags)
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compile-command.c = $(compile.c) $(OUTPUT_OPTION) $(compile-mkdep-flags)
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# GCC can grok options after the file name, and it looks nicer that way.
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compile.c = $(CC) $< -c $(CFLAGS) $(CPPFLAGS)
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@ -402,15 +366,6 @@ COMPILE.S = $(CC) -c $(CPPFLAGS) $(S-CPPFLAGS) \
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$(ASFLAGS) $(ASFLAGS-$(suffix $@))
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COMPILE.s = $(filter-out -pipe,$(CC)) -c $(ASFLAGS)
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# If we want to generate MD5 checksums for the sources do this now.
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ifeq ($(md5),yes)
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generate-md5 = ; rm -f $(@:.d=.md5); \
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$(CC) -E $< $(CFLAGS) $(CPPFLAGS) $($(patsubst .%,%,$(suffix $(<F)))-CPPFLAGS) | \
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sed '/^\#/d;/^[[:space:]]*$$/d' | md5sum > $(@:.d=.md5)
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else
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generate-md5 =
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endif
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# We need this for the output to go in the right place. It will default to
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# empty if make was configured to work with a cc that can't grok -c and -o
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# together. You can't compile the C library with such a compiler.
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@ -420,6 +375,7 @@ OUTPUT_OPTION = -o $@
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# the dependency run for C sources. But having it for assembly sources can
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# get the wrong predefines.
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S-CPPFLAGS = -DASSEMBLER $(asm-CPPFLAGS)
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define +make-deps
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$(make-target-directory)
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$(+mkdep) $< $(if $(filter %.c,$<),$(CFLAGS)) \
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@ -428,6 +384,7 @@ $(+mkdep) $< $(if $(filter %.c,$<),$(CFLAGS)) \
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$(sed-remove-objpfx) > $(@:.d=.T)
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mv -f $(@:.d=.T) $@ $(generate-md5)
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endef
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ifneq (,$(objpfx))
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# Continuation lines here are dangerous because they introduce spaces!
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define sed-remove-objpfx
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@ -689,6 +646,15 @@ endif
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+depfiles := $(addprefix $(objpfx),\
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$(filter-out $(addsuffix .d,$(omit-deps)),\
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$(+depfiles)))
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all-dt-files := $(foreach o,$(object-suffixes-for-libc),$(+depfiles:.d=$o.dt))
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+depfiles := $(patsubst %.dt,%.d,$(wildcard $(all-dt-files))) \
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$(wildcard $(all-dt-files:.dt=.d))
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# This is a funny rule in that it removes its input file.
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%.d: %.dt
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@sed $(sed-remove-objpfx) $< > $(@:.d=.T) && \
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mv -f $(@:.d=.T) $@ && \
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rm -f $<
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# Avoid the .h.d files for any .sym files whose .h files don't exist yet.
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# They will be generated when they're needed, and trying too early won't work.
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@ -1368,8 +1334,8 @@ endef
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# Also remove the dependencies and generated source files.
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common-clean: common-mostlyclean
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-rm -f $(addprefix $(objpfx),$(generated)) $(+depfiles)
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-rm -f $(objpfx)rtld-*.d
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-rm -f $(addprefix $(objpfx),$(generated))
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-rm -f $(objpfx)*.d $(objpfx)*.dt
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-rm -fr $(addprefix $(objpfx),$(generated-dirs))
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-rm -f $(addprefix $(common-objpfx),$(common-generated))
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-rm -f $(objpfx)distinfo
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