diff options
Diffstat (limited to 'Makerules')
| -rw-r--r-- | Makerules | 113 |
1 files changed, 41 insertions, 72 deletions
@@ -72,15 +72,6 @@ endif # `+includes' in Makeconfig references $(+sysdep-includes). +sysdep-includes := $(addprefix -I,$(+sysdep_dirs)) -# The name of the symbol table archive member. The default is suitable for -# BSD style archives. It can be overridden in sysdep Makefiles when SYSV -# style archive are used. -ifeq (no,$(elf)) -ar-symtab-name = __.SYMDEF -else -ar-symtab-name = # The null name is used in ELF archives. -endif - # This variable is used in ``include $(o-iterator)'' after defining # $(o-iterator-doit) to produce some desired rule using $o for the object # suffix, and setting $(object-suffixes-left) to $(object-suffixes); a copy @@ -382,20 +373,14 @@ elide-routines.oS = $(filter-out $(static-only-routines),\ $(routines) $(aux) $(sysdep_routines)) ifdef static-only-routines -# These routines are to be omitted from the shared library object, -# so we replace the PIC objects for them with the empty object file. -$(static-only-routines:%=$(objpfx)%.os): %.os: $(common-objpfx)empty.os - rm -f $@ - ln $< $@ +elide-routines.os += $(static-only-routines) endif ifdef shared-only-routines # If we have versioned code we don't need the old versions in any of the # static libraries. define o-iterator-doit -$(shared-only-routines:%=$(objpfx)%$o): %$o: $(common-objpfx)empty$o; - rm -f $$@ - ln $$< $$@ +elide-routines.$o := $(shared-only-routines) endef object-suffixes-left := $(filter-out .os,$(object-suffixes)) include $(o-iterator) @@ -510,29 +495,18 @@ verbose := endif # not -s ARFLAGS := r$(verbose) -ifeq ($(have-ar-S),yes) -CREATE_ARFLAGS := Scru$(verbose) -else CREATE_ARFLAGS := cru$(verbose) -endif # This makes all the object files in the parent library archive. -.PHONY: lib libobjs lib-noranlib +.PHONY: lib lib-noranlib lib: lib-noranlib $(foreach l,$(libtypes),$(patsubst %,$(common-objpfx)$l,c)) -# Pattern rule for libraries: depend on the __.SYMDEF member updated by ranlib. -lib%.a: lib%.a($(ar-symtab-name)) ; - # For object-suffix $o, the list of objects with that suffix. # Makefiles can define `elide-routines.so = foo' to leave foo.so out. o-objects = $(patsubst %.o,%$o,$(filter-out $(patsubst %,$(objpfx)%.o,\ $(elide-routines$o)),\ $(objects))) - -libobjs: $(foreach o,$(object-suffixes-for-libc),\ - $(common-objpfx)$(patsubst %,$(libtype$o),c)(\ - $(notdir $(o-objects)))) lib-noranlib: libobjs others: $(addprefix $(objpfx),$(install-lib)) @@ -545,26 +519,17 @@ $(foreach o,$(object-suffixes-for-libc),$(objpfx)stamp$o): rm -f $@; > $@ else -# Define a pattern rule that will match many targets libc.a(foo.%), for -# each foo.o in $(objects) (% will just happen always to match `o'). This is -# the only way to define a rule that updates many targets at once with one -# sequence of commands. -define o-iterator-doit -$(common-objpfx)$(patsubst %,$(libtype$o),c)(\ -$(addsuffix .%,$(filter-out $(elide-routines$o),$(notdir $(objects:.o=))))): \ - $(objpfx)stamp.% ; -endef -object-suffixes-left := $(object-suffixes-for-libc) -include $(o-iterator) - -# The pattern rule tells Make to remake $(objpfx)stamp.% as -# the way to update all the foo.% object files in $(objects). Now we -# define explicit rules to update each $(objpfx)stamp.SUFFIX +# Define explicit rules to update each $(objpfx)stamp.SUFFIX # timestamp file; these rules (one explicit rule is generated for each -# object suffix) will update the parent archive with ar. Use a static -# pattern rule so $* is set to the object type during the commands. +# object suffix) write a list of objects to update in the stamp file. +# The parent will then actually add them all to the archive in the +# archive rule, below. define o-iterator-doit -$(objpfx)stamp$o: $(objpfx)stamp%: $(o-objects); $$(do-ar) +$(objpfx)stamp$o: $(o-objects); $$(do-stamp) +endef +define do-stamp + echo '$(patsubst $(common-objpfx)%,%,$^)' > $@T + mv -f $@T $@ endef ifdef static-only-routines object-suffixes-left := $(object-suffixes-for-libc) @@ -572,15 +537,6 @@ else object-suffixes-left := $(object-suffixes) endif include $(o-iterator) -define do-ar -topdir=`cd $(..). && pwd`; \ -$(patsubst %/,cd % &&,$(objpfx)) \ -$(SHELL) $$topdir/autolock.sh ${O%-lib}.lck $(AR) $(CREATE_ARFLAGS) ${O%-lib} \ - $(patsubst $(objpfx)%,%,$?) -rm -f $@ -touch $@ -endef -O%-lib = $(..)$(patsubst %,$(libtype$*),c) ifndef static-only-routines subdir_lib: $(objpfx)stamp.oS @@ -591,29 +547,42 @@ endif endif -# Rules to update the $(ar-symtab-name) member with ranlib, -# one for each object flavor. +# Now define explicit rules to build the library archives; these depend +# on the stamp files built above. The rule always destroys and recreates +# the library from scratch; it's faster (!) that way. define o-iterator-doit -$(common-objpfx)$(patsubst %,$(libtype$o),c)($(ar-symtab-name)): \ - $(common-objpfx)$(patsubst %,$(libtype$o),c)(\ - $(patsubst $(objpfx)%,%,$(o-objects))) $(subdirs-stamp-o); \ - $(SHELL) $$(..)./autolock.sh \ - $$(common-objpfx)$$(patsubst %,$$(libtype$o),c).lck \ - $$(RANLIB) $$(common-objpfx)$$(patsubst %,$$(libtype$o),c) +$(common-objpfx)$(patsubst %,$(libtype$o),c): \ + $(subdirs-stamp-o) $(common-objpfx)stamp$o; $$(do-makelib) +endef +define do-makelib + (set -e; cd $(common-objdir); \ + $(AR) $(CREATE_ARFLAGS) $(@F)T \ + `cat $(patsubst $(common-objpfx)%,%,$^)`; \ + $(RANLIB) $(@F)T; \ + mv -f $(@F)T $(@F)) endef ifndef subdir subdirs-stamps := $(foreach d,$(subdirs),$(common-objpfx)$d/stamp%) subdirs-stamp-o = $(subst %,$o,$(subdirs-stamps)) $(subdirs-stamps): subdir_lib; endif +# The elf directory needs to know subdirs-stamp-o; otherwise libc_pic.a +# is mangled. FIXME: It would be cleaner to move the final construction +# of ld.so to top level. +ifeq ($(subdir),elf) +subdirs-stamps := $(foreach d,$(subdirs),$(common-objpfx)$d/stamp%) +subdirs-stamp-o = $(subst %,$o,$(subdirs-stamps)) +endif + object-suffixes-left = $(object-suffixes-for-libc) include $(o-iterator) # This makes all the object files. -.PHONY: objects objs -objects objs: $(foreach o,$(object-suffixes-for-libc),$(o-objects)) \ - $(addprefix $(objpfx),$(extra-objs)) +.PHONY: objects objs libobjs extra-objs +objects objs: libobjs extra-objs +libobjs: $(foreach o,$(object-suffixes-for-libc),$(objpfx)stamp$o) +extra-objs: $(addprefix $(objpfx),$(extra-objs)) # Canned sequence for building an extra library archive. define build-extra-lib @@ -945,7 +914,7 @@ mostlyclean: common-mostlyclean # Remove the object files. common-mostlyclean: -rm -f $(addprefix $(objpfx),$(tests) $(test-srcs) $(others) \ - $(tests-static) \ + $(tests-static) stubs \ $(addsuffix .o,$(tests) $(test-srcs) \ $(tests-static) \ $(others)) \ @@ -954,7 +923,7 @@ common-mostlyclean: -rm -f $(addprefix $(objpfx),$(extra-objs) $(install-lib) \ $(install-lib.so) \ $(install-lib.so:%.so=%_pic.a)) - -rm -f core $(common-objpfx)stub-$(subdir) + -rm -f core $(rmobjs) define rmobjs $(foreach o,$(object-suffixes-for-libc), @@ -968,15 +937,15 @@ common-clean: common-mostlyclean -rm -f $(addprefix $(common-objpfx),$(common-generated)) -rm -f $(objpfx)distinfo -# Produce a file `stub-$(subdir)' which contains `#define __stub_FUNCTION' +# Produce a file `stubs' which contains `#define __stub_FUNCTION' # for each function which is a stub. We grovel over all the .d files # looking for references to <stub-tag.h>. Then we grovel over each # referenced source file to see what stub function it defines. .PHONY: stubs # The parent Makefile calls this target. -stubs: $(common-objpfx)stub-$(subdir) +stubs: $(objpfx)stubs s = $(sysdep_dir)/generic -$(common-objpfx)stub-$(subdir): $(+depfiles) +$(objpfx)stubs: $(+depfiles) # Use /dev/null since `...` might expand to empty. (s=`cd $s && /bin/pwd`; \ $(patsubst %/,cd % &&,$(objpfx)) \ |