extra-lib.mk

   1 # This file is included several times in a row, once
   2 # for each element of $(extra-libs).  $(extra-libs-left)
   3 # is initialized first to $(extra-libs) so that with each
   4 # inclusion, we advance $(lib) to the next library name (e.g. libfoo).
   5 # The variable $($(lib)-routines) defines the list of modules
   6 # to be included in that library.  A sysdep Makefile can add to
   7 # $(lib)-sysdep_routines to include additional modules.
   8
   9 lib := $(firstword $(extra-libs-left))
  10 extra-libs-left := $(filter-out $(lib),$(extra-libs-left))
  11
  12 object-suffixes-$(lib) := $(filter-out $($(lib)-inhibit-o),$(object-suffixes))
  13
  14 ifneq (,$(object-suffixes-$(lib)))
  15
  16 # Make sure these are simply-expanded variables before we append to them,
  17 # since we want the expressions we append to be expanded right now.
  18 install-lib := $(install-lib)
  19 extra-objs := $(extra-objs)
  20
  21 # The modules that go in $(lib).
  22 all-$(lib)-routines := $($(lib)-routines) $($(lib)-sysdep_routines)
  23
  24 # Add each flavor of library to the lists of things to build and install.
  25 install-lib += $(foreach o,$(object-suffixes-$(lib)),$(lib:lib%=$(libtype$o)))
  26 extra-objs += $(foreach o,$(object-suffixes-$(lib):.os=),\
  27                         $(patsubst %,%$o,$(filter-out \
  28                                            $($(lib)-shared-only-routines),\
  29                                            $(all-$(lib)-routines))))
  30 ifneq (,$(filter .os,$(object-suffixes-$(lib))))
  31 extra-objs += $(all-$(lib)-routines:%=%.os)
  32 endif
  33 alltypes-$(lib) := $(foreach o,$(object-suffixes-$(lib)),\
  34                              $(objpfx)$(patsubst %,$(libtype$o),\
  35                              $(lib:lib%=%)))
  36
  37 ifeq (,$(filter $(lib),$(extra-libs-others)))
  38 lib-noranlib: $(alltypes-$(lib))
  39 ifeq (yes,$(build-shared))
  40 lib-noranlib: $(objpfx)$(lib).so$($(lib).so-version)
  41 endif
  42 else
  43 others: $(alltypes-$(lib))
  44 endif
  45
  46 # The linked shared library is never a dependent of lib-noranlib,
  47 # because linking it will depend on libc.so already being built.
  48 ifneq (,$(filter .os,$(object-suffixes-$(lib))))
  49 others: $(objpfx)$(lib).so$($(lib).so-version)
  50 endif
  51
  52
  53 # Use o-iterator.mk to generate a rule for each flavor of library.
  54 ifneq (,$(filter-out .os,$(object-suffixes-$(lib))))
  55 define o-iterator-doit
  56 $(objpfx)$(patsubst %,$(libtype$o),$(lib:lib%=%)): \
  57   $(patsubst %,$(objpfx)%$o,\
  58              $(filter-out $($(lib)-shared-only-routines),\
  59                           $(all-$(lib)-routines))); \
  60         $$(build-extra-lib)
  61 endef
  62 object-suffixes-left = $(object-suffixes-$(lib):.os=)
  63 include $(patsubst %,$(..)o-iterator.mk,$(object-suffixes-$(lib):.os=))
  64 endif
  65
  66 ifneq (,$(filter .os,$(object-suffixes-$(lib))))
  67 $(objpfx)$(patsubst %,$(libtype.os),$(lib:lib%=%)): \
  68   $(all-$(lib)-routines:%=$(objpfx)%.os)
  69         $(build-extra-lib)
  70 endif
  71
  72 ifeq ($(versioning),yes)
  73 # Add the version script to the dependencies of the shared library.
  74 $(objpfx)$(lib).so: $(firstword $($(lib)-map) \
  75                                 $(addprefix $(common-objpfx), \
  76                                             $(filter $(lib).map, \
  77                                                      $(version-maps))))
  78 endif
  79
  80 endif
  81
  82 # This will define `libof-ROUTINE := LIB' for each of the routines.
  83 cpp-srcs-left := $($(lib)-routines) $($(lib)-sysdep_routines)
  84 ifneq (,$(cpp-srcs-left))
  85 include $(patsubst %,$(..)cppflags-iterator.mk,$(cpp-srcs-left))
  86 endif
  87
  88 CPPFLAGS-$(lib) := -DNOT_IN_libc=1 -DIS_IN_$(lib)=1