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),$(object-suffixes))
  13
  14 ifneq (,$($(lib)-static-only-routines))
  15 ifneq (,$(filter yesyes%,$(build-shared)$(elf)$($(lib).so-version)))
  16 object-suffixes-$(lib) += $(filter-out $($(lib)-inhibit-o),.oS)
  17 endif
  18 endif
  19
  20 ifneq (,$(object-suffixes-$(lib)))
  21
  22 # Make sure these are simply-expanded variables before we append to them,
  23 # since we want the expressions we append to be expanded right now.
  24 install-lib := $(install-lib)
  25 extra-objs := $(extra-objs)
  26
  27 # The modules that go in $(lib).
  28 all-$(lib)-routines := $($(lib)-routines) $($(lib)-sysdep_routines)
  29
  30 # Add each flavor of library to the lists of things to build and install.
  31 install-lib += $(foreach o,$(object-suffixes-$(lib)),$(lib:lib%=$(libtype$o)))
  32 extra-objs += $(foreach o,$(filter-out .os .oS,$(object-suffixes-$(lib))),\
  33                         $(patsubst %,%$o,$(filter-out \
  34                                            $($(lib)-shared-only-routines),\
  35                                            $(all-$(lib)-routines))))
  36 ifneq (,$(filter .os,$(object-suffixes-$(lib))))
  37 extra-objs += $(all-$(lib)-routines:%=%.os)
  38 endif
  39 alltypes-$(lib) := $(foreach o,$(object-suffixes-$(lib)),\
  40                              $(objpfx)$(patsubst %,$(libtype$o),\
  41                              $(lib:lib%=%)))
  42
  43 ifeq (,$(filter $(lib),$(extra-libs-others)))
  44 lib-noranlib: $(alltypes-$(lib))
  45 ifeq (yes,$(build-shared))
  46 lib-noranlib: $(objpfx)$(lib).so$($(lib).so-version)
  47 endif
  48 else
  49 others: $(alltypes-$(lib))
  50 endif
  51
  52 # The linked shared library is never a dependent of lib-noranlib,
  53 # because linking it will depend on libc.so already being built.
  54 ifneq (,$(filter .os,$(object-suffixes-$(lib))))
  55 others: $(objpfx)$(lib).so$($(lib).so-version)
  56 endif
  57
  58
  59 # Use o-iterator.mk to generate a rule for each flavor of library.
  60 ifneq (,$(filter-out .os .oS,$(object-suffixes-$(lib))))
  61 define o-iterator-doit
  62 $(objpfx)$(patsubst %,$(libtype$o),$(lib:lib%=%)): \
  63   $(patsubst %,$(objpfx)%$o,\
  64              $(filter-out $($(lib)-shared-only-routines),\
  65                           $(all-$(lib)-routines))); \
  66         $$(build-extra-lib)
  67 endef
  68 object-suffixes-left = $(filter-out .os .oS,$(object-suffixes-$(lib)))
  69 include $(patsubst %,$(..)o-iterator.mk,$(object-suffixes-left))
  70 endif
  71
  72 ifneq (,$(filter .os,$(object-suffixes-$(lib))))
  73 $(objpfx)$(patsubst %,$(libtype.os),$(lib:lib%=%)): \
  74   $(patsubst %,$(objpfx)%.os,\
  75              $(filter-out $($(lib)-static-only-routines),\
  76                           $(all-$(lib)-routines)))
  77         $(build-extra-lib)
  78 endif
  79
  80 ifneq (,$(filter .oS,$(object-suffixes-$(lib))))
  81 $(objpfx)$(patsubst %,$(libtype.oS),$(lib:lib%=%)): \
  82   $(patsubst %,$(objpfx)%.oS,\
  83              $(filter $($(lib)-static-only-routines),\
  84                       $(all-$(lib)-routines)))
  85         $(build-extra-lib)
  86 endif
  87
  88 ifeq ($(versioning),yes)
  89 # Add the version script to the dependencies of the shared library.
  90 $(objpfx)$(lib).so: $(firstword $($(lib)-map) \
  91                                 $(addprefix $(common-objpfx), \
  92                                             $(filter $(lib).map, \
  93                                                      $(version-maps))))
  94 endif
  95
  96 endif
  97
  98 # This will define `libof-ROUTINE := LIB' for each of the routines.
  99 cpp-srcs-left := $($(lib)-routines) $($(lib)-sysdep_routines)
 100 ifneq (,$(cpp-srcs-left))
 101 include $(patsubst %,$(..)cppflags-iterator.mk,$(cpp-srcs-left))
 102 endif
 103
 104 CPPFLAGS-$(lib) := -DNOT_IN_libc=1 -DIS_IN_$(lib)=1