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