elf/Makefile

   1 # Makefile for elf subdirectory of GNU C Library.
   2
   3 # Copyright (C) 1995 Free Software Foundation, Inc.
   4 # This file is part of the GNU C Library.
   5
   6 # The GNU C Library is free software; you can redistribute it and/or
   7 # modify it under the terms of the GNU Library General Public License as
   8 # published by the Free Software Foundation; either version 2 of the
   9 # License, or (at your option) any later version.
  10
  11 # The GNU C Library is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 # Library General Public License for more details.
  15
  16 # You should have received a copy of the GNU Library General Public
  17 # License along with the GNU C Library; see the file COPYING.LIB.  If
  18 # not, write to the Free Software Foundation, Inc., 675 Mass Ave,
  19 # Cambridge, MA 02139, USA.
  20
  21 subdir          := elf
  22
  23 headers         := elf.h libelf.h link.h dlfcn.h
  24 routines        := init-first
  25
  26 extra-libs      = libelf libdl
  27 libelf-routines := elf_hash
  28 libdl-routines  := dlopen dlclose dlsym dlerror
  29 libdl-inhibit-o = $(filter-out .so,$(object-suffixes)) # Build only shared.
  30 LDFLAGS-dl.so   := -e 0 # work around ld bug
  31
  32 rtld-routines   := rtld $(addprefix dl-,load lookup object reloc        \
  33                                         runtime sysdep error init fini)
  34 distribute      = $(rtld-routines:=.c) dynamic-link.h do-rel.h
  35
  36 include ../Makeconfig
  37
  38 ifeq (yes,$(build-shared))
  39 extra-objs      = $(rtld-routines:=.so)
  40 install-lib     = ld.so
  41 endif
  42
  43 include ../Rules
  44
  45 $(objpfx)ld.so: $(rtld-routines:%=$(objpfx)%.so) \
  46                 $(patsubst %,$(common-objpfx)lib%_pic.a,\
  47                            elf c $(LDLIBS-c.so:-l%=%))
  48         $(LINK.o) -nostdlib -nostartfiles -shared -o $@ \
  49                   '-Wl,-(' $^ -lgcc '-Wl,-)'
  50
  51 $(objpfx)libdl.so: $(objpfx)libdl_pic.a $(common-objpfx)libc.so $(objpfx)ld.so
  52         $(patsubst %/,cd %;,$(objpfx)) \
  53         $(LINK.o) -shared -o $(@:$(objpfx)%=%) \
  54                   $(LDFLAGS.so) $(LDFLAGS-dl.so) \
  55                   -Wl,--whole-archive $(^:$(objpfx)%=%)