libc/Makefile.in

   1 # Makefile for uClibc
   2 #
   3 # Copyright (C) 2000-2008 Erik Andersen <andersen@uclibc.org>
   4 #
   5 # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
   6 #
   7
   8 libc_DIR := $(top_srcdir)libc
   9 libc_OUT := $(top_builddir)libc
  10
  11 # Check if the target architecture has a version script for
  12 # libc, and if so, include it when linking.
  13 VERSION_SCRIPT := $(wildcard $(libc_DIR)/sysdeps/linux/$(TARGET_ARCH)/libc.map)
  14 ifneq ($(VERSION_SCRIPT),)
  15 VERSION_SCRIPT := -Wl,--version-script,$(VERSION_SCRIPT)
  16 endif
  17
  18 LDFLAGS-$(UCLIBC_FORMAT_DSBT_ELF)-libc.so := -Wl,--dsbt-index=2
  19 LDFLAGS-libc.so := $(LDFLAGS) $(VERSION_SCRIPT) -Wl,-init,$(SYMBOL_PREFIX)__uClibc_init
  20 ifeq ($(UCLIBC_HAS_STDIO_FUTEXES),y)
  21 CFLAGS += -D__USE_STDIO_FUTEXES__
  22 endif
  23 LIBS-libc.so := $(interp) $(ldso) $(top_builddir)lib/$(NONSHARED_LIBNAME)
  24
  25 # we have SHARED_LIBNAME=libc.so.$(ABI_VERSION) defined in Rules.mak
  26 libc_FULL_NAME := libuClibc-$(VERSION).so
  27
  28 # this comes first, so duplicate removal works correctly
  29 include $(libc_DIR)/sysdeps/Makefile.in
  30
  31 include $(libc_DIR)/misc/Makefile.in
  32 include $(libc_DIR)/pwd_grp/Makefile.in
  33 include $(libc_DIR)/stdio/Makefile.in
  34 include $(libc_DIR)/string/Makefile.in
  35 include $(libc_DIR)/termios/Makefile.in
  36 include $(libc_DIR)/inet/Makefile.in
  37 include $(libc_DIR)/signal/Makefile.in
  38 include $(libc_DIR)/stdlib/Makefile.in
  39 include $(libc_DIR)/unistd/Makefile.in
  40
  41 ifeq ($(DOPIC),y)
  42 libc-a-y = $(libc-y:.o=.os) $(libc-static-y:.o=.os)
  43 else
  44 libc-a-y = $(libc-y) $(libc-static-y)
  45 endif
  46
  47 ifeq ($(DOMULTI),n)
  48 libc-so-y = $(libc-y:.o=.os) $(libc-shared-y)
  49 else
  50 all_sources = $(libc-y:.o=.c)
  51 all_sources += $(libc-shared-y:.oS=.c)
  52 libc-multi-y = $(filter-out $(libc-nomulti-y:.o=.c),$(all_sources))
  53 endif
  54
  55 lib-a-y += $(top_builddir)lib/libc.a
  56 lib-gdb-y += $(top_builddir)lib/libc.gdb
  57 lib-so-y += $(libc.depend)
  58 objclean-y += CLEAN_libc
  59
  60 OUTPUT_FORMAT = $(CC) $(CFLAGS) -Wl,--verbose 2>&1 | $(SED) -n '/OUTPUT_FORMAT/,/)/p'
  61
  62 ifeq ($(DOMULTI),n)
  63 $(libc.depend): $(libc_OUT)/libc_so.a $(LIBS-libc.so)
  64         $(call link.so,$(libc_FULL_NAME),$(ABI_VERSION))
  65 else
  66 $(libc.depend): $(libc_OUT)/libc.oS $(libc-nomulti-y:.o=.oS) | $(LIBS-libc.so)
  67         $(call linkm.so,$(libc_FULL_NAME),$(ABI_VERSION))
  68 endif
  69         $(Q)$(RM) $@
  70         $(Q)cat $(top_srcdir)extra/scripts/format.lds > $@.tmp
  71         $(Q)$(OUTPUT_FORMAT) >> $@.tmp
  72 ifeq ($(COMPAT_ATEXIT),y)
  73         $(Q)echo "GROUP ( $(NONSHARED_LIBNAME) $(SHARED_LIBNAME) $(ASNEEDED) )" >> $@.tmp
  74 else
  75         $(Q)echo "GROUP ( $(SHARED_LIBNAME) $(NONSHARED_LIBNAME) $(ASNEEDED) )" >> $@.tmp
  76 endif
  77         $(Q)mv $@.tmp $@
  78
  79 $(libc_OUT)/libc_so.a: $(libc-so-y) | $(top_builddir)lib/libc.a $(top_builddir)lib/$(NONSHARED_LIBNAME)
  80         $(Q)$(RM) $@
  81 ifeq ($(DOPIC),y)
  82         $(Q)$(STRIPTOOL) $(STRIP_FLAGS) $(libc-shared-y)
  83 else
  84         $(do_strip)
  85 endif
  86         $(do_ar)
  87
  88 $(libc_OUT)/libc.oS: $(libc-multi-y) | $(top_builddir)lib/libc.a $(top_builddir)lib/$(NONSHARED_LIBNAME)
  89         $(Q)$(RM) $@
  90         $(compile-m)
  91
  92 $(top_builddir)lib/libc.a: $(libc-a-y) | $(crt-y)
  93         $(Q)$(INSTALL) -d $(dir $@)
  94         $(Q)$(RM) $@
  95         $(do_ar)
  96
  97 # We use libc_so.a so that we can compile the shared library with special
  98 # flags - i.e. -mleaf-id-shared-library.  The static libc.a needs to be
  99 # compiled without it.
 100 $(top_builddir)lib/libc.gdb: $(libc_OUT)/libc_so.a $(LINK_FLAT_CRTS)
 101         $(call link-flat.so,$(@:.gdb=),$(UCLIBC_SHARED_FLAT_ID))
 102
 103 CLEAN_libc:
 104         $(do_rm) $(addprefix $(libc_OUT)/*., o os oS a)