ldso/ldso/Makefile.in

   1 # Makefile for uClibc
   2 #
   3 # Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
   4 #
   5 # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
   6 #
   7
   8 CFLAGS-ldso := -DNOT_IN_libc -DIS_IN_rtld $(SSP_DISABLE_FLAGS) -D_GNU_SOURCE
   9
  10 # This stuff will not work with -fomit-frame-pointer
  11 CFLAGS-ldso += -fno-omit-frame-pointer
  12
  13 CFLAGS-ldso += -I$(top_builddir)ldso/include -I$(top_builddir)ldso/ldso
  14 CFLAGS-ldso += -DUCLIBC_RUNTIME_PREFIX=\"$(RUNTIME_PREFIX)\" -DUCLIBC_LDSO=\"$(UCLIBC_LDSO)\"
  15
  16 ifeq ($(SUPPORT_LD_DEBUG),y)
  17 CFLAGS-ldso += -D__SUPPORT_LD_DEBUG__
  18 endif
  19
  20 ifeq ($(SUPPORT_LD_DEBUG_EARLY),y)
  21 CFLAGS-ldso += -D__SUPPORT_LD_DEBUG_EARLY__
  22 endif
  23
  24 ifeq ($(DODEBUG),y)
  25 # Not really much point in including debugging info, since gdb
  26 # can't really debug ldso, since gdb requires help from ldso to
  27 # debug things....
  28 CFLAGS-ldso += -Os -g
  29 endif
  30
  31 CFLAGS-ldso/ldso/$(TARGET_ARCH)/ := $(CFLAGS-ldso)
  32
  33 ifneq ($(SUPPORT_LD_DEBUG),y)
  34 LDFLAGS-ld-uClibc.so := $(LDFLAGS)
  35 else
  36 LDFLAGS-ld-uClibc.so := $(LDFLAGS_NOSTRIP) -z defs
  37 endif
  38 LDFLAGS-ld-uClibc.so += -e _start -z now -Bsymbolic --export-dynamic --sort-common --discard-locals --discard-all --no-undefined
  39
  40 ldso_FULL_NAME := ld-uClibc-$(MAJOR_VERSION).$(MINOR_VERSION).$(SUBLEVEL).so
  41
  42 ld-uClibc_DIR := $(top_srcdir)ldso/ldso
  43 ld-uClibc_OUT := $(top_builddir)ldso/ldso
  44
  45 ld-uClibc_CSRC := $(ld-uClibc_DIR)/ldso.c
  46 ld-uClibc_COBJ := $(patsubst $(ld-uClibc_DIR)/%.c,$(ld-uClibc_OUT)/%.o,$(ld-uClibc_CSRC))
  47
  48 ld-uClibc_SSRC := $(wildcard $(ld-uClibc_DIR)/$(TARGET_ARCH)/*.S)
  49 ld-uClibc_SOBJ := $(patsubst $(ld-uClibc_DIR)/$(TARGET_ARCH)/%.S,$(ld-uClibc_OUT)/$(TARGET_ARCH)/%.o,$(ld-uClibc_SSRC))
  50
  51 ld-uClibc_OBJS := $(ld-uClibc_COBJ) $(ld-uClibc_SOBJ)
  52
  53 ld-uClibc-so-y := $(ld-uClibc_OBJS:.o=.os)
  54
  55 LN_HEADERS      := $(patsubst %, $(top_builddir)ldso/include/%, elf.h)
  56 LN_ARCH_HEADERS := $(patsubst %, $(top_builddir)ldso/include/%, dl-startup.h dl-syscalls.h dl-sysdep.h dl-debug.h)
  57 HEADERS         := $(LN_HEADERS) $(LN_ARCH_HEADERS) $(top_builddir)ldso/include/dl-progname.h
  58
  59 #lib-so-y := $(top_builddir)lib/$(patsubst %.$(MAJOR_VERSION),%,$(UCLIBC_LDSO))
  60 ld-uClibc-y := $(top_builddir)lib/$(patsubst %.$(MAJOR_VERSION),%,$(UCLIBC_LDSO))
  61 objclean-y += ld-uClibc_clean
  62 headers-$(HAVE_SHARED) += ldso_headers
  63 headers_clean-y += ldso_headers_clean
  64
  65 $(top_builddir)lib/$(patsubst %.$(MAJOR_VERSION),%,$(UCLIBC_LDSO)): $(ld-uClibc_OUT)/ld-uClibc_so.a $(top_builddir)include/headers_done
  66         $(call link.so,$(ldso_FULL_NAME),$(MAJOR_VERSION))
  67
  68 $(ld-uClibc_OUT)/ld-uClibc_so.a: $(ld-uClibc-so-y)
  69         $(Q)$(RM) $@
  70         $(do_strip)
  71         $(do_ar)
  72
  73 ldso_headers: $(HEADERS)
  74
  75 $(LN_HEADERS):
  76         $(LN) -sf ../../$(top_srcdir)include/$(notdir $@) $@
  77
  78 $(LN_ARCH_HEADERS):
  79         $(LN) -sf ../../$(top_srcdir)ldso/ldso/$(TARGET_ARCH)/$(notdir $@) $@
  80
  81 $(top_builddir)ldso/include/dl-progname.h:
  82         echo '#include "$(TARGET_ARCH)/elfinterp.c"' > $@
  83
  84 ldso_headers_clean:
  85         $(RM) $(HEADERS)
  86
  87 ld-uClibc_clean:
  88         $(RM) $(ld-uClibc_OUT)/*.{o,os,a} $(ld-uClibc_OUT)/*/*.{o,os}