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- # Makefile for uClibc
- #
- # Copyright (C) 2000-2008 Erik Andersen <andersen@uclibc.org>
- #
- # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
- #
- subdirs += ldso/ldso/$(TARGET_ARCH)
- CFLAGS-ldso := -DNOT_IN_libc -DIS_IN_rtld $(SSP_DISABLE_FLAGS)
- # This stuff will not work with -fomit-frame-pointer
- CFLAGS-ldso += -fno-omit-frame-pointer
- CFLAGS-ldso += -I$(top_srcdir)ldso/ldso/$(TARGET_ARCH) -I$(top_srcdir)ldso/include -I$(top_srcdir)ldso/ldso
- CFLAGS-ldso += -DUCLIBC_RUNTIME_PREFIX=\"$(RUNTIME_PREFIX)\" -DUCLIBC_LDSO=\"$(UCLIBC_LDSO)\"
- ifeq ($(DODEBUG),y)
- # Not really much point in including debugging info, since gdb
- # can't really debug ldso, since gdb requires help from ldso to
- # debug things....
- # On arm, gcc-4.3.x onwards -Os emits calls to libgcc, which calls _div0,
- # which tries to call raise(). And raise comes from libc so a catch 22.
- # Using -O2 instead. We could have use -fno-early-inlining with -Os too.
- CFLAGS-ldso += -O2 -g
- endif
- CFLAGS-ldso/ldso/$(TARGET_ARCH)/ := $(CFLAGS-ldso)
- CFLAGS-ldso.c := -DLDSO_ELFINTERP=\"$(TARGET_ARCH)/elfinterp.c\" $(CFLAGS-ldso)
- ifneq ($(SUPPORT_LD_DEBUG),y)
- LDFLAGS-$(UCLIBC_LDSO_NAME).so := $(LDFLAGS)
- else
- LDFLAGS-$(UCLIBC_LDSO_NAME).so := $(LDFLAGS_NOSTRIP) -Wl,-z,defs
- endif
- LDFLAGS-$(UCLIBC_LDSO_NAME).so += -Wl,-e,_start -Wl,-z,now -Wl,-Bsymbolic -Wl,--export-dynamic $(LDFLAG_SORT_COMMON) -Wl,--discard-locals $(LDFLAG_DISCARD_ALL) -Wl,--no-undefined
- ldso_FULL_NAME := $(UCLIBC_LDSO_NAME)-$(VERSION).so
- $(UCLIBC_LDSO_NAME)_DIR := $(top_srcdir)ldso/ldso
- $(UCLIBC_LDSO_NAME)_OUT := $(top_builddir)ldso/ldso
- $(UCLIBC_LDSO_NAME)_CSRC := $($(UCLIBC_LDSO_NAME)_DIR)/ldso.c
- # prerequesites
- $($(UCLIBC_LDSO_NAME)_OUT)/ldso.o $($(UCLIBC_LDSO_NAME)_OUT)/ldso.oS: \
- $($(UCLIBC_LDSO_NAME)_DIR)/dl-debug.c \
- $($(UCLIBC_LDSO_NAME)_DIR)/dl-startup.c \
- $($(UCLIBC_LDSO_NAME)_DIR)/dl-array.c \
- $($(UCLIBC_LDSO_NAME)_DIR)/dl-hash.c \
- $($(UCLIBC_LDSO_NAME)_DIR)/dl-elf.c
- $(UCLIBC_LDSO_NAME)_COBJ := $(patsubst $($(UCLIBC_LDSO_NAME)_DIR)/%.c,$($(UCLIBC_LDSO_NAME)_OUT)/%.o,$($(UCLIBC_LDSO_NAME)_CSRC))
- $(UCLIBC_LDSO_NAME)_SSRC := $(wildcard $($(UCLIBC_LDSO_NAME)_DIR)/$(TARGET_ARCH)/*.S)
- $(UCLIBC_LDSO_NAME)_SOBJ := $(patsubst $($(UCLIBC_LDSO_NAME)_DIR)/$(TARGET_ARCH)/%.S,$($(UCLIBC_LDSO_NAME)_OUT)/$(TARGET_ARCH)/%.o,$($(UCLIBC_LDSO_NAME)_SSRC))
- $(UCLIBC_LDSO_NAME)_OBJS := $($(UCLIBC_LDSO_NAME)_COBJ) $($(UCLIBC_LDSO_NAME)_SOBJ)
- ldso-y := $($(UCLIBC_LDSO_NAME)_OBJS:.o=.oS)
- lib-so-y += $(ldso)
- objclean-y += CLEAN_ldso/ldso
- $(ldso): $(ldso:.$(MAJOR_VERSION)=)
- $(ldso:.$(MAJOR_VERSION)=): $($(UCLIBC_LDSO_NAME)_OUT)/$(UCLIBC_LDSO_NAME)_so.a
- $(call link.so,$(ldso_FULL_NAME),$(MAJOR_VERSION))
- $($(UCLIBC_LDSO_NAME)_OUT)/$(UCLIBC_LDSO_NAME)_so.a: $(ldso-y)
- $(Q)$(RM) $@
- $(do_ar)
- CLEAN_ldso/ldso:
- $(do_rm) $(addprefix $($(UCLIBC_LDSO_NAME)_OUT)/,$(foreach e, o os oS a,$(foreach d, *. */*.,$(d)$(e))))
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