platform_bionic/linker/Android.mk
Dmitriy Ivanov 42d5fcb9f4 Introducing linker namespaces
Bug: http://b/22548808
Change-Id: Ia3af3c0a167f1d16447a3d83bb045d143319b1e1
2015-11-15 12:09:16 -08:00

105 lines
2.9 KiB
Makefile

LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_CLANG := true
LOCAL_SRC_FILES := \
debugger.cpp \
dlfcn.cpp \
linker.cpp \
linker_allocator.cpp \
linker_block_allocator.cpp \
linker_libc_support.c \
linker_mapped_file_fragment.cpp \
linker_memory.cpp \
linker_phdr.cpp \
linker_sdk_versions.cpp \
linker_utils.cpp \
rt.cpp \
LOCAL_SRC_FILES_arm := arch/arm/begin.S
LOCAL_SRC_FILES_arm64 := arch/arm64/begin.S
LOCAL_SRC_FILES_x86 := arch/x86/begin.c
LOCAL_SRC_FILES_x86_64 := arch/x86_64/begin.S
LOCAL_SRC_FILES_mips := arch/mips/begin.S linker_mips.cpp
LOCAL_SRC_FILES_mips64 := arch/mips64/begin.S linker_mips.cpp
# -shared is used to overwrite the -Bstatic and -static
# flags triggered by LOCAL_FORCE_STATIC_EXECUTABLE.
# This dynamic linker is actually a shared object linked with static libraries.
LOCAL_LDFLAGS := \
-shared \
-Wl,-Bsymbolic \
-Wl,--exclude-libs,ALL \
LOCAL_CFLAGS += \
-fno-stack-protector \
-Wstrict-overflow=5 \
-fvisibility=hidden \
-Wall -Wextra -Wunused -Werror \
LOCAL_CFLAGS_arm += -D__work_around_b_24465209__
LOCAL_CFLAGS_x86 += -D__work_around_b_24465209__
LOCAL_CONLYFLAGS += \
-std=gnu99 \
LOCAL_CPPFLAGS += \
-Wold-style-cast \
ifeq ($(TARGET_IS_64_BIT),true)
LOCAL_CPPFLAGS += -DTARGET_IS_64_BIT
endif
# We need to access Bionic private headers in the linker.
LOCAL_CFLAGS += -I$(LOCAL_PATH)/../libc/
# we don't want crtbegin.o (because we have begin.o), so unset it
# just for this module
LOCAL_NO_CRT := true
# TODO: split out the asflags.
LOCAL_ASFLAGS := $(LOCAL_CFLAGS)
LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
LOCAL_STATIC_LIBRARIES := libc_nomalloc libziparchive libutils libbase libz liblog
LOCAL_FORCE_STATIC_EXECUTABLE := true
LOCAL_MODULE := linker
LOCAL_MODULE_STEM_32 := linker
LOCAL_MODULE_STEM_64 := linker64
LOCAL_MULTILIB := both
# Leave the symbols in the shared library so that stack unwinders can produce
# meaningful name resolution.
LOCAL_STRIP_MODULE := keep_symbols
# Insert an extra objcopy step to add prefix to symbols. This is needed to prevent gdb
# looking up symbols in the linker by mistake.
#
# Note we are using "=" instead of ":=" to defer the evaluation,
# because LOCAL_2ND_ARCH_VAR_PREFIX or linked_module isn't set properly yet at this point.
LOCAL_POST_LINK_CMD = $(hide) $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_OBJCOPY) \
--prefix-symbols=__dl_ $(linked_module)
include $(BUILD_EXECUTABLE)
define add-linker-symlink
$(eval _from := $(TARGET_OUT)/bin/$(1))
$(eval _to:=$(2))
$(_from): $(LOCAL_MODULE_MAKEFILE)
@echo "Symlink: $$@ -> $(_to)"
@mkdir -p $$(dir $$@)
@rm -rf $$@
$(hide) ln -sf $(_to) $$@
endef
$(eval $(call add-linker-symlink,linker_asan,linker))
ifeq ($(TARGET_IS_64_BIT),true)
$(eval $(call add-linker-symlink,linker_asan64,linker64))
endif
include $(call first-makefiles-under,$(LOCAL_PATH))