98 lines
2.9 KiB
Makefile
98 lines
2.9 KiB
Makefile
LOCAL_PATH:= $(call my-dir)
|
|
include $(CLEAR_VARS)
|
|
|
|
LOCAL_SRC_FILES:= \
|
|
arch/$(TARGET_ARCH)/begin.S \
|
|
linker.c \
|
|
linker_environ.c \
|
|
linker_format.c \
|
|
rt.c \
|
|
dlfcn.c \
|
|
debugger.c \
|
|
ba.c
|
|
|
|
ifeq ($(TARGET_ARCH),sh)
|
|
# SH-4A series virtual address range from 0x00000000 to 0x7FFFFFFF.
|
|
LINKER_TEXT_BASE := 0x70000100
|
|
else
|
|
# This is aligned to 4K page boundary so that both GNU ld and gold work. Gold
|
|
# actually produces a correct binary with starting address 0xB0000100 but the
|
|
# extra objcopy step to rename symbols causes the resulting binary to be misaligned
|
|
# and unloadable. Increasing the alignment adds an extra 3840 bytes in padding
|
|
# but switching to gold saves about 1M of space.
|
|
LINKER_TEXT_BASE := 0xB0001000
|
|
endif
|
|
|
|
# The maximum size set aside for the linker, from
|
|
# LINKER_TEXT_BASE rounded down to a megabyte.
|
|
LINKER_AREA_SIZE := 0x01000000
|
|
|
|
LOCAL_LDFLAGS := -Wl,-Ttext,$(LINKER_TEXT_BASE)
|
|
|
|
LOCAL_CFLAGS += -DPRELINK
|
|
LOCAL_CFLAGS += -DLINKER_TEXT_BASE=$(LINKER_TEXT_BASE)
|
|
LOCAL_CFLAGS += -DLINKER_AREA_SIZE=$(LINKER_AREA_SIZE)
|
|
|
|
# Set LINKER_DEBUG to either 1 or 0
|
|
#
|
|
LOCAL_CFLAGS += -DLINKER_DEBUG=0
|
|
|
|
# we need to access the Bionic private header <bionic_tls.h>
|
|
# in the linker; duplicate the HAVE_ARM_TLS_REGISTER definition
|
|
# from the libc build
|
|
ifeq ($(TARGET_ARCH)-$(ARCH_ARM_HAVE_TLS_REGISTER),arm-true)
|
|
LOCAL_CFLAGS += -DHAVE_ARM_TLS_REGISTER
|
|
endif
|
|
LOCAL_CFLAGS += -I$(LOCAL_PATH)/../libc/private
|
|
|
|
ifeq ($(TARGET_ARCH),arm)
|
|
LOCAL_CFLAGS += -DANDROID_ARM_LINKER
|
|
else
|
|
ifeq ($(TARGET_ARCH),x86)
|
|
LOCAL_CFLAGS += -DANDROID_X86_LINKER
|
|
else
|
|
ifeq ($(TARGET_ARCH),sh)
|
|
LOCAL_CFLAGS += -DANDROID_SH_LINKER
|
|
else
|
|
$(error Unsupported TARGET_ARCH $(TARGET_ARCH))
|
|
endif
|
|
endif
|
|
endif
|
|
|
|
LOCAL_MODULE:= linker
|
|
|
|
LOCAL_STATIC_LIBRARIES := libc_nomalloc
|
|
|
|
#LOCAL_FORCE_STATIC_EXECUTABLE := true # not necessary when not including BUILD_EXECUTABLE
|
|
|
|
#
|
|
# include $(BUILD_EXECUTABLE)
|
|
#
|
|
# Instead of including $(BUILD_EXECUTABLE), we execute the steps to create an executable by
|
|
# hand, as we want to insert an extra step that is not supported by the build system, and
|
|
# is probably specific the linker only, so there's no need to modify the build system for
|
|
# the purpose.
|
|
|
|
LOCAL_MODULE_CLASS := EXECUTABLES
|
|
LOCAL_MODULE_SUFFIX := $(TARGET_EXECUTABLE_SUFFIX)
|
|
|
|
|
|
include $(BUILD_SYSTEM)/dynamic_binary.mk
|
|
|
|
$(linked_module): $(TARGET_CRTBEGIN_STATIC_O) $(all_objects) $(all_libraries) $(TARGET_CRTEND_O)
|
|
$(transform-o-to-static-executable)
|
|
@echo "target PrefixSymbols: $(PRIVATE_MODULE) ($@)"
|
|
$(hide) $(TARGET_OBJCOPY) --prefix-symbols=__dl_ $@
|
|
|
|
#
|
|
# end of BUILD_EXECUTABLE hack
|
|
#
|
|
|
|
# we don't want crtbegin.o (because we have begin.o), so unset it
|
|
# just for this module
|
|
$(LOCAL_BUILT_MODULE): TARGET_CRTBEGIN_STATIC_O :=
|
|
# This line is not strictly necessary because the dynamic linker is built
|
|
# as a static executable, but it won't hurt if in the future we start
|
|
# building the linker as a dynamic one.
|
|
$(LOCAL_BUILT_MODULE): TARGET_CRTBEGIN_DYNAMIC_O :=
|