Android.mk revision d7398f146dad064dece704db9e13912f65da0acc 
1LOCAL_PATH:= $(call my-dir)
2include $(CLEAR_VARS)
3
4ifeq ($(TARGET_ARCH),x86)
5    linker_begin_extension := c
6else
7    linker_begin_extension := S
8endif
9
10LOCAL_SRC_FILES:= \
11    arch/$(TARGET_ARCH)/begin.$(linker_begin_extension) \
12    debugger.cpp \
13    dlfcn.cpp \
14    linker.cpp \
15    linker_environ.cpp \
16    linker_phdr.cpp \
17    rt.cpp \
18
19LOCAL_LDFLAGS := -shared -Wl,--exclude-libs,ALL
20
21LOCAL_CFLAGS += -fno-stack-protector \
22        -Wstrict-overflow=5 \
23        -fvisibility=hidden \
24        -Wall -Wextra -Werror \
25
26# We need to access Bionic private headers in the linker.
27LOCAL_CFLAGS += -I$(LOCAL_PATH)/../libc/
28
29ifeq ($(TARGET_ARCH),arm)
30    LOCAL_CFLAGS += -DANDROID_ARM_LINKER
31endif
32
33ifeq ($(TARGET_ARCH),mips)
34    LOCAL_CFLAGS += -DANDROID_MIPS_LINKER
35endif
36
37ifeq ($(TARGET_ARCH),x86)
38    LOCAL_CFLAGS += -DANDROID_X86_LINKER
39endif
40
41ifeq ($(TARGET_ARCH),x86_64)
42    LOCAL_CFLAGS += -DANDROID_X86_64_LINKER
43endif
44
45ifeq ($(TARGET_ARCH),$(filter $(TARGET_ARCH),x86_64))
46    LOCAL_MODULE := linker64
47else
48    LOCAL_MODULE := linker
49endif
50
51LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
52
53LOCAL_STATIC_LIBRARIES := libc_nomalloc
54
55#LOCAL_FORCE_STATIC_EXECUTABLE := true # not necessary when not including BUILD_EXECUTABLE
56
57#
58# include $(BUILD_EXECUTABLE)
59#
60# Instead of including $(BUILD_EXECUTABLE), we execute the steps to create an executable by
61# hand, as we want to insert an extra step that is not supported by the build system, and
62# is probably specific the linker only, so there's no need to modify the build system for
63# the purpose.
64
65LOCAL_MODULE_CLASS := EXECUTABLES
66LOCAL_MODULE_SUFFIX := $(TARGET_EXECUTABLE_SUFFIX)
67
68# we don't want crtbegin.o (because we have begin.o), so unset it
69# just for this module
70LOCAL_NO_CRT := true
71
72# TODO: split out the asflags.
73LOCAL_ASFLAGS := $(LOCAL_CFLAGS)
74
75include $(BUILD_SYSTEM)/dynamic_binary.mk
76
77# See build/core/executable.mk
78$(linked_module): PRIVATE_TARGET_GLOBAL_LD_DIRS := $(TARGET_GLOBAL_LD_DIRS)
79$(linked_module): PRIVATE_TARGET_GLOBAL_LDFLAGS := $(TARGET_GLOBAL_LDFLAGS)
80$(linked_module): PRIVATE_TARGET_FDO_LIB := $(TARGET_FDO_LIB)
81$(linked_module): PRIVATE_TARGET_LIBGCC := $(TARGET_LIBGCC)
82$(linked_module): PRIVATE_TARGET_CRTBEGIN_DYNAMIC_O := $(TARGET_CRTBEGIN_DYNAMIC_O)
83$(linked_module): PRIVATE_TARGET_CRTBEGIN_STATIC_O := $(TARGET_CRTBEGIN_STATIC_O)
84$(linked_module): PRIVATE_TARGET_CRTEND_O := $(TARGET_CRTEND_O)
85$(linked_module): $(TARGET_CRTBEGIN_STATIC_O) $(all_objects) $(all_libraries) $(TARGET_CRTEND_O)
86	$(transform-o-to-static-executable)
87	@echo "target PrefixSymbols: $(PRIVATE_MODULE) ($@)"
88	$(hide) $(TARGET_OBJCOPY) --prefix-symbols=__dl_ $@
89
90#
91# end of BUILD_EXECUTABLE hack
92#
93