Android.mk revision 2258347f3bb770641a7d8fe311911ace8f69cb20 
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 += \
22    -fno-stack-protector \
23    -Wstrict-overflow=5 \
24    -fvisibility=hidden \
25    -Wall -Wextra -Werror \
26
27LOCAL_CONLYFLAGS += \
28    -std=gnu99 \
29
30LOCAL_CPPFLAGS += \
31    -std=gnu++11 \
32
33# We need to access Bionic private headers in the linker.
34LOCAL_CFLAGS += -I$(LOCAL_PATH)/../libc/
35
36ifeq ($(TARGET_ARCH),arm)
37    LOCAL_CFLAGS += -DANDROID_ARM_LINKER
38endif
39
40ifeq ($(TARGET_ARCH),mips)
41    LOCAL_CFLAGS += -DANDROID_MIPS_LINKER
42endif
43
44ifeq ($(TARGET_ARCH),x86)
45    LOCAL_CFLAGS += -DANDROID_X86_LINKER
46endif
47
48ifeq ($(TARGET_ARCH),x86_64)
49    LOCAL_CFLAGS += -DANDROID_X86_64_LINKER
50endif
51
52ifeq ($(TARGET_ARCH),$(filter $(TARGET_ARCH),x86_64))
53    LOCAL_MODULE := linker64
54else
55    LOCAL_MODULE := linker
56endif
57
58LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
59
60LOCAL_STATIC_LIBRARIES := libc_nomalloc
61
62#LOCAL_FORCE_STATIC_EXECUTABLE := true # not necessary when not including BUILD_EXECUTABLE
63
64#
65# include $(BUILD_EXECUTABLE)
66#
67# Instead of including $(BUILD_EXECUTABLE), we execute the steps to create an executable by
68# hand, as we want to insert an extra step that is not supported by the build system, and
69# is probably specific the linker only, so there's no need to modify the build system for
70# the purpose.
71
72LOCAL_MODULE_CLASS := EXECUTABLES
73LOCAL_MODULE_SUFFIX := $(TARGET_EXECUTABLE_SUFFIX)
74
75# we don't want crtbegin.o (because we have begin.o), so unset it
76# just for this module
77LOCAL_NO_CRT := true
78
79# TODO: split out the asflags.
80LOCAL_ASFLAGS := $(LOCAL_CFLAGS)
81
82include $(BUILD_SYSTEM)/dynamic_binary.mk
83
84# See build/core/executable.mk
85$(linked_module): PRIVATE_TARGET_GLOBAL_LD_DIRS := $(TARGET_GLOBAL_LD_DIRS)
86$(linked_module): PRIVATE_TARGET_GLOBAL_LDFLAGS := $(TARGET_GLOBAL_LDFLAGS)
87$(linked_module): PRIVATE_TARGET_FDO_LIB := $(TARGET_FDO_LIB)
88$(linked_module): PRIVATE_TARGET_LIBGCC := $(TARGET_LIBGCC)
89$(linked_module): PRIVATE_TARGET_CRTBEGIN_DYNAMIC_O := $(TARGET_CRTBEGIN_DYNAMIC_O)
90$(linked_module): PRIVATE_TARGET_CRTBEGIN_STATIC_O := $(TARGET_CRTBEGIN_STATIC_O)
91$(linked_module): PRIVATE_TARGET_CRTEND_O := $(TARGET_CRTEND_O)
92$(linked_module): $(TARGET_CRTBEGIN_STATIC_O) $(all_objects) $(all_libraries) $(TARGET_CRTEND_O)
93	$(transform-o-to-static-executable)
94	@echo "target PrefixSymbols: $(PRIVATE_MODULE) ($@)"
95	$(hide) $(TARGET_OBJCOPY) --prefix-symbols=__dl_ $@
96
97#
98# end of BUILD_EXECUTABLE hack
99#
100