Android.mk revision c97c5fc7880267fd835d22946a920bf370461cf2 
1LOCAL_PATH:= $(call my-dir)
2include $(CLEAR_VARS)
3
4LOCAL_SRC_FILES:= \
5	arch/$(TARGET_ARCH)/begin.S \
6	debugger.c \
7	dlfcn.c \
8	linker.cpp \
9	linker_environ.c \
10	linker_format.c \
11	linker_phdr.c \
12	rt.c
13
14LOCAL_LDFLAGS := -shared
15
16LOCAL_CFLAGS += -fno-stack-protector \
17        -Wstrict-overflow=5 \
18        -fvisibility=hidden \
19        -std=gnu99 \
20        -Wall -Wextra
21
22# Set LINKER_DEBUG to either 1 or 0
23#
24LOCAL_CFLAGS += -DLINKER_DEBUG=0
25
26# We need to access Bionic private headers in the linker...
27LOCAL_CFLAGS += -I$(LOCAL_PATH)/../libc/
28
29# ...one of which is <private/bionic_tls.h>, for which we
30# need HAVE_ARM_TLS_REGISTER.
31ifeq ($(TARGET_ARCH)-$(ARCH_ARM_HAVE_TLS_REGISTER),arm-true)
32    LOCAL_CFLAGS += -DHAVE_ARM_TLS_REGISTER
33endif
34
35ifeq ($(TARGET_ARCH),arm)
36    LOCAL_CFLAGS += -DANDROID_ARM_LINKER
37endif
38
39ifeq ($(TARGET_ARCH),x86)
40    LOCAL_CFLAGS += -DANDROID_X86_LINKER
41endif
42
43ifeq ($(TARGET_ARCH),mips)
44    LOCAL_CFLAGS += -DANDROID_MIPS_LINKER
45endif
46
47LOCAL_MODULE:= linker
48
49LOCAL_STATIC_LIBRARIES := libc_nomalloc
50
51#LOCAL_FORCE_STATIC_EXECUTABLE := true # not necessary when not including BUILD_EXECUTABLE
52
53#
54# include $(BUILD_EXECUTABLE)
55#
56# Instead of including $(BUILD_EXECUTABLE), we execute the steps to create an executable by
57# hand, as we want to insert an extra step that is not supported by the build system, and
58# is probably specific the linker only, so there's no need to modify the build system for
59# the purpose.
60
61LOCAL_MODULE_CLASS := EXECUTABLES
62LOCAL_MODULE_SUFFIX := $(TARGET_EXECUTABLE_SUFFIX)
63
64# we don't want crtbegin.o (because we have begin.o), so unset it
65# just for this module
66LOCAL_NO_CRT := true
67
68# TODO: split out the asflags.
69LOCAL_ASFLAGS := $(LOCAL_CFLAGS)
70
71include $(BUILD_SYSTEM)/dynamic_binary.mk
72
73$(linked_module): $(TARGET_CRTBEGIN_STATIC_O) $(all_objects) $(all_libraries) $(TARGET_CRTEND_O)
74	$(transform-o-to-static-executable)
75	@echo "target PrefixSymbols: $(PRIVATE_MODULE) ($@)"
76	$(hide) $(TARGET_OBJCOPY) --prefix-symbols=__dl_ $@
77
78#
79# end of BUILD_EXECUTABLE hack
80#
81