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review.blissroms.org / platform_bionic / f9fb52ab309c97d5b2ef4f8e1daff3eed4cf4024 / . / libc / crt.mk
blob: 410f229dbd42d53313f7e7546ab4b64775a5eefc [file] [log] [blame]
Ying Wangf25d6772014-01-23 15:17:50 -0800[diff] [blame]1# Define the libc run-time (crt) support object files that must be built,
2# which are needed to build all other objects (shared/static libs and
3# executables)
4# ==========================================================================
5# AArch64, ARM, MIPS, and x86 all need crtbegin_so/crtend_so.
6#
7# For x86, the .init section must point to a function that calls all
8# entries in the .ctors section. (on ARM this is done through the
9# .init_array section instead).
10#
11# For all the platforms, the .fini_array section must point to a function
12# that will call __cxa_finalize(&__dso_handle) in order to ensure that
13# static C++ destructors are properly called on dlclose().
14#
15# Args:
16# my_2nd_arch_prefix: set to $(TARGET_2ND_ARCH_VAR_PREFIX) if it's
17# for the 2nd arch; otherwise empty.
18
19my_arch := $(TARGET_$(my_2nd_arch_prefix)ARCH)
20
21my_libc_crt_target_crtbegin_file := $(libc_crt_target_crtbegin_file_$(my_arch))
22my_libc_crt_target_crtbegin_so_file := $(libc_crt_target_crtbegin_so_file_$(my_arch))
23
24my_libc_crt_target_cflags := \
25 $(libc_crt_target_cflags) \
26 $(libc_crt_target_cflags_$(my_arch))
27
28my_libc_crt_target_so_cflags := \
29 $(libc_crt_target_so_cflags_$(my_arch)) \
30 $(my_libc_crt_target_cflags)
31
32my_libc_crt_target_ldflags := $(libc_crt_target_ldflags_$(my_arch))
33
34
Ying Wangf25d6772014-01-23 15:17:50 -0800[diff] [blame]35GEN := $($(my_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbrand.o
36$(GEN): PRIVATE_CC := $($(my_2nd_arch_prefix)TARGET_CC)
37$(GEN): PRIVATE_CFLAGS := $(my_libc_crt_target_so_cflags)
Colin Cross24958ae2015-02-11 17:40:45 -0800[diff] [blame]38$(GEN): $(LOCAL_PATH)/bionic/crtbrand.c
39 $(hide) $(PRIVATE_CC) $(PRIVATE_CFLAGS) \
40 -MD -MF $(@:%.o=%.d) -o $@ -c $<
41 $(transform-d-to-p)
42-include $(GEN:%.o=%.P)
Ying Wangf25d6772014-01-23 15:17:50 -0800[diff] [blame]43
44
45GEN := $($(my_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_so.o
46$(GEN): PRIVATE_CC := $($(my_2nd_arch_prefix)TARGET_CC)
47$(GEN): PRIVATE_CFLAGS := $(my_libc_crt_target_so_cflags)
48$(GEN): $(my_libc_crt_target_crtbegin_so_file)
49 @mkdir -p $(dir $@)
50 $(hide) $(PRIVATE_CC) $(PRIVATE_CFLAGS) \
51 -MD -MF $(@:%.o=%.d) -o $@ -c $<
52 $(transform-d-to-p)
53-include $(GEN:%.o=%.P)
54
55
56GEN := $($(my_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_so.o
57$(GEN): PRIVATE_CC := $($(my_2nd_arch_prefix)TARGET_CC)
58$(GEN): PRIVATE_CFLAGS := $(my_libc_crt_target_so_cflags)
59$(GEN): $(LOCAL_PATH)/arch-common/bionic/crtend_so.S
60 @mkdir -p $(dir $@)
61 $(hide) $(PRIVATE_CC) $(PRIVATE_CFLAGS) \
62 -MD -MF $(@:%.o=%.d) -o $@ -c $<
63 $(transform-d-to-p)
64-include $(GEN:%.o=%.P)
65
66
67# The following two are installed to device
68GEN := $($(my_2nd_arch_prefix)TARGET_OUT_SHARED_LIBRARIES)/crtbegin_so.o
69$(GEN): $($(my_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_so.o
70 $(hide) mkdir -p $(dir $@) && cp -f $< $@
71ALL_GENERATED_SOURCES += $(GEN)
72
73GEN := $($(my_2nd_arch_prefix)TARGET_OUT_SHARED_LIBRARIES)/crtend_so.o
74$(GEN): $($(my_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_so.o
75 $(hide) mkdir -p $(dir $@) && cp -f $< $@
76ALL_GENERATED_SOURCES += $(GEN)
77
78
79GEN := $($(my_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static1.o
80$(GEN): PRIVATE_CC := $($(my_2nd_arch_prefix)TARGET_CC)
81$(GEN): PRIVATE_CFLAGS := $(my_libc_crt_target_cflags)
82$(GEN): $(my_libc_crt_target_crtbegin_file)
83 @mkdir -p $(dir $@)
84 $(hide) $(PRIVATE_CC) $(PRIVATE_CFLAGS) \
85 -MD -MF $(@:%.o=%.d) -o $@ -c $<
86 $(transform-d-to-p)
87-include $(GEN:%.o=%.P)
88
89
90GEN := $($(my_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static.o
91$(GEN): PRIVATE_LD := $($(my_2nd_arch_prefix)TARGET_LD)
92$(GEN): PRIVATE_LDFLAGS := $(my_libc_crt_target_ldflags)
93$(GEN): $($(my_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static1.o \
94 $($(my_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbrand.o
95 @mkdir -p $(dir $@)
96 $(hide) $(PRIVATE_LD) $(PRIVATE_LDFLAGS) -r -o $@ $^
97
98
99GEN := $($(my_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic1.o
100$(GEN): PRIVATE_CC := $($(my_2nd_arch_prefix)TARGET_CC)
101$(GEN): PRIVATE_CFLAGS := $(my_libc_crt_target_cflags)
102$(GEN): $(my_libc_crt_target_crtbegin_file)
103 @mkdir -p $(dir $@)
104 $(hide) $(PRIVATE_CC) $(PRIVATE_CFLAGS) \
105 -MD -MF $(@:%.o=%.d) -o $@ -c $<
106 $(transform-d-to-p)
107-include $(GEN:%.o=%.P)
108
109
110GEN := $($(my_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic.o
111$(GEN): PRIVATE_LD := $($(my_2nd_arch_prefix)TARGET_LD)
112$(GEN): PRIVATE_LDFLAGS := $(my_libc_crt_target_ldflags)
113$(GEN): $($(my_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic1.o \
114 $($(my_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbrand.o
115 @mkdir -p $(dir $@)
116 $(hide) $(PRIVATE_LD) $(PRIVATE_LDFLAGS) -r -o $@ $^
117
118
119# We rename crtend.o to crtend_android.o to avoid a
120# name clash between gcc and bionic.
121GEN := $($(my_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_android.o
122$(GEN): PRIVATE_CC := $($(my_2nd_arch_prefix)TARGET_CC)
123$(GEN): PRIVATE_CFLAGS := $(my_libc_crt_target_cflags)
124$(GEN): $(LOCAL_PATH)/arch-common/bionic/crtend.S
125 @mkdir -p $(dir $@)
126 $(hide) $(PRIVATE_CC) $(PRIVATE_CFLAGS) \
127 -MD -MF $(@:%.o=%.d) -o $@ -c $<
128 $(transform-d-to-p)
129-include $(GEN:%.o=%.P)
130
131# Clear temp vars
132my_libc_crt_target_ldflags :=
133my_libc_crt_target_so_cflags :=
134my_libc_crt_target_cflags :=
135my_libc_crt_target_crtbegin_so_file :=
136my_libc_crt_target_crtbegin_file :=
137my_arch :=