build_bc_lib_internal.mk revision 9a82dacd1369cc3021a77f3632bb327e331a131f 
1#
2# Copyright (C) 2012 The Android Open Source Project
3#
4# Licensed under the Apache License, Version 2.0 (the "License");
5# you may not use this file except in compliance with the License.
6# You may obtain a copy of the License at
7#
8#      http://www.apache.org/licenses/LICENSE-2.0
9#
10# Unless required by applicable law or agreed to in writing, software
11# distributed under the License is distributed on an "AS IS" BASIS,
12# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13# See the License for the specific language governing permissions and
14# limitations under the License.
15#
16
17ifndef BCC_RS_TRIPLE
18BCC_RS_TRIPLE := $($(LOCAL_2ND_ARCH_VAR_PREFIX)RS_TRIPLE)
19endif
20
21# Set these values always by default
22LOCAL_MODULE_CLASS := RENDERSCRIPT_BITCODE
23
24include $(BUILD_SYSTEM)/base_rules.mk
25
26BCC_STRIP_ATTR := $(BUILD_OUT_EXECUTABLES)/bcc_strip_attr$(BUILD_EXECUTABLE_SUFFIX)
27
28bc_clang := $(RS_CLANG)
29ifdef RS_DRIVER_CLANG_EXE
30bc_clang := $(RS_DRIVER_CLANG_EXE)
31endif
32
33bc_clang_cc1_cflags := -fnative-half-type -fallow-half-arguments-and-returns
34ifeq ($(BCC_RS_TRIPLE),armv7-linux-androideabi)
35# We need to pass the +long64 flag to the underlying version of Clang, since
36# we are generating a library for use with Renderscript (64-bit long type,
37# not 32-bit).
38bc_clang_cc1_cflags += -target-feature +long64
39endif
40bc_translated_clang_cc1_cflags := $(addprefix -Xclang , $(bc_clang_cc1_cflags))
41
42# Disable deprecated warnings, because we have to support even legacy APIs.
43bc_warning_flags := -Wno-deprecated -Werror
44
45bc_cflags := -MD \
46             $(RS_VERSION_DEFINE) \
47             -std=c99 \
48             -c \
49             -O3 \
50             -fno-builtin \
51             -emit-llvm \
52             -target $(BCC_RS_TRIPLE) \
53             -fsigned-char \
54             $($(LOCAL_2ND_ARCH_VAR_PREFIX)RS_TRIPLE_CFLAGS) \
55             $(bc_warning_flags) \
56             $(LOCAL_CFLAGS) \
57             $(bc_translated_clang_cc1_cflags) \
58             $(LOCAL_CFLAGS_$(my_32_64_bit_suffix))
59
60ifeq ($(rs_debug_runtime),1)
61    bc_cflags += -DRS_DEBUG_RUNTIME
62endif
63
64ifeq ($(rs_g_runtime),1)
65    bc_cflags += -DRS_G_RUNTIME
66endif
67
68bc_src_files := $(LOCAL_SRC_FILES)
69bc_src_files += $(LOCAL_SRC_FILES_$(TARGET_$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)) $(LOCAL_SRC_FILES_$(my_32_64_bit_suffix))
70
71c_sources := $(filter %.c,$(bc_src_files))
72ll_sources := $(filter %.ll,$(bc_src_files))
73
74c_bc_files := $(patsubst %.c,%.bc, \
75    $(addprefix $(intermediates)/, $(c_sources)))
76
77ll_bc_files := $(patsubst %.ll,%.bc, \
78    $(addprefix $(intermediates)/, $(ll_sources)))
79
80$(c_bc_files): PRIVATE_INCLUDES := \
81    frameworks/rs/scriptc \
82    external/clang/lib/Headers
83$(c_bc_files): PRIVATE_CFLAGS := $(bc_cflags)
84
85$(c_bc_files): $(intermediates)/%.bc: $(LOCAL_PATH)/%.c $(bc_clang)
86	@echo "bc: $(PRIVATE_MODULE) <= $<"
87	@mkdir -p $(dir $@)
88	$(hide) $(RELATIVE_PWD) $(bc_clang) $(addprefix -I, $(PRIVATE_INCLUDES)) $(PRIVATE_CFLAGS) $< -o $@
89	$(call transform-d-to-p-args,$(@:%.bc=%.d),$(@:%.bc=%.P))
90
91$(ll_bc_files): $(intermediates)/%.bc: $(LOCAL_PATH)/%.ll $(RS_LLVM_AS)
92	@mkdir -p $(dir $@)
93	$(hide) $(RELATIVE_PWD) $(RS_LLVM_AS) $< -o $@
94
95$(foreach f,$(c_bc_files),$(call include-depfile,$(f:%.bc=%.P),$(f)))
96
97$(LOCAL_BUILT_MODULE): PRIVATE_BC_FILES := $(c_bc_files) $(ll_bc_files)
98$(LOCAL_BUILT_MODULE): $(c_bc_files) $(ll_bc_files)
99$(LOCAL_BUILT_MODULE): $(RS_LLVM_LINK)
100$(LOCAL_BUILT_MODULE): $(RS_LLVM_AS) $(BCC_STRIP_ATTR)
101	@echo "bc lib: $(PRIVATE_MODULE) ($@)"
102	@mkdir -p $(dir $@)
103	# Strip useless known warning about combining mismatched modules, as well as
104	# any blank lines that llvm-link inserts.
105	$(hide) $(RELATIVE_PWD) $(RS_LLVM_LINK) $(PRIVATE_BC_FILES) -o $@.unstripped 2> >(grep -v "\(modules of different\)\|^$$" >&2)
106	$(hide) $(RELATIVE_PWD) $(BCC_STRIP_ATTR) -o $@ $@.unstripped
107
108BCC_RS_TRIPLE :=
109