build_bc_lib_internal.mk revision 480202aa71e8d784ae01d0c9a1094fa7f87cd4c0 
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# Bug: 25435756 - must be switched back to the proper API level
43bc_RS_VERSION := -DRS_VERSION=4294967295
44
45# Disable deprecated warnings, because we have to support even legacy APIs.
46bc_warning_flags := -Wno-deprecated -Werror
47
48bc_cflags := -MD \
49             $(bc_RS_VERSION) \
50             -std=c99 \
51             -c \
52             -O3 \
53             -fno-builtin \
54             -emit-llvm \
55             -target $(BCC_RS_TRIPLE) \
56             -fsigned-char \
57             $($(LOCAL_2ND_ARCH_VAR_PREFIX)RS_TRIPLE_CFLAGS) \
58             $(bc_warning_flags) \
59             $(LOCAL_CFLAGS) \
60             $(bc_translated_clang_cc1_cflags) \
61             $(LOCAL_CFLAGS_$(my_32_64_bit_suffix))
62
63ifeq ($(rs_debug_runtime),1)
64    bc_cflags += -DRS_DEBUG_RUNTIME
65endif
66
67ifeq ($(rs_g_runtime),1)
68    bc_cflags += -DRS_G_RUNTIME
69endif
70
71bc_src_files := $(LOCAL_SRC_FILES)
72bc_src_files += $(LOCAL_SRC_FILES_$(TARGET_$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)) $(LOCAL_SRC_FILES_$(my_32_64_bit_suffix))
73
74c_sources := $(filter %.c,$(bc_src_files))
75ll_sources := $(filter %.ll,$(bc_src_files))
76
77c_bc_files := $(patsubst %.c,%.bc, \
78    $(addprefix $(intermediates)/, $(c_sources)))
79
80ll_bc_files := $(patsubst %.ll,%.bc, \
81    $(addprefix $(intermediates)/, $(ll_sources)))
82
83$(c_bc_files): PRIVATE_INCLUDES := \
84    frameworks/rs/scriptc \
85    external/clang/lib/Headers
86$(c_bc_files): PRIVATE_CFLAGS := $(bc_cflags)
87
88$(c_bc_files): $(intermediates)/%.bc: $(LOCAL_PATH)/%.c $(bc_clang)
89	@echo "bc: $(PRIVATE_MODULE) <= $<"
90	@mkdir -p $(dir $@)
91	$(hide) $(RELATIVE_PWD) $(bc_clang) $(addprefix -I, $(PRIVATE_INCLUDES)) $(PRIVATE_CFLAGS) $< -o $@
92	$(call transform-d-to-p-args,$(@:%.bc=%.d),$(@:%.bc=%.P))
93
94$(ll_bc_files): $(intermediates)/%.bc: $(LOCAL_PATH)/%.ll $(RS_LLVM_AS)
95	@mkdir -p $(dir $@)
96	$(hide) $(RELATIVE_PWD) $(RS_LLVM_AS) $< -o $@
97
98-include $(c_bc_files:%.bc=%.P)
99
100$(LOCAL_BUILT_MODULE): PRIVATE_BC_FILES := $(c_bc_files) $(ll_bc_files)
101$(LOCAL_BUILT_MODULE): $(c_bc_files) $(ll_bc_files)
102$(LOCAL_BUILT_MODULE): $(RS_LLVM_LINK)
103$(LOCAL_BUILT_MODULE): $(RS_LLVM_AS) $(BCC_STRIP_ATTR)
104	@echo "bc lib: $(PRIVATE_MODULE) ($@)"
105	@mkdir -p $(dir $@)
106	# Strip useless known warning about combining mismatched modules, as well as
107	# any blank lines that llvm-link inserts.
108	$(hide) $(RELATIVE_PWD) $(RS_LLVM_LINK) $(PRIVATE_BC_FILES) -o $@.unstripped 2> >(grep -v "\(modules of different\)\|^$$" >&2)
109	$(hide) $(RELATIVE_PWD) $(BCC_STRIP_ATTR) -o $@ $@.unstripped
110
111BCC_RS_TRIPLE :=
112