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      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 
     17 ifndef BCC_RS_TRIPLE
     18 BCC_RS_TRIPLE := $($(LOCAL_2ND_ARCH_VAR_PREFIX)RS_TRIPLE)
     19 endif
     20 
     21 # Set these values always by default
     22 LOCAL_MODULE_CLASS := RENDERSCRIPT_BITCODE
     23 
     24 include $(BUILD_SYSTEM)/base_rules.mk
     25 
     26 BCC_STRIP_ATTR := $(BUILD_OUT_EXECUTABLES)/bcc_strip_attr$(BUILD_EXECUTABLE_SUFFIX)
     27 
     28 bc_clang := $(RS_CLANG)
     29 ifdef RS_DRIVER_CLANG_EXE
     30 bc_clang := $(RS_DRIVER_CLANG_EXE)
     31 endif
     32 
     33 bc_clang_cc1_cflags := -fnative-half-type -fallow-half-arguments-and-returns
     34 ifeq ($(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).
     38 bc_clang_cc1_cflags += -target-feature +long64
     39 endif
     40 bc_translated_clang_cc1_cflags := $(addprefix -Xclang , $(bc_clang_cc1_cflags))
     41 
     42 # Disable deprecated warnings, because we have to support even legacy APIs.
     43 bc_warning_flags := -Wno-deprecated -Werror
     44 
     45 bc_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 
     60 ifeq ($(rs_debug_runtime),1)
     61     bc_cflags += -DRS_DEBUG_RUNTIME
     62 endif
     63 
     64 ifeq ($(rs_g_runtime),1)
     65     bc_cflags += -DRS_G_RUNTIME
     66 endif
     67 
     68 bc_src_files := $(LOCAL_SRC_FILES)
     69 bc_src_files += $(LOCAL_SRC_FILES_$(TARGET_$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)) $(LOCAL_SRC_FILES_$(my_32_64_bit_suffix))
     70 
     71 c_sources := $(filter %.c,$(bc_src_files))
     72 ll_sources := $(filter %.ll,$(bc_src_files))
     73 
     74 c_bc_files := $(patsubst %.c,%.bc, \
     75     $(addprefix $(intermediates)/, $(c_sources)))
     76 
     77 ll_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 
    108 BCC_RS_TRIPLE :=
    109