1########################################################### 2## Standard rules for building binary object files from 3## asm/c/cpp/yacc/lex source files. 4## 5## The list of object files is exported in $(all_objects). 6########################################################### 7 8####################################### 9include $(BUILD_SYSTEM)/base_rules.mk 10####################################### 11 12########################################################### 13## Define PRIVATE_ variables used by multiple module types 14########################################################### 15$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_NO_DEFAULT_COMPILER_FLAGS := \ 16 $(strip $(LOCAL_NO_DEFAULT_COMPILER_FLAGS)) 17 18ifeq ($(strip $(LOCAL_CC)),) 19 LOCAL_CC := $($(my_prefix)CC) 20endif 21$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_CC := $(LOCAL_CC) 22 23ifeq ($(strip $(LOCAL_CXX)),) 24 LOCAL_CXX := $($(my_prefix)CXX) 25endif 26$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_CXX := $(LOCAL_CXX) 27 28# TODO: support a mix of standard extensions so that this isn't necessary 29LOCAL_CPP_EXTENSION := $(strip $(LOCAL_CPP_EXTENSION)) 30ifeq ($(LOCAL_CPP_EXTENSION),) 31 LOCAL_CPP_EXTENSION := .cpp 32endif 33$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_CPP_EXTENSION := $(LOCAL_CPP_EXTENSION) 34 35# Certain modules like libdl have to have symbols resolved at runtime and blow 36# up if --no-undefined is passed to the linker. 37ifeq ($(strip $(LOCAL_NO_DEFAULT_COMPILER_FLAGS)),) 38ifeq ($(strip $(LOCAL_ALLOW_UNDEFINED_SYMBOLS)),) 39 LOCAL_LDFLAGS := $(LOCAL_LDFLAGS) $($(my_prefix)NO_UNDEFINED_LDFLAGS) 40endif 41endif 42 43########################################################### 44## Define arm-vs-thumb-mode flags. 45########################################################### 46LOCAL_ARM_MODE := $(strip $(LOCAL_ARM_MODE)) 47arm_objects_mode := $(if $(LOCAL_ARM_MODE),$(LOCAL_ARM_MODE),arm) 48normal_objects_mode := $(if $(LOCAL_ARM_MODE),$(LOCAL_ARM_MODE),thumb) 49 50# Read the values from something like TARGET_arm_CFLAGS or 51# TARGET_thumb_CFLAGS. HOST_(arm|thumb)_CFLAGS values aren't 52# actually used (although they are usually empty). 53arm_objects_cflags := $($(my_prefix)$(arm_objects_mode)_CFLAGS) 54normal_objects_cflags := $($(my_prefix)$(normal_objects_mode)_CFLAGS) 55 56########################################################### 57## Define per-module debugging flags. Users can turn on 58## debugging for a particular module by setting DEBUG_MODULE_ModuleName 59## to a non-empty value in their environment or buildspec.mk, 60## and setting HOST_/TARGET_CUSTOM_DEBUG_CFLAGS to the 61## debug flags that they want to use. 62########################################################### 63ifdef DEBUG_MODULE_$(strip $(LOCAL_MODULE)) 64 debug_cflags := $($(my_prefix)CUSTOM_DEBUG_CFLAGS) 65else 66 debug_cflags := 67endif 68 69########################################################### 70## Stuff source generated from one-off tools 71########################################################### 72$(LOCAL_GENERATED_SOURCES): PRIVATE_MODULE := $(LOCAL_MODULE) 73 74ALL_GENERATED_SOURCES += $(LOCAL_GENERATED_SOURCES) 75 76 77########################################################### 78## YACC: Compile .y files to .cpp and the to .o. 79########################################################### 80 81yacc_sources := $(filter %.y,$(LOCAL_SRC_FILES)) 82yacc_cpps := $(addprefix \ 83 $(intermediates)/,$(yacc_sources:.y=$(LOCAL_CPP_EXTENSION))) 84yacc_headers := $(yacc_cpps:$(LOCAL_CPP_EXTENSION)=.h) 85yacc_objects := $(yacc_cpps:$(LOCAL_CPP_EXTENSION)=.o) 86 87ifneq ($(strip $(yacc_cpps)),) 88$(yacc_cpps): $(intermediates)/%$(LOCAL_CPP_EXTENSION): \ 89 $(TOPDIR)$(LOCAL_PATH)/%.y \ 90 $(lex_cpps) $(LOCAL_ADDITIONAL_DEPENDENCIES) 91 $(call transform-y-to-cpp,$(PRIVATE_CPP_EXTENSION)) 92$(yacc_headers): $(intermediates)/%.h: $(intermediates)/%$(LOCAL_CPP_EXTENSION) 93 94$(yacc_objects): PRIVATE_ARM_MODE := $(normal_objects_mode) 95$(yacc_objects): PRIVATE_ARM_CFLAGS := $(normal_objects_cflags) 96$(yacc_objects): $(intermediates)/%.o: $(intermediates)/%$(LOCAL_CPP_EXTENSION) 97 $(transform-$(PRIVATE_HOST)cpp-to-o) 98endif 99 100########################################################### 101## LEX: Compile .l files to .cpp and then to .o. 102########################################################### 103 104lex_sources := $(filter %.l,$(LOCAL_SRC_FILES)) 105lex_cpps := $(addprefix \ 106 $(intermediates)/,$(lex_sources:.l=$(LOCAL_CPP_EXTENSION))) 107lex_objects := $(lex_cpps:$(LOCAL_CPP_EXTENSION)=.o) 108 109ifneq ($(strip $(lex_cpps)),) 110$(lex_cpps): $(intermediates)/%$(LOCAL_CPP_EXTENSION): \ 111 $(TOPDIR)$(LOCAL_PATH)/%.l 112 $(transform-l-to-cpp) 113 114$(lex_objects): PRIVATE_ARM_MODE := $(normal_objects_mode) 115$(lex_objects): PRIVATE_ARM_CFLAGS := $(normal_objects_cflags) 116$(lex_objects): $(intermediates)/%.o: \ 117 $(intermediates)/%$(LOCAL_CPP_EXTENSION) \ 118 $(LOCAL_ADDITIONAL_DEPENDENCIES) \ 119 $(yacc_headers) 120 $(transform-$(PRIVATE_HOST)cpp-to-o) 121endif 122 123########################################################### 124## C++: Compile .cpp files to .o. 125########################################################### 126 127# we also do this on host modules and sim builds, even though 128# it's not really arm, because there are files that are shared. 129cpp_arm_sources := $(patsubst %$(LOCAL_CPP_EXTENSION).arm,%$(LOCAL_CPP_EXTENSION),$(filter %$(LOCAL_CPP_EXTENSION).arm,$(LOCAL_SRC_FILES))) 130cpp_arm_objects := $(addprefix $(intermediates)/,$(cpp_arm_sources:$(LOCAL_CPP_EXTENSION)=.o)) 131 132cpp_normal_sources := $(filter %$(LOCAL_CPP_EXTENSION),$(LOCAL_SRC_FILES)) 133cpp_normal_objects := $(addprefix $(intermediates)/,$(cpp_normal_sources:$(LOCAL_CPP_EXTENSION)=.o)) 134 135$(cpp_arm_objects): PRIVATE_ARM_MODE := $(arm_objects_mode) 136$(cpp_arm_objects): PRIVATE_ARM_CFLAGS := $(arm_objects_cflags) 137$(cpp_normal_objects): PRIVATE_ARM_MODE := $(normal_objects_mode) 138$(cpp_normal_objects): PRIVATE_ARM_CFLAGS := $(normal_objects_cflags) 139 140cpp_objects := $(cpp_arm_objects) $(cpp_normal_objects) 141 142ifneq ($(strip $(cpp_objects)),) 143$(cpp_objects): $(intermediates)/%.o: \ 144 $(TOPDIR)$(LOCAL_PATH)/%$(LOCAL_CPP_EXTENSION) \ 145 $(yacc_cpps) $(LOCAL_ADDITIONAL_DEPENDENCIES) 146 $(transform-$(PRIVATE_HOST)cpp-to-o) 147-include $(cpp_objects:%.o=%.P) 148endif 149 150########################################################### 151## C++: Compile generated .cpp files to .o. 152########################################################### 153 154gen_cpp_sources := $(filter %$(LOCAL_CPP_EXTENSION),$(LOCAL_GENERATED_SOURCES)) 155gen_cpp_objects := $(gen_cpp_sources:%$(LOCAL_CPP_EXTENSION)=%.o) 156 157ifneq ($(strip $(gen_cpp_objects)),) 158# Compile all generated files as thumb. 159# TODO: support compiling certain generated files as arm. 160$(gen_cpp_objects): PRIVATE_ARM_MODE := $(normal_objects_mode) 161$(gen_cpp_objects): PRIVATE_ARM_CFLAGS := $(normal_objects_cflags) 162$(gen_cpp_objects): $(intermediates)/%.o: $(intermediates)/%$(LOCAL_CPP_EXTENSION) $(yacc_cpps) $(LOCAL_ADDITIONAL_DEPENDENCIES) 163 $(transform-$(PRIVATE_HOST)cpp-to-o) 164-include $(gen_cpp_objects:%.o=%.P) 165endif 166 167########################################################### 168## S: Compile generated .S and .s files to .o. 169########################################################### 170 171gen_S_sources := $(filter %.S,$(LOCAL_GENERATED_SOURCES)) 172gen_S_objects := $(gen_S_sources:%.S=%.o) 173 174ifneq ($(strip $(gen_S_sources)),) 175$(gen_S_objects): $(intermediates)/%.o: $(intermediates)/%.S $(LOCAL_ADDITIONAL_DEPENDENCIES) 176 $(transform-$(PRIVATE_HOST)s-to-o) 177-include $(gen_S_objects:%.o=%.P) 178endif 179 180gen_s_sources := $(filter %.s,$(LOCAL_GENERATED_SOURCES)) 181gen_s_objects := $(gen_s_sources:%.s=%.o) 182 183ifneq ($(strip $(gen_s_objects)),) 184$(gen_s_objects): $(intermediates)/%.o: $(intermediates)/%.s $(LOCAL_ADDITIONAL_DEPENDENCIES) 185 $(transform-$(PRIVATE_HOST)s-to-o-no-deps) 186-include $(gen_s_objects:%.o=%.P) 187endif 188 189gen_asm_objects := $(gen_S_objects) $(gen_s_objects) 190 191########################################################### 192## C: Compile .c files to .o. 193########################################################### 194 195c_arm_sources := $(patsubst %.c.arm,%.c,$(filter %.c.arm,$(LOCAL_SRC_FILES))) 196c_arm_objects := $(addprefix $(intermediates)/,$(c_arm_sources:.c=.o)) 197 198c_normal_sources := $(filter %.c,$(LOCAL_SRC_FILES)) 199c_normal_objects := $(addprefix $(intermediates)/,$(c_normal_sources:.c=.o)) 200 201$(c_arm_objects): PRIVATE_ARM_MODE := $(arm_objects_mode) 202$(c_arm_objects): PRIVATE_ARM_CFLAGS := $(arm_objects_cflags) 203$(c_normal_objects): PRIVATE_ARM_MODE := $(normal_objects_mode) 204$(c_normal_objects): PRIVATE_ARM_CFLAGS := $(normal_objects_cflags) 205 206c_objects := $(c_arm_objects) $(c_normal_objects) 207 208ifneq ($(strip $(c_objects)),) 209$(c_objects): $(intermediates)/%.o: $(TOPDIR)$(LOCAL_PATH)/%.c $(yacc_cpps) $(LOCAL_ADDITIONAL_DEPENDENCIES) 210 $(transform-$(PRIVATE_HOST)c-to-o) 211-include $(c_objects:%.o=%.P) 212endif 213 214########################################################### 215## C: Compile generated .c files to .o. 216########################################################### 217 218gen_c_sources := $(filter %.c,$(LOCAL_GENERATED_SOURCES)) 219gen_c_objects := $(gen_c_sources:%.c=%.o) 220 221ifneq ($(strip $(gen_c_objects)),) 222# Compile all generated files as thumb. 223# TODO: support compiling certain generated files as arm. 224$(gen_c_objects): PRIVATE_ARM_MODE := $(normal_objects_mode) 225$(gen_c_objects): PRIVATE_ARM_CFLAGS := $(normal_objects_cflags) 226$(gen_c_objects): $(intermediates)/%.o: $(intermediates)/%.c $(yacc_cpps) $(LOCAL_ADDITIONAL_DEPENDENCIES) 227 $(transform-$(PRIVATE_HOST)c-to-o) 228-include $(gen_c_objects:%.o=%.P) 229endif 230 231########################################################### 232## ObjC: Compile .m files to .o 233########################################################### 234 235objc_sources := $(filter %.m,$(LOCAL_SRC_FILES)) 236objc_objects := $(addprefix $(intermediates)/,$(objc_sources:.m=.o)) 237 238ifneq ($(strip $(objc_objects)),) 239$(objc_objects): $(intermediates)/%.o: $(TOPDIR)$(LOCAL_PATH)/%.m $(yacc_cpps) $(PRIVATE_ADDITIONAL_DEPENDENCIES) 240 $(transform-$(PRIVATE_HOST)m-to-o) 241-include $(objc_objects:%.o=%.P) 242endif 243 244########################################################### 245## AS: Compile .S files to .o. 246########################################################### 247 248asm_sources_S := $(filter %.S,$(LOCAL_SRC_FILES)) 249asm_objects_S := $(addprefix $(intermediates)/,$(asm_sources_S:.S=.o)) 250 251ifneq ($(strip $(asm_objects_S)),) 252$(asm_objects_S): $(intermediates)/%.o: $(TOPDIR)$(LOCAL_PATH)/%.S $(LOCAL_ADDITIONAL_DEPENDENCIES) 253 $(transform-$(PRIVATE_HOST)s-to-o) 254-include $(asm_objects_S:%.o=%.P) 255endif 256 257asm_sources_s := $(filter %.s,$(LOCAL_SRC_FILES)) 258asm_objects_s := $(addprefix $(intermediates)/,$(asm_sources_s:.s=.o)) 259 260ifneq ($(strip $(asm_objects_s)),) 261$(asm_objects_s): $(intermediates)/%.o: $(TOPDIR)$(LOCAL_PATH)/%.s $(LOCAL_ADDITIONAL_DEPENDENCIES) 262 $(transform-$(PRIVATE_HOST)s-to-o-no-deps) 263-include $(asm_objects_s:%.o=%.P) 264endif 265 266asm_objects := $(asm_objects_S) $(asm_objects_s) 267 268 269########################################################### 270## Common object handling. 271########################################################### 272 273# some rules depend on asm_objects being first. If your code depends on 274# being first, it's reasonable to require it to be assembly 275all_objects := \ 276 $(asm_objects) \ 277 $(cpp_objects) \ 278 $(gen_cpp_objects) \ 279 $(gen_asm_objects) \ 280 $(c_objects) \ 281 $(gen_c_objects) \ 282 $(yacc_objects) \ 283 $(lex_objects) \ 284 $(addprefix $(TOPDIR)$(LOCAL_PATH)/,$(LOCAL_PREBUILT_OBJ_FILES)) 285 286LOCAL_C_INCLUDES += $(TOPDIR)$(LOCAL_PATH) $(intermediates) $(base_intermediates) 287 288$(all_objects) : | $(LOCAL_GENERATED_SOURCES) 289ALL_C_CPP_ETC_OBJECTS += $(all_objects) 290 291########################################################### 292## Copy headers to the install tree 293########################################################### 294include $(BUILD_COPY_HEADERS) 295 296########################################################### 297# Standard library handling. 298# 299# On the target, we compile with -nostdlib, so we must add in the 300# default system shared libraries, unless they have requested not 301# to by supplying a LOCAL_SYSTEM_SHARED_LIBRARIES value. One would 302# supply that, for example, when building libc itself. 303########################################################### 304ifndef LOCAL_IS_HOST_MODULE 305 ifeq ($(LOCAL_SYSTEM_SHARED_LIBRARIES),none) 306 LOCAL_SHARED_LIBRARIES += $($(my_prefix)DEFAULT_SYSTEM_SHARED_LIBRARIES) 307 else 308 LOCAL_SHARED_LIBRARIES += $(LOCAL_SYSTEM_SHARED_LIBRARIES) 309 endif 310endif 311 312# Logging used to be part of libcutils (target) and libutils (sim); 313# hack modules that use those other libs to also include liblog. 314# All of this complexity is to make sure that liblog only appears 315# once, and appears just before libcutils or libutils on the link 316# line. 317# TODO: remove this hack and change all modules to use liblog 318# when necessary. 319define insert-liblog 320 $(if $(filter liblog,$(1)),$(1), \ 321 $(if $(filter libcutils,$(1)), \ 322 $(patsubst libcutils,liblog libcutils,$(1)) \ 323 , \ 324 $(patsubst libutils,liblog libutils,$(1)) \ 325 ) \ 326 ) 327endef 328ifneq (,$(filter libcutils libutils,$(LOCAL_SHARED_LIBRARIES))) 329 LOCAL_SHARED_LIBRARIES := $(call insert-liblog,$(LOCAL_SHARED_LIBRARIES)) 330endif 331ifneq (,$(filter libcutils libutils,$(LOCAL_STATIC_LIBRARIES))) 332 LOCAL_STATIC_LIBRARIES := $(call insert-liblog,$(LOCAL_STATIC_LIBRARIES)) 333endif 334ifneq (,$(filter libcutils libutils,$(LOCAL_WHOLE_STATIC_LIBRARIES))) 335 LOCAL_WHOLE_STATIC_LIBRARIES := $(call insert-liblog,$(LOCAL_WHOLE_STATIC_LIBRARIES)) 336endif 337 338########################################################### 339# The list of libraries that this module will link against are in 340# these variables. Each is a list of bare module names like "libc libm". 341# 342# LOCAL_SHARED_LIBRARIES 343# LOCAL_STATIC_LIBRARIES 344# LOCAL_WHOLE_STATIC_LIBRARIES 345# 346# We need to convert the bare names into the dependencies that 347# we'll use for LOCAL_BUILT_MODULE and LOCAL_INSTALLED_MODULE. 348# LOCAL_BUILT_MODULE should depend on the BUILT versions of the 349# libraries, so that simply building this module doesn't force 350# an install of a library. Similarly, LOCAL_INSTALLED_MODULE 351# should depend on the INSTALLED versions of the libraries so 352# that they get installed when this module does. 353########################################################### 354# NOTE: 355# WHOLE_STATIC_LIBRARIES are libraries that are pulled into the 356# module without leaving anything out, which is useful for turning 357# a collection of .a files into a .so file. Linking against a 358# normal STATIC_LIBRARY will only pull in code/symbols that are 359# referenced by the module. (see gcc/ld's --whole-archive option) 360########################################################### 361 362# Get the list of BUILT libraries, which are under 363# various intermediates directories. 364so_suffix := $($(my_prefix)SHLIB_SUFFIX) 365a_suffix := $($(my_prefix)STATIC_LIB_SUFFIX) 366 367built_shared_libraries := \ 368 $(addprefix $($(my_prefix)OUT_INTERMEDIATE_LIBRARIES)/, \ 369 $(addsuffix $(so_suffix), \ 370 $(LOCAL_SHARED_LIBRARIES))) 371 372built_static_libraries := \ 373 $(foreach lib,$(LOCAL_STATIC_LIBRARIES), \ 374 $(call intermediates-dir-for, \ 375 STATIC_LIBRARIES,$(lib),$(LOCAL_IS_HOST_MODULE))/$(lib)$(a_suffix)) 376 377built_whole_libraries := \ 378 $(foreach lib,$(LOCAL_WHOLE_STATIC_LIBRARIES), \ 379 $(call intermediates-dir-for, \ 380 STATIC_LIBRARIES,$(lib),$(LOCAL_IS_HOST_MODULE))/$(lib)$(a_suffix)) 381 382# Get the list of INSTALLED libraries. Strip off the various 383# intermediates directories and point to the common lib dirs. 384installed_shared_libraries := \ 385 $(addprefix $($(my_prefix)OUT_SHARED_LIBRARIES)/, \ 386 $(notdir $(built_shared_libraries))) 387 388# We don't care about installed static libraries, since the 389# libraries have already been linked into the module at that point. 390# We do, however, care about the NOTICE files for any static 391# libraries that we use. (see notice_files.make) 392 393installed_static_library_notice_file_targets := \ 394 $(foreach lib,$(LOCAL_STATIC_LIBRARIES) $(LOCAL_WHOLE_STATIC_LIBRARIES), \ 395 NOTICE-$(if $(LOCAL_IS_HOST_MODULE),HOST,TARGET)-STATIC_LIBRARIES-$(lib)) 396 397########################################################### 398# Rule-specific variable definitions 399########################################################### 400$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_YACCFLAGS := $(LOCAL_YACCFLAGS) 401$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_ASFLAGS := $(LOCAL_ASFLAGS) 402$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_CFLAGS := $(LOCAL_CFLAGS) 403$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_CPPFLAGS := $(LOCAL_CPPFLAGS) 404$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_DEBUG_CFLAGS := $(debug_cflags) 405$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_C_INCLUDES := $(LOCAL_C_INCLUDES) 406$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_LDFLAGS := $(LOCAL_LDFLAGS) 407$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_LDLIBS := $(LOCAL_LDLIBS) 408 409# this is really the way to get the files onto the command line instead 410# of using $^, because then LOCAL_ADDITIONAL_DEPENDENCIES doesn't work 411$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_ALL_SHARED_LIBRARIES := $(built_shared_libraries) 412$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_ALL_STATIC_LIBRARIES := $(built_static_libraries) 413$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_ALL_WHOLE_STATIC_LIBRARIES := $(built_whole_libraries) 414$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_ALL_OBJECTS := $(all_objects) 415 416########################################################### 417# Define library dependencies. 418########################################################### 419# all_libraries is used for the dependencies on LOCAL_BUILT_MODULE. 420all_libraries := \ 421 $(built_shared_libraries) \ 422 $(built_static_libraries) \ 423 $(built_whole_libraries) 424 425# Make LOCAL_INSTALLED_MODULE depend on the installed versions of the 426# libraries so they get installed along with it. We don't need to 427# rebuild it when installing it, though, so this can be an order-only 428# dependency. 429$(LOCAL_INSTALLED_MODULE): | $(installed_shared_libraries) 430 431# Also depend on the notice files for any static libraries that 432# are linked into this module. This will force them to be installed 433# when this module is. 434$(LOCAL_INSTALLED_MODULE): | $(installed_static_library_notice_file_targets) 435