155 lines
5.5 KiB
Makefile
155 lines
5.5 KiB
Makefile
# Configuration for Linux on ARM.
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# Included by combo/select.make
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# You can set TARGET_TOOLS_PREFIX to get gcc from somewhere else
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ifeq ($(strip $($(combo_target)TOOLS_PREFIX)),)
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$(combo_target)TOOLS_PREFIX := \
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prebuilt/$(HOST_PREBUILT_TAG)/toolchain/arm-eabi-4.2.1/bin/arm-eabi-
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endif
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$(combo_target)CC := $($(combo_target)TOOLS_PREFIX)gcc$(HOST_EXECUTABLE_SUFFIX)
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$(combo_target)CXX := $($(combo_target)TOOLS_PREFIX)g++$(HOST_EXECUTABLE_SUFFIX)
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$(combo_target)AR := $($(combo_target)TOOLS_PREFIX)ar$(HOST_EXECUTABLE_SUFFIX)
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$(combo_target)OBJCOPY := $($(combo_target)TOOLS_PREFIX)objcopy$(HOST_EXECUTABLE_SUFFIX)
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$(combo_target)LD := $($(combo_target)TOOLS_PREFIX)ld$(HOST_EXECUTABLE_SUFFIX)
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$(combo_target)NO_UNDEFINED_LDFLAGS := -Wl,--no-undefined
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TARGET_arm_release_CFLAGS := -O2 \
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-fomit-frame-pointer \
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-fstrict-aliasing \
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-funswitch-loops \
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-finline-limit=300
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TARGET_thumb_release_CFLAGS := -mthumb \
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-Os \
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-fomit-frame-pointer \
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-fno-strict-aliasing \
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-finline-limit=64
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# When building for debug, compile everything as arm.
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TARGET_arm_debug_CFLAGS := $(TARGET_arm_release_CFLAGS) -fno-omit-frame-pointer -fno-strict-aliasing
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TARGET_thumb_debug_CFLAGS := $(TARGET_thumb_release_CFLAGS) -marm -fno-omit-frame-pointer
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# NOTE: if you try to build a debug build with thumb, several
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# of the libraries (libpv, libwebcore, libkjs) need to be built
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# with -mlong-calls. When built at -O0, those libraries are
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# too big for a thumb "BL <label>" to go from one end to the other.
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## As hopefully a temporary hack,
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## use this to force a full ARM build (for easier debugging in gdb)
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## (don't forget to do a clean build)
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##TARGET_arm_release_CFLAGS := $(TARGET_arm_release_CFLAGS) -fno-omit-frame-pointer
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##TARGET_thumb_release_CFLAGS := $(TARGET_thumb_release_CFLAGS) -marm -fno-omit-frame-pointer
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## on some hosts, the target cross-compiler is not available so do not run this command
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ifneq ($(wildcard $($(combo_target)CC)),)
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$(combo_target)LIBGCC := $(shell $($(combo_target)CC) -mthumb-interwork -print-libgcc-file-name)
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endif
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$(combo_target)GLOBAL_CFLAGS += \
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-march=armv5te -mtune=xscale \
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-msoft-float -fpic \
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-mthumb-interwork \
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-ffunction-sections \
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-funwind-tables \
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-fstack-protector \
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-fno-short-enums \
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-D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ \
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-D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ \
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-include $(call select-android-config-h,linux-arm)
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$(combo_target)GLOBAL_CPPFLAGS += -fvisibility-inlines-hidden
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$(combo_target)RELEASE_CFLAGS := \
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-DSK_RELEASE -DNDEBUG \
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-g \
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-Wstrict-aliasing=2 \
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-finline-functions \
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-fno-inline-functions-called-once \
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-fgcse-after-reload \
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-frerun-cse-after-loop \
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-frename-registers
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libc_root := bionic/libc
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libm_root := bionic/libm
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libstdc++_root := bionic/libstdc++
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libthread_db_root := bionic/libthread_db
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# unless CUSTOM_KERNEL_HEADERS is defined, we're going to use
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# symlinks located in out/ to point to the appropriate kernel
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# headers. see 'config/kernel_headers.make' for more details
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#
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ifneq ($(CUSTOM_KERNEL_HEADERS),)
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KERNEL_HEADERS_COMMON := $(CUSTOM_KERNEL_HEADERS)
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KERNEL_HEADERS_ARCH := $(CUSTOM_KERNEL_HEADERS)
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else
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KERNEL_HEADERS_COMMON := $(libc_root)/kernel/common
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KERNEL_HEADERS_ARCH := $(libc_root)/kernel/arch-$(TARGET_ARCH)
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endif
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KERNEL_HEADERS := $(KERNEL_HEADERS_COMMON) $(KERNEL_HEADERS_ARCH)
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$(combo_target)C_INCLUDES := \
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$(libc_root)/arch-arm/include \
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$(libc_root)/include \
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$(libstdc++_root)/include \
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$(KERNEL_HEADERS) \
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$(libm_root)/include \
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$(libm_root)/include/arch/arm \
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$(libthread_db_root)/include
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TARGET_CRTBEGIN_STATIC_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtbegin_static.o
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TARGET_CRTBEGIN_DYNAMIC_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtbegin_dynamic.o
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TARGET_CRTEND_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtend_android.o
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TARGET_STRIP_MODULE:=true
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$(combo_target)DEFAULT_SYSTEM_SHARED_LIBRARIES := libc libstdc++ libm
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$(combo_target)CUSTOM_LD_COMMAND := true
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define transform-o-to-shared-lib-inner
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$(TARGET_CXX) \
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-nostdlib -Wl,-soname,$(notdir $@) -Wl,-T,$(BUILD_SYSTEM)/armelf.xsc \
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-Wl,--gc-sections \
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-Wl,-shared,-Bsymbolic \
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$(TARGET_GLOBAL_LD_DIRS) \
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$(PRIVATE_ALL_OBJECTS) \
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-Wl,--whole-archive \
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$(call normalize-host-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \
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-Wl,--no-whole-archive \
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$(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \
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$(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \
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-o $@ \
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$(PRIVATE_LDFLAGS) \
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$(TARGET_LIBGCC)
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endef
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define transform-o-to-executable-inner
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$(TARGET_CXX) -nostdlib -Bdynamic -Wl,-T,$(BUILD_SYSTEM)/armelf.x \
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-Wl,-dynamic-linker,/system/bin/linker \
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-Wl,--gc-sections \
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-Wl,-z,nocopyreloc \
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-o $@ \
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$(TARGET_GLOBAL_LD_DIRS) \
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-Wl,-rpath-link=$(TARGET_OUT_INTERMEDIATE_LIBRARIES) \
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$(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \
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$(TARGET_CRTBEGIN_DYNAMIC_O) \
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$(PRIVATE_ALL_OBJECTS) \
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$(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \
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$(PRIVATE_LDFLAGS) \
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$(TARGET_LIBGCC) \
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$(TARGET_CRTEND_O)
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endef
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define transform-o-to-static-executable-inner
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$(TARGET_CXX) -nostdlib -Bstatic -Wl,-T,$(BUILD_SYSTEM)/armelf.x \
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-Wl,--gc-sections \
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-o $@ \
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$(TARGET_GLOBAL_LD_DIRS) \
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$(TARGET_CRTBEGIN_STATIC_O) \
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$(PRIVATE_LDFLAGS) \
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$(PRIVATE_ALL_OBJECTS) \
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$(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \
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$(TARGET_LIBGCC) \
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$(TARGET_CRTEND_O)
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endef
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