The Android Open Source Project | 88b6079 | 2009-03-03 19:28:42 -0800 | [diff] [blame] | 1 | # Configuration for Linux on ARM. |
| 2 | # Included by combo/select.make |
| 3 | |
| 4 | # You can set TARGET_TOOLS_PREFIX to get gcc from somewhere else |
| 5 | ifeq ($(strip $($(combo_target)TOOLS_PREFIX)),) |
| 6 | $(combo_target)TOOLS_PREFIX := \ |
Doug Kwan | bd215ed | 2009-05-14 02:17:32 -0700 | [diff] [blame] | 7 | prebuilt/$(HOST_PREBUILT_TAG)/toolchain/arm-eabi-4.2.1/bin/arm-eabi- |
The Android Open Source Project | 88b6079 | 2009-03-03 19:28:42 -0800 | [diff] [blame] | 8 | endif |
| 9 | |
| 10 | $(combo_target)CC := $($(combo_target)TOOLS_PREFIX)gcc$(HOST_EXECUTABLE_SUFFIX) |
| 11 | $(combo_target)CXX := $($(combo_target)TOOLS_PREFIX)g++$(HOST_EXECUTABLE_SUFFIX) |
| 12 | $(combo_target)AR := $($(combo_target)TOOLS_PREFIX)ar$(HOST_EXECUTABLE_SUFFIX) |
| 13 | $(combo_target)OBJCOPY := $($(combo_target)TOOLS_PREFIX)objcopy$(HOST_EXECUTABLE_SUFFIX) |
| 14 | $(combo_target)LD := $($(combo_target)TOOLS_PREFIX)ld$(HOST_EXECUTABLE_SUFFIX) |
| 15 | |
| 16 | $(combo_target)NO_UNDEFINED_LDFLAGS := -Wl,--no-undefined |
| 17 | |
Dave Bort | 9528248 | 2009-04-23 18:44:55 -0700 | [diff] [blame] | 18 | TARGET_arm_CFLAGS := -O2 \ |
| 19 | -fomit-frame-pointer \ |
| 20 | -fstrict-aliasing \ |
| 21 | -funswitch-loops \ |
| 22 | -finline-limit=300 |
The Android Open Source Project | 88b6079 | 2009-03-03 19:28:42 -0800 | [diff] [blame] | 23 | |
Dave Bort | 9528248 | 2009-04-23 18:44:55 -0700 | [diff] [blame] | 24 | TARGET_thumb_CFLAGS := -mthumb \ |
| 25 | -Os \ |
| 26 | -fomit-frame-pointer \ |
| 27 | -fno-strict-aliasing \ |
| 28 | -finline-limit=64 |
The Android Open Source Project | 88b6079 | 2009-03-03 19:28:42 -0800 | [diff] [blame] | 29 | |
Dave Bort | 9528248 | 2009-04-23 18:44:55 -0700 | [diff] [blame] | 30 | # Set FORCE_ARM_DEBUGGING to "true" in your buildspec.mk |
| 31 | # or in your environment to force a full arm build, even for |
| 32 | # files that are normally built as thumb; this can make |
| 33 | # gdb debugging easier. Don't forget to do a clean build. |
| 34 | # |
| 35 | # NOTE: if you try to build a -O0 build with thumb, several |
The Android Open Source Project | 88b6079 | 2009-03-03 19:28:42 -0800 | [diff] [blame] | 36 | # of the libraries (libpv, libwebcore, libkjs) need to be built |
| 37 | # with -mlong-calls. When built at -O0, those libraries are |
| 38 | # too big for a thumb "BL <label>" to go from one end to the other. |
Dave Bort | 9528248 | 2009-04-23 18:44:55 -0700 | [diff] [blame] | 39 | ifeq ($(FORCE_ARM_DEBUGGING),true) |
| 40 | TARGET_arm_CFLAGS += -fno-omit-frame-pointer |
| 41 | TARGET_thumb_CFLAGS += -marm -fno-omit-frame-pointer |
| 42 | endif |
The Android Open Source Project | 88b6079 | 2009-03-03 19:28:42 -0800 | [diff] [blame] | 43 | |
| 44 | ## on some hosts, the target cross-compiler is not available so do not run this command |
| 45 | ifneq ($(wildcard $($(combo_target)CC)),) |
| 46 | $(combo_target)LIBGCC := $(shell $($(combo_target)CC) -mthumb-interwork -print-libgcc-file-name) |
| 47 | endif |
| 48 | |
| 49 | $(combo_target)GLOBAL_CFLAGS += \ |
| 50 | -march=armv5te -mtune=xscale \ |
| 51 | -msoft-float -fpic \ |
| 52 | -mthumb-interwork \ |
| 53 | -ffunction-sections \ |
| 54 | -funwind-tables \ |
| 55 | -fstack-protector \ |
| 56 | -fno-short-enums \ |
| 57 | -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ \ |
| 58 | -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ \ |
| 59 | -include $(call select-android-config-h,linux-arm) |
| 60 | |
| 61 | $(combo_target)GLOBAL_CPPFLAGS += -fvisibility-inlines-hidden |
| 62 | |
| 63 | $(combo_target)RELEASE_CFLAGS := \ |
| 64 | -DSK_RELEASE -DNDEBUG \ |
The Android Open Source Project | 6a5f7f0 | 2009-03-05 14:34:30 -0800 | [diff] [blame] | 65 | -g \ |
The Android Open Source Project | 88b6079 | 2009-03-03 19:28:42 -0800 | [diff] [blame] | 66 | -Wstrict-aliasing=2 \ |
| 67 | -finline-functions \ |
| 68 | -fno-inline-functions-called-once \ |
| 69 | -fgcse-after-reload \ |
| 70 | -frerun-cse-after-loop \ |
| 71 | -frename-registers |
| 72 | |
| 73 | libc_root := bionic/libc |
| 74 | libm_root := bionic/libm |
| 75 | libstdc++_root := bionic/libstdc++ |
| 76 | libthread_db_root := bionic/libthread_db |
| 77 | |
| 78 | # unless CUSTOM_KERNEL_HEADERS is defined, we're going to use |
| 79 | # symlinks located in out/ to point to the appropriate kernel |
| 80 | # headers. see 'config/kernel_headers.make' for more details |
| 81 | # |
| 82 | ifneq ($(CUSTOM_KERNEL_HEADERS),) |
| 83 | KERNEL_HEADERS_COMMON := $(CUSTOM_KERNEL_HEADERS) |
| 84 | KERNEL_HEADERS_ARCH := $(CUSTOM_KERNEL_HEADERS) |
| 85 | else |
| 86 | KERNEL_HEADERS_COMMON := $(libc_root)/kernel/common |
| 87 | KERNEL_HEADERS_ARCH := $(libc_root)/kernel/arch-$(TARGET_ARCH) |
| 88 | endif |
| 89 | KERNEL_HEADERS := $(KERNEL_HEADERS_COMMON) $(KERNEL_HEADERS_ARCH) |
| 90 | |
| 91 | $(combo_target)C_INCLUDES := \ |
| 92 | $(libc_root)/arch-arm/include \ |
| 93 | $(libc_root)/include \ |
| 94 | $(libstdc++_root)/include \ |
| 95 | $(KERNEL_HEADERS) \ |
| 96 | $(libm_root)/include \ |
| 97 | $(libm_root)/include/arch/arm \ |
| 98 | $(libthread_db_root)/include |
| 99 | |
| 100 | TARGET_CRTBEGIN_STATIC_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtbegin_static.o |
| 101 | TARGET_CRTBEGIN_DYNAMIC_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtbegin_dynamic.o |
| 102 | TARGET_CRTEND_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtend_android.o |
| 103 | |
| 104 | TARGET_STRIP_MODULE:=true |
| 105 | |
| 106 | $(combo_target)DEFAULT_SYSTEM_SHARED_LIBRARIES := libc libstdc++ libm |
| 107 | |
| 108 | $(combo_target)CUSTOM_LD_COMMAND := true |
| 109 | define transform-o-to-shared-lib-inner |
| 110 | $(TARGET_CXX) \ |
| 111 | -nostdlib -Wl,-soname,$(notdir $@) -Wl,-T,$(BUILD_SYSTEM)/armelf.xsc \ |
| 112 | -Wl,--gc-sections \ |
| 113 | -Wl,-shared,-Bsymbolic \ |
| 114 | $(TARGET_GLOBAL_LD_DIRS) \ |
| 115 | $(PRIVATE_ALL_OBJECTS) \ |
| 116 | -Wl,--whole-archive \ |
| 117 | $(call normalize-host-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \ |
| 118 | -Wl,--no-whole-archive \ |
| 119 | $(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \ |
| 120 | $(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \ |
| 121 | -o $@ \ |
| 122 | $(PRIVATE_LDFLAGS) \ |
| 123 | $(TARGET_LIBGCC) |
| 124 | endef |
| 125 | |
| 126 | define transform-o-to-executable-inner |
| 127 | $(TARGET_CXX) -nostdlib -Bdynamic -Wl,-T,$(BUILD_SYSTEM)/armelf.x \ |
| 128 | -Wl,-dynamic-linker,/system/bin/linker \ |
| 129 | -Wl,--gc-sections \ |
| 130 | -Wl,-z,nocopyreloc \ |
| 131 | -o $@ \ |
| 132 | $(TARGET_GLOBAL_LD_DIRS) \ |
| 133 | -Wl,-rpath-link=$(TARGET_OUT_INTERMEDIATE_LIBRARIES) \ |
| 134 | $(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \ |
| 135 | $(TARGET_CRTBEGIN_DYNAMIC_O) \ |
| 136 | $(PRIVATE_ALL_OBJECTS) \ |
| 137 | $(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \ |
| 138 | $(PRIVATE_LDFLAGS) \ |
| 139 | $(TARGET_LIBGCC) \ |
| 140 | $(TARGET_CRTEND_O) |
| 141 | endef |
| 142 | |
| 143 | define transform-o-to-static-executable-inner |
| 144 | $(TARGET_CXX) -nostdlib -Bstatic -Wl,-T,$(BUILD_SYSTEM)/armelf.x \ |
| 145 | -Wl,--gc-sections \ |
| 146 | -o $@ \ |
| 147 | $(TARGET_GLOBAL_LD_DIRS) \ |
| 148 | $(TARGET_CRTBEGIN_STATIC_O) \ |
| 149 | $(PRIVATE_LDFLAGS) \ |
| 150 | $(PRIVATE_ALL_OBJECTS) \ |
| 151 | $(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \ |
| 152 | $(TARGET_LIBGCC) \ |
| 153 | $(TARGET_CRTEND_O) |
| 154 | endef |