1# 2# Copyright (C) 2006 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# Configuration for Linux on SuperH. 18# Included by combo/select.make 19 20# You can set TARGET_TOOLS_PREFIX to get gcc from somewhere else 21ifeq ($(strip $(TARGET_TOOLS_PREFIX)),) 22TARGET_TOOLS_PREFIX := \ 23 prebuilt/$(HOST_PREBUILT_TAG)/toolchain/sh-4.3.3/bin/sh-linux-gnu- 24endif 25 26TARGET_CC := $(TARGET_TOOLS_PREFIX)gcc$(HOST_EXECUTABLE_SUFFIX) 27TARGET_CXX := $(TARGET_TOOLS_PREFIX)c++$(HOST_EXECUTABLE_SUFFIX) 28TARGET_AR := $(TARGET_TOOLS_PREFIX)ar$(HOST_EXECUTABLE_SUFFIX) 29TARGET_OBJCOPY := $(TARGET_TOOLS_PREFIX)objcopy$(HOST_EXECUTABLE_SUFFIX) 30TARGET_LD := $(TARGET_TOOLS_PREFIX)ld$(HOST_EXECUTABLE_SUFFIX) 31TARGET_STRIP := $(TARGET_TOOLS_PREFIX)strip$(HOST_EXECUTABLE_SUFFIX) 32 33ifeq ($(TARGET_BUILD_VARIANT),user) 34TARGET_STRIP_COMMAND = $(TARGET_STRIP) --strip-debug $< -o $@ 35else 36TARGET_STRIP_COMMAND = $(TARGET_STRIP) --strip-debug $< -o $@ && \ 37 $(TARGET_OBJCOPY) --add-gnu-debuglink=$< $@ 38endif 39 40TARGET_NO_UNDEFINED_LDFLAGS := -Wl,--no-undefined 41 42TARGET_sh_release_CFLAGS := -O2 \ 43 -fomit-frame-pointer \ 44 -fstrict-aliasing \ 45 -funswitch-loops \ 46 -finline-limit=300 47 48# When building for debug, compile everything as superh. 49TARGET_sh_debug_CFLAGS := $(TARGET_sh_release_CFLAGS) -fno-omit-frame-pointer -fno-strict-aliasing 50 51TARGET_GLOBAL_CFLAGS += \ 52 -fpic \ 53 -ffunction-sections \ 54 -funwind-tables \ 55 -fstack-protector \ 56 -include $(call select-android-config-h,linux-sh) 57 58TARGET_GLOBAL_CPPFLAGS += \ 59 -fno-use-cxa-atexit \ 60 -fvisibility-inlines-hidden 61 62TARGET_RELEASE_CFLAGS := \ 63 -DSK_RELEASE -DNDEBUG \ 64 -O2 -g \ 65 -Wstrict-aliasing=2 \ 66 -finline-functions \ 67 -fno-inline-functions-called-once \ 68 -fgcse-after-reload \ 69 -frerun-cse-after-loop \ 70 -frename-registers \ 71 -fno-builtin 72 73libc_root := bionic/libc 74libm_root := bionic/libm 75libstdc++_root := bionic/libstdc++ 76libthread_db_root := bionic/libthread_db 77 78 79## on some hosts, the target cross-compiler is not available so do not run this command 80ifneq ($(wildcard $(TARGET_CC)),) 81# We compile with the global cflags to ensure that 82# any flags which affect libgcc are correctly taken 83# into account. 84LIBGCC_FILENAME := $(shell $(TARGET_CC) $(TARGET_GLOBAL_CFLAGS) -print-libgcc-file-name) 85LIBGCC_EH_FILENAME := $(subst libgcc,libgcc_eh,$(LIBGCC_FILENAME)) 86TARGET_LIBGCC := $(LIBGCC_EH_FILENAME) $(LIBGCC_FILENAME) 87endif 88 89# unless CUSTOM_KERNEL_HEADERS is defined, we're going to use 90# symlinks located in out/ to point to the appropriate kernel 91# headers. see 'config/kernel_headers.make' for more details 92# 93ifneq ($(CUSTOM_KERNEL_HEADERS),) 94 KERNEL_HEADERS_COMMON := $(CUSTOM_KERNEL_HEADERS) 95 KERNEL_HEADERS_ARCH := $(CUSTOM_KERNEL_HEADERS) 96else 97 KERNEL_HEADERS_COMMON := $(libc_root)/kernel/common 98 KERNEL_HEADERS_ARCH := $(libc_root)/kernel/arch-$(TARGET_ARCH) 99endif 100KERNEL_HEADERS := $(KERNEL_HEADERS_COMMON) $(KERNEL_HEADERS_ARCH) 101 102TARGET_C_INCLUDES := \ 103 $(libc_root)/arch-sh/include \ 104 $(libc_root)/include \ 105 $(libstdc++_root)/include \ 106 $(KERNEL_HEADERS) \ 107 $(libm_root)/include \ 108 $(libm_root)/include/sh \ 109 $(libthread_db_root)/include 110 111TARGET_CRTBEGIN_STATIC_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtbegin_static.o 112TARGET_CRTBEGIN_DYNAMIC_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtbegin_dynamic.o 113TARGET_CRTEND_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtend_android.o 114 115TARGET_CRTBEGIN_SO_O := $(TARGET_OUT_STATIC_LIBRARIES)/sobegin.o 116TARGET_CRTEND_SO_O := $(TARGET_OUT_STATIC_LIBRARIES)/soend.o 117 118TARGET_STRIP_MODULE:=true 119 120TARGET_DEFAULT_SYSTEM_SHARED_LIBRARIES := libc libstdc++ libm 121 122TARGET_CUSTOM_LD_COMMAND := true 123define transform-o-to-shared-lib-inner 124$(hide) $(PRIVATE_CXX) \ 125 -nostdlib -Wl,-soname,$(notdir $@) -Wl,-T,$(BUILD_SYSTEM)/shlelf.xsc \ 126 -Wl,--gc-sections -Wl,-z,norelro \ 127 -Wl,-shared,-Bsymbolic \ 128 $(PRIVATE_TARGET_GLOBAL_LD_DIRS) \ 129 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_SO_O)) \ 130 $(PRIVATE_ALL_OBJECTS) \ 131 -Wl,--whole-archive \ 132 $(call normalize-target-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \ 133 -Wl,--no-whole-archive \ 134 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--start-group) \ 135 $(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \ 136 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--end-group) \ 137 $(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \ 138 -o $@ \ 139 $(PRIVATE_LDFLAGS) \ 140 $(subst -lrt,, $(subst -lpthread,,$(PRIVATE_LDLIBS))) \ 141 $(PRIVATE_TARGET_LIBGCC) \ 142 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_SO_O)) 143endef 144 145define transform-o-to-executable-inner 146$(hide) $(PRIVATE_CXX) -nostdlib -Bdynamic -Wl,-T,$(BUILD_SYSTEM)/shlelf.x \ 147 -Wl,-dynamic-linker,/system/bin/linker \ 148 -Wl,--gc-sections -Wl,-z,norelro \ 149 -Wl,-z,nocopyreloc \ 150 -o $@ \ 151 $(TARGET_GLOBAL_LD_DIRS) \ 152 -Wl,-rpath-link=$(TARGET_OUT_INTERMEDIATE_LIBRARIES) \ 153 $(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \ 154 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(TARGET_CRTBEGIN_DYNAMIC_O)) \ 155 $(PRIVATE_ALL_OBJECTS) \ 156 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--start-group) \ 157 $(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \ 158 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--end-group) \ 159 $(PRIVATE_LDFLAGS) \ 160 $(TARGET_LIBGCC) \ 161 $(subst -lrt,, $(subst -lpthread,,$(PRIVATE_LDLIBS))) \ 162 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(TARGET_CRTEND_O)) 163endef 164 165define transform-o-to-static-executable-inner 166$(hide) $(PRIVATE_CXX) -nostdlib -Bstatic -Wl,-T,$(BUILD_SYSTEM)/shlelf.x \ 167 -Wl,--gc-sections -Wl,-z,norelro \ 168 -o $@ \ 169 $(TARGET_GLOBAL_LD_DIRS) \ 170 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(TARGET_CRTBEGIN_STATIC_O)) \ 171 $(PRIVATE_LDFLAGS) \ 172 $(PRIVATE_ALL_OBJECTS) \ 173 -Wl,--start-group \ 174 $(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \ 175 -Wl,--end-group \ 176 $(TARGET_LIBGCC) \ 177 $(subst -lrt,, $(subst -lpthread,,$(PRIVATE_LDLIBS))) \ 178 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(TARGET_CRTEND_O)) 179endef 180