toolchain/Config.in

   1 # Copyright (C) 2006-2013 OpenWrt.org
   2 #
   3 # This is free software, licensed under the GNU General Public License v2.
   4 # See /LICENSE for more information.
   5 #
   6
   7 menuconfig TARGET_OPTIONS
   8         bool "Target Options"  if DEVEL
   9
  10         config TARGET_OPTIMIZATION
  11                 string "Target Optimizations" if TARGET_OPTIONS
  12                 default DEFAULT_TARGET_OPTIMIZATION
  13                 help
  14                   Optimizations to use when building for the target host.
  15
  16         config SOFT_FLOAT
  17                 bool "Use software floating point by default" if TARGET_OPTIONS
  18                 default y if !HAS_FPU
  19                 depends on arm || armeb || powerpc || mipsel || mips || mips64el || mips64
  20                 help
  21                   If your target CPU does not have a Floating Point Unit (FPU) or a
  22                   kernel FPU emulator, but you still wish to support floating point
  23                   functions, then everything will need to be compiled with soft floating
  24                   point support (-msoft-float).
  25
  26                   Most people will answer N.
  27
  28         config USE_MIPS16
  29                 bool "Build packages with MIPS16 instructions" if TARGET_OPTIONS
  30                 depends on HAS_MIPS16
  31                 default y
  32                 help
  33                   If your target CPU does support the MIPS16 instruction set
  34                   and you want to use it for packages, enable this option.
  35                   MIPS16 produces smaller binaries thus reducing pressure on
  36                   caches and TLB.
  37
  38                   Most people will answer N.
  39
  40 config BUILD_LLVM_BPF
  41         bool "Build LLVM toolchain for eBPF" if DEVEL
  42         help
  43           If enabled, a LLVM toolchain for building eBPF binaries will be built.
  44           If this is not enabled, eBPF packages can only be built if the host
  45           has a suitable toolchain
  46
  47
  48 menuconfig EXTERNAL_TOOLCHAIN
  49         bool
  50         prompt "Use external toolchain"  if DEVEL
  51         help
  52           If enabled, the buildroot will compile using an existing toolchain instead of
  53           compiling one.
  54
  55         config NATIVE_TOOLCHAIN
  56                 bool
  57                 prompt "Use host's toolchain"  if DEVEL
  58                 depends on EXTERNAL_TOOLCHAIN
  59                 select NO_STRIP
  60                 help
  61                   If enabled, the buildroot will compile using the native toolchain for your
  62                   host instead of compiling one.
  63
  64         config TARGET_NAME
  65                 string
  66                 prompt "Target name"  if DEVEL
  67                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
  68                 default "aarch64-unknown-linux-gnu"  if aarch64
  69                 default "aarch64_be-unknown-linux-gnu"  if aarch64_be
  70                 default "arm-unknown-linux-gnu"      if arm
  71                 default "armeb-unknown-linux-gnu"    if armeb
  72                 default "i486-unknown-linux-gnu"     if i386
  73                 default "mips-unknown-linux-gnu"     if mips
  74                 default "mipsel-unknown-linux-gnu"   if mipsel
  75                 default "powerpc-unknown-linux-gnu"  if powerpc
  76                 default "x86_64-unknown-linux-gnu"   if x86_64
  77
  78         config TOOLCHAIN_PREFIX
  79                 string
  80                 prompt "Toolchain prefix"  if DEVEL
  81                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
  82                 default "aarch64-unknown-linux-gnu"  if aarch64
  83                 default "aarch64_be-unknown-linux-gnu"  if aarch64_be
  84                 default "arm-unknown-linux-gnu-"      if arm
  85                 default "armeb-unknown-linux-gnu-"    if armeb
  86                 default "i486-unknown-linux-gnu-"     if i386
  87                 default "mips-unknown-linux-gnu-"     if mips
  88                 default "mipsel-unknown-linux-gnu-"   if mipsel
  89                 default "powerpc-unknown-linux-gnu-"  if powerpc
  90                 default "x86_64-unknown-linux-gnu-"   if x86_64
  91
  92         config TOOLCHAIN_ROOT
  93                 string
  94                 prompt "Toolchain root"  if DEVEL
  95                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
  96                 default "/opt/cross/aarch64-unknown-linux-gnu"  if aarch64
  97                 default "/opt/cross/aarch64_be-unknown-linux-gnu"  if aarch64_be
  98                 default "/opt/cross/arm-unknown-linux-gnu"      if arm
  99                 default "/opt/cross/armeb-unknown-linux-gnu"    if armeb
 100                 default "/opt/cross/i486-unknown-linux-gnu"     if i386
 101                 default "/opt/cross/mips-unknown-linux-gnu"     if mips
 102                 default "/opt/cross/mipsel-unknown-linux-gnu"   if mipsel
 103                 default "/opt/cross/powerpc-unknown-linux-gnu"  if powerpc
 104                 default "/opt/cross/x86_64-unknown-linux-gnu"   if x86_64
 105
 106         choice TOOLCHAIN_LIBC_TYPE
 107                 prompt "Toolchain libc"  if DEVEL
 108                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 109                 default EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL
 110                 help
 111                   Specify the libc type used by the external toolchain. The given value
 112                   is passed as -m flag to all gcc and g++ invocations. This is mainly
 113                   intended for multilib toolchains which support glibc and uclibc at
 114                   the same time. If no value is specified, no -m flag is passed.
 115
 116                 config EXTERNAL_TOOLCHAIN_LIBC_USE_GLIBC
 117                         bool "glibc"
 118                         select USE_GLIBC
 119
 120                 config EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL
 121                         bool "musl"
 122                         select USE_MUSL
 123
 124         endchoice
 125
 126         config TOOLCHAIN_LIBC
 127                 string
 128                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 129                 default "glibc" if EXTERNAL_TOOLCHAIN_LIBC_USE_GLIBC
 130                 default "musl" if EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL
 131
 132         config TOOLCHAIN_BIN_PATH
 133                 string
 134                 prompt "Toolchain program path"  if DEVEL
 135                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 136                 default "./usr/bin ./bin"
 137                 help
 138                   Specify additional directories searched for toolchain binaries
 139                   (override PATH). Use ./DIR for directories relative to the root above.
 140
 141         config TOOLCHAIN_INC_PATH
 142                 string
 143                 prompt "Toolchain include path"  if DEVEL
 144                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 145                 default "./usr/include ./include"
 146                 help
 147                   Specify additional directories searched for header files (override
 148                   CPPFLAGS). Use ./DIR for directories relative to the root above.
 149
 150         config TOOLCHAIN_LIB_PATH
 151                 string
 152                 prompt "Toolchain library path"  if DEVEL
 153                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 154                 default "./usr/lib ./lib"
 155                 help
 156                   Specify additional directories searched for libraries (override LDFLAGS).
 157                   Use ./DIR for directories relative to the root above.
 158
 159 config NEED_TOOLCHAIN
 160         bool
 161         depends on DEVEL
 162         default y if !EXTERNAL_TOOLCHAIN
 163
 164 menuconfig TOOLCHAINOPTS
 165         bool "Toolchain Options"  if DEVEL
 166         depends on NEED_TOOLCHAIN
 167
 168 menuconfig EXTRA_TARGET_ARCH
 169         bool
 170         prompt "Enable an extra toolchain target architecture" if TOOLCHAINOPTS
 171         depends on !sparc
 172         default n
 173         help
 174           Some builds may require a 'biarch' toolchain. This option
 175           allows you to specify an additional target arch.
 176
 177           Most people will answer N here.
 178
 179         config EXTRA_TARGET_ARCH_NAME
 180                 string
 181                 prompt "Extra architecture name" if EXTRA_TARGET_ARCH
 182                 help
 183                   Specify the cpu name (eg powerpc64 or x86_64) of the
 184                   additional target architecture.
 185
 186         config EXTRA_TARGET_ARCH_OPTS
 187                 string
 188                 prompt "Extra architecture compiler options" if EXTRA_TARGET_ARCH
 189                 help
 190                   If you're specifying an addition target architecture,
 191                   you'll probably need to also provide options to make
 192                   the compiler use this alternate arch.
 193
 194                   For example, if you're building a compiler that can build
 195                   both powerpc and powerpc64 binaries, you'll need to
 196                   specify -m64 here.
 197
 198
 199         choice
 200                 prompt "MIPS64 user-land ABI" if TOOLCHAINOPTS && (mips64 || mips64el)
 201                 default MIPS64_ABI_N64
 202                 help
 203                    MIPS64 supports 3 different user-land ABIs: o32 (legacy),
 204                    n32 and n64.
 205
 206                 config MIPS64_ABI_N64
 207                         bool "n64"
 208
 209                 config MIPS64_ABI_N32
 210                         depends on !LIBC_USE_MUSL
 211                         bool "n32"
 212
 213                 config MIPS64_ABI_O32
 214                         bool "o32"
 215
 216         endchoice
 217
 218 comment "Binary tools"
 219         depends on TOOLCHAINOPTS
 220
 221 source "toolchain/binutils/Config.in"
 222
 223 comment "Compiler"
 224         depends on TOOLCHAINOPTS
 225
 226 source "toolchain/gcc/Config.in"
 227
 228 config NASM
 229         bool
 230         depends on ( i386 || x86_64 )
 231         prompt "Build nasm" if TOOLCHAINOPTS
 232         default y
 233         help
 234           Enable if you want to build nasm
 235
 236 comment "C Library"
 237         depends on TOOLCHAINOPTS
 238
 239 choice
 240         prompt "C Library implementation" if TOOLCHAINOPTS
 241         default LIBC_USE_GLIBC if arc
 242         default LIBC_USE_MUSL
 243         help
 244           Select the C library implementation.
 245
 246         config LIBC_USE_GLIBC
 247                 bool "Use glibc"
 248                 select USE_GLIBC
 249
 250         config LIBC_USE_MUSL
 251                 select USE_MUSL
 252                 bool "Use musl"
 253                 depends on !arc
 254
 255 endchoice
 256
 257 source "toolchain/musl/Config.in"
 258
 259 comment "Debuggers"
 260         depends on TOOLCHAINOPTS
 261
 262 config GDB
 263         bool
 264         prompt "Build gdb" if TOOLCHAINOPTS
 265         default y if !EXTERNAL_TOOLCHAIN
 266         help
 267           Enable if you want to build the gdb.
 268
 269 config GDB_PYTHON
 270         bool
 271         depends on GDB
 272         prompt "Build gdb with python binding"
 273
 274         help
 275           Enable the python bindings for GDB to allow using python in the gdb shell.
 276
 277 config USE_GLIBC
 278         default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN && (arc)
 279         bool
 280
 281 config USE_MUSL
 282         default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN && !(arc)
 283         bool
 284
 285 config SSP_SUPPORT
 286         default y if !PKG_CC_STACKPROTECTOR_NONE
 287         bool
 288
 289 config USE_EXTERNAL_LIBC
 290         bool
 291         default y if EXTERNAL_TOOLCHAIN || NATIVE_TOOLCHAIN
 292
 293 source "toolchain/binutils/Config.version"
 294 source "toolchain/gcc/Config.version"
 295
 296 config LIBC
 297         string
 298         default "glibc"   if USE_GLIBC
 299         default "musl"    if USE_MUSL
 300
 301 config TARGET_SUFFIX
 302         string
 303         default "gnueabi"         if USE_GLIBC && (arm || armeb)
 304         default "gnu"             if USE_GLIBC && !(arm || armeb)
 305         default "muslgnueabi"     if USE_MUSL && (arm || armeb)
 306         default "musl"            if USE_MUSL && !(arm || armeb)
 307
 308 config MIPS64_ABI
 309         depends on mips64 || mips64el
 310         string
 311         default "64" if MIPS64_ABI_N64
 312         default "n32" if MIPS64_ABI_N32
 313         default "32" if MIPS64_ABI_O32
 314         default "64"