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
  41         choice BPF_TOOLCHAIN
  42                 prompt "BPF toolchain" if DEVEL
  43                 default BPF_TOOLCHAIN_NONE
  44
  45                 config BPF_TOOLCHAIN_NONE
  46                         bool "None"
  47
  48                 config BPF_TOOLCHAIN_HOST
  49                         bool "Use host LLVM toolchain"
  50
  51                 config BPF_TOOLCHAIN_BUILD_LLVM
  52                         bool "Build LLVM toolchain for eBPF"
  53                         help
  54                           If enabled, a LLVM toolchain for building eBPF binaries will be built.
  55                           If this is not enabled, eBPF packages can only be built if the host
  56                           has a suitable toolchain
  57         endchoice
  58
  59         config BPF_TOOLCHAIN_HOST_PATH
  60                 string
  61                 depends on BPF_TOOLCHAIN_HOST
  62                 prompt "Host LLVM toolchain path (prefix)" if DEVEL
  63                 default "/usr/local/opt/llvm" if HOST_OS_MACOS
  64                 default ""
  65
  66 menuconfig EXTERNAL_TOOLCHAIN
  67         bool
  68         prompt "Use external toolchain"  if DEVEL
  69         help
  70           If enabled, the buildroot will compile using an existing toolchain instead of
  71           compiling one.
  72
  73         config NATIVE_TOOLCHAIN
  74                 bool
  75                 prompt "Use host's toolchain"  if DEVEL
  76                 depends on EXTERNAL_TOOLCHAIN
  77                 select NO_STRIP
  78                 help
  79                   If enabled, the buildroot will compile using the native toolchain for your
  80                   host instead of compiling one.
  81
  82         config TARGET_NAME
  83                 string
  84                 prompt "Target name"  if DEVEL
  85                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
  86                 default "aarch64-unknown-linux-gnu"  if aarch64
  87                 default "aarch64_be-unknown-linux-gnu"  if aarch64_be
  88                 default "arm-unknown-linux-gnu"      if arm
  89                 default "armeb-unknown-linux-gnu"    if armeb
  90                 default "i486-unknown-linux-gnu"     if i386
  91                 default "mips-unknown-linux-gnu"     if mips
  92                 default "mipsel-unknown-linux-gnu"   if mipsel
  93                 default "powerpc-unknown-linux-gnu"  if powerpc
  94                 default "x86_64-unknown-linux-gnu"   if x86_64
  95
  96         config TOOLCHAIN_PREFIX
  97                 string
  98                 prompt "Toolchain prefix"  if DEVEL
  99                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 100                 default "aarch64-unknown-linux-gnu"  if aarch64
 101                 default "aarch64_be-unknown-linux-gnu"  if aarch64_be
 102                 default "arm-unknown-linux-gnu-"      if arm
 103                 default "armeb-unknown-linux-gnu-"    if armeb
 104                 default "i486-unknown-linux-gnu-"     if i386
 105                 default "mips-unknown-linux-gnu-"     if mips
 106                 default "mipsel-unknown-linux-gnu-"   if mipsel
 107                 default "powerpc-unknown-linux-gnu-"  if powerpc
 108                 default "x86_64-unknown-linux-gnu-"   if x86_64
 109
 110         config TOOLCHAIN_ROOT
 111                 string
 112                 prompt "Toolchain root"  if DEVEL
 113                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 114                 default "/opt/cross/aarch64-unknown-linux-gnu"  if aarch64
 115                 default "/opt/cross/aarch64_be-unknown-linux-gnu"  if aarch64_be
 116                 default "/opt/cross/arm-unknown-linux-gnu"      if arm
 117                 default "/opt/cross/armeb-unknown-linux-gnu"    if armeb
 118                 default "/opt/cross/i486-unknown-linux-gnu"     if i386
 119                 default "/opt/cross/mips-unknown-linux-gnu"     if mips
 120                 default "/opt/cross/mipsel-unknown-linux-gnu"   if mipsel
 121                 default "/opt/cross/powerpc-unknown-linux-gnu"  if powerpc
 122                 default "/opt/cross/x86_64-unknown-linux-gnu"   if x86_64
 123
 124         choice TOOLCHAIN_LIBC_TYPE
 125                 prompt "Toolchain libc"  if DEVEL
 126                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 127                 default EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL
 128                 help
 129                   Specify the libc type used by the external toolchain. The given value
 130                   is passed as -m flag to all gcc and g++ invocations. This is mainly
 131                   intended for multilib toolchains which support glibc and uclibc at
 132                   the same time. If no value is specified, no -m flag is passed.
 133
 134                 config EXTERNAL_TOOLCHAIN_LIBC_USE_GLIBC
 135                         bool "glibc"
 136                         select USE_GLIBC
 137
 138                 config EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL
 139                         bool "musl"
 140                         select USE_MUSL
 141
 142         endchoice
 143
 144         config TOOLCHAIN_LIBC
 145                 string
 146                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 147                 default "glibc" if EXTERNAL_TOOLCHAIN_LIBC_USE_GLIBC
 148                 default "musl" if EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL
 149
 150         config TOOLCHAIN_BIN_PATH
 151                 string
 152                 prompt "Toolchain program path"  if DEVEL
 153                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 154                 default "./usr/bin ./bin"
 155                 help
 156                   Specify additional directories searched for toolchain binaries
 157                   (override PATH). Use ./DIR for directories relative to the root above.
 158
 159         config TOOLCHAIN_INC_PATH
 160                 string
 161                 prompt "Toolchain include path"  if DEVEL
 162                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 163                 default "./usr/include ./include"
 164                 help
 165                   Specify additional directories searched for header files (override
 166                   CPPFLAGS). Use ./DIR for directories relative to the root above.
 167
 168         config TOOLCHAIN_LIB_PATH
 169                 string
 170                 prompt "Toolchain library path"  if DEVEL
 171                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 172                 default "./usr/lib ./lib"
 173                 help
 174                   Specify additional directories searched for libraries (override LDFLAGS).
 175                   Use ./DIR for directories relative to the root above.
 176
 177 config NEED_TOOLCHAIN
 178         bool
 179         depends on DEVEL
 180         default y if !EXTERNAL_TOOLCHAIN
 181
 182 menuconfig TOOLCHAINOPTS
 183         bool "Toolchain Options"  if DEVEL
 184         depends on NEED_TOOLCHAIN
 185
 186 menuconfig EXTRA_TARGET_ARCH
 187         bool
 188         prompt "Enable an extra toolchain target architecture" if TOOLCHAINOPTS
 189         depends on !sparc
 190         default n
 191         help
 192           Some builds may require a 'biarch' toolchain. This option
 193           allows you to specify an additional target arch.
 194
 195           Most people will answer N here.
 196
 197         config EXTRA_TARGET_ARCH_NAME
 198                 string
 199                 prompt "Extra architecture name" if EXTRA_TARGET_ARCH
 200                 help
 201                   Specify the cpu name (eg powerpc64 or x86_64) of the
 202                   additional target architecture.
 203
 204         config EXTRA_TARGET_ARCH_OPTS
 205                 string
 206                 prompt "Extra architecture compiler options" if EXTRA_TARGET_ARCH
 207                 help
 208                   If you're specifying an addition target architecture,
 209                   you'll probably need to also provide options to make
 210                   the compiler use this alternate arch.
 211
 212                   For example, if you're building a compiler that can build
 213                   both powerpc and powerpc64 binaries, you'll need to
 214                   specify -m64 here.
 215
 216
 217         choice
 218                 prompt "MIPS64 user-land ABI" if TOOLCHAINOPTS && (mips64 || mips64el)
 219                 default MIPS64_ABI_N64
 220                 help
 221                    MIPS64 supports 3 different user-land ABIs: o32 (legacy),
 222                    n32 and n64.
 223
 224                 config MIPS64_ABI_N64
 225                         bool "n64"
 226
 227                 config MIPS64_ABI_N32
 228                         depends on !LIBC_USE_MUSL
 229                         bool "n32"
 230
 231                 config MIPS64_ABI_O32
 232                         bool "o32"
 233
 234         endchoice
 235
 236 comment "Binary tools"
 237         depends on TOOLCHAINOPTS
 238
 239 source "toolchain/binutils/Config.in"
 240
 241 comment "Compiler"
 242         depends on TOOLCHAINOPTS
 243
 244 source "toolchain/gcc/Config.in"
 245
 246 config NASM
 247         bool
 248         depends on ( i386 || x86_64 )
 249         prompt "Build nasm" if TOOLCHAINOPTS
 250         default y
 251         help
 252           Enable if you want to build nasm
 253
 254 comment "C Library"
 255         depends on TOOLCHAINOPTS
 256
 257 choice
 258         prompt "C Library implementation" if TOOLCHAINOPTS
 259         default LIBC_USE_GLIBC if arc
 260         default LIBC_USE_MUSL
 261         help
 262           Select the C library implementation.
 263
 264         config LIBC_USE_GLIBC
 265                 bool "Use glibc"
 266                 select USE_GLIBC
 267
 268         config LIBC_USE_MUSL
 269                 select USE_MUSL
 270                 bool "Use musl"
 271                 depends on !arc
 272
 273 endchoice
 274
 275 source "toolchain/musl/Config.in"
 276
 277 comment "Debuggers"
 278         depends on TOOLCHAINOPTS
 279
 280 config GDB
 281         bool
 282         prompt "Build gdb" if TOOLCHAINOPTS
 283         default y if !EXTERNAL_TOOLCHAIN
 284         help
 285           Enable if you want to build the gdb.
 286
 287 config GDB_PYTHON
 288         bool
 289         depends on GDB
 290         prompt "Build gdb with python binding"
 291
 292         help
 293           Enable the python bindings for GDB to allow using python in the gdb shell.
 294
 295 config USE_GLIBC
 296         default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN && (arc)
 297         bool
 298
 299 config USE_MUSL
 300         default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN && !(arc)
 301         bool
 302
 303 config SSP_SUPPORT
 304         default y if !PKG_CC_STACKPROTECTOR_NONE
 305         bool
 306
 307 config USE_EXTERNAL_LIBC
 308         bool
 309         default y if EXTERNAL_TOOLCHAIN || NATIVE_TOOLCHAIN
 310
 311 source "toolchain/binutils/Config.version"
 312 source "toolchain/gcc/Config.version"
 313
 314 config LIBC
 315         string
 316         default "glibc"   if USE_GLIBC
 317         default "musl"    if USE_MUSL
 318
 319 config TARGET_SUFFIX
 320         string
 321         default "gnueabi"         if USE_GLIBC && (arm || armeb)
 322         default "gnu"             if USE_GLIBC && !(arm || armeb)
 323         default "muslgnueabi"     if USE_MUSL && (arm || armeb)
 324         default "musl"            if USE_MUSL && !(arm || armeb)
 325
 326 config MIPS64_ABI
 327         depends on mips64 || mips64el
 328         string
 329         default "64" if MIPS64_ABI_N64
 330         default "n32" if MIPS64_ABI_N32
 331         default "32" if MIPS64_ABI_O32
 332         default "64"