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