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                 depends on !GCC_VERSION_4_6
  32                 default y
  33                 help
  34                   If your target CPU does support the MIPS16 instruction set
  35                   and you want to use it for packages, enable this option.
  36                   MIPS16 produces smaller binaries thus reducing pressure on
  37                   caches and TLB.
  38
  39                   Most people will answer N.
  40
  41
  42 menuconfig EXTERNAL_TOOLCHAIN
  43         bool
  44         prompt "Use external toolchain"  if DEVEL
  45         help
  46           If enabled, OpenWrt will compile using an existing toolchain instead of
  47           compiling one.
  48
  49         config NATIVE_TOOLCHAIN
  50                 bool
  51                 prompt "Use host's toolchain"  if DEVEL
  52                 depends on EXTERNAL_TOOLCHAIN
  53                 select NO_STRIP
  54                 help
  55                   If enabled, OpenWrt will compile using the native toolchain for your
  56                   host instead of compiling one.
  57
  58         config TARGET_NAME
  59                 string
  60                 prompt "Target name"  if DEVEL
  61                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
  62                 default "aarch64-unknown-linux-gnu"  if aarch64
  63                 default "aarch64_be-unknown-linux-gnu"  if aarch64_be
  64                 default "arm-unknown-linux-gnu"      if arm
  65                 default "armeb-unknown-linux-gnu"    if armeb
  66                 default "i486-unknown-linux-gnu"     if i386
  67                 default "mips-unknown-linux-gnu"     if mips
  68                 default "mipsel-unknown-linux-gnu"   if mipsel
  69                 default "powerpc-unknown-linux-gnu"  if powerpc
  70                 default "x86_64-unknown-linux-gnu"   if x86_64
  71
  72         config TOOLCHAIN_PREFIX
  73                 string
  74                 prompt "Toolchain prefix"  if DEVEL
  75                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
  76                 default "aarch64-unknown-linux-gnu"  if aarch64
  77                 default "aarch64_be-unknown-linux-gnu"  if aarch64_be
  78                 default "arm-unknown-linux-gnu-"      if arm
  79                 default "armeb-unknown-linux-gnu-"    if armeb
  80                 default "i486-unknown-linux-gnu-"     if i386
  81                 default "mips-unknown-linux-gnu-"     if mips
  82                 default "mipsel-unknown-linux-gnu-"   if mipsel
  83                 default "powerpc-unknown-linux-gnu-"  if powerpc
  84                 default "x86_64-unknown-linux-gnu-"   if x86_64
  85
  86         config TOOLCHAIN_ROOT
  87                 string
  88                 prompt "Toolchain root"  if DEVEL
  89                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
  90                 default "/opt/cross/aarch64-unknown-linux-gnu"  if aarch64
  91                 default "/opt/cross/aarch64_be-unknown-linux-gnu"  if aarch64_be
  92                 default "/opt/cross/arm-unknown-linux-gnu"      if arm
  93                 default "/opt/cross/armeb-unknown-linux-gnu"    if armeb
  94                 default "/opt/cross/i486-unknown-linux-gnu"     if i386
  95                 default "/opt/cross/mips-unknown-linux-gnu"     if mips
  96                 default "/opt/cross/mipsel-unknown-linux-gnu"   if mipsel
  97                 default "/opt/cross/powerpc-unknown-linux-gnu"  if powerpc
  98                 default "/opt/cross/x86_64-unknown-linux-gnu"   if x86_64
  99
 100         config TOOLCHAIN_LIBC
 101                 string
 102                 prompt "Toolchain libc"  if DEVEL
 103                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 104                 default "uclibc"
 105                 help
 106                   Specify the libc type used by the external toolchain. The given value
 107                   is passed as -m flag to all gcc and g++ invocations. This is mainly
 108                   intended for multilib toolchains which support glibc and uclibc at
 109                   the same time. If no value is specified, no -m flag is passed.
 110
 111         config TOOLCHAIN_BIN_PATH
 112                 string
 113                 prompt "Toolchain program path"  if DEVEL
 114                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 115                 default "./usr/bin ./bin"
 116                 help
 117                   Specify additional directories searched for toolchain binaries
 118                   (override PATH). Use ./DIR for directories relative to the root above.
 119
 120         config TOOLCHAIN_INC_PATH
 121                 string
 122                 prompt "Toolchain include path"  if DEVEL
 123                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 124                 default "./usr/include ./include"
 125                 help
 126                   Specify additional directories searched for header files (override
 127                   CPPFLAGS). Use ./DIR for directories relative to the root above.
 128
 129         config TOOLCHAIN_LIB_PATH
 130                 string
 131                 prompt "Toolchain library path"  if DEVEL
 132                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 133                 default "./usr/lib ./lib"
 134                 help
 135                   Specify additional directories searched for libraries (override LDFLAGS).
 136                   Use ./DIR for directories relative to the root above.
 137
 138 config NEED_TOOLCHAIN
 139         bool
 140         depends on DEVEL
 141         default y if !EXTERNAL_TOOLCHAIN
 142
 143 menuconfig TOOLCHAINOPTS
 144         bool "Toolchain Options"  if DEVEL
 145         depends on NEED_TOOLCHAIN
 146
 147 menuconfig EXTRA_TARGET_ARCH
 148         bool
 149         prompt "Enable an extra toolchain target architecture" if TOOLCHAINOPTS
 150         depends on !sparc
 151         default y       if powerpc64
 152         default n
 153         help
 154           Some builds may require a 'biarch' toolchain. This option
 155           allows you to specify an additional target arch.
 156
 157           Most people will answer N here.
 158
 159         config EXTRA_TARGET_ARCH_NAME
 160                 string
 161                 default "powerpc64"     if powerpc64
 162                 prompt "Extra architecture name" if EXTRA_TARGET_ARCH
 163                 help
 164                   Specify the cpu name (eg powerpc64 or x86_64) of the
 165                   additional target architecture.
 166
 167         config EXTRA_TARGET_ARCH_OPTS
 168                 string
 169                 default "-m64"          if powerpc64
 170                 prompt "Extra architecture compiler options" if EXTRA_TARGET_ARCH
 171                 help
 172                   If you're specifying an addition target architecture,
 173                   you'll probably need to also provide options to make
 174                   the compiler use this alternate arch.
 175
 176                   For example, if you're building a compiler that can build
 177                   both powerpc and powerpc64 binaries, you'll need to
 178                   specify -m64 here.
 179
 180
 181         choice
 182                 prompt "MIPS64 user-land ABI" if TOOLCHAINOPTS && (mips64 || mips64el)
 183                 default MIPS64_ABI_N64
 184                 help
 185                    MIPS64 supports 3 different user-land ABIs: o32 (legacy),
 186                    n32 and n64.
 187
 188                 config MIPS64_ABI_N64
 189                         bool "n64"
 190
 191                 config MIPS64_ABI_N32
 192                         bool "n32"
 193
 194                 config MIPS64_ABI_O32
 195                         bool "o32"
 196
 197         endchoice
 198
 199 comment "Binary tools"
 200         depends on TOOLCHAINOPTS
 201
 202 source "toolchain/binutils/Config.in"
 203
 204 comment "Compiler"
 205         depends on TOOLCHAINOPTS
 206
 207 source "toolchain/gcc/Config.in"
 208
 209 comment "C Library"
 210         depends on TOOLCHAINOPTS
 211
 212 choice
 213         prompt "C Library implementation" if TOOLCHAINOPTS
 214         default LIBC_USE_EGLIBC if (aarch64 || aarch64_be)
 215         default LIBC_USE_UCLIBC
 216         help
 217           Select the C library implementation.
 218
 219         config LIBC_USE_EGLIBC
 220                 bool "Use eglibc"
 221                 select USE_EGLIBC
 222                 depends on !avr32
 223
 224         config LIBC_USE_UCLIBC
 225                 select USE_UCLIBC
 226                 bool "Use uClibc"
 227                 depends on !(aarch64 || aarch64_be)
 228
 229         config LIBC_USE_MUSL
 230                 select USE_MUSL
 231                 bool "Use musl"
 232                 depends on !(mips64 || mips64el || aarch64 || aarch64_be)
 233
 234 endchoice
 235
 236 source "toolchain/eglibc/Config.in"
 237 source "toolchain/uClibc/Config.in"
 238 source "toolchain/musl/Config.in"
 239
 240 comment "Debuggers"
 241         depends on TOOLCHAINOPTS
 242
 243 config GDB
 244         bool
 245         depends on !(avr32 || aarch64 || aarch64_be)
 246         prompt "Build gdb" if TOOLCHAINOPTS
 247         default y if !EXTERNAL_TOOLCHAIN
 248         help
 249           Enable if you want to build the gdb.
 250
 251 config INSIGHT
 252         bool
 253         prompt "Build insight-gdb" if TOOLCHAINOPTS
 254         select GDB
 255         default n
 256         help
 257           Enable if you want to build insight-gdb.
 258
 259 config USE_EGLIBC
 260         bool
 261         default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN && (aarch64 || aarch64_be || octeon)
 262
 263 config USE_UCLIBC
 264         bool
 265         default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN && !(aarch64 || aarch64_be || octeon)
 266
 267 config USE_MUSL
 268         bool
 269
 270 config USE_EXTERNAL_LIBC
 271         bool
 272         default y if EXTERNAL_TOOLCHAIN || NATIVE_TOOLCHAIN
 273
 274 source "toolchain/gcc/Config.version"
 275
 276 source "toolchain/eglibc/Config.version"
 277 source "toolchain/uClibc/Config.version"
 278 source "toolchain/musl/Config.version"
 279
 280 config LIBC
 281         string
 282         default "eglibc"  if USE_EGLIBC
 283         default "uClibc"  if USE_UCLIBC
 284         default "musl"    if USE_MUSL
 285
 286 config LIBC_VERSION
 287         string
 288         default EGLIBC_VERSION  if USE_EGLIBC
 289         default UCLIBC_VERSION  if USE_UCLIBC
 290         default MUSL_VERSION    if USE_MUSL
 291
 292 config TARGET_SUFFIX
 293         string
 294         default "gnueabi"         if USE_EGLIBC && (arm || armeb)
 295         default "gnu"             if USE_EGLIBC && !(arm || armeb)
 296         default "uclibcgnueabi"   if USE_UCLIBC && (arm || armeb)
 297         default "uclibc"          if USE_UCLIBC && !(arm || armeb)
 298         default "muslgnueabi"     if USE_MUSL && (arm || armeb)
 299         default "musl"            if USE_MUSL && !(arm || armeb)
 300
 301 config MIPS64_ABI
 302         depends on mips64 || mips64el
 303         string
 304         default "64" if MIPS64_ABI_N64
 305         default "n32" if MIPS64_ABI_N32
 306         default "32" if MIPS64_ABI_O32
 307         default "64"