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