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