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_MUSL
 114                         bool "musl"
 115                         select USE_MUSL
 116
 117         endchoice
 118
 119         config TOOLCHAIN_LIBC
 120                 string
 121                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 122                 default "glibc" if EXTERNAL_TOOLCHAIN_LIBC_USE_GLIBC
 123                 default "musl" if EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL
 124
 125         config TOOLCHAIN_BIN_PATH
 126                 string
 127                 prompt "Toolchain program path"  if DEVEL
 128                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 129                 default "./usr/bin ./bin"
 130                 help
 131                   Specify additional directories searched for toolchain binaries
 132                   (override PATH). Use ./DIR for directories relative to the root above.
 133
 134         config TOOLCHAIN_INC_PATH
 135                 string
 136                 prompt "Toolchain include path"  if DEVEL
 137                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 138                 default "./usr/include ./include"
 139                 help
 140                   Specify additional directories searched for header files (override
 141                   CPPFLAGS). Use ./DIR for directories relative to the root above.
 142
 143         config TOOLCHAIN_LIB_PATH
 144                 string
 145                 prompt "Toolchain library path"  if DEVEL
 146                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 147                 default "./usr/lib ./lib"
 148                 help
 149                   Specify additional directories searched for libraries (override LDFLAGS).
 150                   Use ./DIR for directories relative to the root above.
 151
 152 config NEED_TOOLCHAIN
 153         bool
 154         depends on DEVEL
 155         default y if !EXTERNAL_TOOLCHAIN
 156
 157 menuconfig TOOLCHAINOPTS
 158         bool "Toolchain Options"  if DEVEL
 159         depends on NEED_TOOLCHAIN
 160
 161 menuconfig EXTRA_TARGET_ARCH
 162         bool
 163         prompt "Enable an extra toolchain target architecture" if TOOLCHAINOPTS
 164         depends on !sparc
 165         default n
 166         help
 167           Some builds may require a 'biarch' toolchain. This option
 168           allows you to specify an additional target arch.
 169
 170           Most people will answer N here.
 171
 172         config EXTRA_TARGET_ARCH_NAME
 173                 string
 174                 prompt "Extra architecture name" if EXTRA_TARGET_ARCH
 175                 help
 176                   Specify the cpu name (eg powerpc64 or x86_64) of the
 177                   additional target architecture.
 178
 179         config EXTRA_TARGET_ARCH_OPTS
 180                 string
 181                 prompt "Extra architecture compiler options" if EXTRA_TARGET_ARCH
 182                 help
 183                   If you're specifying an addition target architecture,
 184                   you'll probably need to also provide options to make
 185                   the compiler use this alternate arch.
 186
 187                   For example, if you're building a compiler that can build
 188                   both powerpc and powerpc64 binaries, you'll need to
 189                   specify -m64 here.
 190
 191
 192         choice
 193                 prompt "MIPS64 user-land ABI" if TOOLCHAINOPTS && (mips64 || mips64el)
 194                 default MIPS64_ABI_N64
 195                 help
 196                    MIPS64 supports 3 different user-land ABIs: o32 (legacy),
 197                    n32 and n64.
 198
 199                 config MIPS64_ABI_N64
 200                         bool "n64"
 201
 202                 config MIPS64_ABI_N32
 203                         depends on !LIBC_USE_MUSL
 204                         bool "n32"
 205
 206                 config MIPS64_ABI_O32
 207                         bool "o32"
 208
 209         endchoice
 210
 211 comment "Binary tools"
 212         depends on TOOLCHAINOPTS
 213
 214 source "toolchain/binutils/Config.in"
 215
 216 comment "Compiler"
 217         depends on TOOLCHAINOPTS
 218
 219 source "toolchain/gcc/Config.in"
 220
 221 config NASM
 222         bool
 223         depends on ( i386 || x86_64 )
 224         prompt "Build nasm" if TOOLCHAINOPTS
 225         default y
 226         help
 227           Enable if you want to build nasm
 228
 229 comment "C Library"
 230         depends on TOOLCHAINOPTS
 231
 232 choice
 233         prompt "C Library implementation" if TOOLCHAINOPTS
 234         default LIBC_USE_GLIBC if arc
 235         default LIBC_USE_MUSL
 236         help
 237           Select the C library implementation.
 238
 239         config LIBC_USE_GLIBC
 240                 bool "Use glibc"
 241                 select USE_GLIBC
 242
 243         config LIBC_USE_MUSL
 244                 select USE_MUSL
 245                 bool "Use musl"
 246                 depends on !arc
 247
 248 endchoice
 249
 250 source "toolchain/musl/Config.in"
 251
 252 comment "Debuggers"
 253         depends on TOOLCHAINOPTS
 254
 255 config GDB
 256         bool
 257         prompt "Build gdb" if TOOLCHAINOPTS
 258         default y if !EXTERNAL_TOOLCHAIN
 259         help
 260           Enable if you want to build the gdb.
 261
 262 config USE_GLIBC
 263         default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN && (arc)
 264         bool
 265
 266 config USE_MUSL
 267         default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN && !(arc)
 268         bool
 269
 270 config SSP_SUPPORT
 271         default y if !PKG_CC_STACKPROTECTOR_NONE
 272         bool
 273
 274 config USE_EXTERNAL_LIBC
 275         bool
 276         default y if EXTERNAL_TOOLCHAIN || NATIVE_TOOLCHAIN
 277
 278 source "toolchain/binutils/Config.version"
 279 source "toolchain/gcc/Config.version"
 280
 281 config LIBC
 282         string
 283         default "glibc"   if USE_GLIBC
 284         default "musl"    if USE_MUSL
 285
 286 config TARGET_SUFFIX
 287         string
 288         default "gnueabi"         if USE_GLIBC && (arm || armeb)
 289         default "gnu"             if USE_GLIBC && !(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"