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         choice BPF_TOOLCHAIN
  42                 prompt "BPF toolchain" if DEVEL
  43                 default BPF_TOOLCHAIN_BUILD_LLVM if BUILDBOT
  44                 default BPF_TOOLCHAIN_PREBUILT if HAS_PREBUILT_LLVM_TOOLCHAIN
  45                 default BPF_TOOLCHAIN_NONE
  46
  47                 config BPF_TOOLCHAIN_NONE
  48                         bool "None"
  49
  50                 config BPF_TOOLCHAIN_PREBUILT
  51                         bool "Use prebuilt LLVM toolchain"
  52                         depends on HAS_PREBUILT_LLVM_TOOLCHAIN
  53                         select USE_LLVM_PREBUILT
  54
  55                 config BPF_TOOLCHAIN_HOST
  56                         select USE_LLVM_HOST
  57                         bool "Use host LLVM toolchain"
  58
  59                 config BPF_TOOLCHAIN_BUILD_LLVM
  60                         select USE_LLVM_BUILD
  61                         bool "Build LLVM toolchain for eBPF"
  62                         help
  63                           If enabled, a LLVM toolchain for building eBPF binaries will be built.
  64                           If this is not enabled, eBPF packages can only be built if the host
  65                           has a suitable toolchain
  66         endchoice
  67
  68         config BPF_TOOLCHAIN_HOST_PATH
  69                 string
  70                 depends on BPF_TOOLCHAIN_HOST
  71                 prompt "Host LLVM toolchain path (prefix)" if DEVEL
  72                 default "/usr/local/opt/llvm" if HOST_OS_MACOS
  73                 default ""
  74
  75 menuconfig EXTERNAL_TOOLCHAIN
  76         bool
  77         prompt "Use external toolchain"  if DEVEL
  78         help
  79           If enabled, the buildroot will compile using an existing toolchain instead of
  80           compiling one.
  81
  82         config NATIVE_TOOLCHAIN
  83                 bool
  84                 prompt "Use host's toolchain"  if DEVEL
  85                 depends on EXTERNAL_TOOLCHAIN
  86                 select NO_STRIP
  87                 help
  88                   If enabled, the buildroot will compile using the native toolchain for your
  89                   host instead of compiling one.
  90
  91         config TARGET_NAME
  92                 string
  93                 prompt "Target name"  if DEVEL
  94                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
  95                 default "aarch64-unknown-linux-gnu"  if aarch64
  96                 default "aarch64_be-unknown-linux-gnu"  if aarch64_be
  97                 default "arm-unknown-linux-gnu"      if arm
  98                 default "armeb-unknown-linux-gnu"    if armeb
  99                 default "i486-unknown-linux-gnu"     if i386
 100                 default "loongarch64-unknown-linux-gnu" if loongarch64
 101                 default "mips-unknown-linux-gnu"     if mips
 102                 default "mipsel-unknown-linux-gnu"   if mipsel
 103                 default "powerpc-unknown-linux-gnu"  if powerpc
 104                 default "x86_64-unknown-linux-gnu"   if x86_64
 105
 106         config TOOLCHAIN_PREFIX
 107                 string
 108                 prompt "Toolchain prefix"  if DEVEL
 109                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 110                 default "aarch64-unknown-linux-gnu"  if aarch64
 111                 default "aarch64_be-unknown-linux-gnu"  if aarch64_be
 112                 default "arm-unknown-linux-gnu-"      if arm
 113                 default "armeb-unknown-linux-gnu-"    if armeb
 114                 default "i486-unknown-linux-gnu-"     if i386
 115                 default "loongarch64-unknown-linux-gnu-" if loongarch64
 116                 default "mips-unknown-linux-gnu-"     if mips
 117                 default "mipsel-unknown-linux-gnu-"   if mipsel
 118                 default "powerpc-unknown-linux-gnu-"  if powerpc
 119                 default "x86_64-unknown-linux-gnu-"   if x86_64
 120
 121         config TOOLCHAIN_ROOT
 122                 string
 123                 prompt "Toolchain root"  if DEVEL
 124                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 125                 default "/opt/cross/aarch64-unknown-linux-gnu"  if aarch64
 126                 default "/opt/cross/aarch64_be-unknown-linux-gnu"  if aarch64_be
 127                 default "/opt/cross/arm-unknown-linux-gnu"      if arm
 128                 default "/opt/cross/armeb-unknown-linux-gnu"    if armeb
 129                 default "/opt/cross/i486-unknown-linux-gnu"     if i386
 130                 default "/opt/cross/loongarch64-unknown-linux-gnu" if loongarch64
 131                 default "/opt/cross/mips-unknown-linux-gnu"     if mips
 132                 default "/opt/cross/mipsel-unknown-linux-gnu"   if mipsel
 133                 default "/opt/cross/powerpc-unknown-linux-gnu"  if powerpc
 134                 default "/opt/cross/x86_64-unknown-linux-gnu"   if x86_64
 135
 136         choice TOOLCHAIN_LIBC_TYPE
 137                 prompt "Toolchain libc"  if DEVEL
 138                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 139                 default EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL
 140                 help
 141                   Specify the libc type used by the external toolchain. The given value
 142                   is passed as -m flag to all gcc and g++ invocations. This is mainly
 143                   intended for multilib toolchains which support glibc and uclibc at
 144                   the same time. If no value is specified, no -m flag is passed.
 145
 146                 config EXTERNAL_TOOLCHAIN_LIBC_USE_GLIBC
 147                         bool "glibc"
 148                         select USE_GLIBC
 149
 150                 config EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL
 151                         bool "musl"
 152                         select USE_MUSL
 153
 154         endchoice
 155
 156         config EXTERNAL_GCC_VERSION
 157                 string
 158                 prompt "External Toolchain GCC Version" if DEVEL
 159                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 160                 help
 161                   Manually specify the GCC version used by the selected
 162                   external toolchain.
 163
 164         config TOOLCHAIN_LIBC
 165                 string
 166                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 167                 default "glibc" if EXTERNAL_TOOLCHAIN_LIBC_USE_GLIBC
 168                 default "musl" if EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL
 169
 170         config TOOLCHAIN_BIN_PATH
 171                 string
 172                 prompt "Toolchain program path"  if DEVEL
 173                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 174                 default "./usr/bin ./bin"
 175                 help
 176                   Specify additional directories searched for toolchain binaries
 177                   (override PATH). Use ./DIR for directories relative to the root above.
 178
 179         config TOOLCHAIN_INC_PATH
 180                 string
 181                 prompt "Toolchain include path"  if DEVEL
 182                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 183                 default "./usr/include ./include/fortify ./include" if EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL
 184                 default "./usr/include ./include"
 185                 help
 186                   Specify additional directories searched for header files (override
 187                   CPPFLAGS). Use ./DIR for directories relative to the root above.
 188
 189         config TOOLCHAIN_LIB_PATH
 190                 string
 191                 prompt "Toolchain library path"  if DEVEL
 192                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 193                 default "./usr/lib ./lib"
 194                 help
 195                   Specify additional directories searched for libraries (override LDFLAGS).
 196                   Use ./DIR for directories relative to the root above.
 197
 198 config NEED_TOOLCHAIN
 199         bool
 200         depends on DEVEL
 201         default y if !EXTERNAL_TOOLCHAIN
 202
 203 menuconfig TOOLCHAINOPTS
 204         bool "Toolchain Options"  if DEVEL
 205         depends on NEED_TOOLCHAIN
 206
 207 menuconfig EXTRA_TARGET_ARCH
 208         bool
 209         prompt "Enable an extra toolchain target architecture" if TOOLCHAINOPTS
 210         depends on !sparc
 211         help
 212           Some builds may require a 'biarch' toolchain. This option
 213           allows you to specify an additional target arch.
 214
 215           Most people will answer N here.
 216
 217         config EXTRA_TARGET_ARCH_NAME
 218                 string
 219                 prompt "Extra architecture name" if EXTRA_TARGET_ARCH
 220                 help
 221                   Specify the cpu name (eg powerpc64 or x86_64) of the
 222                   additional target architecture.
 223
 224         config EXTRA_TARGET_ARCH_OPTS
 225                 string
 226                 prompt "Extra architecture compiler options" if EXTRA_TARGET_ARCH
 227                 help
 228                   If you're specifying an addition target architecture,
 229                   you'll probably need to also provide options to make
 230                   the compiler use this alternate arch.
 231
 232                   For example, if you're building a compiler that can build
 233                   both powerpc and powerpc64 binaries, you'll need to
 234                   specify -m64 here.
 235
 236
 237         choice
 238                 prompt "MIPS64 user-land ABI" if TOOLCHAINOPTS && (mips64 || mips64el)
 239                 default MIPS64_ABI_N64
 240                 help
 241                    MIPS64 supports 3 different user-land ABIs: o32 (legacy),
 242                    n32 and n64.
 243
 244                 config MIPS64_ABI_N64
 245                         bool "n64"
 246
 247                 config MIPS64_ABI_N32
 248                         depends on !LIBC_USE_MUSL
 249                         bool "n32"
 250
 251                 config MIPS64_ABI_O32
 252                         bool "o32"
 253
 254         endchoice
 255
 256 comment "Binary tools"
 257         depends on TOOLCHAINOPTS
 258
 259 source "toolchain/binutils/Config.in"
 260
 261 config DWARVES
 262         bool
 263         prompt "Build pahole" if TOOLCHAINOPTS
 264         depends on !HOST_OS_MACOS
 265         help
 266           Enable if you want to build pahole and the dwarves tools.
 267
 268 comment "Compiler"
 269         depends on TOOLCHAINOPTS
 270
 271 source "toolchain/gcc/Config.in"
 272
 273 config NASM
 274         bool
 275         depends on ( i386 || x86_64 )
 276         prompt "Build nasm" if TOOLCHAINOPTS
 277         default y
 278         help
 279           Enable if you want to build nasm
 280
 281 comment "C Library"
 282         depends on TOOLCHAINOPTS
 283
 284 choice
 285         prompt "C Library implementation" if TOOLCHAINOPTS
 286         default LIBC_USE_GLIBC if arc
 287         default LIBC_USE_MUSL
 288         help
 289           Select the C library implementation.
 290
 291         config LIBC_USE_GLIBC
 292                 bool "Use glibc"
 293                 select USE_GLIBC
 294
 295         config LIBC_USE_MUSL
 296                 select USE_MUSL
 297                 bool "Use musl"
 298                 depends on !arc
 299
 300 endchoice
 301
 302 source "toolchain/musl/Config.in"
 303
 304 comment "Debuggers"
 305         depends on TOOLCHAINOPTS
 306
 307 config GDB
 308         bool
 309         prompt "Build gdb" if TOOLCHAINOPTS
 310         default y if !EXTERNAL_TOOLCHAIN
 311         help
 312           Enable if you want to build the gdb.
 313
 314 config GDB_PYTHON
 315         bool
 316         depends on GDB
 317         prompt "Build gdb with python binding"
 318
 319         help
 320           Enable the python bindings for GDB to allow using python in the gdb shell.
 321
 322 config HAS_BPF_TOOLCHAIN
 323         bool
 324
 325 config HAS_PREBUILT_LLVM_TOOLCHAIN
 326         def_bool $(shell, [ -f llvm-bpf/.llvm-version ] && echo y || echo n)
 327
 328 config USE_LLVM_HOST
 329         select HAS_BPF_TOOLCHAIN
 330         bool
 331
 332 config USE_LLVM_PREBUILT
 333         select HAS_BPF_TOOLCHAIN
 334         default y if !DEVEL && !BUILDBOT && HAS_PREBUILT_LLVM_TOOLCHAIN
 335         bool
 336
 337 config USE_LLVM_BUILD
 338         default y if !DEVEL && BUILDBOT
 339         select HAS_BPF_TOOLCHAIN
 340         bool
 341
 342 config USE_GLIBC
 343         default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN && (arc)
 344         bool
 345
 346 config USE_MUSL
 347         default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN && !(arc)
 348         bool
 349
 350 config SSP_SUPPORT
 351         default y if !PKG_CC_STACKPROTECTOR_NONE
 352         bool
 353
 354 config USE_EXTERNAL_LIBC
 355         bool
 356         default y if EXTERNAL_TOOLCHAIN || NATIVE_TOOLCHAIN
 357
 358 source "toolchain/binutils/Config.version"
 359 source "toolchain/gcc/Config.version"
 360
 361 config LIBC
 362         string
 363         default "glibc"   if USE_GLIBC
 364         default "musl"    if USE_MUSL
 365
 366 config TARGET_SUFFIX
 367         string
 368         default "gnueabi"         if USE_GLIBC && (arm || armeb)
 369         default "gnu"             if USE_GLIBC && !(arm || armeb)
 370         default "muslgnueabi"     if USE_MUSL && (arm || armeb)
 371         default "musl"            if USE_MUSL && !(arm || armeb)
 372
 373 config MIPS64_ABI
 374         depends on mips64 || mips64el
 375         string
 376         default "64" if MIPS64_ABI_N64
 377         default "n32" if MIPS64_ABI_N32
 378         default "32" if MIPS64_ABI_O32
 379         default "64"