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