toolchain/toolchain-common.in

   1 # Generic toolchain options
   2
   3 # we want gdb config in the middle of both source and external
   4 # toolchains, but mconf won't let us source the same file twice,
   5 # so put it here instead
   6 source "package/gdb/Config.in.host"
   7
   8 # https://sourceware.org/bugzilla/show_bug.cgi?id=19405
   9 config BR2_TOOLCHAIN_HAS_BINUTILS_BUG_19405
  10         bool
  11
  12 config BR2_TOOLCHAIN_HAS_NATIVE_RPC
  13         bool
  14
  15 config BR2_USE_WCHAR
  16         bool
  17
  18 config BR2_ENABLE_LOCALE
  19         bool
  20
  21 config BR2_INSTALL_LIBSTDCPP
  22         bool
  23
  24 config BR2_TOOLCHAIN_HAS_FORTRAN
  25         bool
  26
  27 config BR2_TOOLCHAIN_HAS_THREADS
  28         bool
  29
  30 config BR2_TOOLCHAIN_HAS_THREADS_DEBUG
  31         bool
  32
  33 config BR2_TOOLCHAIN_HAS_THREADS_NPTL
  34         bool
  35
  36 config BR2_TOOLCHAIN_HAS_SHADOW_PASSWORDS
  37         bool
  38
  39 config BR2_TOOLCHAIN_HAS_SSP
  40         bool
  41
  42 config BR2_TOOLCHAIN_SUPPORTS_PIE
  43         bool
  44
  45 config BR2_ENABLE_LOCALE_PURGE
  46         bool "Purge unwanted locales"
  47         help
  48           Explicitly specify what locales to install on target. If N
  49           then all locales supported by packages are installed.
  50
  51 config BR2_ENABLE_LOCALE_WHITELIST
  52         string "Locales to keep"
  53         default "C en_US de fr"
  54         depends on BR2_ENABLE_LOCALE_PURGE
  55         help
  56           Whitespace seperated list of locales to allow on target.
  57           Locales not listed here will be removed from the target.
  58           See 'locale -a' on your host for a list of locales available
  59           on your build host, or have a look in /usr/share/locale in
  60           the target file system for available locales.
  61
  62           Notice that listing a locale here doesn't guarantee that it
  63           will be available on the target - That purely depends on the
  64           support for that locale in the selected packages.
  65
  66 config BR2_GENERATE_LOCALE
  67         string "Generate locale data"
  68         default ""
  69         depends on \
  70                 (BR2_TOOLCHAIN_BUILDROOT_UCLIBC && BR2_ENABLE_LOCALE) || \
  71                 BR2_TOOLCHAIN_USES_GLIBC
  72         help
  73           Generate support for a list of locales. Locales can be
  74           specified with or without encoding, when no encoding is
  75           specified, UTF-8 is assumed. Examples of locales: en_US,
  76           fr_FR.UTF-8.
  77
  78 config BR2_TOOLCHAIN_GLIBC_GCONV_LIBS_COPY
  79         bool "Copy gconv libraries"
  80         depends on BR2_TOOLCHAIN_USES_GLIBC
  81         help
  82           The gconv libraries are used to convert between different
  83           character sets (charsets).
  84
  85           Say 'y' if you need to store and/or display different charsets.
  86
  87 config BR2_TOOLCHAIN_GLIBC_GCONV_LIBS_LIST
  88         string "Gconv libraries to copy"
  89         depends on BR2_TOOLCHAIN_GLIBC_GCONV_LIBS_COPY
  90         help
  91           Set to the list of gconv libraries to copy.
  92           Leave empty to copy all gconv libraries.
  93
  94           Specify only the basename of the libraries, leave
  95           out the .so extension. Eg.:
  96             IBM850 ISO8859-15 UNICODE
  97
  98           Note: the full set of gconv libs are ~8MiB (on ARM).
  99
 100 # glibc and eglibc directly include gettext, so a separatly compiled
 101 # gettext isn't needed and shouldn't be built to avoid conflicts. Some
 102 # packages always need gettext, other packages only need gettext when
 103 # locale support is enabled. See the documentation for how packages
 104 # should rely on the following two options.
 105
 106 config BR2_NEEDS_GETTEXT
 107         bool
 108         default y if BR2_TOOLCHAIN_USES_UCLIBC
 109
 110 config BR2_NEEDS_GETTEXT_IF_LOCALE
 111         bool
 112         default y if (BR2_NEEDS_GETTEXT && BR2_ENABLE_LOCALE)
 113
 114 config BR2_USE_MMU
 115         bool "Enable MMU support" if BR2_ARCH_HAS_MMU_OPTIONAL
 116         default y if BR2_ARCH_HAS_MMU_OPTIONAL || BR2_ARCH_HAS_MMU_MANDATORY
 117         help
 118           If your target has a MMU, you should say Y here.  If you
 119           are unsure, just say Y.
 120
 121 config BR2_TARGET_OPTIMIZATION
 122         string "Target Optimizations"
 123         default ""
 124         help
 125           Optimizations to use when building for the target host.
 126           NOTE: gcc optimization level is defined in build options.
 127
 128 config BR2_TARGET_LDFLAGS
 129         string "Target linker options"
 130         help
 131           Extra options to pass to the linker when building for the target.
 132
 133           Note that options with a '$' sign (eg. -Wl,-rpath='$ORIGIN/../lib')
 134           are not supported.
 135
 136 config BR2_ECLIPSE_REGISTER
 137         bool "Register toolchain within Eclipse Buildroot plug-in"
 138         help
 139           This options tells Buildroot to generate the necessary
 140           configuration files to make your toolchain appear within
 141           Eclipse, through the Eclipse Buildroot plugin.
 142
 143 # Options for packages to depend on, if they require at least a
 144 # specific version of the kernel headers.
 145 # Toolchains should choose the adequate option (ie. the highest
 146 # version, not all of them).
 147 config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_0
 148         bool
 149
 150 config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_1
 151         bool
 152         select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_0
 153
 154 config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_2
 155         bool
 156         select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_1
 157
 158 config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_3
 159         bool
 160         select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_2
 161
 162 config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_4
 163         bool
 164         select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_3
 165
 166 config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_5
 167         bool
 168         select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_4
 169
 170 config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_6
 171         bool
 172         select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_5
 173
 174 config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_7
 175         bool
 176         select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_6
 177
 178 config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_8
 179         bool
 180         select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_7
 181
 182 config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_9
 183         bool
 184         select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_8
 185
 186 config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_10
 187         bool
 188         select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_9
 189
 190 config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_11
 191         bool
 192         select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_10
 193
 194 config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_12
 195         bool
 196         select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_11
 197
 198 config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_13
 199         bool
 200         select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_12
 201
 202 config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_14
 203         bool
 204         select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_13
 205
 206 config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_15
 207         bool
 208         select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_14
 209
 210 config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_16
 211         bool
 212         select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_15
 213
 214 config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_17
 215         bool
 216         select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_16
 217
 218 config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_18
 219         bool
 220         select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_17
 221
 222 config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_19
 223         bool
 224         select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_18
 225
 226 config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_0
 227         bool
 228         select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_19
 229
 230 config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_1
 231         bool
 232         select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_0
 233
 234 config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_2
 235         bool
 236         select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_1
 237
 238 config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_3
 239         bool
 240         select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_2
 241
 242 config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_4
 243         bool
 244         select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_3
 245
 246 config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_5
 247         bool
 248         select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_4
 249
 250 config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_6
 251         bool
 252         select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_5
 253
 254 config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_7
 255         bool
 256         select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_6
 257
 258 # This order guarantees that the highest version is set, as kconfig
 259 # stops affecting a value on the first matching default.
 260 config BR2_TOOLCHAIN_HEADERS_AT_LEAST
 261         string
 262         default "4.7"  if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_7
 263         default "4.6"  if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_6
 264         default "4.5"  if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_5
 265         default "4.4"  if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_4
 266         default "4.3"  if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_3
 267         default "4.2"  if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_2
 268         default "4.1"  if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_1
 269         default "4.0"  if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_0
 270         default "3.19" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_19
 271         default "3.18" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_18
 272         default "3.17" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_17
 273         default "3.16" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_16
 274         default "3.15" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_15
 275         default "3.14" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_14
 276         default "3.13" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_13
 277         default "3.12" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_12
 278         default "3.11" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_11
 279         default "3.10" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_10
 280         default "3.9"  if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_9
 281         default "3.8"  if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_8
 282         default "3.7"  if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_7
 283         default "3.6"  if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_6
 284         default "3.5"  if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_5
 285         default "3.4"  if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_4
 286         default "3.3"  if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_3
 287         default "3.2"  if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_2
 288         default "3.1"  if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_1
 289         default "3.0"  if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_0
 290         default "2.6"
 291
 292 config BR2_TOOLCHAIN_GCC_AT_LEAST_4_3
 293         bool
 294
 295 config BR2_TOOLCHAIN_GCC_AT_LEAST_4_4
 296         bool
 297         select BR2_TOOLCHAIN_GCC_AT_LEAST_4_3
 298
 299 config BR2_TOOLCHAIN_GCC_AT_LEAST_4_5
 300         bool
 301         select BR2_TOOLCHAIN_GCC_AT_LEAST_4_4
 302
 303 config BR2_TOOLCHAIN_GCC_AT_LEAST_4_6
 304         bool
 305         select BR2_TOOLCHAIN_GCC_AT_LEAST_4_5
 306
 307 config BR2_TOOLCHAIN_GCC_AT_LEAST_4_7
 308         bool
 309         select BR2_TOOLCHAIN_GCC_AT_LEAST_4_6
 310
 311 config BR2_TOOLCHAIN_GCC_AT_LEAST_4_8
 312         bool
 313         select BR2_TOOLCHAIN_GCC_AT_LEAST_4_7
 314
 315 config BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
 316         bool
 317         select BR2_TOOLCHAIN_GCC_AT_LEAST_4_8
 318
 319 config BR2_TOOLCHAIN_GCC_AT_LEAST_5
 320         bool
 321         select BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
 322
 323 config BR2_TOOLCHAIN_GCC_AT_LEAST_6
 324         bool
 325         select BR2_TOOLCHAIN_GCC_AT_LEAST_5
 326
 327 # This order guarantees that the highest version is set, as kconfig
 328 # stops affecting a value on the first matching default.
 329 config BR2_TOOLCHAIN_GCC_AT_LEAST
 330         string
 331         default "6"     if BR2_TOOLCHAIN_GCC_AT_LEAST_6
 332         default "5"     if BR2_TOOLCHAIN_GCC_AT_LEAST_5
 333         default "4.9"   if BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
 334         default "4.8"   if BR2_TOOLCHAIN_GCC_AT_LEAST_4_8
 335         default "4.7"   if BR2_TOOLCHAIN_GCC_AT_LEAST_4_7
 336         default "4.6"   if BR2_TOOLCHAIN_GCC_AT_LEAST_4_6
 337         default "4.5"   if BR2_TOOLCHAIN_GCC_AT_LEAST_4_5
 338         default "4.4"   if BR2_TOOLCHAIN_GCC_AT_LEAST_4_4
 339         default "4.3"   if BR2_TOOLCHAIN_GCC_AT_LEAST_4_3
 340
 341 config BR2_TOOLCHAIN_HAS_SYNC_1
 342         bool
 343         default y
 344         depends on !BR2_bfin
 345         depends on !BR2_m68k_cf
 346         depends on !BR2_microblaze
 347         depends on !BR2_sparc
 348         depends on !(BR2_arc && !BR2_ARC_ATOMIC_EXT)
 349
 350 config BR2_TOOLCHAIN_HAS_SYNC_2
 351         bool
 352         default y if BR2_TOOLCHAIN_HAS_SYNC_1
 353
 354 config BR2_TOOLCHAIN_HAS_SYNC_4
 355         bool
 356         default y
 357         depends on !BR2_m68k_cf
 358         depends on !BR2_sparc
 359         depends on !(BR2_arc && !BR2_ARC_ATOMIC_EXT)
 360
 361 # The availability of __sync for 8-byte types on ARM is somewhat
 362 # complicated:
 363 #
 364 #  - It appeared in gcc starting with gcc 4.7.
 365 #
 366 #  - On ARMv7, there is no problem, it can be directly implemented in
 367 #    userspace.
 368 #
 369 #  - On < ARMv7, it requires help from the kernel. Unfortunately, the
 370 #    libgcc code implementing 8-byte __sync with the help from the
 371 #    kernel calls __write() when a failure occurs, which is a function
 372 #    internal to glibc, not available in uClibc and musl. This means
 373 #    that the 8-byte __sync operations are not available on < ARMv7
 374 #    with uClibc and musl. This problem was fixed as part of gcc
 375 #    PR68059, which was backported to the gcc 5 branch, but isn't yet
 376 #    part of any gcc 5.x release.
 377 #
 378 config BR2_TOOLCHAIN_ARM_HAS_SYNC_8
 379         bool
 380         default y
 381         depends on BR2_arm || BR2_armeb
 382         depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_7
 383         depends on BR2_TOOLCHAIN_USES_GLIBC || BR2_ARM_CPU_ARMV7A
 384
 385 # 8-byte intrinsics available on most x86 CPUs, except a few old ones
 386 config BR2_TOOLCHAIN_X86_HAS_SYNC_8
 387         bool
 388         default y
 389         depends on BR2_i386
 390         depends on !BR2_x86_i486
 391         depends on !BR2_x86_c3
 392         depends on !BR2_x86_winchip_c6
 393         depends on !BR2_x86_winchip2
 394
 395 # 8-byte intrinsics available:
 396 #  - On all 64 bits architecture
 397 #  - On a certain combinations of ARM platforms
 398 #  - On certain x86 32 bits CPUs
 399 config BR2_TOOLCHAIN_HAS_SYNC_8
 400         bool
 401         default y if BR2_ARCH_IS_64
 402         default y if BR2_TOOLCHAIN_ARM_HAS_SYNC_8
 403         default y if BR2_TOOLCHAIN_X86_HAS_SYNC_8
 404
 405 # libatomic is available since gcc 4.8, when thread support is
 406 # enabled.
 407 config BR2_TOOLCHAIN_HAS_LIBATOMIC
 408         bool
 409         default y if BR2_TOOLCHAIN_GCC_AT_LEAST_4_8 && \
 410                 BR2_TOOLCHAIN_HAS_THREADS
 411
 412 # __atomic intrinsics are available:
 413 # - with gcc 4.8, either through built-ins or libatomic, on all
 414 #   architectures. Since we don't want to separate the cases where
 415 #   libatomic is needed vs. not needed, we simplify thing and only
 416 #   support situations where libatomic is available, even if on some
 417 #   architectures libatomic is not strictly needed as all __atomic
 418 #   intrinsics might be built-in. The only case where libatomic is
 419 #   missing entirely is when the toolchain does not have support for
 420 #   threads. However, a package that does not need threads but still
 421 #   uses atomics is quite a corner case, which does not warrant the
 422 #   added complexity.
 423 # - with gcc 4.7, libatomic did not exist, so only built-ins are
 424 #   available. This means that __atomic can only be used in a subset
 425 #   of the architectures
 426 config BR2_TOOLCHAIN_HAS_ATOMIC
 427         bool
 428         default y if BR2_TOOLCHAIN_HAS_LIBATOMIC
 429         default y if BR2_TOOLCHAIN_GCC_AT_LEAST_4_7 && BR2_arm
 430         default y if BR2_TOOLCHAIN_GCC_AT_LEAST_4_7 && BR2_armeb
 431         default y if BR2_TOOLCHAIN_GCC_AT_LEAST_4_7 && BR2_xtensa
 432         default y if BR2_TOOLCHAIN_GCC_AT_LEAST_4_7 && BR2_ARCH_IS_64
 433
 434 # - libquadmath is not needed/available on all architectures (but gcc
 435 #   correctly handles this already).
 436 # - At least, libquadmath is available on:
 437 #   - i*86
 438 #   - x86_64
 439 # - When available, libquadmath requires wchar support.
 440 config BR2_TOOLCHAIN_HAS_LIBQUADMATH
 441         bool
 442         default y if BR2_i386 || BR2_x86_64