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