| menu "Toolchain" |
| |
| # Invisible option that makes sure the toolchain package always gets |
| # built |
| config BR2_TOOLCHAIN |
| bool |
| default y |
| |
| # Should be selected for glibc or eglibc |
| config BR2_TOOLCHAIN_USES_GLIBC |
| bool |
| select BR2_USE_WCHAR |
| select BR2_ENABLE_LOCALE |
| select BR2_TOOLCHAIN_HAS_FULL_GETTEXT |
| select BR2_TOOLCHAIN_HAS_THREADS |
| select BR2_TOOLCHAIN_HAS_THREADS_DEBUG |
| select BR2_TOOLCHAIN_HAS_THREADS_NPTL |
| select BR2_TOOLCHAIN_HAS_UCONTEXT |
| select BR2_TOOLCHAIN_SUPPORTS_PIE |
| |
| config BR2_TOOLCHAIN_USES_UCLIBC |
| bool |
| # ucontext is only available for a subset of the supported |
| # architectures |
| select BR2_TOOLCHAIN_HAS_UCONTEXT if BR2_ARM_CPU_HAS_ARM || BR2_i386 \ |
| || BR2_mips || BR2_mipsel || BR2_mips64 || BR2_mips64el \ |
| || BR2_sparc || BR2_x86_64 |
| select BR2_TOOLCHAIN_SUPPORTS_PIE if !BR2_m68k && !BR2_microblaze && !BR2_STATIC_LIBS |
| |
| config BR2_TOOLCHAIN_USES_MUSL |
| bool |
| select BR2_USE_WCHAR |
| select BR2_ENABLE_LOCALE |
| select BR2_TOOLCHAIN_HAS_THREADS |
| select BR2_TOOLCHAIN_HAS_THREADS_DEBUG |
| select BR2_TOOLCHAIN_HAS_THREADS_NPTL |
| select BR2_TOOLCHAIN_SUPPORTS_PIE if !BR2_STATIC_LIBS |
| |
| choice |
| prompt "Toolchain type" |
| help |
| Select whether to use the toolchain provided by buildroot |
| or an external toolchain. |
| |
| Some vendors provide toolchains in binary form, some in |
| source form. |
| |
| config BR2_TOOLCHAIN_BUILDROOT |
| bool "Buildroot toolchain" |
| depends on BR2_ARCH_HAS_TOOLCHAIN_BUILDROOT |
| |
| config BR2_TOOLCHAIN_EXTERNAL |
| bool "External toolchain" |
| help |
| Select if you want to use an existing cross-compiling |
| toolchain. Buildroot can either download automatically a |
| toolchain, or use an already installed toolchain. |
| |
| endchoice |
| |
| source "toolchain/toolchain-buildroot/Config.in" |
| source "toolchain/toolchain-external/Config.in" |
| |
| # Generic toolchain options |
| |
| # we want gdb config in the middle of both source and external |
| # toolchains, but mconf won't let us source the same file twice, |
| # so put it here instead |
| source "package/gdb/Config.in.host" |
| |
| comment "Toolchain Generic Options" |
| |
| # https://sourceware.org/bugzilla/show_bug.cgi?id=30730 |
| # Affect toolchains built with binutils 2.40, still not fixed. |
| config BR2_TOOLCHAIN_HAS_BINUTILS_BUG_30730 |
| bool |
| default y if BR2_m68k_cf |
| |
| # Atomic types can be: |
| # - never lock-free |
| # - sometimes lock-free |
| # - always lock-free |
| # see https://en.cppreference.com/w/c/atomic/ATOMIC_LOCK_FREE_consts |
| # |
| # On most architectures, gcc provides "always lock-free" atomic types, |
| # but a few architectures are limited to "sometimes lock-free" |
| # types. This hidden option allows to know if the architecture |
| # provides "always lock-free" atomic types. |
| config BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS |
| bool |
| default y |
| depends on !BR2_nios2 |
| depends on !BR2_ARM_CPU_ARMV4 |
| depends on !BR2_ARM_CPU_ARMV5 |
| depends on !BR2_sparc_v8 |
| depends on !BR2_m68k_cf5208 |
| depends on !(BR2_arc && !BR2_ARC_ATOMIC_EXT) |
| |
| # GCC uses thunk functions to adjust the 'this' pointer when calling |
| # C++ member functions in classes derived with multiple inheritance. |
| # Generation of thunk functions requires support from the compiler |
| # back end. In the absence of that support target-independent code |
| # in the C++ front end is used to generate thunk functions, but it |
| # does not support vararg functions. |
| # or1k will support it in the gcc mainline starting with gcc-9. |
| config BR2_TOOLCHAIN_SUPPORTS_VARIADIC_MI_THUNK |
| bool |
| default y |
| depends on !BR2_or1k |
| depends on !BR2_xtensa |
| |
| # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43744. This bug |
| # reappeared on gcc 9.x and is still not fixed on gcc 11.x |
| config BR2_TOOLCHAIN_HAS_GCC_BUG_43744 |
| bool |
| default y if !BR2_TOOLCHAIN_GCC_AT_LEAST_8 |
| default y if BR2_TOOLCHAIN_GCC_AT_LEAST_9 |
| depends on BR2_sh |
| |
| # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63261. This bug no |
| # longer exists in gcc 8.x. |
| config BR2_TOOLCHAIN_HAS_GCC_BUG_63261 |
| bool |
| default y if BR2_microblaze |
| depends on !BR2_TOOLCHAIN_GCC_AT_LEAST_8 |
| |
| # Prior to gcc 7.x, exception_ptr, nested_exception and future from |
| # libstdc++ would only be provided on architectures that support |
| # always lock-free atomic ints. See |
| # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64735. This issue has |
| # been removed in GCC 7.x, where exception propagation is now |
| # supported without lock-free atomic int. |
| config BR2_TOOLCHAIN_HAS_GCC_BUG_64735 |
| bool |
| default y if !BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS && \ |
| !BR2_TOOLCHAIN_GCC_AT_LEAST_7 |
| |
| # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68485. This bug still |
| # exists in gcc 12.x |
| config BR2_TOOLCHAIN_HAS_GCC_BUG_68485 |
| bool |
| default y if BR2_microblaze |
| |
| # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81426 |
| config BR2_TOOLCHAIN_HAS_GCC_BUG_81426 |
| bool |
| default y if BR2_sh |
| |
| # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83143 |
| # Error: invalid operands (*UND* and .text sections) for `-' on sh4. |
| # This bug no longer exists in gcc 10.x but reappeared on gcc 11.x and |
| # it still not been fixed yet. |
| config BR2_TOOLCHAIN_HAS_GCC_BUG_83143 |
| bool |
| default y if !BR2_TOOLCHAIN_GCC_AT_LEAST_10 |
| default y if BR2_TOOLCHAIN_GCC_AT_LEAST_11 |
| depends on BR2_sh |
| |
| # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85180. This bug no |
| # longer exists in gcc 8.x. |
| config BR2_TOOLCHAIN_HAS_GCC_BUG_85180 |
| bool |
| default y if BR2_microblaze |
| depends on !BR2_TOOLCHAIN_GCC_AT_LEAST_8 |
| |
| # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85862 |
| # An infinite loop exists in the find_base_term() logic of 6.x |
| # on microblaze. http://autobuild.buildroot.net/results/158e8ebb39713e1b436a5cc1a1916f46c30694df/ |
| config BR2_TOOLCHAIN_HAS_GCC_BUG_85862 |
| bool |
| default y if BR2_microblaze |
| depends on !BR2_TOOLCHAIN_GCC_AT_LEAST_7 |
| |
| # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90620 |
| # ICE: in do_output_reload, at reload1.c:7978 on microblaze. |
| # This bug no longer exists in gcc 10.x but reappeared in gcc 11.x |
| config BR2_TOOLCHAIN_HAS_GCC_BUG_90620 |
| bool |
| default y if BR2_microblaze |
| depends on !BR2_TOOLCHAIN_GCC_AT_LEAST_10 \ |
| || BR2_TOOLCHAIN_GCC_AT_LEAST_11 |
| |
| # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93847 |
| # ICE: compiler error: Segmentation fault on Nios II. This bug |
| # no longer exists in gcc 9.x. |
| config BR2_TOOLCHAIN_HAS_GCC_BUG_93847 |
| bool |
| default y if BR2_nios2 && !BR2_TOOLCHAIN_GCC_AT_LEAST_9 |
| |
| # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99410 |
| # Error: branch offset out of range on Nios II. This bug |
| # no longer exists in gcc 8.x but reappeared on gcc 9.x and still exists |
| # on gcc 12.x |
| config BR2_TOOLCHAIN_HAS_GCC_BUG_99410 |
| bool |
| default y if !BR2_TOOLCHAIN_GCC_AT_LEAST_8 |
| default y if BR2_TOOLCHAIN_GCC_AT_LEAST_9 |
| depends on BR2_nios2 |
| |
| # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101737 |
| # ICE: SH4 -Os causes internal compiler error. This bug |
| # still exists in gcc = 11.1.0 |
| config BR2_TOOLCHAIN_HAS_GCC_BUG_101737 |
| bool |
| default y if BR2_sh |
| |
| # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101915 |
| # ICE: in extract_insn, at recog.c:2294 on microblaze. |
| # This bug still exists in gcc = 12.1.0 |
| config BR2_TOOLCHAIN_HAS_GCC_BUG_101915 |
| bool |
| default y if BR2_microblaze |
| |
| # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101916 |
| # ICE: on SH4: Segmentation fault signal terminated program cc1. |
| # This bug still exists in gcc = 11.1.0 |
| config BR2_TOOLCHAIN_HAS_GCC_BUG_101916 |
| bool |
| default y if BR2_sh4 |
| |
| # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101952 |
| # ICE: on SH4: unaligned opcodes detected in executable segment. |
| # This bug still exists in gcc = 11.1.0 |
| config BR2_TOOLCHAIN_HAS_GCC_BUG_101952 |
| bool |
| default y if BR2_sh4 |
| |
| # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104028 |
| # ICE: on M68K: Error: value -16034 out of range |
| # This bug still exists in gcc = 11.1.0 |
| config BR2_TOOLCHAIN_HAS_GCC_BUG_104028 |
| bool |
| default y if BR2_m68k |
| |
| # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107728 |
| # https://sourceware.org/bugzilla/show_bug.cgi?id=29621 |
| config BR2_TOOLCHAIN_HAS_GCC_BUG_107728 |
| bool |
| default y if BR2_microblazebe || BR2_microblazeel \ |
| || BR2_mips || BR2_mipsel \ |
| || BR2_nios2 \ |
| || BR2_or1k \ |
| || BR2_sh |
| depends on BR2_TOOLCHAIN_USES_GLIBC |
| depends on BR2_OPTIMIZE_0 |
| |
| # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110934 |
| # ICE: on M68K: in change_address_1, at emit-rtl.cc:2287 |
| # This bug exists in gcc = 12.3.0 and gcc = 13.2.0 |
| config BR2_TOOLCHAIN_HAS_GCC_BUG_110934 |
| bool |
| default y if BR2_m68k |
| |
| # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111001 |
| # ICE: on SH4: during RTL pass: sh_treg_combine2 |
| # This bug exist in gcc = 13.2.0 |
| config BR2_TOOLCHAIN_HAS_GCC_BUG_111001 |
| bool |
| default y if BR2_sh |
| depends on BR2_TOOLCHAIN_GCC_AT_LEAST_13 |
| depends on BR2_OPTIMIZE_1 || \ |
| BR2_OPTIMIZE_2 || \ |
| BR2_OPTIMIZE_3 |
| |
| config BR2_TOOLCHAIN_HAS_NATIVE_RPC |
| bool |
| |
| config BR2_USE_WCHAR |
| bool |
| |
| config BR2_ENABLE_LOCALE |
| bool |
| |
| config BR2_INSTALL_LIBSTDCPP |
| bool |
| |
| config BR2_TOOLCHAIN_HAS_DLANG |
| bool |
| |
| config BR2_TOOLCHAIN_HAS_FORTRAN |
| bool |
| |
| config BR2_TOOLCHAIN_HAS_THREADS |
| bool |
| |
| config BR2_TOOLCHAIN_HAS_THREADS_DEBUG |
| bool |
| |
| config BR2_TOOLCHAIN_HAS_THREADS_NPTL |
| bool |
| |
| config BR2_TOOLCHAIN_HAS_SSP |
| bool |
| |
| config BR2_TOOLCHAIN_HAS_SSP_STRONG |
| bool |
| default y if BR2_TOOLCHAIN_HAS_SSP && BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 |
| |
| # This boolean is true if the toolchain provides a full featured |
| # ucontext implementation with ucontext_t and {get,make,set}context |
| config BR2_TOOLCHAIN_HAS_UCONTEXT |
| bool |
| |
| config BR2_TOOLCHAIN_HAS_OPENMP |
| bool |
| |
| config BR2_TOOLCHAIN_SUPPORTS_PIE |
| bool |
| |
| config BR2_TOOLCHAIN_GLIBC_GCONV_LIBS_COPY |
| bool "Copy gconv libraries" |
| depends on BR2_TOOLCHAIN_USES_GLIBC |
| help |
| The gconv libraries are used to convert between different |
| character sets (charsets). |
| |
| Say 'y' if you need to store and/or display different |
| charsets. |
| |
| config BR2_TOOLCHAIN_GLIBC_GCONV_LIBS_LIST |
| string "Gconv libraries to copy" |
| depends on BR2_TOOLCHAIN_GLIBC_GCONV_LIBS_COPY |
| help |
| Set to the list of gconv libraries to copy. |
| Leave empty to copy all gconv libraries. |
| |
| Specify only the basename of the libraries, leave |
| out the .so extension. Eg.: |
| IBM850 ISO8859-15 UNICODE |
| |
| Note: the full set of gconv libs are ~8MiB (on ARM). |
| |
| config BR2_TOOLCHAIN_EXTRA_LIBS |
| string "Extra toolchain libraries to be copied to target" |
| default BR2_TOOLCHAIN_EXTRA_EXTERNAL_LIBS if BR2_TOOLCHAIN_EXTRA_EXTERNAL_LIBS != "" # legacy |
| depends on !BR2_STATIC_LIBS |
| help |
| If your toolchain provides extra libraries that need to be |
| copied to the target filesystem, enter them here, separated |
| by spaces. The library should not include a suffix or any |
| type of pre/post wildcard. |
| |
| Examples where this can be useful is for adding debug |
| libraries to the target like the GCC libsanitizer. |
| e.g. "libasan liblsan libtsan libubsan" |
| |
| # This boolean is true if the toolchain provides a built-in full |
| # featured gettext implementation (glibc), and false if only a stub |
| # gettext implementation is provided (uclibc, musl) |
| config BR2_TOOLCHAIN_HAS_FULL_GETTEXT |
| bool |
| |
| config BR2_TARGET_OPTIMIZATION |
| string "Target Optimizations" |
| default "" |
| help |
| Optimizations to use when building for the target host. |
| NOTE: gcc optimization level is defined in build options. |
| |
| config BR2_TARGET_LDFLAGS |
| string "Target linker options" |
| help |
| Extra options to pass to the linker when building for the |
| target. |
| |
| Note that options with a '$' sign (eg. |
| -Wl,-rpath='$ORIGIN/../lib') are not supported. |
| |
| # Options for packages to depend on, if they require at least a |
| # specific version of the kernel headers. |
| # Toolchains should choose the adequate option (ie. the highest |
| # version, not all of them). |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_0 |
| bool |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_1 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_0 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_2 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_1 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_3 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_2 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_4 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_3 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_5 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_4 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_6 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_5 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_7 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_6 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_8 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_7 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_9 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_8 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_10 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_9 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_11 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_10 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_12 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_11 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_13 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_12 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_14 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_13 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_15 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_14 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_16 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_15 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_17 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_16 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_18 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_17 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_19 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_18 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_0 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_19 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_1 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_0 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_2 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_1 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_3 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_2 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_4 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_3 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_5 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_4 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_6 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_5 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_7 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_6 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_8 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_7 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_9 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_8 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_10 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_9 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_11 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_10 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_12 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_11 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_13 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_12 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_14 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_13 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_15 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_14 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_16 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_15 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_17 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_16 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_18 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_17 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_19 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_18 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_20 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_19 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_0 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_20 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_1 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_0 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_2 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_1 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_3 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_2 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_4 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_3 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_5 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_4 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_6 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_5 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_7 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_6 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_8 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_7 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_9 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_8 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_10 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_9 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_11 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_10 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_12 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_11 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_13 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_12 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_14 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_13 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_15 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_14 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_16 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_15 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_17 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_16 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_18 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_17 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_19 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_18 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_0 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_19 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_1 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_0 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_2 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_1 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_3 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_2 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_4 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_3 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_5 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_4 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_6 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_5 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_7 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_6 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_8 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_7 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_9 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_8 |
| |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_10 |
| bool |
| select BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_9 |
| select BR2_TOOLCHAIN_HEADERS_LATEST |
| |
| # This should be selected by the latest version, above, to indicate that |
| # Buildroot does not know of more recent headers than the ones selected. |
| # This allows using toolchains with headers more recent than Buildroot |
| # knows about, while still enforcing strict check for older headers. |
| config BR2_TOOLCHAIN_HEADERS_LATEST |
| bool |
| |
| # This order guarantees that the highest version is set, as kconfig |
| # stops affecting a value on the first matching default. |
| config BR2_TOOLCHAIN_HEADERS_AT_LEAST |
| string |
| default "6.10" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_10 |
| default "6.9" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_9 |
| default "6.8" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_8 |
| default "6.7" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_7 |
| default "6.6" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_6 |
| default "6.5" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_5 |
| default "6.4" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_4 |
| default "6.3" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_3 |
| default "6.2" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_2 |
| default "6.1" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_1 |
| default "6.0" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_0 |
| default "5.19" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_19 |
| default "5.18" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_18 |
| default "5.17" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_17 |
| default "5.16" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_16 |
| default "5.15" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_15 |
| default "5.14" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_14 |
| default "5.13" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_13 |
| default "5.12" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_12 |
| default "5.11" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_11 |
| default "5.10" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_10 |
| default "5.9" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_9 |
| default "5.8" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_8 |
| default "5.7" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_7 |
| default "5.6" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_6 |
| default "5.5" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_5 |
| default "5.4" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_4 |
| default "5.3" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_3 |
| default "5.2" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_2 |
| default "5.1" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_1 |
| default "5.0" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_0 |
| default "4.20" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_20 |
| default "4.19" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_19 |
| default "4.18" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_18 |
| default "4.17" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_17 |
| default "4.16" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_16 |
| default "4.15" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_15 |
| default "4.14" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_14 |
| default "4.13" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_13 |
| default "4.12" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_12 |
| default "4.11" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_11 |
| default "4.10" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_10 |
| default "4.9" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_9 |
| default "4.8" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_8 |
| default "4.7" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_7 |
| default "4.6" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_6 |
| default "4.5" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_5 |
| default "4.4" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_4 |
| default "4.3" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_3 |
| default "4.2" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_2 |
| default "4.1" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_1 |
| default "4.0" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_0 |
| default "3.19" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_19 |
| default "3.18" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_18 |
| default "3.17" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_17 |
| default "3.16" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_16 |
| default "3.15" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_15 |
| default "3.14" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_14 |
| default "3.13" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_13 |
| default "3.12" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_12 |
| default "3.11" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_11 |
| default "3.10" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_10 |
| default "3.9" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_9 |
| default "3.8" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_8 |
| default "3.7" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_7 |
| default "3.6" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_6 |
| default "3.5" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_5 |
| default "3.4" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_4 |
| default "3.3" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_3 |
| default "3.2" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_2 |
| default "3.1" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_1 |
| default "3.0" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_0 |
| default "2.6" |
| |
| config BR2_TOOLCHAIN_GCC_AT_LEAST_4_3 |
| bool |
| |
| config BR2_TOOLCHAIN_GCC_AT_LEAST_4_4 |
| bool |
| select BR2_TOOLCHAIN_GCC_AT_LEAST_4_3 |
| |
| config BR2_TOOLCHAIN_GCC_AT_LEAST_4_5 |
| bool |
| select BR2_TOOLCHAIN_GCC_AT_LEAST_4_4 |
| |
| config BR2_TOOLCHAIN_GCC_AT_LEAST_4_6 |
| bool |
| select BR2_TOOLCHAIN_GCC_AT_LEAST_4_5 |
| |
| config BR2_TOOLCHAIN_GCC_AT_LEAST_4_7 |
| bool |
| select BR2_TOOLCHAIN_GCC_AT_LEAST_4_6 |
| |
| config BR2_TOOLCHAIN_GCC_AT_LEAST_4_8 |
| bool |
| select BR2_TOOLCHAIN_GCC_AT_LEAST_4_7 |
| |
| config BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 |
| bool |
| select BR2_TOOLCHAIN_GCC_AT_LEAST_4_8 |
| |
| config BR2_TOOLCHAIN_GCC_AT_LEAST_5 |
| bool |
| select BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 |
| |
| config BR2_TOOLCHAIN_GCC_AT_LEAST_6 |
| bool |
| select BR2_TOOLCHAIN_GCC_AT_LEAST_5 |
| |
| config BR2_TOOLCHAIN_GCC_AT_LEAST_7 |
| bool |
| select BR2_TOOLCHAIN_GCC_AT_LEAST_6 |
| |
| config BR2_TOOLCHAIN_GCC_AT_LEAST_8 |
| bool |
| select BR2_TOOLCHAIN_GCC_AT_LEAST_7 |
| |
| config BR2_TOOLCHAIN_GCC_AT_LEAST_9 |
| bool |
| select BR2_TOOLCHAIN_GCC_AT_LEAST_8 |
| |
| config BR2_TOOLCHAIN_GCC_AT_LEAST_10 |
| bool |
| select BR2_TOOLCHAIN_GCC_AT_LEAST_9 |
| |
| config BR2_TOOLCHAIN_GCC_AT_LEAST_11 |
| bool |
| select BR2_TOOLCHAIN_GCC_AT_LEAST_10 |
| |
| config BR2_TOOLCHAIN_GCC_AT_LEAST_12 |
| bool |
| select BR2_TOOLCHAIN_GCC_AT_LEAST_11 |
| |
| config BR2_TOOLCHAIN_GCC_AT_LEAST_13 |
| bool |
| select BR2_TOOLCHAIN_GCC_AT_LEAST_12 |
| |
| config BR2_TOOLCHAIN_GCC_AT_LEAST_14 |
| bool |
| select BR2_TOOLCHAIN_GCC_AT_LEAST_13 |
| |
| # This order guarantees that the highest version is set, as kconfig |
| # stops affecting a value on the first matching default. |
| config BR2_TOOLCHAIN_GCC_AT_LEAST |
| string |
| default "14" if BR2_TOOLCHAIN_GCC_AT_LEAST_14 |
| default "13" if BR2_TOOLCHAIN_GCC_AT_LEAST_13 |
| default "12" if BR2_TOOLCHAIN_GCC_AT_LEAST_12 |
| default "11" if BR2_TOOLCHAIN_GCC_AT_LEAST_11 |
| default "10" if BR2_TOOLCHAIN_GCC_AT_LEAST_10 |
| default "9" if BR2_TOOLCHAIN_GCC_AT_LEAST_9 |
| default "8" if BR2_TOOLCHAIN_GCC_AT_LEAST_8 |
| default "7" if BR2_TOOLCHAIN_GCC_AT_LEAST_7 |
| default "6" if BR2_TOOLCHAIN_GCC_AT_LEAST_6 |
| default "5" if BR2_TOOLCHAIN_GCC_AT_LEAST_5 |
| default "4.9" if BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 |
| default "4.8" if BR2_TOOLCHAIN_GCC_AT_LEAST_4_8 |
| default "4.7" if BR2_TOOLCHAIN_GCC_AT_LEAST_4_7 |
| default "4.6" if BR2_TOOLCHAIN_GCC_AT_LEAST_4_6 |
| default "4.5" if BR2_TOOLCHAIN_GCC_AT_LEAST_4_5 |
| default "4.4" if BR2_TOOLCHAIN_GCC_AT_LEAST_4_4 |
| default "4.3" if BR2_TOOLCHAIN_GCC_AT_LEAST_4_3 |
| |
| config BR2_TOOLCHAIN_HAS_MNAN_OPTION |
| bool |
| default y if BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 |
| |
| config BR2_TOOLCHAIN_HAS_SYNC_1 |
| bool |
| default y |
| depends on !BR2_m68k_cf |
| depends on !BR2_microblaze |
| depends on !BR2_sparc |
| depends on !(BR2_arc && !BR2_ARC_ATOMIC_EXT) |
| |
| config BR2_TOOLCHAIN_HAS_SYNC_2 |
| bool |
| default y if BR2_TOOLCHAIN_HAS_SYNC_1 |
| |
| config BR2_TOOLCHAIN_HAS_SYNC_4 |
| bool |
| default y |
| depends on !BR2_m68k_cf |
| depends on !BR2_sparc |
| depends on !(BR2_arc && !BR2_ARC_ATOMIC_EXT) |
| |
| # The availability of __sync for 8-byte types on ARM is somewhat |
| # complicated: |
| # |
| # - It appeared in gcc starting with gcc 4.7. |
| # |
| # - On ARMv7, there is no problem, it can be directly implemented in |
| # userspace. |
| # |
| # - On < ARMv7, it requires help from the kernel. Unfortunately, the |
| # libgcc code implementing 8-byte __sync with the help from the |
| # kernel calls __write() when a failure occurs, which is a function |
| # internal to glibc, not available in uClibc and musl. This means |
| # that the 8-byte __sync operations are not available on < ARMv7 |
| # with uClibc and musl. This problem was fixed as part of gcc |
| # PR68059, which was backported to the gcc 5 branch, but isn't yet |
| # part of any gcc 5.x release. |
| # |
| config BR2_TOOLCHAIN_ARM_HAS_SYNC_8 |
| bool |
| default y |
| depends on BR2_arm || BR2_armeb |
| depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_7 |
| depends on BR2_TOOLCHAIN_USES_GLIBC || BR2_ARM_CPU_ARMV7A |
| |
| # 8-byte intrinsics available on most x86 CPUs, except a few old ones |
| config BR2_TOOLCHAIN_X86_HAS_SYNC_8 |
| bool |
| default y |
| depends on BR2_i386 |
| depends on !BR2_x86_i486 |
| depends on !BR2_x86_c3 |
| depends on !BR2_x86_winchip_c6 |
| depends on !BR2_x86_winchip2 |
| |
| # 8-byte intrinsics available: |
| # - On all 64 bits architecture |
| # - On a certain combinations of ARM platforms |
| # - On certain x86 32 bits CPUs |
| config BR2_TOOLCHAIN_HAS_SYNC_8 |
| bool |
| default y if BR2_ARCH_IS_64 |
| default y if BR2_TOOLCHAIN_ARM_HAS_SYNC_8 |
| default y if BR2_TOOLCHAIN_X86_HAS_SYNC_8 |
| |
| # libatomic is available since gcc 4.8, when thread support is enabled. |
| # However, the gcc logic in libatomic/configure.tgt does not recognize |
| # "uclinux" as a valid OS part of the target tuple, and therefore it |
| # does not build libatomic. The "uclinux" part of the tuple is used by |
| # Buildroot when BR2_BINFMT_FLAT=y. This broken logic has only been |
| # fixed for arm since gcc 10.1.0. |
| config BR2_TOOLCHAIN_HAS_LIBATOMIC |
| bool |
| default y if BR2_TOOLCHAIN_GCC_AT_LEAST_4_8 |
| depends on BR2_TOOLCHAIN_HAS_THREADS |
| depends on BR2_BINFMT_ELF || \ |
| (BR2_BINFMT_FLAT && BR2_arm && \ |
| BR2_TOOLCHAIN_GCC_AT_LEAST_10) |
| |
| # __atomic intrinsics are available: |
| # - with gcc 4.8, either through built-ins or libatomic, on all |
| # architectures. Since we don't want to separate the cases where |
| # libatomic is needed vs. not needed, we simplify thing and only |
| # support situations where libatomic is available, even if on some |
| # architectures libatomic is not strictly needed as all __atomic |
| # intrinsics might be built-in. The only case where libatomic is |
| # missing entirely is when the toolchain does not have support for |
| # threads. However, a package that does not need threads but still |
| # uses atomics is quite a corner case, which does not warrant the |
| # added complexity. |
| # - with gcc 4.7, libatomic did not exist, so only built-ins are |
| # available. This means that __atomic can only be used in a subset |
| # of the architectures |
| config BR2_TOOLCHAIN_HAS_ATOMIC |
| bool |
| default y if BR2_TOOLCHAIN_HAS_LIBATOMIC |
| default y if BR2_TOOLCHAIN_GCC_AT_LEAST_4_7 && BR2_arm |
| default y if BR2_TOOLCHAIN_GCC_AT_LEAST_4_7 && BR2_armeb |
| default y if BR2_TOOLCHAIN_GCC_AT_LEAST_4_7 && BR2_xtensa |
| default y if BR2_TOOLCHAIN_GCC_AT_LEAST_4_7 && BR2_ARCH_IS_64 |
| |
| # - libquadmath is not needed/available on all architectures (but gcc |
| # correctly handles this already). |
| # - At least, libquadmath is available on: |
| # - i*86 |
| # - x86_64 |
| # - PowerPC with vector scalar (VSX) instruction set |
| # - When available, libquadmath requires wchar support. |
| config BR2_TOOLCHAIN_HAS_LIBQUADMATH |
| bool |
| default y if BR2_i386 || BR2_x86_64 |
| default y if BR2_POWERPC_CPU_HAS_VSX |
| |
| comment "Bare metal toolchain" |
| |
| config BR2_TOOLCHAIN_BARE_METAL_BUILDROOT |
| bool "Build a bare metal toolchain" |
| select BR2_PACKAGE_NEWLIB_BARE_METAL |
| help |
| Select if you need a bare-metal toolchain for building |
| platform specific firmware images. |
| |
| source "toolchain/toolchain-bare-metal-buildroot/Config.in" |
| |
| endmenu |
