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_HAS_UCONTEXT
|
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=21464
|
# Affect toolchains built with binutils 2.31.1, still not fixed.
|
config BR2_TOOLCHAIN_HAS_BINUTILS_BUG_21464
|
bool
|
default y if BR2_or1k
|
|
# https://sourceware.org/bugzilla/show_bug.cgi?id=27597
|
# Affect toolchains built with binutils 2.36.1, still not fixed.
|
config BR2_TOOLCHAIN_HAS_BINUTILS_BUG_27597
|
bool
|
default y if BR2_nios2
|
|
# 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
|
|
# 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 no
|
# 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_sh4
|
depends on !BR2_TOOLCHAIN_GCC_AT_LEAST_8 || \
|
BR2_TOOLCHAIN_GCC_AT_LEAST_9 || \
|
BR2_TOOLCHAIN_GCC_AT_LEAST_10 || \
|
BR2_TOOLCHAIN_GCC_AT_LEAST_11
|
|
# 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 9.x
|
config BR2_TOOLCHAIN_HAS_GCC_BUG_68485
|
bool
|
default y if BR2_microblaze
|
|
# 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_sh
|
depends on !BR2_TOOLCHAIN_GCC_AT_LEAST_10 || BR2_TOOLCHAIN_GCC_AT_LEAST_11
|
|
# 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
|
config BR2_TOOLCHAIN_HAS_GCC_BUG_90620
|
bool
|
default y if BR2_microblaze
|
depends on !BR2_TOOLCHAIN_GCC_AT_LEAST_10
|
|
# 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 has been
|
# fixed on gcc 10.x.
|
config BR2_TOOLCHAIN_HAS_GCC_BUG_99140
|
bool
|
default y if !BR2_TOOLCHAIN_GCC_AT_LEAST_8
|
default y if BR2_TOOLCHAIN_GCC_AT_LEAST_9 && !BR2_TOOLCHAIN_GCC_AT_LEAST_10
|
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_sh4
|
|
# 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 = 11.1.0
|
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
|
|
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
|
|
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_USE_MMU
|
bool "Enable MMU support" if BR2_ARCH_HAS_MMU_OPTIONAL
|
default y if BR2_ARCH_HAS_MMU_OPTIONAL || BR2_ARCH_HAS_MMU_MANDATORY
|
help
|
If your target has a MMU, you should say Y here. If you
|
are unsure, just say Y.
|
|
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.
|
|
config BR2_ECLIPSE_REGISTER
|
bool "Register toolchain within Eclipse Buildroot plug-in"
|
help
|
This options tells Buildroot to generate the necessary
|
configuration files to make your toolchain appear within
|
Eclipse, through the Eclipse Buildroot plugin.
|
|
# 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
|
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 "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
|
|
# 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 "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. Also, libatomic doesn't recognize "uclinux" as a valid OS
|
# part of the tuple, and is therefore not build on uclinux targets,
|
# which is why BR2_BINFMT_FLAT configurations are excluded.
|
config BR2_TOOLCHAIN_HAS_LIBATOMIC
|
bool
|
default y if BR2_TOOLCHAIN_GCC_AT_LEAST_4_8 && \
|
!BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64 && \
|
BR2_TOOLCHAIN_HAS_THREADS && \
|
!BR2_BINFMT_FLAT
|
|
# __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
|
# - When available, libquadmath requires wchar support.
|
config BR2_TOOLCHAIN_HAS_LIBQUADMATH
|
bool
|
default y if BR2_i386 || BR2_x86_64
|
|
endmenu
|
