561433f8f2
Commit b9882925a4 (toolchain: introduce
BR2_TOOLCHAIN_HAS_SHADOW_PASSWORDS) added this symbol to identify
Blackfin toolchains without shadow passwords support. We no longer
support Blackfin.
Cc: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
532 lines
15 KiB
Plaintext
532 lines
15 KiB
Plaintext
menu "Toolchain"
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# Invisible option that makes sure the toolchain package always gets
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# built
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config BR2_TOOLCHAIN
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bool
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default y
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# Should be selected for glibc or eglibc
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config BR2_TOOLCHAIN_USES_GLIBC
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bool
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select BR2_USE_WCHAR
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select BR2_ENABLE_LOCALE
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select BR2_TOOLCHAIN_HAS_FULL_GETTEXT
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select BR2_TOOLCHAIN_HAS_THREADS
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select BR2_TOOLCHAIN_HAS_THREADS_DEBUG
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select BR2_TOOLCHAIN_HAS_THREADS_NPTL
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select BR2_TOOLCHAIN_SUPPORTS_PIE
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config BR2_TOOLCHAIN_USES_UCLIBC
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bool
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select BR2_TOOLCHAIN_SUPPORTS_PIE if !BR2_m68k && !BR2_microblaze && !BR2_STATIC_LIBS
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config BR2_TOOLCHAIN_USES_MUSL
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bool
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select BR2_USE_WCHAR
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select BR2_ENABLE_LOCALE
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select BR2_TOOLCHAIN_HAS_THREADS
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select BR2_TOOLCHAIN_HAS_THREADS_DEBUG
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select BR2_TOOLCHAIN_HAS_THREADS_NPTL
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select BR2_TOOLCHAIN_SUPPORTS_PIE if !BR2_STATIC_LIBS
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choice
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prompt "Toolchain type"
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help
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Select whether to use the toolchain provided by buildroot
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or an external toolchain.
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Some vendors provide toolchains in binary form, some in
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source form.
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config BR2_TOOLCHAIN_BUILDROOT
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bool "Buildroot toolchain"
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depends on BR2_ARCH_HAS_TOOLCHAIN_BUILDROOT
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config BR2_TOOLCHAIN_EXTERNAL
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bool "External toolchain"
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help
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Select if you want to use an existing cross-compiling
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toolchain. Buildroot can either download automatically a
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toolchain, or use an already installed toolchain.
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endchoice
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source "toolchain/toolchain-buildroot/Config.in"
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source "toolchain/toolchain-external/Config.in"
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# Generic toolchain options
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# we want gdb config in the middle of both source and external
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# toolchains, but mconf won't let us source the same file twice,
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# so put it here instead
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source "package/gdb/Config.in.host"
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comment "Toolchain Generic Options"
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# https://sourceware.org/bugzilla/show_bug.cgi?id=19615
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# Affect toolchains built with binutils 2.26 (fixed in binutils 2.26.1).
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config BR2_TOOLCHAIN_HAS_BINUTILS_BUG_19615
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bool
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# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64735
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# exception_ptr, nested_exception, and future from libstdc++ are not
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# available for architectures not supporting always lock-free atomic
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# ints before GCC 7
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config BR2_TOOLCHAIN_HAS_GCC_BUG_64735
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bool
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default y if BR2_nios2
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default y if BR2_ARM_CPU_ARMV4
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default y if BR2_ARM_CPU_ARMV5
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default y if BR2_sparc_v8
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default y if BR2_m68k_cf5208
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depends on !BR2_TOOLCHAIN_GCC_AT_LEAST_7
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config BR2_TOOLCHAIN_HAS_NATIVE_RPC
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bool
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config BR2_USE_WCHAR
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bool
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config BR2_ENABLE_LOCALE
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bool
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config BR2_INSTALL_LIBSTDCPP
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bool
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config BR2_TOOLCHAIN_HAS_FORTRAN
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bool
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config BR2_TOOLCHAIN_HAS_THREADS
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bool
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config BR2_TOOLCHAIN_HAS_THREADS_DEBUG
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bool
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config BR2_TOOLCHAIN_HAS_THREADS_NPTL
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bool
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config BR2_TOOLCHAIN_HAS_SSP
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bool
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config BR2_TOOLCHAIN_SUPPORTS_PIE
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bool
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config BR2_TOOLCHAIN_GLIBC_GCONV_LIBS_COPY
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bool "Copy gconv libraries"
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depends on BR2_TOOLCHAIN_USES_GLIBC
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help
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The gconv libraries are used to convert between different
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character sets (charsets).
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Say 'y' if you need to store and/or display different
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charsets.
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config BR2_TOOLCHAIN_GLIBC_GCONV_LIBS_LIST
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string "Gconv libraries to copy"
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depends on BR2_TOOLCHAIN_GLIBC_GCONV_LIBS_COPY
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help
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Set to the list of gconv libraries to copy.
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Leave empty to copy all gconv libraries.
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Specify only the basename of the libraries, leave
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out the .so extension. Eg.:
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IBM850 ISO8859-15 UNICODE
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Note: the full set of gconv libs are ~8MiB (on ARM).
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# This boolean is true if the toolchain provides a built-in full
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# featured gettext implementation (glibc), and false if only a stub
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# gettext implementation is provided (uclibc, musl)
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config BR2_TOOLCHAIN_HAS_FULL_GETTEXT
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bool
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config BR2_USE_MMU
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bool "Enable MMU support" if BR2_ARCH_HAS_MMU_OPTIONAL
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default y if BR2_ARCH_HAS_MMU_OPTIONAL || BR2_ARCH_HAS_MMU_MANDATORY
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help
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If your target has a MMU, you should say Y here. If you
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are unsure, just say Y.
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config BR2_TARGET_OPTIMIZATION
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string "Target Optimizations"
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default ""
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help
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Optimizations to use when building for the target host.
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NOTE: gcc optimization level is defined in build options.
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config BR2_TARGET_LDFLAGS
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string "Target linker options"
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help
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Extra options to pass to the linker when building for the
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target.
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Note that options with a '$' sign (eg.
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-Wl,-rpath='$ORIGIN/../lib') are not supported.
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config BR2_ECLIPSE_REGISTER
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bool "Register toolchain within Eclipse Buildroot plug-in"
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help
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This options tells Buildroot to generate the necessary
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configuration files to make your toolchain appear within
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Eclipse, through the Eclipse Buildroot plugin.
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# Options for packages to depend on, if they require at least a
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# specific version of the kernel headers.
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# Toolchains should choose the adequate option (ie. the highest
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# version, not all of them).
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_0
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bool
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_1
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_0
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_2
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_1
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_3
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_2
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_4
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_3
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_5
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_4
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_6
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_5
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_7
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_6
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_8
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_7
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_9
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_8
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_10
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_9
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_11
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_10
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_12
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_11
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_13
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_12
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_14
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_13
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_15
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_14
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_16
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_15
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_17
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_16
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_18
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_17
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_19
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_18
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_0
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_19
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_1
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_0
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_2
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_1
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_3
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_2
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_4
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_3
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_5
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_4
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_6
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_5
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_7
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_6
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_8
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_7
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_9
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_8
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_10
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_9
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_11
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_10
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_12
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_11
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_13
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_12
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_14
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_13
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_15
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_14
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_16
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bool
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select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_15
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# This order guarantees that the highest version is set, as kconfig
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# stops affecting a value on the first matching default.
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config BR2_TOOLCHAIN_HEADERS_AT_LEAST
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string
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default "4.16" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_16
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default "4.15" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_15
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default "4.14" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_14
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default "4.13" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_13
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default "4.12" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_12
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default "4.11" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_11
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default "4.10" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_10
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default "4.9" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_9
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default "4.8" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_8
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default "4.7" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_7
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default "4.6" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_6
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default "4.5" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_5
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default "4.4" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_4
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default "4.3" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_3
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default "4.2" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_2
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default "4.1" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_1
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default "4.0" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_0
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default "3.19" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_19
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default "3.18" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_18
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default "3.17" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_17
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default "3.16" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_16
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default "3.15" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_15
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default "3.14" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_14
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default "3.13" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_13
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default "3.12" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_12
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default "3.11" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_11
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default "3.10" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_10
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default "3.9" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_9
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default "3.8" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_8
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default "3.7" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_7
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default "3.6" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_6
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default "3.5" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_5
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default "3.4" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_4
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default "3.3" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_3
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default "3.2" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_2
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default "3.1" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_1
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default "3.0" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_0
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default "2.6"
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config BR2_TOOLCHAIN_GCC_AT_LEAST_4_3
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bool
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config BR2_TOOLCHAIN_GCC_AT_LEAST_4_4
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bool
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select BR2_TOOLCHAIN_GCC_AT_LEAST_4_3
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config BR2_TOOLCHAIN_GCC_AT_LEAST_4_5
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bool
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select BR2_TOOLCHAIN_GCC_AT_LEAST_4_4
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config BR2_TOOLCHAIN_GCC_AT_LEAST_4_6
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bool
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select BR2_TOOLCHAIN_GCC_AT_LEAST_4_5
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config BR2_TOOLCHAIN_GCC_AT_LEAST_4_7
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bool
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select BR2_TOOLCHAIN_GCC_AT_LEAST_4_6
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config BR2_TOOLCHAIN_GCC_AT_LEAST_4_8
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bool
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select BR2_TOOLCHAIN_GCC_AT_LEAST_4_7
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config BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
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bool
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select BR2_TOOLCHAIN_GCC_AT_LEAST_4_8
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config BR2_TOOLCHAIN_GCC_AT_LEAST_5
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bool
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select BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
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config BR2_TOOLCHAIN_GCC_AT_LEAST_6
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bool
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select BR2_TOOLCHAIN_GCC_AT_LEAST_5
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config BR2_TOOLCHAIN_GCC_AT_LEAST_7
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bool
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select BR2_TOOLCHAIN_GCC_AT_LEAST_6
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# This order guarantees that the highest version is set, as kconfig
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# stops affecting a value on the first matching default.
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config BR2_TOOLCHAIN_GCC_AT_LEAST
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string
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default "7" if BR2_TOOLCHAIN_GCC_AT_LEAST_7
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default "6" if BR2_TOOLCHAIN_GCC_AT_LEAST_6
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default "5" if BR2_TOOLCHAIN_GCC_AT_LEAST_5
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default "4.9" if BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
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default "4.8" if BR2_TOOLCHAIN_GCC_AT_LEAST_4_8
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default "4.7" if BR2_TOOLCHAIN_GCC_AT_LEAST_4_7
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default "4.6" if BR2_TOOLCHAIN_GCC_AT_LEAST_4_6
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default "4.5" if BR2_TOOLCHAIN_GCC_AT_LEAST_4_5
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default "4.4" if BR2_TOOLCHAIN_GCC_AT_LEAST_4_4
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default "4.3" if BR2_TOOLCHAIN_GCC_AT_LEAST_4_3
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config BR2_TOOLCHAIN_HAS_MNAN_OPTION
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bool
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default y if BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
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config BR2_TOOLCHAIN_HAS_SYNC_1
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bool
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default y
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depends on !BR2_m68k_cf
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depends on !BR2_microblaze
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depends on !BR2_sparc
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depends on !(BR2_arc && !BR2_ARC_ATOMIC_EXT)
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config BR2_TOOLCHAIN_HAS_SYNC_2
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bool
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default y if BR2_TOOLCHAIN_HAS_SYNC_1
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config BR2_TOOLCHAIN_HAS_SYNC_4
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bool
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default y
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depends on !BR2_m68k_cf
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depends on !BR2_sparc
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depends on !(BR2_arc && !BR2_ARC_ATOMIC_EXT)
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# 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_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
|