![Romain Naour](/assets/img/avatar_default.png)
With the following defconfig: BR2_aarch64=y BR2_BINUTILS_VERSION_2_28_X=y BR2_GCC_VERSION_4_9_X=y BR2_TOOLCHAIN_BUILDROOT_CXX=y The build fail with this error: In file included from ../sysdeps/ieee754/flt-32/math_config.h:23:0, from ../sysdeps/ieee754/flt-32/e_expf.c:29: ../sysdeps/aarch64/fpu/math_private.h: In function 'roundtoint': ../sysdeps/aarch64/fpu/math_private.h:311:3: error: implicit declaration of function 'vrndn_f64' [-Werror=implicit-function-declaration] return vget_lane_f64 (vrndn_f64 (vld1_f64 (&x)), 0); ^ cc1: all warnings being treated as errors vrndn_f64 function has been introduced in glibc code since version 2.27 [1]. So we can't build a glibc based toolchain with gcc 4.9 anymore. Add a new dependency in the toolchain infra to avoid selecting glibc toolchain using gcc 4.9. [1] https://sourceware.org/git/?p=glibc.git;a=commit;h=72aa623345ada1276ed89dbc00fdff9639cb8eaf Signed-off-by: Romain Naour <romain.naour@gmail.com> Cc: Arnout Vandecappelle <arnout@mind.be> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
158 lines
4.8 KiB
Plaintext
158 lines
4.8 KiB
Plaintext
comment "GCC Options"
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choice
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prompt "GCC compiler Version"
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default BR2_GCC_VERSION_ARC if BR2_arc
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default BR2_GCC_VERSION_OR1K if BR2_or1k
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default BR2_GCC_VERSION_7_X
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help
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Select the version of gcc you wish to use.
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config BR2_GCC_VERSION_ARC
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bool "gcc arc (7.x)"
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# Only supported architecture
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depends on BR2_arc
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select BR2_TOOLCHAIN_GCC_AT_LEAST_7
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config BR2_GCC_VERSION_OR1K
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bool "gcc or1k (5.x)"
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# Only supported architecture
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depends on BR2_or1k
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select BR2_TOOLCHAIN_GCC_AT_LEAST_5
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config BR2_GCC_VERSION_4_9_X
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bool "gcc 4.9.x"
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depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_5
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# Broken or unsupported architectures
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depends on !BR2_arc
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depends on !BR2_or1k
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# musl on microblaze, ppc64 and mips64 unsupported
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depends on !(BR2_TOOLCHAIN_USES_MUSL && (BR2_microblazeel || BR2_microblazebe))
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depends on !(BR2_TOOLCHAIN_USES_MUSL && (BR2_powerpc64 || BR2_powerpc64le))
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depends on !(BR2_TOOLCHAIN_USES_MUSL && (BR2_mips64 || BR2_mips64el))
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# glibc >= 2.26 needs gcc >= 6.2
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depends on !(BR2_TOOLCHAIN_USES_GLIBC && BR2_powerpc64le)
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# glibc >= 2.27 needs gcc >= 5
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depends on !(BR2_TOOLCHAIN_USES_GLIBC && (BR2_aarch64 || BR2_aarch64_be))
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select BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
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config BR2_GCC_VERSION_5_X
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bool "gcc 5.x"
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depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_6
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# Broken or unsupported architectures
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depends on !BR2_arc
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depends on !BR2_or1k
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# musl on ppc64 and mips64 unsupported
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depends on !(BR2_TOOLCHAIN_USES_MUSL && (BR2_powerpc64 || BR2_powerpc64le))
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depends on !(BR2_TOOLCHAIN_USES_MUSL && (BR2_mips64 || BR2_mips64el))
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# glibc >= 2.26 needs gcc >= 6.2
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depends on !(BR2_TOOLCHAIN_USES_GLIBC && BR2_powerpc64le)
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select BR2_TOOLCHAIN_GCC_AT_LEAST_5
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config BR2_GCC_VERSION_6_X
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bool "gcc 6.x"
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depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_7
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# Broken or unsupported architectures
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depends on !BR2_arc
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depends on !BR2_or1k
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select BR2_TOOLCHAIN_GCC_AT_LEAST_6
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config BR2_GCC_VERSION_7_X
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bool "gcc 7.x"
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depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_8
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# Broken or unsupported architectures
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depends on !BR2_or1k
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select BR2_TOOLCHAIN_GCC_AT_LEAST_7
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config BR2_GCC_VERSION_8_X
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bool "gcc 8.x"
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# Broken or unsupported architectures
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depends on !BR2_or1k
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select BR2_TOOLCHAIN_GCC_AT_LEAST_8
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endchoice
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config BR2_GCC_SUPPORTS_FINEGRAINEDMTUNE
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bool
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default y
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config BR2_GCC_VERSION
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string
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default "4.9.4" if BR2_GCC_VERSION_4_9_X
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default "5.5.0" if BR2_GCC_VERSION_5_X
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default "6.4.0" if BR2_GCC_VERSION_6_X
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default "7.3.0" if BR2_GCC_VERSION_7_X
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default "8.2.0" if BR2_GCC_VERSION_8_X
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default "arc-2018.03" if BR2_GCC_VERSION_ARC
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default "or1k-musl-5.4.0-20170218" if BR2_GCC_VERSION_OR1K
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config BR2_EXTRA_GCC_CONFIG_OPTIONS
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string "Additional gcc options"
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default ""
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help
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Any additional gcc configure options you may want to
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include. Those options are applied for all of the gcc
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initial, gcc intermediate and gcc final passes.
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config BR2_TOOLCHAIN_BUILDROOT_CXX
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bool "Enable C++ support"
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select BR2_INSTALL_LIBSTDCPP
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help
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Enable this option if you want your toolchain to support the
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C++ language and you want C++ libraries to be installed on
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your target system.
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comment "Fortran support needs a toolchain w/ wchar"
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depends on BR2_TOOLCHAIN_HAS_LIBQUADMATH
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depends on !BR2_USE_WCHAR # libquadmath
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config BR2_TOOLCHAIN_BUILDROOT_FORTRAN
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bool "Enable Fortran support"
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# on architecture building libquadmath, wchar is required
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depends on !BR2_TOOLCHAIN_HAS_LIBQUADMATH || \
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(BR2_TOOLCHAIN_HAS_LIBQUADMATH && BR2_USE_WCHAR)
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select BR2_TOOLCHAIN_HAS_FORTRAN
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help
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Enable this option if you want your toolchain to support the
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Fortran language and you want Fortran libraries to be
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installed on your target system.
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config BR2_GCC_ENABLE_LTO
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bool "Enable compiler link-time-optimization support"
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select BR2_BINUTILS_ENABLE_LTO
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help
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This option enables link-time optimization (LTO) support in
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gcc.
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config BR2_GCC_ENABLE_OPENMP
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bool "Enable compiler OpenMP support"
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depends on !BR2_PTHREADS_NONE && !BR2_arc && !BR2_microblaze
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help
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Enable OpenMP support for the compiler
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config BR2_GCC_ENABLE_LIBMUDFLAP
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bool "Enable libmudflap support"
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# There are architectures, or specific configurations for
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# which mudflap is not supported.
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depends on !BR2_ARM_INSTRUCTIONS_THUMB && !BR2_powerpc_SPE
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depends on !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
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help
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libmudflap is a gcc library used for the mudflap pointer
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debugging functionality. It is only needed if you intend to
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use the -fmudflap gcc flag.
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See http://gcc.gnu.org/wiki/Mudflap_Pointer_Debugging and
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the help of the gcc -fmudflap option for more details.
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If you're unsure, leave this option disabled.
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config BR2_GCC_ENABLE_GRAPHITE
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bool "Enable graphite support"
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depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5
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help
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This option enables the graphite optimizations in the
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compiler.
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comment "graphite support needs gcc >= 5.x"
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depends on !BR2_TOOLCHAIN_GCC_AT_LEAST_5
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