20c267f2e9
musl currently assumes all PPC64(LE) CPUs support ALTIVEC instructions. However, there are exceptions (such as the e5500) for which musl builds ultimately generate illegal instructions for the targets. Disable musl if the PPC64(LE) CPU does not support ALTIVEC instructions. This patch addresses the issues seen here: https://gitlab.com/kubu93/toolchains-builder/-/jobs/418092743 https://gitlab.com/kubu93/toolchains-builder/-/jobs/418092744 musl mailing list thread: https://www.openwall.com/lists/musl/2020/02/03/10 Signed-off-by: Vincent Fazio <vfazio@xes-inc.com> Reviewed-by: Romain Naour <romain.naour@gmail.com> Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
117 lines
4.3 KiB
Plaintext
117 lines
4.3 KiB
Plaintext
# Config entries for internal toolchain backend
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if BR2_TOOLCHAIN_BUILDROOT
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comment "Toolchain Buildroot Options"
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config BR2_TOOLCHAIN_BUILDROOT_VENDOR
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string "custom toolchain vendor name"
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default "buildroot"
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help
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This option allows to customize the "vendor" part of the
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toolchain tuple, where the toolchain tuple has the form
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<arch>-<vendor>-<os>-<libc>. The default value, "buildroot",
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is fine for most cases, except in very specific situations
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where gcc might make different decisions based on the vendor
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part of the tuple. The value "unknown" is not allowed, as the
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cross-compiling toolchain might then be confused with the
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native toolchain when the target and host architecture are
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identical. The value can not be empty either.
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If you're not sure, just leave the default "buildroot" value.
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choice
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prompt "C library"
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default BR2_TOOLCHAIN_BUILDROOT_UCLIBC
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default BR2_TOOLCHAIN_BUILDROOT_GLIBC if BR2_powerpc64
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config BR2_TOOLCHAIN_BUILDROOT_UCLIBC
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bool "uClibc-ng"
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depends on BR2_aarch64 || BR2_aarch64_be || BR2_arcle || BR2_arceb || \
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BR2_arm || BR2_armeb || \
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BR2_i386 || BR2_m68k || BR2_microblaze || \
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BR2_mips || BR2_mipsel || BR2_mips64 || BR2_mips64el || \
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BR2_or1k || BR2_powerpc || BR2_sh2a || BR2_sh4 || \
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BR2_sh4eb || BR2_sparc || BR2_xtensa || BR2_x86_64
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select BR2_TOOLCHAIN_USES_UCLIBC
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help
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This option selects uClibc-ng as the C library for the
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cross-compilation toolchain.
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http://uclibc-ng.org
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config BR2_TOOLCHAIN_BUILDROOT_GLIBC
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bool "glibc"
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depends on BR2_arm || BR2_armeb || BR2_aarch64 || \
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BR2_aarch64_be || BR2_i386 || BR2_mips || \
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BR2_mipsel || BR2_mips64 || BR2_mips64el|| \
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BR2_powerpc || BR2_powerpc64 || BR2_powerpc64le || \
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BR2_riscv || BR2_sh || BR2_sparc64 || \
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BR2_x86_64 || BR2_microblaze || BR2_nios2 || \
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(BR2_arc && BR2_ARC_ATOMIC_EXT) || BR2_csky
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depends on BR2_USE_MMU
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depends on !BR2_STATIC_LIBS
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depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_2
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depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_10 || !BR2_powerpc64le
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depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_5 || !BR2_MIPS_NAN_2008
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depends on !BR2_powerpc_SPE
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depends on BR2_RISCV_ISA_RVA || !BR2_riscv
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select BR2_TOOLCHAIN_USES_GLIBC
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# our glibc.mk enables RPC support
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select BR2_TOOLCHAIN_HAS_NATIVE_RPC
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help
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This option selects glibc as the C library for the
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cross-compilation toolchain.
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http://www.gnu.org/software/libc/
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comment "glibc needs a toolchain w/ dynamic library, kernel headers >= 3.2"
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depends on BR2_USE_MMU
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depends on BR2_STATIC_LIBS || !BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_2
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# glibc >= 2.26 require kernel headers >= 3.10 on powerpc64le.
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comment "glibc on powerpc64le needs a toolchain w/ headers >= 3.10"
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depends on BR2_powerpc64le
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depends on !BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_10
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# Support for MIPS NAN2008 needs headers >= 4.5
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comment "glibc on MIPS w/ NAN2008 needs a toolchain w/ headers >= 4.5"
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depends on BR2_MIPS_NAN_2008
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depends on !BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_5
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config BR2_TOOLCHAIN_BUILDROOT_MUSL
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bool "musl"
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depends on BR2_aarch64 || BR2_arm || BR2_armeb || BR2_i386 || \
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BR2_microblaze || BR2_mips || BR2_mipsel || BR2_mips64 || \
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BR2_mips64el || BR2_or1k || BR2_powerpc || BR2_powerpc64 || \
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BR2_powerpc64le || BR2_RISCV_64 || BR2_sh || BR2_x86_64
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depends on !BR2_powerpc_SPE # not supported, build breaks
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depends on !(BR2_powerpc64 || BR2_powerpc64le) || BR2_POWERPC_CPU_HAS_ALTIVEC
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# sh2 nommu is supported by musl, but we don't have support
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# for it in Buildroot.
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depends on BR2_USE_MMU
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select BR2_TOOLCHAIN_USES_MUSL
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help
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This option selects musl as the C library for the
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cross-compilation toolchain.
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https://www.musl-libc.org/
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endchoice
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config BR2_TOOLCHAIN_BUILDROOT_LIBC
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string
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default "uclibc" if BR2_TOOLCHAIN_BUILDROOT_UCLIBC
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default "glibc" if BR2_TOOLCHAIN_BUILDROOT_GLIBC
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default "musl" if BR2_TOOLCHAIN_BUILDROOT_MUSL
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source "package/linux-headers/Config.in.host"
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source "package/linux-headers/Config.in"
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source "package/musl/Config.in"
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source "package/uclibc/Config.in"
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source "package/glibc/Config.in"
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source "package/binutils/Config.in.host"
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source "package/gcc/Config.in.host"
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source "package/elf2flt/Config.in.host"
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endif
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