ee47352920
While musl has recently gained noMMU support for the sh2 platform, we don't support this yet. So for the time being, let's not show musl as an available C library on noMMU platforms. This is for example important on ARM noMMU: ARM is supported by musl, but not its noMMU variants. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
124 lines
4.2 KiB
Plaintext
124 lines
4.2 KiB
Plaintext
# Config entries for internal toolchain backend
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if BR2_TOOLCHAIN_BUILDROOT
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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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source "package/linux-headers/Config.in.host"
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choice
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prompt "C library"
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default BR2_TOOLCHAIN_UCLIBC
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default BR2_TOOLCHAIN_BUILDROOT_GLIBC if BR2_aarch64 || BR2_aarch64_be \
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|| BR2_microblaze || BR2_powerpc64
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config BR2_TOOLCHAIN_BUILDROOT_UCLIBC
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bool "uClibc"
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select BR2_TOOLCHAIN_USES_UCLIBC
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depends on BR2_arcle || BR2_arceb || BR2_arm || BR2_armeb || \
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BR2_bfin || BR2_i386 || BR2_m68k || \
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BR2_mips || BR2_mipsel || BR2_mips64 || BR2_mips64el || \
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BR2_powerpc || BR2_sh2a || BR2_sh4 || BR2_sh4eb || \
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BR2_sparc || BR2_xtensa || BR2_x86_64
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# Unsupported for MIPS R6
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depends on !BR2_mips_32r6 && !BR2_mips_64r6
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help
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This option selects uClibc as the C library for the
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cross-compilation toolchain.
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http://uclibc.org
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config BR2_TOOLCHAIN_BUILDROOT_EGLIBC
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bool "eglibc"
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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_sh || BR2_sh64 || \
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BR2_sparc || BR2_x86_64 || BR2_microblaze || \
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BR2_powerpc64
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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_DEPRECATED_SINCE_2015_08
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select BR2_TOOLCHAIN_USES_GLIBC
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# our eglibc.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 eglibc as the C library for the
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cross-compilation toolchain.
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http://eglibc.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_sh || BR2_sh64 || BR2_sparc64 || \
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BR2_x86_64 || BR2_microblaze || BR2_nios2
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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_powerpc_SPE
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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 "(e)glibc only available with shared lib support"
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depends on BR2_USE_MMU
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depends on BR2_STATIC_LIBS
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config BR2_TOOLCHAIN_BUILDROOT_MUSL
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bool "musl (experimental)"
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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_powerpc || \
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BR2_sh || BR2_x86_64
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depends on !BR2_powerpc_SPE # not supported, build breaks
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# Unsupported for MIPS R6
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depends on !BR2_mips_32r6 && !BR2_mips_64r6
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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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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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# Both glibc and eglibc are handled by the package called
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# 'glibc'
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default "glibc" if BR2_TOOLCHAIN_BUILDROOT_EGLIBC
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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"
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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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