# Config entries for internal toolchain backend if BR2_TOOLCHAIN_BUILDROOT comment "Toolchain Buildroot Options" config BR2_TOOLCHAIN_BUILDROOT_VENDOR string "custom toolchain vendor name" default "buildroot" help This option allows to customize the "vendor" part of the toolchain tuple, where the toolchain tuple has the form ---. The default value, "buildroot", is fine for most cases, except in very specific situations where gcc might make different decisions based on the vendor part of the tuple. The value "unknown" is not allowed, as the cross-compiling toolchain might then be confused with the native toolchain when the target and host architecture are identical. The value can not be empty either. If you're not sure, just leave the default "buildroot" value. choice prompt "C library" default BR2_TOOLCHAIN_BUILDROOT_UCLIBC default BR2_TOOLCHAIN_BUILDROOT_GLIBC if BR2_powerpc64 config BR2_TOOLCHAIN_BUILDROOT_UCLIBC bool "uClibc-ng" depends on BR2_aarch64 || BR2_aarch64_be || BR2_arcle || BR2_arceb || \ BR2_arm || BR2_armeb || \ BR2_i386 || BR2_m68k || BR2_microblaze || \ BR2_mips || BR2_mipsel || BR2_mips64 || BR2_mips64el || \ BR2_or1k || BR2_powerpc || BR2_sh2a || BR2_sh4 || \ BR2_sh4eb || BR2_sparc || BR2_xtensa || BR2_x86_64 select BR2_TOOLCHAIN_USES_UCLIBC help This option selects uClibc-ng as the C library for the cross-compilation toolchain. http://uclibc-ng.org config BR2_TOOLCHAIN_BUILDROOT_GLIBC bool "glibc" depends on BR2_arm || BR2_armeb || BR2_aarch64 || \ BR2_aarch64_be || BR2_i386 || BR2_mips || \ BR2_mipsel || BR2_mips64 || BR2_mips64el|| \ BR2_powerpc || BR2_powerpc64 || BR2_powerpc64le || \ BR2_riscv || BR2_s390x || BR2_sh || \ BR2_sparc64 || BR2_x86_64 || BR2_microblaze || \ BR2_nios2 || (BR2_arc && BR2_ARC_ATOMIC_EXT) || BR2_csky depends on BR2_USE_MMU depends on !BR2_STATIC_LIBS depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_2 depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_10 || !BR2_powerpc64le depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_5 || !BR2_MIPS_NAN_2008 depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_0 || !BR2_RISCV_64 depends on !BR2_powerpc_SPE depends on BR2_RISCV_ISA_RVA || !BR2_riscv select BR2_TOOLCHAIN_USES_GLIBC # our glibc.mk enables RPC support select BR2_TOOLCHAIN_HAS_NATIVE_RPC help This option selects glibc as the C library for the cross-compilation toolchain. http://www.gnu.org/software/libc/ comment "glibc needs a toolchain w/ dynamic library, kernel headers >= 3.2" depends on BR2_USE_MMU depends on BR2_STATIC_LIBS || !BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_2 # glibc >= 2.26 require kernel headers >= 3.10 on powerpc64le. comment "glibc on powerpc64le needs a toolchain w/ headers >= 3.10" depends on BR2_powerpc64le depends on !BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_10 # Support for MIPS NAN2008 needs headers >= 4.5 comment "glibc on MIPS w/ NAN2008 needs a toolchain w/ headers >= 4.5" depends on BR2_MIPS_NAN_2008 depends on !BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_5 config BR2_TOOLCHAIN_BUILDROOT_MUSL bool "musl" depends on BR2_aarch64 || BR2_arm || BR2_armeb || BR2_i386 || \ BR2_microblaze || BR2_mips || BR2_mipsel || BR2_mips64 || \ BR2_mips64el || BR2_or1k || BR2_powerpc || BR2_powerpc64 || \ BR2_powerpc64le || BR2_RISCV_64 || BR2_sh || BR2_x86_64 depends on !BR2_powerpc_SPE # not supported, build breaks depends on !(BR2_powerpc64 || BR2_powerpc64le) || BR2_POWERPC_CPU_HAS_ALTIVEC # sh2 nommu is supported by musl, but we don't have support # for it in Buildroot. depends on BR2_USE_MMU select BR2_TOOLCHAIN_USES_MUSL help This option selects musl as the C library for the cross-compilation toolchain. https://www.musl-libc.org/ endchoice config BR2_TOOLCHAIN_BUILDROOT_LIBC string default "uclibc" if BR2_TOOLCHAIN_BUILDROOT_UCLIBC default "glibc" if BR2_TOOLCHAIN_BUILDROOT_GLIBC default "musl" if BR2_TOOLCHAIN_BUILDROOT_MUSL source "package/linux-headers/Config.in.host" source "package/linux-headers/Config.in" source "package/musl/Config.in" source "package/uclibc/Config.in" source "package/glibc/Config.in" source "package/binutils/Config.in.host" source "package/gcc/Config.in.host" source "package/elf2flt/Config.in.host" endif