blob: 2058ff1eb9b1879de929213b309aedbca61cde14 [file] [log] [blame]
# 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
<arch>-<vendor>-<os>-<libc>. 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_RISCV_64 || 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