# Copyright (C) 2006-2013 OpenWrt.org # # This is free software, licensed under the GNU General Public License v2. # See /LICENSE for more information. # menuconfig TARGET_OPTIONS bool "Target Options" if DEVEL config TARGET_OPTIMIZATION string "Target Optimizations" if TARGET_OPTIONS default DEFAULT_TARGET_OPTIMIZATION help Optimizations to use when building for the target host. config SOFT_FLOAT bool "Use software floating point by default" if TARGET_OPTIONS default y if !HAS_FPU depends on arm || armeb || powerpc || mipsel || mips || mips64el || mips64 help If your target CPU does not have a Floating Point Unit (FPU) or a kernel FPU emulator, but you still wish to support floating point functions, then everything will need to be compiled with soft floating point support (-msoft-float). Most people will answer N. config USE_MIPS16 bool "Build packages with MIPS16 instructions" if TARGET_OPTIONS depends on HAS_MIPS16 default y help If your target CPU does support the MIPS16 instruction set and you want to use it for packages, enable this option. MIPS16 produces smaller binaries thus reducing pressure on caches and TLB. Most people will answer N. choice BPF_TOOLCHAIN prompt "BPF toolchain" if DEVEL default BPF_TOOLCHAIN_BUILD_LLVM if BUILDBOT default BPF_TOOLCHAIN_PREBUILT if HAS_PREBUILT_LLVM_TOOLCHAIN default BPF_TOOLCHAIN_NONE config BPF_TOOLCHAIN_NONE bool "None" config BPF_TOOLCHAIN_PREBUILT bool "Use prebuilt LLVM toolchain" depends on HAS_PREBUILT_LLVM_TOOLCHAIN select USE_LLVM_PREBUILT config BPF_TOOLCHAIN_HOST select USE_LLVM_HOST bool "Use host LLVM toolchain" config BPF_TOOLCHAIN_BUILD_LLVM select USE_LLVM_BUILD bool "Build LLVM toolchain for eBPF" help If enabled, a LLVM toolchain for building eBPF binaries will be built. If this is not enabled, eBPF packages can only be built if the host has a suitable toolchain endchoice config BPF_TOOLCHAIN_HOST_PATH string depends on BPF_TOOLCHAIN_HOST prompt "Host LLVM toolchain path (prefix)" if DEVEL default "/usr/local/opt/llvm" if HOST_OS_MACOS default "" menuconfig EXTERNAL_TOOLCHAIN bool prompt "Use external toolchain" if DEVEL help If enabled, the buildroot will compile using an existing toolchain instead of compiling one. config NATIVE_TOOLCHAIN bool prompt "Use host's toolchain" if DEVEL depends on EXTERNAL_TOOLCHAIN select NO_STRIP help If enabled, the buildroot will compile using the native toolchain for your host instead of compiling one. config TARGET_NAME string prompt "Target name" if DEVEL depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN default "aarch64-unknown-linux-gnu" if aarch64 default "aarch64_be-unknown-linux-gnu" if aarch64_be default "arm-unknown-linux-gnu" if arm default "arm-none-eabi" if arm_m0 default "armeb-unknown-linux-gnu" if armeb default "i486-unknown-linux-gnu" if i386 default "mips-unknown-linux-gnu" if mips default "mipsel-unknown-linux-gnu" if mipsel default "powerpc-unknown-linux-gnu" if powerpc default "x86_64-unknown-linux-gnu" if x86_64 config TOOLCHAIN_PREFIX string prompt "Toolchain prefix" if DEVEL depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN default "aarch64-unknown-linux-gnu" if aarch64 default "aarch64_be-unknown-linux-gnu" if aarch64_be default "arm-unknown-linux-gnu-" if arm default "arm-none-eabi-" if arm_m0 default "armeb-unknown-linux-gnu-" if armeb default "i486-unknown-linux-gnu-" if i386 default "mips-unknown-linux-gnu-" if mips default "mipsel-unknown-linux-gnu-" if mipsel default "powerpc-unknown-linux-gnu-" if powerpc default "x86_64-unknown-linux-gnu-" if x86_64 config TOOLCHAIN_ROOT string prompt "Toolchain root" if DEVEL depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN default "/opt/cross/aarch64-unknown-linux-gnu" if aarch64 default "/opt/cross/aarch64_be-unknown-linux-gnu" if aarch64_be default "/opt/cross/arm-unknown-linux-gnu" if arm default "/opt/cross/armeb-unknown-linux-gnu" if armeb default "/opt/cross/i486-unknown-linux-gnu" if i386 default "/opt/cross/mips-unknown-linux-gnu" if mips default "/opt/cross/mipsel-unknown-linux-gnu" if mipsel default "/opt/cross/powerpc-unknown-linux-gnu" if powerpc default "/opt/cross/x86_64-unknown-linux-gnu" if x86_64 choice TOOLCHAIN_LIBC_TYPE prompt "Toolchain libc" if DEVEL depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN default EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL help Specify the libc type used by the external toolchain. The given value is passed as -m flag to all gcc and g++ invocations. This is mainly intended for multilib toolchains which support glibc and uclibc at the same time. If no value is specified, no -m flag is passed. config EXTERNAL_TOOLCHAIN_LIBC_USE_GLIBC bool "glibc" select USE_GLIBC config EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL bool "musl" select USE_MUSL endchoice config TOOLCHAIN_LIBC string depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN default "glibc" if EXTERNAL_TOOLCHAIN_LIBC_USE_GLIBC default "musl" if EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL config TOOLCHAIN_BIN_PATH string prompt "Toolchain program path" if DEVEL depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN default "./usr/bin ./bin" help Specify additional directories searched for toolchain binaries (override PATH). Use ./DIR for directories relative to the root above. config TOOLCHAIN_INC_PATH string prompt "Toolchain include path" if DEVEL depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN default "./usr/include ./include/fortify ./include" if EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL default "./usr/include ./include" help Specify additional directories searched for header files (override CPPFLAGS). Use ./DIR for directories relative to the root above. config TOOLCHAIN_LIB_PATH string prompt "Toolchain library path" if DEVEL depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN default "./usr/lib ./lib" help Specify additional directories searched for libraries (override LDFLAGS). Use ./DIR for directories relative to the root above. config NEED_TOOLCHAIN bool depends on DEVEL default y if !EXTERNAL_TOOLCHAIN menuconfig TOOLCHAINOPTS bool "Toolchain Options" if DEVEL depends on NEED_TOOLCHAIN menuconfig EXTRA_TARGET_ARCH bool prompt "Enable an extra toolchain target architecture" if TOOLCHAINOPTS depends on !sparc help Some builds may require a 'biarch' toolchain. This option allows you to specify an additional target arch. Most people will answer N here. config EXTRA_TARGET_ARCH_NAME string prompt "Extra architecture name" if EXTRA_TARGET_ARCH help Specify the cpu name (eg powerpc64 or x86_64) of the additional target architecture. config EXTRA_TARGET_ARCH_OPTS string prompt "Extra architecture compiler options" if EXTRA_TARGET_ARCH help If you're specifying an addition target architecture, you'll probably need to also provide options to make the compiler use this alternate arch. For example, if you're building a compiler that can build both powerpc and powerpc64 binaries, you'll need to specify -m64 here. choice prompt "MIPS64 user-land ABI" if TOOLCHAINOPTS && (mips64 || mips64el) default MIPS64_ABI_N64 help MIPS64 supports 3 different user-land ABIs: o32 (legacy), n32 and n64. config MIPS64_ABI_N64 bool "n64" config MIPS64_ABI_N32 depends on !LIBC_USE_MUSL bool "n32" config MIPS64_ABI_O32 bool "o32" endchoice comment "Binary tools" depends on TOOLCHAINOPTS source "toolchain/binutils/Config.in" config DWARVES bool prompt "Build pahole" if TOOLCHAINOPTS depends on !HOST_OS_MACOS help Enable if you want to build pahole and the dwarves tools. comment "Compiler" depends on TOOLCHAINOPTS source "toolchain/gcc/Config.in" config NASM bool depends on ( i386 || x86_64 ) prompt "Build nasm" if TOOLCHAINOPTS default y help Enable if you want to build nasm comment "C Library" depends on TOOLCHAINOPTS choice prompt "C Library implementation" if TOOLCHAINOPTS default LIBC_USE_GLIBC if arc default LIBC_USE_MUSL help Select the C library implementation. config LIBC_USE_GLIBC bool "Use glibc" select USE_GLIBC config LIBC_USE_MUSL select USE_MUSL bool "Use musl" depends on !arc endchoice source "toolchain/musl/Config.in" comment "Debuggers" depends on TOOLCHAINOPTS config GDB bool prompt "Build gdb" if TOOLCHAINOPTS default y if !EXTERNAL_TOOLCHAIN help Enable if you want to build the gdb. config GDB_PYTHON bool depends on GDB prompt "Build gdb with python binding" help Enable the python bindings for GDB to allow using python in the gdb shell. config HAS_BPF_TOOLCHAIN bool config HAS_PREBUILT_LLVM_TOOLCHAIN def_bool $(shell, [ -f llvm-bpf/.llvm-version ] && echo y || echo n) config USE_LLVM_HOST select HAS_BPF_TOOLCHAIN bool config USE_LLVM_PREBUILT select HAS_BPF_TOOLCHAIN default y if !DEVEL && !BUILDBOT && HAS_PREBUILT_LLVM_TOOLCHAIN bool config USE_LLVM_BUILD default y if !DEVEL && BUILDBOT select HAS_BPF_TOOLCHAIN bool config USE_GLIBC default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN && (arc) bool config USE_MUSL default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN && !(arc) bool config SSP_SUPPORT default y if !PKG_CC_STACKPROTECTOR_NONE bool config USE_EXTERNAL_LIBC bool default y if EXTERNAL_TOOLCHAIN || NATIVE_TOOLCHAIN source "toolchain/binutils/Config.version" source "toolchain/gcc/Config.version" config LIBC string default "glibc" if USE_GLIBC default "musl" if USE_MUSL config TARGET_SUFFIX string default "gnueabi" if USE_GLIBC && (arm || armeb) default "gnu" if USE_GLIBC && !(arm || armeb) default "muslgnueabi" if USE_MUSL && (arm || armeb) default "musl" if USE_MUSL && !(arm || armeb) config MIPS64_ABI depends on mips64 || mips64el string default "64" if MIPS64_ABI_N64 default "n32" if MIPS64_ABI_N32 default "32" if MIPS64_ABI_O32 default "64"