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authorJames <>2015-11-04 11:49:21 +0000
committerJames <>2015-11-04 11:49:21 +0000
commit716ca530e1c4515d8683c9d5be3d56b301758b66 (patch)
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+# 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
+ depends on !GCC_VERSION_4_6
+ 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.
+
+
+menuconfig EXTERNAL_TOOLCHAIN
+ bool
+ prompt "Use external toolchain" if DEVEL
+ help
+ If enabled, OpenWrt 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, OpenWrt 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 "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 "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
+
+ config TOOLCHAIN_LIBC
+ string
+ prompt "Toolchain libc" if DEVEL
+ depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
+ default "uclibc"
+ 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 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"
+ 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
+ default y if powerpc64
+ default n
+ 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
+ default "powerpc64" if powerpc64
+ 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
+ default "-m64" if powerpc64
+ 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
+ bool "n32"
+
+ config MIPS64_ABI_O32
+ bool "o32"
+
+ endchoice
+
+comment "Binary tools"
+ depends on TOOLCHAINOPTS
+
+source "toolchain/binutils/Config.in"
+
+comment "Compiler"
+ depends on TOOLCHAINOPTS
+
+source "toolchain/gcc/Config.in"
+
+comment "C Library"
+ depends on TOOLCHAINOPTS
+
+choice
+ prompt "C Library implementation" if TOOLCHAINOPTS
+ default LIBC_USE_GLIBC if mips64 || mips64el
+ default LIBC_USE_MUSL
+ help
+ Select the C library implementation.
+
+ config LIBC_USE_GLIBC
+ bool "Use (e)glibc"
+ select USE_GLIBC
+
+ config LIBC_USE_UCLIBC
+ select USE_UCLIBC
+ bool "Use uClibc"
+ depends on !(aarch64 || aarch64_be)
+
+ config LIBC_USE_MUSL
+ select USE_MUSL
+ bool "Use musl"
+ depends on !(mips64 || mips64el)
+
+endchoice
+
+source "toolchain/glibc/Config.in"
+source "toolchain/uClibc/Config.in"
+source "toolchain/musl/Config.in"
+
+comment "Debuggers"
+ depends on TOOLCHAINOPTS
+
+config GDB
+ bool
+ depends on !(aarch64 || aarch64_be)
+ prompt "Build gdb" if TOOLCHAINOPTS
+ default y if !EXTERNAL_TOOLCHAIN
+ help
+ Enable if you want to build the gdb.
+
+config INSIGHT
+ bool
+ prompt "Build insight-gdb" if TOOLCHAINOPTS
+ select GDB
+ default n
+ help
+ Enable if you want to build insight-gdb.
+
+config USE_GLIBC
+ bool
+
+config USE_UCLIBC
+ default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN && (mips64 || mips64el)
+ bool
+
+config USE_MUSL
+ default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN && !(mips64 || mips64el)
+ bool
+
+config USE_EXTERNAL_LIBC
+ bool
+ default y if EXTERNAL_TOOLCHAIN || NATIVE_TOOLCHAIN
+
+source "toolchain/gcc/Config.version"
+
+source "toolchain/glibc/Config.version"
+source "toolchain/uClibc/Config.version"
+source "toolchain/musl/Config.version"
+
+config LIBC
+ string
+ default "glibc" if USE_GLIBC
+ default "uClibc" if USE_UCLIBC
+ default "musl" if USE_MUSL
+
+config LIBC_VERSION
+ string
+ default GLIBC_VERSION if USE_GLIBC
+ default UCLIBC_VERSION if USE_UCLIBC
+ default MUSL_VERSION if USE_MUSL
+
+config TARGET_SUFFIX
+ string
+ default "gnueabi" if USE_GLIBC && (arm || armeb)
+ default "gnu" if USE_GLIBC && !(arm || armeb)
+ default "uclibcgnueabi" if USE_UCLIBC && (arm || armeb)
+ default "uclibc" if USE_UCLIBC && !(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"