238 lines
5.6 KiB
Plaintext
238 lines
5.6 KiB
Plaintext
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# Copyright (C) 2006-2013 OpenWrt.org
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#
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# This is free software, licensed under the GNU General Public License v2.
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# See /LICENSE for more information.
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#
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menuconfig TARGET_OPTIONS
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bool "Target Options" if DEVEL
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config TARGET_OPTIMIZATION
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string "Target Optimizations" if TARGET_OPTIONS
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default DEFAULT_TARGET_OPTIMIZATION
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help
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Optimizations to use when building for the target host.
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config SOFT_FLOAT
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bool "Use software floating point by default" if TARGET_OPTIONS
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default y if !HAS_FPU
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depends on arm || armeb || powerpc || mipsel || mips || mips64el || mips64
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help
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If your target CPU does not have a Floating Point Unit (FPU) or a
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kernel FPU emulator, but you still wish to support floating point
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functions, then everything will need to be compiled with soft floating
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point support (-msoft-float).
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Most people will answer N.
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config USE_MIPS16
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bool "Build packages with MIPS16 instructions" if TARGET_OPTIONS
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depends on HAS_MIPS16
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default y
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help
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If your target CPU does support the MIPS16 instruction set
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and you want to use it for packages, enable this option.
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MIPS16 produces smaller binaries thus reducing pressure on
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caches and TLB.
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Most people will answer N.
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config UPDATE_TOOLCHAIN
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bool "Update Toolchain" if DEVEL
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default n
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help
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Compile toolchain and update into prebuilt dir.
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config MUSL_OPTIMIZATION
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bool "MUSL_OPTIMIZATION" if UPDATE_TOOLCHAIN && USE_MUSL
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depends on UPDATE_TOOLCHAIN
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depends on arm
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default y
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help
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MUSL C library optimization.
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config NEED_TOOLCHAIN
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bool
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depends on DEVEL
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default y if !EXTERNAL_TOOLCHAIN
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choice
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prompt "Select external toolchain C library" if DEVEL
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depends on EXTERNAL_TOOLCHAIN
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default EXT_TOOLCHAIN_LIBC_USE_MUSL
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help
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Select the C library implementation.
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config EXT_TOOLCHAIN_LIBC_USE_GLIBC
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bool "Use glibc"
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select USE_GLIBC
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depends on !arc
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config EXT_TOOLCHAIN_LIBC_USE_MUSL
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bool "Use musl"
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select USE_MUSL
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depends on !(arc || mips64 || mips64el)
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endchoice
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menuconfig TOOLCHAINOPTS
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bool "Toolchain Options" if DEVEL
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depends on NEED_TOOLCHAIN
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menuconfig EXTRA_TARGET_ARCH
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bool
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prompt "Enable an extra toolchain target architecture" if TOOLCHAINOPTS
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depends on !sparc
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default y if powerpc64
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default n
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help
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Some builds may require a 'biarch' toolchain. This option
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allows you to specify an additional target arch.
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Most people will answer N here.
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config EXTRA_TARGET_ARCH_NAME
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string
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default "powerpc64" if powerpc64
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prompt "Extra architecture name" if EXTRA_TARGET_ARCH
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help
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Specify the cpu name (eg powerpc64 or x86_64) of the
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additional target architecture.
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config EXTRA_TARGET_ARCH_OPTS
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string
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default "-m64" if powerpc64
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prompt "Extra architecture compiler options" if EXTRA_TARGET_ARCH
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help
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If you're specifying an addition target architecture,
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you'll probably need to also provide options to make
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the compiler use this alternate arch.
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For example, if you're building a compiler that can build
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both powerpc and powerpc64 binaries, you'll need to
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specify -m64 here.
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choice
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prompt "MIPS64 user-land ABI" if TOOLCHAINOPTS && (mips64 || mips64el)
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default MIPS64_ABI_N64
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help
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MIPS64 supports 3 different user-land ABIs: o32 (legacy),
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n32 and n64.
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config MIPS64_ABI_N64
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bool "n64"
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config MIPS64_ABI_N32
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bool "n32"
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config MIPS64_ABI_O32
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bool "o32"
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endchoice
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comment "Binary tools"
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depends on TOOLCHAINOPTS
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source "toolchain/binutils/Config.in"
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comment "Compiler"
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depends on TOOLCHAINOPTS
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source "toolchain/gcc/Config.in"
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comment "C Library"
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depends on TOOLCHAINOPTS
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choice
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prompt "C Library implementation" if TOOLCHAINOPTS
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depends on UPDATE_TOOLCHAIN
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default LIBC_USE_GLIBC if mips64 || mips64el
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default LIBC_USE_UCLIBC if arc
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default LIBC_USE_MUSL
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help
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Select the C library implementation.
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config LIBC_USE_GLIBC
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bool "Use glibc"
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select USE_GLIBC
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depends on !arc
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config LIBC_USE_MUSL
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select USE_MUSL
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bool "Use musl"
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depends on !(arc || mips64 || mips64el)
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endchoice
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source "toolchain/glibc/Config.in"
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comment "Debuggers"
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depends on TOOLCHAINOPTS
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config GDB
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bool
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prompt "Build gdb" if TOOLCHAINOPTS
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default y if !EXTERNAL_TOOLCHAIN
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help
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Enable if you want to build the gdb.
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config INSIGHT
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bool
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prompt "Build insight-gdb" if TOOLCHAINOPTS
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select GDB
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default n
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help
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Enable if you want to build insight-gdb.
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config TOOLCHAIN_LIBC
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string
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depends on !UPDATE_TOOLCHAIN
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default "glibc" if EXT_TOOLCHAIN_LIBC_USE_GLIBC
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default "musl" if !EXT_TOOLCHAIN_LIBC_USE_GLIBC
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config USE_GLIBC
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default y if USE_EXTERNAL_LIBC && EXT_TOOLCHAIN_LIBC_USE_GLIBC
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default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && (mips64 || mips64el)
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bool
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config USE_UCLIBC
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default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && (arc)
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bool
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config USE_MUSL
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default y if USE_EXTERNAL_LIBC && !EXT_TOOLCHAIN_LIBC_USE_GLIBC
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default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && !(arc || mips64 || mips64el)
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bool
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config USE_EXTERNAL_LIBC
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bool
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default y if EXTERNAL_TOOLCHAIN
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source "toolchain/binutils/Config.version"
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source "toolchain/gcc/Config.version"
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source "toolchain/glibc/Config.version"
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source "toolchain/musl/Config.version"
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config LIBC
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string
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default "glibc" if USE_GLIBC
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default "musl" if USE_MUSL
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config LIBC_VERSION
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string
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default GLIBC_VERSION if USE_GLIBC
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default MUSL_VERSION if USE_MUSL
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config TARGET_SUFFIX
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string
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default "gnueabi" if USE_GLIBC && (arm || armeb)
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default "gnu" if USE_GLIBC && !(arm || armeb)
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default "muslgnueabi" if USE_MUSL && (arm || armeb)
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default "musl" if USE_MUSL && !(arm || armeb)
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config EXTERNAL_TOOLCHAIN
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bool
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default y if !UPDATE_TOOLCHAIN
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