+# 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
+ If enabled, OpenWrt will compile using an existing toolchain instead of
+ compiling one.
config NATIVE_TOOLCHAIN
bool
depends on EXTERNAL_TOOLCHAIN
select NO_STRIP
help
- If enabled, OpenWrt will compile using the native toolchain for your host instead of compiling one
+ 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
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
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
depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
default "uclibc"
help
- Specify the libc type used by the external toolchain. The given value us 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.
+ 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
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
+ Specify additional directories searched for toolchain binaries
+ (override PATH). Use ./DIR for directories relative to the root above.
config TOOLCHAIN_INC_PATH
string
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
+ Specify additional directories searched for header files (override
+ CPPFLAGS). Use ./DIR for directories relative to the root above.
config TOOLCHAIN_LIB_PATH
string
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
+ Specify additional directories searched for libraries (override LDFLAGS).
+ Use ./DIR for directories relative to the root above.
config NEED_TOOLCHAIN
bool
choice
prompt "C Library implementation" if TOOLCHAINOPTS
- default LIBC_USE_UCLIBC
+ default LIBC_USE_UCLIBC if mips64 || mips64el
+ default LIBC_USE_MUSL
help
Select the C library implementation.
- config LIBC_USE_EGLIBC
- bool "Use eglibc"
- select USE_EGLIBC
- depends on !avr32
+ 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
- bool "Use musl"
select USE_MUSL
+ bool "Use musl"
depends on !(mips64 || mips64el)
endchoice
-source "toolchain/eglibc/Config.in"
+source "toolchain/glibc/Config.in"
source "toolchain/uClibc/Config.in"
source "toolchain/musl/Config.in"
config GDB
bool
- depends on !avr32
+ depends on !(aarch64 || aarch64_be)
prompt "Build gdb" if TOOLCHAINOPTS
default y if !EXTERNAL_TOOLCHAIN
help
- Enable if you want to build the gdb
+ Enable if you want to build the gdb.
config INSIGHT
bool
select GDB
default n
help
- Enable if you want to build insight-gdb
+ Enable if you want to build insight-gdb.
-config USE_EGLIBC
+config USE_GLIBC
bool
config USE_UCLIBC
+ default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN && (mips64 || mips64el)
bool
- default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
config USE_MUSL
+ default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN && !(mips64 || mips64el)
bool
config USE_EXTERNAL_LIBC
source "toolchain/gcc/Config.version"
-source "toolchain/eglibc/Config.version"
+source "toolchain/glibc/Config.version"
source "toolchain/uClibc/Config.version"
source "toolchain/musl/Config.version"
config LIBC
string
- default "eglibc" if USE_EGLIBC
+ default "glibc" if USE_GLIBC
default "uClibc" if USE_UCLIBC
default "musl" if USE_MUSL
config LIBC_VERSION
string
- default EGLIBC_VERSION if USE_EGLIBC
+ 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_EGLIBC && (arm || armeb)
- default "gnu" if USE_EGLIBC && !(arm || armeb)
+ 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)
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