468 lines
11 KiB
Plaintext
468 lines
11 KiB
Plaintext
menu "Target options"
|
|
|
|
config BR2_ARCH_IS_64
|
|
bool
|
|
|
|
config BR2_KERNEL_64_USERLAND_32
|
|
bool
|
|
|
|
config BR2_SOFT_FLOAT
|
|
bool
|
|
|
|
config BR2_USE_MMU
|
|
bool
|
|
|
|
choice
|
|
prompt "Target Architecture"
|
|
default BR2_i386
|
|
help
|
|
Select the target architecture family to build for.
|
|
|
|
config BR2_arcle
|
|
bool "ARC (little endian)"
|
|
select BR2_USE_MMU
|
|
help
|
|
Synopsys' DesignWare ARC Processor Cores are a family of
|
|
32-bit CPUs that can be used from deeply embedded to high
|
|
performance host applications. Little endian.
|
|
|
|
config BR2_arceb
|
|
bool "ARC (big endian)"
|
|
select BR2_USE_MMU
|
|
help
|
|
Synopsys' DesignWare ARC Processor Cores are a family of
|
|
32-bit CPUs that can be used from deeply embedded to high
|
|
performance host applications. Big endian.
|
|
|
|
config BR2_arm
|
|
bool "ARM (little endian)"
|
|
# MMU support is set by the subarchitecture file, arch/Config.in.arm
|
|
help
|
|
ARM is a 32-bit reduced instruction set computer (RISC)
|
|
instruction set architecture (ISA) developed by ARM Holdings.
|
|
Little endian.
|
|
http://www.arm.com/
|
|
http://en.wikipedia.org/wiki/ARM
|
|
|
|
config BR2_armeb
|
|
bool "ARM (big endian)"
|
|
select BR2_USE_MMU
|
|
help
|
|
ARM is a 32-bit reduced instruction set computer (RISC)
|
|
instruction set architecture (ISA) developed by ARM Holdings.
|
|
Big endian.
|
|
http://www.arm.com/
|
|
http://en.wikipedia.org/wiki/ARM
|
|
|
|
config BR2_aarch64
|
|
bool "AArch64 (little endian)"
|
|
select BR2_ARCH_IS_64
|
|
help
|
|
Aarch64 is a 64-bit architecture developed by ARM Holdings.
|
|
http://www.arm.com/products/processors/instruction-set-architectures/armv8-architecture.php
|
|
http://en.wikipedia.org/wiki/ARM
|
|
|
|
config BR2_aarch64_be
|
|
bool "AArch64 (big endian)"
|
|
select BR2_ARCH_IS_64
|
|
help
|
|
Aarch64 is a 64-bit architecture developed by ARM Holdings.
|
|
http://www.arm.com/products/processors/instruction-set-architectures/armv8-architecture.php
|
|
http://en.wikipedia.org/wiki/ARM
|
|
|
|
config BR2_i386
|
|
bool "i386"
|
|
select BR2_USE_MMU
|
|
help
|
|
Intel i386 architecture compatible microprocessor
|
|
http://en.wikipedia.org/wiki/I386
|
|
|
|
config BR2_m68k
|
|
bool "m68k"
|
|
# MMU support is set by the subarchitecture file, arch/Config.in.m68k
|
|
help
|
|
Motorola 68000 family microprocessor
|
|
http://en.wikipedia.org/wiki/M68k
|
|
|
|
config BR2_microblazeel
|
|
bool "Microblaze AXI (little endian)"
|
|
select BR2_USE_MMU
|
|
help
|
|
Soft processor core designed for Xilinx FPGAs from Xilinx. AXI
|
|
bus based architecture (little endian)
|
|
http://www.xilinx.com
|
|
http://en.wikipedia.org/wiki/Microblaze
|
|
|
|
config BR2_microblazebe
|
|
bool "Microblaze non-AXI (big endian)"
|
|
select BR2_USE_MMU
|
|
help
|
|
Soft processor core designed for Xilinx FPGAs from Xilinx. PLB
|
|
bus based architecture (non-AXI, big endian)
|
|
http://www.xilinx.com
|
|
http://en.wikipedia.org/wiki/Microblaze
|
|
|
|
config BR2_mips
|
|
bool "MIPS (big endian)"
|
|
select BR2_USE_MMU
|
|
help
|
|
MIPS is a RISC microprocessor from MIPS Technologies. Big
|
|
endian.
|
|
http://www.mips.com/
|
|
http://en.wikipedia.org/wiki/MIPS_Technologies
|
|
|
|
config BR2_mipsel
|
|
bool "MIPS (little endian)"
|
|
select BR2_USE_MMU
|
|
help
|
|
MIPS is a RISC microprocessor from MIPS Technologies. Little
|
|
endian.
|
|
http://www.mips.com/
|
|
http://en.wikipedia.org/wiki/MIPS_Technologies
|
|
|
|
config BR2_mips64
|
|
bool "MIPS64 (big endian)"
|
|
select BR2_ARCH_IS_64
|
|
select BR2_USE_MMU
|
|
help
|
|
MIPS is a RISC microprocessor from MIPS Technologies. Big
|
|
endian.
|
|
http://www.mips.com/
|
|
http://en.wikipedia.org/wiki/MIPS_Technologies
|
|
|
|
config BR2_mips64el
|
|
bool "MIPS64 (little endian)"
|
|
select BR2_ARCH_IS_64
|
|
select BR2_USE_MMU
|
|
help
|
|
MIPS is a RISC microprocessor from MIPS Technologies. Little
|
|
endian.
|
|
http://www.mips.com/
|
|
http://en.wikipedia.org/wiki/MIPS_Technologies
|
|
|
|
config BR2_nios2
|
|
bool "Nios II"
|
|
select BR2_USE_MMU
|
|
help
|
|
Nios II is a soft core processor from Altera Corporation.
|
|
http://www.altera.com/
|
|
http://en.wikipedia.org/wiki/Nios_II
|
|
|
|
config BR2_or1k
|
|
bool "OpenRISC"
|
|
select BR2_USE_MMU
|
|
help
|
|
OpenRISC is a free and open processor for embedded system.
|
|
http://openrisc.io
|
|
|
|
config BR2_powerpc
|
|
bool "PowerPC"
|
|
select BR2_USE_MMU
|
|
help
|
|
PowerPC is a RISC architecture created by Apple-IBM-Motorola
|
|
alliance. Big endian.
|
|
http://www.power.org/
|
|
http://en.wikipedia.org/wiki/Powerpc
|
|
|
|
config BR2_powerpc64
|
|
bool "PowerPC64 (big endian)"
|
|
select BR2_ARCH_IS_64
|
|
select BR2_USE_MMU
|
|
help
|
|
PowerPC is a RISC architecture created by Apple-IBM-Motorola
|
|
alliance. Big endian.
|
|
http://www.power.org/
|
|
http://en.wikipedia.org/wiki/Powerpc
|
|
|
|
config BR2_powerpc64le
|
|
bool "PowerPC64 (little endian)"
|
|
select BR2_ARCH_IS_64
|
|
select BR2_USE_MMU
|
|
help
|
|
PowerPC is a RISC architecture created by Apple-IBM-Motorola
|
|
alliance. Little endian.
|
|
http://www.power.org/
|
|
http://en.wikipedia.org/wiki/Powerpc
|
|
|
|
config BR2_riscv
|
|
bool "RISCV"
|
|
select BR2_ARCH_NEEDS_GCC_AT_LEAST_7
|
|
help
|
|
RISC-V is an open, free Instruction Set Architecture created
|
|
by the UC Berkeley Architecture Research group and supported
|
|
and promoted by RISC-V Foundation.
|
|
https://riscv.org/
|
|
https://en.wikipedia.org/wiki/RISC-V
|
|
|
|
config BR2_s390x
|
|
bool "s390x"
|
|
select BR2_ARCH_IS_64
|
|
select BR2_USE_MMU
|
|
help
|
|
s390x is a big-endian architecture made by IBM.
|
|
http://www.ibm.com/
|
|
http://en.wikipedia.org/wiki/IBM_System/390
|
|
|
|
config BR2_sh
|
|
bool "SuperH"
|
|
select BR2_USE_MMU
|
|
help
|
|
SuperH (or SH) is a 32-bit reduced instruction set computer
|
|
(RISC) instruction set architecture (ISA) developed by
|
|
Hitachi.
|
|
http://www.hitachi.com/
|
|
http://en.wikipedia.org/wiki/SuperH
|
|
|
|
config BR2_sparc
|
|
bool "SPARC"
|
|
select BR2_USE_MMU
|
|
help
|
|
SPARC (from Scalable Processor Architecture) is a RISC
|
|
instruction set architecture (ISA) developed by Sun
|
|
Microsystems.
|
|
http://www.oracle.com/sun
|
|
http://en.wikipedia.org/wiki/Sparc
|
|
|
|
config BR2_sparc64
|
|
bool "SPARC64"
|
|
select BR2_ARCH_IS_64
|
|
select BR2_USE_MMU
|
|
help
|
|
SPARC (from Scalable Processor Architecture) is a RISC
|
|
instruction set architecture (ISA) developed by Sun
|
|
Microsystems.
|
|
http://www.oracle.com/sun
|
|
http://en.wikipedia.org/wiki/Sparc
|
|
|
|
config BR2_x86_64
|
|
bool "x86_64"
|
|
select BR2_ARCH_IS_64
|
|
select BR2_USE_MMU
|
|
help
|
|
x86-64 is an extension of the x86 instruction set (Intel i386
|
|
architecture compatible microprocessor).
|
|
http://en.wikipedia.org/wiki/X86_64
|
|
|
|
config BR2_xtensa
|
|
bool "Xtensa"
|
|
# MMU support is set by the subarchitecture file, arch/Config.in.xtensa
|
|
help
|
|
Xtensa is a Tensilica processor IP architecture.
|
|
http://en.wikipedia.org/wiki/Xtensa
|
|
http://www.tensilica.com/
|
|
|
|
endchoice
|
|
|
|
# For some architectures or specific cores, our internal toolchain
|
|
# backend is not suitable (like, missing support in upstream gcc, or
|
|
# no ChipCo fork exists...)
|
|
config BR2_ARCH_HAS_NO_TOOLCHAIN_BUILDROOT
|
|
bool
|
|
|
|
config BR2_ARCH_HAS_TOOLCHAIN_BUILDROOT
|
|
bool
|
|
default y if !BR2_ARCH_HAS_NO_TOOLCHAIN_BUILDROOT
|
|
|
|
# The following symbols are selected by the individual
|
|
# Config.in.$ARCH files
|
|
config BR2_ARCH_NEEDS_GCC_AT_LEAST_4_8
|
|
bool
|
|
|
|
config BR2_ARCH_NEEDS_GCC_AT_LEAST_4_9
|
|
bool
|
|
select BR2_ARCH_NEEDS_GCC_AT_LEAST_4_8
|
|
|
|
config BR2_ARCH_NEEDS_GCC_AT_LEAST_5
|
|
bool
|
|
select BR2_ARCH_NEEDS_GCC_AT_LEAST_4_9
|
|
|
|
config BR2_ARCH_NEEDS_GCC_AT_LEAST_6
|
|
bool
|
|
select BR2_ARCH_NEEDS_GCC_AT_LEAST_5
|
|
|
|
config BR2_ARCH_NEEDS_GCC_AT_LEAST_7
|
|
bool
|
|
select BR2_ARCH_NEEDS_GCC_AT_LEAST_6
|
|
|
|
config BR2_ARCH_NEEDS_GCC_AT_LEAST_8
|
|
bool
|
|
select BR2_ARCH_NEEDS_GCC_AT_LEAST_7
|
|
|
|
config BR2_ARCH_NEEDS_GCC_AT_LEAST_9
|
|
bool
|
|
select BR2_ARCH_NEEDS_GCC_AT_LEAST_8
|
|
|
|
config BR2_ARCH_NEEDS_GCC_AT_LEAST_10
|
|
bool
|
|
select BR2_ARCH_NEEDS_GCC_AT_LEAST_9
|
|
|
|
config BR2_ARCH_NEEDS_GCC_AT_LEAST_11
|
|
bool
|
|
select BR2_ARCH_NEEDS_GCC_AT_LEAST_10
|
|
|
|
config BR2_ARCH_NEEDS_GCC_AT_LEAST_12
|
|
bool
|
|
select BR2_ARCH_NEEDS_GCC_AT_LEAST_11
|
|
|
|
# The following string values are defined by the individual
|
|
# Config.in.$ARCH files
|
|
config BR2_ARCH
|
|
string
|
|
|
|
config BR2_NORMALIZED_ARCH
|
|
string
|
|
|
|
config BR2_ENDIAN
|
|
string
|
|
|
|
config BR2_GCC_TARGET_ARCH
|
|
string
|
|
|
|
config BR2_GCC_TARGET_ABI
|
|
string
|
|
|
|
config BR2_GCC_TARGET_NAN
|
|
string
|
|
|
|
config BR2_GCC_TARGET_FP32_MODE
|
|
string
|
|
|
|
config BR2_GCC_TARGET_CPU
|
|
string
|
|
|
|
# The value of this option will be passed as --with-fpu=<value> when
|
|
# building gcc (internal backend) or -mfpu=<value> in the toolchain
|
|
# wrapper (external toolchain)
|
|
config BR2_GCC_TARGET_FPU
|
|
string
|
|
|
|
# The value of this option will be passed as --with-float=<value> when
|
|
# building gcc (internal backend) or -mfloat-abi=<value> in the toolchain
|
|
# wrapper (external toolchain)
|
|
config BR2_GCC_TARGET_FLOAT_ABI
|
|
string
|
|
|
|
# The value of this option will be passed as --with-mode=<value> when
|
|
# building gcc (internal backend) or -m<value> in the toolchain
|
|
# wrapper (external toolchain)
|
|
config BR2_GCC_TARGET_MODE
|
|
string
|
|
|
|
# Must be selected by binary formats that support shared libraries.
|
|
config BR2_BINFMT_SUPPORTS_SHARED
|
|
bool
|
|
|
|
# Must match the name of the architecture from readelf point of view,
|
|
# i.e the "Machine:" field of readelf output. See get_machine_name()
|
|
# in binutils/readelf.c for the list of possible values.
|
|
config BR2_READELF_ARCH_NAME
|
|
string
|
|
|
|
if BR2_arcle || BR2_arceb
|
|
source "arch/Config.in.arc"
|
|
endif
|
|
|
|
if BR2_arm || BR2_armeb || BR2_aarch64 || BR2_aarch64_be
|
|
source "arch/Config.in.arm"
|
|
endif
|
|
|
|
if BR2_m68k
|
|
source "arch/Config.in.m68k"
|
|
endif
|
|
|
|
if BR2_microblazeel || BR2_microblazebe
|
|
source "arch/Config.in.microblaze"
|
|
endif
|
|
|
|
if BR2_mips || BR2_mips64 || BR2_mipsel || BR2_mips64el
|
|
source "arch/Config.in.mips"
|
|
endif
|
|
|
|
if BR2_nios2
|
|
source "arch/Config.in.nios2"
|
|
endif
|
|
|
|
if BR2_or1k
|
|
source "arch/Config.in.or1k"
|
|
endif
|
|
|
|
if BR2_powerpc || BR2_powerpc64 || BR2_powerpc64le
|
|
source "arch/Config.in.powerpc"
|
|
endif
|
|
|
|
if BR2_riscv
|
|
source "arch/Config.in.riscv"
|
|
endif
|
|
|
|
if BR2_s390x
|
|
source "arch/Config.in.s390x"
|
|
endif
|
|
|
|
if BR2_sh
|
|
source "arch/Config.in.sh"
|
|
endif
|
|
|
|
if BR2_sparc || BR2_sparc64
|
|
source "arch/Config.in.sparc"
|
|
endif
|
|
|
|
if BR2_i386 || BR2_x86_64
|
|
source "arch/Config.in.x86"
|
|
endif
|
|
|
|
if BR2_xtensa
|
|
source "arch/Config.in.xtensa"
|
|
endif
|
|
|
|
# Set up target binary format
|
|
choice
|
|
prompt "Target Binary Format"
|
|
default BR2_BINFMT_ELF if BR2_USE_MMU
|
|
default BR2_BINFMT_FLAT
|
|
|
|
config BR2_BINFMT_ELF
|
|
bool "ELF"
|
|
depends on BR2_USE_MMU
|
|
select BR2_BINFMT_SUPPORTS_SHARED
|
|
help
|
|
ELF (Executable and Linkable Format) is a format for libraries
|
|
and executables used across different architectures and
|
|
operating systems.
|
|
|
|
config BR2_BINFMT_FLAT
|
|
bool "FLAT"
|
|
depends on !BR2_USE_MMU
|
|
help
|
|
FLAT binary is a relatively simple and lightweight executable
|
|
format based on the original a.out format. It is widely used
|
|
in environment where no MMU is available.
|
|
|
|
endchoice
|
|
|
|
# Set up flat binary type
|
|
choice
|
|
prompt "FLAT Binary type"
|
|
default BR2_BINFMT_FLAT_ONE
|
|
depends on BR2_BINFMT_FLAT
|
|
|
|
config BR2_BINFMT_FLAT_ONE
|
|
bool "One memory region"
|
|
help
|
|
All segments are linked into one memory region.
|
|
|
|
config BR2_BINFMT_FLAT_SHARED
|
|
bool "Shared binary"
|
|
depends on BR2_m68k
|
|
# Even though this really generates shared binaries, there is no libdl
|
|
# and dlopen() cannot be used. So packages that require shared
|
|
# libraries cannot be built. Therefore, we don't select
|
|
# BR2_BINFMT_SUPPORTS_SHARED and therefore force BR2_STATIC_LIBS.
|
|
# Although this adds -static to the compilation, that's not a problem
|
|
# because the -mid-shared-library option overrides it.
|
|
help
|
|
Allow to load and link indiviual FLAT binaries at run time.
|
|
|
|
endchoice
|
|
|
|
endmenu # Target options
|