kumquat-buildroot/package/rustc/Config.in.host

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# All host rust packages should depend on this option
config BR2_PACKAGE_HOST_RUSTC_ARCH_SUPPORTS
bool
default y if BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
# All target rust packages should depend on this option
config BR2_PACKAGE_HOST_RUSTC_TARGET_ARCH_SUPPORTS
bool
# The pre-built Rust standard library is only available for the
# following architectures/ABIs, and is built against glibc.
default y if BR2_i386
default y if BR2_x86_64
default y if BR2_aarch64
default y if BR2_arm && !BR2_ARM_CPU_ARMV4 && !BR2_ARM_CPU_ARMV5 \
&& !(BR2_ARM_CPU_ARMV7A && BR2_ARM_EABI)
default y if BR2_powerpc || BR2_powerpc64 || BR2_powerpc64le
default y if (BR2_mips || BR2_mipsel) && !BR2_MIPS_CPU_MIPS32R6
default y if (BR2_mips64 || BR2_mips64el) && !BR2_MIPS_CPU_MIPS64R6 \
&& BR2_MIPS_NABI64
depends on BR2_TOOLCHAIN_USES_GLIBC
depends on BR2_PACKAGE_HOST_RUSTC_ARCH_SUPPORTS
config BR2_PACKAGE_HOST_RUSTC_ARCH
string
default "armv7" if BR2_ARM_CPU_ARMV7A
default BR2_ARCH if !BR2_ARM_CPU_ARMV7A
config BR2_PACKAGE_HOST_RUSTC_ABI
string
default "eabi" if BR2_ARM_EABI
default "eabihf" if BR2_ARM_EABIHF
default "abi64" if BR2_MIPS_NABI64
config BR2_PACKAGE_HOST_RUSTC
bool "host rustc"
depends on BR2_PACKAGE_HOST_RUSTC_ARCH_SUPPORTS
help
Compiler for the Rust language
http://www.rust-lang.org
if BR2_PACKAGE_HOST_RUSTC
choice
prompt "Rust compiler variant"
default BR2_PACKAGE_HOST_RUST_BIN
help
Select a Rust compiler
rust: new package This new package provides rustc, the compiler for the Rust programming language, built from source. Currently, only the host variant is built. The Rust compiler uses LLVM as its backend: a copy of LLVM source code is provided and CMake is used to build it. It is possible to use a pre-built external copy. When LLVM/clang will be available in Buildroot, it would be possible to benefit from this feature and thus decrease build time. LLVM is configured to generate code for x86, ARM, PowerPC and MIPS architectures. The Rust compiler uses Cargo as its build system and is written in Rust. Therefore this package depends on cargo-bin and rust-bin. The internal build process is as follows: 1. stage0 compiler, provided by rust-bin, is used to build stage1 compiler. 2. stage1 compiler builds the final Rust compiler (stage2 compiler) and the standard library for the host architecture. 3. the standard library for the target architecture is built. The target architecture to support is given by the GNU/LLVM target triple. Rust supports some predefined targets [1]. As the build system expects the triple to be in the form of <arch>-unknown-<system> and Buildroot toolchain wrapper uses <arch>-buildroot-<system>, the package Makefile uses $(RUST_TARGET_NAME) defined in the rustc package and uses it instead of $(GNU_TARGET_NAME). When compiling Rust code with this compiler, the generated program only depends on the target C library, as it is statically linked to the Rust standard library and any other code from Rust packages (a.k.a. "crates"). If the jemalloc package is selected, support for this memory allocator will be enabled in the target standard library. The menuconfig entry for rustc is also updated to expose this provider. [1] https://forge.rust-lang.org/platform-support.html Signed-off-by: Eric Le Bihan <eric.le.bihan.dev@free.fr> Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2018-02-04 19:07:43 +01:00
config BR2_PACKAGE_HOST_RUST
bool "host rust"
# triggers ICE on trunc_int_for_mode, at explow.c:56
depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 || !BR2_aarch64
help
This package will build the compiler for the host as well as
two flavors of the standard library: one for the host, another
for the target. Both are installed in the host directory.
comment "host-rust needs a toolchain w/ gcc >= 5"
depends on BR2_aarch64
depends on !BR2_TOOLCHAIN_GCC_AT_LEAST_5
config BR2_PACKAGE_HOST_RUST_BIN
bool "host rust (pre-built)"
help
This package will install pre-built versions of the compiler
for the host and the Rust standard library for the target.
endchoice
endif
config BR2_PACKAGE_PROVIDES_HOST_RUSTC
string
rust: new package This new package provides rustc, the compiler for the Rust programming language, built from source. Currently, only the host variant is built. The Rust compiler uses LLVM as its backend: a copy of LLVM source code is provided and CMake is used to build it. It is possible to use a pre-built external copy. When LLVM/clang will be available in Buildroot, it would be possible to benefit from this feature and thus decrease build time. LLVM is configured to generate code for x86, ARM, PowerPC and MIPS architectures. The Rust compiler uses Cargo as its build system and is written in Rust. Therefore this package depends on cargo-bin and rust-bin. The internal build process is as follows: 1. stage0 compiler, provided by rust-bin, is used to build stage1 compiler. 2. stage1 compiler builds the final Rust compiler (stage2 compiler) and the standard library for the host architecture. 3. the standard library for the target architecture is built. The target architecture to support is given by the GNU/LLVM target triple. Rust supports some predefined targets [1]. As the build system expects the triple to be in the form of <arch>-unknown-<system> and Buildroot toolchain wrapper uses <arch>-buildroot-<system>, the package Makefile uses $(RUST_TARGET_NAME) defined in the rustc package and uses it instead of $(GNU_TARGET_NAME). When compiling Rust code with this compiler, the generated program only depends on the target C library, as it is statically linked to the Rust standard library and any other code from Rust packages (a.k.a. "crates"). If the jemalloc package is selected, support for this memory allocator will be enabled in the target standard library. The menuconfig entry for rustc is also updated to expose this provider. [1] https://forge.rust-lang.org/platform-support.html Signed-off-by: Eric Le Bihan <eric.le.bihan.dev@free.fr> Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2018-02-04 19:07:43 +01:00
default "host-rust" if BR2_PACKAGE_HOST_RUST
# Default to host-rust-bin as long as host arch supports it
default "host-rust-bin" if !BR2_PACKAGE_HOST_RUST
depends on BR2_PACKAGE_HOST_RUSTC_ARCH_SUPPORTS