This commit modifies the host-rust virtual package to default to
host-rust-bin when no other selection has been made, as long as the
host supports rust. This allows host only tools to still use rust when
the target architecture does not support it.
Add target-specific variable which is used to differentiate host and
target arch requirements (BR2_PACKAGE_HOST_RUSTC_TARGET_ARCH_SUPPORTS).
A target package shall depend on this variable where a host package will
use the previously defined BR2_PACKAGE_HOST_RUSTC_ARCH_SUPPORTS. The new
"target" version is selectable for the same set of architectures as
before, but now depends on the host variant.
Signed-off-by: Sam Voss <sam.voss@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Reviewed-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Tested-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
utils/check-package complains as follows:
package/rustc/rustc.mk:10: possible typo: RUST_TARGET_NAME -> *RUSTC*
package/rustc/rustc.mk:18: possible typo: RUST_HOST_NAME -> *RUSTC*
As RUST_{HOST,TARGET}_NAME are related to the Rust compiler, it
sounds sensible to rename them to RUSTC_{HOST,TARGET}_NAME.
So update all rust related packages to use the new variables.
Signed-off-by: Eric Le Bihan <eric.le.bihan.dev@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
The compiler for the Rust programming language is called rustc.
There is only one reference implementation for it, based on LLVM, from
the Rust project [1]. It can generate code for various architectures so
it can be labeled as a cross-compiler. But, as for GCC, building it
from source takes time.
So it would be sensible to have at least one package which provides it
as a pre-built version, fetched from the upstream project. Later another
package can be added, to build it from source code.
In addition to the compiler, the standard library for the host and/or
the target should also be fetched/built.
So, add a virtual package named rustc to enable support for multiple
providers.
Currently, only the host variant will be available to allow the user to
cross-compile Rust programs for the target.
[1] http://rust-lang.org
Signed-off-by: Eric Le Bihan <eric.le.bihan.dev@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
