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rust-target-config: match riscv target names with what rust expects

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Official rust risc-v targets are prefixed with riscv32gc- and riscv64gc-:
https://doc.rust-lang.org/nightly/rustc/platform-support.html

Particularly crossbeam-utils make important build time decisions
for atomics based on those names, and so we need to match ours
with official targets.

On the other hand, the actual definitions for those targets do not
use the 'gc' suffix in 'arch' and 'llvm-target' fields, and so we
need to follow that too, to avoid cryptic mismatch errors from rust-llvm:
https://github.com/rust-lang/rust/blob/master/compiler/rustc_target/src/spec/riscv32gc_unknown_linux_gnu.rs

(From OE-Core rev: 1cfb9c8a59d98ccc9b0510cd28fb933f72fb6b6c)

Signed-off-by: Alexander Kanavin <alex@linutronix.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Alexander Kanavin
2022-10-25 20:44:26 +02:00
committed by Richard Purdie
parent 8dc68c2a80
commit 6608c076f6
2 changed files with 27 additions and 13 deletions
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meta/lib/oe/rust.py
+2
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@@ -8,4 +8,6 @@
def arch_to_rust_arch(arch):
if arch == "ppc64le":
return "powerpc64le"
if arch in ('riscv32', 'riscv64'):
return arch + 'gc'
return arch