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cranelift-native: Detect RISC-V extensions using /proc/cpuinfo (#6192)

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* cranelift-native: Move riscv to separate module

* cranelift-native: Read /proc/cpuinfo to parse RISC-V extensions

* ci: Add QEMU cpuinfo emulation patch

This patch emulates the /proc/cpuinfo interface for RISC-V. This
allows us to do feature detection for the RISC-V backend.

It has been queued for QEMU 8.1 so we should remove it as soon as
that is available.

* ci: Enable QEMU RISC-V extensions

* cranelift-native: Cleanup ISA string parsing

Co-Authored-By: Jamey Sharp <jsharp@fastly.com>

* cranelift-native: Rework `/proc/cpuinfo` parsing

Co-Authored-By: Jamey Sharp <jsharp@fastly.com>

---------

Co-authored-by: Jamey Sharp <jsharp@fastly.com>
This commit is contained in:
Afonso Bordado
2023-04-11 18:31:42 +01:00
committed by GitHub
parent f2393b8f27
commit 9acb649f17
5 changed files with 266 additions and 42 deletions
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2
ci/build-test-matrix.js
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@@ -82,7 +82,7 @@ const array = [
"target": "riscv64gc-unknown-linux-gnu",
"gcc_package": "gcc-riscv64-linux-gnu",
"gcc": "riscv64-linux-gnu-gcc",
"qemu": "qemu-riscv64 -L /usr/riscv64-linux-gnu",
"qemu": "qemu-riscv64 -cpu rv64,zba=true,zbb=true,zbc=true,zbs=true,zbkb=true -L /usr/riscv64-linux-gnu",
"qemu_target": "riscv64-linux-user",
"name": "Test Linux riscv64",
"filter": "linux-riscv64",