Add RV32 support

Signed-off-by: Volodymyr Shymanskyy <vshymanskyi@gmail.com>

.github/workflows/build.yml

@@ -9,7 +9,7 @@ on:
 jobs:
 
   build:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     timeout-minutes: 5
 
     steps:
@@ -34,6 +34,12 @@ jobs:
 
         sudo apt update
         sudo apt install build-essential gcc-multilib gcc-arm-none-eabi
+        sudo apt install gcc-riscv64-unknown-elf picolibc-riscv64-unknown-elf
+
+    - name: Add RV32 support
+      run: |
+        cd ./tools/micropython-mpy-ld-link-archives
+        patch -p1 < ../../rv32.patch
 
     - name: Run builds
       run: |

buildall.py

@@ -5,7 +5,9 @@
 from tabulate import tabulate
 from concurrent.futures import ThreadPoolExecutor, as_completed
 
-targets = ["x86", "x64", "armv6m", "armv7m", "armv7emsp", "armv7emdp", "xtensa", "xtensawin"]  # "rv32imc"
+targets = ["x86", "x64",
+           "armv6m", "armv7m", "armv7emsp", "armv7emdp",
+           "xtensa", "xtensawin", "rv32imc"]
 apps = ["assemblyscript", "cpp", "rust", "tinygo", "zig", "virgil", "wat", "coremark"]