Add riscv64gc-unknown-linux-gnu support

Author: tblah

rustup-init.sh

@@ -295,7 +295,9 @@ get_architecture() {
         s390x)
             _cputype=s390x
             ;;
-
+        riscv64)
+            _cputype=riscv64gc
+            ;;
         *)
             err "unknown CPU type: $_cputype"
 
@@ -321,6 +323,9 @@ get_architecture() {
                     _ostype="${_ostype}eabihf"
                 fi
                 ;;
+            riscv64gc)
+                err "riscv64 with 32-bit userland unsupported"
+                ;;
         esac
     fi
 

src/dist/dist.rs

@@ -90,6 +90,7 @@ static LIST_ARCHS: &[&str] = &[
     "powerpc",
     "powerpc64",
     "powerpc64le",
+    "riscv64gc",
     "s390x",
 ];
 static LIST_OSES: &[&str] = &[

tests/mock/clitools.rs

@@ -980,6 +980,8 @@ pub fn this_host_triple() -> String {
             "i686"
         } else if cfg!(target_arch = "x86_64") {
             "x86_64"
+        } else if cfg!(target_arch = "riscv64") {
+            "riscv64gc"
         } else {
             unimplemented!()
         };