2 files changed, 28 insertions, 14 deletions

diff --git a/meta/classes-recipe/rust-target-config.bbclass b/meta/classes-recipe/rust-target-config.bbclass
index 9e1d81bf5c..2710b4325d 100644
--- a/meta/classes-recipe/rust-target-config.bbclass
+++ b/meta/classes-recipe/rust-target-config.bbclass
@@ -231,19 +231,19 @@ TARGET_POINTER_WIDTH[powerpc64le] = "64"
 TARGET_C_INT_WIDTH[powerpc64le] = "64"
 MAX_ATOMIC_WIDTH[powerpc64le] = "64"
 
-## riscv32-unknown-linux-{gnu, musl}
-DATA_LAYOUT[riscv32] = "e-m:e-p:32:32-i64:64-n32-S128"
-TARGET_ENDIAN[riscv32] = "little"
-TARGET_POINTER_WIDTH[riscv32] = "32"
-TARGET_C_INT_WIDTH[riscv32] = "32"
-MAX_ATOMIC_WIDTH[riscv32] = "32"
-
-## riscv64-unknown-linux-{gnu, musl}
-DATA_LAYOUT[riscv64] = "e-m:e-p:64:64-i64:64-i128:128-n64-S128"
-TARGET_ENDIAN[riscv64] = "little"
-TARGET_POINTER_WIDTH[riscv64] = "64"
-TARGET_C_INT_WIDTH[riscv64] = "64"
-MAX_ATOMIC_WIDTH[riscv64] = "64"
+## riscv32gc-unknown-linux-{gnu, musl}
+DATA_LAYOUT[riscv32gc] = "e-m:e-p:32:32-i64:64-n32-S128"
+TARGET_ENDIAN[riscv32gc] = "little"
+TARGET_POINTER_WIDTH[riscv32gc] = "32"
+TARGET_C_INT_WIDTH[riscv32gc] = "32"
+MAX_ATOMIC_WIDTH[riscv32gc] = "32"
+
+## riscv64gc-unknown-linux-{gnu, musl}
+DATA_LAYOUT[riscv64gc] = "e-m:e-p:64:64-i64:64-i128:128-n64-S128"
+TARGET_ENDIAN[riscv64gc] = "little"
+TARGET_POINTER_WIDTH[riscv64gc] = "64"
+TARGET_C_INT_WIDTH[riscv64gc] = "64"
+MAX_ATOMIC_WIDTH[riscv64gc] = "64"
 
 # Convert a normal arch (HOST_ARCH, TARGET_ARCH, BUILD_ARCH, etc) to something
 # rust's internals won't choke on.
@@ -258,9 +258,21 @@ def arch_to_rust_target_arch(arch):
         return "arm"
     elif arch == "powerpc64le":
         return "powerpc64"
+    elif arch == "riscv32gc":
+        return "riscv32"
+    elif arch == "riscv64gc":
+        return "riscv64"
     else:
         return arch
 
+# Convert a rust target string to a llvm-compatible triplet
+def rust_sys_to_llvm_target(sys):
+    if sys.startswith('riscv32gc-'):
+        return sys.replace('riscv32gc-', 'riscv32-', 1)
+    if sys.startswith('riscv64gc-'):
+        return sys.replace('riscv64gc-', 'riscv64-', 1)
+    return sys
+
 # generates our target CPU value
 def llvm_cpu(d):
     cpu = d.getVar('PACKAGE_ARCH')
@@ -334,7 +346,7 @@ def rust_gen_target(d, thing, wd, arch):
 
     # build tspec
     tspec = {}
-    tspec['llvm-target'] = rustsys
+    tspec['llvm-target'] = rust_sys_to_llvm_target(rustsys)
     tspec['data-layout'] = d.getVarFlag('DATA_LAYOUT', arch_abi)
     if tspec['data-layout'] is None:
         bb.fatal("No rust target defined for %s" % arch_abi)
diff --git a/meta/lib/oe/rust.py b/meta/lib/oe/rust.py
index 1dc9cf150d..185553eeeb 100644
--- a/meta/lib/oe/rust.py
+++ b/meta/lib/oe/rust.py
@@ -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