diff --git a/clang/lib/Driver/ToolChains/Linux.cpp b/clang/lib/Driver/ToolChains/Linux.cpp
--- a/clang/lib/Driver/ToolChains/Linux.cpp
+++ b/clang/lib/Driver/ToolChains/Linux.cpp
@@ -126,6 +126,8 @@
   case llvm::Triple::ppc64le:
     return "powerpc64le-linux-gnu";
   case llvm::Triple::riscv64:
+    if (IsAndroid)
+      return "riscv64-linux-android";
     return "riscv64-linux-gnu";
   case llvm::Triple::sparc:
     return "sparc-linux-gnu";
diff --git a/compiler-rt/cmake/Modules/AllSupportedArchDefs.cmake b/compiler-rt/cmake/Modules/AllSupportedArchDefs.cmake
--- a/compiler-rt/cmake/Modules/AllSupportedArchDefs.cmake
+++ b/compiler-rt/cmake/Modules/AllSupportedArchDefs.cmake
@@ -42,7 +42,7 @@
 elseif (OS_NAME MATCHES "Windows")
   set(ALL_FUZZER_SUPPORTED_ARCH ${X86} ${X86_64})
 elseif(OS_NAME MATCHES "Android")
-  set(ALL_FUZZER_SUPPORTED_ARCH ${X86} ${X86_64} ${ARM32} ${ARM64})
+  set(ALL_FUZZER_SUPPORTED_ARCH ${X86} ${X86_64} ${ARM32} ${ARM64} ${RISCV64})
 else()
   set(ALL_FUZZER_SUPPORTED_ARCH ${X86_64} ${ARM64})
 endif()
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_linux.h b/compiler-rt/lib/sanitizer_common/sanitizer_linux.h
--- a/compiler-rt/lib/sanitizer_common/sanitizer_linux.h
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_linux.h
@@ -152,6 +152,9 @@
                "rdhwr   %0,$29\n" \
                ".set    pop\n" : "=r"(__v)); \
        __v; })
+#elif defined (__riscv)
+# define __get_tls() \
+    ({ void** __v; __asm__("mv %0, tp" : "=r"(__v)); __v; })
 #elif defined(__i386__)
 # define __get_tls() \
     ({ void** __v; __asm__("movl %%gs:0, %0" : "=r"(__v)); __v; })