[WASM] Remove rpath flag and link objects using llvm-ar instead of ar

Author: kateinoigakukun

lib/Driver/UnixToolChains.cpp

@@ -346,7 +346,12 @@ toolchains::GenericUnix::constructInvocation(const StaticLinkJobAction &job,
   ArgStringList Arguments;
 
   // Configure the toolchain.
-  const char *AR = "ar";
+  const char *AR;
+  if (getTriple().isOSBinFormatWasm()) {
+    AR = "llvm-ar";
+  } else {
+    AR = "ar";
+  }
   Arguments.push_back("crs");
 
   Arguments.push_back(

test/lit.cfg

@@ -1226,7 +1226,7 @@ elif run_os == 'wasi':
 
     config.target_object_format = "wasm"
     config.target_shared_library_prefix = 'lib'
-    config.target_shared_library_suffix = ".so"
+    config.target_shared_library_suffix = ".a"
     config.target_sdk_name = "wasi"
     config.target_runtime = "native"
 
@@ -1246,7 +1246,7 @@ elif run_os == 'wasi':
     config.target_build_swift_dylib = (
         "%s -parse-as-library -emit-library -o '\\1'"
         % (config.target_build_swift))
-    config.target_add_rpath = r'-Xlinker -rpath -Xlinker \1'
+    config.target_add_rpath = ''
     config.target_swift_frontend = (
         '%s -frontend -target %s %s %s %s %s '
         % (config.swift, config.variant_triple, resource_dir_opt, mcp_opt,