diff --git a/libunwind/test/configs/llvm-libunwind-shared.cfg.in b/libunwind/test/configs/llvm-libunwind-shared.cfg.in
--- a/libunwind/test/configs/llvm-libunwind-shared.cfg.in
+++ b/libunwind/test/configs/llvm-libunwind-shared.cfg.in
@@ -47,7 +47,7 @@
     '-nostdinc++ -I {}/include {}'.format('@LIBUNWIND_SOURCE_DIR@', ' '.join(compile_flags))
 ))
 config.substitutions.append(('%{link_flags}',
-    '-nodefaultlibs -L {0} -Wl,-rpath,{0} -lunwind -ldl -lc {1}'.format('@LIBUNWIND_LIBRARY_DIR@', ' '.join(link_flags))
+    '-L {0} -Wl,-rpath,{0} -lunwind -ldl {1}'.format('@LIBUNWIND_LIBRARY_DIR@', ' '.join(link_flags))
 ))
 config.substitutions.append(('%{exec}', ''))
 
diff --git a/libunwind/test/configs/llvm-libunwind-static.cfg.in b/libunwind/test/configs/llvm-libunwind-static.cfg.in
--- a/libunwind/test/configs/llvm-libunwind-static.cfg.in
+++ b/libunwind/test/configs/llvm-libunwind-static.cfg.in
@@ -29,8 +29,6 @@
 if not @LIBUNWIND_ENABLE_THREADS@:
     compile_flags.append('-D_LIBUNWIND_HAS_NO_THREADS')
     config.available_features.add('libunwind-no-threads')
-else:
-    link_flags.append('-lpthread')
 
 if @LIBUNWIND_ENABLE_CET@:
     compile_flags.append('-fcf-protection=full')
@@ -49,7 +47,7 @@
     '-nostdinc++ -I {}/include {}'.format('@LIBUNWIND_SOURCE_DIR@', ' '.join(compile_flags))
 ))
 config.substitutions.append(('%{link_flags}',
-    '-nodefaultlibs {}/libunwind.a -ldl -lc {}'.format('@LIBUNWIND_LIBRARY_DIR@', ' '.join(link_flags))
+    '{}/libunwind.a -ldl {}'.format('@LIBUNWIND_LIBRARY_DIR@', ' '.join(link_flags))
 ))
 config.substitutions.append(('%{exec}', ''))
 
diff --git a/libunwind/test/forceunwind.pass.cpp b/libunwind/test/forceunwind.pass.cpp
--- a/libunwind/test/forceunwind.pass.cpp
+++ b/libunwind/test/forceunwind.pass.cpp
@@ -9,9 +9,6 @@
 
 // REQUIRES: linux
 
-// TODO: Investigate these failures
-// XFAIL: asan, tsan, ubsan
-
 // Basic test for _Unwind_ForcedUnwind.
 // See libcxxabi/test/forced_unwind* tests too.
 
diff --git a/libunwind/test/frameheadercache_test.pass.cpp b/libunwind/test/frameheadercache_test.pass.cpp
--- a/libunwind/test/frameheadercache_test.pass.cpp
+++ b/libunwind/test/frameheadercache_test.pass.cpp
@@ -1,6 +1,3 @@
-// TODO: Investigate these failures
-// XFAIL: asan, tsan, ubsan
-
 // The other libunwind tests don't test internal interfaces, so the include path
 // is a little wonky.
 #include "../src/config.h"
diff --git a/libunwind/test/libunwind_01.pass.cpp b/libunwind/test/libunwind_01.pass.cpp
--- a/libunwind/test/libunwind_01.pass.cpp
+++ b/libunwind/test/libunwind_01.pass.cpp
@@ -1,6 +1,3 @@
-// TODO: Investigate these failures
-// XFAIL: asan, tsan, ubsan
-
 // TODO: Investigate these failures on x86_64 macOS back deployment
 // UNSUPPORTED: target=x86_64-apple-darwin{{.+}}
 
diff --git a/libunwind/test/libunwind_02.pass.cpp b/libunwind/test/libunwind_02.pass.cpp
--- a/libunwind/test/libunwind_02.pass.cpp
+++ b/libunwind/test/libunwind_02.pass.cpp
@@ -1,6 +1,3 @@
-// TODO: Investigate these failures
-// XFAIL: asan, tsan, ubsan
-
 #include <assert.h>
 #include <stdlib.h>
 #include <unwind.h>
diff --git a/libunwind/test/remember_state_leak.pass.sh.s b/libunwind/test/remember_state_leak.pass.sh.s
--- a/libunwind/test/remember_state_leak.pass.sh.s
+++ b/libunwind/test/remember_state_leak.pass.sh.s
@@ -2,9 +2,6 @@
 # RUN: %{build}
 # RUN: %{run}
 
-// TODO: Investigate these failures
-// XFAIL: asan, tsan, ubsan
-
 // TODO: Investigate this failure
 // XFAIL: 32bits-on-64bits
 
diff --git a/libunwind/test/signal_frame.pass.cpp b/libunwind/test/signal_frame.pass.cpp
--- a/libunwind/test/signal_frame.pass.cpp
+++ b/libunwind/test/signal_frame.pass.cpp
@@ -9,9 +9,6 @@
 
 // Ensure that functions marked as signal frames are reported as such.
 
-// TODO: Investigate these failures
-// XFAIL: asan, tsan, ubsan
-
 // TODO: Investigate this failure on macOS
 // XFAIL: target={{.+}}-apple-darwin{{.+}}
 
diff --git a/libunwind/test/signal_unwind.pass.cpp b/libunwind/test/signal_unwind.pass.cpp
--- a/libunwind/test/signal_unwind.pass.cpp
+++ b/libunwind/test/signal_unwind.pass.cpp
@@ -10,9 +10,6 @@
 // Ensure that the unwinder can cope with the signal handler.
 // REQUIRES: linux && (target={{aarch64-.+}} || target={{x86_64-.+}})
 
-// TODO: Investigate these failures
-// XFAIL: asan, tsan, ubsan
-
 #include <assert.h>
 #include <dlfcn.h>
 #include <signal.h>
diff --git a/libunwind/test/unw_getcontext.pass.cpp b/libunwind/test/unw_getcontext.pass.cpp
--- a/libunwind/test/unw_getcontext.pass.cpp
+++ b/libunwind/test/unw_getcontext.pass.cpp
@@ -1,6 +1,3 @@
-// TODO: Investigate these failures
-// XFAIL: asan, tsan, ubsan
-
 #include <assert.h>
 #include <libunwind.h>
 
diff --git a/libunwind/test/unwind_leaffunction.pass.cpp b/libunwind/test/unwind_leaffunction.pass.cpp
--- a/libunwind/test/unwind_leaffunction.pass.cpp
+++ b/libunwind/test/unwind_leaffunction.pass.cpp
@@ -10,9 +10,6 @@
 // Ensure that leaf function can be unwund.
 // REQUIRES: linux && (target={{aarch64-.+}} || target={{x86_64-.+}})
 
-// TODO: Investigate these failures
-// XFAIL: asan, tsan, ubsan
-
 #include <assert.h>
 #include <dlfcn.h>
 #include <signal.h>