diff --git a/offload/DeviceRTL/src/Debug.cpp b/offload/DeviceRTL/src/Debug.cpp
index 31cd54e3de35ce..4e16591cc6c510 100644
--- a/offload/DeviceRTL/src/Debug.cpp
+++ b/offload/DeviceRTL/src/Debug.cpp
@@ -26,8 +26,8 @@ using namespace ompx;
 extern "C" {
 void __assert_assume(bool condition) { __builtin_assume(condition); }
 
-void __assert_fail(const char *expr, const char *file, unsigned line,
-                   const char *function) {
+[[gnu::weak]] void __assert_fail(const char *expr, const char *file,
+                                 unsigned line, const char *function) {
   __assert_fail_internal(expr, nullptr, file, line, function);
 }
 void __assert_fail_internal(const char *expr, const char *msg, const char *file,
diff --git a/offload/DeviceRTL/src/LibC.cpp b/offload/DeviceRTL/src/LibC.cpp
index e587c3057f5ba5..4bca5d29643fe9 100644
--- a/offload/DeviceRTL/src/LibC.cpp
+++ b/offload/DeviceRTL/src/LibC.cpp
@@ -49,7 +49,7 @@ int32_t omp_vprintf(const char *Format, void *Arguments, uint32_t) {
 
 extern "C" {
 
-int memcmp(const void *lhs, const void *rhs, size_t count) {
+[[gnu::weak]] int memcmp(const void *lhs, const void *rhs, size_t count) {
   auto *L = reinterpret_cast<const unsigned char *>(lhs);
   auto *R = reinterpret_cast<const unsigned char *>(rhs);
 
@@ -60,7 +60,7 @@ int memcmp(const void *lhs, const void *rhs, size_t count) {
   return 0;
 }
 
-void memset(void *dst, int C, size_t count) {
+[[gnu::weak]] void memset(void *dst, int C, size_t count) {
   auto *dstc = reinterpret_cast<char *>(dst);
   for (size_t I = 0; I < count; ++I)
     dstc[I] = C;