--- a/src/core/lib/gprpp/crash.cc	(index)
+++ b/src/core/lib/gprpp/crash.cc	(working tree)
@@ -23,12 +23,24 @@
 
 #include <grpc/support/log.h>
 
+namespace {
+    grpc_core::CustomCrashFunction custom_crash;
+}
+
 namespace grpc_core {
 
+void SetCustomCrashFunction(CustomCrashFunction fn) {
+    custom_crash = fn;
+}
+
 void Crash(y_absl::string_view message, SourceLocation location) {
   gpr_log(location.file(), location.line(), GPR_LOG_SEVERITY_ERROR, "%s",
           TString(message).c_str());
-  abort();
+  if (custom_crash) {
+      custom_crash(location.file(), location.line(), TString(message).c_str());
+  } else {
+      abort();
+  }
 }
 
 }  // namespace grpc_core
--- a/src/core/lib/gprpp/crash.h	(index)
+++ b/grpc/src/core/lib/gprpp/crash.h	(working tree)
@@ -15,6 +15,8 @@
 #ifndef GRPC_SRC_CORE_LIB_GPRPP_CRASH_H
 #define GRPC_SRC_CORE_LIB_GPRPP_CRASH_H
 
+#include <functional>
+
 #include <grpc/support/port_platform.h>
 
 #include "y_absl/strings/string_view.h"
@@ -23,6 +25,9 @@
 
 namespace grpc_core {
 
+typedef std::function<void(const char*, int, const char*)> CustomCrashFunction;
+void SetCustomCrashFunction(CustomCrashFunction fn);
+
 // Crash the program after printing `message`.
 // ::grpc_core:: prefix to SourceLocation is required to work around a symbol
 // mismatch bug on MSVC.