Add back in __gxx_personality_v0

system/lib/libcxxabi/src/cxa_exception_emscripten.cpp

@@ -11,10 +11,23 @@
 #include "cxa_exception.h"
 #include "private_typeinfo.h"
 #include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
 
 #if defined(__USING_EMSCRIPTEN_EXCEPTIONS__) ||                                \
   defined(__USING_WASM_EXCEPTIONS__)
 
+// TODO: Remove this when Rust doesn't need it anymore.
+// https://github.com/rust-lang/rust/pull/97888
+extern "C" _LIBCXXABI_FUNC_VIS _Unwind_Reason_Code
+__gxx_personality_v0(int version,
+                     _Unwind_Action actions,
+                     uint64_t exceptionClass,
+                     _Unwind_Exception* unwind_exception,
+                     _Unwind_Context* context) {
+    abort();
+}
+
 using namespace __cxxabiv1;
 
 //  Some utility routines are copied from cxa_exception.cpp

tests/test_other.py

@@ -12155,3 +12155,27 @@ def test_print_map(self):
     self.assertContained('hello_world.o:(__original_main)', out)
     out2 = self.run_process([EMCC, 'hello_world.o', '-Wl,-M'], stdout=PIPE).stdout
     self.assertEqual(out, out2)
+
+  def test_rust_gxx_personality_v0(self):
+    create_file('main.cpp', r'''
+      #include <stdio.h>
+      #include <stdint.h>
+      extern "C" {
+        int __gxx_personality_v0(int version, void* actions, uint64_t exception_class, void* exception_object, void* context);
+        int main() {
+          __gxx_personality_v0(0, NULL, 0, NULL, NULL);
+          return 0;
+        }
+      }
+    ''')
+    self.run_process([EMXX, '-c', 'main.cpp', '-fexceptions'])
+
+    self.run_process([EMXX, '-o', 'main.js', 'main.o', '-fexceptions'] + self.get_emcc_args())
+
+    try:
+      self.do_run('main.js', no_build=True)
+      raise RuntimeError('should not have passed')
+    except AssertionError as e:
+      err = e
+    assert "Aborted(native code called abort())" in err.args[0]
+    del err

tools/system_libs.py

@@ -1228,6 +1228,7 @@ def get_files(self):
       'private_typeinfo.cpp',
       'cxa_exception_emscripten.cpp',
     ]
+    print("HI!")
     if self.eh_mode == Exceptions.NONE:
       filenames += ['cxa_noexception.cpp']
     elif self.eh_mode == Exceptions.WASM: