claude is gud

1 files changed, 26 insertions, 0 deletions

diff --git a/vere/pkg/noun/platform/windows/veh_handler.c b/vere/pkg/noun/platform/windows/veh_handler.c
new file mode 100644
index 0000000..d2a035c
--- /dev/null
+++ b/vere/pkg/noun/platform/windows/veh_handler.c
@@ -0,0 +1,26 @@
+#include "noun.h"
+#include "rsignal.h"
+
+c3_i
+u3m_fault(void* adr_v, c3_i ser_i);
+
+/* _windows_exception_filter: replaces libsigsegv on windows
+   using vectored exception handling
+ */
+LONG WINAPI
+_windows_exception_filter(struct _EXCEPTION_POINTERS *ExceptionInfo)
+{
+  EXCEPTION_RECORD ExceptionRecord = *ExceptionInfo->ExceptionRecord;
+  if (ExceptionRecord.ExceptionCode == EXCEPTION_ACCESS_VIOLATION &&
+      ExceptionRecord.ExceptionInformation[0] == 1 &&
+      u3m_fault((void*)ExceptionRecord.ExceptionInformation[1], 1))
+    {
+      return EXCEPTION_CONTINUE_EXECUTION;
+    }
+
+  if (ExceptionRecord.ExceptionCode == EXCEPTION_STACK_OVERFLOW) {
+    rsignal_raise(SIGSTK);
+  }
+
+  return EXCEPTION_CONTINUE_SEARCH;
+}