1 files changed, 60 insertions, 0 deletions
diff --git a/winsup/mingw/samples/seh/sehfix.c b/winsup/mingw/samples/seh/sehfix.c
new file mode 100644
index 000000000..1a414e649
--- /dev/null
+++ b/winsup/mingw/samples/seh/sehfix.c
@@ -0,0 +1,60 @@
+/*
+ * sehfix.c
+ *
+ * A test program involving an exception handler that fixes the exception
+ * causing condition.
+ *
+ * In this code we install an exception handler my_handler and then a piece
+ * of inline assembly attempts to write at the address marked in eax, after
+ * setting eax to 10. This should produce an exception. The handler then
+ * changes the eax register of the exception context to be the address of
+ * a static variable and restarts the code. This should allow everything
+ * to continue.
+ */
+
+#include <windows.h>
+#include <excpt.h>
+
+#include "exutil.h"
+
+int	x;
+
+EXCEPTION_DISPOSITION
+my_handler (
+	struct _EXCEPTION_RECORD* pExceptionRec,
+	void* pEstablisherFrame,
+	struct _CONTEXT* pContextRecord,
+	void* pDispatcherContext
+	)
+{
+	printf ("In my exception handler!\n");
+	DumpExceptionRecord (pExceptionRec);
+	pContextRecord->Eax = (DWORD) &x;
+	return ExceptionContinueExecution;
+}
+
+main ()
+{
+	x = 2;
+
+	printf ("x = %d\n", x);
+
+	WalkExceptionHandlers();
+
+	__try1(my_handler)
+
+	WalkExceptionHandlers();
+
+	/* This assembly code should produce an exception. */
+	__asm__("movl $10,%%eax;movl $1,(%%eax);" : : : "%eax");
+
+	__except1
+
+	WalkExceptionHandlers();
+
+	printf ("x = %d\n", x);
+
+	printf ("Finished!\n");
+}
+
+