1 files changed, 57 insertions, 0 deletions
diff --git a/winsup/cygwin/local_includes/exception.h b/winsup/cygwin/local_includes/exception.h
new file mode 100644
index 000000000..13159d17b
--- /dev/null
+++ b/winsup/cygwin/local_includes/exception.h
@@ -0,0 +1,57 @@
+/* exception.h
+
+This software is a copyrighted work licensed under the terms of the
+Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
+details. */
+
+#pragma once
+
+#define exception_list void
+typedef struct _DISPATCHER_CONTEXT *PDISPATCHER_CONTEXT;
+
+class exception
+{
+  static EXCEPTION_DISPOSITION myfault (EXCEPTION_RECORD *, exception_list *,
+					CONTEXT *, PDISPATCHER_CONTEXT);
+  static EXCEPTION_DISPOSITION handle (EXCEPTION_RECORD *, exception_list *,
+				       CONTEXT *, PDISPATCHER_CONTEXT);
+public:
+  exception () __attribute__ ((always_inline))
+  {
+    /* Install SEH handler. */
+    asm volatile ("\n\
+    1:									\n\
+      .seh_handler							  \
+	_ZN9exception6handleEP17_EXCEPTION_RECORDPvP8_CONTEXTP19_DISPATCHER_CONTEXT,	  \
+	@except								\n\
+      .seh_handlerdata							\n\
+      .long 1								\n\
+      .rva 1b, 2f, 2f, 2f						\n\
+      .seh_code								\n");
+  };
+  ~exception () __attribute__ ((always_inline))
+  {
+    asm volatile ("\n\
+      nop								\n\
+    2:									\n\
+      nop								\n");
+  }
+};
+
+LONG CALLBACK myfault_altstack_handler (EXCEPTION_POINTERS *);
+
+class cygwin_exception
+{
+  PUINT_PTR framep;
+  PCONTEXT ctx;
+  EXCEPTION_RECORD *e;
+  HANDLE h;
+  void dump_exception ();
+  void open_stackdumpfile ();
+public:
+  cygwin_exception (PUINT_PTR in_framep, PCONTEXT in_ctx = NULL, EXCEPTION_RECORD *in_e = NULL):
+    framep (in_framep), ctx (in_ctx), e (in_e), h (NULL) {}
+  void dumpstack ();
+  PCONTEXT context () const {return ctx;}
+  EXCEPTION_RECORD *exception_record () const {return e;}
+};