* sigproc.h [sigthread]: Add exception field.

[sigframe::~sigframe]: Clear exception field.
[sigframe::set]: Set exception field from caller.
* sigproc.cc (sig_send): Set exception field when frame pointer is passed in.
* exceptions.cc (interrupt_on_return): Always treat exception as interruptible.

1 files changed, 4 insertions, 1 deletions

diff --git a/winsup/cygwin/sigproc.h b/winsup/cygwin/sigproc.h
index 9d8a8c520..c239f5fe7 100644
--- a/winsup/cygwin/sigproc.h
+++ b/winsup/cygwin/sigproc.h
@@ -40,6 +40,7 @@ struct sigthread
   DWORD frame;
   CRITICAL_SECTION lock;
   LONG winapi_lock;
+  BOOL exception;
   bool get_winapi_lock (int test = 0);
   void release_winapi_lock ();
   void init (const char *s);
@@ -55,6 +56,7 @@ private:
       {
 	EnterCriticalSection (&st->lock);
 	st->frame = 0;
+	st->exception = 0;
 	st->release_winapi_lock ();
 	LeaveCriticalSection (&st->lock);
 	st = NULL;
@@ -62,11 +64,12 @@ private:
   }
 
 public:
-  void set (sigthread &t, DWORD ebp)
+  void set (sigthread &t, DWORD ebp, bool is_exception = 0)
   {
     DWORD oframe = t.frame;
     st = &t;
     t.frame = ebp;
+    t.exception = is_exception;
     if (!oframe)
       t.get_winapi_lock ();
   }