Improve reporting of fatal exception on MS-Windows, to aid debugging #15994.

 src/w32fns.c (my_exception_handler): New function.
 (globals_of_w32fns): Set it up as the unhandled exception
 handler.  Initialize exception code and address to zeros.
 (emacs_abort): If the exception code and address are available,
 print them at the beginning of the backtrace.  Fix the format of
 printing addresses (was producing 0x0x12345678 on XP).

1 files changed, 11 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index db311bdcba5..a5c6668c551 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,14 @@
+2013-12-02  Eli Zaretskii  <eliz@gnu.org>
+
+        Improve reporting of fatal exception on MS-Windows.
+        * w32fns.c (my_exception_handler): New function.
+        (globals_of_w32fns): Set it up as the unhandled exception
+        handler.  Initialize exception code and address to zeros.
+        (emacs_abort): If the exception code and address are available,
+        print them at the beginning of the backtrace.  Fix the format of
+        printing addresses (was producing 0x0x12345678 on XP).
+        (Bug#15994)
+
 2013-12-02  Helmut Eller  <eller.helmut@gmail.com>
 
         * eval.c (Fbacktrace__locals): New function.