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Prepare to rename/reuse struct ucontext.

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* cygtls.h (struct _cygtls): Convert thread_context to type CONTEXT.
	* exceptions.cc (_cygtls::signal_debugger): Use sizeof (CONTEXT) for
	size of CONTEXT copied for GDB's digestion.
	* include/cygwin/signal.h: Add a preliminary comment.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen
2015-03-30 16:53:52 +02:00
parent 03d5584c4b
commit 3fb21f9143
6 changed files with 120 additions and 112 deletions
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7
winsup/cygwin/exceptions.cc
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@ -1,7 +1,7 @@
/* exceptions.cc
Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 Red Hat, Inc.
Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015 Red Hat, Inc.
This file is part of Cygwin.
@ -1526,8 +1526,7 @@ _cygtls::signal_debugger (siginfo_t& si)
#else
c.Eip = retaddr ();
#endif
memcpy (&thread_context, &c, (&thread_context._internal -
(unsigned char *) &thread_context));
memcpy (&thread_context, &c, sizeof (CONTEXT));
/* Enough space for 32/64 bit addresses */
char sigmsg[2 * sizeof (_CYGWIN_SIGNAL_STRING " ffffffff ffffffffffffffff")];
__small_sprintf (sigmsg, _CYGWIN_SIGNAL_STRING " %d %y %p", si.si_signo,