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Add cygwin_internal() operation to retrieve the EXCEPTION_RECORD from a siginfo_t *

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* external.cc (cygwin_internal): Add operation to retrieve a copy
	of the EXCEPTION_RECORD from a siginfo_t *.
	* include/sys/cygwin.h (cygwin_getinfo_types): Ditto.
	* exception.h (cygwin_exception): Add exception_record accessor.

Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
This commit is contained in:
Jon TURNEY
2015-03-30 20:56:03 +01:00
parent abf6791ecb
commit 431b28c196
4 changed files with 26 additions and 1 deletions
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14
winsup/cygwin/external.cc
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@@ -27,6 +27,7 @@ details. */
#include "environ.h"
#include "cygserver_setpwd.h"
#include "pwdgrp.h"
#include "exception.h"
#include <unistd.h>
#include <stdlib.h>
#include <wchar.h>
@@ -688,6 +689,19 @@ cygwin_internal (cygwin_getinfo_types t, ...)
res = 0;
break;
case CW_EXCEPTION_RECORD_FROM_SIGINFO_T:
{
siginfo_t *si = va_arg(arg, siginfo_t *);
EXCEPTION_RECORD *er = va_arg(arg, EXCEPTION_RECORD *);
if (si && si->si_cyg && er)
{
memcpy(er, ((cygwin_exception *)si->si_cyg)->exception_record(),
sizeof(EXCEPTION_RECORD));
res = 0;
}
}
break;
default:
set_errno (ENOSYS);
}