1 /* Fault handler information. Cygwin 1.5.x version.
2 Copyright (C) 2009 Eric Blake <ebb9@byu.net>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2, or (at your option)
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software Foundation,
16 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
18 /* Cygwin 1.5.x sets siginfo_t.si_addr to the instruction that faulted, not
19 the address that the instruction tried to access. This is fixed in
20 Cygwin 1.7. As a workaround, we use the fault address that was included
21 in the EXCEPTION_POINTERS structure when Win32 signalled the exception.
22 main_exception_filter stores this fault address before it passes control to
23 Cygwin's exception filter which ultimately invokes the Unix signal
26 #define SIGSEGV_FAULT_HANDLER_ARGLIST int sig, siginfo_t *sip, void *context
27 #define SIGSEGV_FAULT_ADDRESS last_seen_fault_address