69 lines
1.7 KiB
C++
69 lines
1.7 KiB
C++
/* exception.h
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Copyright 2010, 2011, 2012, 2013 Red Hat, Inc.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#pragma once
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#ifdef __x86_64__
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#define _exception_list _EXCEPTION_REGISTRATION_RECORD
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#endif
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#include <exceptions.h>
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#ifndef __x86_64__
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extern exception_list *_except_list asm ("%fs:0");
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#endif
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class exception
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{
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#ifdef __x86_64__
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static bool handler_installed;
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static int handle (LPEXCEPTION_POINTERS);
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#else
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exception_list el;
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exception_list *save;
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static int handle (EXCEPTION_RECORD *, exception_list *, CONTEXT *, void *);
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#endif
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public:
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exception () __attribute__ ((always_inline))
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{
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#ifdef __x86_64__
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if (!handler_installed)
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{
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handler_installed = true;
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/* The unhandled exception filter goes first. It won't work if the
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executable is debugged, but then the vectored continue handler
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kicks in. For some reason the vectored continue handler doesn't
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get called if no unhandled exception filter is installed. */
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SetUnhandledExceptionFilter (handle);
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AddVectoredContinueHandler (1, handle);
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}
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#else
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save = _except_list;
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el.handler = handle;
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el.prev = _except_list;
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_except_list = ⪙
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#endif
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};
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#ifndef __x86_64__
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~exception () __attribute__ ((always_inline)) { _except_list = save; }
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#endif
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};
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class cygwin_exception
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{
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PUINT_PTR framep;
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PCONTEXT ctx;
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EXCEPTION_RECORD *e;
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void dump_exception ();
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public:
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cygwin_exception (PUINT_PTR in_framep, PCONTEXT in_ctx = NULL, EXCEPTION_RECORD *in_e = NULL):
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framep (in_framep), ctx (in_ctx), e (in_e) {}
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void dumpstack ();
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PCONTEXT context () const {return ctx;}
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};
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