58 lines
1.5 KiB
C++
58 lines
1.5 KiB
C++
/* exception.h
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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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#define exception_list void
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typedef struct _DISPATCHER_CONTEXT *PDISPATCHER_CONTEXT;
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class exception
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{
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static EXCEPTION_DISPOSITION myfault (EXCEPTION_RECORD *, exception_list *,
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CONTEXT *, PDISPATCHER_CONTEXT);
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static EXCEPTION_DISPOSITION handle (EXCEPTION_RECORD *, exception_list *,
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CONTEXT *, PDISPATCHER_CONTEXT);
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public:
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exception () __attribute__ ((always_inline))
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{
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/* Install SEH handler. */
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asm volatile ("\n\
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1: \n\
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.seh_handler \
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_ZN9exception6handleEP17_EXCEPTION_RECORDPvP8_CONTEXTP19_DISPATCHER_CONTEXT, \
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@except \n\
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.seh_handlerdata \n\
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.long 1 \n\
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.rva 1b, 2f, 2f, 2f \n\
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.seh_code \n");
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};
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~exception () __attribute__ ((always_inline))
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{
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asm volatile ("\n\
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nop \n\
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2: \n\
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nop \n");
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}
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};
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LONG CALLBACK myfault_altstack_handler (EXCEPTION_POINTERS *);
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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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HANDLE h;
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void dump_exception ();
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void open_stackdumpfile ();
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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), h (NULL) {}
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void dumpstack ();
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PCONTEXT context () const {return ctx;}
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EXCEPTION_RECORD *exception_record () const {return e;}
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};
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