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exception_support.h: New header file.

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* libsupc++/exception_support.h: New header file.
	* libsupc++/vec.cc: Include it.
	(__cxa_vec_new2): Recatch exceptions before rethrows.
	(__cxa_vec_new3): Likewise.
	(__cxa_vec_ctor): Likewise.
	(__cxa_vec_cctor): Likewise.
	(__cxa_vec_dtor): Likewise.
	(__cxa_vec_delete2): Likewise.
	(__cxa_vec_delete3): Likewise.

From-SVN: r37554
This commit is contained in:
Mark Mitchell 2000-11-19 04:53:38 +00:00
parent 0657c69c32
commit b35431cf07
1 changed files with 66 additions and 0 deletions
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66
libstdc++-v3/libsupc++/exception_support.h Normal file
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// Copyright (C) 2000
// Free Software Foundation, Inc.
//
// GNU CC is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2, or (at your option)
// any later version.
// GNU CC is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with GNU CC; see the file COPYING. If not, write to
// the Free Software Foundation, 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA.
// As a special exception, you may use this file as part of a free software
// library without restriction. Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the GNU General Public License. This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.
#include "gansidecl.h" /* Needed to support macros used in eh-common.h. */
#include "eh-common.h"
/* The type of a function called to clean up an exception object.
(These will be destructors.) Under the old ABI, these take a
second argument (the `in-charge' argument), that indicates whether
or not do delete the object, and whether or not to destroy virtual
bases. Under the new ABI, there is no second argument. */
#if !defined (__GXX_ABI_VERSION) || __GXX_ABI_VERSION < 100
typedef void (*cleanup_fn)(void *, int);
/* The `2' is the value for the in-charge parameter that indicates
that virtual bases should be destroyed. */
#define CALL_CLEANUP(FN, THIS) FN (THIS, 2)
#else
typedef void (*cleanup_fn)(void *);
#define CALL_CLEANUP(FN, THIS) FN (THIS)
#endif
/* C++-specific state about the current exception. This must match
init_exception_processing().
Note that handlers and caught are not redundant; when rethrown, an
exception can have multiple active handlers and still be considered
uncaught. */
struct cp_eh_info
{
__eh_info eh_info;
void *value;
void *type;
cleanup_fn cleanup;
bool caught;
cp_eh_info *next;
long handlers;
void *original_value;
};
extern "C" cp_eh_info *__uncatch_exception (void);
extern "C" void __recatch_exception (cp_eh_info *);