| // Copyright (C) 2012-2019 Free Software Foundation, Inc. |
| // |
| // This file is part of GCC. |
| // |
| // GCC 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 3, or (at your option) |
| // any later version. |
| |
| // GCC 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. |
| |
| // Under Section 7 of GPL version 3, you are granted additional |
| // permissions described in the GCC Runtime Library Exception, version |
| // 3.1, as published by the Free Software Foundation. |
| |
| // You should have received a copy of the GNU General Public License and |
| // a copy of the GCC Runtime Library Exception along with this program; |
| // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
| // <http://www.gnu.org/licenses/>. |
| |
| #ifndef _VTV_FAIL_H |
| #define _VTV_FAIL_H 1 |
| |
| /* __vtv_really_fail prints a backtrace and a memory dump, then calls |
| abort. It is here for programmers to call, presumably from |
| __vtv_verify_fail, if they choose to overwrite the standard |
| __vtv_verify_fail with one of their own. Programmers should NOT |
| attempt to rewrite __vtv_really_fail. */ |
| |
| extern void |
| __vtv_really_fail (const char *fail_msg) |
| __attribute__ ((visibility ("default"), noreturn, nothrow)); |
| |
| /* __vtv_verify_fail is the function that gets called if the vtable |
| verification code discovers a vtable pointer that it cannot verify |
| as valid. Normally __vtv_verify_fail calls __vtv_really_fail. |
| However programmers can write and link in their own version of |
| __vtv_verify_fail, if they wish to do some kind of secondary |
| verification, for example. The main verification code assumes that |
| IF __vtv_verify_fail returns, then some kind of secondary |
| verification was done AND that the secondary verification succeeded, |
| i.e. that the vtable pointer is actually valid and ok to use. If |
| the secondary verification fails, then __vtv_verify_fail should not |
| return. */ |
| |
| extern void |
| __vtv_verify_fail (void **data_set_ptr, const void *vtbl_pointer) |
| __attribute__((visibility ("default"), nothrow)); |
| |
| extern void |
| __vtv_verify_fail_debug (void **data_set_ptr, const void *vtbl_pointer, |
| const char *debug_msg) |
| __attribute__((visibility ("default"), nothrow)); |
| |
| #endif /* _VTV_FAIL_H */ |