mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-25 04:01:10 +00:00
9fc813e1a3
This will be used to consolidate the libgcc_s access for backtrace and pthread_cancel. Unlike the existing backtrace implementations, it provides some hardening based on pointer mangling. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
36 lines
1.4 KiB
C
36 lines
1.4 KiB
C
/* Dynamic loading of the libgcc unwinder. m68k customization.
|
|
Copyright (C) 2021 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#ifndef _ARCH_UNWIND_LINK_H
|
|
#define _ARCH_UNWIND_LINK_H
|
|
|
|
#define UNWIND_LINK_GETIP 1
|
|
#define UNWIND_LINK_FRAME_ADJUSTMENT 0
|
|
#define UNWIND_LINK_EXTRA_FIELDS \
|
|
__typeof (_Unwind_GetGR) *ptr__Unwind_GetGR;
|
|
#define UNWIND_LINK_EXTRA_INIT \
|
|
local.ptr__Unwind_GetGR \
|
|
= __libc_dlsym (local_libgcc_handle, "_Unwind_GetGR"); \
|
|
assert (local.ptr__Unwind_GetGR != NULL); \
|
|
PTR_MANGLE (local.ptr__Unwind_GetGR);
|
|
|
|
/* This is overriden by the m680x0 variant. */
|
|
#define UNWIND_LINK_FRAME_STATE_FOR 0
|
|
|
|
#endif /* _ARCH_UNWIND_LINK_H */
|