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1d95b035c7
It's necessary to stub out __libc_disable_asynccancel and __libc_enable_asynccancel via rtld-stubbed-symbols because the new direct references to the unwinder result in symbol conflicts when the rtld exception handling from libc is linked in during the construction of librtld.map. unwind-forcedunwind.c is merged into unwind-resume.c. libc now needs the functions that were previously only used in libpthread. The GLIBC_PRIVATE exports of __libc_longjmp and __libc_siglongjmp are no longer needed, so switch them to hidden symbols. The symbol __pthread_unwind_next has been moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerva Zanella <adhemerval.zanella@linaro.org>
61 lines
1.8 KiB
C
61 lines
1.8 KiB
C
/* Copyright (C) 2003-2021 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Jakub Jelinek <jakub@redhat.com>.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, see <https://www.gnu.org/licenses/>. */
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#include <stdio.h>
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#include <gnu/lib-names.h>
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#include <unwind-link.h>
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#include <sysdep.h>
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#include <unwind-resume.h>
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static struct unwind_link *
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link (void)
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{
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struct unwind_link *unwind_link = __libc_unwind_link_get ();
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if (unwind_link == NULL)
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__libc_fatal (LIBGCC_S_SO " must be installed for unwinding to work\n");
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return unwind_link;
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}
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#if !HAVE_ARCH_UNWIND_RESUME
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void
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_Unwind_Resume (struct _Unwind_Exception *exc)
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{
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UNWIND_LINK_PTR (link (), _Unwind_Resume) (exc);
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}
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#endif
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_Unwind_Reason_Code
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__gcc_personality_v0 PERSONALITY_PROTO
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{
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return UNWIND_LINK_PTR (link (), personality) PERSONALITY_ARGS;
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}
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_Unwind_Reason_Code
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_Unwind_ForcedUnwind (struct _Unwind_Exception *exc, _Unwind_Stop_Fn stop,
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void *stop_argument)
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{
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return UNWIND_LINK_PTR (link (), _Unwind_ForcedUnwind)
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(exc, stop, stop_argument);
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}
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_Unwind_Word
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_Unwind_GetCFA (struct _Unwind_Context *context)
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{
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return UNWIND_LINK_PTR (link (), _Unwind_GetCFA) (context);
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}
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