mirror of
https://github.com/openharmony/third_party_elfutils.git
synced 2026-07-19 19:43:34 -04:00
Ulf Hermann
1127470a3e
If so, define attribute_hidden to be empty. Also, use attribute_hidden in all places where we hide symbols. If this attribute is missing, it simply means that we cannot hide private symbols in the binary using attributes. This disables some optimizations and may increase the risk of symbol name clashes with other libraries, but is not fatal. However, we still employ linker version scripts to explicitly define the exported symbols. This serves much of the same purpose. Also, as all our symbols are prefixed with the library name, and "__" for private ones, the chance of clashes is low anyway. Signed-off-by: Ulf Hermann <ulf.hermann@qt.io>
79 lines
2.0 KiB
C
79 lines
2.0 KiB
C
/* Memory handling for libdw.
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Copyright (C) 2003, 2004, 2006 Red Hat, Inc.
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This file is part of elfutils.
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Written by Ulrich Drepper <drepper@redhat.com>, 2003.
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This file is free software; you can redistribute it and/or modify
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it under the terms of either
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* the GNU Lesser General Public License as published by the Free
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Software Foundation; either version 3 of the License, or (at
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your option) any later version
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or
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* the GNU General Public License as published by the Free
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Software Foundation; either version 2 of the License, or (at
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your option) any later version
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or both in parallel, as here.
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elfutils is distributed in the hope that it will be useful, but
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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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General Public License for more details.
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You should have received copies of the GNU General Public License and
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the GNU Lesser General Public License along with this program. If
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not, see <http://www.gnu.org/licenses/>. */
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <error.h>
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#include <errno.h>
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#include <stdlib.h>
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#include "libdwP.h"
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#include "system.h"
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void *
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__libdw_allocate (Dwarf *dbg, size_t minsize, size_t align)
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{
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size_t size = MAX (dbg->mem_default_size,
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(align - 1 +
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2 * minsize + offsetof (struct libdw_memblock, mem)));
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struct libdw_memblock *newp = malloc (size);
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if (newp == NULL)
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dbg->oom_handler ();
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uintptr_t result = ((uintptr_t) newp->mem + align - 1) & ~(align - 1);
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newp->size = size - offsetof (struct libdw_memblock, mem);
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newp->remaining = (uintptr_t) newp + size - (result + minsize);
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newp->prev = dbg->mem_tail;
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dbg->mem_tail = newp;
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return (void *) result;
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}
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Dwarf_OOM
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dwarf_new_oom_handler (Dwarf *dbg, Dwarf_OOM handler)
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{
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Dwarf_OOM old = dbg->oom_handler;
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dbg->oom_handler = handler;
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return old;
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}
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void
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__attribute ((noreturn)) attribute_hidden
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__libdw_oom (void)
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{
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while (1)
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error (EXIT_FAILURE, ENOMEM, "libdw");
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}
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