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3666a04883
This commits the result of running gdb/copyright.py as per our Start
of New Year procedure...
gdb/ChangeLog
Update copyright year range in copyright header of all GDB files.
57 lines
1.8 KiB
C++
57 lines
1.8 KiB
C++
/* Safe version of strerror for GDB, the GNU debugger.
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Copyright (C) 2006-2021 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "common-defs.h"
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#include <string.h>
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/* There are two different versions of strerror_r; one is GNU-specific, the
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other XSI-compliant. They differ in the return type. This overload lets
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us choose the right behavior for each return type. We cannot rely on Gnulib
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to solve this for us because IPA does not use Gnulib but uses this
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function. */
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/* Called if we have a XSI-compliant strerror_r. */
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ATTRIBUTE_UNUSED static char *
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select_strerror_r (int res, char *buf)
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{
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return res == 0 ? buf : nullptr;
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}
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/* Called if we have a GNU strerror_r. */
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ATTRIBUTE_UNUSED static char *
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select_strerror_r (char *res, char *)
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{
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return res;
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}
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/* Implementation of safe_strerror as defined in common-utils.h. */
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const char *
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safe_strerror (int errnum)
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{
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static thread_local char buf[1024];
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char *res = select_strerror_r (strerror_r (errnum, buf, sizeof (buf)), buf);
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if (res != nullptr)
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return res;
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xsnprintf (buf, sizeof buf, "(undocumented errno %d)", errnum);
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return buf;
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}
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