89fb683558
__clock_gettime and other __clock_* functions could result in an extra PLT reference within libc.so if it actually gets used. None of the code currently uses them, which is why this probably went unnoticed.
41 lines
1.3 KiB
C
41 lines
1.3 KiB
C
/* Get a clockid_t for the process CPU clock of a given process. Generic.
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Copyright (C) 2000-2013 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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
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License as published by the Free Software Foundation; either
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version 2.1 of the 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; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <time.h>
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#include <unistd.h>
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int
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__clock_getcpuclockid (pid_t pid, clockid_t *clock_id)
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{
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/* We don't allow any process ID but our own. */
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if (pid != 0 && pid != getpid ())
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return EPERM;
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#ifdef CLOCK_PROCESS_CPUTIME_ID
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/* Store the number. */
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*clock_id = CLOCK_PROCESS_CPUTIME_ID;
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return 0;
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#else
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/* We don't have a timer for that. */
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return ENOENT;
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#endif
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}
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weak_alias (__clock_getcpuclockid, clock_getcpuclockid)
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