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- /* Copyright (C) 2012-2019 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
- <http://www.gnu.org/licenses/>. */
- #include <unistd.h>
- #include <sys/shm.h>
- #include <ldsodefs.h>
- int
- __getshmlba (void)
- {
- uint64_t hwcap = GLRO(dl_hwcap);
- int pgsz = GLRO(dl_pagesize);
- if (hwcap & HWCAP_SPARC_V9)
- {
- if (pgsz < (16 * 1024))
- return 16 * 1024;
- else
- return pgsz;
- }
- else if (!(hwcap & HWCAP_SPARC_FLUSH))
- return 64 * 1024;
- else
- return 256 * 1024;
- }
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