mirror of git://sourceware.org/git/glibc.git
39 lines
1.4 KiB
C
39 lines
1.4 KiB
C
/* sysconf_sigstksz (). Linux version.
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Copyright (C) 2020 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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<https://www.gnu.org/licenses/>. */
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/* Return sysconf (_SC_SIGSTKSZ). */
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static long int
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sysconf_sigstksz (void)
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{
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long int minsigstacksize = GLRO(dl_minsigstacksize);
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assert (minsigstacksize != 0);
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_Static_assert (__builtin_constant_p (MINSIGSTKSZ),
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"MINSIGSTKSZ is constant");
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if (minsigstacksize < MINSIGSTKSZ)
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minsigstacksize = MINSIGSTKSZ;
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/* MAX (MINSIGSTKSZ, sysconf (_SC_MINSIGSTKSZ)) * 4. */
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long int sigstacksize = minsigstacksize * 4;
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/* Return MAX (SIGSTKSZ, sigstacksize). */
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_Static_assert (__builtin_constant_p (SIGSTKSZ),
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"SIGSTKSZ is constant");
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if (sigstacksize < SIGSTKSZ)
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sigstacksize = SIGSTKSZ;
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return sigstacksize;
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}
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