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ff026950e2
Add a C wrapper to pass arguments in /* Control process execution. */ extern int prctl (int __option, ...) __THROW; to prctl syscall: extern int prctl (int, unsigned long int, unsigned long int, unsigned long int, unsigned long int);
43 lines
1.6 KiB
C
43 lines
1.6 KiB
C
/* prctl - Linux specific syscall.
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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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#include <sysdep.h>
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#include <stdarg.h>
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#include <sys/prctl.h>
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/* Unconditionally read all potential arguments. This may pass
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garbage values to the kernel, but avoids the need for teaching
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glibc the argument counts of individual options (including ones
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that are added to the kernel in the future). */
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int
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__prctl (int option, ...)
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{
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va_list arg;
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va_start (arg, option);
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unsigned long int arg2 = va_arg (arg, unsigned long int);
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unsigned long int arg3 = va_arg (arg, unsigned long int);
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unsigned long int arg4 = va_arg (arg, unsigned long int);
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unsigned long int arg5 = va_arg (arg, unsigned long int);
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va_end (arg);
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return INLINE_SYSCALL_CALL (prctl, option, arg2, arg3, arg4, arg5);
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}
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libc_hidden_def (__prctl)
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weak_alias (__prctl, prctl)
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