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support/xclone.c
42 строки
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Paul Eggert
Update copyright dates with scripts/update-copyrights
02 янв 2026, 00:42
02 янв 2026, 00:42
66f3e92
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/* Auxiliary functions to issue the clone syscall. Copyright (C) 2021-2026 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 <https://www.gnu.org/licenses/>. */ #ifdef __linux__ # include <support/check.h> # include <stackinfo.h> /* For _STACK_GROWS_{UP,DOWN}. */ # include <xsched.h> pid_t xclone (int (*fn) (void *arg), void *arg, void *stack, size_t stack_size, int flags) { pid_t r = -1; # if _STACK_GROWS_DOWN r = clone (fn, stack + stack_size, flags, arg, /* ptid */ NULL, /* tls */ NULL, /* ctid */ NULL); # elif _STACK_GROWS_UP r = clone (fn, stack, flags, arg, /* ptid */ NULL, /* tls */ NULL, NULL); # endif if (r < 0) FAIL_EXIT1 ("clone: %m"); return r; } #endif