From c79a31fb36fe265f7566bea622849b06c94b4022 Mon Sep 17 00:00:00 2001 From: Florian Weimer Date: Tue, 11 May 2021 11:08:00 +0200 Subject: nptl: Move stack cache management, __libpthread_freeres into libc This replaces the FREE_P macro with the __nptl_stack_in_use inline function. stack_list_del is renamed to __nptl_stack_list_del, stack_list_add to __nptl_stack_list_add, __deallocate_stack to __nptl_deallocate_stack, free_stacks to __nptl_free_stacks. It is convenient to move __libpthread_freeres into libc at the same time. This removes the temporary __default_pthread_attr_freeres export and restores full freeres coverage for __default_pthread_attr. Reviewed-by: Adhemerval Zanella --- nptl/nptl-stack.h | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 nptl/nptl-stack.h (limited to 'nptl/nptl-stack.h') diff --git a/nptl/nptl-stack.h b/nptl/nptl-stack.h new file mode 100644 index 0000000000..8631b61816 --- /dev/null +++ b/nptl/nptl-stack.h @@ -0,0 +1,50 @@ +/* Stack cache management for NPTL. + Copyright (C) 2002-2021 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper , 2002. + + 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 + . */ + +#ifndef _NPTL_STACK_H +#define _NPTL_STACK_H + +#include +#include +#include + +/* Check whether the stack is still used or not. */ +static inline bool +__nptl_stack_in_use (struct pthread *pd) +{ + return pd->tid <= 0; +} + +/* Remove the stack ELEM from its list. */ +void __nptl_stack_list_del (list_t *elem); +libc_hidden_proto (__nptl_stack_list_del) + +/* Add ELEM to a stack list. LIST can be either &GL (dl_stack_used) + or &GL (dl_stack_cache). */ +void __nptl_stack_list_add (list_t *elem, list_t *list); +libc_hidden_proto (__nptl_stack_list_add) + +/* Free allocated stack. */ +extern void __nptl_deallocate_stack (struct pthread *pd); +libc_hidden_proto (__nptl_deallocate_stack) + +/* Free stacks until cache size is lower than LIMIT. */ +void __nptl_free_stacks (size_t limit) attribute_hidden; + +#endif /* _NPTL_STACK_H */ -- cgit 1.4.1