mirror of
https://sourceware.org/git/glibc.git
synced 2025-10-15 17:46:41 +03:00
3b2b88ccee
This patch replaces _dl_stack_flags global variable by _dl_stack_prot_flags. The advantage is that any convertion from p_flags to final used mprotect flags occurs at loading of p_flags. It avoids repeated spurious convertions of _dl_stack_flags, for example in allocate_thread_stack. This modification was suggested in: https://sourceware.org/pipermail/libc-alpha/2025-March/165537.html Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
32 lines
1.1 KiB
C
32 lines
1.1 KiB
C
/* Machine-specific function to return the stack pointer. Linux version.
|
|
Copyright (C) 2021-2025 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/>. */
|
|
|
|
#ifndef _MACHINE_SP_H
|
|
#define _MACHINE_SP_H
|
|
|
|
#include <stackinfo.h>
|
|
|
|
/* Return the current stack pointer. */
|
|
static inline uintptr_t
|
|
__thread_stack_pointer (void)
|
|
{
|
|
return (uintptr_t) CURRENT_STACK_FRAME;
|
|
}
|
|
|
|
#endif /* machine-sp.h */
|