mirror of
https://sourceware.org/git/glibc.git
synced 2025-10-27 12:15:39 +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>
34 lines
1.2 KiB
C
34 lines
1.2 KiB
C
/* Copyright (C) 1999-2025 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/>. */
|
|
|
|
/* This file contains a bit of information about the stack allocation
|
|
of the processor. */
|
|
|
|
#ifndef _STACKINFO_H
|
|
#define _STACKINFO_H 1
|
|
|
|
#include <elf.h>
|
|
|
|
/* Default to an executable stack. PROT_EXEC can be overridden if PT_GNU_STACK
|
|
* is present, but it is presumed absent. */
|
|
#define DEFAULT_STACK_PROT_PERMS (PROT_READ|PROT_WRITE|PROT_EXEC)
|
|
|
|
/* On PA the stack grows up. */
|
|
#define _STACK_GROWS_UP 1
|
|
|
|
#endif /* stackinfo.h */
|