From 3e2f285c5f12045e425060b6cbdf7a7cab540594 Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Fri, 19 Mar 2021 12:53:40 -0700 Subject: nptl: Remove MULTI_PAGE_ALIASING [BZ #23554] MULTI_PAGE_ALIASING was introduced to mitigate an aliasing issue on Pentium 4. It is no longer needed for processors after Pentium 4. --- sysdeps/i386/i686/stack-aliasing.h | 23 ----------------------- 1 file changed, 23 deletions(-) delete mode 100644 sysdeps/i386/i686/stack-aliasing.h (limited to 'sysdeps/i386/i686') diff --git a/sysdeps/i386/i686/stack-aliasing.h b/sysdeps/i386/i686/stack-aliasing.h deleted file mode 100644 index d521dcdb75..0000000000 --- a/sysdeps/i386/i686/stack-aliasing.h +++ /dev/null @@ -1,23 +0,0 @@ -/* Define macros for stack address aliasing issues for NPTL. i686 version. - Copyright (C) 2014-2021 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 - . */ - -/* What is useful is to avoid the 64k aliasing problem which reliably - happens if all stacks use sizes which are a multiple of 64k. Tell - the stack allocator to disturb this by allocation one more page if - necessary. */ -#define MULTI_PAGE_ALIASING 65536 -- cgit v1.2.1