From f215e02bf85f68d3a6106c2a1f4f7f063f819064 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:17:27 +0200 Subject: Adding upstream version 7.0.14-dfsg. Signed-off-by: Daniel Baumann --- src/VBox/Runtime/common/compiler/vcc/guard-vcc.asm | 108 +++++++++++++++++++++ 1 file changed, 108 insertions(+) create mode 100644 src/VBox/Runtime/common/compiler/vcc/guard-vcc.asm (limited to 'src/VBox/Runtime/common/compiler/vcc/guard-vcc.asm') diff --git a/src/VBox/Runtime/common/compiler/vcc/guard-vcc.asm b/src/VBox/Runtime/common/compiler/vcc/guard-vcc.asm new file mode 100644 index 00000000..42e6d5a8 --- /dev/null +++ b/src/VBox/Runtime/common/compiler/vcc/guard-vcc.asm @@ -0,0 +1,108 @@ +; $Id: guard-vcc.asm $ +;; @file +; IPRT - Control Flow Guard related Visual C++ support routines. +; + +; +; Copyright (C) 2022-2023 Oracle and/or its affiliates. +; +; This file is part of VirtualBox base platform packages, as +; available from https://www.virtualbox.org. +; +; This program is free software; you can redistribute it and/or +; modify it under the terms of the GNU General Public License +; as published by the Free Software Foundation, in version 3 of the +; License. +; +; This program 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 +; General Public License for more details. +; +; You should have received a copy of the GNU General Public License +; along with this program; if not, see . +; +; The contents of this file may alternatively be used under the terms +; of the Common Development and Distribution License Version 1.0 +; (CDDL), a copy of it is provided in the "COPYING.CDDL" file included +; in the VirtualBox distribution, in which case the provisions of the +; CDDL are applicable instead of those of the GPL. +; +; You may elect to license modified versions of this file under the +; terms and conditions of either the GPL or the CDDL or both. +; +; SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 +; + + + +;********************************************************************************************************************************* +;* Header Files * +;********************************************************************************************************************************* +%include "iprt/asmdefs.mac" +%include "iprt/x86.mac" + + + +;********************************************************************************************************************************* +;* Global Variables * +;********************************************************************************************************************************* + +; +; Points to a NOP icall checker by default. +; The loader will replace this when we start advertising it in the load config. +; +section .0000cfg rdata align=8 + +GLOBALNAME __guard_check_icall_fptr + RTCCPTR_DEF NAME(__guard_check_icall_nop) + +%ifdef RT_ARCH_AMD64 +GLOBALNAME __guard_dispatch_icall_fptr + RTCCPTR_DEF __guard_dispatch_icall_nop + +; xfg stuff (haven't seen it generated or used yet). +GLOBALNAME __guard_xfg_check_icall_fptr + RTCCPTR_DEF __guard_check_icall_nop + +GLOBALNAME __guard_xfg_dispatch_icall_fptr + RTCCPTR_DEF __guard_xfg_dispatch_icall_nop + +GLOBALNAME __guard_xfg_table_dispatch_icall_fptr + RTCCPTR_DEF __guard_xfg_dispatch_icall_nop + +%endif + + +BEGINCODE +;; +; Check that doesn't do anything. +; +; This is for older windows versions which doesn't support call flow guard stuff. +; +BEGINPROC __guard_check_icall_nop + ret +ENDPROC __guard_check_icall_nop + +%ifdef RT_ARCH_AMD64 +;; +; Target function in RAX +; +; This is for older windows versions which doesn't support call flow guard stuff. +; +BEGINPROC __guard_dispatch_icall_nop + jmp rax +ENDPROC __guard_dispatch_icall_nop +%endif + +%ifdef RT_ARCH_AMD64 +;; +; Target function in RAX +; +; This is for windows versions which doesn't support extended call flow guard stuff. +; +BEGINPROC __guard_xfg_dispatch_icall_nop + jmp [__guard_dispatch_icall_nop wrt RIP] +ENDPROC __guard_xfg_dispatch_icall_nop +%endif + -- cgit v1.2.3