# # Copyright (c) 2022 SAP SE. All rights reserved. # Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved. # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. # # This code is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License version 2 only, as # published by the Free Software Foundation. # # This code 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 # version 2 for more details (a copy is included in the LICENSE file that # accompanied this code). # # You should have received a copy of the GNU General Public License version # 2 along with this work; if not, write to the Free Software Foundation, # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. # # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA # or visit www.oracle.com if you need additional information or have any # questions. # .globl SafeFetch32_impl .globl SafeFetchN_impl .globl _SafeFetch32_fault .globl _SafeFetchN_fault .globl _SafeFetch32_continuation .globl _SafeFetchN_continuation .text # Support for int SafeFetch32(int* address, int defaultval); # # %rdi : address # %esi : defaultval .type SafeFetch32_impl,@function SafeFetch32_impl: _SafeFetch32_fault: movl (%rdi), %eax # load target value, may fault ret _SafeFetch32_continuation: movl %esi, %eax # return default ret # Support for intptr_t SafeFetchN(intptr_t* address, intptr_t defaultval); # # %rdi : address # %rsi : defaultval .type SafeFetchN_impl,@function SafeFetchN_impl: _SafeFetchN_fault: movq (%rdi), %rax # load target value, may fault ret _SafeFetchN_continuation: movq %rsi, %rax # return default ret