1*760c253cSXin Li// Copyright 2019 The ChromiumOS Authors 2*760c253cSXin Li// Use of this source code is governed by a BSD-style license that can be 3*760c253cSXin Li// found in the LICENSE file. 4*760c253cSXin Li 5*760c253cSXin Lipackage main 6*760c253cSXin Li 7*760c253cSXin Liimport ( 8*760c253cSXin Li "strings" 9*760c253cSXin Li) 10*760c253cSXin Li 11*760c253cSXin Lifunc processX86Flags(builder *commandBuilder) { 12*760c253cSXin Li arch := builder.target.arch 13*760c253cSXin Li if strings.HasPrefix(arch, "x86_64") || startswithI86(arch) { 14*760c253cSXin Li builder.addPostUserArgs("-mno-movbe") 15*760c253cSXin Li } 16*760c253cSXin Li} 17*760c253cSXin Li 18*760c253cSXin Li// Returns true if s starts with i.86. 19*760c253cSXin Lifunc startswithI86(s string) bool { 20*760c253cSXin Li return len(s) >= 4 && s[0] == 'i' && s[2:4] == "86" 21*760c253cSXin Li} 22