github.com/madokast/nopreempt@v1.0.3-0.20240125081507-3fa05aef38ed/g_go1.5.s (about) 1 // Copyright 2021 Peter Mattis. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or 12 // implied. See the License for the specific language governing 13 // permissions and limitations under the License. See the AUTHORS file 14 // for names of contributors. 15 16 // Assembly to mimic runtime.getg. 17 18 //go:build (386 || amd64 || amd64p32 || arm || arm64) && gc && go1.5 19 // +build 386 amd64 amd64p32 arm arm64 20 // +build gc 21 // +build go1.5 22 23 #include "textflag.h" 24 25 // func getg() *g 26 TEXT ·getg(SB),NOSPLIT,$0-8 27 #ifdef GOARCH_386 28 MOVL (TLS), AX 29 MOVL AX, ret+0(FP) 30 #endif 31 #ifdef GOARCH_amd64 32 MOVQ (TLS), AX 33 MOVQ AX, ret+0(FP) 34 #endif 35 #ifdef GOARCH_arm 36 MOVW g, ret+0(FP) 37 #endif 38 #ifdef GOARCH_arm64 39 MOVD g, ret+0(FP) 40 #endif 41 RET