| // Copyright 2015 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| #include "go_asm.h" |
| #include "go_tls.h" |
| #include "funcdata.h" |
| #include "textflag.h" |
| #include "tls_arm64.h" |
| |
| TEXT runtime·load_g(SB),NOSPLIT,$0 |
| MOVB runtime·iscgo(SB), R0 |
| CBZ R0, nocgo |
| |
| MRS_TPIDR_R0 |
| #ifdef TLS_darwin |
| // Darwin sometimes returns unaligned pointers |
| AND $0xfffffffffffffff8, R0 |
| #endif |
| MOVD runtime·tls_g(SB), R27 |
| ADD R27, R0 |
| MOVD 0(R0), g |
| |
| nocgo: |
| RET |
| |
| TEXT runtime·save_g(SB),NOSPLIT,$0 |
| MOVB runtime·iscgo(SB), R0 |
| CBZ R0, nocgo |
| |
| MRS_TPIDR_R0 |
| #ifdef TLS_darwin |
| // Darwin sometimes returns unaligned pointers |
| AND $0xfffffffffffffff8, R0 |
| #endif |
| MOVD runtime·tls_g(SB), R27 |
| ADD R27, R0 |
| MOVD g, 0(R0) |
| |
| nocgo: |
| RET |
| |
| #ifdef TLSG_IS_VARIABLE |
| #ifdef GOOS_android |
| // Use the free TLS_SLOT_APP slot #2 on Android Q. |
| // Earlier androids are set up in gcc_android.c. |
| DATA runtime·tls_g+0(SB)/8, $16 |
| #endif |
| GLOBL runtime·tls_g+0(SB), NOPTR, $8 |
| #else |
| GLOBL runtime·tls_g+0(SB), TLSBSS, $8 |
| #endif |
