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Diffstat (limited to '')
| -rw-r--r-- | src/runtime/tls_arm64.s | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/src/runtime/tls_arm64.s b/src/runtime/tls_arm64.s new file mode 100644 index 0000000..52b3e8f --- /dev/null +++ b/src/runtime/tls_arm64.s @@ -0,0 +1,62 @@ +// 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 +#ifndef GOOS_darwin +#ifndef GOOS_openbsd +#ifndef GOOS_windows + MOVB runtime·iscgo(SB), R0 + CBZ R0, nocgo +#endif +#endif +#endif + + MRS_TPIDR_R0 +#ifdef TLS_darwin + // Darwin sometimes returns unaligned pointers + AND $0xfffffffffffffff8, R0 +#endif + MOVD runtime·tls_g(SB), R27 + MOVD (R0)(R27), g + +nocgo: + RET + +TEXT runtime·save_g(SB),NOSPLIT,$0 +#ifndef GOOS_darwin +#ifndef GOOS_openbsd +#ifndef GOOS_windows + MOVB runtime·iscgo(SB), R0 + CBZ R0, nocgo +#endif +#endif +#endif + + MRS_TPIDR_R0 +#ifdef TLS_darwin + // Darwin sometimes returns unaligned pointers + AND $0xfffffffffffffff8, R0 +#endif + MOVD runtime·tls_g(SB), R27 + MOVD g, (R0)(R27) + +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 |