| // Copyright 2022 The Fuchsia 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 <lib/ld/abi.h> |
| #include <lib/ld/tls.h> |
| |
| #include "static-tls-get-addr.h" |
| |
| namespace ld { |
| namespace { |
| |
| #if defined(__x86_64__) |
| |
| inline void* ThreadPointer() { |
| #ifdef __clang__ |
| return *static_cast<void* [[clang::address_space(257)]]*>(nullptr); |
| #else |
| void* tp; |
| __asm__("mov %%fs:0,%0" : "=r"(tp)); |
| return tp; |
| #endif |
| } |
| |
| #else |
| |
| inline void* ThreadPointer() { return __builtin_thread_pointer(); } |
| |
| #endif |
| |
| } // namespace |
| |
| void* __tls_get_addr(TlsGetAddrGot& got) { |
| return StaticTlsGetAddr(got, _ld_abi.static_tls_offsets, ThreadPointer()); |
| } |
| |
| } // namespace ld |
