diff --git a/sysdeps/riscv/nptl/thread_pointer.h b/sysdeps/riscv/nptl/thread_pointer.h new file mode 100644 index 0000000000..9e7a84a78b --- /dev/null +++ b/sysdeps/riscv/nptl/thread_pointer.h @@ -0,0 +1,40 @@ +/* __thread_pointer definition. riscv version. + Copyright (C) 2021-2024 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + . */ + +#ifndef _SYS_THREAD_POINTER_H +#define _SYS_THREAD_POINTER_H + +#include + +#if __GNUC_PREREQ (10, 3) || __glibc_clang_prereq (11, 0) +static inline void * +__thread_pointer (void) +{ + return __builtin_thread_pointer (); +} +#else +static inline void * +__thread_pointer (void) +{ + void *__thread_register; + __asm__ ("mv %0, tp" : "=r" (__thread_register)); + return __thread_register; +} +#endif + +#endif /* _SYS_THREAD_POINTER_H */