diff options
| -rw-r--r-- | sysdeps/nptl/thread_pointer.h | 28 | ||||
| -rw-r--r-- | sysdeps/powerpc/nptl/thread_pointer.h | 33 | ||||
| -rw-r--r-- | sysdeps/x86/nptl/thread_pointer.h | 38 |
3 files changed, 99 insertions, 0 deletions
diff --git a/sysdeps/nptl/thread_pointer.h b/sysdeps/nptl/thread_pointer.h new file mode 100644 index 0000000000..92f2f3093e --- /dev/null +++ b/sysdeps/nptl/thread_pointer.h @@ -0,0 +1,28 @@ +/* __thread_pointer definition. Generic version. + Copyright (C) 2021 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 + <https://www.gnu.org/licenses/>. */ + +#ifndef _SYS_THREAD_POINTER_H +#define _SYS_THREAD_POINTER_H + +static inline void * +__thread_pointer (void) +{ + return __builtin_thread_pointer (); +} + +#endif /* _SYS_THREAD_POINTER_H */ diff --git a/sysdeps/powerpc/nptl/thread_pointer.h b/sysdeps/powerpc/nptl/thread_pointer.h new file mode 100644 index 0000000000..8fd5ba671f --- /dev/null +++ b/sysdeps/powerpc/nptl/thread_pointer.h @@ -0,0 +1,33 @@ +/* __thread_pointer definition. powerpc version. + Copyright (C) 2021 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 + <https://www.gnu.org/licenses/>. */ + +#ifndef _SYS_THREAD_POINTER_H +#define _SYS_THREAD_POINTER_H + +static inline void * +__thread_pointer (void) +{ +#ifdef __powerpc64__ + register void *__result asm ("r13"); +#else + register void *__result asm ("r2"); +#endif + return __result; +} + +#endif /* _SYS_THREAD_POINTER_H */ diff --git a/sysdeps/x86/nptl/thread_pointer.h b/sysdeps/x86/nptl/thread_pointer.h new file mode 100644 index 0000000000..6b71b6f7e1 --- /dev/null +++ b/sysdeps/x86/nptl/thread_pointer.h @@ -0,0 +1,38 @@ +/* __thread_pointer definition. x86 version. + Copyright (C) 2021 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 + <https://www.gnu.org/licenses/>. */ + +#ifndef _SYS_THREAD_POINTER_H +#define _SYS_THREAD_POINTER_H + +static inline void * +__thread_pointer (void) +{ +#if __GNUC_PREREQ (11, 1) + return __builtin_thread_pointer (); +#else + void *__result; +# ifdef __x86_64__ + __asm__ ("mov %%fs:0, %0" : "=r" (__result)); +# else + __asm__ ("mov %%gs:0, %0" : "=r" (__result)); +# endif + return __result; +#endif /* !GCC 11 */ +} + +#endif /* _SYS_THREAD_POINTER_H */ |