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author | Florian Weimer <fweimer@redhat.com> | 2021-12-09 09:49:32 +0100 |
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committer | Florian Weimer <fweimer@redhat.com> | 2021-12-09 09:49:32 +0100 |
commit | 8dbeb0561eeb876f557ac9eef5721912ec074ea5 (patch) | |
tree | c795e63ee2ed0197a52379492a678149f2b93cb7 /sysdeps/powerpc | |
parent | 409a73581687914ac0555f6a468469578f97e70f (diff) | |
download | glibc-8dbeb0561eeb876f557ac9eef5721912ec074ea5.zip glibc-8dbeb0561eeb876f557ac9eef5721912ec074ea5.tar.gz glibc-8dbeb0561eeb876f557ac9eef5721912ec074ea5.tar.bz2 |
nptl: Add <thread_pointer.h> for defining __thread_pointer
<tls.h> already contains a definition that is quite similar,
but it is not consistent across architectures.
Only architectures for which rseq support is added are covered.
Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
Diffstat (limited to 'sysdeps/powerpc')
-rw-r--r-- | sysdeps/powerpc/nptl/thread_pointer.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/sysdeps/powerpc/nptl/thread_pointer.h b/sysdeps/powerpc/nptl/thread_pointer.h new file mode 100644 index 0000000..8fd5ba6 --- /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 */ |