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nptl: Add C11 threads tss_* functions
This patch adds the tss_* definitions from C11 threads (ISO/IEC 9899:2011),
more specifically tss_create, tss_delete, tss_get, tss_set, and required
types.
Mostly of the definitions are composed based on POSIX conterparts, including
tss_t (pthread_key_t).
Checked with a build for all major ABI (aarch64-linux-gnu, alpha-linux-gnu,
arm-linux-gnueabi, i386-linux-gnu, ia64-linux-gnu, m68k-linux-gnu,
microblaze-linux-gnu [1], mips{64}-linux-gnu, nios2-linux-gnu,
powerpc{64le}-linux-gnu, s390{x}-linux-gnu, sparc{64}-linux-gnu,
and x86_64-linux-gnu).
Also ran a full check on aarch64-linux-gnu, x86_64-linux-gnu, i686-linux-gnu,
arm-linux-gnueabhf, and powerpc64le-linux-gnu.
[BZ #14092]
* conform/data/threads.h-data (thread_local): New macro.
(TSS_DTOR_ITERATIONS): Likewise.
(tss_t): New type.
(tss_dtor_t): Likewise.
(tss_create): New function.
(tss_get): Likewise.
(tss_set): Likewise.
(tss_delete): Likewise.
* nptl/Makefile (libpthread-routines): Add tss_create, tss_delete,
tss_get, and tss_set objects.
* nptl/Versions (libpthread) [GLIBC_2.28]: Likewise.
* nptl/tss_create.c: New file.
* nptl/tss_delete.c: Likewise.
* nptl/tss_get.c: Likewise.
* nptl/tss_set.c: Likewise.
* sysdeps/nptl/threads.h (thread_local): New define.
(TSS_DTOR_ITERATIONS): Likewise.
(tss_t): New typedef.
(tss_dtor_t): Likewise.
(tss_create): New prototype.
(tss_get): Likewise.
(tss_set): Likewise.
(tss_delete): Likewise.
This commit is contained in:
Adhemerval Zanella
parent
918311a3a3
commit
78d401327f
25
ChangeLog
25
ChangeLog
@ -1,5 +1,30 @@
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2018-07-24 Adhemerval Zanella <adhemerval.zanella@linaro.org>
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[BZ #14092]
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* conform/data/threads.h-data (thread_local): New macro.
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(TSS_DTOR_ITERATIONS): Likewise.
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(tss_t): New type.
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(tss_dtor_t): Likewise.
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(tss_create): New function.
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(tss_get): Likewise.
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(tss_set): Likewise.
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(tss_delete): Likewise.
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* nptl/Makefile (libpthread-routines): Add tss_create, tss_delete,
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tss_get, and tss_set objects.
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* nptl/Versions (libpthread) [GLIBC_2.28]: Likewise.
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* nptl/tss_create.c: New file.
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* nptl/tss_delete.c: Likewise.
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* nptl/tss_get.c: Likewise.
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* nptl/tss_set.c: Likewise.
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* sysdeps/nptl/threads.h (thread_local): New define.
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(TSS_DTOR_ITERATIONS): Likewise.
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(tss_t): New typedef.
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(tss_dtor_t): Likewise.
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(tss_create): New prototype.
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(tss_get): Likewise.
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(tss_set): Likewise.
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(tss_delete): Likewise.
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[BZ #14092]
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* conform/data/threads.h-data (cnd_t): New type.
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(cnd_init): New function.
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@ -1,6 +1,8 @@
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#if defined ISO11
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macro ONCE_FLAG_INIT
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macro thread_local
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macro-int-constant TSS_DTOR_ITERATIONS
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constant thrd_success
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constant thrd_busy
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@ -17,6 +19,8 @@ type thrd_start_t
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type mtx_t
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type once_flag
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type cnd_t
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type tss_t
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type tss_dtor_t
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function int thrd_create (thrd_t*, thrd_start_t, void*)
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function int thrd_equal (thrd_t, thrd_t)
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@ -43,6 +47,11 @@ function int cnd_wait (cnd_t*, mtx_t*)
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function int cnd_timedwait (cnd_t*, mtx_t*, const struct timespec*)
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function void cnd_destroy (cnd_t*)
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function int tss_create (tss_t*, tss_dtor_t)
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function {void*} tss_get (tss_t)
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function int tss_set (tss_t, void*)
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function void tss_delete (tss_t)
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#include "time.h-data"
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#endif
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@ -144,7 +144,8 @@ libpthread-routines = nptl-init nptlfreeres vars events version pt-interp \
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thrd_create thrd_detach thrd_exit thrd_join \
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mtx_destroy mtx_init mtx_lock mtx_timedlock \
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mtx_trylock mtx_unlock call_once cnd_broadcast \
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cnd_destroy cnd_init cnd_signal cnd_timedwait cnd_wait
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cnd_destroy cnd_init cnd_signal cnd_timedwait cnd_wait \
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tss_create tss_delete tss_get tss_set
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# pthread_setuid pthread_seteuid pthread_setreuid \
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# pthread_setresuid \
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# pthread_setgid pthread_setegid pthread_setregid \
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@ -274,7 +274,7 @@ libpthread {
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thrd_create; thrd_detach; thrd_exit; thrd_join;
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mtx_init; mtx_lock; mtx_timedlock; mtx_trylock; mtx_unlock; mtx_destroy;
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call_once; cnd_broadcast; cnd_destroy; cnd_init; cnd_signal;
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cnd_timedwait; cnd_wait;
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cnd_timedwait; cnd_wait; tss_create; tss_delete; tss_get; tss_set;
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}
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GLIBC_PRIVATE {
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@ -27,6 +27,14 @@ __BEGIN_DECLS
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#include <bits/pthreadtypes-arch.h>
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#include <bits/types/struct_timespec.h>
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#ifndef __cplusplus
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# define thread_local _Thread_local
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#endif
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#define TSS_DTOR_ITERATIONS 4
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typedef unsigned int tss_t;
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typedef void (*tss_dtor_t) (void*);
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typedef unsigned long int thrd_t;
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typedef int (*thrd_start_t) (void*);
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@ -174,6 +182,26 @@ extern int cnd_timedwait (cnd_t *__restrict __cond,
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resources. */
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extern void cnd_destroy (cnd_t *__COND);
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/* Thread specific storage functions. */
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/* Create new thread-specific storage key and stores it in the object pointed
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by __TSS_ID. If __DESTRUCTOR is not NULL, the function will be called when
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the thread terminates. */
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extern int tss_create (tss_t *__tss_id, tss_dtor_t __destructor);
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/* Return the value held in thread-specific storage for the current thread
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identified by __TSS_ID. */
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extern void *tss_get (tss_t __tss_id);
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/* Sets the value of the thread-specific storage identified by __TSS_ID for
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the current thread to __VAL. */
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extern int tss_set (tss_t __tss_id, void *__val);
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/* Destroys the thread-specific storage identified by __TSS_ID. The
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destructor is not called until thrd_exit is called. */
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extern void tss_delete (tss_t __tss_id);
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__END_DECLS
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#endif /* _THREADS_H */
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31
nptl/tss_create.c
Normal file
31
nptl/tss_create.c
Normal file
@ -0,0 +1,31 @@
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/* C11 threads thread-specific creation implementation.
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Copyright (C) 2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include "thrd_priv.h"
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int
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tss_create (tss_t *tss_id, tss_dtor_t destructor)
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{
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_Static_assert (sizeof (tss_t) == sizeof (pthread_key_t),
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"sizeof (tss_t) != sizeof (pthread_key_t)");
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_Static_assert (TSS_DTOR_ITERATIONS == PTHREAD_DESTRUCTOR_ITERATIONS,
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"TSS_DTOR_ITERATIONS != PTHREAD_DESTRUCTOR_ITERATIONS");
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int err_code = __pthread_key_create (tss_id, destructor);
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return thrd_err_map (err_code);
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}
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25
nptl/tss_delete.c
Normal file
25
nptl/tss_delete.c
Normal file
@ -0,0 +1,25 @@
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/* C11 threads thread-specific delete implementation.
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Copyright (C) 2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include "thrd_priv.h"
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void
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tss_delete (tss_t tss_id)
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{
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__pthread_key_delete (tss_id);
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}
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25
nptl/tss_get.c
Normal file
25
nptl/tss_get.c
Normal file
@ -0,0 +1,25 @@
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/* C11 threads thread-specific get implementation.
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Copyright (C) 2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include "thrd_priv.h"
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void *
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tss_get (tss_t tss_id)
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{
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return __pthread_getspecific (tss_id);
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}
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26
nptl/tss_set.c
Normal file
26
nptl/tss_set.c
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@ -0,0 +1,26 @@
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/* C11 threads thread-specific set implementation.
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Copyright (C) 2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include "thrd_priv.h"
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int
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tss_set (tss_t tss_id, void *val)
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{
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int err_code = __pthread_setspecific (tss_id, val);
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return thrd_err_map (err_code);
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}
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