Commit Graph

2712 Commits

Author SHA1 Message Date
Florian Weimer
8c1c0da3a8 nptl: Move __default_pthread_attr, __default_pthread_attr_lock into libc
The GLIBC_PRIVATE exports for these symbols are expected to be
temporary.

Tested-by: Carlos O'Donell <carlos@redhat.com>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2021-05-10 10:31:42 +02:00
Florian Weimer
652c7c6fe7 nptl: Simplify resetting the in-flight stack in __reclaim_stacks
stack_list_del overwrites the in-flight stack variable.

Tested-by: Carlos O'Donell <carlos@redhat.com>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2021-05-10 10:31:41 +02:00
Florian Weimer
2dd87703d4 nptl: Move changing of stack permissions into ld.so
All the stack lists are now in _rtld_global, so it is possible
to change stack permissions directly from there, instead of
calling into libpthread to do the change.

Tested-by: Carlos O'Donell <carlos@redhat.com>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2021-05-10 10:31:41 +02:00
Florian Weimer
ee07b3a722 nptl: Simplify the change_stack_perm calling convention
Only ia64 needs the page mask, and it is straightforward
to compute the value within the function itself.

Tested-by: Carlos O'Donell <carlos@redhat.com>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2021-05-10 10:31:41 +02:00
Florian Weimer
9d124d81f0 nptl: Move more stack management variables into _rtld_global
Permissions of the cached stacks may have to be updated if an object
is loaded that requires executable stacks, so the dynamic loader
needs to know about these cached stacks.

The move of in_flight_stack and stack_cache_actsize is a requirement for
merging __reclaim_stacks into the fork implementation in libc.

Tested-by: Carlos O'Donell <carlos@redhat.com>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2021-05-10 10:31:41 +02:00
Florian Weimer
0df5d8d404 nptl: Eliminate __pthread_multiple_threads
It is no longer needed after the SINGLE_THREADED_P consolidation.

Tested-by: Carlos O'Donell <carlos@redhat.com>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2021-05-10 10:31:41 +02:00
Florian Weimer
321789f61a nptl: Export __libc_multiple_threads from libc as an internal symbol
This allows the elimination of the __libc_multiple_threads_ptr
variable in libpthread and its initialization procedure.

Tested-by: Carlos O'Donell <carlos@redhat.com>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2021-05-10 10:31:41 +02:00
Florian Weimer
d6163dfd38 elf, nptl: Resolve recursive lock implementation early
If libpthread is included in libc, it is not necessary to delay
initialization of the lock/unlock function pointers until libpthread
is loaded.  This eliminates two unprotected function pointers
from _rtld_global and removes some initialization code from
libpthread.

Tested-by: Carlos O'Donell <carlos@redhat.com>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2021-05-10 10:31:41 +02:00
Florian Weimer
3f0808ef4c nptl: Move pthread_barrierattr_setpshared into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-05-06 15:56:37 +02:00
Florian Weimer
39e74af22e nptl: Move pthread_barrierattr_getpshared into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-05-06 15:56:37 +02:00
Florian Weimer
e731212bc3 nptl: Move pthread_barrierattr_init into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-05-06 15:56:37 +02:00
Florian Weimer
bbacf0f56c nptl: Move pthread_barrierattr_destroy into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-05-06 15:56:37 +02:00
Florian Weimer
b9aec0dd9f nptl: Move pthread_barrier_wait into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-05-06 15:56:37 +02:00
Florian Weimer
f1af331c4e nptl: Move pthread_barrier_init into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-05-06 15:56:37 +02:00
Florian Weimer
43b3746aff nptl: Move pthread_barrier_destroy into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-05-06 15:56:37 +02:00
Florian Weimer
5633541d3b nptl: Move sem_trywait, sem_wait into libc
The symbols were moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-05-05 17:19:53 +02:00
Florian Weimer
990c8ffd3a nptl: Move sem_unlink into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

A small adjust to the sem_unlink implementation is necessary to avoid
a check-localplt failure.

A placeholder symbol to keep the GLIBC_2.1.1 version alive in
libpthread is added with this commit.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-05-05 17:19:50 +02:00
Florian Weimer
018c75dcb1 nptl: Move sem_timedwait into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-05-05 17:19:48 +02:00
Florian Weimer
793042c63c nptl: Move sem_post into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-05-05 17:19:47 +02:00
Florian Weimer
1ae60ae74f nptl: Move sem_init into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-05-05 17:19:45 +02:00
Florian Weimer
61878689c2 nptl: Move sem_getvalue into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-05-05 17:19:43 +02:00
Florian Weimer
4b729cca87 nptl: Move sem_destroy into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-05-05 17:19:40 +02:00
Florian Weimer
0b7d48d106 nptl: Move sem_close, sem_open into libc
The symbols were moved using move-symbol-to-libc.py.

Both functions are moved at the same time because they depend
on internal functions in sysdeps/pthread/sem_routines.c, which
are moved in this commit as well.  Additional hidden prototypes
are required to avoid check-localplt failures.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-05-05 17:19:38 +02:00
Florian Weimer
19cc20ef2e nptl: Move sem_clockwait into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

A new placeholder version is added at version GLIBC_2.30, to
preserve that version in libpthread.so.0.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-05-05 17:19:35 +02:00
Florian Weimer
ce0b7961ae nptl: Consolidate async cancel enable/disable implementation in libc
Previously, the source file nptl/cancellation.c was compiled multiple
times, for libc, libpthread, librt.  This commit switches to a single
implementation, with new __pthread_enable_asynccancel@@GLIBC_PRIVATE,
__pthread_disable_asynccancel@@GLIBC_PRIVATE exports.

The almost-unused CANCEL_ASYNC and CANCEL_RESET macros are replaced
by LIBC_CANCEL_ASYNC and LIBC_CANCEL_ASYNC macros.  They call the
__pthread_* functions unconditionally now.  The macros are still
needed because shared code uses them; Hurd has different definitions.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-05-05 17:19:32 +02:00
Florian Weimer
0197c1bc60 nptl: Move pthread_testcancel into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

A temporary __pthread_testcancel@@GLIBC_PRIVATE export is created
because it is needed by the semaphore implementation.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-05-05 17:19:20 +02:00
Florian Weimer
7cbf1c8416 elf, nptl: Initialize static TLS directly in ld.so
The stack list is available in ld.so since commit
1daccf403b ("nptl: Move stack list
variables into _rtld_global"), so it's possible to walk the stack
list directly in ld.so and perform the initialization there.

This eliminates an unprotected function pointer from _rtld_global
and reduces the libpthread initialization code.
2021-05-05 06:20:31 +02:00
Florian Weimer
dde76856ba nptl: Re-sort Versions file
Due to an incorrect conflict resolution, libc/GLIBC_2.2 section was no
longer sorted lexicographically.
2021-05-03 14:12:55 +02:00
Florian Weimer
c2fd60a586 nptl: Move pthread_yield into libc, as a compatibility symbol
And deprecate it in <pthread.h>, redirecting it to sched_yield
for the time being.

The symbol was moved using scripts/move-symbol-to-libc.py.

No GLIBC_2.34 symbol version is added because of the compatibility
symbol status.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03 09:23:44 +02:00
Florian Weimer
0505ae4e3b nptl: Move pthread_rwlockattr_setpshared into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03 09:18:45 +02:00
Florian Weimer
b444409479 nptl: Move pthread_rwlockattr_setkind_np into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03 09:18:42 +02:00
Florian Weimer
dbfa12e201 nptl: Move pthread_rwlockattr_init into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03 09:18:38 +02:00
Florian Weimer
0af0ccc2d5 nptl: Move pthread_rwlockattr_getpshared into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03 09:18:35 +02:00
Florian Weimer
9f13a95b6f nptl: Move pthread_rwlockattr_getkind_np into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03 09:18:31 +02:00
Florian Weimer
a8841e00d6 nptl: Move pthread_rwlockattr_destroy into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03 09:18:25 +02:00
Florian Weimer
e8a9597159 nptl: Move pthread_rwlock_trywrlock into libc
And __pthread_rwlock_trywrlock as a compatibility symbol.

Remove the unused __libc_rwlock_trywrlock macro.

The symbols were moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03 09:18:20 +02:00
Florian Weimer
c96dddd731 nptl: Move pthread_rwlock_tryrdlock into libc
And __pthread_rwlock_tryrdlock as a compatibility symbol.

Remove the unused __libc_rwlock_tryrdlock macro.

The symbols were moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03 09:18:16 +02:00
Florian Weimer
e7d2d48e56 nptl: Move pthread_rwlock_timedwrlock into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03 09:18:12 +02:00
Florian Weimer
2392feb171 nptl: Move pthread_rwlock_timedrdlock into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03 09:18:04 +02:00
Florian Weimer
63627246f3 nptl: Move pthread_rwlock_init into libc
And __pthread_rwlock_init as a compatibility symbol.

__libc_rwlock_init is changed to call __pthread_rwlock_init directly.

The symbols were moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03 09:17:59 +02:00
Florian Weimer
504ac633b0 nptl: Move pthread_rwlock_destroy into libc
And __pthread_rwlock_destroy as a compatibility symbol.

rwlocks do not need finalization, so change __libc_rwlock_fini to do
nothing.

The symbols were moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03 09:17:36 +02:00
Florian Weimer
2cf5b43bcb nptl: Move pthread_rwlock_clockwrlock into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03 09:17:27 +02:00
Florian Weimer
0ace9b197c nptl: Move pthread_rwlock_clockrdlock into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03 09:16:49 +02:00
Florian Weimer
2c5c5c87c9 nptl: Move tss_set into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

__pthread_setspecific@@GLIBC_2.34 is no longer needed after the move,
so it is removed with this commit, too.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03 08:18:08 +02:00
Florian Weimer
a062ba3836 nptl: Move tss_get into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

__pthread_getspecific@@GLIBC_2.34 is no longer needed after the move,
so it is removed with this commit, too.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03 08:18:01 +02:00
Florian Weimer
deb317d510 nptl: Move tss_delete into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

__pthread_key_delete@@GLIBC_PRIVATE is no longer needed after that,
so it is removed as well.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03 08:17:38 +02:00
Florian Weimer
e4036b1ce9 nptl: Move tss_create into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

__pthread_key_create@@GLIBC_2.34 is no longer needed by glibc
itself with this change, but __pthread_key_create is used by
libstdc++, so it still has to be exported as a public symbol.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03 08:17:29 +02:00
Florian Weimer
96e61709b4 nptl: Move thrd_exit into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

The __pthread_exit@@GLIBC_PRIVATE symbol is no longer needed
after this change, so remove it.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03 08:17:15 +02:00
Florian Weimer
ae4a5ca074 nptl: Move mtx_unlock into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

__pthread_mutex_unlock@GLIBC_2.34 is not removed in this commit
because it is still used from nptl/nptl-init.c.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03 08:16:48 +02:00
Florian Weimer
08970190fc nptl: Move mtx_trylock into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

The __pthread_mutex_trylock@@GLIBC_2.34 symbol version is no longer
needed because the call is now internal to libc, so remove it with
this commit.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03 08:15:58 +02:00
Florian Weimer
032a9e17a7 nptl: Move mtx_timedlock into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

The __pthread_mutex_timedlock@@GLIBC_PRIVATE export is no longer
needed, so it is removed with this commit.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03 08:15:53 +02:00
Florian Weimer
b7863c732e nptl: Move mtx_lock into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

__pthread_mutex_lock@GLIBC_2.34 is not removed in this commit
because it is still used from nptl/nptl-init.c.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03 08:15:41 +02:00
Florian Weimer
f44c9a24ed nptl: Move mtx_init into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

The calls to __pthread_mutex_init, __pthread_mutexattr_init,
__pthread_mutexattr_settype are now private and no longer need
to be exported.  This allows the removal of the newly added
GLIBC_2.34 symbol versions for those functions.

Also clean up some weak declarations in <libc-lockP.h> for
these functions.  They are not needed and potentially incorrect
for static linking of mtx_init.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03 08:15:22 +02:00
Florian Weimer
17b67416c5 nptl: Move mtx_destroy into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

The __pthread_mutex_destroy@@GLIBC_2.34 symbol is no longer
neded because this commit makes __pthread_mutex_destroy@GLIBC_2.0
a compatibility symbol, so remove the new symbol version.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03 08:15:15 +02:00
Florian Weimer
cf3fff1c19 nptl: Move cnd_wait into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

The __pthread_cond_wait@@GLIBC_PRIVATE symbol is no longer
neded, so remove that as well.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03 08:15:10 +02:00
Florian Weimer
08a31ef923 nptl: Move cnd_timedwait into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

The __pthread_cond_timedwait@@GLIBC_PRIVATE symbol is no longer
neded, so remove that as well.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03 08:15:04 +02:00
Florian Weimer
eef936eb45 nptl: Move cnd_signal into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

The __pthread_cond_signal@@GLIBC_PRIVATE symbol is no longer
neded, so remove that as well.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03 08:14:49 +02:00
Florian Weimer
3eab466e56 nptl: Move cnd_init into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

The __pthread_cond_init@@GLIBC_PRIVATE symbol is no longer
neded, so remove that as well.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03 08:14:38 +02:00
Florian Weimer
f11c293a4c nptl: Move cnd_destroy into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

The __pthread_cond_destroy@@GLIBC_PRIVATE symbol is no longer
neded, so remove that as well.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03 08:14:28 +02:00
Florian Weimer
0431f171da nptl: Move cnd_broadcast into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

The __pthread_cond_broadcast@@GLIBC_PRIVATE symbol is no longer
neded, so remove that as well.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03 08:14:17 +02:00
Florian Weimer
575295fc83 nptl: Move call_once into libc
The symbol was moved using scripts/move-symbol-to-libc.py.

This change also turns __pthread_once into a compatibility symbol
because after the call_once move, an internal call to __pthread_once
can be used.  This an adjustment to __libc_once: Outside libc (e.g.,
in nscd), it has to call pthread_once.  With __pthread_once as a
compatibility symbol, it is no longer to add a new GLIBC_2.34
version after the move from libpthread, and this commit removes
the new __pthread_once@@GLIBC_2.34 version.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03 08:14:01 +02:00
Martin Sebor
b25b067491 Pass a valid pointer to pthread_setspecific to avoid GCC 11 warning. 2021-04-27 19:07:49 -06:00
Martin Sebor
a1561c3bbe Add __attribute_access_none to disable GCC warnings [BZ #27714]
GCC 11 warns when a pointer to an uninitialized object is passed
to a function that takes a const-qualified argument.  This is done
on the assumption that most such functions read from the object.
For the rare case of a function that doesn't, GCC 11 extends
attribute access to add a new mode called none.

POSIX pthread_setspecific() is one such rare function that takes
a const void* argument but that doesn't read from the object it
points to.  To suppress the -Wmaybe-uninitialized issued by GCC
11 when the address of an uninitialized object is passed to it
(e.g., the result of malloc()), this change #defines
__attr_access_none in cdefs.h and uses the macro on the function
in sysdeps/htl/pthread.h and sysdeps/nptl/pthread.h.
2021-04-27 13:01:55 -06:00
Florian Weimer
24f261f27f nptl: Remove __h_errno_location from libpthread
The existing definition in libc will be used instead.

The symbol was moved (that is, removed) using
scripts/move-symbol-to-libc.py.
2021-04-23 18:08:38 +02:00
Florian Weimer
2b6a4307e9 nptl: Remove __res_state from libpthread
The existing definition in libc will be used instead.

The symbol was moved (that is, removed) using
scripts/move-symbol-to-libc.py.
2021-04-23 18:08:37 +02:00
Florian Weimer
4baf02b332 nptl: Move pthread_spin_trylock into libc
The symbol was moved using scripts/move-symbol-to-libc.py.
2021-04-23 17:06:48 +02:00
Florian Weimer
da8e3710d8 nptl: Move pthread_spin_lock into libc
The symbol was moved using scripts/move-symbol-to-libc.py.
2021-04-23 17:06:46 +02:00
Florian Weimer
ce4b3b7bef nptl: Move pthread_spin_init, Move pthread_spin_unlock into libc
For some architectures, the two functions are aliased, so these
symbols need to be moved at the same time.

The symbols were moved using scripts/move-symbol-to-libc.py.
2021-04-23 17:06:44 +02:00
Florian Weimer
c7b1cd4ad1 nptl: Move pthread_spin_destroy into libc
The symbol was moved using scripts/move-symbol-to-libc.py.
2021-04-23 17:06:42 +02:00
Florian Weimer
d9b600c985 nptl: Move pthread_condattr_setpshared into libc
The symbol was moved using scripts/move-symbol-to-libc.py.
2021-04-23 11:17:10 +02:00
Florian Weimer
6a75fefc2c nptl: Move pthread_condattr_setclock into libc
The symbol was moved using scripts/move-symbol-to-libc.py.
2021-04-23 11:02:54 +02:00
Florian Weimer
2a775a9ea5 nptl: Move pthread_condattr_getpshared into libc
The symbol was moved using scripts/move-symbol-to-libc.py.
2021-04-23 11:00:53 +02:00
Florian Weimer
ed00dcbbd6 nptl: Move pthread_condattr_getclock into libc
The symbol was moved using scripts/move-symbol-to-libc.py.
2021-04-23 10:55:07 +02:00
Florian Weimer
b76c066d09 nptl: Move pthread_mutexattr_settype, __pthread_mutexattr_settype into libc
And pthread_mutexattr_setkind_np as a compatibility symbol.

__pthread_mutexattr_settype is used in mtx_init from libpthread,
so this commit adds a GLIBC_2.34 symbol version for it.

The symbols were moved using scripts/move-symbol-to-libc.py.
2021-04-23 09:51:57 +02:00
Florian Weimer
1ec4cd5ab4 nptl: Move pthread_mutexattr_setrobust into libc
And pthread_mutexattr_getrobust_np as a compat symbol.

The symbols were moved using scripts/move-symbol-to-libc.py.
2021-04-23 09:51:57 +02:00
Florian Weimer
8a229ee93c nptl: Move pthread_mutexattr_setpshared into libc
The symbol was moved using scripts/move-symbol-to-libc.py.
2021-04-23 09:51:57 +02:00
Florian Weimer
241ac38c33 nptl: Move pthread_mutexattr_setprotocol into libc
The symbol was moved using scripts/move-symbol-to-libc.py.
2021-04-23 09:51:57 +02:00
Florian Weimer
c66772281f nptl: Move pthread_mutexattr_setprioceiling into libc
The symbol was moved using scripts/move-symbol-to-libc.py.
2021-04-23 09:51:57 +02:00
Florian Weimer
506385d30e nptl: Move pthread_mutexattr_init, __pthread_mutexattr_init into libc
__pthread_mutexattr_init cannot be be made a compat symbol because
it is used in mtx_init, which is still in libpthread.

The symbols were moved using scripts/move-symbol-to-libc.py.
2021-04-23 09:51:56 +02:00
Florian Weimer
2a23e899e2 nptl: Move pthread_mutexattr_gettype into libc
And pthread_mutexattr_getkind_np as a compatibility symbol.
(There is no declaration in <pthread.h>, so there is no need
to add an alias or a deprecation warning there.)

The symbols were moved using scripts/move-symbol-to-libc.py.
2021-04-23 09:51:19 +02:00
Florian Weimer
9b7ab14e11 nptl: Move pthread_mutexattr_getrobust into libc
And pthread_mutexattr_getrobust_np as a compat symbol.

The symbols were moved using scripts/move-symbol-to-libc.py.
2021-04-23 09:46:03 +02:00
Florian Weimer
2e825f7d5a nptl: Move pthread_mutexattr_getpshared into libc
The symbol was moved using scripts/move-symbol-to-libc.py.
2021-04-23 09:45:48 +02:00
Florian Weimer
9f2f158b35 nptl: Move pthread_mutexattr_getprotocol into libc
The symbol was moved using scripts/move-symbol-to-libc.py.
2021-04-23 09:45:29 +02:00
Florian Weimer
d236322b6f nptl: Move pthread_mutexattr_getprioceiling into libc
The symbol was moved using scripts/move-symbol-to-libc.py.
2021-04-23 09:45:09 +02:00
Florian Weimer
fd42022a10 nptl: Move pthread_mutexattr_destroy into libc
And __pthread_mutexattr_destroy as a compat symbol (so no
GLIBC_2.34 symbol version is added for it).

The symbols were moved using scripts/move-symbol-to-libc.py.
2021-04-23 09:44:49 +02:00
Florian Weimer
a2b0f2e186 nptl: Move pthread_mutex_trylock, __pthread_mutex_trylock into libc
The symbols were moved using scripts/move-symbol-to-libc.py.

__pthread_mutex_trylock is used to implement mtx_timedlock,
which still resides in libpthread, so add a GLIBC_2.34 version
for it, to match the existing GLIBC_2.0 version.
2021-04-23 09:44:23 +02:00
Florian Weimer
4372dc7eaa nptl: Move pthread_mutex_timedlock, pthread_mutex_clocklock to libc
The symbols were moved using scripts/move-symbol-to-libc.py.
The symbol aliasing follows pthread_cond_timedwait et al.
Missing hidden prototypes had to be added to nptl/pthreadP.h
for consistency.
2021-04-23 09:43:24 +02:00
Florian Weimer
a2975191d0 nptl: Move pthread_mutex_setprioceiling into libc
The symbol was moved using scripts/move-symbol-to-libc.py.
2021-04-23 09:43:08 +02:00
Florian Weimer
4b85c6f55f nptl: Move pthread_mutex_getprioceiling into libc
The symbol was moved using scripts/move-symbol-to-libc.py.
2021-04-23 09:42:51 +02:00
Florian Weimer
6f3e54d404 nptl: Do not build nptl/tst-pthread-gdb-attach as PIE 2021-04-22 19:54:29 +02:00
Florian Weimer
e4f1c0de9c nptl: Move pthread_kill_other_threads_np compatibility symbol into libc
And stop including the function for new architectures.
2021-04-22 19:50:16 +02:00
Florian Weimer
33b20249b5 nptl: Move pthread_atfork compatibility symbol to libc
The symbol was moved using scripts/move-symbol-to-libc.py.

There is no new symbol version because of the compatibility symbol
status.  The __pthread_atfork reference in nptl/Versions was unused.
2021-04-22 16:02:59 +02:00
Florian Weimer
f553dc0660 nptl: Check for compatible GDB in nptl/tst-pthread-gdb-attach
Also do not clear the subprocess environment, in case running
GDB needs certain environment variables.
2021-04-22 16:01:08 +02:00
Florian Weimer
1d67cf9e8a nptl: Remove remnants of the libc/libpthread forwarder interface
All previously forwarded functions are now implemented in libc.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-04-21 19:49:51 +02:00
Florian Weimer
486010a3c8 nptl: Move setxid broadcast implementation into libc
The signal handler is exported as __nptl_setxid_sighandler, so
that the libpthread initialization code can install it.  This
is sufficient for now because it is guarantueed to happen before
the first pthread_create call.
2021-04-21 19:49:51 +02:00
Florian Weimer
08129b155e nptl: Move core condition variable functions into libc
Onl pthread_cond_clockwait did not have a forwarder, so it needs
a new symbol version.

Some complications arise due to the need to supply hidden aliases,
GLIBC_PRIVATE exports (for the C11 condition variable implementation
that still remains in libpthread) and 64-bit time_t stubs.

pthread_cond_broadcast, pthread_cond_signal,  pthread_cond_timedwait,
pthread_cond_wait, pthread_cond_clockwait have been moved using
scripts/move-symbol-to-libc.py.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-04-21 19:49:51 +02:00
Florian Weimer
27a448223c nptl: Move core mutex functions into libc
This is complicated because of a second compilation of
nptl/pthread_mutex_lock.c via nptl/pthread_mutex_cond_lock.c.
PTHREAD_MUTEX_VERSIONS is introduced to suppress symbol versions
in that case.

The symbols __pthread_mutex_lock, __pthread_mutex_unlock,
__pthread_mutex_init, __pthread_mutex_destroy, pthread_mutex_lock,
pthread_mutex_unlock, pthread_mutex_init, pthread_mutex_destroy
have been moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-04-21 19:49:51 +02:00
Florian Weimer
99f841c441 nptl: pthread_mutex_lock, pthread_mutex_unock single-threaded optimization
This is optimization is similar in spirit to the SINGLE_THREAD_P check
in the malloc implementation.  Doing this in generic code allows us
to prioritize those cases which are likely to occur in single-threaded
programs (normal and recursive mutexes).

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-04-21 19:49:51 +02:00
Florian Weimer
eda0c098ed nptl: Move internal symbol __mutex_aconf into libc
This is in preparation of moving the mutex code into libc.

__pthread_tunables_init is now called via __pthread_early_init.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-04-21 19:49:51 +02:00
Florian Weimer
798cacde76 nptl: Move the internal thread priority protection symbols into libc
This is a prerequisite for moving the mutex implementation.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-04-21 19:49:51 +02:00