Under the name __nptl_free_tcb.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
lowlevellock \
nptl-stack \
nptl_deallocate_tsd \
+ nptl_free_tcb \
nptl_nthreads \
nptl_setxid \
nptlfreeres \
__mutex_aconf;
__nptl_deallocate_stack;
__nptl_deallocate_tsd;
+ __nptl_free_tcb;
__nptl_nthreads;
__nptl_setxid_sighandler;
__nptl_stack_list_add;
--- /dev/null
+/* TCB deallocation for NPTL.
+ Copyright (C) 2002-2021 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+ 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/>. */
+
+#include <nptl-stack.h>
+#include <pthreadP.h>
+#include <stdlib.h>
+
+void
+__nptl_free_tcb (struct pthread *pd)
+{
+ /* The thread is exiting now. */
+ if (atomic_bit_test_set (&pd->cancelhandling, TERMINATED_BIT) == 0)
+ {
+ /* Free TPP data. */
+ if (pd->tpp != NULL)
+ {
+ struct priority_protection_data *tpp = pd->tpp;
+
+ pd->tpp = NULL;
+ free (tpp);
+ }
+
+ /* Queue the stack memory block for reuse and exit the process. The
+ kernel will signal via writing to the address returned by
+ QUEUE-STACK when the stack is available. */
+ __nptl_deallocate_stack (pd);
+ }
+}
+libc_hidden_def (__nptl_free_tcb)
/* Deallocate a thread's stack after optionally making sure the thread
descriptor is still valid. */
-extern void __free_tcb (struct pthread *pd) attribute_hidden;
+extern void __nptl_free_tcb (struct pthread *pd);
+libc_hidden_proto (__nptl_free_tcb)
/* Change the permissions of a thread stack. Called from
_dl_make_stacks_executable and pthread_create. */
#include <createthread.c>
-/* Deallocate a thread's stack after optionally making sure the thread
- descriptor is still valid. */
-void
-__free_tcb (struct pthread *pd)
-{
- /* The thread is exiting now. */
- if (__builtin_expect (atomic_bit_test_set (&pd->cancelhandling,
- TERMINATED_BIT) == 0, 1))
- {
- /* Free TPP data. */
- if (__glibc_unlikely (pd->tpp != NULL))
- {
- struct priority_protection_data *tpp = pd->tpp;
-
- pd->tpp = NULL;
- free (tpp);
- }
-
- /* Queue the stack memory block for reuse and exit the process. The
- kernel will signal via writing to the address returned by
- QUEUE-STACK when the stack is available. */
- __nptl_deallocate_stack (pd);
- }
-}
-
/* Local function to start thread and handle cleanup.
createthread.c defines the macro START_THREAD_DEFN to the
declaration that its create_thread function will refer to, and
/* If the thread is detached free the TCB. */
if (IS_DETACHED (pd))
/* Free the TCB. */
- __free_tcb (pd);
+ __nptl_free_tcb (pd);
/* We cannot call '_exit' here. '_exit' will terminate the process.
if ((pd->cancelhandling & EXITING_BITMASK) != 0)
/* Note that the code in __free_tcb makes sure each thread
control block is freed only once. */
- __free_tcb (pd);
+ __nptl_free_tcb (pd);
return result;
}
*thread_return = pd_result;
/* Free the TCB. */
- __free_tcb (pd);
+ __nptl_free_tcb (pd);
}
else
pd->joinid = NULL;