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-rw-r--r--nptl/Makefile2
-rw-r--r--nptl/Versions1
-rw-r--r--nptl/allocatestack.c12
-rw-r--r--nptl/libc_pthread_init.c8
-rw-r--r--nptl/nptl-init.c15
-rw-r--r--nptl/nptlfreeres.c31
-rw-r--r--nptl/pthreadP.h5
7 files changed, 45 insertions, 29 deletions
diff --git a/nptl/Makefile b/nptl/Makefile
index 0f9c44a..2f2bb05 100644
--- a/nptl/Makefile
+++ b/nptl/Makefile
@@ -45,7 +45,7 @@ pthread-compat-wrappers = \
sigwait sigsuspend \
recvmsg sendmsg
-libpthread-routines = nptl-init vars events version pt-interp \
+libpthread-routines = nptl-init nptlfreeres vars events version pt-interp \
pthread_create pthread_exit pthread_detach \
pthread_join pthread_tryjoin pthread_timedjoin \
pthread_join_common \
diff --git a/nptl/Versions b/nptl/Versions
index 0ae5def..b1c2da0 100644
--- a/nptl/Versions
+++ b/nptl/Versions
@@ -271,5 +271,6 @@ libpthread {
__pthread_unwind; __pthread_get_minstack;
__pthread_barrier_init; __pthread_barrier_wait;
__shm_directory;
+ __libpthread_freeres;
}
}
diff --git a/nptl/allocatestack.c b/nptl/allocatestack.c
index 9c10b99..f9e053f 100644
--- a/nptl/allocatestack.c
+++ b/nptl/allocatestack.c
@@ -251,8 +251,8 @@ get_cached_stack (size_t *sizep, void **memp)
/* Free stacks until cache size is lower than LIMIT. */
-void
-__free_stacks (size_t limit)
+static void
+free_stacks (size_t limit)
{
/* We reduce the size of the cache. Remove the last entries until
the size is below the limit. */
@@ -288,6 +288,12 @@ __free_stacks (size_t limit)
}
}
+/* Free all the stacks on cleanup. */
+void
+__nptl_stacks_freeres (void)
+{
+ free_stacks (0);
+}
/* Add a stack frame which is not used anymore to the stack. Must be
called with the cache lock held. */
@@ -302,7 +308,7 @@ queue_stack (struct pthread *stack)
stack_cache_actsize += stack->stackblock_size;
if (__glibc_unlikely (stack_cache_actsize > stack_cache_maxsize))
- __free_stacks (stack_cache_maxsize);
+ free_stacks (stack_cache_maxsize);
}
diff --git a/nptl/libc_pthread_init.c b/nptl/libc_pthread_init.c
index f390480..e254ea2 100644
--- a/nptl/libc_pthread_init.c
+++ b/nptl/libc_pthread_init.c
@@ -77,11 +77,3 @@ __libc_pthread_init (unsigned long int *ptr, void (*reclaim) (void),
return &__libc_multiple_threads;
#endif
}
-
-#ifdef SHARED
-libc_freeres_fn (freeres_libptread)
-{
- if (__libc_pthread_functions_init)
- PTHFCT_CALL (ptr_freeres, ());
-}
-#endif
diff --git a/nptl/nptl-init.c b/nptl/nptl-init.c
index 1d3790f..907411d 100644
--- a/nptl/nptl-init.c
+++ b/nptl/nptl-init.c
@@ -78,9 +78,6 @@ extern
void __nptl_set_robust (struct pthread *);
#ifdef SHARED
-static void nptl_freeres (void);
-
-
static const struct pthread_functions pthread_functions =
{
.ptr_pthread_attr_destroy = __pthread_attr_destroy,
@@ -140,8 +137,6 @@ static const struct pthread_functions pthread_functions =
# ifdef SIGSETXID
.ptr__nptl_setxid = __nptl_setxid,
# endif
- /* For now only the stack cache needs to be freed. */
- .ptr_freeres = nptl_freeres,
.ptr_set_robust = __nptl_set_robust
};
# define ptr_pthread_functions &pthread_functions
@@ -151,16 +146,6 @@ static const struct pthread_functions pthread_functions =
#ifdef SHARED
-/* This function is called indirectly from the freeres code in libc. */
-static void
-__libc_freeres_fn_section
-nptl_freeres (void)
-{
- __unwind_freeres ();
- __free_stacks (0);
-}
-
-
static
#endif
void
diff --git a/nptl/nptlfreeres.c b/nptl/nptlfreeres.c
new file mode 100644
index 0000000..cfa54e1
--- /dev/null
+++ b/nptl/nptlfreeres.c
@@ -0,0 +1,31 @@
+/* Clean up allocated libpthread memory on demand.
+ Copyright (C) 2018 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
+ <http://www.gnu.org/licenses/>. */
+
+#include <set-hooks.h>
+#include <libc-symbols.h>
+#include <pthreadP.h>
+
+/* Free libpthread.so resources.
+ Note: Caller ensures we are called only once. */
+void
+__libpthread_freeres (void)
+{
+ call_function_static_weak (__nptl_stacks_freeres);
+ call_function_static_weak (__shm_directory_freeres);
+ call_function_static_weak (__nptl_unwind_freeres);
+}
diff --git a/nptl/pthreadP.h b/nptl/pthreadP.h
index 075530c..3cba0b6 100644
--- a/nptl/pthreadP.h
+++ b/nptl/pthreadP.h
@@ -279,8 +279,8 @@ hidden_proto (__pthread_register_cancel)
hidden_proto (__pthread_unregister_cancel)
# ifdef SHARED
extern void attribute_hidden pthread_cancel_init (void);
-extern void __unwind_freeres (void);
# endif
+extern void __nptl_unwind_freeres (void) attribute_hidden;
#endif
@@ -597,7 +597,8 @@ extern int __nptl_setxid (struct xid_command *cmdp) attribute_hidden;
extern void __nptl_set_robust (struct pthread *self);
#endif
-extern void __free_stacks (size_t limit) attribute_hidden;
+extern void __nptl_stacks_freeres (void) attribute_hidden;
+extern void __shm_directory_freeres (void) attribute_hidden;
extern void __wait_lookup_done (void) attribute_hidden;