diff options
Diffstat (limited to 'nptl')
| -rw-r--r-- | nptl/Makefile | 2 | ||||
| -rw-r--r-- | nptl/Versions | 1 | ||||
| -rw-r--r-- | nptl/allocatestack.c | 12 | ||||
| -rw-r--r-- | nptl/libc_pthread_init.c | 8 | ||||
| -rw-r--r-- | nptl/nptl-init.c | 15 | ||||
| -rw-r--r-- | nptl/nptlfreeres.c | 31 | ||||
| -rw-r--r-- | nptl/pthreadP.h | 5 |
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; |