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| author | Ulrich Drepper <drepper@redhat.com> | 2009-01-29 20:38:04 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2009-01-29 20:38:04 +0000 |
| commit | cca50323b6a80283886c5fb6e2cff25f6c2d006b (patch) | |
| tree | 3787ee6c3122d8692610861baba3db91b997e8d8 /nptl/sysdeps/pthread/unwind-forcedunwind.c | |
| parent | cdf77dd87b27260d1aefbad18aaa169d4a3a6121 (diff) | |
| download | glibc-cca50323b6a80283886c5fb6e2cff25f6c2d006b.tar.gz | |
* allocatestack.c (__free_stacks): Renamed from free_stacks.
(__free_stack_cache): Removed. Change callers to call __free_stacks.
* init.c (nptl_freeres): New function.
(pthread_functions): Initialize ptr_freeres to nptl_freeres.
* pthreadP.h: Don't declare __free_stack_cache. Declare __free_stacks.
* sysdeps/pthread/unwind-forcedunwind.c (libgcc_s_handle): New
variable.
(pthread_cancel_init): Depend in libgcc_s_handle for decision to
load DSO. Assign last.
(__unwind_freeres): New function.
* allocatestack.c (__reclaim_stacks): Reset in_flight_stack later
for better debugging. No need to use stack_list_add here.
Diffstat (limited to 'nptl/sysdeps/pthread/unwind-forcedunwind.c')
| -rw-r--r-- | nptl/sysdeps/pthread/unwind-forcedunwind.c | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/nptl/sysdeps/pthread/unwind-forcedunwind.c b/nptl/sysdeps/pthread/unwind-forcedunwind.c index 6792d719d3..63f359bd9d 100644 --- a/nptl/sysdeps/pthread/unwind-forcedunwind.c +++ b/nptl/sysdeps/pthread/unwind-forcedunwind.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2003, 2005, 2006 Free Software Foundation, Inc. +/* Copyright (C) 2003, 2005, 2006, 2009 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Jakub Jelinek <jakub@redhat.com>. @@ -22,6 +22,7 @@ #include <unwind.h> #include <pthreadP.h> +static void *libgcc_s_handle; static void (*libgcc_s_resume) (struct _Unwind_Exception *exc); static _Unwind_Reason_Code (*libgcc_s_personality) (int, _Unwind_Action, _Unwind_Exception_Class, struct _Unwind_Exception *, @@ -37,7 +38,7 @@ pthread_cancel_init (void) void *resume, *personality, *forcedunwind, *getcfa; void *handle; - if (__builtin_expect (libgcc_s_getcfa != NULL, 1)) + if (__builtin_expect (libgcc_s_handle != NULL, 1)) { /* Force gcc to reload all values. */ asm volatile ("" ::: "memory"); @@ -61,11 +62,24 @@ pthread_cancel_init (void) libgcc_s_resume = resume; libgcc_s_personality = personality; libgcc_s_forcedunwind = forcedunwind; - /* Make sure libgcc_s_getcfa is written last. Otherwise, + libgcc_s_getcfa = getcfa; + /* Make sure libgcc_s_handle is written last. Otherwise, pthread_cancel_init might return early even when the pointer the caller is interested in is not initialized yet. */ atomic_write_barrier (); - libgcc_s_getcfa = getcfa; + libgcc_s_handle = handle; +} + +void +__libc_freeres_fn_section +__unwind_freeres (void) +{ + void *handle = libgcc_s_handle; + if (handle != NULL) + { + libgcc_s_handle = NULL; + __libc_dlclose (handle); + } } void |