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-rw-r--r--nptl/sysdeps/pthread/unwind-forcedunwind.c151
1 files changed, 0 insertions, 151 deletions
diff --git a/nptl/sysdeps/pthread/unwind-forcedunwind.c b/nptl/sysdeps/pthread/unwind-forcedunwind.c
deleted file mode 100644
index 9d7bdc5b90..0000000000
--- a/nptl/sysdeps/pthread/unwind-forcedunwind.c
+++ /dev/null
@@ -1,151 +0,0 @@
-/* Copyright (C) 2003-2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Jakub Jelinek <jakub@redhat.com>.
-
- 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; see the file COPYING.LIB. If
- not, see <http://www.gnu.org/licenses/>. */
-
-#include <dlfcn.h>
-#include <stdio.h>
-#include <unwind.h>
-#include <pthreadP.h>
-#include <sysdep.h>
-#include <gnu/lib-names.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 *,
- struct _Unwind_Context *);
-static _Unwind_Reason_Code (*libgcc_s_forcedunwind)
- (struct _Unwind_Exception *, _Unwind_Stop_Fn, void *);
-static _Unwind_Word (*libgcc_s_getcfa) (struct _Unwind_Context *);
-
-void
-__attribute_noinline__
-pthread_cancel_init (void)
-{
- void *resume;
- void *personality;
- void *forcedunwind;
- void *getcfa;
- void *handle;
-
- if (__glibc_likely (libgcc_s_handle != NULL))
- {
- /* Force gcc to reload all values. */
- asm volatile ("" ::: "memory");
- return;
- }
-
- handle = __libc_dlopen (LIBGCC_S_SO);
-
- if (handle == NULL
- || (resume = __libc_dlsym (handle, "_Unwind_Resume")) == NULL
- || (personality = __libc_dlsym (handle, "__gcc_personality_v0")) == NULL
- || (forcedunwind = __libc_dlsym (handle, "_Unwind_ForcedUnwind"))
- == NULL
- || (getcfa = __libc_dlsym (handle, "_Unwind_GetCFA")) == NULL
-#ifdef ARCH_CANCEL_INIT
- || ARCH_CANCEL_INIT (handle)
-#endif
- )
- __libc_fatal (LIBGCC_S_SO " must be installed for pthread_cancel to work\n");
-
- PTR_MANGLE (resume);
- libgcc_s_resume = resume;
- PTR_MANGLE (personality);
- libgcc_s_personality = personality;
- PTR_MANGLE (forcedunwind);
- libgcc_s_forcedunwind = forcedunwind;
- PTR_MANGLE (getcfa);
- 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_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
-_Unwind_Resume (struct _Unwind_Exception *exc)
-{
- if (__glibc_unlikely (libgcc_s_handle == NULL))
- pthread_cancel_init ();
- else
- atomic_read_barrier ();
-
- void (*resume) (struct _Unwind_Exception *exc) = libgcc_s_resume;
- PTR_DEMANGLE (resume);
- resume (exc);
-}
-
-_Unwind_Reason_Code
-__gcc_personality_v0 (int version, _Unwind_Action actions,
- _Unwind_Exception_Class exception_class,
- struct _Unwind_Exception *ue_header,
- struct _Unwind_Context *context)
-{
- if (__glibc_unlikely (libgcc_s_handle == NULL))
- pthread_cancel_init ();
- else
- atomic_read_barrier ();
-
- _Unwind_Reason_Code (*personality)
- (int, _Unwind_Action, _Unwind_Exception_Class, struct _Unwind_Exception *,
- struct _Unwind_Context *) = libgcc_s_personality;
- PTR_DEMANGLE (personality);
- return personality (version, actions, exception_class, ue_header, context);
-}
-
-_Unwind_Reason_Code
-_Unwind_ForcedUnwind (struct _Unwind_Exception *exc, _Unwind_Stop_Fn stop,
- void *stop_argument)
-{
- if (__glibc_unlikely (libgcc_s_handle == NULL))
- pthread_cancel_init ();
- else
- atomic_read_barrier ();
-
- _Unwind_Reason_Code (*forcedunwind)
- (struct _Unwind_Exception *, _Unwind_Stop_Fn, void *)
- = libgcc_s_forcedunwind;
- PTR_DEMANGLE (forcedunwind);
- return forcedunwind (exc, stop, stop_argument);
-}
-
-_Unwind_Word
-_Unwind_GetCFA (struct _Unwind_Context *context)
-{
- if (__glibc_unlikely (libgcc_s_handle == NULL))
- pthread_cancel_init ();
- else
- atomic_read_barrier ();
-
- _Unwind_Word (*getcfa) (struct _Unwind_Context *) = libgcc_s_getcfa;
- PTR_DEMANGLE (getcfa);
- return getcfa (context);
-}