mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-12 14:20:13 +00:00
34e59f5bfb
sysdeps/unix/sysv/linux/arm/nptl/unwind-forcedunwind.c, sysdeps/unix/sysv/linux/arm/nptl/unwind-resume.c, sysdeps/unix/sysv/linux/arm/nptl/unwind.h, sysdeps/arm/unwind-dw2-fde-glibc.c, sysdeps/arm/unwind-pe.c, sysdeps/arm/framestate.c: New files.
118 lines
4.0 KiB
C
118 lines
4.0 KiB
C
/* Copyright (C) 2003 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,
|
|
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#include <dlfcn.h>
|
|
#include <stdio.h>
|
|
#include <unwind.h>
|
|
#include <pthreadP.h>
|
|
|
|
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 *);
|
|
static void (*libgcc_s_sjlj_register) (struct SjLj_Function_Context *);
|
|
static void (*libgcc_s_sjlj_unregister) (struct SjLj_Function_Context *);
|
|
|
|
void
|
|
pthread_cancel_init (void)
|
|
{
|
|
void *resume, *personality, *forcedunwind, *getcfa;
|
|
void *handle;
|
|
void *sjlj_register, *sjlj_unregister;
|
|
|
|
if (__builtin_expect (libgcc_s_getcfa != NULL, 1))
|
|
return;
|
|
|
|
handle = __libc_dlopen ("libgcc_s.so.1");
|
|
|
|
if (handle == NULL
|
|
|| (sjlj_register = __libc_dlsym (handle, "_Unwind_SjLj_Register")) == NULL
|
|
|| (sjlj_unregister = __libc_dlsym (handle, "_Unwind_SjLj_Unregister")) == NULL
|
|
|| (resume = __libc_dlsym (handle, "_Unwind_SjLj_Resume")) == NULL
|
|
|| (personality = __libc_dlsym (handle, "__gcc_personality_sj0")) == NULL
|
|
|| (forcedunwind = __libc_dlsym (handle, "_Unwind_SjLj_ForcedUnwind"))
|
|
== NULL
|
|
|| (getcfa = __libc_dlsym (handle, "_Unwind_GetCFA")) == NULL
|
|
)
|
|
__libc_fatal ("libgcc_s.so.1 must be installed for pthread_cancel to work\n");
|
|
|
|
libgcc_s_resume = resume;
|
|
libgcc_s_personality = personality;
|
|
libgcc_s_forcedunwind = forcedunwind;
|
|
libgcc_s_getcfa = getcfa;
|
|
libgcc_s_sjlj_register = sjlj_register;
|
|
libgcc_s_sjlj_unregister = sjlj_unregister;
|
|
}
|
|
|
|
void
|
|
_Unwind_Resume (struct _Unwind_Exception *exc)
|
|
{
|
|
if (__builtin_expect (libgcc_s_resume == NULL, 0))
|
|
pthread_cancel_init ();
|
|
libgcc_s_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 (__builtin_expect (libgcc_s_personality == NULL, 0))
|
|
pthread_cancel_init ();
|
|
return libgcc_s_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 (__builtin_expect (libgcc_s_forcedunwind == NULL, 0))
|
|
pthread_cancel_init ();
|
|
return libgcc_s_forcedunwind (exc, stop, stop_argument);
|
|
}
|
|
|
|
_Unwind_Word
|
|
_Unwind_GetCFA (struct _Unwind_Context *context)
|
|
{
|
|
if (__builtin_expect (libgcc_s_getcfa == NULL, 0))
|
|
pthread_cancel_init ();
|
|
return libgcc_s_getcfa (context);
|
|
}
|
|
|
|
void
|
|
_Unwind_SjLj_Register (struct SjLj_Function_Context *fc)
|
|
{
|
|
if (__builtin_expect (libgcc_s_sjlj_register == NULL, 0))
|
|
pthread_cancel_init ();
|
|
libgcc_s_sjlj_register (fc);
|
|
}
|
|
|
|
void
|
|
_Unwind_SjLj_Unregister (struct SjLj_Function_Context *fc)
|
|
{
|
|
if (__builtin_expect (libgcc_s_sjlj_unregister == NULL, 0))
|
|
pthread_cancel_init ();
|
|
libgcc_s_sjlj_unregister (fc);
|
|
}
|