diff options
Diffstat (limited to 'sysdeps/gnu')
-rw-r--r-- | sysdeps/gnu/Makefile | 15 | ||||
-rw-r--r-- | sysdeps/gnu/rt-unwind-resume.c | 1 | ||||
-rw-r--r-- | sysdeps/gnu/unwind-resume.c | 65 |
3 files changed, 80 insertions, 1 deletions
diff --git a/sysdeps/gnu/Makefile b/sysdeps/gnu/Makefile index 5b9a0a56ed..b33d1004a5 100644 --- a/sysdeps/gnu/Makefile +++ b/sysdeps/gnu/Makefile @@ -1,4 +1,4 @@ -# Copyright (C) 1996,1997,1998,1999,2001,2002,2003,2004,2005,2006 +# Copyright (C) 1996,1997,1998,1999,2001,2002,2003,2004,2005,2006,2010 # Free Software Foundation, Inc. # This file is part of the GNU C Library. @@ -77,3 +77,16 @@ endif ifeq ($(subdir),misc) sysdep_headers += sys/mtio.h endif + + +ifeq ($(subdir),csu) +routines += unwind-resume +shared-only-routines += unwind-resume +CFLAGS-unwind-resume.c += -fexceptions -fasynchronous-unwind-tables +endif + +ifeq ($(subdir),rt) +librt-sysdep_routines += rt-unwind-resume +librt-shared-only-routines += rt-unwind-resume +CFLAGS-rt-unwind-resume.c += -fexceptions -fasynchronous-unwind-tables +endif diff --git a/sysdeps/gnu/rt-unwind-resume.c b/sysdeps/gnu/rt-unwind-resume.c new file mode 100644 index 0000000000..743e675d4d --- /dev/null +++ b/sysdeps/gnu/rt-unwind-resume.c @@ -0,0 +1 @@ +#include <unwind-resume.c> diff --git a/sysdeps/gnu/unwind-resume.c b/sysdeps/gnu/unwind-resume.c new file mode 100644 index 0000000000..69f3e04c43 --- /dev/null +++ b/sysdeps/gnu/unwind-resume.c @@ -0,0 +1,65 @@ +/* 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 <libgcc_s.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 void +init (void) +{ + void *resume, *personality; + void *handle; + + handle = __libc_dlopen (LIBGCC_S_SO); + + if (handle == NULL + || (resume = __libc_dlsym (handle, "_Unwind_Resume")) == NULL + || (personality = __libc_dlsym (handle, "__gcc_personality_v0")) == NULL) + __libc_fatal (LIBGCC_S_SO " must be installed for pthread_cancel to work\n"); + + libgcc_s_resume = resume; + libgcc_s_personality = personality; +} + +void +_Unwind_Resume (struct _Unwind_Exception *exc) +{ + if (__builtin_expect (libgcc_s_resume == NULL, 0)) + 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)) + init (); + return libgcc_s_personality (version, actions, exception_class, + ue_header, context); +} |