| /* libunwind - a platform-independent unwind library |
| Copyright (C) 2006-2007 IBM |
| Contributed by |
| Corey Ashford cjashfor@us.ibm.com |
| Jose Flavio Aguilar Paulino <jflavio@br.ibm.com> <joseflavio@gmail.com> |
| |
| This file is part of libunwind. |
| |
| Permission is hereby granted, free of charge, to any person obtaining |
| a copy of this software and associated documentation files (the |
| "Software"), to deal in the Software without restriction, including |
| without limitation the rights to use, copy, modify, merge, publish, |
| distribute, sublicense, and/or sell copies of the Software, and to |
| permit persons to whom the Software is furnished to do so, subject to |
| the following conditions: |
| |
| The above copyright notice and this permission notice shall be |
| included in all copies or substantial portions of the Software. |
| |
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE |
| LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
| OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
| WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ |
| |
| #include <stdlib.h> |
| |
| #include "unwind_i.h" |
| |
| #ifndef UNW_REMOTE_ONLY |
| |
| #include <sys/syscall.h> |
| |
| /* sigreturn() is a no-op on x86_64 glibc. */ |
| |
| static NORETURN inline long |
| my_rt_sigreturn (void *new_sp) |
| { |
| /* XXX: empty stub. */ |
| abort (); |
| } |
| |
| HIDDEN inline int |
| ppc32_local_resume (unw_addr_space_t as, unw_cursor_t *cursor, void *arg) |
| { |
| /* XXX: empty stub. */ |
| return -UNW_EINVAL; |
| } |
| |
| #endif /* !UNW_REMOTE_ONLY */ |
| |
| /* This routine is responsible for copying the register values in |
| cursor C and establishing them as the current machine state. */ |
| |
| static inline int |
| establish_machine_state (struct cursor *c) |
| { |
| /* XXX: empty stub. */ |
| return 0; |
| } |
| |
| PROTECTED int |
| unw_resume (unw_cursor_t *cursor) |
| { |
| struct cursor *c = (struct cursor *) cursor; |
| int ret; |
| |
| Debug (1, "(cursor=%p)\n", c); |
| |
| if ((ret = establish_machine_state (c)) < 0) |
| return ret; |
| |
| return (*c->dwarf.as->acc.resume) (c->dwarf.as, (unw_cursor_t *) c, |
| c->dwarf.as_arg); |
| } |