| /* libunwind - a platform-independent unwind library |
| Copyright (C) 2004 Hewlett-Packard Co |
| Contributed by David Mosberger-Tang <davidm@hpl.hp.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 "unwind_i.h" |
| |
| PROTECTED int |
| unw_get_proc_info (unw_cursor_t *cursor, unw_proc_info_t *pi) |
| { |
| struct cursor *c = (struct cursor *) cursor; |
| |
| if (dwarf_make_proc_info (&c->dwarf) < 0) |
| { |
| /* On hppa, some key routines such as _start() and _dl_start() |
| are missing DWARF unwind info. We don't want to fail in that |
| case, because those frames are uninteresting and just mark |
| the end of the frame-chain anyhow. */ |
| memset (pi, 0, sizeof (*pi)); |
| pi->start_ip = c->dwarf.ip; |
| pi->end_ip = c->dwarf.ip + 4; |
| return 0; |
| } |
| *pi = c->dwarf.pi; |
| return 0; |
| } |