1a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbock/* libunwind - a platform-independent unwind library 2a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbock Copyright (c) 2002-2003 Hewlett-Packard Development Company, L.P. 3a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbock Contributed by David Mosberger-Tang <davidm@hpl.hp.com> 4a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbock 5a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbock Modified for x86_64 by Max Asbock <masbock@us.ibm.com> 6a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbock 7a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbockThis file is part of libunwind. 8a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbock 9a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbockPermission is hereby granted, free of charge, to any person obtaining 10a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbocka copy of this software and associated documentation files (the 11a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbock"Software"), to deal in the Software without restriction, including 12a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbockwithout limitation the rights to use, copy, modify, merge, publish, 13a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbockdistribute, sublicense, and/or sell copies of the Software, and to 14a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbockpermit persons to whom the Software is furnished to do so, subject to 15a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbockthe following conditions: 16a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbock 17a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbockThe above copyright notice and this permission notice shall be 18a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbockincluded in all copies or substantial portions of the Software. 19a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbock 20a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbockTHE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 21a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbockEXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 22a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbockMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 23a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbockNONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 24a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbockLIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 25a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbockOF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 26a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbockWITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ 27a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbock 28a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbock#include "unwind_i.h" 29a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbock 30a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbockPROTECTED int 31a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbockunw_get_proc_info (unw_cursor_t *cursor, unw_proc_info_t *pi) 32a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbock{ 33a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbock struct cursor *c = (struct cursor *) cursor; 34e09e6ce1ad753017313688eafc466656c322f9d0com[davidm]!masbock 357ac9665fd3b12ceeca55254db1c055170579b01emostang.com!davidm if (dwarf_make_proc_info (&c->dwarf) < 0) 367ac9665fd3b12ceeca55254db1c055170579b01emostang.com!davidm { 377ac9665fd3b12ceeca55254db1c055170579b01emostang.com!davidm /* On x86-64, some key routines such as _start() and _dl_start() 387ac9665fd3b12ceeca55254db1c055170579b01emostang.com!davidm are missing DWARF unwind info. We don't want to fail in that 397ac9665fd3b12ceeca55254db1c055170579b01emostang.com!davidm case, because those frames are uninteresting and just mark 407ac9665fd3b12ceeca55254db1c055170579b01emostang.com!davidm the end of the frame-chain anyhow. */ 417ac9665fd3b12ceeca55254db1c055170579b01emostang.com!davidm memset (pi, 0, sizeof (*pi)); 427ac9665fd3b12ceeca55254db1c055170579b01emostang.com!davidm pi->start_ip = c->dwarf.ip; 437ac9665fd3b12ceeca55254db1c055170579b01emostang.com!davidm pi->end_ip = c->dwarf.ip + 1; 447ac9665fd3b12ceeca55254db1c055170579b01emostang.com!davidm return 0; 457ac9665fd3b12ceeca55254db1c055170579b01emostang.com!davidm } 46e09e6ce1ad753017313688eafc466656c322f9d0com[davidm]!masbock *pi = c->dwarf.pi; 47e09e6ce1ad753017313688eafc466656c322f9d0com[davidm]!masbock return 0; 48a766efd844260866e0d216f6eeef87f4593f60b2ibm.com!masbock} 49