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103 lines
2.6 KiB
103 lines
2.6 KiB
/* libunwind - a platform-independent unwind library |
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Copyright (C) 2003-2004 Hewlett-Packard Co |
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Contributed by David Mosberger-Tang <davidm@hpl.hp.com> |
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This file is part of libunwind. |
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Copyright (c) 2003 Hewlett-Packard Co. |
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Permission is hereby granted, free of charge, to any person obtaining |
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a copy of this software and associated documentation files (the |
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"Software"), to deal in the Software without restriction, including |
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without limitation the rights to use, copy, modify, merge, publish, |
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distribute, sublicense, and/or sell copies of the Software, and to |
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permit persons to whom the Software is furnished to do so, subject to |
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the following conditions: |
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The above copyright notice and this permission notice shall be |
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included in all copies or substantial portions of the Software. |
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE |
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LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
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OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ |
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#include "compiler.h" |
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#include <libunwind.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <unistd.h> |
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#include <sys/resource.h> |
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#define panic(args...) \ |
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{ fprintf (stderr, args); exit (-1); } |
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int verbose; |
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static void |
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do_backtrace (void) |
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{ |
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unw_cursor_t cursor; |
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unw_word_t ip, sp; |
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unw_context_t uc; |
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int ret; |
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unw_getcontext (&uc); |
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if (unw_init_local (&cursor, &uc) < 0) |
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panic ("unw_init_local failed!\n"); |
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do |
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{ |
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unw_get_reg (&cursor, UNW_REG_IP, &ip); |
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unw_get_reg (&cursor, UNW_REG_SP, &sp); |
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if (verbose) |
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printf ("%016lx (sp=%016lx)\n", (long) ip, (long) sp); |
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ret = unw_step (&cursor); |
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if (ret < 0) |
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{ |
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unw_get_reg (&cursor, UNW_REG_IP, &ip); |
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panic ("FAILURE: unw_step() returned %d for ip=%lx\n", |
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ret, (long) ip); |
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} |
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} |
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while (ret > 0); |
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} |
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int |
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consume_some_stack_space (void) |
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{ |
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unw_cursor_t cursor; |
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unw_context_t uc; |
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char string[1024]; |
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memset (&cursor, 0, sizeof (cursor)); |
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memset (&uc, 0, sizeof (uc)); |
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return sprintf (string, "hello %p %p\n", &cursor, &uc); |
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} |
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int |
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main (int argc, char **argv UNUSED) |
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{ |
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struct rlimit rlim; |
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verbose = argc > 1; |
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if (consume_some_stack_space () > 9999) |
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exit (-1); /* can't happen, but don't let the compiler know... */ |
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rlim.rlim_cur = 0; |
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rlim.rlim_max = RLIM_INFINITY; |
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setrlimit (RLIMIT_DATA, &rlim); |
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setrlimit (RLIMIT_AS, &rlim); |
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do_backtrace (); |
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return 0; |
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}
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