diff options
Diffstat (limited to 'src/third_party/unwind/dist/tests/test-mem.c')
-rw-r--r-- | src/third_party/unwind/dist/tests/test-mem.c | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/src/third_party/unwind/dist/tests/test-mem.c b/src/third_party/unwind/dist/tests/test-mem.c new file mode 100644 index 00000000000..52c977488ac --- /dev/null +++ b/src/third_party/unwind/dist/tests/test-mem.c @@ -0,0 +1,103 @@ +/* libunwind - a platform-independent unwind library + Copyright (C) 2003-2004 Hewlett-Packard Co + Contributed by David Mosberger-Tang <davidm@hpl.hp.com> + +This file is part of libunwind. + +Copyright (c) 2003 Hewlett-Packard Co. + +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 "compiler.h" + +#include <libunwind.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include <sys/resource.h> + +#define panic(args...) \ + { fprintf (stderr, args); exit (-1); } + +int verbose; + +static void +do_backtrace (void) +{ + unw_cursor_t cursor; + unw_word_t ip, sp; + unw_context_t uc; + int ret; + + unw_getcontext (&uc); + if (unw_init_local (&cursor, &uc) < 0) + panic ("unw_init_local failed!\n"); + + do + { + unw_get_reg (&cursor, UNW_REG_IP, &ip); + unw_get_reg (&cursor, UNW_REG_SP, &sp); + + if (verbose) + printf ("%016lx (sp=%016lx)\n", (long) ip, (long) sp); + + ret = unw_step (&cursor); + if (ret < 0) + { + unw_get_reg (&cursor, UNW_REG_IP, &ip); + panic ("FAILURE: unw_step() returned %d for ip=%lx\n", + ret, (long) ip); + } + } + while (ret > 0); +} + +int +consume_some_stack_space (void) +{ + unw_cursor_t cursor; + unw_context_t uc; + char string[1024]; + + memset (&cursor, 0, sizeof (cursor)); + memset (&uc, 0, sizeof (uc)); + return sprintf (string, "hello %p %p\n", &cursor, &uc); +} + +int +main (int argc, char **argv UNUSED) +{ + struct rlimit rlim; + + verbose = argc > 1; + + if (consume_some_stack_space () > 9999) + exit (-1); /* can't happen, but don't let the compiler know... */ + + rlim.rlim_cur = 0; + rlim.rlim_max = RLIM_INFINITY; + setrlimit (RLIMIT_DATA, &rlim); + setrlimit (RLIMIT_AS, &rlim); + + do_backtrace (); + return 0; +} |