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3ff119aa1d
(resume): Likewise. (nop): Remove. (main): Don't cast function pointer to different prototypes. That's apparently not allowed. icc v8.0 complains about it and GCC 3.5 will actually generate crashing code when this is done. Talk about terminated with extreme prejudice! (Logical change 1.213)
149 lines
4 KiB
C
149 lines
4 KiB
C
/* libunwind - a platform-independent unwind library
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Copyright (C) 2003 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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/* This test program checks whether proc_info lookup failures are
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cached. They must NOT be cached because it could otherwise turn
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temporary failures into permanent ones. Furthermore, we allow apps
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to return -UNW_ESTOPUNWIND to terminate unwinding (though this
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feature is deprecated and dynamic unwind info should be used
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instead). */
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#include <stdio.h>
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#include <string.h>
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#include <libunwind.h>
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int errors;
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#define panic(args...) \
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{ ++errors; fprintf (stderr, args); return -1; }
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static int
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find_proc_info (unw_addr_space_t as, unw_word_t ip, unw_proc_info_t *pip,
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int need_unwind_info, void *arg)
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{
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return -UNW_ESTOPUNWIND;
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}
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static int
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access_mem (unw_addr_space_t as, unw_word_t addr, unw_word_t *valp,
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int write, void *arg)
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{
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if (!write)
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*valp = 0;
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return 0;
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}
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static int
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access_reg (unw_addr_space_t as, unw_regnum_t regnum, unw_word_t *valp,
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int write, void *arg)
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{
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if (!write)
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*valp = 32;
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return 0;
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}
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static int
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access_fpreg (unw_addr_space_t as, unw_regnum_t regnum, unw_fpreg_t *valp,
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int write, void *arg)
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{
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if (!write)
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memset (valp, 0, sizeof (valp));
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return 0;
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}
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static int
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get_dyn_info_list_addr (unw_addr_space_t as, unw_word_t *dilap, void *arg)
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{
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return -UNW_ENOINFO;
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}
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static void
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put_unwind_info (unw_addr_space_t as, unw_proc_info_t *pi, void *arg)
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{
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++errors;
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fprintf (stderr, "%s() got called!\n", __FUNCTION__);
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}
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static int
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resume (unw_addr_space_t as, unw_cursor_t *reg, void *arg)
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{
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panic ("%s() got called!\n", __FUNCTION__);
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}
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static int
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get_proc_name (unw_addr_space_t as, unw_word_t ip, char *buf, size_t buf_len,
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unw_word_t *offp, void *arg)
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{
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panic ("%s() got called!\n", __FUNCTION__);
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}
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int
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main (int argc, char **argv)
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{
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unw_accessors_t acc;
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unw_addr_space_t as;
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int ret, verbose = 0;
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unw_cursor_t c;
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if (argc > 1 && strcmp (argv[0], "-v") == 0)
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verbose = 1;
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memset (&acc, 0, sizeof (acc));
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acc.find_proc_info = find_proc_info;
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acc.put_unwind_info = put_unwind_info;
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acc.get_dyn_info_list_addr = get_dyn_info_list_addr;
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acc.access_mem = access_mem;
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acc.access_reg = access_reg;
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acc.access_fpreg = access_fpreg;
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acc.resume = resume;
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acc.get_proc_name = get_proc_name;
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as = unw_create_addr_space (&acc, 0);
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if (!as)
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panic ("unw_create_addr_space() failed\n");
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unw_set_caching_policy (as, UNW_CACHE_GLOBAL);
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ret = unw_init_remote (&c, as, NULL);
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if (ret < 0)
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panic ("unw_init_remote() returned %d instead of 0\n", ret);
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ret = unw_step (&c);
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if (ret != -UNW_ESTOPUNWIND)
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panic ("First call to unw_step() returned %d instead of %d\n",
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ret, -UNW_ESTOPUNWIND);
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ret = unw_step (&c);
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if (ret != -UNW_ESTOPUNWIND)
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panic ("Second call to unw_step() returned %d instead of %d\n",
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ret, -UNW_ESTOPUNWIND);
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if (verbose)
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printf ("SUCCESS\n");
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return 0;
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}
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