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cbd8648b33
Don't test read-only access to F0 and F1 registers --- according to the SCRA manual, those locations cannot even be expressed in SPILL descriptors and newer versions of GAS (as well as IAS) won't accept .spillreg directives targeting those registers.
89 lines
2.6 KiB
C
89 lines
2.6 KiB
C
/* libunwind - a platform-independent unwind library
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Copyright (C) 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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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 file verifies that read-only registers cannot be written to. */
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#include <errno.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 <libunwind.h>
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#define panic(args...) \
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do { printf (args); ++nerrors; } while (0)
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static int verbose;
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static int nerrors;
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extern void test_func (void (*) (void));
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void
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checker (void)
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{
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unw_fpreg_t fpval;
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unw_context_t uc;
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unw_cursor_t c;
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int ret;
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fpval.raw.bits[0] = 100;
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fpval.raw.bits[1] = 101;
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unw_getcontext (&uc);
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if ((ret = unw_init_local (&c, &uc)) < 0)
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panic ("%s: unw_init_local (ret=%d)\n", __FUNCTION__, ret);
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if ((ret = unw_step (&c)) < 0)
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panic ("%s: unw_step (ret=%d)\n", __FUNCTION__, ret);
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if ((ret = unw_step (&c)) < 0)
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panic ("%s: unw_step (ret=%d)\n", __FUNCTION__, ret);
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if ((ret = unw_set_reg (&c, UNW_IA64_IP, 99)) != -UNW_EREADONLYREG)
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panic ("%s: unw_set_reg (ip) returned %d instead of %d\n",
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__FUNCTION__, ret, -UNW_EREADONLYREG);
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if ((ret = unw_set_reg (&c, UNW_IA64_AR_LC, 99)) != -UNW_EREADONLYREG)
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panic ("%s: unw_set_reg (ar.lc) returned %d instead of %d\n",
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__FUNCTION__, ret, -UNW_EREADONLYREG);
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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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if (argc > 1)
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verbose = 1;
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test_func (checker);
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if (nerrors > 0)
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{
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fprintf (stderr, "FAILURE: detected %d errors\n", nerrors);
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exit (-1);
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}
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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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