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Add copyright notice.

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Make it an automatic test.

(Logical change 1.45)
This commit is contained in:
mostang.com!davidm 2003-02-08 10:10:59 +00:00
parent 31d99ecca6
commit d0e021d85b
1 changed files with 63 additions and 9 deletions
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72
tests/test-resume-sig.c
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@ -1,26 +1,62 @@
/* libunwind - a platform-independent unwind library
Copyright (C) 2003 Hewlett-Packard Co
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
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. */
/* Verify that unw_resume() restores the signal mask at proper time. */ /* Verify that unw_resume() restores the signal mask at proper time. */
#define UNW_LOCAL_ONLY
#include <libunwind.h> #include <libunwind.h>
#include <signal.h> #include <signal.h>
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <unistd.h> #include <unistd.h>
#define panic(args...) \ #define panic(args...) \
{ fprintf (stderr, args); exit (-1); } do { fprintf (stderr, args); ++nerrors; } while (0)
int verbose;
int nerrors;
int got_usr1, got_usr2; int got_usr1, got_usr2;
char *sigusr1_sp; char *sigusr1_sp;
void void
handler (int sig) handler (int sig)
{ {
unw_word_t ip;
sigset_t mask; sigset_t mask;
unw_context_t uc; unw_context_t uc;
unw_cursor_t c; unw_cursor_t c;
unw_word_t ip;
char foo; char foo;
#if UNW_TARGET_IA64
void *bsp = __builtin_ia64_bsp ();
if (verbose)
printf ("bsp = %p\n", bsp);
#endif
if (verbose)
printf ("got signal %d\n", sig);
if (sig == SIGUSR1) if (sig == SIGUSR1)
{ {
++got_usr1; ++got_usr1;
@ -39,25 +75,43 @@ handler (int sig)
unw_step(&c); /* step to signal trampoline */ unw_step(&c); /* step to signal trampoline */
unw_step(&c); /* step to signaller frame (main ()) */ unw_step(&c); /* step to signaller frame (main ()) */
unw_get_reg(&c, UNW_REG_IP, &ip); unw_get_reg(&c, UNW_REG_IP, &ip);
printf ("resuming at 0x%lx\n", ip); if (verbose)
printf ("resuming at 0x%lx, with SIGUSR2 pending\n", ip);
unw_resume(&c); unw_resume(&c);
} }
else if (sig == SIGUSR2) else if (sig == SIGUSR2)
{ {
++got_usr2; ++got_usr2;
if (got_usr1) if (got_usr1)
if (sigusr1_sp != &foo) {
panic ("Stack pointer changed from %p to %p between signals\n", if (sigusr1_sp != &foo)
sigusr1_sp, &foo); panic ("Stack pointer changed from %p to %p between signals\n",
sigusr1_sp, &foo);
else if (verbose)
printf ("OK: stack still at %p\n", &foo);
}
signal (SIGUSR2, SIG_IGN); signal (SIGUSR2, SIG_IGN);
} else }
panic ("Got unexpected signal %d\n", sig); else
panic ("Got unexpected signal %d\n", sig);
} }
int int
main (int argc, char **argv) main (int argc, char **argv)
{ {
if (argc > 1)
verbose = 1;
signal (SIGUSR1, handler); signal (SIGUSR1, handler);
if (verbose)
printf ("sending SIGUSR1\n");
kill (getpid (), SIGUSR1); kill (getpid (), SIGUSR1);
if (nerrors)
fprintf (stderr, "FAILURE: detected %d errors\n", nerrors);
if (verbose)
printf ("SUCCESS\n");
return 0; return 0;
} }