binutils-gdb/gdb/testsuite/gdb.base/stap-probe.c
Joel Brobecker 61baf725ec update copyright year range in GDB files
This applies the second part of GDB's End of Year Procedure, which
updates the copyright year range in all of GDB's files.

gdb/ChangeLog:

        Update copyright year range in all GDB files.
2017-01-01 10:52:34 +04:00

114 lines
2.5 KiB
C

/* This testcase is part of GDB, the GNU debugger.
Copyright 2012-2017 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#if USE_PROBES
#define _SDT_HAS_SEMAPHORES
__extension__ unsigned short test_user_semaphore __attribute__ ((unused)) __attribute__ ((section (".probes")));
#define TEST test_user_semaphore
__extension__ unsigned short test_two_semaphore __attribute__ ((unused)) __attribute__ ((section (".probes")));
#define TEST2 test_two_semaphore
__extension__ unsigned short test_m4_semaphore __attribute__ ((unused)) __attribute__ ((section (".probes")));
__extension__ unsigned short test_pstr_semaphore __attribute__ ((unused)) __attribute__ ((section (".probes")));
__extension__ unsigned short test_ps_semaphore __attribute__ ((unused)) __attribute__ ((section (".probes")));
#else
#define TEST 1
#define TEST2 1
#endif
#include <sys/sdt.h>
/* We only support SystemTap and only the v3 form. */
#if _SDT_NOTE_TYPE != 3
#error "not using SystemTap v3 probes"
#endif
struct funcs
{
int val;
const char *(*ps) (int);
};
static void
m1 (void)
{
/* m1 and m2 are equivalent, but because of some compiler
optimizations we have to make each of them unique. This is why
we have this dummy variable here. */
volatile int dummy = 0;
if (TEST2)
STAP_PROBE1 (test, two, dummy);
}
static void
m2 (void)
{
if (TEST2)
STAP_PROBE (test, two);
}
static int
f (int x)
{
if (TEST)
STAP_PROBE1 (test, user, x);
return x+5;
}
static const char *
pstr (int val)
{
const char *a = "This is a test message.";
const char *b = "This is another test message.";
STAP_PROBE3 (test, ps, a, b, val);
return val == 0 ? a : b;
}
static void
m4 (const struct funcs *fs, int v)
{
STAP_PROBE3 (test, m4, fs->val, fs->ps (v), v);
}
int
main()
{
struct funcs fs;
fs.val = 42;
fs.ps = pstr;
f (f (23));
m1 ();
m2 ();
m4 (&fs, 0);
m4 (&fs, 1);
return 0; /* last break here */
}