mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-22 13:00:06 +00:00
51 lines
1.3 KiB
C
51 lines
1.3 KiB
C
|
/* Test program for profiling information collection (_mcount/gprof).
|
||
|
|
Copyright (C) 2017 Free Software Foundation, Inc.
|
||
|
|
This file is part of the GNU C Library.
|
||
|
|
|
||
|
|
The GNU C Library is free software; you can redistribute it and/or
|
||
|
|
modify it under the terms of the GNU Lesser General Public
|
||
|
|
License as published by the Free Software Foundation; either
|
||
|
|
version 2.1 of the License, or (at your option) any later version.
|
||
|
|
|
||
|
|
The GNU C Library 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
|
||
|
|
Lesser General Public License for more details.
|
||
|
|
|
||
|
|
You should have received a copy of the GNU Lesser General Public
|
||
|
|
License along with the GNU C Library; if not, see
|
||
|
|
<http://www.gnu.org/licenses/>. */
|
||
|
|
|
||
|
|
/* This program does not use the test harness because we want tight
|
||
|
|
control over the call graph. */
|
||
|
|
|
||
|
|
__attribute__ ((noinline, noclone, weak)) void
|
||
|
|
f1 (void)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
__attribute__ ((noinline, noclone, weak)) void
|
||
|
|
f2 (void)
|
||
|
|
{
|
||
|
|
f1 ();
|
||
|
|
/* Prevent tail call. */
|
||
|
|
asm volatile ("");
|
||
|
|
}
|
||
|
|
|
||
|
|
__attribute__ ((noinline, noclone, weak)) void
|
||
|
|
f3 (int count)
|
||
|
|
{
|
||
|
|
for (int i = 0; i < count; ++i)
|
||
|
|
{
|
||
|
|
f1 ();
|
||
|
|
f2 ();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
main (void)
|
||
|
|
{
|
||
|
|
f3 (1000);
|
||
|
|
return 0;
|
||
|
|
}
|